CN115337132A - Conveying Devices and Systems - Google Patents

Abstract

The invention discloses a conveying device and a conveying system, wherein the conveying device comprises a sheath tube assembly and a handle assembly connected to the near end of the sheath tube assembly, a guide wire channel penetrating along the axial direction is arranged in the sheath tube assembly, the handle assembly comprises a guide wire joint, and a plurality of through holes communicated with the guide wire channel are formed in the guide wire joint. The guide wire joint can realize accurate positioning of the guide wire, so that the positioning accuracy of the whole system is improved.

Description

Translated fromChinese

输送装置及系统Conveying Devices and Systems

技术领域technical field

本发明涉及介入医疗器械领域，尤其涉及一种输送装置及系统。The invention relates to the field of interventional medical devices, in particular to a delivery device and system.

背景技术Background technique

近十余年来，主动脉覆膜支架腔内隔绝术已经广泛应用于胸、腹主动脉的动脉瘤和动脉夹层等病变，其疗效确切、创伤小、恢复快、并发症少，已成为一线的治疗方法。但是，现有技术的输送系统的定位精度不高，系统无法准确、快速的将覆膜支架进行释放。故，需要设计一种可靠的输送系统。In the past ten years, endovascular exclusion of aortic stent grafts has been widely used in thoracic and abdominal aortic aneurysms and arterial dissections. treatment method. However, the positioning accuracy of the delivery system in the prior art is not high, and the system cannot accurately and quickly release the stent graft. Therefore, it is necessary to design a reliable delivery system.

发明内容Contents of the invention

本发明要解决的技术问题在于，针对现有技术中的上述缺陷，提供一种输送装置及系统。The technical problem to be solved by the present invention is to provide a conveying device and system for the above-mentioned defects in the prior art.

本发明解决其技术问题所采用的技术方案是：The technical solution adopted by the present invention to solve its technical problems is:

提供一种输送装置，包括鞘管组件，以及连接在所述鞘管组件近端的手柄组件，所述鞘管组件内设置有沿轴向贯穿的导丝通道，所述手柄组件包括导丝接头，所述导丝接头上设置有多个与所述导丝通道连通的穿孔。A delivery device is provided, comprising a sheath tube assembly, and a handle assembly connected to the proximal end of the sheath tube assembly, a guide wire channel penetrating in the axial direction is arranged in the sheath tube assembly, and the handle assembly includes a guide wire connector , the guide wire connector is provided with a plurality of perforations communicating with the guide wire channel.

在其中一个实施例中，所述鞘管组件包括推管，所述导丝通道设置在所述推管内，所述导丝接头内设置有分别与所述导丝通道及所述穿孔相连通、供导丝穿设的导丝限位槽，所述导丝限位槽的近端与远端之间的连线与所述推管的纵向中心轴之间的夹角为20°～40°。In one of the embodiments, the sheath tube assembly includes a push tube, the guide wire channel is set in the push tube, and the guide wire connector is provided with the guide wire channel and the perforation respectively communicated with, The guide wire limit groove for the guide wire to pass through, the angle between the line between the proximal end and the distal end of the guide wire limit groove and the longitudinal central axis of the push tube is 20° to 40° .

在其中一个实施例中，所述鞘管组件包括推管，所述导丝通道设置在所述推管内，所述导丝通道的近端与所述导丝限位槽的远端共轴线，所述导丝限位槽的远端端面与所述推管的近端段面位于同一平面内。In one of the embodiments, the sheath assembly includes a push tube, the guide wire channel is arranged in the push tube, the proximal end of the guide wire channel is coaxial with the distal end of the guide wire limiting groove, The distal end surface of the guide wire limiting groove is located in the same plane as the proximal section surface of the push tube.

在其中一个实施例中，所述导丝接头上设置有导丝定位机构。In one of the embodiments, the guide wire connector is provided with a guide wire positioning mechanism.

在其中一个实施例中，所述导丝定位机构包括用于与从所述穿孔中穿出的导丝固定连接的拉扣组件，以及对所述拉扣组件进行限位的拉扣定位组件，所述拉扣定位组件设置在所述导丝接头的外表面，所述拉扣组件可拆卸的连接在所述拉扣定位组件上。In one of the embodiments, the guide wire positioning mechanism includes a buckle assembly for fixed connection with the guide wire passing through the hole, and a pull buckle positioning assembly for limiting the position of the pull buckle assembly, The buckle positioning component is arranged on the outer surface of the guide wire joint, and the buckle component is detachably connected to the buckle positioning component.

在其中一个实施例中，所述导丝接头的外表面设置有容纳槽，所述拉扣定位组件安装在所述容纳槽内。In one of the embodiments, the outer surface of the guide wire joint is provided with a receiving groove, and the pull button positioning component is installed in the receiving groove.

在其中一个实施例中，所述拉扣组件包括用于与导丝固定连接的拉扣主体，及连接在所述拉扣主体上的拉环。In one of the embodiments, the buckle assembly includes a buckle body for fixed connection with the guide wire, and a pull ring connected to the buckle body.

在其中一个实施例中，所述拉扣主体包括第一扣合部、连接部及第二扣合部，所述连接部的一端连接在所述第一扣合部上，所述连接部的另一端朝远离所述导丝接头的外表面的一侧延伸，所述第二扣合部连接在所述连接部的另一端、并朝靠近所述导丝接头的外表面的一侧延伸，所述拉环连接在所述连接部的另一端。In one of the embodiments, the buckle body includes a first fastening part, a connecting part and a second fastening part, one end of the connecting part is connected to the first fastening part, and the connecting part The other end extends toward a side away from the outer surface of the guide wire connector, the second fastening portion is connected to the other end of the connecting portion and extends toward a side close to the outer surface of the guide wire connector, The pull ring is connected to the other end of the connecting part.

在其中一个实施例中，所述拉扣组件还包括设置在所述拉扣主体上的固定槽，及设在所述固定槽内的固定件，所述固定件用于与从所述穿孔中穿出的导丝固定连接。In one of the embodiments, the buckle assembly further includes a fixing groove provided on the main body of the buckle, and a fixing piece arranged in the fixing groove, and the fixing piece is used for connecting with the through hole. The threaded guide wire secures the connection.

本发明还提供一种输送系统，包括管腔支架，还包括上述所述的输送装置。The present invention also provides a delivery system, including a lumen support, and the delivery device described above.

综上所述，实施本发明的一种输送装置及系统，具有以下有益效果：导丝接头可实现对导丝的精准定位，从而提高系统整体的定位精度。To sum up, implementing the delivery device and system of the present invention has the following beneficial effects: the guide wire connector can realize precise positioning of the guide wire, thereby improving the overall positioning accuracy of the system.

附图说明Description of drawings

下面将结合附图及实施例对本发明作进一步说明，附图中：The present invention will be further described below in conjunction with accompanying drawing and embodiment, in the accompanying drawing:

图1是本发明提供的一种输送系统的示意图；Fig. 1 is a schematic diagram of a delivery system provided by the present invention;

图2是图1所示输送系统的管腔支架的示意图；Fig. 2 is a schematic diagram of the lumen support of the delivery system shown in Fig. 1;

图3是图1所示输送系统的输送装置的示意图；Fig. 3 is the schematic diagram of the conveying device of conveying system shown in Fig. 1;

图4是图3所示输送装置的鞘管组件的示意图；Figure 4 is a schematic diagram of the sheath tube assembly of the delivery device shown in Figure 3;

图5是图3所示鞘管组件的近端处的横截面图；Figure 5 is a cross-sectional view at the proximal end of the sheath assembly shown in Figure 3;

图6是图3所示输送装置的端头的第一种限位机构的示意图；Fig. 6 is a schematic diagram of the first limit mechanism of the end of the delivery device shown in Fig. 3;

图7是图3所示输送装置的端头的第二种限位机构的示意图；Fig. 7 is a schematic diagram of a second limit mechanism at the end of the delivery device shown in Fig. 3;

图8是图3所示输送装置的接头组件的爆炸图；Figure 8 is an exploded view of the connector assembly of the delivery device shown in Figure 3;

图9是图8所示接头组件的推管接头的截面图；Fig. 9 is a sectional view of the push tube joint of the joint assembly shown in Fig. 8;

图10是图8所示接头组件的推管接头上连接有连通管的立体图；Fig. 10 is a perspective view of a connecting pipe connected to the push pipe joint of the joint assembly shown in Fig. 8;

图11是图8所示接头组件的推管接头、导杆接头与导杆的示意图；Fig. 11 is a schematic diagram of the push pipe joint, the guide rod joint and the guide rod of the joint assembly shown in Fig. 8;

图12是图11所示导杆的爆炸图；Figure 12 is an exploded view of the guide rod shown in Figure 11;

图13是图11所示推管接头、导杆接头与导杆连接的截面图；Fig. 13 is a sectional view of the connection between the push pipe joint, the guide rod joint and the guide rod shown in Fig. 11;

图14是图8所示导杆接头与导丝接头的示意图；Fig. 14 is a schematic diagram of the guide rod joint and the guide wire joint shown in Fig. 8;

图15是图14所示导杆接头与导丝接头连接的示意图；Fig. 15 is a schematic diagram of the connection between the guide rod joint and the guide wire joint shown in Fig. 14;

图16是图8所示导丝接头的爆炸图；Figure 16 is an exploded view of the guide wire connector shown in Figure 8;

图17是图16所示导丝接头的导丝定位机构的截面图；Fig. 17 is a cross-sectional view of the guide wire positioning mechanism of the guide wire connector shown in Fig. 16;

图18是图17所示导丝定位机构的爆炸图；Fig. 18 is an exploded view of the guide wire positioning mechanism shown in Fig. 17;

图19是图18所示导丝定位机构的拉扣组件的示意图。Fig. 19 is a schematic diagram of the pull button assembly of the guide wire positioning mechanism shown in Fig. 18 .

具体实施方式Detailed ways

为使本发明的上述目的、特征和优点能够更加明显易懂，下面结合附图对本发明的具体实施方式做详细的说明。在下面的描述中阐述了很多具体细节以便于充分理解本发明。但是本发明能够以很多不同于在此描述的其它方式来实施，本领域技术人员可以在不违背本发明内涵的情况下做类似改进，因此本发明不受下面公开的具体实施的限制。In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific implementations disclosed below.

需要说明的是，当元件被称为“固定于”或“设置于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。本文所使用的术语“垂直的”、“水平的”、“左”、“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施方式。It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration only and are not intended to represent the only embodiments.

除非另有定义，本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施方式的目的，不是旨在于限制本发明。本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terminology used herein in the description of the present invention is only for the purpose of describing specific embodiments, and is not intended to limit the present invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

在介入医疗领域，通常定义器械距操作者近的一端为近端，距操作者远的一端为远端。In the field of interventional medicine, the end of the instrument that is closest to the operator is usually defined as the proximal end, and the end that is far from the operator is the distal end.

请参阅图1，本发明提供了一种输送系统500，包括管腔支架100，以及与该管腔支架100配合的输送装置300。Referring to FIG. 1 , the present invention provides adelivery system 500 , including alumen stent 100 and adelivery device 300 matched with thelumen stent 100 .

管腔支架100包括裸支架101，以及连接在裸支架101上的覆膜102。管腔支架100为中空的管腔结构，管腔支架100的管腔构成血流流通的通道。Thelumen stent 100 includes abare stent 101 and amembrane 102 connected to thebare stent 101 . Thelumen stent 100 is a hollow lumen structure, and the lumen of thelumen stent 100 constitutes a channel for blood flow.

其中，裸支架101采用具有良好生物相容性的材料制成，如镍钛、不锈钢等材料。覆膜102采用具有良好生物相容性的高分子材料制成，如PTFE、FEP、PET等。裸支架101包括多圈波形环状物1011，每圈波形环状物1011包括多个波峰、多个波谷及多个分别连接相邻波峰与波谷的连接杆，多圈波形环状物1011从近端到远端依次排布，优选为平行间隔排布。波形环状物1011为闭合圆柱状结构，多圈波形环状物1011间可以具有相同或相似的波形形状，例如，波形环状物1011可以是Z形波、M形波、V形波、正弦型波结构、或其它可径向压缩为很小直径的结构等。可以理解的是，本实施例并不限定波形环状物1011的具体结构，波形环状物1011的波形可以根据需要设置，同时每圈波形环状物1011中的波形个数以及波形高度均可根据需要设置。实际制备中，可采用镍钛丝编织或镍钛管切割定型形成裸支架101，然后在裸支架101表面通过缝合或高温加压等方式将覆膜102固定在裸支架101上。Wherein, thebare stent 101 is made of materials with good biocompatibility, such as nickel-titanium, stainless steel and other materials. The coveringfilm 102 is made of high molecular material with good biocompatibility, such as PTFE, FEP, PET and so on. Thebare stent 101 includes a multi-turn wave-shaped ring 1011, and each wave-shaped ring 1011 includes a plurality of crests, a plurality of troughs, and a plurality of connecting rods respectively connecting adjacent peaks and troughs, and the multi-turn wave-shaped ring 1011 is Arranged in sequence from end to distal end, preferably in parallel and spaced arrangement. The wave-shaped ring 1011 is a closed cylindrical structure, and the multi-turn wave-shaped rings 1011 can have the same or similar waveform shapes. For example, the wave-shaped ring 1011 can be a Z-shaped wave, an M-shaped wave, a V-shaped wave, or a sinusoidal wave. wave structure, or other structures that can be radially compressed to a small diameter, etc. It can be understood that this embodiment does not limit the specific structure of thewaveform ring 1011, the waveform of thewaveform ring 1011 can be set as required, and the number of waveforms and the height of the waveform in eachwaveform ring 1011 can be Set as desired. In actual preparation, thebare stent 101 can be formed by braiding nickel-titanium wire or cutting and shaping the nickel-titanium tube, and then themembrane 102 is fixed on thebare stent 101 by suturing or high-temperature pressure on the surface of thebare stent 101 .

请参阅图2，管腔支架100包括管状主体11，以及连接在管状主体11上的半释放装置200。半释放装置200包括限位导丝21，以及与限位导丝21活动连接、对管状主体11进行周向约束的束缚单元20。当管腔支架100从输送装置300中释放后，在半释放装置200的约束下，管腔支架100处于半释放状态，此时管腔支架100与血管壁不贴合，操作者仍可对管腔支架100的轴向和周向位置进行调整，待定位准确后，再将限位导丝21与束缚单元20分离，使半释放装置200的约束解除，从而使管腔支架100展开贴壁。Referring to FIG. 2 , theendoluminal stent 100 includes atubular body 11 and ahalf release device 200 connected to thetubular body 11 . The half-releasingdevice 200 includes a position-limitingguide wire 21 , and a bindingunit 20 that is movably connected with the position-limitingguide wire 21 and constrains thetubular body 11 in a circumferential direction. After theendoluminal stent 100 is released from thedelivery device 300, under the constraint of the half-release device 200, theendoluminal stent 100 is in a half-release state. The axial and circumferential positions of theluminal stent 100 are adjusted. After the positioning is accurate, the position-limitingguide wire 21 is separated from therestraint unit 20 to release the restraint of the half-release device 200 , so that theluminal stent 100 is deployed to adhere to the wall.

管状主体11上连接有至少一个与该管状主体11连通的分支10，该分支10可以为内分支，也可以为外分支。至少一个分支10内设置有预置导丝15，预置导丝15从分支10内贯穿。当输送装置300撤出体外后，预置导丝15仍留在分支10内，此时可通过导丝抓捕器(未示出)从管状主体11的远端11a抓捕该预置导丝15，将预置导丝15的一端抓到体外，利用预置导丝15建立从体外至分支10的血管通道。然后通过此通道，使延长支架(未示出)的一端套接至分支10内，使延长支架的另一端位于分支血管内。在图2所示的实施例中，分支10包括四个，分别为两个内分支，两个外分支，两个内分支内分别设置有预置导丝15。The tubularmain body 11 is connected with at least onebranch 10 communicating with the tubularmain body 11, and thebranch 10 can be an inner branch or an outer branch. At least onebranch 10 is provided with apreset guide wire 15 , and thepreset guide wire 15 passes through thebranch 10 . After thedelivery device 300 is withdrawn from the body, thepre-set guide wire 15 remains in thebranch 10. At this time, the pre-set guide wire can be captured from thedistal end 11a of the tubularmain body 11 by a guide wire grabber (not shown). 15. Grasp one end of thepreset guide wire 15 outside the body, and use thepreset guide wire 15 to establish a blood vessel channel from the outside of the body to thebranch 10 . Then through this channel, one end of the extension stent (not shown) is sleeved into thebranch 10, and the other end of the extension stent is located in the branch vessel. In the embodiment shown in FIG. 2 , thebranches 10 include four, namely two inner branches and two outer branches, and the two inner branches are respectively provided withpreset guide wires 15 .

请参阅图3，输送装置300包括鞘管组件31、端头32和手柄组件33。端头32连接在鞘管组件31的远端，端头32为中空结构，其内腔与鞘管组件31的管腔相连通，一起作为导丝通道。手柄组件33连接在鞘管组件31的近端，用于控制鞘管组件31的各部件的轴向移动，使管腔支架100从输送装置300中释放。Referring to FIG. 3 , thedelivery device 300 includes asheath assembly 31 , atip 32 and ahandle assembly 33 . Theterminal head 32 is connected to the distal end of thesheath tube assembly 31, and theend head 32 is a hollow structure, and its lumen communicates with the lumen of thesheath tube assembly 31 to serve as a guide wire channel. Thehandle assembly 33 is connected to the proximal end of thesheath assembly 31 , and is used to control the axial movement of each component of thesheath assembly 31 to release theendoluminal stent 100 from thedelivery device 300 .

请参阅图4，鞘管组件31包括内芯管311、外芯管312、推管313、鞘管314和固定锚315。Referring to FIG. 4 , thesheath tube assembly 31 includes aninner core tube 311 , anouter core tube 312 , apush tube 313 , asheath tube 314 and a fixinganchor 315 .

其中，端头32连接在内芯管311的远端，内芯管311的管腔与端头32的内腔相连通，一起作为导丝通道。外芯管312套在内芯管311外且可相对内芯管311轴向移动，固定锚315连接在外芯管312的远端，并跟随外芯管312一起轴向移动，端头32上设置有固定锚限位槽322，固定锚315可分离地连接在固定锚限位槽322内。推管313套在外芯管312外、并位于外芯管312与鞘管314之间，鞘管314套在推管313外且可相对推管313轴向移动，手柄组件33连接在鞘管314的近端。当鞘管314套在外芯管312外时，鞘管314与外芯管312之间形成一个环形腔体，压缩后的管腔支架100收容于该环形腔体内。请再次参阅图1，管腔支架100一端的裸支架101钩挂在固定锚315上，管腔支架100的另一端与推管313的远端端面相抵，使管腔支架100轴向压缩在固定锚315与推管313之间。由于管腔支架100整体被约束在鞘管314内，在到达病变位置前，管腔支架100与输送装置300可保持相对静止的状态，当装载有管腔支架100的输送装置300到达病变位置后，将管腔支架100释放。Wherein, theterminal head 32 is connected to the distal end of theinner core tube 311, and the lumen of theinner core tube 311 communicates with the lumen of theend head 32, and together serve as a guide wire channel. Theouter core tube 312 is sleeved outside theinner core tube 311 and can move axially relative to theinner core tube 311. Theanchor 315 is connected to the distal end of theouter core tube 312 and moves axially with theouter core tube 312. There is a fixedanchor limiting groove 322 , and the fixedanchor 315 is detachably connected in the fixedanchor limiting groove 322 . Thepush tube 313 is set outside theouter core tube 312 and is located between theouter core tube 312 and thesheath tube 314. Thesheath tube 314 is set outside thepush tube 313 and can move axially relative to thepush tube 313. Thehandle assembly 33 is connected to thesheath tube 314 the proximal end. When thesheath tube 314 is sleeved outside theouter core tube 312, an annular cavity is formed between thesheath tube 314 and theouter core tube 312, and thecompressed endoluminal stent 100 is accommodated in the annular cavity. Please refer to FIG. 1 again, thebare stent 101 at one end of theluminal stent 100 is hooked on theanchor 315, and the other end of theluminal stent 100 is against the distal end surface of thepush tube 313, so that theluminal stent 100 is axially compressed and fixed. Between theanchor 315 and thepush tube 313. Since theluminal stent 100 is constrained in thesheath 314 as a whole, before reaching the lesion site, theluminal stent 100 and thedelivery device 300 can remain in a relatively static state. When thedelivery device 300 loaded with theluminal stent 100 reaches the lesion site to release theendoluminal stent 100 .

手术时，首先，利用手柄组件33将鞘管314后撤，使管腔支架100从输送装置300中释放，此时在半释放装置200的约束下，管腔支架100处于半释放状态。其次，对管腔支架100的轴向和周向位置进行调整，待定位准确后，再将限位导丝21与束缚单元20分离，使半释放装置200的约束解除，从而使管腔支架100展开贴壁。然后，将外芯管312相对内芯管311后移，固定锚315跟随外芯管312一起后移，并逐渐与固定锚限位槽322分离，从而将裸支架101的约束解除，此时管腔支架100完全展开。最后，将输送装置300撤出体外，并通过导丝抓捕器(未示出)将分支10内的预置导丝15的一端抓到体外，利用预置导丝15建立从体外至分支10的血管通道，在分支10内套接延长支架。During the operation, firstly, thehandle assembly 33 is used to withdraw thesheath tube 314 to release theendoluminal stent 100 from thedelivery device 300 . At this time, under the constraint of the half-release device 200 , theendoluminal stent 100 is in a half-release state. Secondly, the axial and circumferential positions of theendoluminal stent 100 are adjusted, and after the positioning is accurate, the position-limitingguide wire 21 is separated from therestraint unit 20, so that the restraint of the half-releasingdevice 200 is released, so that theendoluminal stent 100 Expand the wall. Then, theouter core tube 312 is moved back relative to theinner core tube 311, and the fixinganchor 315 moves back together with theouter core tube 312, and gradually separates from the fixinganchor limiting groove 322, so that the constraint of thebare stent 101 is released.Lumen stent 100 is fully deployed. Finally, thedelivery device 300 is withdrawn from the body, and one end of thepreset guide wire 15 in thebranch 10 is caught out of the body by a guide wire grabber (not shown), and thepreset guide wire 15 is used to establish a connection from the outside of the body to thebranch 10. The vascular channel is sleeved with an extension stent in thebranch 10.

在实际手术过程中，鞘管组件31的远端部分进入人体血管，其远端需要有足够的柔顺性，而鞘管组件31的近端需要提供足够的支撑力，以减小管腔支架释放时所需的推动力。故，请参阅图5，鞘管组件31还包括支撑件316，支撑件316位于推管313内，且支撑件316的长度不长于推管313的长度，该支撑件316可以为金属管等材质较硬的管件。在图5所示的实施例中，支撑件316为中空管状结构，其固定在推管313的内壁上，支撑件316的近端延伸至推管313的近端，支撑件316的远端延伸至推管313的远端，支撑件316可通过胶水粘接或热熔等方式固定在推管313内。可以理解的是，本实施例并不限定支撑件316的具体结构，例如，在其它实施例中，支撑件316为呈细条状的实心的金属件，其固定在推管313内壁上。In the actual operation process, the distal part of thesheath tube assembly 31 enters the human blood vessel, and its distal end needs to have sufficient flexibility, while the proximal end of thesheath tube assembly 31 needs to provide sufficient supporting force to reduce the release of the lumen stent the driving force required. Therefore, please refer to Fig. 5, thesheath tube assembly 31 also includes asupport 316, thesupport 316 is located in thepush tube 313, and the length of thesupport 316 is not longer than the length of thepush tube 313, and thesupport 316 can be made of a metal tube or the like. Harder fittings. In the embodiment shown in Figure 5, thesupport member 316 is a hollow tubular structure, which is fixed on the inner wall of thepush tube 313, the proximal end of thesupport member 316 extends to the proximal end of thepush tube 313, and the distal end of thesupport member 316 extends To the distal end of thepush tube 313 , thesupport member 316 can be fixed in thepush tube 313 by means of glue bonding or hot melting. It can be understood that this embodiment does not limit the specific structure of thesupport member 316 , for example, in other embodiments, thesupport member 316 is a solid metal piece in the shape of a thin strip, which is fixed on the inner wall of thepush tube 313 .

推管313内设置有分别沿轴向贯穿的管腔通道3131与导丝通道3132。支撑件316固定在管腔通道3131的内壁上，外芯管312从管腔通道3131内穿设，限位导丝21或/和预置导丝15从导丝通道3132中穿设。在图5所示的实施例中，导丝通道3132包括三个，三个导丝通道3132中的两个供预置导丝15穿设，另一个供限位导丝21穿设。Thepush tube 313 is provided with alumen channel 3131 and aguide wire channel 3132 penetrating in the axial direction, respectively. Thesupport member 316 is fixed on the inner wall of thelumen channel 3131 , theouter core tube 312 passes through thelumen channel 3131 , and the position-limitingguide wire 21 or/and thepreset guide wire 15 passes through theguide wire channel 3132 . In the embodiment shown in FIG. 5 , there are threeguide wire channels 3132 , two of the threeguide wire channels 3132 are used for passing thepreset guide wire 15 , and the other is used for passing thelimit guide wire 21 .

其中，限位导丝21和/或预置导丝15可以为表面粗糙度较小、且与人体生物相容性较好的金属导丝，如镍钛丝等。为了不增大输送系统的整体轮廓尺寸，同时避免限位导丝21与预置导丝15受力弯折，限位导丝21与预置导丝15的丝径均为0.2mm～0.6mm。Wherein, the limitingguide wire 21 and/or thepreset guide wire 15 may be a metal guide wire with relatively small surface roughness and good biocompatibility with the human body, such as nickel-titanium wire. In order not to increase the overall outline size of the conveying system, and to avoid force bending of thelimit guide wire 21 and thepreset guide wire 15, the wire diameters of thelimit guide wire 21 and thepreset guide wire 15 are both 0.2 mm to 0.6 mm .

为了避免限位导丝21与预置导丝15的远端对血管造成损伤，限位导丝21与预置导丝15的近端段一般为较柔软的柔性段。但是，由于预置导丝15的近端段较柔软，在输送过程中，预置导丝15的近端段容易发生移位，若预置导丝15从裸支架101的波峰下方穿过裸支架101，当裸支架101展开贴壁后，会使预置导丝15挤压在裸支架101与血管壁之间，导致无法套接延长支架。In order to prevent the distal ends of the limitingguide wire 21 and thepreset guide wire 15 from causing damage to blood vessels, the proximal end sections of the limitingguide wire 21 and thepreset guide wire 15 are generally softer flexible sections. However, since the proximal section of thepreset guide wire 15 is relatively soft, the proximal section of thepreset guide wire 15 is prone to shift during delivery. For thestent 101, when thebare stent 101 is deployed and adhered to the wall, thepreset guide wire 15 will be squeezed between thebare stent 101 and the vessel wall, making it impossible to sleeve the extended stent.

请参阅图6，端头32上设置有限位机构321，限位导丝21和/或预置导丝15的前端可分离地连接至该限位机构321，在外力作用下，导丝与限位机构321可分离。组装时，使限位导丝21和/或预置导丝15从管腔支架100的前端穿出，并使限位导丝21和/或预置导丝15的前端连接至该限位机构321，确保在输送过程中，限位导丝21和/或预置导丝15的前端始终连接在该限位机构321上。在图6所示的实施例中，限位机构321为限位槽，该限位槽沿端头32的轴向延伸至端头32的近端，限位导丝21和/或预置导丝15收容在该限位槽内、并与限位槽过盈配合，在外力作用下，导丝与限位槽可分离。可以理解的是，本实施例并不限定限位槽的具体结构，例如，在图7所示的实施例中，限位槽大致为U形槽，限位导丝21和/或预置导丝15的前端延伸至U形槽的弯曲段，避免导丝从限位槽中脱落，限位导丝21和/或预置导丝15与U形槽也可以过盈配合，进一步避免导丝从限位槽中脱落。Please refer to FIG. 6 , alimit mechanism 321 is arranged on theend 32, and the front end of thelimit guide wire 21 and/or thepreset guide wire 15 is detachably connected to thelimit mechanism 321. Thebit mechanism 321 is detachable. When assembling, thelimit guide wire 21 and/or thepreset guide wire 15 are passed through the front end of thelumen support 100, and the front end of thelimit guide wire 21 and/or thepreset guide wire 15 is connected to thelimit mechanism 321. Ensure that the front end of thelimit guide wire 21 and/or thepreset guide wire 15 is always connected to thelimit mechanism 321 during delivery. In the embodiment shown in FIG. 6 , the limitingmechanism 321 is a limiting groove, and the limiting groove extends to the proximal end of the terminal 32 along the axial direction of the terminal 32, and the limitingguide wire 21 and/or the preset guide wire Thewire 15 is accommodated in the limiting groove and has an interference fit with the limiting groove. Under the action of external force, the guide wire and the limiting groove can be separated. It can be understood that this embodiment does not limit the specific structure of the limiting groove. For example, in the embodiment shown in FIG. The front end of thewire 15 extends to the curved section of the U-shaped groove to prevent the guide wire from falling off from the limiting groove. The limitingguide wire 21 and/or thepreset guide wire 15 can also be interference fit with the U-shaped groove to further prevent the guide wire from falling out of the limiting groove. Fall out of the limiting groove.

还可以理解的是，本实施例并不限定限位机构321的具体结构，只要确保限位导丝21和/或预置导丝15能被束缚在限位机构321上，且在外力作用下能使导丝与限位机构321脱离即可。例如，在其他实施例中，限位机构321为由两个弹片组成的夹持机构，两个弹片设置在端头上，导丝夹持在两个弹片之间，在外力作用下，使导丝从两个弹片中脱离。It can also be understood that this embodiment does not limit the specific structure of the limitingmechanism 321, as long as it is ensured that the limitingguide wire 21 and/or thepreset guide wire 15 can be bound on the limitingmechanism 321, and under the action of external force It only needs to be able to disengage the guide wire from thelimit mechanism 321 . For example, in other embodiments, thelimit mechanism 321 is a clamping mechanism composed of two elastic pieces, the two elastic pieces are arranged on the end, the guide wire is clamped between the two elastic pieces, and under the action of external force, the guide wire The wire breaks away from the two shrapnel.

请再次参阅图3，手柄组件33包括固定手柄331、滑动手柄332、导杆333、锁止组件334、连通管335及接头组件336。Please refer to FIG. 3 again, thehandle assembly 33 includes a fixedhandle 331 , a slidinghandle 332 , aguide rod 333 , a lockingassembly 334 , a connectingpipe 335 and ajoint assembly 336 .

其中，接头组件336连接至鞘管组件31的近端，连通管335连接在接头组件336上、并与鞘管组件31的内腔相连通。导杆333的近端与接头组件336固定连接，固定手柄331固定在导杆333的远端。滑动手柄332可滑动的连接在导杆333上，滑动手柄332与鞘管314固定连接，鞘管314跟随滑动手柄332一起沿轴向移动。锁止组件334分别与滑动手柄332及导杆333连接，用于控制滑动手柄332与导杆333之间沿轴向的相对移动。当锁止组件334处于锁定状态时，滑动手柄332与导杆333不可相对移动，当锁止组件334处于非锁定状态时，滑动手柄332与导杆333可相对移动。Wherein, thejoint assembly 336 is connected to the proximal end of thesheath tube assembly 31 , and thecommunication tube 335 is connected to thejoint assembly 336 and communicated with the lumen of thesheath tube assembly 31 . The proximal end of theguide rod 333 is fixedly connected with thejoint assembly 336 , and the fixedhandle 331 is fixed on the distal end of theguide rod 333 . The slidinghandle 332 is slidably connected to theguide rod 333 , the slidinghandle 332 is fixedly connected with thesheath tube 314 , and thesheath tube 314 moves axially along with the slidinghandle 332 . The lockingassembly 334 is respectively connected with the slidinghandle 332 and theguide rod 333 for controlling the relative movement between the slidinghandle 332 and theguide rod 333 along the axial direction. When the lockingassembly 334 is in a locked state, the slidinghandle 332 and theguide rod 333 cannot move relative to each other; when the lockingassembly 334 is in an unlocked state, the slidinghandle 332 and the guidingrod 333 can move relatively.

在图3所示的实施例中，导杆333与滑动手柄332通过螺纹结构可滑动的连接。可以理解的是，本实施例并不限定导杆333与滑动手柄332间滑动连接的具体方式，只要能使二者相对滑动即可。例如，在其他实施例中，导杆333上设置有滑轨，滑动手柄332上设置有可滑动的连接在该滑轨内的滑块。In the embodiment shown in FIG. 3 , theguide rod 333 is slidably connected to the slidinghandle 332 through a thread structure. It can be understood that this embodiment does not limit the specific manner of sliding connection between theguide rod 333 and the slidinghandle 332, as long as the two can slide relative to each other. For example, in other embodiments, a slide rail is provided on theguide rod 333 , and a slide block slidably connected in the slide rail is provided on theslide handle 332 .

请参阅图8，接头组件包括推管接头34、导杆接头35及导丝接头36。导杆接头35连接在导杆333的近端，推管接头34固定在导管接头35内，导丝接头36固定在导杆接头35外。推管接头34固定在推管313外，推管313内的限位导丝及预置导丝分别通过导丝接头3352延伸至手柄组件33外。Please refer to FIG. 8 , the joint assembly includes a push tube joint 34 , a guide rod joint 35 and a guide wire joint 36 . The guide rod joint 35 is connected to the proximal end of theguide rod 333 , the push tube joint 34 is fixed inside the catheter joint 35 , and the guide wire joint 36 is fixed outside the guide rod joint 35 . The push tube joint 34 is fixed outside thepush tube 313 , and the position-limiting guide wire and preset guide wire in thepush tube 313 respectively extend to the outside of thehandle assembly 33 through the guide wire joint 3352 .

请参阅图9，推管313内还设置有沿轴向分布的交换通道3133，交换通道3133与管腔通道3131及导丝通道3132相隔离、并与外界相连通。交换通道3133的远端延伸至推管313的远端，推管313上设置有使交换通道3133与外界连通的开口3134，操作者可通过交换通道3133向体内注入液体或气体等注入物，来保证输送系统的排水或排气功能。由于交换通道3133与管腔通道3131相互隔离，则交换通道3133与管腔通道3131内的支撑件316不会相互影响，在保证输送系统的排水或排气功能的同时，还可确保输送装置的近端具有足够的支撑力。Please refer to FIG. 9 , thepush tube 313 is also provided withexchange channels 3133 distributed along the axial direction. Theexchange channels 3133 are isolated from thelumen channel 3131 and theguide wire channel 3132 and communicated with the outside world. The far end of theexchange channel 3133 extends to the far end of thepush tube 313, and thepush tube 313 is provided with anopening 3134 that communicates theexchange channel 3133 with the outside world. The operator can inject liquid or gas into the body through theexchange channel 3133 to Guarantee the drainage or exhaust function of the conveying system. Since theexchange channel 3133 and thelumen channel 3131 are isolated from each other, theexchange channel 3133 and thesupport member 316 in thelumen channel 3131 will not interact with each other. While ensuring the drainage or exhaust function of the delivery system, the delivery device can also be ensured. Adequate support at the proximal end.

推管接头34大致为中空结构，其固定在推管313外，推管接头34上设置有与开口3134相连通的交换口341。请参阅图9和图10，连通管335的一端连接至推管接头34、并与交换口341相导通，另一端延伸至接头组件外。操作者可通过连通管335向交换通道3133内注入液体或气体等注入物。The push tube joint 34 is roughly hollow, and is fixed outside thepush tube 313 . The push tube joint 34 is provided with anexchange port 341 communicating with theopening 3134 . Please refer to FIG. 9 and FIG. 10 , one end of thecommunication tube 335 is connected to the push tube joint 34 and communicates with theexchange port 341 , and the other end extends out of the joint assembly. The operator can inject liquid or gas into theexchange channel 3133 through thecommunication tube 335 .

在图9所示的实施例中，推管接头34套设在推管313的近端外，交换通道3133沿轴向贯穿推管313的两端，开口3134设置在推管313的侧壁上，交换通道3133的近端填充有密封件343，避免注入物从推管313的近端流出，该密封件343可以为胶水或其他填充物。推管接头34上设置有与交换口341连通的环形凸台345，连通管335与该环形凸台345插接相连。为了使注入物平缓的进入交换通道3133，推管接头34的内壁设置有过渡槽342，过渡槽342位于开口3134与交换口341之间。为了避免注入物流入推管接头34与推管313之间的缝隙内，过渡槽342的槽口边缘与推管313之间填充有密封件343，该密封件343可以为胶水或其他填充物。为了方便加工，过渡槽342的近端延伸至推管接头34的近端，推管接头34的近端套设有压块344，压块344套设在过渡槽342与推管313之间用于密封过渡槽342与推管313，以避免注入物从过渡槽342的近端流出。In the embodiment shown in FIG. 9 , thepush tube connector 34 is sleeved outside the proximal end of thepush tube 313 , theexchange channel 3133 runs through both ends of thepush tube 313 in the axial direction, and theopening 3134 is arranged on the side wall of thepush tube 313 , the proximal end of theexchange channel 3133 is filled with a sealingmember 343 to prevent the injection from flowing out from the proximal end of thepush tube 313, and the sealingmember 343 can be glue or other fillers. The push pipe joint 34 is provided with anannular boss 345 communicating with theexchange port 341 , and thecommunication pipe 335 is plugged and connected with theannular boss 345 . In order to allow the injection to enter theexchange channel 3133 smoothly, the inner wall of the push pipe joint 34 is provided with atransition groove 342 , and thetransition groove 342 is located between theopening 3134 and theexchange port 341 . In order to prevent the injection from flowing into the gap between the push tube joint 34 and thepush tube 313, aseal 343 is filled between the notch edge of thetransition groove 342 and thepush tube 313, and theseal 343 can be glue or other fillers. In order to facilitate processing, the proximal end of thetransition groove 342 extends to the proximal end of the push tube joint 34, and the proximal end of the push tube joint 34 is sleeved with apressure block 344, which is sleeved between thetransition groove 342 and thepush tube 313. To seal thetransition groove 342 and thepush tube 313 to prevent the injection from flowing out from the proximal end of thetransition groove 342 .

可以理解的是，本实施例并不限定开口3134在推管313上的具体位置，只要能使交换通道3133与连通管335相导通即可。例如，在其它实施例中，开口3134还可以位于推管313的近端端面上，此时连通管335可直接插设至该开口3134内。It can be understood that this embodiment does not limit the specific position of theopening 3134 on thepush tube 313 , as long as theexchange channel 3133 can communicate with thecommunication tube 335 . For example, in other embodiments, theopening 3134 can also be located on the proximal end surface of thepush tube 313 , at this time, thecommunication tube 335 can be directly inserted into theopening 3134 .

请参阅图11，推管接头34套设在导杆333的近端内，导杆333的侧壁上设置有连通管固定件3331，连通管335穿过该连通管固定件3331与推管接头34连接。在图12所示的实施例中，导杆333大致为圆筒结构，该圆筒结构由两个半圆形的连接筒拼接组成，两个连接筒可以通过粘接或卡扣连接等方式拼接在一起。连通管固定件3331为U形槽结构，其开设在两个连接筒的连接处，连通管固定件3331的近端延伸至导杆333的近端，当推管接头34装配在导杆333内时，连通管335的侧壁抵接至连通管固定件3331的远端。Please refer to Fig. 11, the push pipe joint 34 is sleeved in the proximal end of theguide rod 333, and the side wall of theguide rod 333 is provided with a connectingpipe fixing part 3331, and the connectingpipe 335 passes through the connectingpipe fixing part 3331 and pushes the pipe joint 34 connections. In the embodiment shown in FIG. 12 , theguide rod 333 is roughly a cylindrical structure, and the cylindrical structure is composed of two semicircular connecting cylinders spliced together, and the two connecting cylinders can be spliced by bonding or buckle connection. together. The connectingtube fixing part 3331 is a U-shaped groove structure, which is set at the junction of the two connecting cylinders. The proximal end of the connectingtube fixing part 3331 extends to the proximal end of theguide rod 333. When the push tube joint 34 is assembled in theguide rod 333 At this time, the sidewall of thecommunication tube 335 abuts against the distal end of the communicationtube fixing member 3331 .

可以理解的是，本实施例并不限定连通管固定件3331的具体形状，只要能使连通管335穿过即可。例如，在其他实施例中，连通管固定件3331还可以为圆孔结构，连通管335穿过该连通管固定件3331与推管接头34上的交换口341连接。还可以理解的是，本实施例并不限定导杆333的具体结构，其还可以由多个连接筒拼接组成。It can be understood that, this embodiment does not limit the specific shape of the connectingtube fixing member 3331, as long as the connectingtube 335 can pass through. For example, in other embodiments, the connectingtube fixing part 3331 can also be a circular hole structure, and the connectingtube 335 passes through the connectingtube fixing part 3331 and is connected to theexchange port 341 on thepush tube connector 34 . It can also be understood that this embodiment does not limit the specific structure of theguide rod 333, which can also be formed by splicing a plurality of connecting cylinders.

请再次参阅图11，导杆接头35大致为中空结构，其套设在导杆333外。导杆接头35上设置有连通管定位件351，连通管335从该连通管定位件351中穿设。Please refer to FIG. 11 again, the guide rod joint 35 is generally a hollow structure, which is sheathed outside theguide rod 333 . A connectingtube positioning piece 351 is disposed on the guide rod joint 35 , and the connectingtube 335 passes through the connectingtube positioning piece 351 .

在图11所示的实施例中，连通管定位件351为U形槽结构，其远端延伸至导杆接头35的远端，当导杆接头35装配在导杆333上时，连通管335的侧壁抵接至连通管定位件351的近端。可以理解的是，本实施例并不限定连通管定位件351的具体形状，只要能使连通管335穿过即可。例如，在其他实施例中，连通管定位件351还可以为圆孔结构。In the embodiment shown in FIG. 11 , the connectingpipe positioning member 351 is a U-shaped groove structure, and its distal end extends to the distal end of the guide rod joint 35. When the guide rod joint 35 is assembled on theguide rod 333, the connectingpipe 335 The side wall of the connecting tube abuts against the proximal end of the connectingtube positioning member 351 . It can be understood that, this embodiment does not limit the specific shape of the connectingtube positioning member 351 , as long as the connectingtube 335 can pass through. For example, in other embodiments, the connectingtube positioning member 351 may also be a circular hole structure.

可以理解的是，由于连通管335连接在推管接头34上，若连通管335发生移位，则推管接头34及连接在推管接头34上的推管313会一起移位，不利于管腔支架的准确定位。本实施例通过使连通管335抵接至连通管定位件351的近端，并使连通管335抵接至连通管固定件3331的远端，可以对连通管335进行轴向定位，避免连通管335发生轴向移位。进一步的，为了避免连通管335的周向移位，连通管固定件3331或连通管定位件351沿周向的宽度与位于其间的连通管335的外径相同。It can be understood that since the connectingtube 335 is connected to the push tube joint 34, if the connectingtube 335 is displaced, the push tube joint 34 and thepush tube 313 connected to the push tube joint 34 will be displaced together, which is not conducive to Accurate positioning of lumen holders. In this embodiment, by abutting the connectingtube 335 against the proximal end of the connectingtube positioning part 351 and making the connectingtube 335 abut against the distal end of the connectingtube fixing part 3331, the connectingtube 335 can be axially positioned to prevent the connecting tube from 335 is axially displaced. Further, in order to avoid the circumferential displacement of thecommunication tube 335 , the circumferential width of the communicationtube fixing part 3331 or the communicationtube positioning part 351 is the same as the outer diameter of thecommunication tube 335 located therebetween.

由于导杆接头35套设在导杆333外，为了避免导杆接头35与导杆333发生相对移动，导杆接头35与导杆333之间设置有第一定位结构(未示出)。该第一定位结构可以包括设置在导杆接头35的内壁上的卡槽，以及设置在导杆333的外壁上的卡扣，当导杆接头35套设在导杆333外时，卡扣与卡槽扣合连接，避免导杆接头35与导杆333之间发生移位。可以理解的是，本实施例并不限定该第一定位结构的具体结构，只要能避免导杆接头35与导杆333发生相对移动即可。Since the guide rod joint 35 is sheathed outside theguide rod 333 , in order to avoid relative movement between the guide rod joint 35 and theguide rod 333 , a first positioning structure (not shown) is provided between the guide rod joint 35 and theguide rod 333 . The first positioning structure may include a slot provided on the inner wall of the guide rod joint 35, and a buckle provided on the outer wall of theguide rod 333. When the guide rod joint 35 is sleeved outside theguide rod 333, the buckle and The snap-fit connection of the slot prevents displacement between the guide rod joint 35 and theguide rod 333 . It can be understood that this embodiment does not limit the specific structure of the first positioning structure, as long as the relative movement between the guide rod joint 35 and theguide rod 333 can be avoided.

请参阅图13，导杆接头35的内壁凸置有环形卡台352，推管313从推管接头34、环形卡台352中穿设，并延伸至导杆接头35的近端或其近端附近。当导杆接头35套设在推管接头34外时，推管接头34的近端抵接至该环形卡台352，该环形卡台352不仅可以限制推管接头34的轴向移动，还可以支撑推管313。Please refer to FIG. 13 , the inner wall of the guide rod joint 35 is protruded with anannular clamping platform 352 , and thepush tube 313 passes through the push tube joint 34 and theannular clamping platform 352 , and extends to the proximal end of the guide rod joint 35 or its proximal end. nearby. When the guide rod joint 35 is sleeved outside the push tube joint 34, the proximal end of the push tube joint 34 abuts against theannular clamping platform 352, and theannular clamping platform 352 can not only limit the axial movement of the push tube joint 34, but also Pushtube 313 is supported.

请参阅图14、图15和图16，导丝接头36大致为中空结构，其套设在导杆接头35外，推管313与导丝接头36的内腔相连通。导丝接头36上设置有多个与其内腔相连通的穿孔365，从推管313的近端伸出的导丝(预置导丝15或限位导丝21)及外芯管312分别通过对应的穿孔365延伸至导丝接头36外。Please refer to FIG. 14 , FIG. 15 and FIG. 16 , the guide wire joint 36 is generally hollow, and it is sheathed outside the guide rod joint 35 , and thepush tube 313 communicates with the lumen of the guide wire joint 36 . The guide wire joint 36 is provided with a plurality ofperforations 365 communicating with its inner cavity, and the guide wire (presetguide wire 15 or limit guide wire 21) and theouter core tube 312 protruding from the proximal end of thepush tube 313 pass through the guide wire joint 36 respectively. The correspondingperforations 365 extend outside theguidewire adapter 36 .

为了方便操作人员对导丝及外芯管312进行移位，导丝接头36是内表面设置有导丝限位槽361和芯管限位槽362，从推管313的近端伸出的导丝通过导丝限位槽361从对应的穿孔365中穿出，从推管313的近端伸出的外芯管312通过芯管限位槽362从对应的穿孔365中穿出。In order to facilitate the operator to displace the guide wire and theouter core tube 312, the guide wire joint 36 is provided with a guidewire limiting groove 361 and a coretube limiting groove 362 on the inner surface. The wire passes through the guidewire limiting groove 361 and passes through the corresponding throughhole 365 , and theouter core tube 312 protruding from the proximal end of thepush tube 313 passes through the corresponding throughhole 365 through the coretube limiting groove 362 .

在图14、图15和图16所示的实施例中，推管313的近端延伸至导丝接头36内，导丝接头36内设置有一个芯管限位槽362，以及两个导丝限位槽361，两个预置导丝15分别安装在对应的导丝限位槽361内。芯管限位槽362沿外芯管312的轴向分布，两个导丝限位槽361大致呈弧形、分设在内芯管限位槽362的两侧。导丝限位槽361的近端处设置有导丝锁紧装置367，当导丝锁紧装置367锁紧时，导丝固定在导丝接头36内，当导丝锁紧装置367解锁时，导丝可相对导丝接头36移动。In the embodiment shown in Fig. 14, Fig. 15 and Fig. 16, the proximal end of thepush tube 313 extends into the guide wire joint 36, and the guide wire joint 36 is provided with a coretube limiting groove 362 and two guide wires Thelimit slot 361, the twopreset guide wires 15 are respectively installed in the corresponding guidewire limit slot 361. The coretube limiting grooves 362 are distributed along the axial direction of theouter core tube 312 , and the two guidingwire limiting grooves 361 are roughly arc-shaped and respectively arranged on both sides of the inner coretube limiting groove 362 . A guidewire locking device 367 is provided at the proximal end of the guidewire limiting groove 361. When the guidewire locking device 367 is locked, the guide wire is fixed in the guide wire joint 36. When the guidewire locking device 367 is unlocked, The guidewire is movable relative to theguidewire adapter 36 .

可以理解的是，导丝限位槽361的近端与远端之间的连线与推管313的纵向中心轴之间的夹角越大，导丝的推送阻力越大，不利于推进和拉出导丝，但是上述夹角越小，导丝越容易与导丝接头36近端侧的其他部件发生干涉。故，在本实施例中，当导丝接头36套设在导杆接头35外时，导丝限位槽361的近端与远端之间的连线与推管313的纵向中心轴之间的夹角为20°～40°。It can be understood that the greater the angle between the line between the proximal end and the distal end of the guidewire limiting groove 361 and the longitudinal central axis of thepush tube 313, the greater the push resistance of the guide wire, which is not conducive to advancing and Pull out the guide wire, but the smaller the included angle is, the easier it is for the guide wire to interfere with other components on the proximal side of theguide wire connector 36 . Therefore, in this embodiment, when the guide wire joint 36 is sleeved outside the guide rod joint 35, the line between the proximal end and the distal end of the guidewire limiting groove 361 and the longitudinal central axis of thepush tube 313 The included angle is 20°～40°.

还可以理解的是，由于导丝的硬度较低，若推管313的近端与导丝限位槽361的远端之间有间隙，则导丝在向前推进的过程中在该间隙处容易出现折弯，影响导丝的推进。故，在本实施例中，当导丝接头36套设在导杆接头35外时，推管313内的导丝通道3132的近端与导丝限位槽361的远端共轴线，推管313的近端端面与导丝限位槽361的远端端面位于同一平面内。It can also be understood that, due to the low hardness of the guide wire, if there is a gap between the proximal end of thepush tube 313 and the distal end of the guidewire limiting groove 361, the guide wire will be in the gap during the forward advancement process. It is easy to bend and affect the advancement of the guide wire. Therefore, in this embodiment, when the guide wire joint 36 is sleeved outside the guide rod joint 35, the proximal end of theguide wire channel 3132 in thepush tube 313 is coaxial with the distal end of the guidewire limiting groove 361, and the push tube The proximal end surface of 313 is located in the same plane as the distal end surface of the guidewire limiting groove 361 .

进一步的，导丝接头36与导杆接头35之间设置有第二定位结构，以避免导丝接头36与导杆接头35发生相对移动。Further, a second positioning structure is provided between the guide wire joint 36 and the guide rod joint 35 to avoid relative movement between the guide wire joint 36 and the guide rod joint 35 .

第二定位结构包括设置在导丝接头36的内壁上的第一定位槽363，以及设置在导杆接头35的外壁上、沿周向分布的第一定位筋353。当导丝接头36套设在导杆接头35外时，第一定位筋353卡持在第一定位槽363内，避免导丝接头36与导杆接头35发生轴向移动。第二定位结构还包括设置在导丝接头36的内壁上、沿轴向分布的第二定位筋364，以及设置在导杆接头35上的第二定位槽354，第二定位槽354为开设在第一定位筋353上的缺口。当导丝接头36套设在导杆接头35外时，第二定位筋364卡持在第二定位槽354内，避免导丝接头36与导杆接头35发生周向移动。组装时，只需将第二定位筋364插入第二定位槽354内，直至第一定位筋353卡持在第一定位槽363内，即可实现导丝接头36与导杆接头35的轴向和周向定位，操作简单，加工方便。可理解的是，本实施例并不限定第二定位结构的具体结构，只要能避免导丝接头36与导杆接头35发生相对移动即可。The second positioning structure includes afirst positioning groove 363 disposed on the inner wall of the guide wire joint 36 , andfirst positioning ribs 353 disposed on the outer wall of the guide rod joint 35 and distributed along the circumferential direction. When the guide wire joint 36 is sleeved outside the guide rod joint 35 , thefirst positioning rib 353 is held in thefirst positioning groove 363 to prevent axial movement between the guide wire joint 36 and the guide rod joint 35 . The second positioning structure also includes asecond positioning rib 364 arranged on the inner wall of the guide wire joint 36 and distributed along the axial direction, and asecond positioning groove 354 arranged on the guide rod joint 35, thesecond positioning groove 354 is opened in The gap on thefirst positioning rib 353 . When the guide wire joint 36 is sleeved outside the guide rod joint 35 , thesecond positioning rib 364 is held in thesecond positioning groove 354 to prevent the guide wire joint 36 and the guide rod joint 35 from moving in the circumferential direction. When assembling, it is only necessary to insert thesecond positioning rib 364 into thesecond positioning groove 354 until thefirst positioning rib 353 is clamped in thefirst positioning groove 363, and the axial alignment between the guide wire joint 36 and the guide rod joint 35 can be realized. And circumferential positioning, simple operation and convenient processing. It can be understood that the present embodiment does not limit the specific structure of the second positioning structure, as long as the relative movement between the guide wire joint 36 and the guide rod joint 35 can be avoided.

请参阅图16、图17和图18，导丝接头36上还设置有导丝定位机构37，从导丝接头36的穿孔365中穿出的导丝(限位导丝21或预置导丝15)与导丝定位机构37固定连接，导丝定位机构37使导丝固定在导丝接头36上，避免导丝在输送过程中发生移位。Referring to Fig. 16, Fig. 17 and Fig. 18, a guidewire positioning mechanism 37 is also provided on the guide wire joint 36, and the guide wire (limitingguide wire 21 or preset guide wire 21) passing through theperforation 365 of the guide wire joint 36 15) It is fixedly connected with the guidewire positioning mechanism 37, and the guidewire positioning mechanism 37 fixes the guide wire on the guide wire joint 36 to prevent the guide wire from shifting during transportation.

在图18所示的实施例中，导丝接头36的外表面设置有容纳槽366，导丝定位机构37安装在容纳槽366内。导丝定位机构37包括拉扣组件371，以及对拉扣组件371进行限位的拉扣定位组件372，导丝固定在拉扣组件371上，拉扣组件371可拆卸的连接在拉扣定位组件372上。In the embodiment shown in FIG. 18 , the outer surface of theguide wire connector 36 is provided with a receivinggroove 366 , and the guidewire positioning mechanism 37 is installed in the receivinggroove 366 . The guidewire positioning mechanism 37 includes abuckle assembly 371, and abuckle positioning assembly 372 for limiting thebuckle assembly 371. The guide wire is fixed on thebuckle assembly 371, and thebuckle assembly 371 is detachably connected to the buckle positioning assembly. 372 on.

拉扣组件371包括拉扣主体3711，及连接在拉扣主体3711上的拉环3712。限位导丝21从穿孔365中穿出后与拉扣主体3711固定连接，操作者的手指可伸入拉环3712内，将拉扣组件371从拉扣定位组件372中拉出。Thebuckle assembly 371 includes abuckle body 3711 and apull ring 3712 connected to thebuckle body 3711 . The position-limitingguide wire 21 passes through the throughhole 365 and is fixedly connected to the bucklemain body 3711 . The operator's finger can be inserted into thepull ring 3712 to pull thebuckle assembly 371 out of thebuckle positioning assembly 372 .

请参阅图18和图19，拉扣主体3711包括第一扣合部3713、连接部3714及第二扣合部3715。第一扣合部3713为平板状，其大致平行于容纳槽366的槽底平面。连接部3714的一端连接在第一扣合部3713上，另一端朝远离容纳槽366的一侧延伸，拉环3713固定在连接部3714的另一端，使拉环3713与容纳槽的槽底具有一定距离，方便操作者将手指伸入拉环3713内。第二扣合部3715的固定在连接部3714的另一端，并朝靠近容纳槽366的一侧延伸，第二扣合部3715为平板状，其大致沿垂直于容纳槽366的槽底方向延伸，第二扣合部3715上设置有卡槽结构。Please refer to FIG. 18 and FIG. 19 , thebuckle body 3711 includes afirst fastening portion 3713 , a connectingportion 3714 and asecond fastening portion 3715 . Thefirst fastening portion 3713 is flat and substantially parallel to the bottom plane of the receivinggroove 366 . One end of the connectingpart 3714 is connected to thefirst fastening part 3713, and the other end extends toward the side away from the receivinggroove 366. Thepull ring 3713 is fixed on the other end of the connectingpart 3714, so that thepull ring 3713 and the groove bottom of the receiving groove have a A certain distance is convenient for the operator to put his finger into thepull ring 3713 . Thesecond fastening part 3715 is fixed on the other end of the connectingpart 3714 and extends toward the side close to the receivinggroove 366. Thesecond fastening part 3715 is flat and extends approximately perpendicular to the direction of the bottom of the receivinggroove 366. , thesecond fastening portion 3715 is provided with a card slot structure.

拉扣定位组件372包括第一定位件3721和第二定位件3722。第一定位件3721大致为平板状，其固定在容纳槽366的侧壁上，第二定位件3722上设置有卡扣结构，其固定在容纳槽366的槽底。当拉扣组件371安装在容纳槽366内时，第一扣合部3713位于第一定位件3721的下方、并抵接至容纳槽366的侧壁，第二定位件3722的卡扣结构与第二扣合部3715上的卡槽结构扣合连接，从而使拉扣组件371被限制在导丝接头36上。Thesnap positioning component 372 includes afirst positioning member 3721 and asecond positioning member 3722 . Thefirst positioning member 3721 is roughly flat and fixed on the side wall of the receivinggroove 366 . Thesecond positioning member 3722 is provided with a buckle structure, which is fixed on the bottom of the receivinggroove 366 . When thebuckle assembly 371 is installed in the receivinggroove 366, thefirst fastening portion 3713 is located under thefirst positioning member 3721 and abuts against the side wall of the receivinggroove 366, and the buckle structure of thesecond positioning member 3722 is compatible with thefirst positioning member 3721. The slot structure on the twofastening parts 3715 is fastened and connected, so that thepull buckle assembly 371 is restricted on theguide wire connector 36 .

进一步的，拉扣组件371还包括连接在拉扣主体3711上的固定槽374，及设在固定槽374内的固定件375。装配时，将限位导丝21固定在固定件375上，再将固定件375装配在固定槽374内，使固定件375固定安装在固定槽374内。由于导丝的丝径较小，不方便直接将导丝固定在拉扣组件371上，通过上述固定槽与固定件的结构，可以增加导丝与拉扣组件371的连接稳定性。Further, thebuckle assembly 371 also includes a fixingslot 374 connected to the bucklemain body 3711 , and afixing piece 375 disposed in the fixingslot 374 . When assembling, the position-limitingguide wire 21 is fixed on the fixingpiece 375, and then the fixingpiece 375 is assembled in the fixinggroove 374, so that the fixingpiece 375 is fixedly installed in the fixinggroove 374. Since the wire diameter of the guide wire is small, it is inconvenient to directly fix the guide wire on thebuckle assembly 371 . Through the structure of the fixing groove and the fixing piece, the connection stability between the guide wire and thebuckle assembly 371 can be increased.

具体的，固定件375大致为圆柱体机构，固定件375的侧壁上设置有沿径向贯穿的第一导引通道3751，固定槽374的侧壁上设置有与第一导引通道3751相连通的第二导引通道3741。装配时，使导丝的近端穿过第一导引通道3751与第二导引通道3741，将导丝固定在固定件375上。Specifically, the fixingpart 375 is roughly a cylindrical structure, the side wall of the fixingpart 375 is provided with afirst guiding channel 3751 penetrating in the radial direction, and the side wall of the fixinggroove 374 is provided with a channel connected to thefirst guiding channel 3751. Thesecond guide channel 3741 that passes through. During assembly, the proximal end of the guide wire is passed through thefirst guide channel 3751 and thesecond guide channel 3741 , and the guide wire is fixed on the fixingmember 375 .

可以理解的是，在其它实施例中，导丝接头36上还可以不设置容纳槽366，导丝定位机构37直接装配在导丝接头36的外壁。还可以理解的是，本实施例并不限定导丝定位机构37的具体结构，在其它实施例中，导丝定位机构37还可以为其他结构，只要能对导丝进行限位即可。It can be understood that, in other embodiments, the receivinggroove 366 may not be provided on the guide wire joint 36 , and the guidewire positioning mechanism 37 is directly assembled on the outer wall of the guide wire joint 36 . It can also be understood that this embodiment does not limit the specific structure of the guidewire positioning mechanism 37, and in other embodiments, the guidewire positioning mechanism 37 can also have other structures, as long as it can limit the position of the guide wire.

以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。The various technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the various technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。The above-mentioned embodiments only express several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but should not be construed as limiting the patent scope of the invention. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims (10)

1. The utility model provides a conveying device, its characterized in that includes the sheath pipe subassembly, and connects the handle components of sheath pipe subassembly near-end, be provided with the seal wire passageway that runs through along the axial in the sheath pipe subassembly, handle components includes the seal wire joint, be provided with on the seal wire joint a plurality of with the perforation of seal wire passageway intercommunication.

2. The delivery device according to claim 1, wherein the sheath assembly comprises a push tube, the guide wire channel is disposed in the push tube, a guide wire limit groove is disposed in the guide wire joint and is respectively communicated with the guide wire channel and the perforation for the guide wire to pass through, and an included angle between a connecting line between the proximal end and the distal end of the guide wire limit groove and a longitudinal central axis of the push tube is 20-40 °.

3. The delivery device of claim 1, wherein the sheath assembly comprises a push tube, the guide wire channel is disposed in the push tube, a proximal end of the guide wire channel is coaxial with a distal end of the guide wire limiting groove, and a distal end surface of the guide wire limiting groove and a proximal end section surface of the push tube are in the same plane.

4. The delivery device of claim 1, wherein a guidewire positioning mechanism is disposed on the guidewire interface.

5. The delivery device according to claim 4, wherein the guide wire positioning mechanism comprises a pull tab assembly for fixedly connecting with the guide wire passing through the perforation and a pull tab positioning assembly for limiting the pull tab assembly, the pull tab positioning assembly is arranged on the outer surface of the guide wire connector, and the pull tab assembly is detachably connected to the pull tab positioning assembly.

6. The delivery device of claim 5, wherein an outer surface of the guidewire connector is provided with a receiving groove, the tab positioning assembly being mounted within the receiving groove.

7. The delivery device of claim 5, wherein the tab assembly comprises a tab body for secure connection to a guidewire, and a pull ring connected to the tab body.

8. The delivery device of claim 7, wherein the tab body comprises a first engagement portion, a connecting portion, and a second engagement portion, wherein one end of the connecting portion is connected to the first engagement portion, the other end of the connecting portion extends toward a side away from the outer surface of the wire guide connector, the second engagement portion is connected to the other end of the connecting portion and extends toward a side close to the outer surface of the wire guide connector, and the tab is connected to the other end of the connecting portion.

9. The delivery device of claim 7, wherein the tab assembly further comprises a retaining groove formed in the tab body, and a securing member disposed in the retaining groove for securing a guidewire extending through the puncture.

10. A delivery system comprising a luminal stent further comprising a delivery device as claimed in any one of claims 1 to 9.

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