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CN116407225A - a cutting device - Google Patents

a cutting device
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Publication number
CN116407225A
CN116407225ACN202111678798.1ACN202111678798ACN116407225ACN 116407225 ACN116407225 ACN 116407225ACN 202111678798 ACN202111678798 ACN 202111678798ACN 116407225 ACN116407225 ACN 116407225A
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China
Prior art keywords
catheter
shaft
clamping
assembly
handle body
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CN202111678798.1A
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Chinese (zh)
Inventor
房金锋
郑迪
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Lifetech Scientific Shenzhen Co Ltd
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Lifetech Scientific Shenzhen Co Ltd
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Application filed by Lifetech Scientific Shenzhen Co LtdfiledCriticalLifetech Scientific Shenzhen Co Ltd
Priority to CN202111678798.1ApriorityCriticalpatent/CN116407225A/en
Priority to US18/724,570prioritypatent/US20250099129A1/en
Priority to PCT/CN2022/142344prioritypatent/WO2023125539A1/en
Priority to EP22914792.1Aprioritypatent/EP4458289A4/en
Publication of CN116407225ApublicationCriticalpatent/CN116407225A/en
Pendinglegal-statusCriticalCurrent

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Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to a cutting device which comprises a handle body, a catheter communicated with the handle body and a cutter head assembly arranged at the far end of the catheter, wherein a torque shaft connected with the cutter head assembly is arranged in the catheter, a driving mechanism for driving the torque shaft to rotate is arranged on the handle body, and the catheter is detachably connected with the driving mechanism; the invention adopts the detachable structure of the catheter and the handle body, can be replaced in time when the catheter is blocked, is beneficial to the smooth operation, ensures the success rate of the operation, and avoids the risk caused by the blockage of the catheter.

Description

Translated fromChinese
一种切除装置a cutting device

技术领域technical field

本发明属于医疗器械技术领域,具体涉及一种切除装置。The invention belongs to the technical field of medical instruments, and in particular relates to a resection device.

背景技术Background technique

随着中国人口老龄化程度的日益加深及饮食结构的改变,血管 病变发病率急剧上升。外周动脉疾病是血管病变的其中之一,外周 动脉疾病的主要病因是动脉粥样硬化,常表现为四肢、腹腔动脉、 颈动脉和肾动脉等缺血性改变,治疗方法主要包括以药物治疗为主 的基础治疗,包括经典的外科旁路术为代表的开放式外科手术治疗 和新近发展的血管腔内介入治疗。With the deepening of China's aging population and changes in dietary structure, the incidence of vascular disease has risen sharply. Peripheral arterial disease is one of the vascular lesions. The main cause of peripheral arterial disease is atherosclerosis, which often manifests as ischemic changes in the extremities, celiac artery, carotid artery, and renal artery. The treatment methods mainly include drug therapy. The main basic treatment includes open surgical treatment represented by classic surgical bypass and newly developed endovascular interventional treatment.

虽然外科旁路术具有相对优越的长期通畅率,但是血管腔内介 入治疗技术以其微创、安全有效、可重复性的优势逐步被临床医生 和患者所接受。其中,外周斑块旋切术主要针对股、腘及膝下动脉 狭窄或闭塞。Although surgical bypass has a relatively superior long-term patency rate, endovascular interventional therapy is gradually accepted by clinicians and patients due to its advantages of minimal invasiveness, safety, effectiveness, and repeatability. Among them, peripheral atherectomy is mainly aimed at femoral, popliteal and subgenital artery stenosis or occlusion.

在实际临床应用中,医生可以根据患者外周血管病变的情况, 选择旋切术进行处理,在旋切的过程中,由于斑块在不断的沿着导 管往手柄方向排出,难免会遇到斑块或者血栓卡在导管上的情况。 一旦斑块或者血栓卡在导管内部,则会影响手术效率。另外,当导管内斑块或者血栓无法及时排出,刀头切除的斑块或者血栓很大概 率会因为没有及时排出血管,而造成其他远端血管的栓塞,危机病 人的安全。In actual clinical application, doctors can choose rotary resection according to the patient's peripheral vascular lesions. During the process of rotary resection, since the plaque is continuously discharged along the catheter to the handle, it is inevitable to encounter plaque. Or if a blood clot gets stuck in the catheter. Once plaque or thrombus gets stuck inside the catheter, it will affect the efficiency of the operation. In addition, when the plaque or thrombus in the catheter cannot be discharged in time, there is a high probability that the plaque or thrombus removed by the knife head will cause embolism of other distal blood vessels due to the failure to discharge the blood vessel in time, endangering the safety of the patient.

因此,需要一种新的技术手段解决现有技术的上述问题。Therefore, a new technical means is needed to solve the above-mentioned problems of the prior art.

发明内容Contents of the invention

本发明的目的是至少解决现有切除装置由于导管堵塞而导致手 术时间延长甚至失败的问题。The purpose of the present invention is to at least solve the problem that the existing resection device prolongs or even fails the operation time due to catheter blockage.

本发明提出了一种切除装置,包括手柄本体、连通于所述手柄 本体的导管以及设置在所述导管远端的刀头组件,其中,所述导管 内设置有连接于所述刀头组件的扭矩轴,所述手柄本体上设置有用 于驱动所述扭矩轴转动的驱动机构,所述导管与所述驱动机构可拆 卸连接。The present invention proposes a resection device, which includes a handle body, a catheter connected to the handle body, and a knife head assembly arranged at the distal end of the catheter, wherein a knife connected to the knife head assembly is arranged in the catheter The torque shaft, the handle body is provided with a drive mechanism for driving the torque shaft to rotate, and the conduit is detachably connected to the drive mechanism.

通过本发明中的切除装置,通过采用导管与手柄本体可拆卸的 结构,在导管堵塞时可以及时进行更换,有利于手术的顺利进行, 并保证手术的成功率,避免导管堵塞而导致的风险。Through the resection device in the present invention, by adopting the detachable structure of the catheter and the handle body, it can be replaced in time when the catheter is blocked, which is conducive to the smooth progress of the operation, ensures the success rate of the operation, and avoids the risk caused by the catheter blockage.

另外,根据本发明的切除装置,还可具有如下附加的技术特征:In addition, the resection device according to the present invention may also have the following additional technical features:

在本发明的一些实施方式中,其中,所述驱动机构包括设置在 所述手柄本体内的驱动模块,所述驱动模块包括动力轴、用于驱动 所述动力轴转动的动力源以及电源组件,所述导管通过连接模块可 拆卸连接于所述动力轴。In some embodiments of the present invention, wherein the drive mechanism includes a drive module disposed in the handle body, the drive module includes a power shaft, a power source for driving the power shaft to rotate, and a power supply assembly, The conduit is detachably connected to the power shaft through a connection module.

在本发明的一些实施方式中,其中,所述扭矩轴的近端设置有 传动轴,所述动力轴的远端设置有插接槽,所述传动轴插接在所述 插接槽内且与所述动力轴同步转动;所述传动轴上设置有卡接槽, 所述连接模块包括与所述卡接槽卡合连接的卡接定位组件以及用于 控制所述卡接定位组件的卡接控制组件。In some embodiments of the present invention, wherein, the proximal end of the torque shaft is provided with a transmission shaft, and the distal end of the power shaft is provided with an insertion slot, and the transmission shaft is inserted into the insertion slot and Rotate synchronously with the power shaft; the transmission shaft is provided with a clamping groove, and the connection module includes a clamping and positioning component that is clamped and connected with the clamping groove and a card for controlling the clamping and positioning component Connect the control unit.

在本发明的一些实施方式中,其中,所述卡接定位组件包括设 置在所述动力轴上且与所述卡接槽卡合连接的卡接件、活动连接于 所述动力轴且用于定位所述卡接件的定位件以及连接于所述卡接控 制组件与所述卡接件的连接端部,所述卡接控制组件通过控制所述 连接端部以控制所述卡接件与所述卡接槽卡合连接或分离。In some embodiments of the present invention, wherein, the clamping positioning assembly includes a clamping piece arranged on the power shaft and engaged with the clamping slot, movably connected to the power shaft and used for The locating piece for positioning the clamping piece is connected to the connecting end of the clamping control assembly and the clamping piece, and the clamping control component controls the connection between the clamping piece and the clamping piece by controlling the connecting end. The clamping slots are clamped to connect or separate.

在本发明的一些实施方式中,其中,所述卡接控制组件包括设 置在所述手柄本体上轴套、固定设置在所述轴套内侧的固定端部、 与所述轴套活动连接且设置在所述定位件与所述连接端部之间的活 动端部以及用于控制所述活动端部移动的卡接控制件,所述动力轴 穿过所述固定端部以及所述活动端部后连接件于所述传动轴。In some embodiments of the present invention, wherein, the snap-in control assembly includes a bushing arranged on the handle body, a fixed end portion fixed inside the bushing, and a fixed end part that is movably connected with the bushing and set The movable end between the positioning part and the connecting end and the clamping control part used to control the movement of the movable end, the power shaft passes through the fixed end and the movable end The rear connector is on the drive shaft.

在本发明的一些实施方式中,其中,所述固定段部为与所述动 力轴连接的固定轴承,所述活动端部为沿所述轴套的轴向方向与所 述轴套滑动连接的滑块,所述卡接控制件包括连接于所述固定轴承 与所述滑块的弹性件以及用于控制所述滑块位置的拉绳。In some embodiments of the present invention, wherein, the fixed section is a fixed bearing connected to the power shaft, and the movable end is slidably connected to the shaft sleeve along the axial direction of the shaft sleeve. The slider, the clamping control part includes an elastic member connected to the fixed bearing and the slider, and a pull cord for controlling the position of the slider.

在本发明的一些实施方式中,其中,所述拉绳的末端设置有拉 环,所述连接端部与所述卡接件一体连接,所述连接端部的近端翘 起,所述滑块在所述连接端部与所述卡接件之间滑移。In some embodiments of the present invention, wherein, the end of the pull cord is provided with a pull ring, the connecting end is integrally connected with the clamping member, the proximal end of the connecting end is raised, and the sliding A block slides between the connecting end and the clip.

在本发明的一些实施方式中,其中,所述手柄本体上设置有收 集部,所述收集部可拆卸连接于所述手柄本体且罩设在所述导管近 端的外侧,所述导管的近端与所述收集部可拆卸连接;所述导管的 近端设置有缓冲座,所述缓冲座上设置有密封槽,所述手柄本体与 所述收集部分别通过所述密封槽与所述导管连接。In some embodiments of the present invention, wherein, the handle body is provided with a collection part, the collection part is detachably connected to the handle body and is arranged on the outside of the proximal end of the catheter, and the proximal end of the catheter is end is detachably connected to the collection part; the proximal end of the catheter is provided with a buffer seat, and the buffer seat is provided with a sealing groove, and the handle body and the collection part pass through the sealing groove and the catheter respectively. connect.

在本发明的一些实施方式中,其中,所述刀头组件包括连接于 所述导管的限位座以及设置在所述限位座上的旋切刀头,所述旋切 刀头固定连接于所述扭矩轴的一端,所述扭矩轴驱动所述旋切刀头 转动连接于所述限位座,所述限位座上设置有罩设在所述旋切刀头 侧面的保护套。In some embodiments of the present invention, wherein, the cutter head assembly includes a limit seat connected to the conduit and a rotary cutter head arranged on the limit seat, the rotary cutter head is fixedly connected to One end of the torque shaft, which drives the rotary cutter head to rotate, is connected to the limit seat, and the limit seat is provided with a protective sleeve covering the side of the rotary cutter head.

在本发明的一些实施方式中,其中,所述导管包括内管以及设 置在所述内管外侧的外管,所述内管套设在所述扭矩轴的外侧,所 述扭矩轴与所述内管为间隙配合,所述内管与外管之间设置有编织 层。In some embodiments of the present invention, wherein, the catheter includes an inner tube and an outer tube arranged outside the inner tube, the inner tube is sleeved on the outside of the torque shaft, and the torque shaft is connected to the The inner tube is clearance fit, and a braided layer is arranged between the inner tube and the outer tube.

附图说明Description of drawings

图1为本发明的实施例一中切除装置的结构示意图;FIG. 1 is a schematic structural view of a resection device in Embodiment 1 of the present invention;

图2为本发明的实施例一中手柄本体的内部结构示意图;2 is a schematic diagram of the internal structure of the handle body in Embodiment 1 of the present invention;

图3为本发明的实施例一中驱动传动组件的结构示意图;Fig. 3 is a schematic structural view of the drive transmission assembly in Embodiment 1 of the present invention;

图4为本发明的实施例一中刀头组件的结构示意图;4 is a schematic structural view of the cutter head assembly in Embodiment 1 of the present invention;

图5为本发明的实施例一中导管的结构示意图;5 is a schematic structural view of a catheter in Embodiment 1 of the present invention;

图6为本发明的实施例一中调弯组件的结构示意图;6 is a schematic structural view of the bending assembly in Embodiment 1 of the present invention;

图7为本发明的实施例一中导管弯曲后的结构示意图;Fig. 7 is a schematic structural view of the bent catheter in Embodiment 1 of the present invention;

图8是本发明的实施例一中控制组件的整体结构示意图;8 is a schematic diagram of the overall structure of the control assembly in Embodiment 1 of the present invention;

图9为本发明的实施例一中控制组件的剖面图;Fig. 9 is a sectional view of the control assembly in Embodiment 1 of the present invention;

图10为本发明的实施例一中控制组件的剖面的侧视图;Fig. 10 is a side view of a section of a control assembly in Embodiment 1 of the present invention;

图11为本发明的实施例一中调节模块处于低速切割时的整体结 构示意图;Fig. 11 is a schematic diagram of the overall structure of the regulating module in embodiment one of the present invention when it is in low-speed cutting;

图12是本发明的实施例一中调节模块处于高速切割时的整体结 构示意图;Fig. 12 is a schematic diagram of the overall structure of the regulating module in the first embodiment of the present invention when it is in high-speed cutting;

图13是本发明的实施例一中低速切割时调节模块的部分结构示 意图;Fig. 13 is a partial structural diagram of the adjustment module during low-speed cutting in Embodiment 1 of the present invention;

图14是本发明的实施例一中高速切割时调节模块的部分结构示 意图;Fig. 14 is a partial structural diagram of the adjustment module during high-speed cutting in Embodiment 1 of the present invention;

图15是本发明的实施例一中调速键的结构示意图;Fig. 15 is a schematic structural view of the speed control key in Embodiment 1 of the present invention;

图16是本发明的实施例一中拆卸连接部的整体结构示意图;Fig. 16 is a schematic diagram of the overall structure of the detachable connection part in Embodiment 1 of the present invention;

图17是本发明的实施例一中手柄本体的爆炸图;Fig. 17 is an exploded view of the handle body in Embodiment 1 of the present invention;

图18是本发明的实施例一中卡合组件的部分结构示意图;Fig. 18 is a partial structural schematic diagram of the engaging assembly in Embodiment 1 of the present invention;

图19是本发明的实施例一中手柄本体与手柄上盖的连接结构示 意图;Fig. 19 is a schematic diagram of the connection structure between the handle body and the handle upper cover in Embodiment 1 of the present invention;

图20是本发明的实施例一中手柄本体与驱动机构的连接结构示 意图;Fig. 20 is a schematic diagram of the connection structure between the handle body and the driving mechanism in Embodiment 1 of the present invention;

图21是本发明的实施例一中卡合组件的部分结构示意图;Fig. 21 is a partial structural schematic diagram of the engaging assembly in Embodiment 1 of the present invention;

图22是本发明的实施例二中导管和调弯组件的结构示意图;Fig. 22 is a schematic structural view of the catheter and the bending assembly in Embodiment 2 of the present invention;

图23是本发明的实施例三中手柄本体的整体结构示意图;Fig. 23 is a schematic diagram of the overall structure of the handle body in Embodiment 3 of the present invention;

图24是本发明的实施例三中控制组件的内部结构示意图;Fig. 24 is a schematic diagram of the internal structure of the control assembly in Embodiment 3 of the present invention;

图25是本发明的实施例四中手柄本体的整体结构示意图;Fig. 25 is a schematic diagram of the overall structure of the handle body in Embodiment 4 of the present invention;

图26是本发明的实施例四中控制组件的内部结构示意图;Fig. 26 is a schematic diagram of the internal structure of the control assembly in Embodiment 4 of the present invention;

图27是本发明的实施例四中控制组件的部分结构示意图;Fig. 27 is a partial structural schematic diagram of the control assembly in Embodiment 4 of the present invention;

图28是本发明的实施例五中手柄本体的立体结构示意图;Fig. 28 is a schematic perspective view of the three-dimensional structure of the handle body in Embodiment 5 of the present invention;

图29是本发明的实施例五中手柄本体的内部结构示意图;Fig. 29 is a schematic diagram of the internal structure of the handle body in Embodiment 5 of the present invention;

图30是本发明的实施例五中手柄本体的爆炸图;Fig. 30 is an exploded view of the handle body in Embodiment 5 of the present invention;

图31是本发明的实施例五中导管的部分结构示意图;Fig. 31 is a partial structural schematic diagram of the catheter in Embodiment 5 of the present invention;

图32是本发明的实施例五中图29的A处的放大图;Fig. 32 is an enlarged view at A of Fig. 29 in Embodiment 5 of the present invention;

图33是本发明的实施例五中图29的B处的放大图。Fig. 33 is an enlarged view at B of Fig. 29 in Embodiment 5 of the present invention.

具体实施方式Detailed ways

下面将参照附图更详细地描述本发明的示例性实施方式。虽然 附图中显示了本发明的示例性实施方式,然而应当理解,可以以各 种形式实现本发明而不应被这里阐述的实施方式所限制。相反,提 供这些实施方式是为了能够更透彻地理解本发明,并且能够将本发 明的范围完整的传达给本领域的技术人员。Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

应理解的是,文中使用的术语仅出于描述特定示例实施方式的 目的,而无意于进行限制。除非上下文另外明确地指出,否则如文 中使用的单数形式“一”、“一个”以及“所述”也可以表示包括复 数形式。术语“包括”、“包含”、“含有”以及“具有”是包含性的, 并且因此指明所陈述的特征、步骤、操作、元件和/或部件的存在, 但并不排除存在或者添加一个或多个其它特征、步骤、操作、元件、 部件、和/或它们的组合。文中描述的方法步骤、过程、以及操作不 解释为必须要求它们以所描述或说明的特定顺序执行,除非明确指 出执行顺序。还应当理解,可以使用另外或者替代的步骤。It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are meant to include the plural forms as well, unless the context clearly dictates otherwise. The terms "comprising", "comprising", "containing" and "having" are inclusive and thus indicate the presence of stated features, steps, operations, elements and/or parts but do not exclude the presence or addition of one or Various other features, steps, operations, elements, components, and/or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless an order of performance is specifically indicated. It should also be understood that additional or alternative steps may be used.

尽管可以在文中使用术语第一、第二、第三等来描述多个元件、 部件、区域、层和/或部段,但是,这些元件、部件、区域、层和/ 或部段不应被这些术语所限制。这些术语可以仅用来将一个元件、 部件、区域、层或部段与另一区域、层或部段区分开。除非上下文 明确地指出,否则诸如“第一”、“第二”之类的术语以及其它数字 术语在文中使用时并不暗示顺序或者次序。Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be referred to as These terms are limited. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context.

为了便于描述,可以在文中使用空间相对关系术语来描述如图 中示出的一个元件或者特征相对于另一元件或者特征的关系,这些 相对关系术语例如为“内部”、“外部”、“内侧”、“外侧”、“下面”、 “下方”、“上面”、“上方”等。这种空间相对关系术语意于包括除图中描绘的方位之外的在使用或者操作中装置的不同方位。例如, 如果在图中的装置翻转,那么描述为“在其它元件或者特征下面” 或者“在其它元件或者特征下方”的元件将随后定向为“在其它元 件或者特征上面”或者“在其它元件或者特征上方”。因此,示例 术语“在……下方”可以包括在上和在下的方位。装置可以另外定 向(旋转90度或者在其它方向)并且文中使用的空间相对关系描述 符相应地进行解释。For the convenience of description, spatial relative terms may be used herein to describe the relationship of one element or feature as shown in the figures with respect to another element or feature, such as "inner", "outer", "inner". ", "Outside", "Below", "Below", "Above", "Above" and so on. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "beneath" the other elements or features. feature above". Thus, the example term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

为了便于描述,以下描述使用术语“近端”和“远端”,其中“近 端”是指的是离操作者近的一端,“远端”是指远离操作者的一端, 短语“轴向方向”,本专利里应当被理解成表示介入元件被推进和推 出的方向,与“轴向方向”相垂直的方向定义为“径向方向”。For ease of description, the following description uses the terms "proximal end" and "distal end", where "proximal end" refers to the end closer to the operator, and "distal end" refers to the end farther away from the operator, the phrase "axial "Direction" in this patent should be understood as the direction in which the intervention element is pushed and pushed out, and the direction perpendicular to the "axial direction" is defined as the "radial direction".

实施例一Embodiment one

本发明的实施例一提出了一种切除装置,如图1至图3所示, 包括手柄本体100、连通于手柄本体100的导管200以及设置在导管 200远端的刀头组件300,导管200内设置有连接于刀头组件300的 扭矩轴210。结合图5所示,导管200上设置有用于调弯导管200 远端部位的调弯组件220,手柄本体100上设置有可拆卸连接于手柄 本体100的驱动机构400。结合图11所示,驱动机构400包括用于 驱动扭矩轴210转动的驱动模块410以及用于控制驱动模块410以 调节扭矩轴210扭矩的调节模块420。Embodiment 1 of the present invention proposes a resection device, as shown in FIGS. Atorque shaft 210 connected to thecutter head assembly 300 is disposed inside. 5, thecatheter 200 is provided with a bendingassembly 220 for adjusting the distal end of thecatheter 200, and thehandle body 100 is provided with adrive mechanism 400 detachably connected to thehandle body 100. As shown in FIG. 11 , thedriving mechanism 400 includes adriving module 410 for driving thetorque shaft 210 to rotate and anadjusting module 420 for controlling thedriving module 410 to adjust the torque of thetorque shaft 210.

本发明通过调弯组件220调节远端导管200的弯曲半径,使导 管200朝向预定方向偏移,并控制刀头组件300的朝向,降低刮伤 血管及血管穿孔的风险,能够通过多次切除得到理想的血管管径; 同时,设置用于调节扭矩轴210扭矩的调节模块420,以使斑块切除 装置在切除较硬的斑块时,可以通过调整扭矩轴210的扭矩使斑块 切除更加顺畅;另一方面,通过设置可拆卸连接于手柄本体100的 驱动机构400,以使驱动机构400可以循环使用,降低斑块切除装置 的使用成本。In the present invention, the bending radius of thedistal catheter 200 is adjusted by the bendingassembly 220, so that thecatheter 200 is shifted toward a predetermined direction, and the orientation of thecutter head assembly 300 is controlled to reduce the risk of scratching blood vessels and blood vessel perforation, which can be obtained by multiple resections. ideal blood vessel diameter; at the same time, anadjustment module 420 for adjusting the torque of thetorque shaft 210 is provided, so that when the atherectomy device removes a hard plaque, the torque of thetorque shaft 210 can be adjusted to make the plaque excision more smooth ; On the other hand, by setting thedriving mechanism 400 detachably connected to thehandle body 100, thedriving mechanism 400 can be recycled, reducing the cost of using the atherectomy device.

具体的,如图4所示,刀头组件300包括连接于导管200的限 位座310以及设置在限位座310上的旋切刀头320,旋切刀头320 固定连接于扭矩轴210的一端,扭矩轴210驱动旋切刀头320转动 连接于限位座310,限位座310上设置有罩设在旋切刀头320侧面的 保护套330。Specifically, as shown in FIG. 4 , thecutter head assembly 300 includes alimit seat 310 connected to theconduit 200 and arotary cutter head 320 arranged on thelimit seat 310 , therotary cutter head 320 is fixedly connected to thetorque shaft 210 At one end, thetorque shaft 210 drives therotary cutter head 320 to rotate and is connected to thelimit seat 310 , and thelimit seat 310 is provided with aprotective cover 330 covering the side of therotary cutter head 320 .

如图5所示,导管200包括内管230以及设置在内管230外侧 的外管240,内管230套设在扭矩轴210的外侧,扭矩轴210与内管 230为间隙配合,扭矩轴210贯穿内管230的整个内腔。As shown in FIG. 5 , thecatheter 200 includes aninner tube 230 and anouter tube 240 arranged on the outside of theinner tube 230. Theinner tube 230 is sleeved on the outside of thetorque shaft 210. Thetorque shaft 210 and theinner tube 230 are clearance fit. Thetorque shaft 210 It runs through the entire lumen of theinner tube 230 .

进一步地,内管230与外管240之间设置有编织层250,其中, 编织层250具体为编织网,编织网通过镍钛丝编织形成。内管230 和外管240之间通过编织层250连接,从而增强了导管200的韧性, 在导管200穿入分支血管,或者通过血管的弯曲部位时,导管200 不会出现局部凹陷折弯的现象,能够保证导管200的管腔完整,保 证了切除的斑块的通过性,使斑块不会堵在导管200折弯处。Further, abraided layer 250 is disposed between theinner tube 230 and theouter tube 240, wherein thebraided layer 250 is specifically a braided mesh, and the braided mesh is formed by weaving nickel-titanium wires. Theinner tube 230 and theouter tube 240 are connected by thebraiding layer 250, thereby enhancing the toughness of thecatheter 200, and when thecatheter 200 penetrates into a branch blood vessel or passes through a curved part of a blood vessel, thecatheter 200 will not be partially concave and bent , which can ensure the integrity of the lumen of thecatheter 200 and ensure the passage of the resected plaque so that the plaque will not be blocked at the bend of thecatheter 200 .

具体的,旋切刀头320通过焊接的方式固定在扭矩轴210的端 部,扭矩轴210转动从而带动旋切刀头320转动。旋切刀头320上 设置有刀头卡槽321,限位座310的远端设置有限位凸台311,限位 凸台311与刀头卡槽321卡接配合,从而实现旋切刀头320与限位 座310之间的轴向和径向限位。Specifically, therotary cutter head 320 is fixed on the end of thetorque shaft 210 by welding, and thetorque shaft 210 rotates to drive therotary cutter head 320 to rotate. Therotary cutter head 320 is provided with acutter head slot 321, and the far end of thelimit seat 310 is provided with alimit boss 311, and thelimit boss 311 is engaged with thecutter head groove 321, thereby realizing the rotation of therotary cutter head 320. Axial and radial spacing between the limitingseat 310.

其中,旋切刀头320、限位座310与保护套330均为不锈钢材质。 同时,限位座310的远端设置有具有弹性的弹片312,限位凸台311 设置在弹片312上。由于刀头组件300整体通过硬质金属材质制成, 因此旋切刀头320与限位座310的装配工艺复杂。本实施例通过在限位座310的远端设置弹片312,而弹片312具有弹性,能够在装配 时产生弹性形变,以使限位凸台311顺利的卡入刀头卡槽321中。 保护套330罩设在限位座310的外侧,同时保护套330紧贴限位座310的外表面,因此在完成保护套330的装配后,弹片312被限制在 旋切刀头320与保护套310之间,从而完成限位凸台312与刀头卡 槽321的卡接配合,进而实现旋切刀头320与限位座310之间的轴 向和径向限位。Wherein, therotary cutter head 320, thelimit seat 310 and theprotective cover 330 are all made of stainless steel. At the same time, the distal end of the limitingseat 310 is provided with an elasticelastic piece 312 , and the limitingboss 311 is arranged on theelastic piece 312 . Since thecutter head assembly 300 is made of hard metal as a whole, the assembly process of therotary cutter head 320 and the limitingseat 310 is complicated. In this embodiment, anelastic piece 312 is provided at the far end of the limitingseat 310, and theelastic piece 312 is elastic and can be elastically deformed during assembly, so that the limitingboss 311 can be smoothly inserted into thecutter head slot 321. Theprotective cover 330 is set on the outside of thelimit seat 310, and theprotective cover 330 is close to the outer surface of thelimit seat 310. Therefore, after the assembly of theprotective cover 330 is completed, theshrapnel 312 is limited between therotary cutter head 320 and the protective cover. 310, so as to complete the clamping fit between thelimit boss 312 and thecutter head slot 321, and then realize the axial and radial limit between therotary cutter head 320 and thelimit seat 310.

导管200由内至外依次包括内管230、编织层250以及外管240, 并且内管230、编织层250以及外管240通过热熔的方式形成一个整 体。进一步地,导管200的远端设置有弹簧管260,弹簧管260套设 在编织层250的外侧,或编织层250套设在弹簧管260的外侧,弹 簧管260通过焊接的方式与编织层250轴向固定。在本实施例中, 弹簧管260套设在编织层250的外侧。通过在导管200的远端设置 弹簧管260,从而增强导管200远端的顺应性和回弹性。在其他实施 例中,弹簧管260还可以埋设在外管240内。Thecatheter 200 includes aninner tube 230, abraided layer 250 and anouter tube 240 from the inside to the outside in sequence, and theinner tube 230, thebraided layer 250 and theouter tube 240 form a whole by thermal fusion. Further, the distal end of thecatheter 200 is provided with aspring tube 260, and thespring tube 260 is sleeved on the outside of thebraided layer 250, or thebraided layer 250 is sleeved on the outside of thespring tube 260, and thespring tube 260 is welded to thebraided layer 250. Axially fixed. In this embodiment, thespring tube 260 is sleeved on the outer side of thebraided layer 250 . By arranging thespring tube 260 at the distal end of thecatheter 200, the compliance and resilience of the distal end of thecatheter 200 are enhanced. In other embodiments, thespring tube 260 can also be embedded in theouter tube 240.

本申请中,由于编织层250的抗折弯性能好,弹簧管260的抗 扭矩性能好。因此,导管200内设置编织层250,并且采用在导管 200的远端设置弹簧管260的结构,能够使得导管200远端能够兼顾 抗折弯以及抗扭矩性能,当导管200进行调弯时,通过编织层250 与弹簧管260的配合,避免了导管200因弯曲而出现局部的内凹形 变,能够在实现导管200弯曲的情况下,维持导管200的管腔的形 变,保证导管200与扭矩轴210之间的间隙足够通过斑块或血栓, 确保手术顺利进行。同时还能够保持良好的血管通过性,使得导管 200在进入较复杂弯曲的血管时,更加顺畅。In the present application, due to the good bending resistance of thebraided layer 250, thespring tube 260 has good torque resistance. Therefore, thebraided layer 250 is arranged in thecatheter 200, and thespring tube 260 is arranged at the distal end of thecatheter 200, so that the distal end of thecatheter 200 can take into account the performance of bending resistance and torque resistance. When thecatheter 200 is bent, through The cooperation of thebraid 250 and thespring tube 260 avoids local concave deformation of thecatheter 200 due to bending, and can maintain the deformation of the lumen of thecatheter 200 when thecatheter 200 is bent, ensuring that thecatheter 200 and thetorque shaft 210 The gap between them is enough to pass the plaque or thrombus to ensure the smooth operation. At the same time, it can also maintain a good blood vessel passability, so that thecatheter 200 can enter more complicated and curved blood vessels more smoothly.

保护套330与外管240通过热熔的方式固定,外管240为TPU 管或Pebax管,在本实施例中,外管240采用Pebax材质。Theprotective cover 330 and theouter tube 240 are fixed by thermal fusion, and theouter tube 240 is a TPU tube or a Pebax tube. In this embodiment, theouter tube 240 is made of Pebax material.

其中,结合图2,导管200上设置有缓冲套管270,导管200通 过缓冲套管270与手柄本体100连接,缓冲套管270与手柄本体100 的外壳通过卡合方式配合连接,缓冲套管270为TPU材质,或者其 他橡胶或者塑料材质。缓冲套管270设置为软性材质,能够消除导 管200在旋切时的震动,传递至手柄本体100的震动会明显减小, 从而为操作者的精细操作提供条件。Wherein, referring to FIG. 2 , abuffer sleeve 270 is provided on thecatheter 200, and thecatheter 200 is connected to thehandle body 100 through thebuffer sleeve 270. It is made of TPU, or other rubber or plastic materials. Thebuffer sleeve 270 is set as a soft material, which can eliminate the vibration of thecatheter 200 during rotary cutting, and the vibration transmitted to thehandle body 100 will be significantly reduced, thereby providing conditions for the fine operation of the operator.

进一步地,结合图11与图12所示,驱动机构400还包括驱动 壳体430、动力源411以及用于连接动力源411与扭矩轴210的驱动 传动组件412。调节模块420包括与驱动传动组件412连接的调节传 动组件421以及换挡组件422,换挡组件422用于控制调节传动组件421与驱动传动组件412的配合关系以调节扭矩轴210的扭矩,驱动 壳体430内设置有用于驱动动力源411的电源组件413。Further, as shown in FIG. 11 and FIG. 12 , thedriving mechanism 400 further includes a drivinghousing 430 , apower source 411 and adrive transmission assembly 412 for connecting thepower source 411 and thetorque shaft 210 . Theadjustment module 420 includes anadjustment transmission assembly 421 connected to thedrive transmission assembly 412 and ashift assembly 422. Theshift assembly 422 is used to control the cooperation between theadjustment transmission assembly 421 and thedrive transmission assembly 412 to adjust the torque of thetorque shaft 210. The drive housing Thebody 430 is provided with apower supply assembly 413 for driving thepower source 411 .

具体的,动力源411为设置在驱动壳体430内的电机,电源组 件413为设置在驱动壳体430内的电池,电池与电机电性连接。电 源组件413为动力源411供电,动力源411通过驱动传动组件412 带动扭矩轴210转动,扭矩轴210转动以使设置在远端的旋切刀头 320转动,从而切除血管中的斑块。手柄本体100上还设置有开关 160,通过开关160控制电机的工作状态。Specifically, thepower source 411 is a motor arranged in thedrive casing 430, thepower supply assembly 413 is a battery arranged in thedrive casing 430, and the battery is electrically connected to the motor. Thepower supply assembly 413 supplies power to thepower source 411, and thepower source 411 drives thetorque shaft 210 to rotate through thedrive transmission assembly 412, and thetorque shaft 210 rotates to rotate therotary cutter head 320 arranged at the distal end, thereby removing the plaque in the blood vessel. Thehandle body 100 is also provided with aswitch 160, through which the working state of the motor is controlled.

在其他实施例中,还可以在驱动壳体430上设置用于连接外部 电源且电性连接于动力源411的电源组件413。即当需要驱动动力源 411工作时,通过电源组件413连接外部电源,电源组件413包括设 置在驱动壳体430上的电源插口。通过设置电源插口的形式,能够降低手柄本体100及内部元器件杀菌消毒的难度及成本,并降低整 机的重量和运输难度。In other embodiments, apower supply assembly 413 for connecting to an external power supply and electrically connected to thepower source 411 may also be provided on thedrive housing 430. That is, when it is necessary to drive thepower source 411 to work, an external power supply is connected through thepower supply assembly 413, and thepower supply assembly 413 includes a power supply socket arranged on thedrive housing 430. By setting the form of the power socket, the difficulty and cost of sterilization and disinfection of thehandle body 100 and internal components can be reduced, and the weight and transportation difficulty of the whole machine can be reduced.

进一步地,结合图2所示,手柄本体100上设置有连接于导管 200的排出腔道500,排出腔道500连通于导管200与手柄本体100 的外部空间,扭矩轴210穿过排出腔道500并连接于驱动机构400。 排出腔道500包括连通于导管200的主腔体510以及设置在主腔体 510侧面的排废管520,扭矩轴210穿过主腔体510且连通于手柄本 体100的外部空间,扭矩轴210内设置有贯通扭矩轴210的导丝腔 211。Further, as shown in FIG. 2 , thehandle body 100 is provided with adischarge lumen 500 connected to theconduit 200 , thedischarge lumen 500 communicates with the outer space of theconduit 200 and thehandle body 100 , and thetorque shaft 210 passes through thedischarge lumen 500 And connected to thedrive mechanism 400 . Thedischarge lumen 500 includes amain cavity 510 connected to thecatheter 200 and awaste tube 520 arranged on the side of themain cavity 510. Thetorque shaft 210 passes through themain cavity 510 and communicates with the external space of thehandle body 100. The torque shaft 210 Aguide wire cavity 211 passing through thetorque shaft 210 is disposed inside.

具体的,扭矩轴210呈螺旋状设置。在斑块切除装置工作时, 电机驱动扭矩轴210转动,由于扭矩轴210呈螺旋状设置,因此扭 矩轴210可以在转动的过程中将斑块组织向后带出导管200。Specifically, thetorque shaft 210 is arranged in a helical shape. When the atherectomy device is working, the motor drives thetorque shaft 210 to rotate. Since thetorque shaft 210 is arranged in a helical shape, thetorque shaft 210 can take the plaque tissue out of thecatheter 200 backwards during the rotation.

扭矩轴210内的导丝腔211用于穿入导丝,导丝用于在导管200 伸入血管或者移动之前,先伸入血管或者分支血管,以建立导管200 的路入通路,使得导管200能够沿导丝建立的路入通路移动。Theguide wire lumen 211 in thetorque shaft 210 is used to penetrate the guide wire, and the guide wire is used to extend into the blood vessel or branch blood vessel before thecatheter 200 is inserted into the blood vessel or moved, so as to establish the access path of thecatheter 200, so that thecatheter 200 Able to move along the access pathway established by the guide wire.

其中,外管240的近端与主腔体510粘接固定,由旋切刀头320 切除的斑块组织通过扭矩轴210与内管230之间的间隙,随着扭矩 轴210的转动从导管200中排出到排出腔道500内,排出腔道500 的主腔体510暂时容纳切除的斑块组织,并最终通过排废管520将 斑块组织排出。排废管520设置在靠近主腔体510的近端部位,并 且沿斑块切除的方向倾斜设置,从而便于斑块的排出。Wherein, the proximal end of theouter tube 240 is glued and fixed to themain lumen 510, and the plaque tissue excised by therotary cutter head 320 passes through the gap between thetorque shaft 210 and theinner tube 230, and is released from the catheter along with the rotation of thetorque shaft 210. 200 is discharged into thedrainage channel 500 , themain cavity 510 of thedrainage channel 500 temporarily accommodates the resected plaque tissue, and finally the plaque tissue is discharged through thewaste drainage tube 520 . Thedrain tube 520 is arranged near the proximal end of themain cavity 510, and is arranged obliquely along the direction of plaque removal, so as to facilitate the discharge of the plaque.

在本实施例中,如图5至图7所示,手柄本体100上设置有用 于控制调弯组件220的控制组件140,调弯组件220包括至少两个调 弯点221以及用于连接调弯点221的调弯连接件222。结合图3所示, 控制组件140包括设置在手柄本体100上的控制座141以及活动连 接于控制座141的收线器142,收线器142用于连接调弯连接件222 且用于牵拉调弯连接件222以调整导管200的姿态。In this embodiment, as shown in FIGS. 5 to 7 , thehandle body 100 is provided with acontrol assembly 140 for controlling thebend adjustment assembly 220 , and thebend adjustment assembly 220 includes at least two bend adjustment points 221 and a Thebend connector 222 atpoint 221. As shown in FIG. 3 , thecontrol assembly 140 includes acontrol seat 141 disposed on thehandle body 100 and awire retractor 142 movably connected to thecontrol seat 141. Thewire retractor 142 is used for connecting the bendingadjustment connector 222 and for pulling The connectingpiece 222 is bent to adjust the posture of thecatheter 200 .

其中,调弯点221包括设置在导管200上的第一调弯点2213以 及第二调弯点2214,调弯连接件222与第一调弯点2213固定连接, 调弯连接件222与第二调弯点2214活动连接,第一调弯点2213与 导管200远端的距离相比第二调弯点2214与导管200远端的距离更 小,第一调弯点2213设置在相对于第二调弯点2214的另一侧。Wherein, thebending point 221 includes thefirst bending point 2213 and thesecond bending point 2214 arranged on thecatheter 200, thebending connecting piece 222 is fixedly connected with thefirst bending point 2213, and thebending connecting piece 222 is connected with thesecond bending point 2214. Thebending point 2214 is movably connected, the distance between thefirst bending point 2213 and the distal end of thecatheter 200 is smaller than the distance between thesecond bending point 2214 and the distal end of thecatheter 200, and thefirst bending point 2213 is arranged at a distance relative to the second The other side of thebending point 2214.

调弯连接件222包括调弯控制线2225,导管200上设置有用于 调弯控制线2225穿过的控制线腔2226,第二调弯点2214设置在控 制线腔2226的远端,调弯控制线2225穿过第二调弯点2214且绕导 管200旋转后固定连接于第一调弯点2213。在本实施例中,为了使 刀头组件300的朝向与导管200相同,因此第一调弯点2213和第二 调弯点2214在周向上相差180度设置。Thebend adjustment connector 222 includes a bendadjustment control wire 2225. Thecatheter 200 is provided with acontrol wire cavity 2226 for the bendadjustment control wire 2225 to pass through. The secondbend adjustment point 2214 is arranged at the far end of thecontrol wire cavity 2226. Thewire 2225 passes through thesecond bending point 2214 and is fixedly connected to thefirst bending point 2213 after rotating around thecatheter 200 . In this embodiment, in order to make the orientation of thecutter head assembly 300 the same as that of thecatheter 200, thefirst bending point 2213 and thesecond bending point 2214 are set with a difference of 180 degrees in the circumferential direction.

具体的,导管200内设置有控制线腔2226,控制线腔2226可以 设置在外管240的内部或者内管230的内部。其中,第一调弯点2213 为固定设置在编织层250上的固定点,通过固定点与调弯控制线 2225固定连接,第二调弯点2214为控制线腔2226远端的端点。Specifically, thecatheter 200 is provided with acontrol wire lumen 2226, and thecontrol wire lumen 2226 can be arranged inside theouter tube 240 or inside theinner tube 230. Wherein, thefirst bending point 2213 is a fixed point fixedly arranged on thebraided layer 250, and is fixedly connected with the bendingcontrol line 2225 through the fixed point, and thesecond bending point 2214 is the terminal point at the far end of thecontrol line cavity 2226.

在本实施例中,第一调弯点2213为焊接固定在编织层250上的 固定环,固定环将调弯控制线2225压紧固定在编织层250上,或者 调弯控制线2225与固定环焊接固定。通过将第一调弯点2213设置 为环形,从而满足调弯控制线2225的多相位连接,方便调弯控制线的角度调节和固定。In this embodiment, thefirst bending point 2213 is a fixing ring welded and fixed on thebraided layer 250, and the fixing ring presses and fixes the bendingcontrol line 2225 on thebraiding layer 250, or the bendingcontrol line 2225 and the fixing ring Welding fixed. By setting thefirst bending point 2213 as a ring, the multi-phase connection of the bendingcontrol line 2225 is satisfied, and the angle adjustment and fixing of the bending control line are convenient.

调弯控制线2225的一端连接于收线器142,调弯控制线2225 的另一端首先穿出控制线腔2226,然后顺着内管230与编织层250 之间的间隙螺旋旋转180度后,固定在第一调弯点2213上。其中, 调弯控制线2225的旋转角度还可以为170度或者190度,只要保证 第二调弯点2214相对设置在第一调弯点2213的对侧,即可保证在 调弯后,刀头组件300的朝向与导管200大致相同。One end of the bendingcontrol line 2225 is connected to the wire take-updevice 142, and the other end of the bendingcontrol line 2225 first passes through thecontrol line cavity 2226, and then spirally rotates 180 degrees along the gap between theinner tube 230 and thebraid 250, Fixed on thefirst bending point 2213. Wherein, the rotation angle of the bendingcontrol line 2225 can also be 170 degrees or 190 degrees, as long as thesecond bending point 2214 is relatively set on the opposite side of thefirst bending point 2213, it can be ensured that after the bending, thecutter head Assembly 300 is generally oriented in the same direction ascatheter 200 .

进一步地,调弯控制线2225伸出第二调弯点2214并固定在第 一调弯点2213之间的螺旋部分的轴向长度设置为外管240外径尺寸 的1倍至3倍。若第一调弯点2213与第二调弯点2214之间的轴向 长度过长,则会导致调弯效果不佳。若第一调弯点2213与第二调弯点2214之间的轴向长度过短,则会导致调弯所需应力过大,不利于 操作。因此,在本实施例中,调弯控制线2225伸出第二调弯点2214 并固定在第一调弯点2213之间的螺旋部分的轴向长度设置为外管 240外径尺寸的2倍。Further, the axial length of the bendingcontrol line 2225 protruding from thesecond bending point 2214 and fixed between thefirst bending point 2213 is set to 1 to 3 times the outer diameter of theouter tube 240. If the axial length between thefirst bending point 2213 and thesecond bending point 2214 is too long, the bending effect will be poor. If the axial length between thefirst bending point 2213 and thesecond bending point 2214 is too short, the stress required for bending will be too large, which is not conducive to the operation. Therefore, in this embodiment, the axial length of the helical part of the bendingcontrol line 2225 protruding from thesecond bending point 2214 and fixed between thefirst bending point 2213 is set to twice the outer diameter of theouter tube 240 .

进一步地,本实施例通过调节收线器142,控制调弯控制线2225 在控制线腔2226或者内管230中移动,由于调弯控制线2225在导 管200的远端沿着内管230螺旋旋转180度,因此控制调弯控制线 2225收缩时,调弯控制线2225对导管200远端既有轴向作用力、也 有径向作用力,从而能控制刀头组件300轴向及径向位移,故而使 刀头组件300实现S形调弯。由于调弯控制线2225旋转180度,因 此能够使刀头组件300与导管200轴向保持相同方向,降低刀头组 件300擦伤血管壁的风险。而刀头组件300调弯前与调弯后切除血 管内斑块,能使血管获得更大的管腔。Further, the present embodiment controls the bendingcontrol line 2225 to move in thecontrol line cavity 2226 or theinner tube 230 by adjusting the wire take-updevice 142, since the bendingcontrol line 2225 spirally rotates 180 degrees along theinner tube 230 at the distal end of thecatheter 200 Therefore, when controlling the contraction of the bendingcontrol line 2225, the bendingcontrol line 2225 has both axial force and radial force on the distal end of thecatheter 200, thereby controlling the axial and radial displacement of thecutter head assembly 300, so Make thecutter head assembly 300 realize S-shaped bending. Because the bendingcontrol line 2225 rotates 180 degrees, thecutter head assembly 300 and thecatheter 200 can be axially kept in the same direction, reducing the risk of thecutter head assembly 300 scratching the blood vessel wall. Andcutter head assembly 300 removes intravascular plaque before and after adjusting bending, can make blood vessel obtain bigger lumen.

如图8至图10所示,本实施例的控制组件包括设置在手柄本体 上的控制座以及活动连接于控制座的收线器,收线器包括用于自锁 定的锁定件1421。As shown in Figures 8 to 10, the control assembly of this embodiment includes a control seat arranged on the handle body and a wire retractor movably connected to the control seat, and the wire retractor includes a lockingmember 1421 for self-locking.

手柄本体100上设置有控制槽150,控制组件140设置在控制槽 150内,控制槽150的一端设置有顶杆151,控制座141朝向顶杆151 的一端设置有顶槽1411,控制座141的另一端转动连接于控制槽150 的另一端。从而控制座141通过顶槽1411与顶杆151的配合轴向固定在控制槽150内,且控制座141能够通过顶槽1411与顶杆151的 配合,转动连接于手柄本体100。Thehandle body 100 is provided with acontrol groove 150, and thecontrol assembly 140 is arranged in thecontrol groove 150. One end of thecontrol groove 150 is provided with apush rod 151, and the end of thecontrol seat 141 facing thepush rod 151 is provided with atop groove 1411. The other end is rotatably connected to the other end of thecontrol groove 150 . Therefore, thecontrol seat 141 is axially fixed in thecontrol groove 150 through the cooperation of thetop groove 1411 and theejector rod 151 , and thecontrol seat 141 can be rotatably connected to thehandle body 100 through the cooperation of thetop groove 1411 and theejector rod 151 .

收线器142设置在控制座141内,收线器142上设置有用于夹 持调弯控制线2225的夹持部143。其中,锁定件1421为设置在控制 座141的内壁的内螺纹以及设置在收线器142的外壁上设置的外螺 纹,收线器142与控制座141通过螺纹连接,且控制座上的内螺纹 与收线器上的外螺纹为自锁螺纹配合。医生在松开收线器以后,收 线器因内螺纹与外螺纹相对自锁而不会与控制座相对移动,从而实 现收线器的自锁定。The wire take-up 142 is arranged in thecontrol seat 141, and the wire take-up 142 is provided with a clampingportion 143 for clamping the bendingcontrol line 2225. Wherein, the lockingmember 1421 is an internal thread provided on the inner wall of thecontrol seat 141 and an external thread provided on the outer wall of the wire take-updevice 142. Cooperate with the external thread on the wire take-up as a self-locking thread. After the doctor loosens the wire take-up, the wire take-up will not move relative to the control seat due to the relative self-locking of the internal thread and the external thread, thereby realizing the self-locking of the wire take-up.

控制座141内设置有滑杆144,滑杆144沿控制座141的轴向方 向设置,收线器142滑动连接于滑杆144,滑杆144与收线器142 之间设置有转动限位面1441,从而收线器142能够沿滑杆144的长 度方向平移,不能与滑杆144相对转动,即形成丝杆联动关系。Aslide bar 144 is arranged inside thecontrol seat 141, and theslide bar 144 is arranged along the axial direction of thecontrol seat 141. The wire take-up 142 is slidably connected to theslide bar 144, and a rotation limiting surface is arranged between theslide bar 144 and the wire take-up 142. 1441, so that the wire take-updevice 142 can translate along the length direction of theslide bar 144, and cannot rotate relative to theslide bar 144, that is, a screw linkage relationship is formed.

因此,当转动控制座141时,收线器142在螺纹配合的联动下 能够在滑杆144上滑移并相对控制座141移动,并且收线器142夹 持调弯控制线2225,调弯控制线2225跟随收线器142相对手柄本体 100移动,从而控制导管200进行弯曲动作。Therefore, when thecontrol seat 141 is rotated, the wire take-updevice 142 can slide on theslide bar 144 and move relative to thecontrol seat 141 under the linkage of the screw fit, and the wire take-updevice 142 clamps the bendingadjustment control line 2225, and the bendingadjustment control line 2225 Thewire 2225 follows thewire retractor 142 and moves relative to thehandle body 100 , thereby controlling thecatheter 200 to perform a bending action.

在本申请的进一步实施例中,如图11至图15示,驱动传动组 件412包括与扭矩轴210连接的第一传动件4121、与动力源411连 接的第二传动件4122以及设置在驱动壳体430上的第三传动件 4123,第三传动件4123连接在第一传动件4121与第二传动件4122 之间。In a further embodiment of the present application, as shown in FIGS. 11 to 15 , thedrive transmission assembly 412 includes afirst transmission member 4121 connected to thetorque shaft 210 , asecond transmission member 4122 connected to thepower source 411 , and a drive housing Thethird transmission member 4123 on thebody 430 is connected between thefirst transmission member 4121 and thesecond transmission member 4122 .

如图13所示,调节传动组件421包括与第二传动件4122同轴 设置的第四传动件4211以及与第三传动件4123同轴设置的第五传 动件4212,换挡组件422包括连接于动力源411的输出轴的主动轮 轴4221以及连接于主动轮轴4221的拨杆4222,第三传动件4123 与第五传动件4212均设置在主动轮轴4221上,主动轮轴4221与输 出轴滑动连接且同步转动;拨杆4222用于驱动第二传动件4122与 第三传动件4123连接或驱动第四传动件4211与第五传动件4212连 接。As shown in FIG. 13 , theadjustment transmission assembly 421 includes afourth transmission member 4211 coaxially arranged with thesecond transmission member 4122 and afifth transmission member 4212 coaxially arranged with thethird transmission member 4123 . Thedriving wheel shaft 4221 of the output shaft of thepower source 411 and thelever 4222 connected to thedriving wheel shaft 4221, thethird transmission member 4123 and thefifth transmission member 4212 are all arranged on thedriving wheel shaft 4221, and thedriving wheel shaft 4221 is slidingly connected and synchronized with the output shaft Rotation; thelever 4222 is used to drive thesecond transmission member 4122 to connect with thethird transmission member 4123 or to drive thefourth transmission member 4211 to connect with thefifth transmission member 4212 .

具体的,本实施例的传动件均为齿轮。其中,动力源411为电 机,第一传动件4121为连接于扭矩轴210的输出齿轮,第二传动件4122为连接于电机的主动齿轮,第三传动件4123为设置在驱动壳体 430上的传动齿轮。主动齿轮、传动齿轮和输出齿轮依次啮合连接。Specifically, the transmission elements in this embodiment are all gears. Wherein, thepower source 411 is a motor, thefirst transmission member 4121 is an output gear connected to thetorque shaft 210, thesecond transmission member 4122 is a driving gear connected to the motor, and thethird transmission member 4123 is an output gear arranged on thedrive housing 430. Transmission gear. The driving gear, the transmission gear and the output gear are sequentially meshed and connected.

另外,本实施例的调节传动组件421设置了第二组齿轮组件, 即第四传动件4211和第五传动件4212。其中,第四传动件4211为 与第二传动件4122同轴设置的大调速齿轮,第五传动件4212为与 第三传动件4123同轴设置的小调速齿轮。In addition, theadjustment transmission assembly 421 of this embodiment is provided with a second set of gear assemblies, that is, thefourth transmission member 4211 and thefifth transmission member 4212 . Wherein, thefourth transmission member 4211 is a large speed-regulating gear coaxially arranged with thesecond transmission member 4122, and thefifth transmission member 4212 is a small speed-regulating gear coaxially arranged with thethird transmission member 4123.

具体的,第四传动件4211为与第二传动件4122均设置在主动 轮轴4221上,电机直接驱动输出轴转动,主动轮轴4221滑动连接 于电机的输出轴且与电机的输出轴同步转动。第五传动件4212通过 从动轮轴4224连接于第三传动件4123,第五传动件4212与第三传 动件4123通过从动轮轴4224同轴转动。Specifically, thefourth transmission member 4211 and thesecond transmission member 4122 are all arranged on thedriving wheel shaft 4221, the motor directly drives the output shaft to rotate, and thedriving wheel shaft 4221 is slidably connected to the output shaft of the motor and rotates synchronously with the output shaft of the motor. Thefifth transmission member 4212 is connected to thethird transmission member 4123 through the drivenwheel shaft 4224, and thefifth transmission member 4212 and thethird transmission member 4123 rotate coaxially through the drivenwheel shaft 4224.

其中,主动轮轴4221与拨杆4222固定连接,拨杆4222的末端 设置有调速键4223,调速键4223滑动连接于手柄本体100。如图15 所示,驱动壳体430上设置有低速限位槽4113以及高速限位槽4113, 当旋切刀头320处于低速挡切割时,调速键4223位于低速限位槽4113,且第二传动件4122、第三传动件4123和第一传动件4121依 次啮合连接。Wherein, thedriving wheel shaft 4221 is fixedly connected with the drivinglever 4222, and the end of the drivinglever 4222 is provided with a speed regulating key 4223, and the speed regulating key 4223 is slidably connected to thehandle body 100. As shown in Figure 15, thedrive housing 430 is provided with a low-speed limiting groove 4113 and a high-speed limiting groove 4113. When therotary cutter head 320 is in low-speed gear cutting, thespeed control key 4223 is located in the low-speed limiting groove 4113, and the first Thesecond transmission member 4122, thethird transmission member 4123 and thefirst transmission member 4121 are sequentially meshed and connected.

本实施例的驱动模块410具体工作原理如下:当动力源411工 作,并通过动力源411带动第二传动件4122转动时,即电机开始运 转并带动第二传动件4122运转。第二传动件4122通过与第三传动 件4123啮合将转速传递给第三传动件4123,第三传动件4123通过与第一传动件4121啮合将速度传递给第一传动件4121,第一传动件4121再将速度传递给扭矩轴210,扭矩轴210带动旋切刀头320转 动,完成低速挡切割。低速挡切割时,扭矩轴的转速较底,而扭矩 较大。The specific working principle of thedriving module 410 in this embodiment is as follows: when thepower source 411 works and drives thesecond transmission member 4122 to rotate through thepower source 411, the motor starts to run and drives thesecond transmission member 4122 to rotate. Thesecond transmission member 4122 transmits the rotational speed to thethird transmission member 4123 by meshing with thethird transmission member 4123, and thethird transmission member 4123 transmits the speed to thefirst transmission member 4121 by meshing with thefirst transmission member 4121, and the first transmission member The 4121 then transmits the speed to thetorque shaft 210, and thetorque shaft 210 drives therotary cutter head 320 to rotate to complete the low-speed cutting. When cutting in low gear, the rotational speed of the torque shaft is low and the torque is high.

当进行高低档位切换时,拨动调速键4223,以使调速键4223 移动至高速限位槽4113,拨杆4222在调速键4223的带动下移动, 调速杆的移动带动主动轮轴4221移动并使第二传动件4122与第三 传动件4123脱离啮合。由于第四传动件4211与第二传动件4122均 设置在主动轮轴4221上,因此第四传动件4211也跟随主动轮轴4221 一起移动,并与第五传动件4212啮合,完成齿轮啮合关系的切换。When switching between high and low gears, toggle the speed regulating key 4223 so that the speed regulating key 4223 moves to the high-speed limit groove 4113, theshift lever 4222 moves under the drive of the speed regulating key 4223, and the movement of the speed regulating lever drives thedriving wheel shaft 4221 moves and disengages thesecond transmission member 4122 from thethird transmission member 4123 . Since thefourth transmission member 4211 and thesecond transmission member 4122 are both arranged on thedriving wheel shaft 4221, thefourth transmission member 4211 also moves with thedriving wheel shaft 4221 and meshes with thefifth transmission member 4212 to complete the switching of the gear meshing relationship.

在本实施例中,第四传动件4211的齿数大于第二传动件4122 的齿数,第五传动件4212的齿数小于第三传动件4123的齿数。因 此,第四传动件4211与第五传动件4212相啮合的传动状态,与第 二传动件4122与从动齿轮相啮合传动状态相比,第五传动件4212 的转速更高。In this embodiment, the number of teeth of thefourth transmission member 4211 is greater than the number of teeth of thesecond transmission member 4122 , and the number of teeth of thefifth transmission member 4212 is smaller than that of thethird transmission member 4123 . Therefore, in the transmission state where thefourth transmission member 4211 is engaged with thefifth transmission member 4212, the rotating speed of thefifth transmission member 4212 is higher than that in the transmission state where thesecond transmission member 4122 is engaged with the driven gear.

由于第五传动件4212的转速更高,且第五传动件4212将更高 的转速通过从动轮轴4224传递至第三传动件4123,第三传动件4123 与第一传动件4121相啮合,从而第一传动件4121的转速更高,完 成旋切刀头320的高速挡切割。当高速挡切割时,扭矩轴的转速更高,而扭矩较小。Since the rotation speed of thefifth transmission member 4212 is higher, and thefifth transmission member 4212 transmits the higher rotation speed to thethird transmission member 4123 through the drivenwheel shaft 4224, thethird transmission member 4123 meshes with thefirst transmission member 4121, thereby The rotation speed of thefirst transmission member 4121 is higher, and the high-speed cutting of therotary cutter head 320 is completed. When cutting in high gear, the rotational speed of the torque shaft is higher and the torque is less.

基于本实施例的上述方案,通过在调节模块420中设置额外的 齿轮组,即第四传动件4211和第五传动件4212,并通过换挡组件 422调节各齿轮组件之间的啮合关系,从而实现了旋切刀头320转速 的高速、低速挡位可调,进而实现了旋切刀头320扭矩的高扭矩、低扭矩可调。医生可以根据斑块的质地灵活选用切割速度,避免刀 头卡停的现象,提高了使用的稳定性,避免血管损伤。Based on the above solution of this embodiment, by setting an additional gear set in theadjustment module 420, that is, thefourth transmission member 4211 and thefifth transmission member 4212, and adjusting the meshing relationship between each gear assembly through theshift assembly 422, thereby The high-speed and low-speed gears of the rotational speed of therotary cutter head 320 are realized, and the high torque and low torque of therotary cutter head 320 are adjusted. The doctor can flexibly choose the cutting speed according to the texture of the plaque, avoiding the phenomenon of the cutter head being stuck, improving the stability of use, and avoiding blood vessel damage.

在常规切割时,医生可以选用高速挡,从而实现斑块切除效率 的最大化。当遇到斑块堵塞或者斑块难以切除的情况时,尤其是因 导管200调弯而导致斑块或血栓卡在导管200的弯曲部位时,医生 可以选用低速挡以提高扭矩轴210的扭矩,避免斑块或血栓难以通过导管200的弯曲部位,保证导管200不会发生堵塞,并避免旋切 刀头320卡停的情况发生,保证手术的顺利进行。During routine cutting, doctors can choose high-speed gear to maximize the efficiency of plaque removal. When the plaque is blocked or difficult to remove, especially when the plaque or thrombus is stuck in the bending part of thecatheter 200 due to the bending of thecatheter 200, the doctor can choose a low gear to increase the torque of thetorque shaft 210, Prevent plaque or thrombus from passing through the bending part of thecatheter 200, ensure that thecatheter 200 will not be blocked, and prevent therotary cutter head 320 from being stuck, so as to ensure the smooth progress of the operation.

在其他实施例中,还可以设置额外的齿轮组件,以增加可调挡 位的数量,例如实现三挡可调,从而为医生提供更多的选择。并且, 上述调速方案仅为示例,任何可以实现扭矩轴扭矩调整的机械结构 均在本申请的保护范围内。In other embodiments, an additional gear assembly can also be provided to increase the number of adjustable gears, for example, to realize three gears adjustable, thereby providing doctors with more choices. Moreover, the above-mentioned speed regulation scheme is only an example, and any mechanical structure that can realize the torque adjustment of the torque shaft is within the protection scope of the present application.

在其他实施例中,当采用外接电源的驱动方式时,还可以通过 动态调整外接电源的输出功率的方式,以动态的控制扭矩轴的输出 扭矩,从而保证使用的稳定性。In other embodiments, when the drive mode of the external power supply is adopted, the output torque of the torque shaft can be dynamically controlled by dynamically adjusting the output power of the external power supply, so as to ensure the stability of use.

进一步地,如图16至图21所示,手柄本体100上设置有用于 装配驱动机构400的装配部110,驱动机构400包括用于容纳驱动模 块410与调节模块420的驱动壳体430,驱动壳体430与装配部110 之间设置有拆卸连接部130。其中,驱动传动组件412与手柄本体 100之间设置有密封结构4124。Further, as shown in FIG. 16 to FIG. 21 , thehandle body 100 is provided with anassembly part 110 for assembling thedrive mechanism 400. Thedrive mechanism 400 includes adrive housing 430 for accommodating thedrive module 410 and theadjustment module 420. The drive housing Adetachable connection part 130 is provided between thebody 430 and theassembly part 110 . Wherein, a sealingstructure 4124 is provided between thedrive transmission assembly 412 and thehandle body 100.

本实施例通过驱动机构400可拆卸式设计,首先,为前期灭菌 提供了便利,能够对驱动机构400中灭菌难度较大的电源组件413 进行单独灭菌,然后通过拆卸连接部130进行快速组装,降低了切 除装置整体的灭菌难度以及生产装配速度,提高了生产效率。其次,在切除装置使用以后,拆卸得到的零部件可以根据医用规范允许范 围内二次使用,提高了零部件的利用率,降低了使用成本。另外, 在切除装置在使用完毕以后,可以快速的将各个零部件进行拆卸, 根据医用规范灵活的进行分类回收与报废,降低了回收难度及成本。In this embodiment, through the detachable design of thedriving mechanism 400, firstly, it provides convenience for pre-sterilization, and can separately sterilize thepower supply component 413 in thedriving mechanism 400, which is difficult to sterilize, and then quickly and quickly by disassembling the connectingpart 130. Assembling reduces the difficulty of sterilizing the resection device as a whole and the speed of production and assembly, and improves production efficiency. Secondly, after the resection device is used, the disassembled parts can be reused within the scope allowed by the medical specification, which improves the utilization rate of the parts and reduces the use cost. In addition, after the cutting device is used, each component can be disassembled quickly, and can be sorted, recycled and scrapped flexibly according to medical specifications, which reduces the difficulty and cost of recycling.

拆卸连接部130包括设置在装配部110与驱动壳体430之间的 钩挂组件131以及卡合组件132,钩挂组件131与卡合组件132分别 设置在装配部110的两端,驱动壳体430与装配部110的底部之间 设置有弹出件133。Thedismounting connection part 130 includes ahook assembly 131 and asnap assembly 132 arranged between theassembly part 110 and thedrive housing 430, thehook assembly 131 and thesnap assembly 132 are respectively arranged at both ends of theassembly part 110, and the drive housing Anejector 133 is disposed between the bottom of theassembly part 110 and theassembly part 110 .

具体的,装配部110为设置在手柄本体100上用于安装驱动机 构400的装配槽,驱动机构400设置在装配部110内,且驱动机构 400可拆卸连接于手柄本体100。驱动机构400具体通过驱动壳体430 可拆卸连接于装配部110的方式,实现驱动机构400整体的可拆卸更换,驱动模块410和调节模块420均安装在驱动壳体430内。Specifically, theassembly part 110 is an assembly groove provided on thehandle body 100 for installing thedrive mechanism 400, thedrive mechanism 400 is arranged in theassembly part 110, and thedrive mechanism 400 is detachably connected to thehandle body 100. Thedriving mechanism 400 is detachably connected to theassembly part 110 through the drivinghousing 430 , so that theentire driving mechanism 400 can be detachably replaced. Thedriving module 410 and theadjusting module 420 are installed in the drivinghousing 430 .

本实施例通过将驱动机构400整体设置为可拆卸结构,从而驱 动机构400在符合规范的情况下,可循环使用。并且驱动机构400 和手柄本体100可以根据医用使用规范进行分类回收。In this embodiment, thedrive mechanism 400 is configured as a detachable structure as a whole, so that thedrive mechanism 400 can be recycled under the condition of compliance. Moreover, thedriving mechanism 400 and thehandle body 100 can be sorted and recycled according to medical use regulations.

进一步地,如图18所示,卡合组件132设置在手柄本体100的 近端,钩挂组件131设置在手柄本体100的远端。卡合组件132包 括滑动连接于驱动壳体430的锁紧销1321以及设置在锁紧销1321 上的锁紧键1322,锁紧键1322与锁紧销1321一体成型,或者锁紧 销1321与锁紧键1322分体成型后粘接固定。Further, as shown in FIG. 18 , the engagingcomponent 132 is disposed at the proximal end of thehandle body 100, and the hookingcomponent 131 is disposed at the distal end of thehandle body 100. The engagingassembly 132 includes alocking pin 1321 slidably connected to thedrive housing 430 and a locking key 1322 provided on thelocking pin 1321. The locking key 1322 is integrally formed with thelocking pin 1321, or thelocking pin 1321 is integrated with thelocking pin 1321. The tight key 1322 is bonded and fixed after separate molding.

装配部110的内壁上设置有用于与锁紧销1321卡合连接的锁紧 孔1323,用户可以通过拨动锁紧键1322带动锁紧销1321移动,并 控制锁紧销1321插入锁紧孔1323中以实现锁紧销1321与锁紧孔 1323的固定,或者控制锁紧销1321脱离与锁紧孔1323的插接以实 现锁紧销1321与锁紧孔1323的分离。当锁紧销1321插入锁紧孔 1323中时,驱动机构400与装配部110处于固定状态,当锁紧销1321 脱离锁紧孔1323时,驱动机构400与装配部110处于分离状态。The inner wall of theassembly part 110 is provided with alocking hole 1323 for engagement with thelocking pin 1321, the user can drive thelocking pin 1321 to move by turning the locking key 1322, and control thelocking pin 1321 to insert into thelocking hole 1323 To realize the fixing of thelocking pin 1321 and thelocking hole 1323 , or control thelocking pin 1321 to disengage from thelocking hole 1323 so as to realize the separation of thelocking pin 1321 and thelocking hole 1323 . When thelocking pin 1321 is inserted into thelocking hole 1323, thedriving mechanism 400 and theassembly part 110 are in a fixed state, and when thelocking pin 1321 is disengaged from thelocking hole 1323, thedriving mechanism 400 and theassembly part 110 are in a separated state.

其中,锁紧键1322的底部设置有锁紧卡件1324,驱动壳体430 表面上设置有锁定固定槽1325和分离固定槽1326,分离固定槽1326 相对锁定固定槽1325远离锁紧孔1323设置,锁定固定槽1325与分 离固定槽1326分别用于与锁紧卡件1324卡合固定。当锁紧键1322带动锁紧销1321朝向靠近锁紧孔1323的方向移动,并使锁紧卡件 1324卡合连接于锁定固定槽1325内时,锁紧销1321插入锁紧孔1323 中,并使得驱动机构400与装配部110卡接固定。当锁紧键1322带 动锁紧销1321朝向远离锁紧孔1323的方向移动,并使锁紧卡件1324卡合连接于分离固定槽1326内时,锁紧销1321与锁紧孔1323分离, 并使得驱动机构400与装配部110分离。Wherein, the bottom of the locking key 1322 is provided with a locking clip 1324, and the surface of the drivinghousing 430 is provided with a locking and fixinggroove 1325 and a separation and fixinggroove 1326, and the separation and fixinggroove 1326 is set away from thelocking hole 1323 relative to the locking and fixinggroove 1325, Thelocking fixing groove 1325 and theseparating fixing groove 1326 are respectively used to engage and fix with the locking clip 1324 . When the locking key 1322 drives thelocking pin 1321 to move toward thelocking hole 1323, and the locking clip 1324 is snapped into thelocking fixing groove 1325, thelocking pin 1321 is inserted into thelocking hole 1323, and Thedriving mechanism 400 is clamped and fixed with theassembly part 110 . When the locking key 1322 drives thelocking pin 1321 to move away from thelocking hole 1323, and makes the locking clip 1324 snap-connected in theseparation fixing groove 1326, thelocking pin 1321 is separated from thelocking hole 1323, and Thedriving mechanism 400 is separated from thefitting part 110 .

其中,驱动壳体430与装配部110的底部之间设置有用于将驱 动机构400弹出的弹出件133,弹出件133优选为弹簧。即当锁紧销 1321与锁紧孔1323脱离后,弹出件133自动将驱动机构400从装配 部110内弹起,从而方便用户将驱动机构400取出。Wherein, an ejectingmember 133 for ejecting thedriving mechanism 400 is provided between the drivinghousing 430 and the bottom of theassembly portion 110, and the ejectingmember 133 is preferably a spring. That is, when thelocking pin 1321 is disengaged from thelocking hole 1323, the pop-upmember 133 automatically pops up thedriving mechanism 400 from theassembly part 110, thereby facilitating the user to take out thedriving mechanism 400.

钩挂组件131设置在驱动壳体430相对锁紧销1321的另一端, 钩挂组件131包括设置在驱动壳体430远端端面上的挂钩1311以及 设置在装配部110的内表面且与挂钩1311钩挂连接的钩挂槽1312。The hookingassembly 131 is arranged on the other end of the drivinghousing 430 opposite to thelocking pin 1321. The hookingassembly 131 includes ahook 1311 arranged on the distal end surface of the drivinghousing 430 and an inner surface of theassembly part 110 connected to thehook 1311.Hook slot 1312 for hook connection.

在将驱动机构400固定在装配部110内时,首先将挂钩1311与 钩挂槽1312钩挂连接,从而实现驱动机构400的远端与装配部110 固定,然后将卡合组件132的锁紧键1322与锁紧孔1323插接,实 现驱动机构400的远端与装配部110固定。When fixing thedriving mechanism 400 in theassembly part 110, thehook 1311 is hooked and connected with thehook groove 1312 at first, so that the far end of thedriving mechanism 400 is fixed to theassembly part 110, and then the locking key of the engagingassembly 132 1322 is inserted into thelocking hole 1323 to realize the fixing of the distal end of thedriving mechanism 400 and theassembly part 110 .

在将驱动机构400从装配部110内取出时,首先将卡合组件132 的锁紧键1322与锁紧孔1323分离,实现驱动机构400的近端与装 配部110分离,然后将挂钩1311从钩挂槽1312中取出,实现驱动 机构400的远端与装配部110分离。When thedriving mechanism 400 is taken out from theassembly part 110, first the lockingkey 1322 of the engagingassembly 132 is separated from thelocking hole 1323, so that the proximal end of thedriving mechanism 400 is separated from theassembly part 110, and then thehook 1311 is removed from the hook. Take it out from the hangingslot 1312 to realize the separation of the distal end of thedriving mechanism 400 from theassembly part 110 .

在本实施例中,手柄本体100上还设置有可拆卸连接于手柄本 体100且设置在驱动机构400外侧的手柄上盖120。In this embodiment, thehandle body 100 is further provided with a handleupper cover 120 detachably connected to thehandle body 100 and arranged outside thedriving mechanism 400 .

其中,结合图19所示,手柄上盖120的远端与手柄本体100的 钩挂槽1312通过卡合结构固定,手柄上盖120的远端设置有上盖插 销123,其中,上盖插销123插接连接于钩挂槽1312。手柄上盖120 的近端设置有插板121,插板121设置在驱动壳体430与钩挂槽1312 之间,插板121上设置有与锁紧销1321配合的插孔122。当手柄上 盖120的上盖插销123与钩挂槽1312卡合固定后,将手柄本体100 贴合驱动壳体430设置,然后操作锁紧键1322朝向锁紧孔1323的 方向移动。锁紧键1322首先穿过插板121上的插孔122,然后插入 缩进孔中,实现同时将手柄上盖120和驱动机构400固定在手柄本 体100上的目的。Wherein, as shown in FIG. 19 , the far end of the handleupper cover 120 and the hookinggroove 1312 of thehandle body 100 are fixed through an engaging structure, and the far end of the handleupper cover 120 is provided with anupper cover latch 123 , wherein theupper cover latch 123 The socket is connected to the hookinggroove 1312 . The proximal end of the handleupper cover 120 is provided with an insertingplate 121 , and the insertingplate 121 is disposed between the drivinghousing 430 and the hookinggroove 1312 , and the insertingplate 121 is provided with aninsertion hole 122 matched with thelocking pin 1321 . After theupper cover latch 123 of the handleupper cover 120 is engaged and fixed with thehook groove 1312, thehandle body 100 is attached to thedrive housing 430 to set, and then the locking key 1322 is operated to move towards the lockinghole 1323. The locking key 1322 first passes through theinsertion hole 122 on theinsert plate 121, and then is inserted into the indentation hole, so as to realize the purpose of fixing the handleupper cover 120 and thedriving mechanism 400 on thehandle body 100 at the same time.

本申请通过在驱动机构400上设置手柄上盖120的方式,保护 了驱动机构400,防止驱动机构400因外界碰撞等因素损坏。另外, 在将手柄本体100与驱动机构400拆卸后,可以根据相关理疗规定 对相关拆分件进行分类回收与报废。The present application protects thedrive mechanism 400 by setting the handleupper cover 120 on thedrive mechanism 400, preventing thedrive mechanism 400 from being damaged due to factors such as external collisions. In addition, after thehandle body 100 and thedriving mechanism 400 are disassembled, the relevant disassembled parts can be sorted, recycled and scrapped according to relevant physiotherapy regulations.

在本实施例中,调弯组件220设置在手柄本体100的远端,从 而方便医生在术中的操作,导管200从手柄本体100的远端穿入手 柄本体100,导管200与手柄本体100通过缓冲套管270连接,导管 200的近端固定于设置在手柄本体100中部的排出腔道500。In this embodiment, the bendingassembly 220 is arranged at the distal end of thehandle body 100, so as to facilitate the operation of the doctor during the operation. Thebuffer sleeve 270 is connected, and the proximal end of thecatheter 200 is fixed to thedischarge lumen 500 provided in the middle of thehandle body 100 .

排出腔道500设置在手柄本体100的中部,扭矩轴210贯穿手 柄本体100,扭矩轴210首先贯穿导管200并从导管200中穿入主腔 体510,从导管200中被送出的斑块或血栓掉落至主腔体510中, 并从排废管中排出,排废管相对主腔体510倾斜设置,便于斑块或 血栓排出。Thedischarge lumen 500 is arranged in the middle of thehandle body 100, thetorque shaft 210 runs through thehandle body 100, thetorque shaft 210 first passes through thecatheter 200 and penetrates themain cavity 510 from thecatheter 200, the plaque or thrombus sent out from thecatheter 200 It falls into themain cavity 510 and is discharged from the waste discharge tube. The waste discharge tube is inclined relative to themain cavity 510 to facilitate the discharge of plaque or thrombus.

扭矩轴210从排出腔道500中穿出,并通过一轴承连接于手柄 本体100,扭矩轴210的导丝腔211连通于手柄本体100的外部空间, 从而导丝通过导丝腔211贯穿扭矩轴210并从扭矩轴210的远端穿 出,从而为导管200建立路入血管的通路。Thetorque shaft 210 passes through thedischarge cavity 500 and is connected to thehandle body 100 through a bearing. Theguide wire cavity 211 of thetorque shaft 210 communicates with the external space of thehandle body 100, so that the guide wire passes through theguide wire cavity 211 and runs through thetorque shaft 210 and pass through the distal end of thetorque shaft 210, thereby establishing a passage for thecatheter 200 to enter the blood vessel.

其中,驱动机构400设置在导管200以及排出腔道500的上方, 驱动传动组件412设置在排出腔道500的近端并与扭矩轴210连接。 从而斑块或者血栓通过设置在驱动传动组件412远端的排出腔道500排出手柄本体100,斑块或者血栓不会接触到驱动传动组件412。Wherein, thedriving mechanism 400 is disposed above thecatheter 200 and thedischarge lumen 500 , and thedrive transmission assembly 412 is disposed at the proximal end of thedischarge lumen 500 and connected with thetorque shaft 210 . Therefore, the plaque or thrombus is discharged from thehandle body 100 through thedischarge channel 500 provided at the distal end of thedrive transmission assembly 412 , and the plaque or thrombus will not contact thedrive transmission assembly 412 .

并且驱动传动组件412与排出腔道500之间采用密封设计,即 第一传动件4121与手柄本体100之间设置有密封结构4124,密封结 构4124包括固定在手柄本体100上的滚动轴承以及用于密封滚动轴 承的密封圈,扭矩轴210穿过滚动轴承,并与滚动轴承固定并密封 连接。具体的,可通过焊料填满扭矩轴210与滚动轴承之间的间隙, 并焊接固定,然后通过密封圈对滚动轴承与手柄本体100进行密封。 从而,本实施例的驱动机构400在使用后能够保持洁净,从而便于 回收,并且能够二次利用。In addition, a sealing design is adopted between the drivingtransmission assembly 412 and thedischarge chamber 500, that is, a sealingstructure 4124 is provided between thefirst transmission member 4121 and thehandle body 100, and thesealing structure 4124 includes a rolling bearing fixed on thehandle body 100 and a sealing structure for sealing. The sealing ring of the rolling bearing, thetorque shaft 210 passes through the rolling bearing, and is fixedly and sealingly connected with the rolling bearing. Specifically, the gap between thetorque shaft 210 and the rolling bearing can be filled with solder, and fixed by welding, and then the rolling bearing and thehandle body 100 can be sealed by a sealing ring. Therefore, thedriving mechanism 400 of the present embodiment can be kept clean after use, so that it is easy to recycle and can be reused.

综上,本申请通过调弯组件220调节远端导管200的弯曲半径, 使导管200朝向预定方向偏移,并控制刀头组件300的朝向,降低 刮伤血管及血管穿孔的风险,能够通过多次切除得到理想的血管管 径。同时,设置用于调节扭矩轴210扭矩的调节模块420,以使斑块切除装置在切除较硬的斑块时,可以通过调整扭矩轴210的扭矩使 斑块切除更加顺畅。另一方面,通过设置可拆卸连接于手柄本体100 的驱动机构400,以使驱动机构400可以循环使用,降低斑块切除装 置的使用成本。To sum up, the present application uses the bendingassembly 220 to adjust the bending radius of thedistal catheter 200, so that thecatheter 200 is shifted toward a predetermined direction, and the orientation of thecutter head assembly 300 is controlled to reduce the risk of scratching blood vessels and blood vessel perforation. The ideal vascular diameter was obtained by resection. At the same time, anadjustment module 420 for adjusting the torque of thetorque shaft 210 is provided, so that when the atherectomy device removes hard plaque, the torque of thetorque shaft 210 can be adjusted to make the plaque excision more smooth. On the other hand, by setting thedriving mechanism 400 detachably connected to thehandle body 100, thedriving mechanism 400 can be recycled, reducing the cost of using the atherectomy device.

实施例二Embodiment two

本发明的实施例二提出了一种切除装置,如图22所示,实施例 二与实施例一的相同之处不再赘述,实施例二与实施例一的不同之 处在于,调弯点221包括设置在导管200上的调弯固定件2211以及 设置在刀头组件300上的回位固定件2212,调弯连接件222用于连接调弯固定件2211和回位固定件2212,回位固定件2212设置在刀 头组件300的近端,调弯固定件2211设置在导管200相对于回位固 定件2212的另一侧。Embodiment 2 of the present invention proposes a resection device, as shown in FIG. 22 , and the similarities between Embodiment 2 and Embodiment 1 will not be repeated. The difference between Embodiment 2 and Embodiment 1 is that thebending point 221 includes a bendingadjustment fixing part 2211 arranged on thecatheter 200 and areturn fixing part 2212 arranged on thecutter head assembly 300. The bendingadjustment connecting part 222 is used to connect the bendingadjustment fixing part 2211 and thereturn fixing part 2212. The fixingpart 2212 is arranged at the proximal end of thecutter head assembly 300 , and the bendingadjustment fixing part 2211 is arranged on the other side of thecatheter 200 relative to thereturn fixing part 2212 .

调弯连接件222包括调弯连接线2221以及回位连接线2222,导 管200上设置有用于调弯连接线2221穿过的调弯线腔2223以及用 于回位连接线2222穿过的回位线腔2224。调弯连接线2221用于连 接控制组件140以及调弯固定件2211,回位连接线2222用于连接控制组件140以及回位固定件2212。Thebend adjustment connector 222 includes a bendadjustment connection line 2221 and areturn connection line 2222. Thecatheter 200 is provided with a bendadjustment line cavity 2223 for the bendadjustment connection line 2221 to pass through and a return position for thereturn connection line 2222 to pass through.Wire lumen 2224. The bendingadjustment connecting line 2221 is used to connect thecontrol assembly 140 and the bendingadjustment fixing part 2211, and thereturn connecting line 2222 is used to connect thecontrol assembly 140 and the returning fixingpart 2212.

回位固定件2212设置在刀头组件300的近端,调弯固定件2211 设置在导管200相对于回位固定件2212的另一侧。调弯固定件2211 设置在导管200相对于回位固定件2212的另一侧,优选调弯固定件 2211与回位固定件2212在周向上相差180度设置。Thereturn fixing part 2212 is arranged at the proximal end of thecutter head assembly 300 , and the bendingadjustment fixing part 2211 is arranged on the other side of thecatheter 200 relative to thereturn fixing part 2212 . The bendingadjustment fixing part 2211 is arranged on the other side of thecatheter 200 relative to thereturn fixing part 2212. Preferably, the bendingadjustment fixing part 2211 and thereturn fixing part 2212 are arranged with a difference of 180 degrees in the circumferential direction.

具体的,导管200内设置有调弯线腔2223以及回位线腔2224, 调弯线腔2223和回位线腔2224均设置在外管240中或者设置在外 管240与编织层250之间。调弯连接线2221的一端连接于调弯固定 件2211,然后贯穿调弯线腔2223后,另一端连接于控制组件140。 回位连接线2222的一端连接于调弯固定件2211,然后贯穿回位线腔 2224后,另一端连接于控制组件140。Specifically, thecatheter 200 is provided with anadjusting wire lumen 2223 and a returningwire lumen 2224, and the adjustingbending wire lumen 2223 and the returningwire lumen 2224 are all arranged in theouter tube 240 or between theouter tube 240 and thebraid 250. One end of the bending-adjusting connectingwire 2221 is connected to the bending-adjustingfixture 2211, and then passes through the bending-adjustingwire cavity 2223, and the other end is connected to thecontrol assembly 140. One end of thereturn connection line 2222 is connected to the bendingadjustment fixture 2211, and then passes through thereturn line cavity 2224, and the other end is connected to thecontrol assembly 140.

调弯连接线2221与回位连接线2222分别固定在收线器142上, 当医生转动控制座141时,收线器142在滑杆144上相对控制座141 滑移,从而同时牵拉调弯连接线2221和回位连接线2222,从而调整 导管200和刀头组件300的姿态。The bendingadjustment connecting line 2221 and thereturn connecting line 2222 are respectively fixed on the wire take-up 142. When the doctor rotates thecontrol seat 141, the wire take-up 142 slides on the slidingrod 144 relative to thecontrol seat 141, thereby pulling the bending adjustment at the same time. Theconnection line 2221 and thereturn connection line 2222 are used to adjust the postures of thecatheter 200 and thecutter head assembly 300 .

其中,回位固定件2212设置在保护套330上,回位固定件2212 为设置在保护套330上的固定板,回位连接线2222与固定板焊接固 定,或者回位固定件2212上设置有连接孔,回位连接线2222穿过 连接孔并打结固定。调弯固定件2211为设置在导管200的编织层250上的固定环,固定环将调弯连接线2221压紧固定在编织层250上, 或者调弯连接线2221与固定环焊接固定。Wherein, thereturn fixing part 2212 is arranged on theprotective cover 330, and thereturn fixing part 2212 is a fixed plate arranged on theprotective cover 330, and thereturn connecting line 2222 is welded and fixed with the fixing plate, or thereturn fixing part 2212 is provided with Connecting hole, thereturn connecting wire 2222 passes through the connecting hole and is fixed by knotting. The bend-adjustingfixture 2211 is a fixing ring arranged on thebraid 250 of thecatheter 200, and the fixing ring presses and fixes the bend-adjusting connectingwire 2221 on thebraid 250, or the bending-adjusting connectingwire 2221 and the fixing ring are welded and fixed.

由于调弯固定件2211设置在导管200相对于回位固定件2212 的另一侧,因此当收线器142同时牵拉调弯连接线2221和回位连接 线2222时,调弯连接线2221通过调弯固定件2211控制导管200轴 向位移,回位固定件2212通过回位固定件2212控制刀头组件300 径向位移。在调弯连接线2221和回位连接线2222的综合作用下, 使刀头组件300实现S形调弯,从而使刀头组件300与导管200轴 向保持相同方向,降低刀头组件300擦伤血管壁的风险。而刀头组 件300调弯前与调弯后切除血管内斑块,能使血管获得更大的管腔。Since the bendingadjustment fixing part 2211 is arranged on the other side of thecatheter 200 relative to thereturn fixing part 2212, when the wire take-up 142 pulls the bendingadjustment connecting line 2221 and thereturn connecting line 2222 at the same time, the bendingadjustment connecting line 2221 passes through The bendingadjustment fixing part 2211 controls the axial displacement of thecatheter 200 , and thereturn fixing part 2212 controls the radial displacement of thecutter head assembly 300 through the returning fixingpart 2212 . Under the combined effect of thebending connecting line 2221 and thereturn connecting line 2222, thecutter head assembly 300 can realize S-shaped bending, so that thecutter head assembly 300 and thecatheter 200 can maintain the same axial direction, reducing the abrasion of thecutter head assembly 300 Risk to blood vessel walls. Andcutter head assembly 300 removes intravascular plaque before and after adjusting bending, can make blood vessel obtain bigger lumen.

本实施例通过调弯组件220实现了导管200与刀头组件300的S 形调弯,从而在切割血管内斑块时,可以通过调弯导管200和刀头 组件300,使得切割的面积增大。同时,由于刀头组件300在回位固 定件2212的作用下,与导管200的轴向基本保证方向相同,因此在刀头组件300推进过程中,不会误切割血管壁,大大降低了刀头组 件300擦伤血管壁的风险。相比现有技术的调弯方式,本申请既能 够使血管获得更大的管腔,又能保证切割时的安全性。In this embodiment, the S-shaped bending of thecatheter 200 and thecutter head assembly 300 is realized through thebend adjustment assembly 220, so that when cutting intravascular plaque, the cutting area can be increased by adjusting thebend catheter 200 and thecutter head assembly 300 . At the same time, since thecutter head assembly 300 is in the same direction as the axial direction of thecatheter 200 under the action of thereturn fixing member 2212, theblade assembly 300 will not accidentally cut the blood vessel wall during the advancement of thecutter head assembly 300. Risk ofassembly 300 abrading the vessel wall. Compared with the bending adjustment method of the prior art, the present application can not only make the blood vessel obtain a larger lumen, but also ensure the safety during cutting.

实施例三Embodiment three

本发明的实施例三提出了一种切除装置,如图23与图24所示, 实施例三与实施例一的相同之处不再赘述,实施例三与实施例一的 不同之处在于,手柄本体100上设置有控制槽150,控制组件140 设置在控制槽150内,控制座141卡合固定在控制槽150内,收线 器142包括滑动连接于控制座141的滑钮145以及设置在滑钮145 上的接线点1451,接线点1451用于连接调弯连接件222,调弯连接 件222为调弯连接线2221。Embodiment 3 of the present invention proposes a resection device, as shown in FIG. 23 and FIG. 24 , the similarities between Embodiment 3 and Embodiment 1 will not be repeated, and the difference between Embodiment 3 and Embodiment 1 is that Thehandle body 100 is provided with acontrol slot 150, thecontrol assembly 140 is arranged in thecontrol slot 150, thecontrol seat 141 is engaged and fixed in thecontrol slot 150, the wire take-updevice 142 includes aslide button 145 which is slidably connected to thecontrol seat 141 and is arranged on thecontrol seat 141. Theconnection point 1451 on theslide button 145 is used for connecting the bendingadjustment connecting piece 222 , and the bending adjusting connectingpiece 222 is the bending adjusting connectingline 2221 .

具体的,控制座141上设置有滑槽1412以及滑动连接于滑槽 1412的滑块1413,滑槽1412沿控制座141的长度方向设置。滑块 1413上设置有固定孔1414,控制座141的滑钮145朝向滑块1413 的一端设置有固定柱1452,固定柱1452穿过在固定孔1414,以使 滑钮145通过固定柱1452连接于滑块1413。滑钮145与滑块1413 之间设置有控制弹簧146,滑钮145与滑块1413同时滑动连接于控 制座141,且控制弹簧146具有初始压力,使得滑钮145紧贴于控制 座141内壁。Specifically, thecontrol seat 141 is provided with aslide groove 1412 and aslide block 1413 slidably connected to theslide groove 1412, and theslide groove 1412 is arranged along the length direction of thecontrol seat 141. Theslider 1413 is provided with afixing hole 1414, and theslider 145 of thecontrol seat 141 is provided with afixing column 1452 towards one end of theslider 1413, and thefixing column 1452 passes through thefixing hole 1414, so that theslider 145 is connected to theSlider 1413. Acontrol spring 146 is arranged between theslide button 145 and theslide block 1413, theslide button 145 and theslide block 1413 are slidably connected to thecontrol seat 141 simultaneously, and thecontrol spring 146 has an initial pressure, so that theslide button 145 is close to thecontrol seat 141 inner wall.

其中,所述锁定件1421为设置在滑钮145与控制座141之间的 粗糙接触面,当控制组件140处于自然状态时,控制弹簧146驱动 滑钮145紧贴于控制座141的内壁,由于滑钮145与控制座141之 间设置有粗糙接触面,因此滑钮145与控制座141在摩擦力的作用 下不会相对移动,实现收线器142的自锁定。当向控制座141的内 部按压滑钮145时,控制弹簧146受力压缩,且滑钮145与控制座 141分离,此时滑钮145可以相对控制座141移动。Wherein, the lockingmember 1421 is a rough contact surface arranged between theslide button 145 and thecontrol seat 141. When thecontrol assembly 140 is in a natural state, thecontrol spring 146 drives theslide button 145 to be close to the inner wall of thecontrol seat 141. A rough contact surface is provided between the slidingbutton 145 and thecontrol seat 141 , so the slidingbutton 145 and thecontrol seat 141 will not move relative to each other under the action of friction, and the self-locking of the wire take-up 142 is realized. When theslide button 145 is pressed to the inside of thecontrol seat 141, thecontrol spring 146 is compressed by force, and theslide button 145 is separated from thecontrol seat 141, and now theslide button 145 can move relative to thecontrol seat 141.

在其他实施例中,锁定件1421还可以为设置在滑钮145与控制 座141之间且相互卡合的凸点与凹槽结构,以增强滑钮145和控制 座141在贴合时的结合强度。在自然状态下,控制弹簧146驱动滑 钮145紧贴于控制座141内壁,从而通过凸点与凹槽结构相互卡合,实现收线器142的自锁定。In other embodiments, the lockingmember 1421 can also be a protruding point and groove structure arranged between the slidingbutton 145 and thecontrol seat 141 and engaged with each other, so as to enhance the combination of the slidingbutton 145 and thecontrol seat 141 when fitting strength. In the natural state, thecontrol spring 146 drives theslide button 145 to be close to the inner wall of thecontrol seat 141, so that the self-locking of the wire take-up 142 is realized through the interlocking of the convex point and the groove structure.

在本实施例中,滑钮145上设置有螺纹孔,接线点1451为螺纹 连接于滑钮145的螺丝,在装配时,将调弯连接件222粘接固定在 螺纹孔中,然后将螺丝拧入螺纹孔中进行二次固定。In this embodiment, the slidingbutton 145 is provided with a threaded hole, and theconnection point 1451 is a screw threadedly connected to the slidingbutton 145. During assembly, the bendingadjustment connector 222 is glued and fixed in the threaded hole, and then the screw is screwed. into the threaded hole for secondary fixation.

具体操作时,操作者通过按压滑钮145,以使滑钮145与控制座 141的贴合面分离,弹簧沿导管200的轴向方向滑动滑钮145,带动 调弯连接件222沿导管200的轴向方向移动,实现导管200的姿态 调整,对刀头组件300进行调弯。手术过程中,操作者不需要一直 按压滑钮145,同时,操作者仅需要单手即可实现刀头组件300的调 弯操作,减轻了操作负担,提高了操作便利性。另外,通过平移的 调节方式,调节行程精确,可以实现调弯角度的精确可控。During specific operation, the operator presses the slidingbutton 145 to separate the slidingbutton 145 from the bonding surface of thecontrol seat 141, and the spring slides the slidingbutton 145 along the axial direction of theguide tube 200, driving thebending adjustment connector 222 along theguide tube 200. Move in the axial direction to realize the posture adjustment of thecatheter 200 and adjust the bending of thecutter head assembly 300 . During the operation, the operator does not need to press theslide button 145 all the time, and at the same time, the operator only needs one hand to realize the bending operation of thecutter head assembly 300, which reduces the operating burden and improves the convenience of operation. In addition, through the adjustment method of translation, the adjustment stroke is precise, and the precise and controllable bending angle can be realized.

实施例四Embodiment four

本发明的实施例四提出了一种切除装置,如图25至图27所示, 实施例四与实施例一的相同之处不再赘述,实施例四与实施例一的 不同之处在于,手柄本体100上设置有控制槽150,控制组件140 设置在控制槽150内,控制座141卡合固定在控制槽150内,收线 器142包括转动连接于控制座141的旋钮147以及用于卡合所述旋 钮的锁定件1421,锁定件1421为用于将旋钮147卡合固定的止动销148,止动销148滑动连接于控制座141,旋钮147上设置有与止动 销148卡合连接的止动槽1472。其中,止动销148与控制座141的 内壁之间设置有止动弹簧1481。Embodiment 4 of the present invention proposes a resection device, as shown in FIG. 25 to FIG. 27 , the similarities between Embodiment 4 and Embodiment 1 will not be repeated, and the difference between Embodiment 4 and Embodiment 1 is that Thehandle body 100 is provided with acontrol slot 150, thecontrol assembly 140 is arranged in thecontrol slot 150, thecontrol seat 141 is engaged and fixed in thecontrol slot 150, and the wire take-updevice 142 includes aknob 147 which is rotatably connected to thecontrol seat 141 and is used for locking Thelocking piece 1421 is engaged with the knob, and thelocking piece 1421 is astop pin 148 used to engage and fix theknob 147. Thestop pin 148 is slidably connected to thecontrol seat 141. Movinggroove 1472. Wherein, astop spring 1481 is arranged between thestop pin 148 and the inner wall of thecontrol seat 141.

旋钮147上设置有旋转夹块1471,旋转夹块1471用于连接调弯 连接件222,调弯连接件222为调弯连接线2221,转动旋钮147以 使调弯连接件222缠绕在旋转夹块1471上,从而实现牵拉调弯连接 件222以调整导管200姿态的目的。在自然状态下,止动弹簧1481 驱动止动销朝向旋钮147的方向移动,并卡接在止动槽1472内。当 需要转动旋钮147时,向远离旋钮147的方向滑动止动销148,以使 止动销148与止动槽1472分离,此时可转动旋钮147。当需要锁定 旋钮147时,放开止动销148,止动弹簧1481驱动止动销148朝向 靠近旋钮147的方向滑动,以使止动销148与止动槽1472卡合,此 时旋钮147不可转动。Therotary clamp 1471 is arranged on theknob 147, and therotary clamp 1471 is used to connect thebend adjustment connector 222, and thebend adjustment connector 222 is a bendadjustment connecting line 2221, and theknob 147 is turned to make thebend adjustment connector 222 wrap around therotation clamp 1471 , so as to achieve the purpose of pulling the bendadjustment connecting piece 222 to adjust the posture of thecatheter 200 . In a natural state, thestop spring 1481 drives the stop pin to move towards the direction of theknob 147 and is engaged in thestop slot 1472 . When it is necessary to turn theknob 147, slide thestop pin 148 in a direction away from theknob 147, so that thestop pin 148 is separated from thestop groove 1472, and theknob 147 can be turned this moment. When the lockingknob 147 is needed, thestop pin 148 is released, and thestop spring 1481 drives thestop pin 148 to slide towards the direction close to theknob 147, so that thestop pin 148 is engaged with thestop groove 1472, and theknob 147 cannot rotate at this moment.

在本申请进一步实施方案中,控制组件140还包括用于防止误 触的锁定保险组件1422,所述锁定保险组件1422设置在控制座141 与收线器142之间。In a further embodiment of the present application, thecontrol assembly 140 also includes a lockingsafety assembly 1422 for preventing accidental touches, and the lockingsafety assembly 1422 is arranged between thecontrol seat 141 and the wire take-up 142.

具体的,控制座141内还设置有定位柱1415,定位柱1415上套 设有定位弹簧1416,定位弹簧1416设置在控制座141与旋钮147 之间。其中,旋钮147可以沿自身轴向方向移动,且旋转夹块1471 与控制座141之间设置有锁定保险组件1422,其中,锁定保险组件 1422为卡位结构149。其中,卡位结构149包括设置在旋转夹块1471 朝向旋钮147一端的卡位槽1491以及设置在控制座141朝向旋转夹 块1471一端的卡位块1492,当卡位块1492与卡位槽1491卡合固定 时,旋钮147无法转动。Specifically, thecontrol seat 141 is also provided with apositioning post 1415, thepositioning post 1415 is sleeved with apositioning spring 1416, and thepositioning spring 1416 is arranged between thecontrol seat 141 and theknob 147. Wherein, theknob 147 can move along its own axial direction, and alocking safety component 1422 is arranged between therotating clamp block 1471 and thecontrol seat 141 , wherein the lockingsafety component 1422 is a lockingstructure 149 . Wherein, the lockingstructure 149 includes alocking groove 1491 arranged at the end of therotating clamping block 1471 facing theknob 147 and alocking block 1492 arranged at the end of thecontrol seat 141 facing therotating clamping block 1471. When thelocking block 1492 and thelocking groove 1491 When engaged and fixed, theknob 147 cannot be rotated.

在具体操作时,在自然状态下,定位弹簧1416向外推动旋钮 147,以使旋转夹块1471与控制座141之间的卡位结构149卡合固 定。同时,止动销148在止动弹簧1481的驱动下与止动槽1472处 于卡合状态。而当止动销148插接在止动槽1472中时,止动销148 位于旋钮147与控制座141之间,挡住了旋钮147轴向移动的路径, 因此旋钮147无法按压,也无法解除卡位块1492与卡位槽1491的 卡合连接,因此,在自然状态下,旋钮147无法转动。当需要转动 旋钮147时,操作者首先向远离旋钮147的方向滑动止动销148,以 使止动销148与止动槽1472分离,然后向内按压旋钮147,定位弹 簧1416受力被压缩,同时使卡位结构149分离,即卡位块1492与 卡位槽1491分离,此时可以转动旋钮147。During specific operation, in a natural state, thepositioning spring 1416 pushes theknob 147 outward, so that the lockingstructure 149 between therotating clamp block 1471 and thecontrol seat 141 is engaged and fixed. At the same time, thestop pin 148 is engaged with thestop groove 1472 under the drive of thestop spring 1481 . And when thestop pin 148 is inserted in thestop groove 1472, thestop pin 148 is located between theknob 147 and thecontrol seat 141, blocking the axial movement path of theknob 147, so theknob 147 cannot be pressed, and the locking block cannot be released. 1492 is engaged with the lockinggroove 1491, therefore, in a natural state, theknob 147 cannot be rotated. When theknob 147 needs to be turned, the operator first slides thestop pin 148 away from theknob 147, so that thestop pin 148 is separated from thestop groove 1472, and then presses theknob 147 inwardly, and thepositioning spring 1416 is compressed by force, and simultaneously The lockingstructure 149 is separated, that is, thelocking block 1492 is separated from thelocking slot 1491 , and theknob 147 can be turned at this time.

因此,本实施例的控制组件140通过在控制座141与收线器142 之间设置额外的锁定保险组件1422,实现了收线器142的双重锁定, 提高了结构的可靠性,保证了医生在推进刀头组件300以切割斑块 时,刀头组件300的姿态不会发生变化。仅当医生同时推动止动销148并按压旋钮147时,才能转动旋钮147,不会因为误触而导致刀 头组件300的朝向发生变化,避免了旋切刀头320切伤血管,从而 避免医疗事故的发生,进而保证了手术的顺利进行。Therefore, thecontrol assembly 140 of this embodiment realizes the double locking of thewire retractor 142 by setting an additionallocking safety assembly 1422 between thecontrol seat 141 and thewire retractor 142, which improves the reliability of the structure and ensures that the doctor can When thecutter head assembly 300 is advanced to cut the plaque, the posture of thecutter head assembly 300 does not change. Only when the doctor pushes thestop pin 148 and presses theknob 147 at the same time, can theknob 147 be turned, and the orientation of thecutter head assembly 300 will not be changed due to accidental touch, avoiding therotary cutter head 320 from cutting blood vessels, thereby avoiding medical accidents occurrence, thereby ensuring the smooth progress of the operation.

实施例五Embodiment five

本发明的实施例五提出了一种切除装置,如图29至图33所示, 实施例五与实施例一的相同之处不再赘述,实施例五与实施例一的 不同之处在于,驱动机构400设置在手柄本体100内,导管200与 驱动机构400可拆卸连接。Embodiment 5 of the present invention proposes a resection device, as shown in FIGS. 29 to 33 , and the similarities between Embodiment 5 and Embodiment 1 will not be repeated. The difference between Embodiment 5 and Embodiment 1 is that Thedriving mechanism 400 is disposed in thehandle body 100 , and thecatheter 200 is detachably connected to thedriving mechanism 400 .

具体的,结合图2所示,驱动机构400包括设置在手柄本体100 内的驱动模块410,驱动模块410包括动力轴4111、动力源411以 及电源组件413,动力源411用于驱动动力轴4111转动,导管200 通过连接模块440可拆卸连接于动力轴4111。其中,动力源411为 电机,电机用于驱动扭矩轴210转动,电源组件413为电性连接于 电机的电池。Specifically, as shown in FIG. 2 , thedriving mechanism 400 includes adriving module 410 disposed in thehandle body 100. Thedriving module 410 includes apower shaft 4111, apower source 411 and apower supply assembly 413. Thepower source 411 is used to drive thepower shaft 4111 to rotate. , theconduit 200 is detachably connected to thepower shaft 4111 through theconnection module 440 . Wherein, thepower source 411 is a motor, and the motor is used to drive thetorque shaft 210 to rotate, and thepower supply assembly 413 is a battery electrically connected to the motor.

其中,结合图31至图33所示,扭矩轴210的近端设置有传动 轴212,动力轴4111的远端设置有插接槽4112,传动轴212插接在 插接槽4112内且与动力轴4111同步转动。传动轴212上设置有卡 接槽2121,连接模块440包括与卡接槽2121卡合连接的卡接定位组 件441以及用于控制卡接定位组件441的卡接控制组件442。Wherein, as shown in FIG. 31 to FIG. 33 , the proximal end of thetorque shaft 210 is provided with atransmission shaft 212, and the distal end of thepower shaft 4111 is provided with aninsertion slot 4112, and thetransmission shaft 212 is inserted into theinsertion slot 4112 and connected with thepower Shaft 4111 rotates synchronously. Thetransmission shaft 212 is provided with aclamping groove 2121, and theconnection module 440 includes a clampingpositioning component 441 clamped and connected with the clampinggroove 2121 and aclamping control component 442 for controlling the clampingpositioning component 441.

在本实施例中,扭矩轴210具体包括轴本体213以及设置在轴 本体213上的绕簧214,其中,绕簧214呈螺旋状缠绕并固定在轴本 体213上,可通过焊接固定,绕簧214的旋转方向与轴本体213的 旋转方向相反。当电机驱动扭矩轴210旋转时,与轴本体213旋转 方向相反的绕簧214能够更迅速的将导管200中的斑块送出,提高 切除效率。In this embodiment, thetorque shaft 210 specifically includes ashaft body 213 and acoil spring 214 arranged on theshaft body 213, wherein thecoil spring 214 is helically wound and fixed on theshaft body 213, and can be fixed by welding. The rotation direction of 214 is opposite to the rotation direction of theshaft body 213 . When the motor drives thetorque shaft 210 to rotate, thecoil spring 214 opposite to the rotation direction of theshaft body 213 can send the plaque in thecatheter 200 out more quickly, improving the removal efficiency.

进一步地,传动轴212上设置有至少一个限位块2122,插接槽 4112的内壁上设置有限位槽4113,在传动轴212插接在插接槽4112 内以后,限位块2122用于与限位槽4113适配以将传动轴212周向 固定于动力轴4111。在本实施例中,传动轴212上设置有三个圆周阵列分布的限位块2122,三个限位块2122通过与限位槽4113插接 形式配合,起到使动力轴4111和传动轴212圆周方向同步转动的作 用,以使扭矩轴210与动力轴4111同步转动。Further, thetransmission shaft 212 is provided with at least onelimit block 2122, and the inner wall of theinsertion slot 4112 is provided with alimit slot 4113, after thetransmission shaft 212 is inserted into theinsertion slot 4112, thelimit block 2122 is used to communicate with Thelimit groove 4113 is adapted to fix thetransmission shaft 212 to thepower shaft 4111 in the circumferential direction. In this embodiment, thetransmission shaft 212 is provided with threelimit blocks 2122 distributed in a circular array, and the threelimit blocks 2122 cooperate with thelimit groove 4113 to make thepower shaft 4111 and thedrive shaft 212 direction synchronous rotation, so that thetorque shaft 210 and thepower shaft 4111 rotate synchronously.

进一步地,卡接定位组件441包括卡接件4411、定位件4412 以及连接端部4413,卡接件4411设置在动力轴4111上并用于与卡 接槽2121卡合连接,定位件4412活动连接于动力轴4111,定位件 4412用于卡接件4411的定位,连接端部4413用于连接卡接控制件 443以及卡接件4411,卡接控制组件442通过控制连接端部4413以 控制卡接件4411与卡接槽2121卡合连接或分离。Furthermore, the clamping andpositioning assembly 441 includes aclamping piece 4411, apositioning piece 4412 and a connectingend 4413. Theclamping piece 4411 is arranged on thepower shaft 4111 and is used to engage with the clampinggroove 2121. Thepositioning piece 4412 is movably connected to Thepower shaft 4111, thepositioning part 4412 are used for the positioning of theclamping part 4411, the connectingend 4413 is used for connecting the clampingcontrol part 443 and theclamping part 4411, and the clampingcontrol component 442 controls the clamping part by controlling the connectingend 4413 4411 is engaged with or separated from the lockinggroove 2121 .

当传动轴212插入至插接槽4112的底部时,卡接件4411的头 端卡合连接于卡接槽2121,由于卡接件4411通过定位件4412与动 力轴4111轴向固定,因此当卡接件4411与卡接槽2121卡合连接时, 限制了传动轴212与动力轴4111的轴向位移。When thetransmission shaft 212 is inserted into the bottom of theinsertion slot 4112, the head end of theclamping piece 4411 is snapped and connected to theclamping groove 2121. Since theclamping piece 4411 is axially fixed to thepower shaft 4111 through thepositioning piece 4412, when the clamping When the connectingpiece 4411 is engaged with the lockinggroove 2121 , the axial displacement of thetransmission shaft 212 and thepower shaft 4111 is limited.

在本实施例中,卡接件4411为头端朝向传动轴212弯曲的卡位 弹片,定位件4412为螺纹连接于动力轴4111的固定螺栓。卡接件 4411上设置有用于定位件4412穿过的通孔,通过将定位件4412穿 过卡接件4411上的通孔并螺纹连接于动力轴4111,以使卡接件4411轴向固定与动力轴4111,并且卡接件4411能够以定位件4412为中 心点转动,从而卡合连接于卡接槽2121或者从卡接槽2121内脱离。In this embodiment, the engagingmember 4411 is a locking spring whose head end is bent toward thetransmission shaft 212, and thepositioning member 4412 is a fixing bolt threadedly connected to thepower shaft 4111. Theclamping piece 4411 is provided with a through hole for thepositioning piece 4412 to pass through. By passing thepositioning piece 4412 through the through hole on theclamping piece 4411 and screwing it to thepower shaft 4111, theclamping piece 4411 is axially fixed and connected to thepower shaft 4111. Thepower shaft 4111 and the engagingmember 4411 can rotate with thepositioning member 4412 as the center point, so as to be engagingly connected to the engaginggroove 2121 or disengaged from the engaginggroove 2121 .

连接端部4413一体成型于卡接件4411,连接端部4413设置在 卡接件4411的尾端,连接端部4413为驱动弹片,且驱动弹片朝向 背离动力轴4111的方向弯曲。当朝向动力轴4111的方向挤压连接 端部4413时,卡接件4411以定位件4412为中点转动,从而卡接件4411的头端从而卡接槽2121内脱离,使动力轴4111与传动轴212 可沿轴向分离。The connectingend 4413 is integrally formed on the clampingmember 4411, and the connectingend 4413 is arranged at the tail end of the clampingmember 4411. The connectingend 4413 is a driving elastic piece, and the driving elastic piece bends in a direction away from thepower shaft 4111. When theconnection end 4413 is squeezed toward the direction of thepower shaft 4111, theclamping piece 4411 rotates with thepositioning piece 4412 as the midpoint, so that the head end of theclamping piece 4411 is disengaged from the clampinggroove 2121, so that thepower shaft 4111 and the transmission Theshaft 212 is axially separable.

卡接控制组件442包括设置在手柄本体100上轴套4421、固定 设置在轴套4421内侧的固定端部4422、与轴套4421活动连接的活 动端部4423以及卡接控制件443,活动端部4423设置定位件4412 与连接端部4413之间,卡接控制件443用于控制活动端部4423移 动,动力轴4111穿过固定端部4422以及活动端部4423后连接件于 传动轴212。The snap-incontrol assembly 442 includes ashaft sleeve 4421 arranged on thehandle body 100, afixed end portion 4422 fixedly arranged inside theshaft sleeve 4421, amovable end portion 4423 movably connected with theshaft sleeve 4421, and a snap-incontrol member 443, themovable end portion 4423 is set between thepositioning part 4412 and the connectingend 4413 , the clampingcontrol part 443 is used to control the movement of themovable end 4423 , and thepower shaft 4111 passes through thefixed end 4422 and themovable end 4423 to connect the part to thetransmission shaft 212 .

固定端部4422为与动力轴4111连接的固定轴承,活动端部4423 为沿轴套4421的轴向方向与轴套4421滑动连接的滑动压块。卡接 控制件443包括连接于固定端部4422与活动端部4423的弹性件 4433以及用于控制滑动压块位置的拉绳4431。Thefixed end part 4422 is a fixed bearing connected with thepower shaft 4111 , and themovable end part 4423 is a sliding pressure block slidingly connected with theshaft sleeve 4421 along the axial direction of theshaft sleeve 4421 . The clampingcontrol part 443 includes anelastic part 4433 connected to thefixed end part 4422 and themovable end part 4423 and apull cord 4431 for controlling the position of the sliding pressure block.

拉绳4431的末端设置有拉环4432,连接端部4413与卡接件4411 一体连接,连接端部4413的近端翘起,活动端部4423在连接端部 4413与卡接件4411之间滑移。The end of thepull cord 4431 is provided with apull ring 4432, the connectingend 4413 is integrally connected with the clampingmember 4411, the proximal end of the connectingend 4413 is tilted, and themovable end 4423 slides between the connectingend 4413 and the clampingmember 4411 shift.

具体的,固定端部4422固定连接于轴套4421的内侧,并连接 于动力轴4111,动力轴4111以定位件4412为基点转动。活动端部 4423与定位件4412之间设置有弹性件4433,弹性件4433用于驱动 活动端部4423朝向远离定位件4412的方向滑移,弹性件4433靠近 活动端部4423的一端或者活动端部4423上设置有拉绳4431,拉绳 4431的一端连接于弹性件4433或者活动端部4423,拉绳4431的另 一端连接于手柄本体100外侧的拉环4432,操作者可以通过拉环 4432牵拉拉绳4431,以使活动端部4423朝向固定端部4422的方向 移动。其中,弹性件4433为弹簧,拉绳4431为镍钛丝,镍钛丝焊 接在弹簧上。Specifically, thefixed end 4422 is fixedly connected to the inner side of theshaft sleeve 4421 and connected to thepower shaft 4111, and thepower shaft 4111 rotates with thepositioning member 4412 as the base point. Anelastic member 4433 is provided between themovable end 4423 and thepositioning member 4412. Theelastic member 4433 is used to drive themovable end 4423 to slide away from thepositioning member 4412. The end of theelastic member 4433 close to themovable end 4423 or themovable end 4423 is provided with adrawstring 4431, one end of thedrawstring 4431 is connected to theelastic member 4433 or themovable end 4423, and the other end of thedrawstring 4431 is connected to thedraw ring 4432 on the outside of thehandle body 100, the operator can pull through thedraw ring 4432 Pull therope 4431 to make themovable end 4423 move toward the direction of thefixed end 4422 . Wherein, theelastic member 4433 is a spring, and thestay cord 4431 is a nickel-titanium wire, and the nickel-titanium wire is welded on the spring.

在初始状态时,活动端部4423在弹性件4433的作用力下,位 于远离固定轴承的一侧,此时活动端部4423位于卡接件4411上, 卡接件4411的头端卡合连接在卡接槽2121内。当操作者通过牵拉 拉绳4431时,活动端部4423沿轴套4421的轴向方向朝向固定端部 4422移动,并从两侧挤压连接端部4413,使得连接端部4413朝向 动力轴4111的方向移动,并使卡接件4411以定位件4412为中点转 动,从而卡接件4411的头端脱离卡接槽2121,此时,动力轴4111 与传动轴212可以轴向分离。In the initial state, themovable end 4423 is located on the side away from the fixed bearing under the force of theelastic member 4433. At this time, themovable end 4423 is located on the clampingmember 4411, and the head end of the clampingmember 4411 is snapped and connected to the inside the clampinggroove 2121. When the operator pulls thepull rope 4431, themovable end portion 4423 moves toward thefixed end portion 4422 along the axial direction of thesleeve 4421, and squeezes the connectingend portion 4413 from both sides, so that the connectingend portion 4413 faces thepower shaft 4111 direction, and make the clampingmember 4411 rotate with thepositioning member 4412 as the midpoint, so that the head end of the clampingmember 4411 disengages from the clampinggroove 2121, and at this time, thepower shaft 4111 and thetransmission shaft 212 can be axially separated.

由上,本实施例通过设置卡接定位组件441和卡接控制组件 442,使得扭矩轴210可以轴向可拆卸连接于动力轴4111,并通过限 位块2122和限位槽4113的配合,使扭矩轴210与动力轴4111同轴 转动,电机输出扭矩并通过动力轴4111驱动扭矩轴210转动。Based on the above, this embodiment provides the clampingpositioning component 441 and the clampingcontrol component 442, so that thetorque shaft 210 can be detachably connected to thepower shaft 4111 in the axial direction, and through the cooperation of thelimit block 2122 and thelimit groove 4113, theThe torque shaft 210 rotates coaxially with thepower shaft 4111 , and the motor outputs torque to drive thetorque shaft 210 to rotate through thepower shaft 4111 .

手柄本体100上设置有收集部170,收集部170罩设在导管200 近端的外侧,收集部170用于收集从导管200中排出的斑块。并且 收集部170与手柄本体100可拆卸连接,导管200的近端与收集部 170可拆卸连接。导管200的近端设置有缓冲套管270,缓冲套管270 上设置有密封槽271,手柄本体100与收集部170分别通过密封槽 271与导管200连接。Thehandle body 100 is provided with acollection part 170 , and thecollection part 170 is covered outside the proximal end of thecatheter 200 , and thecollection part 170 is used to collect plaque discharged from thecatheter 200 . And thecollection part 170 is detachably connected with thehandle body 100, and the proximal end of thecatheter 200 is detachably connected with thecollection part 170. The proximal end of thecatheter 200 is provided with abuffer sleeve 270, and thebuffer sleeve 270 is provided with a sealinggroove 271, and thehandle body 100 and thecollection part 170 are respectively connected to thecatheter 200 through the sealinggroove 271.

在本实施例中,收集部170设置在手柄本体100远端的底部, 收集部170与手柄本体100之间设置有收集腔体,通过收集腔体容 纳切除的斑块。导管200的近端固定连接于缓冲导管200的远端, 或者导管200的近端固定连接于缓冲导管200的近端。扭矩轴210 依次穿过导管200以及缓冲导管200并伸入收集部170内,由导管 200冲排出的斑块或者血栓掉落在收集部170内。In this embodiment, thecollection part 170 is arranged at the bottom of the distal end of thehandle body 100, and a collection cavity is provided between thecollection part 170 and thehandle body 100, and the resected plaque is accommodated through the collection cavity. The proximal end of thecatheter 200 is fixedly connected to the distal end of thebuffer catheter 200 , or the proximal end of thecatheter 200 is fixedly connected to the proximal end of thebuffer catheter 200 . Thetorque shaft 210 passes through thecatheter 200 and thebuffer catheter 200 in sequence and extends into thecollection part 170, and the plaque or thrombus discharged by thecatheter 200 falls in thecollection part 170.

轴套4421固定连接于手柄本体100且朝向收集部170的方向突 出,卡接控制组件442的其它部件均设置在轴套4421的内腔中。动 力轴4111的一端连接于动力源411,且动力轴4111的另一端穿出轴 套4421并与传动轴212连接。Theshaft sleeve 4421 is fixedly connected to thehandle body 100 and protrudes toward the direction of thecollection part 170, and other parts of the lockingcontrol assembly 442 are arranged in the inner cavity of theshaft sleeve 4421. One end of thepower shaft 4111 is connected to thepower source 411, and the other end of thepower shaft 4111 passes through theshaft sleeve 4421 and is connected with thetransmission shaft 212.

由于导管200的近端连接于缓冲套管270,因此导管200中的斑 块或者血栓在通过缓冲套管270以后就会因扭矩轴210的高速旋转 和自身重力落入收集部170内,而不会跟随扭矩轴210继续向前移 动。从而保护了设置在轴套4421内的卡接控制组件442。Since the proximal end of thecatheter 200 is connected to thebuffer sleeve 270, the plaque or thrombus in thecatheter 200 will fall into thecollection part 170 due to the high-speed rotation of thetorque shaft 210 and its own gravity after passing through thebuffer sleeve 270, instead of Will continue to move forward following thetorque shaft 210 . Thus, the clampingcontrol assembly 442 disposed in thesleeve 4421 is protected.

进一步地,如图30所示,本实施例的轴本体213的长度大于绕 簧214的长度,且绕簧214近端与传动轴212之间的设置有间隔段, 位于间隔段的轴本体213上未设置绕簧214。通过上述方案,由导管 200中排出的斑块或者血栓移动至绕簧214的近端后,就会因扭矩轴210的高速旋转和自身重力落入收集部170内,从而保证了斑块或者 血栓不会继续向前移动,而对卡接控制组件442造成影响。Further, as shown in Figure 30, the length of theshaft body 213 in this embodiment is greater than the length of thecoil spring 214, and a spacer is provided between the proximal end of thecoil spring 214 and thetransmission shaft 212, and theshaft body 213 located in the spacer Thecoil spring 214 is not provided on it. Through the above scheme, after the plaque or thrombus discharged from thecatheter 200 moves to the proximal end of thecoil spring 214, it will fall into thecollection part 170 due to the high-speed rotation of thetorque shaft 210 and its own gravity, thereby ensuring that the plaque or thrombus It will not continue to move forward and affect the snap-incontrol assembly 442 .

具体的,缓冲套管270固定设置在导管200上,缓冲套管270 为硅胶材质,缓冲套管270上设置有密封槽271,密封槽271绕缓冲 套管270的一周向缓冲套管270内部凹陷,形成一圈环形的凹槽, 缓冲套管270与手柄本体100和收集部170组合后,手柄本体100 和收集部170的边缘通过缓冲槽连接从而密封。Specifically, thebuffer sleeve 270 is fixedly arranged on thecatheter 200, thebuffer sleeve 270 is made of silica gel, thebuffer sleeve 270 is provided with a sealinggroove 271, and the sealinggroove 271 is recessed around the circumference of thebuffer sleeve 270 in thebuffer sleeve 270. , forming a ring-shaped groove. After thebuffer sleeve 270 is combined with thehandle body 100 and thecollection part 170, the edges of thehandle body 100 and thecollection part 170 are connected through the buffer groove to seal.

通过本实施例的上述技术方案,医生可以根据实际使用情况更 换导管200。具体操作时,首先将收集部170取下,然后拉动手柄本 体100上的拉环4432,通过拉环4432将拉力沿着拉绳4431传递到 弹性件4433上,以使活动端部4423朝向固定端部4422移动。在活动端部4423移动的过程中,活动端部4423逐渐压过连接端部4413, 使翘起的连接端部4413朝向动力轴4111移动。在连接端部4413的 联动作用下,嵌入卡接槽2121的卡接件4411逐渐从卡接槽2121中 脱离。当卡接件4411整体从卡接槽2121内脱离时,操作者可以沿 轴向将扭矩轴210从而动力轴4111上拆卸。Through the above-mentioned technical solution of this embodiment, the doctor can replace thecatheter 200 according to the actual use situation. During the specific operation, first remove thecollection part 170, then pull thepull ring 4432 on thehandle body 100, and transmit the pulling force along thepull cord 4431 to theelastic member 4433 through thepull ring 4432, so that themovable end 4423 faces thefixed end Part 4422 moves. During the movement of themovable end portion 4423 , themovable end portion 4423 gradually presses over the connectingend portion 4413 , so that the raised connectingend portion 4413 moves toward thepower shaft 4111 . Under the linkage action of the connectingend portion 4413, the engagingpiece 4411 embedded in the engaginggroove 2121 is gradually disengaged from the engaginggroove 2121. When the clampingmember 4411 is disengaged from the clampinggroove 2121 as a whole, the operator can disassemble thetorque shaft 210 and thus thepower shaft 4111 in the axial direction.

在装入新的扭矩轴210时,首先牵拉拉环4432,然后将扭矩轴 210插入插接槽4112中,然后放开拉环4432,确认卡接件4411卡 入卡接槽2121后,将收集部170安装在手柄本体100上。When installing anew torque shaft 210, first pull thepull ring 4432, then insert thetorque shaft 210 into theinsertion slot 4112, then release thepull ring 4432, and confirm that theclip 4411 is snapped into theclip slot 2121, and then insert Thecollection part 170 is installed on thehandle body 100 .

本实施例采用了可更换导管200的设计,提高了手术的灵活性 和经济性,避免了因导管200的堵塞导致斑块或者血栓无法及时排 出血管,而造成远端栓塞,保证了病人的生命安全。This embodiment adopts the design ofreplaceable catheter 200, which improves the flexibility and economy of the operation, avoids plaque or thrombus that cannot be discharged from the blood vessel in time due to the blockage of thecatheter 200, and causes distal embolism, ensuring the life of the patient Safety.

以上,仅为本发明较佳的具体实施方式,但本发明的保护范围 并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技 术范围内,可轻易想到的变化或替换,都应涵盖在本发明的保护范 围之内。因此,本发明的保护范围应以权利要求的保护范围为准。The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. All should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (10)

CN202111678798.1A2021-12-312021-12-31 a cutting devicePendingCN116407225A (en)

Priority Applications (4)

Application NumberPriority DateFiling DateTitle
CN202111678798.1ACN116407225A (en)2021-12-312021-12-31 a cutting device
US18/724,570US20250099129A1 (en)2021-12-312022-12-27Resection Apparatus
PCT/CN2022/142344WO2023125539A1 (en)2021-12-312022-12-27Resection apparatus
EP22914792.1AEP4458289A4 (en)2021-12-312022-12-27Resection apparatus

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CN202111678798.1ACN116407225A (en)2021-12-312021-12-31 a cutting device

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US20200129202A1 (en)*2018-10-292020-04-30Cardiovascular Systems, Inc.System, device, and method for interrupted dual action (sanding and cutting) forces with continual maceration and aspiration
CN214857236U (en)*2021-03-022021-11-26上海交通大学医学院附属瑞金医院Disposable scalpel blade with protective sheath

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
US20070010841A1 (en)*2005-07-052007-01-11Medical Innovations Pte LtdLancet assembly
US20120239142A1 (en)*2011-02-252012-09-20Jun LiuProsthetic heart valve delivery apparatus
CN202020777U (en)*2011-03-312011-11-02先健科技(深圳)有限公司Adjustable bent catheter
CN103957825A (en)*2011-10-132014-07-30阿瑟罗迈德公司Atherectomy apparatus, systems and methods
US20200129202A1 (en)*2018-10-292020-04-30Cardiovascular Systems, Inc.System, device, and method for interrupted dual action (sanding and cutting) forces with continual maceration and aspiration
CN214857236U (en)*2021-03-022021-11-26上海交通大学医学院附属瑞金医院Disposable scalpel blade with protective sheath

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