技术领域Technical Field
本发明属于医疗器械领域，尤指一种脉冲消融夹持装置。The invention belongs to the field of medical devices, and in particular relates to a pulse ablation clamping device.
背景技术Background Art
房颤是一种心律失常，伴有不协调的心房电活动，从而导致无效的心房收缩，临床上能引起心律失常、脑卒中、心力衰竭、甚至致命性心脏栓塞等各种严重疾病。Atrial fibrillation is a cardiac arrhythmia accompanied by uncoordinated atrial electrical activity, which leads to ineffective atrial contraction. Clinically, it can cause various serious diseases such as arrhythmia, stroke, heart failure, and even fatal cardiac embolism.
肺静脉由于肺静脉肌袖的存在，而成为引起房颤的主要病因。肺静脉的内膜和外膜之间有心肌细胞集落，由于形成心肌袖的细胞与心房肌的起源不同，电生理特也不同，因此会形成异常激动的基质而导致房颤。The pulmonary veins are the main cause of atrial fibrillation due to the presence of pulmonary vein sleeves. There are colonies of myocardial cells between the inner and outer membranes of the pulmonary veins. Since the cells that form the myocardial sleeves have different origins from the atrial muscles and have different electrophysiological characteristics, they will form an abnormally excited matrix and cause atrial fibrillation.
房颤的晚期会导致心衰，心衰作为一种不可治愈的疾病，时刻威胁着患者生命。影响心衰的原因有很多，通过导管对内脏大神经进行单方面消融，从而使交感神经系统恢复正常，进而内脏回归正常收缩，使人体内血液重新得到分配，心肺压力正常化，并最终减少心力衰竭症状开发出一种全新治疗心衰方法。在神经治疗的过程中保护内壁，并将更多有效内容传递到血管外壁神经上。The late stage of atrial fibrillation can lead to heart failure, which is an incurable disease and threatens the patient's life at all times. There are many reasons that affect heart failure. Through unilateral ablation of the visceral nerves through catheters, the sympathetic nervous system can be restored to normal, and then the viscera can return to normal contraction, so that the blood in the human body can be redistributed, the cardiopulmonary pressure can be normalized, and finally the symptoms of heart failure can be reduced. A new method for treating heart failure has been developed. During the process of nerve treatment, the inner wall is protected and more effective content is delivered to the nerves on the outer wall of the blood vessel.
现有技术中，多数为射频消融，会有大量的热产生，对病变组织没有选择性，会造成周边组织损伤。而治疗过程中，由于肺静脉口在挤压状态下呈一定厚度，在进行治疗时不易把控力度，力度过大对组织有机械损伤，力度过小消融电极未能贴靠完全，从而导致消融治疗不彻底。In the existing technology, most of them are radiofrequency ablations, which will generate a lot of heat, have no selectivity for the diseased tissue, and cause damage to the surrounding tissue. During the treatment process, because the pulmonary vein opening is of a certain thickness under the squeeze state, it is difficult to control the force during the treatment. Too much force will cause mechanical damage to the tissue, and too little force will cause the ablation electrode to fail to completely stick to it, resulting in incomplete ablation treatment.
发明内容Summary of the invention
本发明的目的通过采用将消融夹钳之间的间距设置成一定距离的方式，在消融时，消融夹钳之间的距离与肺静脉口在挤压状态下的厚度相接近，从而有效避免了消融夹钳之间的间距过小或过大造成对组织的机械损伤或消融夹钳上的消融电极未能贴靠完全，导致消融治疗不成功。The purpose of the present invention is to set the spacing between the ablation clamps to a certain distance so that during ablation, the distance between the ablation clamps is close to the thickness of the pulmonary vein orifice in a squeezed state, thereby effectively avoiding mechanical damage to the tissue caused by the spacing between the ablation clamps being too small or too large, or the ablation electrodes on the ablation clamps failing to fully adhere, resulting in unsuccessful ablation treatment.
本发明通过以下技术方案来实现上述目的：The present invention achieves the above-mentioned purpose through the following technical solutions:
一种脉冲消融夹持装置，主要包括：A pulse ablation clamping device, mainly comprising:
固定套管，其内设有第一通道，所述固定套管的远端设有第一消融夹钳，所述第一消融夹钳上设有若干第一消融电极；A fixed sleeve having a first channel therein, a first ablation clamp disposed at a distal end of the fixed sleeve, and a plurality of first ablation electrodes disposed on the first ablation clamp;
推杆，设置于所述固定套管的所述第一通道内，可沿所述第一通道轴向移动，所述推杆的远端设有与所述第一消融夹钳相对应的第二消融夹钳，所述第二消融夹钳上设有与第一消融电极对应的若干第二消融电极；A push rod is disposed in the first channel of the fixed sleeve and can move axially along the first channel, a second ablation clamp corresponding to the first ablation clamp is disposed at the distal end of the push rod, and a plurality of second ablation electrodes corresponding to the first ablation electrodes are disposed on the second ablation clamp;
手柄壳体，具有握持部，所述手柄壳体内部设有容纳腔，所述固定套管与所述手柄壳体固定连接，所述推杆的近端穿出所述固定套管的近端并置于所述手柄壳体的容纳腔内；A handle housing having a grip portion, a receiving cavity being provided inside the handle housing, the fixed sleeve being fixedly connected to the handle housing, and the proximal end of the push rod passing through the proximal end of the fixed sleeve and being placed in the receiving cavity of the handle housing;
按压柱塞，具有自由端和固定端，与所述推杆同轴设置，所述按压柱塞的自由端置于所述手柄壳体外侧，所述按压柱塞的固定端置于所述手柄壳体的容纳腔内，其中，所述按压柱塞的固定端与所述推杆的近端进行弹性连接；A pressing plunger having a free end and a fixed end, and being coaxially arranged with the push rod, wherein the free end of the pressing plunger is placed outside the handle housing, and the fixed end of the pressing plunger is placed in the accommodating cavity of the handle housing, wherein the fixed end of the pressing plunger is elastically connected to the proximal end of the push rod;
限位结构，对所述按压柱塞进行进行轴向限位，以使通过移动所述按压柱塞能够使所述第二消融夹钳到达预设位置。The limiting structure axially limits the pressing plunger so that the second ablation clamp can reach a preset position by moving the pressing plunger.
在一些实施方式中，所述限位结构包括与所述手柄壳体活动连接的卡接凸台以及设置于所述按压柱塞上的卡接凹槽，或位于所述手柄壳体上的卡接凹槽以及位于所述按压柱塞上的卡接凸台，当所述按压柱塞移动至预设位置，所述卡接凸台与所述卡接凹槽卡接配合，以对所述推杆位置进行固定。In some embodiments, the limiting structure includes a snap-fitting boss movably connected to the handle housing and a snap-fitting groove arranged on the pressing plunger, or a snap-fitting groove located on the handle housing and a snap-fitting boss located on the pressing plunger. When the pressing plunger moves to a preset position, the snap-fitting boss snaps into engagement with the snap-fitting groove to fix the position of the push rod.
在一些实施方式中，还包括复位结构，所述复位结构包括复位按钮、复位连杆以及第一弹性元件，所述复位连杆一端连接于所述卡接凸台，另一端穿过所述手柄壳体至外侧连接于所述复位按钮，所述第一弹性元件一端抵接于所述手柄壳体内壁，另一端抵接于所述按压柱塞侧壁，所述第二消融夹钳处于初始位置时，所述第一弹性元件处于压缩状态，当所述第二消融夹钳处于预设位置时，所述第一弹性元件将所述卡接凸台弹出并卡接至所述卡接凹槽。In some embodiments, a reset structure is also included, which includes a reset button, a reset link and a first elastic element. One end of the reset link is connected to the clamping boss, and the other end passes through the handle shell to the outside and is connected to the reset button. One end of the first elastic element abuts against the inner wall of the handle shell, and the other end abuts against the side wall of the pressing plunger. When the second ablation clamp is in the initial position, the first elastic element is in a compressed state. When the second ablation clamp is in the preset position, the first elastic element pops out the clamping boss and clamps it to the clamping groove.
在一些实施方式中，所述按压柱塞上设置第二滑槽，所述复位连杆穿过所述第二滑槽连接于所述卡接凸台，所述第二滑槽的长度大于或者等于所述按压柱塞的移动距离。In some embodiments, a second slide groove is provided on the pressing plunger, the reset connecting rod passes through the second slide groove and is connected to the clamping boss, and the length of the second slide groove is greater than or equal to the moving distance of the pressing plunger.
在一些实施方式中，所述按压柱塞的固定端与所述推杆的近端之间设有第二弹性元件，通过所述按压柱塞挤压所述第二弹性元件，以带动所述推杆移动，从而带动所述第一消融夹钳至预设位置。In some embodiments, a second elastic element is provided between the fixed end of the pressing plunger and the proximal end of the push rod, and the pressing plunger squeezes the second elastic element to drive the push rod to move, thereby driving the first ablation clamp to a preset position.
在一些实施方式中，所述按压柱塞的固定端与所述推杆的近端通过孔轴配合连接，所述按压柱塞与所述推杆近端能够发生相对移动，在所述孔轴配合的连接段设置对应的让位槽，在所述让位槽内设置固定销，以避免所述推杆近端与所述按压柱塞固定端脱离。In some embodiments, the fixed end of the pressing plunger is connected to the proximal end of the push rod through a hole-axis fit, and the pressing plunger and the proximal end of the push rod can move relative to each other. A corresponding clearance groove is provided in the connecting section of the hole-axis fit, and a fixing pin is provided in the clearance groove to prevent the proximal end of the push rod from detaching from the fixed end of the pressing plunger.
在一些实施方式中，所述手柄壳体的容纳腔内设有滑道，所述滑道靠近所述固定套管近端一侧设置支撑盘，所述支撑盘固定设置于所述滑道内，所述支撑盘上设有第一穿孔，所述固定套管的近端穿过所述滑道侧壁和所述第一穿孔进行卡接固定，所述推杆的近端穿出所述滑道与所述按压柱塞连接；In some embodiments, a slide is provided in the accommodating cavity of the handle housing, a support plate is provided on the side of the slide close to the proximal end of the fixed sleeve, the support plate is fixedly arranged in the slide, a first through hole is provided on the support plate, the proximal end of the fixed sleeve passes through the side wall of the slide and the first through hole for clamping and fixing, and the proximal end of the push rod passes through the slide and is connected to the pressing plunger;
其中，在所述推杆的近端设有与所述滑道外形结构相匹配的滑块，所述滑块卡接于所述滑道内，可沿所述滑道轴向移动，所述滑块靠近所述按压柱塞一侧抵接于所述第二弹性元件。A slider matching the outer structure of the slideway is provided at the proximal end of the push rod. The slider is clamped in the slideway and can move axially along the slideway. The slider abuts against the second elastic element on the side close to the pressing plunger.
在一些实施方式中，所述滑道内设有第三弹性元件，所述第三弹性元件一端抵接于所述支撑盘，另一端抵接于所述滑块，当所述第二消融夹钳处于初始位置时，所述第三弹性元件处于自然状态或压缩状态，当所述第二消融夹钳处于预设位置时，所述第三弹性元件处于压缩状态；In some embodiments, a third elastic element is provided in the slideway, one end of the third elastic element abuts against the support plate, and the other end abuts against the slider, when the second ablation clamp is in the initial position, the third elastic element is in a natural state or a compressed state, and when the second ablation clamp is in the preset position, the third elastic element is in a compressed state;
其中，在单位长度内，所述第二弹性元件的弹力大于所述第三弹性元的弹力。Wherein, within a unit length, the elastic force of the second elastic element is greater than the elastic force of the third elastic element.
在一些实施方式中，所述滑道靠近所述推杆近端一侧设有第一走线槽口，所述第一走线槽口连通所述滑道与所述手柄壳体的所述容纳腔。In some embodiments, a first wiring slot is provided on a side of the slideway close to the proximal end of the push rod, and the first wiring slot connects the slideway and the accommodating cavity of the handle housing.
在一些实施方式中，所述推杆内设有第一走线通道，所述滑块上设有与所述第一走线通道连通的第二走线槽口，且所述第二走线槽口与所述第一走线槽口位置对应。In some embodiments, a first wiring channel is provided in the push rod, and a second wiring slot communicating with the first wiring channel is provided on the slider, and the second wiring slot corresponds to the first wiring slot in position.
在一些实施方式中，所述手柄壳体采用对开式结构设计，其包括镂空的第一壳体和镂空的第二壳体，所述第一壳体和所述第二壳体构成所述容纳腔，所述第一壳体内第一滑槽，所述第二壳体设有第二滑槽，所述第一滑槽和所述第二滑槽共同构成所述滑道；其中，所述第一壳体和所述第二壳体为可拆卸式连接。In some embodiments, the handle shell adopts a split structure design, which includes a hollow first shell and a hollow second shell, the first shell and the second shell constitute the accommodating cavity, the first shell has a first slide groove, the second shell is provided with a second slide groove, the first slide groove and the second slide groove together constitute the slideway; wherein, the first shell and the second shell are detachably connected.
在一些实施方式中，所述手柄壳体的所述容纳腔内靠近所述按压柱塞一侧设有支撑结构，所述支撑结构包括位于第一壳体的第一支撑架、位于第二壳体的第二支撑架以及支撑环，所述第一支撑架和所述第二支撑架构成支撑槽，所述支撑环卡接于所述支撑槽，所述按压柱塞的固定端穿过所述支撑环。In some embodiments, a support structure is provided in the accommodating cavity of the handle shell near the side of the pressing plunger, and the support structure includes a first support frame located in the first shell, a second support frame located in the second shell, and a support ring, the first support frame and the second support frame form a support groove, the support ring is clamped in the support groove, and the fixed end of the pressing plunger passes through the support ring.
在一些实施方式中，所述固定套管内部设有沿起其轴向分布的电极线导管槽，所述电极线导管槽内设有电极线导管，所述电极线导管延伸至手柄壳体容纳腔。In some embodiments, the interior of the fixed sleeve is provided with an electrode wire conduit groove distributed along the axial direction thereof, an electrode wire conduit is provided in the electrode wire conduit groove, and the electrode wire conduit extends to the handle housing accommodating cavity.
与现有技术相比较，本发明带来的有益效果为：Compared with the prior art, the present invention has the following beneficial effects:
1.本申请中，通过在按压柱塞和推杆之间采用弹簧进行弹性连接，避免了外界推力直接作用于推杆上，通过设置限位结构，在按压柱塞将推杆远端的第二消融夹钳至预设位置时，对按压柱塞进行轴向限位，避免按压柱塞带动推杆进一步移动，对肺静脉口过度挤压造成机械损伤。1. In the present application, a spring is used to elastically connect the pressing plunger and the push rod to avoid external thrust acting directly on the push rod. By setting a limiting structure, when the pressing plunger moves the second ablation clamp at the distal end of the push rod to a preset position, the pressing plunger is axially limited to prevent the pressing plunger from driving the push rod to move further and causing mechanical damage to the pulmonary vein orifice due to excessive squeezing.
2.通过对按压柱塞的固定端与推杆的近端采用孔轴配合，在孔轴配合段设置对应的让位槽，一方面保证了按压柱塞和推杆之间的相对移动，另一方面在让位槽内插接销轴，避免推杆转动的同时，还能保证推杆近端不会脱离按压柱塞的固定端。2. By adopting hole-shaft matching for the fixed end of the pressing plunger and the proximal end of the push rod, a corresponding clearance groove is set in the hole-shaft matching section. On the one hand, the relative movement between the pressing plunger and the push rod is guaranteed. On the other hand, the pin shaft is inserted into the clearance groove to prevent the push rod from rotating while ensuring that the proximal end of the push rod will not separate from the fixed end of the pressing plunger.
3.在手柄壳体的容纳腔内设置滑道，在滑道内设置支撑盘以及滑块，其中，支撑盘对固定套管的近端进行支撑固定，避免套管进行轴向移动以及转动，滑块与推杆近端连接，给推杆近端进行支撑提供稳定结构同时，还使推杆在移动过程中不偏离预设位置，始终沿自身轴线移动。同时滑块还给第二弹性元件提供支撑位，使的整个结构在移动过程中较为稳固。3. A slideway is arranged in the accommodating cavity of the handle housing, and a support plate and a slider are arranged in the slideway, wherein the support plate supports and fixes the proximal end of the fixed sleeve to prevent the sleeve from axial movement and rotation, and the slider is connected to the proximal end of the push rod to provide a stable structure for supporting the proximal end of the push rod, and also prevents the push rod from deviating from the preset position during the movement and always moves along its own axis. At the same time, the slider also provides a support position for the second elastic element, making the entire structure more stable during the movement.
4.手柄壳体采用对开式结构设计，将其拆分为对称的壳体结构，使整个装置在进行装配时较为简单易操作。4. The handle housing adopts a split structure design, which is split into a symmetrical housing structure, making the entire device easier to operate during assembly.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
一个或多个实施方式通过与之对应的附图中的图片进行示例性说明，这些示例性说明并不构成对实施方式的限定，附图中具有相同参考数字标号的元件表示为类似的元件，除非有特别申明，附图中的图不构成比例限制。One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.
图1为本发明一种脉冲消融夹持装置的去除一侧手柄壳体的内部结构示意图；FIG1 is a schematic diagram of the internal structure of a pulse ablation clamping device of the present invention with one side of the handle shell removed;
图2为本发明一种脉冲消融夹持装置的立体结构示意图；FIG2 is a schematic diagram of the three-dimensional structure of a pulse ablation clamping device according to the present invention;
图3为本发明一种脉冲消融夹持装置的手柄壳体内装有按压柱塞的立体结构示意图；FIG3 is a schematic diagram of a three-dimensional structure of a pulse ablation clamping device according to the present invention, in which a pressing plunger is installed in a handle housing;
图4为本发明一种脉冲消融夹持装置的手柄壳体内除去按压柱塞的立体结构示意图FIG. 4 is a schematic diagram of the three-dimensional structure of a pulse ablation clamping device according to the present invention with the pressing plunger removed from the handle housing.
图5为本发明一种脉冲消融夹持装置从复位按钮中心剖切的剖视图；FIG5 is a cross-sectional view of a pulse ablation clamping device according to the present invention cut from the center of a reset button;
图6为本发明一种脉冲消融夹持装置的按压柱塞的立体结构示意图；FIG6 is a schematic diagram of the three-dimensional structure of a pressing plunger of a pulse ablation clamping device according to the present invention;
图7为本发明一种脉冲消融夹持装置的按压柱塞的内部结构剖视图；FIG7 is a cross-sectional view of the internal structure of a pressing plunger of a pulse ablation clamping device according to the present invention;
图8为本发明一种脉冲消融夹持装置的推杆的立体结构示意图；FIG8 is a schematic diagram of the three-dimensional structure of a push rod of a pulse ablation clamping device according to the present invention;
图9为本发明一种脉冲消融夹持装置的推杆的内部结构剖视图；FIG9 is a cross-sectional view of the internal structure of a push rod of a pulse ablation clamping device according to the present invention;
图10为本发明一种脉冲消融夹持装置的固定套管的立体结构示意图。FIG. 10 is a schematic diagram of the three-dimensional structure of a fixed sleeve of a pulse ablation clamping device according to the present invention.
附图标号说明：手柄壳体100，容纳腔101，支撑结构102，第一支撑架1021，支撑环1022，走线孔103，握把104，支撑盘105，复位结构106，1061复位按钮，复位连杆1062，卡接凸台1063，第一弹性元件1064，滑道107，第一走线槽口1071，第三弹性元件108，第二弹性元件109，固定套管200，第一消融夹钳201，第一通道202，电极线导管203，电极线导管槽204，限位槽205，推杆300，第二消融夹钳301，滑块302，连接杆303，让位槽3031，第一走线通道304，第二走线槽口305，按压柱塞400，固定孔401，连接孔402，第二滑槽403，卡接凹槽404。Description of the accompanying drawings: handle housing 100, accommodating cavity 101, supporting structure 102, first supporting frame 1021, supporting ring 1022, wiring hole 103, grip 104, supporting plate 105, reset structure 106, reset button 1061, reset connecting rod 1062, clamping boss 1063, first elastic element 1064, slideway 107, first wiring slot 1071, third elastic element 108, second elastic element 10 9, fixed sleeve 200, first ablation clamp 201, first channel 202, electrode wire catheter 203, electrode wire catheter slot 204, limiting slot 205, push rod 300, second ablation clamp 301, slider 302, connecting rod 303, give way slot 3031, first wiring channel 304, second wiring slot 305, pressing plunger 400, fixing hole 401, connecting hole 402, second slide slot 403, clamping groove 404.
具体实施方式DETAILED DESCRIPTION
为使本发明实施方式的目的、技术方案和优点更加清楚，下面将结合附图对本发明的各实施方式进行详细的阐述。然而，本领域的普通技术人员可以理解，在本发明各实施方式中，为了使读者更好地理解本申请而提出了许多技术细节。但是，即使没有这些技术细节和基于以下各实施方式的种种变化和修改，也可以实现本申请所要求保护的技术方案。In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that in the embodiments of the present invention, many technical details are provided to enable the reader to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical scheme claimed in the present application can be implemented.
在一个实施例中，如图1和图2所示，为本发明提供的一种脉冲消融夹持装置，主要包括手柄壳体100、固定套管200、推杆300、按压柱塞400以及限位结构。所述手柄壳体100，其内部设有容纳腔101，用于安装固定套管200的近端、推杆300的近端、以及按压柱塞400的前端。所述固定套管200，在其内部设有第一通道202，沿固定套管200轴向贯穿，在固定套管200的远端设置有第一消融夹钳201，在第一消融夹钳201上设置若干第一消融电极。所述推杆300，设置于固定套管200的第一通道201内，可沿第一通道201相对于固定套管200进行轴向移动。在推杆300的远端设置了于第一消融夹钳201相对应的第二消融夹钳301，第二消融夹钳301上设有与第一消融电极对应的第二消融电极，组成消融电极组，从而完成消融手术。所述按压柱塞400，具有自由端和固定端，与推杆300进行同轴设置。其中按压柱塞400的自由端设置于手柄壳体100的外侧，按压柱塞400的固定端设置于手柄壳体100的内侧，在手柄壳体100上设置有一穿孔，按压柱塞400卡接于穿孔，使按压柱塞400沿自身轴线运动。其中，值得一提的是，按压柱塞400的固定端与推杆300的近端进行弹性连接，以弹性驱动的方式带动推杆300进行轴向移动。所述限位结构，用于对按压柱塞400进行轴向限位，当第二消融夹钳301抵接至预设位置时，按压柱塞400在限位结构作用下，停止向推杆300一侧移动，此时，第二消融夹钳301和第一消融夹钳201之间的距离符合预设距离，即可进行消融手术。In one embodiment, as shown in FIG. 1 and FIG. 2 , a pulse ablation clamping device provided by the present invention mainly includes a handle housing 100, a fixed sleeve 200, a push rod 300, a pressing plunger 400 and a limiting structure. The handle housing 100 is provided with a receiving cavity 101 therein for mounting the proximal end of the fixed sleeve 200, the proximal end of the push rod 300 and the front end of the pressing plunger 400. The fixed sleeve 200 is provided with a first channel 202 therein, which penetrates the fixed sleeve 200 axially, and a first ablation clamp 201 is provided at the distal end of the fixed sleeve 200, and a plurality of first ablation electrodes are provided on the first ablation clamp 201. The push rod 300 is provided in the first channel 201 of the fixed sleeve 200, and can move axially relative to the fixed sleeve 200 along the first channel 201. A second ablation clamp 301 corresponding to the first ablation clamp 201 is provided at the distal end of the push rod 300, and a second ablation electrode corresponding to the first ablation electrode is provided on the second ablation clamp 301, forming an ablation electrode group, thereby completing the ablation surgery. The pressing plunger 400 has a free end and a fixed end, and is coaxially arranged with the push rod 300. The free end of the pressing plunger 400 is arranged on the outside of the handle housing 100, and the fixed end of the pressing plunger 400 is arranged on the inside of the handle housing 100. A through hole is provided on the handle housing 100, and the pressing plunger 400 is clamped in the through hole, so that the pressing plunger 400 moves along its own axis. It is worth mentioning that the fixed end of the pressing plunger 400 is elastically connected to the proximal end of the push rod 300, and drives the push rod 300 to move axially in an elastically driven manner. The limiting structure is used to axially limit the pressing plunger 400. When the second ablation clamp 301 abuts against the preset position, the pressing plunger 400 stops moving toward the push rod 300 under the action of the limiting structure. At this time, the distance between the second ablation clamp 301 and the first ablation clamp 201 meets the preset distance, and the ablation operation can be performed.
本实施例中，通过按压按压柱塞400，从而带动与按压柱塞400的固定端弹性连接的推杆300进行轴向移动，使推杆300远端的第二消融夹钳301缓慢移向至固定套管200远端的第一消融夹钳201，在限位结构的作用下，限制按压柱塞400的轴向移动，使的第二消融夹钳400至预设位置。一方面，通过弹性连接，避免外界推压力直接作用于推杆300上，推杆300所受的力始终与弹簧的弹力相同，在推杆300轴向移动的过程中，由于弹性连接有一个缓冲时间，避免推杆300远端的第二消融夹钳301因移动速度过快造成肺静脉口的挤压；另一方面，通过弹性连接，解决了不同肺静脉口之间存在的尺寸上的微小差异，第二消融夹钳301可进行一定复位，使第二消融夹钳301与第一消融夹钳201之间的间距满足肺静脉口被挤压后的厚度，避免因距离过小造成长时间挤压带来的机械损伤。作为一个优选的实施方式，本实施例中弹性连接的方式采用弹簧，可选的，弹性连接的结构件也可以采用弹性橡胶或金属弹片等其他具备一定弹力且能恢复弹性形变的其它结构。In this embodiment, by pressing the pressing plunger 400, the push rod 300 elastically connected to the fixed end of the pressing plunger 400 is driven to move axially, so that the second ablation clamp 301 at the distal end of the push rod 300 slowly moves toward the first ablation clamp 201 at the distal end of the fixed sleeve 200. Under the action of the limiting structure, the axial movement of the pressing plunger 400 is restricted, so that the second ablation clamp 400 is moved to the preset position. On the one hand, the elastic connection prevents the external pushing force from directly acting on the push rod 300, and the force on the push rod 300 is always the same as the elastic force of the spring. During the axial movement of the push rod 300, the elastic connection has a buffer time, which prevents the second ablation clamp 301 at the distal end of the push rod 300 from squeezing the pulmonary vein orifice due to excessive movement speed; on the other hand, the elastic connection solves the slight size difference between different pulmonary vein orifices, and the second ablation clamp 301 can be reset to a certain extent, so that the distance between the second ablation clamp 301 and the first ablation clamp 201 meets the thickness of the pulmonary vein orifice after being squeezed, avoiding mechanical damage caused by long-term squeezing due to too small a distance. As a preferred embodiment, the elastic connection method in this embodiment adopts a spring. Optionally, the elastic connection structure can also adopt elastic rubber or metal spring sheet and other other structures with certain elastic force and able to restore elastic deformation.
在一个实施例中，如图3和图4所示，限位结构包括卡接凸台1063和卡接凹槽404，其中，当第二消融夹钳301移动至预设位置时，卡接凸台1063和卡接凹槽404进行卡接配合，对按压柱塞400的位置进行固定，从而固定推杆300位置，使第二消融夹钳301与第一消融夹钳201之间的距离固定，以达到手术所需的消融距离，贴靠效果更好，从而达到更好的消融效果。具体的，本实施例中，卡接凸台1063设置于手柄壳100体内壁，在手柄壳体100内部设有与卡接凸台4063外形相适配的卡槽，卡接凸台1063设置于卡槽内，并与按压柱塞400的一侧壁进行抵接。卡接凹槽404设置于按压柱塞400的杆体上，靠近其自由端一侧，卡接凹槽404的外形结构与卡接凸台1063相匹配。In one embodiment, as shown in FIG. 3 and FIG. 4 , the limiting structure includes a snap-fitting boss 1063 and a snap-fitting groove 404, wherein when the second ablation clamp 301 moves to a preset position, the snap-fitting boss 1063 and the snap-fitting groove 404 are snap-fitted to fix the position of the pressing plunger 400, thereby fixing the position of the push rod 300, and fixing the distance between the second ablation clamp 301 and the first ablation clamp 201, so as to achieve the ablation distance required for the operation, and achieve a better ablation effect. Specifically, in this embodiment, the snap-fitting boss 1063 is arranged on the inner wall of the handle shell 100, and a snap-fitting groove matching the outer shape of the snap-fitting boss 4063 is provided inside the handle shell 100, and the snap-fitting boss 1063 is arranged in the snap-fitting groove and abuts against a side wall of the pressing plunger 400. The engaging groove 404 is disposed on the rod body of the pressing plunger 400 , close to one side of the free end thereof, and the outer shape structure of the engaging groove 404 matches the engaging boss 1063 .
进一步的，如图5所示，为使第二消融夹钳301移动至预设位置时，卡接凸台1063能与卡接凹槽404及时卡接，对推杆300位置固定，在卡接凸台1063与手柄壳体100内壁之间设置第一弹性元件1064。其中，第一弹性元件1064在初始位置至卡接凸台1063与卡接凹槽404进行卡接之前，第一弹性元件1064始终处于压缩状态，卡接凸台1063的侧壁抵接于按压柱塞400的侧壁。为保证卡接凸台1063在按压柱塞400移动时结构的稳定性，将卡接凸台1063与按压柱塞400的接触部分均设置为平面结构。优选的，第一弹性元件1064为弹簧，弹簧设置于卡槽内，一端连接其内壁，另一端连接至卡接凸台1063。可选的，第一弹性元件1064可为金属弹片或弹性橡胶或其它弹性结构件，可以理解的是，第一弹性元件1064的结构类型以及材料均不受本发明的限制，仅需在第二消融夹钳301到达预设位置时，卡接凸台1063能够及时弹出卡槽与按压柱塞400上的卡接凹槽404卡接配合即可。Further, as shown in FIG5 , in order to enable the clamping boss 1063 to be clamped with the clamping groove 404 in time when the second ablation clamp 301 moves to the preset position, and fix the position of the push rod 300, a first elastic element 1064 is provided between the clamping boss 1063 and the inner wall of the handle housing 100. Among them, the first elastic element 1064 is always in a compressed state from the initial position to before the clamping boss 1063 and the clamping groove 404 are clamped, and the side wall of the clamping boss 1063 abuts against the side wall of the pressing plunger 400. In order to ensure the structural stability of the clamping boss 1063 when the pressing plunger 400 moves, the contact part of the clamping boss 1063 and the pressing plunger 400 is set to a planar structure. Preferably, the first elastic element 1064 is a spring, which is provided in the clamping groove, one end of which is connected to the inner wall thereof, and the other end is connected to the clamping boss 1063. Optionally, the first elastic element 1064 may be a metal spring or elastic rubber or other elastic structural part. It can be understood that the structural type and material of the first elastic element 1064 are not limited by the present invention. It is only necessary that when the second ablation clamp 301 reaches the preset position, the snap-fitting boss 1063 can pop out of the slot in time and snap-fit with the snap-fitting groove 404 on the pressing plunger 400.
作为本实施方式中的一种变形方式，还可以将卡接凸台1063设置于按压柱塞400上，将卡接凹槽404设置于手柄壳体100内壁，其原理与上述优选实施方式相同，均可实现固定按压柱塞400位置的目的。As a variation of this embodiment, the snap-fit boss 1063 can also be set on the pressing plunger 400, and the snap-fit groove 404 can be set on the inner wall of the handle housing 100. The principle is the same as the above-mentioned preferred embodiment, and both can achieve the purpose of fixing the position of the pressing plunger 400.
在一个实施例中，再次参考图4，脉冲消融夹持装置还包括复位结构106，所述复位结构106包括复位按钮1061以及复位连杆1062，其中，复位按钮1061设置于靠近按压柱塞400一侧的手柄壳体100外侧，在本实施例中，位于第二壳体(图中未进行标注)，复位连杆1062一端连接复位按钮1061，另一端穿过手柄壳体100连接卡接凸台1063。当第二消融夹钳301需进行复位回到初始位置时，按下复位按钮1061，在复位连杆1062作用下，带动卡接凸台1063退出卡接凹槽404，此时，按压柱塞400即可恢复轴向移动，即向远离推杆300的方向进行移动可进行复位。In one embodiment, referring to FIG. 4 again, the pulse ablation clamping device further includes a reset structure 106, which includes a reset button 1061 and a reset link 1062, wherein the reset button 1061 is disposed on the outside of the handle housing 100 near the side of the pressing plunger 400, and in this embodiment, is located in the second housing (not marked in the figure), one end of the reset link 1062 is connected to the reset button 1061, and the other end passes through the handle housing 100 to connect to the clamping boss 1063. When the second ablation clamp 301 needs to be reset to the initial position, the reset button 1061 is pressed, and under the action of the reset link 1062, the clamping boss 1063 is driven to exit the clamping groove 404, and at this time, the plunger 400 can be pressed to resume axial movement, that is, it can be reset by moving in a direction away from the push rod 300.
由于复位结构106设置于卡接凸台1063的对立侧，作为一个优选的实施方式，如图6和图7所示，在按压柱塞400上设置第二滑槽403。其中，复位连杆1062穿过第二滑槽403与卡接凸台1063进行连接。且第二滑槽403的长度应大于或者等于按压柱塞400轴向移动的长度，避免按压柱塞400在移动过程中与复位连杆1062进行错位干涉，影响按压柱塞400的移动。具体的，复位连杆1062为一杆状结构，第二滑槽403为与之匹配的贯通的U型槽结构，且卡接凹槽404与第二滑槽403连通。当推杆300处于初始位置时，复位连杆1062靠近按压柱塞400的自由端的U型槽一侧或抵接于U型槽侧壁；当推杆300上第二消融夹钳301处于预设位置时，复位连杆1062靠近按压柱塞400固定端的U型槽一侧或抵接于U型槽侧壁。其中，为使按压柱塞400在仅沿轴向移动，将按压柱塞400侧壁设置成平面结构，与手柄壳体100穿插口壁贴合，以阻止推压柱塞400绕轴线转动。结合本实施例中卡接凸台1063的形状，使卡接凸台1063与按压柱塞400的抵接面为平面结构，限制按压柱塞400转动的同时，还使卡接凸台1063抵接时结构稳定。可以理解的使，第二滑槽403的形状结构以及复位连杆1062形状结构均不受本发明的限制。Since the reset structure 106 is arranged on the opposite side of the clamping boss 1063, as a preferred embodiment, as shown in Figures 6 and 7, a second slide groove 403 is arranged on the pressing plunger 400. Among them, the reset link 1062 passes through the second slide groove 403 to connect with the clamping boss 1063. And the length of the second slide groove 403 should be greater than or equal to the length of the axial movement of the pressing plunger 400 to avoid the misalignment interference between the pressing plunger 400 and the reset link 1062 during the movement, which affects the movement of the pressing plunger 400. Specifically, the reset link 1062 is a rod-shaped structure, the second slide groove 403 is a through U-shaped groove structure matched therewith, and the clamping groove 404 is connected to the second slide groove 403. When the push rod 300 is in the initial position, the reset link 1062 is close to one side of the U-shaped groove of the free end of the pressing plunger 400 or abuts against the side wall of the U-shaped groove; when the second ablation clamp 301 on the push rod 300 is in the preset position, the reset link 1062 is close to one side of the U-shaped groove of the fixed end of the pressing plunger 400 or abuts against the side wall of the U-shaped groove. In order to make the pressing plunger 400 move only in the axial direction, the side wall of the pressing plunger 400 is set to a planar structure, which fits with the wall of the insertion opening of the handle housing 100 to prevent the pushing plunger 400 from rotating around the axis. Combined with the shape of the clamping boss 1063 in this embodiment, the abutting surface of the clamping boss 1063 and the pressing plunger 400 is a planar structure, which not only limits the rotation of the pressing plunger 400, but also makes the structure stable when the clamping boss 1063 abuts. It can be understood that the shape and structure of the second sliding groove 403 and the shape and structure of the reset connecting rod 1062 are not limited by the present invention.
可选的，也可以不设置第二滑槽403，将复位连杆1062设置成绕过按压柱塞400的结构，从按压柱塞400上侧或下侧穿过，还可以是按压柱塞400穿过复位连杆1062的结构组成件。亦或将复位结构106与限位结构设置在同一侧面也可实现限位结构的复位的目的。Optionally, the second slide groove 403 may not be provided, and the reset link 1062 may be provided to bypass the pressing plunger 400 and pass through the upper or lower side of the pressing plunger 400, or the pressing plunger 400 may pass through the structural component of the reset link 1062. Alternatively, the reset structure 106 and the limiting structure may be provided on the same side to achieve the purpose of resetting the limiting structure.
在一个实施例中，参考图1，在按压柱塞400的固定端与推杆的近端之间设置第二弹性元件109，其中，第二弹性元件109的一端抵接于按压柱塞400，另一端抵接于推杆300近端，以实现按压柱塞400和推杆300之间的弹性连接。在进行具体操作时，当挤压按压柱塞400时，按压柱塞400轴向移动挤压第二弹性元件109，在通过第二弹性元件109间接推动推杆300进行轴向移动。可以理解的是，通过这种弹性连接，避免了外界推压力直接作用于推杆300上，使推杆300所受的力为推力为第二弹性元件109提供的弹力，在推杆300移动过程中有一个缓冲过程；同时，在到达预设位置后，由于推杆300与按压柱塞400之间的弹性连接，使第二消融夹钳301与第一消融夹钳201之间的距离可根据挤压的肺静脉口不同尺寸进行自适应调节，避免因刚性连接带来的机械挤压损伤。优选的，本实施例中第二弹性元109件为弹簧，套设于按压柱塞400的台阶段和推杆300近端之间。可选的，第二弹性元件109可为具备一定可形变弹性恢复的弹性橡胶或金属弹片之类的结构件。In one embodiment, referring to FIG1 , a second elastic element 109 is disposed between the fixed end of the pressing plunger 400 and the proximal end of the push rod, wherein one end of the second elastic element 109 abuts against the pressing plunger 400, and the other end abuts against the proximal end of the push rod 300, so as to realize an elastic connection between the pressing plunger 400 and the push rod 300. During a specific operation, when the pressing plunger 400 is squeezed, the pressing plunger 400 moves axially to squeeze the second elastic element 109, and indirectly pushes the push rod 300 to move axially through the second elastic element 109. It is understandable that, through this elastic connection, the external pushing force is avoided from directly acting on the push rod 300, so that the force on the push rod 300 is the elastic force provided by the second elastic element 109, and there is a buffer process during the movement of the push rod 300; at the same time, after reaching the preset position, due to the elastic connection between the push rod 300 and the pressing plunger 400, the distance between the second ablation clamp 301 and the first ablation clamp 201 can be adaptively adjusted according to the different sizes of the squeezed pulmonary vein orifice, avoiding mechanical squeezing damage caused by rigid connection. Preferably, in this embodiment, the second elastic element 109 is a spring, which is sleeved between the stage of the pressing plunger 400 and the proximal end of the push rod 300. Optionally, the second elastic element 109 can be a structural member such as elastic rubber or metal spring with a certain degree of deformable elastic recovery.
在一个实施例中，参考图6和图7，为满足按压柱塞400和推杆300之间的弹性连接，将按压柱塞400和推杆300之间采用孔轴配合连接，二者之间能够发生相对移动。本实施例中，具体方式为，在按压柱塞400的固定端设置连接孔402，在推杆300近端设置相匹配的连接杆303，其中，连接杆303插接于连接孔402内。连接孔402的深度满足于连接杆303能够沿其进行轴向移动。进一步的，为避免连接杆303和连接孔402脱离，在连接杆303和连接孔402的孔轴配合连接段设置让位槽3031，在让位槽3031内设置固定销，以使推杆300和按压柱塞400不会脱离。具体的，在连接孔402一端设有固定孔401，在连接杆303上设有让位槽3031，固定销穿过二者进行连接固定。作为本实施例的另一种变形方式，还可以是，在推杆300近端设置连接孔402，在按压柱塞400的固定端设置连接杆303，与上述原理相同，也可满足上述弹性连接相对移动的需求。可选的，可在连接孔402和连接杆303配合段设置相同长条结构的让位槽3031或在连接杆303上设置固定孔401，在连接孔402段设置让位槽3031，均可实现按压柱塞400与推杆300不脱离的目的。In one embodiment, referring to FIG. 6 and FIG. 7 , in order to satisfy the elastic connection between the pressing plunger 400 and the push rod 300, the pressing plunger 400 and the push rod 300 are connected by a hole-shaft matching connection, so that relative movement can occur between the two. In this embodiment, the specific method is that a connecting hole 402 is provided at the fixed end of the pressing plunger 400, and a matching connecting rod 303 is provided at the proximal end of the push rod 300, wherein the connecting rod 303 is inserted into the connecting hole 402. The depth of the connecting hole 402 satisfies that the connecting rod 303 can move axially along it. Further, in order to prevent the connecting rod 303 from being separated from the connecting hole 402, a clearance groove 3031 is provided in the hole-shaft matching connection section of the connecting rod 303 and the connecting hole 402, and a fixing pin is provided in the clearance groove 3031, so that the push rod 300 and the pressing plunger 400 will not be separated. Specifically, a fixing hole 401 is provided at one end of the connecting hole 402, and a clearance groove 3031 is provided on the connecting rod 303, and a fixing pin passes through the two to connect and fix. As another variation of this embodiment, a connecting hole 402 can be provided at the proximal end of the push rod 300, and a connecting rod 303 can be provided at the fixed end of the pressing plunger 400, which is the same as the above principle and can also meet the above-mentioned elastic connection relative movement requirements. Optionally, a clearance groove 3031 of the same long strip structure can be provided in the matching section of the connecting hole 402 and the connecting rod 303, or a fixing hole 401 can be provided on the connecting rod 303, and a clearance groove 3031 can be provided in the section of the connecting hole 402, both of which can achieve the purpose of preventing the pressing plunger 400 from being separated from the push rod 300.
在一个实施例中，手柄壳体100的容纳腔内设有滑道107，主要用于对固定套管200的近端和推杆300的近端进行支撑。具体的，在推杆300的近端设置有滑块302，其中滑块302的外形结构与滑道107匹配，滑块302抵接于滑道107内壁。滑块302与推杆300固定连接，且滑块302可与滑道107发生相对轴向移动。在滑道107轴向两侧设置穿孔，固定套管200近端穿过一侧穿孔进行卡接固定，该穿孔与固定套管200外径相匹配。滑道107侧壁另一侧穿孔孔径稍大，满足第二弹性元件109能够穿过该穿孔与滑块302侧壁抵接。本实施例中，滑道107将推杆300近端分割成两部分，其中一部分即为连接杆303，设置在滑块302靠近按压柱塞400一侧，连接杆303穿过该侧穿孔插接于按压柱塞400的连接孔402内。In one embodiment, a slideway 107 is provided in the accommodating cavity of the handle housing 100, which is mainly used to support the proximal end of the fixed sleeve 200 and the proximal end of the push rod 300. Specifically, a slider 302 is provided at the proximal end of the push rod 300, wherein the shape structure of the slider 302 matches the slideway 107, and the slider 302 abuts against the inner wall of the slideway 107. The slider 302 is fixedly connected to the push rod 300, and the slider 302 can move relative to the slideway 107 in the axial direction. Perforations are provided on both sides of the slideway 107, and the proximal end of the fixed sleeve 200 passes through one side of the perforations for clamping and fixing, and the perforations match the outer diameter of the fixed sleeve 200. The diameter of the perforations on the other side of the side wall of the slideway 107 is slightly larger, so that the second elastic element 109 can pass through the perforations and abut against the side wall of the slider 302. In this embodiment, the slide 107 divides the proximal end of the push rod 300 into two parts, one of which is the connecting rod 303, which is arranged on the side of the slider 302 close to the pressing plunger 400. The connecting rod 303 passes through the side through hole and is inserted into the connecting hole 402 of the pressing plunger 400.
进一步的，参考图3和图5，为加固固定套管200近端的固定，在滑道107内部靠近第二消融夹钳301一侧设置支撑盘105，在支撑盘105上设有与固定套管200外形匹配的第一穿孔，固定套管200近端穿过该第一穿孔进行卡接固定。本实施例中，支撑盘105的结构与滑道107内部结构相适配，且支撑盘105不能相对于滑道107进行移动，以使固定套管200近端进行锁紧规定，避免其进行轴向移动。Further, referring to FIG3 and FIG5, in order to strengthen the fixation of the proximal end of the fixed sleeve 200, a support plate 105 is provided inside the slideway 107 near the second ablation clamp 301, and a first through hole matching the shape of the fixed sleeve 200 is provided on the support plate 105, and the proximal end of the fixed sleeve 200 is fixed by clamping through the first through hole. In this embodiment, the structure of the support plate 105 is adapted to the internal structure of the slideway 107, and the support plate 105 cannot move relative to the slideway 107, so that the proximal end of the fixed sleeve 200 is locked and regulated to prevent it from moving axially.
进一步的，再次参考图1，为使推杆300在预设位置状态下复位到初始位置时，在滑道107内设置第三弹性元件108。其中，第三弹性元件108一端抵接于滑块302一侧，另一端抵接于支撑盘105侧壁。具体的，当第二消融夹钳301处于初始位置时，第三弹性元件108处于自然状态或压缩状态；当滑块302从靠近按压柱塞400一侧缓慢移动至支撑盘105一侧，第三弹性元件108处于压缩状态。当第二消融夹钳301从预设位置复位时，按下复位按钮1061，卡接凸台1063退出卡接凹槽404，在第三弹性元件108作用下推杆300复位至初始状态。本实施例中，第三弹性元件108优选为弹簧。可选的，第三弹性元件108还可以为弹性橡胶件，或金属弹片，满足无外力状态下能够恢复形变量的弹性结构件即可。值得一提的是，在本实施例中，第二弹性元件109单位长度的弹力要大于第三弹性元件108的单位长度的弹力，避免按压柱塞400在挤压第二弹性元件109时，由于第三弹性元件108弹力过大，阻止滑块302带动推杆300轴向移动。Further, referring to FIG. 1 again, in order to reset the push rod 300 to the initial position in the preset position state, a third elastic element 108 is provided in the slideway 107. Among them, one end of the third elastic element 108 abuts against one side of the slider 302, and the other end abuts against the side wall of the support plate 105. Specifically, when the second ablation clamp 301 is in the initial position, the third elastic element 108 is in a natural state or a compressed state; when the slider 302 slowly moves from the side close to the pressing plunger 400 to the side of the support plate 105, the third elastic element 108 is in a compressed state. When the second ablation clamp 301 is reset from the preset position, the reset button 1061 is pressed, the clamping boss 1063 withdraws from the clamping groove 404, and the push rod 300 is reset to the initial state under the action of the third elastic element 108. In this embodiment, the third elastic element 108 is preferably a spring. Optionally, the third elastic element 108 can also be an elastic rubber member, or a metal spring, which can be an elastic structural member that can restore the deformation in the absence of external force. It is worth mentioning that in this embodiment, the elastic force per unit length of the second elastic element 109 is greater than the elastic force per unit length of the third elastic element 108, so as to avoid the situation where the slider 302 is prevented from driving the push rod 300 to move axially due to excessive elastic force of the third elastic element 108 when the pressing plunger 400 squeezes the second elastic element 109.
在一个实施例中，如图5所示，在滑道107的侧壁设有第一走线槽口1071，第一走线槽口1071将滑道107与容纳腔101进行连通，其主要目的为用于电极导线的安装走线。本实施例中，第一走线槽口1071设有上下两个，其中，第一走线槽口1071沿滑道107轴向分布，第一走线槽口1071的长度与滑块302移动的距离相接近，避免滑块302移动过程中，电极导线与第一走线槽口1071侧边进行摩擦。进一步的，滑块302一侧设置开口结构，该开口结构与推杆300内的第一走线通道304进行连通。第一走线通道304延伸至第二消融夹钳301处，用于第二消融电极的电极导线走线安装。在滑块302的非开口结构处还设有第二走线槽口305，与第一走线槽口1071连通开口结构以及第一走线通道304，均用于电极导线的走线安装。In one embodiment, as shown in FIG5 , a first wiring slot 1071 is provided on the side wall of the slide 107, and the first wiring slot 1071 connects the slide 107 with the accommodating chamber 101, and its main purpose is to be used for the installation and routing of the electrode wire. In this embodiment, the first wiring slot 1071 is provided with two upper and lower ones, wherein the first wiring slot 1071 is distributed along the axial direction of the slide 107, and the length of the first wiring slot 1071 is close to the distance moved by the slider 302, so as to avoid friction between the electrode wire and the side of the first wiring slot 1071 during the movement of the slider 302. Furthermore, an opening structure is provided on one side of the slider 302, and the opening structure is connected with the first wiring channel 304 in the push rod 300. The first wiring channel 304 extends to the second ablation clamp 301, and is used for the installation of the electrode wire routing of the second ablation electrode. A second wiring slot 305 is also provided at the non-opening structure of the slider 302 , which is connected to the opening structure of the first wiring slot 1071 and the first wiring channel 304 , and is used for wiring installation of the electrode wire.
在一个实施例中，参考图3，手柄壳体100采用对开式结构与设计，其中壳体内部结构采用对称结构设计。具体的，手柄壳体100包括第一壳体和第二壳体，二者为可拆卸连接。其中第第一壳体和第二壳体为镂空结构，装配时以形成容纳腔101。本实施例中，为便于装配拆卸，滑道107由两个对称的滑槽结构组成。具体的，第一壳体上设有第一滑槽，第二壳体上设有第二滑槽，第一滑槽和第二滑槽结合时构成滑道107。In one embodiment, referring to FIG3 , the handle housing 100 adopts a split structure and design, wherein the internal structure of the housing adopts a symmetrical structure design. Specifically, the handle housing 100 includes a first housing and a second housing, which are detachably connected. The first housing and the second housing are hollow structures, which form a receiving chamber 101 when assembled. In this embodiment, in order to facilitate assembly and disassembly, the slide 107 is composed of two symmetrical slide groove structures. Specifically, a first slide groove is provided on the first housing, and a second slide groove is provided on the second housing, and the first slide groove and the second slide groove are combined to form the slide 107.
作为一个优选的实施方式，在靠近复位结构106一侧还设有握把104，其中，握把104与推杆300轴向形成一定夹角，以满足手握时，能方便按压按压柱塞400和复位按钮1061。在握把104底部设有走线孔103，用于第一消融电极和第二消融电极上的电极导线与外界能量发生器连接。As a preferred embodiment, a handle 104 is further provided on the side close to the reset structure 106, wherein the handle 104 forms a certain angle with the axial direction of the push rod 300, so that when the hand is held, the plunger 400 and the reset button 1061 can be pressed conveniently. A wiring hole 103 is provided at the bottom of the handle 104, which is used to connect the electrode wires on the first ablation electrode and the second ablation electrode to the external energy generator.
由于按压柱塞400的行程有一定距离，而手柄壳体100对按压柱塞400的支撑力有限，为了进一步稳固按压柱塞400固定端的结构，使按压柱塞400沿轴线移动，如图3和图4所示，在手柄壳体100内还设置支撑结构102，按压柱塞400的固定端穿过支撑结构102进行支撑固定。具体的，支撑结构102包括位于第一壳体的第一支架1021、位于第二壳体的第二支架以及支撑环1022。在第一支架1021和第二支架内设置支撑槽，其中，支撑环1022卡接于支撑槽内，按压柱塞400的固定端穿过支撑环1022与推杆300近端进行弹性连接。本实施例中，支撑环1022内设置环形支撑孔，其内径与按压柱塞400外形形同，以对按压柱塞400进行限位支撑。Since the stroke of the pressing plunger 400 has a certain distance, and the support force of the handle housing 100 on the pressing plunger 400 is limited, in order to further stabilize the structure of the fixed end of the pressing plunger 400 and make the pressing plunger 400 move along the axis, as shown in Figures 3 and 4, a support structure 102 is also provided in the handle housing 100, and the fixed end of the pressing plunger 400 passes through the support structure 102 for support and fixation. Specifically, the support structure 102 includes a first bracket 1021 located in the first housing, a second bracket located in the second housing, and a support ring 1022. A support groove is provided in the first bracket 1021 and the second bracket, wherein the support ring 1022 is clamped in the support groove, and the fixed end of the pressing plunger 400 passes through the support ring 1022 and is elastically connected to the proximal end of the push rod 300. In this embodiment, an annular support hole is provided in the support ring 1022, and its inner diameter is the same as the outer shape of the pressing plunger 400, so as to provide limited support for the pressing plunger 400.
在一个实施例中，参考图8-10，在固定套管内设置电极线导管槽204，在电极线导管槽204内设安装电极线导管203，第一消融夹钳201上的第一消融电极上的电极导线从电极线导管203穿接至容纳腔101内.值得一提的是，在固定套管200近端还设有限位槽205，其中，限位槽205与手柄壳体100内的限位台卡接，一方面用于固定套管200轴向转动限位，另一方面限位槽205与容纳腔101连通，用于第一消融电极上的电极导线的穿出。通过设置电极线导管203，将第一消融电极和第二消融电极上的电极导线进行单独安装，避免推杆300在移动过程中，第一消融电极上的电极导线拉扯或扭曲。In one embodiment, referring to FIGS. 8-10 , an electrode wire conduit groove 204 is provided in the fixed sleeve, and an electrode wire conduit 203 is installed in the electrode wire conduit groove 204, and the electrode wire on the first ablation electrode on the first ablation clamp 201 is connected from the electrode wire conduit 203 to the accommodating cavity 101. It is worth mentioning that a limiting groove 205 is also provided at the proximal end of the fixed sleeve 200, wherein the limiting groove 205 is engaged with the limiting platform in the handle housing 100, which is used for axial rotation limiting of the fixed sleeve 200 on the one hand, and is connected with the accommodating cavity 101 on the other hand, for the electrode wire on the first ablation electrode to pass out. By providing the electrode wire conduit 203, the electrode wires on the first ablation electrode and the second ablation electrode are installed separately, so as to avoid the electrode wire on the first ablation electrode from being pulled or twisted during the movement of the push rod 300.
本领域的普通技术人员可以理解，上述各实施方式是实现本发明的具体实施方式，而在实际应用中，可以在形式上和细节上对其作各种改变，而不偏离本发明的精神和范围。Those skilled in the art will appreciate that the above-mentioned embodiments are specific embodiments for implementing the present invention, and in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211173477.0ACN115486929B (en) | 2022-09-26 | 2022-09-26 | Pulse ablation clamping device |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211173477.0ACN115486929B (en) | 2022-09-26 | 2022-09-26 | Pulse ablation clamping device |
| Publication Number | Publication Date |
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| CN115486929A CN115486929A (en) | 2022-12-20 |
| CN115486929Btrue CN115486929B (en) | 2024-09-24 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211173477.0AActiveCN115486929B (en) | 2022-09-26 | 2022-09-26 | Pulse ablation clamping device |
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| CN (1) | CN115486929B (en) |
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|---|---|---|---|---|
| CN103169510A (en)* | 2011-12-20 | 2013-06-26 | 刘兴鹏 | Chemical ablation device used for curing atrial fibrillation |
| CN110840552A (en)* | 2019-12-10 | 2020-02-28 | 杭州睿笛生物科技有限公司 | Electric pulse ablation system for treating atrial fibrillation and using method thereof |
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| WO2017024124A1 (en)* | 2015-08-04 | 2017-02-09 | Lc Therapeutics, Inc. | Tissue ablation devices and methods of using the same |
| CN211381733U (en)* | 2019-12-10 | 2020-09-01 | 杭州睿笛生物科技有限公司 | Electric pulse ablation system for treating atrial fibrillation |
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| CN103169510A (en)* | 2011-12-20 | 2013-06-26 | 刘兴鹏 | Chemical ablation device used for curing atrial fibrillation |
| CN110840552A (en)* | 2019-12-10 | 2020-02-28 | 杭州睿笛生物科技有限公司 | Electric pulse ablation system for treating atrial fibrillation and using method thereof |
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| CP03 | Change of name, title or address | Address after:Room 206, East 2nd Floor, Building 2, No. 6 Shennong Road, Torch Development Zone, Zhongshan City, Guangdong Province, China 528437 Patentee after:Zhouling (Zhongshan) Medical Equipment Co.,Ltd. Country or region after:China Address before:Room 204, Building 5, No. 2388 Xiupu Road, Pudong New Area, Shanghai Patentee before:ZhouLing (Shanghai) Medical Instrument Co.,Ltd. Country or region before:China |