CN115300197A - Support extractor - Google Patents

Abstract

Translated fromChinese

本发明提供一种支架取出器，涉及医疗器械技术领域。包括保护软套管，所述保护软套管呈喇叭状，保护软套管的喇叭口往外翻折；夹臂，多个所述的夹臂可开合的设置于所述保护软套管内，且所述保护软套管可受外力而包裹所述夹臂；开合机构，多个所述的开合机构周向阵列于所述保护软套管内，且所述开合机构与所述夹臂一一对应连接，以控制所述夹臂同步开合；以及手柄部，所述手柄部设置于所述保护软套管的远端，且所述手柄部设置有操作组件，所述操作组件用于控制开合机构实现夹臂的同步开合。本申请能方便、快速、准确的取出食管支架。

The invention provides a stent extractor, which relates to the technical field of medical devices. It includes a protective soft sleeve, the protective soft sleeve is in the shape of a horn, and the bell mouth of the protective soft sleeve is folded outwards; a clamping arm, a plurality of the clamping arms can be opened and closed in the protective soft sleeve, and the protective soft sleeve can be subjected to external force to wrap the clip arm; an opening and closing mechanism, a plurality of the opening and closing mechanisms are circumferentially arrayed in the protective soft sleeve, and the opening and closing mechanisms are connected to the clip. The arms are connected in a one-to-one correspondence to control the synchronous opening and closing of the clamping arms; and a handle part, the handle part is arranged at the distal end of the protective soft sleeve, and the handle part is provided with an operation component, the operation component It is used to control the opening and closing mechanism to realize the synchronous opening and closing of the clamping arms. The application can conveniently, quickly and accurately remove the esophageal stent.

Description

Translated fromChinese

一种支架取出器A stent extractor

技术领域technical field

本发明涉及医疗器械技术领域，具体而言，涉及一种支架取出器。The invention relates to the technical field of medical instruments, in particular to a stent extractor.

背景技术Background technique

在食管狭窄(良性狭窄或恶性狭窄)病人的治疗过程中，为了解除食管 梗阻，改善或恢复病人的经口进食功能，常常需要在病人的食管中置入一 个食管支架，以使其恢复通畅。置入食管支架时常因计算误差或操作不当 而需要调整或取出重新放置；在治疗过程中，亦可因病人进食时食物向下 (即向胃侧)的挤压、食管的蠕动等原因而致支架向胃侧滑落；食管良性 狭窄在治疗结束后亦需取出支架。现有的食管支架取出/调整工具为钩子，一不锈钢丝，前端为勾状，通过内窥镜内的管道插入至食管支架上方，寻 找并勾住食管支架的网孔后向人体外拉，即可取出或调整支架。由于钩子 为钢性结构，且为向钩子开口方向勾取，在通过内窥镜使用钩子捕获食管 支架的网孔时，常常经过多次反复尝试，操作费时费力，造成食管支架取 出/调整十分困难。During the treatment of patients with esophageal stenosis (benign stenosis or malignant stenosis), in order to remove esophageal obstruction and improve or restore the patient's oral feeding function, it is often necessary to insert an esophageal stent in the patient's esophagus to restore its patency. When placing an esophageal stent, it is often necessary to adjust or take it out and replace it due to calculation errors or improper operation; The stent slipped toward the stomach; benign esophageal strictures also needed to be removed after treatment. The existing esophageal stent removal/adjustment tool is a hook, a stainless steel wire with a hook-shaped front end, which is inserted above the esophageal stent through the pipeline in the endoscope, and then pulled out to the human body after finding and hooking the mesh of the esophageal stent, that is, The stand can be removed or adjusted. Since the hook is of a steel structure and is drawn towards the opening of the hook, when using the hook to capture the mesh of the esophageal stent through the endoscope, it often takes many repeated attempts, and the operation is time-consuming and laborious, making it very difficult to remove/adjust the esophageal stent .

因此，如何解决上述技术问题成为本领域研究的重点Therefore, how to solve the above technical problems has become the focus of research in this field

发明内容Contents of the invention

本发明的目的在于提供一种支架取出器，用于解决上述技术问题。The object of the present invention is to provide a stent extractor for solving the above technical problems.

本发明的实施例是这样实现的：Embodiments of the present invention are achieved like this:

一种支架取出器，包括：A stent extractor comprising:

保护软套管，所述保护软套管呈喇叭状，保护软套管的喇叭口往外翻 折；Protective soft casing, the protective soft casing is trumpet-shaped, and the bell mouth of the protective soft casing is turned outward;

夹臂，多个所述的夹臂可开合的设置于所述保护软套管内，且所述保 护软套管可受外力而包裹所述夹臂；Clamp arm, a plurality of the clamp arms can be opened and closed in the protective soft sleeve, and the protective soft sleeve can be subjected to external force to wrap the clamp arm;

开合机构，多个所述的开合机构周向阵列于所述保护软套管内，且所 述开合机构与所述夹臂一一对应连接，以控制所述夹臂同步开合；An opening and closing mechanism, a plurality of the opening and closing mechanisms are circumferentially arrayed in the protective soft sleeve, and the opening and closing mechanisms are connected to the clamp arms one by one to control the synchronous opening and closing of the clamp arms;

以及手柄部，所述手柄部设置于所述保护软套管的远端，且所述手柄 部设置有操作组件，所述操作组件用于控制开合机构实现夹臂的同步开合。And a handle part, the handle part is arranged on the far end of the protective soft sleeve, and the handle part is provided with an operating assembly, and the operating assembly is used to control the opening and closing mechanism to realize the synchronous opening and closing of the clip arm.

进一步的，在本发明的一种实施例中，所述保护软套管内设置有基座， 所述开合机构周向阵列于所述基座上。Further, in an embodiment of the present invention, a base is provided inside the protective soft sleeve, and the opening and closing mechanisms are arrayed on the base in a circumferential direction.

进一步的，在本发明的一种实施例中，所述开合机构包括：Further, in an embodiment of the present invention, the opening and closing mechanism includes:

转轴，所述转轴转动设置于所述基座内，所述夹臂固定设置于所述转 轴上；A rotating shaft, the rotating shaft is rotatably arranged in the base, and the clamp arm is fixedly arranged on the rotating shaft;

绕线轮，所述绕线轮固定设置于所述转轴，所述绕线轮上缠绕有丝线， 所述丝线与所述操作组件连接；a winding wheel, the winding wheel is fixedly arranged on the rotating shaft, a wire is wound on the winding wheel, and the wire is connected to the operating component;

卷簧，所述卷簧设置于所述转轴的一端，且当所述绕线轮带动所述转 轴转动使夹臂打开时，所述卷簧卷绕于所述转轴呈收紧状态。A coil spring, the coil spring is arranged at one end of the rotating shaft, and when the winding wheel drives the rotating shaft to rotate to open the clip arm, the coil spring is wound around the rotating shaft to be in a tightened state.

进一步的，在本发明的一种实施例中，所述基座内周向阵列有若干安 装槽，所述安装槽贯穿所述基座的上端面和下端面，所述转轴水平的转动 安装于所述安装槽内。Further, in one embodiment of the present invention, there are several installation grooves arrayed in the inner circumferential direction of the base, the installation grooves run through the upper end surface and the lower end surface of the base, and the horizontal rotation of the rotating shaft is installed on in the mounting slot.

进一步的，在本发明的一种实施例中，所述夹臂靠近于所述基座的一 侧间隔设置有多个金属钩。Further, in one embodiment of the present invention, a plurality of metal hooks are arranged at intervals on the side of the clip arm close to the base.

进一步的，在本发明的一种实施例中，所述操作组件包括：Further, in an embodiment of the present invention, the operation component includes:

操作柄，所述操作柄滑动设置于所述手柄部；An operating handle, the operating handle is slidably arranged on the handle portion;

牵引丝，所述牵引丝的一端与所述操作柄固定连接，所述操作丝的另 一端与所述丝线连接。A pulling wire, one end of the pulling wire is fixedly connected to the operating handle, and the other end of the operating wire is connected to the wire.

进一步的，在本发明的一种实施例中，所述手柄部沿其长度方向设置 有滑槽，所述牵引丝沿所述滑槽布置。Further, in one embodiment of the present invention, the handle part is provided with a sliding groove along its length direction, and the pulling wire is arranged along the sliding groove.

进一步的，在本发明的一种实施例中，所述操作柄的居中位置开设有 滑道孔，所述操作柄通过滑道孔套设于所述手柄部。Further, in one embodiment of the present invention, a slideway hole is opened at the central position of the operating handle, and the operating handle is sleeved on the handle part through the slideway hole.

进一步的，在本发明的一种实施例中，所述操作柄的相对两端设置有 指环孔。Further, in one embodiment of the present invention, ring holes are provided at opposite ends of the handle.

进一步的，在本发明的一种实施例中，所述夹臂的前端为钝性头。Further, in one embodiment of the present invention, the front end of the clamp arm is a blunt head.

本发明实施例至少具有如下优点或有益效果：Embodiments of the present invention have at least the following advantages or beneficial effects:

1、本发明提供的一种支架取出器，由于保护软套管呈喇叭状，从而方 便食管支架进入保护软套管内，被设置于保护软套管内的夹臂夹持而往外 取出。1. The stent extractor provided by the present invention, because the protective soft sheath is trumpet-shaped, it is convenient for the esophageal stent to enter into the protective soft sheath, and is clamped by the clamp arm set in the protective soft sheath to take it out.

2、本发明提供的一种支架取出器，由于保护软套管柔软且有韧性，故 在将取出器从内镜孔道往内送前，将夹臂微微张开口，使保护软套管卡于 相邻两个夹臂之间，对夹臂形成包裹，从而避免夹臂划伤内镜孔道或机体 组织。2. In the stent extractor provided by the present invention, since the protective soft sleeve is soft and flexible, before the extractor is sent inward from the endoscope channel, the clamping arm is opened slightly so that the protective soft sleeve is stuck in the Between two adjacent clamping arms, the clamping arms are wrapped, so as to prevent the clamping arms from scratching the endoscope channel or body tissue.

3、本发明提供的一种支架取出器，由于设置了操作柄用于控制多个开 合机构，使开合机构控制多个夹臂同步开合，从而将支架夹持于夹臂之间， 从而能快速准确的将支架取出。3. A bracket extractor provided by the present invention is provided with an operating handle for controlling multiple opening and closing mechanisms, so that the opening and closing mechanisms control multiple clamping arms to open and close synchronously, thereby clamping the bracket between the clamping arms, Thereby, the bracket can be taken out quickly and accurately.

附图说明Description of drawings

为了更清楚地说明本发明实施例的技术方案，下面将对实施例中所需 要使用的附图作简单地介绍，应当理解，以下附图仅示出了本发明的某些 实施例，因此不应被看作是对范围的限定，对于本领域普通技术人员来讲， 在不付出创造性劳动的前提下，还可以根据这些附图获得其他相关的附图。In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and thus It should be regarded as a limitation on the scope, and those skilled in the art can also obtain other related drawings based on these drawings without creative work.

图1为本发明实施例提供的一种支架取出器的正视图；Figure 1 is a front view of a stent extractor provided by an embodiment of the present invention;

图2为本发明实施例提供的一种支架取出器的部分剖视图；Fig. 2 is a partial cross-sectional view of a stent extractor provided by an embodiment of the present invention;

图3为图2中A处放大图；Figure 3 is an enlarged view of A in Figure 2;

图4为开合机构的结构示意图；Fig. 4 is a structural schematic diagram of the opening and closing mechanism;

图5为图1中B处放大图；Figure 5 is an enlarged view at B in Figure 1;

图6为图3中C处放大图。Fig. 6 is an enlarged view of point C in Fig. 3 .

图标：1-保护软套管，2-手柄部，3-夹臂，4-安装槽，5-基座，6-转 轴，7-绕线轮，8-卷簧，9-丝线，10-金属钩，11-操作柄，12-指环孔，13- 滑槽，14-牵引丝。Icons: 1-protective soft casing, 2-handle, 3-clamp arm, 4-installation slot, 5-base, 6-rotating shaft, 7-winding wheel, 8-coil spring, 9-wire, 10- Metal hook, 11-operating handle, 12-ring hole, 13-chute, 14-drawing wire.

具体实施方式Detailed ways

为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本 发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描 述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。 通常在此处附图中描述和示出的本发明实施例的组件可以以各种不同的配 置来布置和设计。In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

因此，以下对在附图中提供的本发明的实施例的详细描述并非旨在限 制要求保护的本发明的范围，而是仅仅表示本发明的选定实施例。基于本 发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获 得的所有其他实施例，都属于本发明保护的范围。Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

实施例1Example 1

请参照图1至图6所示，本实施例提供了一种支架取出器，包括保护软 套管1、夹臂3、开合机构、手柄部2以及操作组件，其中，夹臂3和开合 机构均为多个，且夹臂3和开合机构一一对应连接，开合机构和夹臂3均 设置于保护软套管1内，手柄部2固定设置于保护软套管1的末端，操作 组件滑动设置于手柄部2，且通过操作组件可以控制开合机构使多个夹臂3 同步开合。Please refer to Figures 1 to 6, this embodiment provides a bracket extractor, including a protectivesoft sleeve 1, aclamp arm 3, an opening and closing mechanism, ahandle part 2 and an operating assembly, wherein theclamp arm 3 and the opening and closing There are multiple closing mechanisms, and theclamp arm 3 and the opening and closing mechanism are connected one by one. The opening and closing mechanism and theclamping arm 3 are both arranged in the protectivesoft sleeve 1, and thehandle part 2 is fixedly arranged at the end of the protectivesoft sleeve 1. , the operating component is slidably disposed on thehandle part 2, and the opening and closing mechanism can be controlled by the operating component to make multiple clampingarms 3 open and close synchronously.

具体来说：Specifically:

参见图1和图2所示，保护软套管1采用橡胶材料制成，具有一定韧性， 从而在将食管支架收入管内时，同时保护软套管1呈喇叭状，这样使得食 管支架更容易从膨大的喇叭口进入保护软套管1内，保护软套管1的喇叭 口往外翻转，从而在支架取出过程中，保护软套管1的口部始终与食管支 架不接触，从而防止回收食管支架的时候，因为食管支架的牵带而使保护 软套管1的口部往内翻导致口部闭合。Referring to Fig. 1 and Fig. 2, the protectivesoft sheath 1 is made of rubber material and has a certain degree of toughness, so that when the esophageal stent is received into the tube, the protectivesoft sheath 1 is trumpet-shaped at the same time, which makes it easier for the esophageal stent to be removed from the tube. The enlarged bell mouth enters into the protectivesoft sheath 1, and the bell mouth of the protectivesoft sheath 1 is turned outward, so that during the stent removal process, the mouth of the protectivesoft sheath 1 is always out of contact with the esophageal stent, thereby preventing the recovery of the esophageal stent When the esophageal stent is dragged, the mouth of the protectivesoft sheath 1 is turned inward and the mouth is closed.

参见图1至图6所示，保护软套管1的内部一体成型有基座5，基座5 上周向阵列有多个轴安装槽4，本实施例中，优选为三个安装槽4，安装槽 4贯穿基座5的上下端面，每个安装槽4内设置有一个开合机构，其中，每 个开合机构包括转轴6、绕线轮7以及卷簧8，具体来说：Referring to Fig. 1 to Fig. 6, the inside of the protectivesoft sleeve 1 is integrally formed with a base 5, and the base 5 has a plurality ofshaft installation grooves 4 arrayed in the circumferential direction. In this embodiment, threeinstallation grooves 4 are preferred. , theinstallation groove 4 runs through the upper and lower end surfaces of the base 5, and an opening and closing mechanism is arranged in eachinstallation groove 4, wherein each opening and closing mechanism includes arotating shaft 6, awinding wheel 7 and acoil spring 8, specifically:

转轴6水平的安装于安装槽4内，且安装槽4的两侧端部设置有轴孔， 转轴6插接于轴孔内，二者间隙配合，从而使得转轴6可以在安装槽4内 自由转动，转轴6为台阶轴，其两端轴径大，而中间轴径小，夹臂3的一 端设置有插孔，夹臂3通过插孔过盈的套装于转轴6上，随转轴6转动。 夹臂3远离基座5的一端为钝性头，避免夹臂3划伤内镜孔道，而多个夹臂3之间相互闭合后，闭合后形如金字塔状，且闭合的相邻夹臂3之间侧 面彼此相贴合，但中间留有空隙，在夹臂3靠近于基座5的一侧间隔的熔 接有多个金属钩10，金属钩10倾斜向下，这样在夹臂3展开时，金属钩 10才能呈水平状态，在夹臂3打开后，夹臂3将食管支架夹在中间，金属 钩10插入食管支架的网孔内，在夹臂3闭合后，从而对食管支架进行夹持。The rotatingshaft 6 is horizontally installed in themounting groove 4, and the ends on both sides of themounting groove 4 are provided with shaft holes. Rotate, therotating shaft 6 is a step shaft, the shaft diameter at both ends is large, and the middle shaft diameter is small, one end of theclamp arm 3 is provided with a socket, theclamp arm 3 is fitted on therotating shaft 6 through the socket interference, and rotates with therotating shaft 6 . The end of theclamping arm 3 away from the base 5 is a blunt head, which prevents theclamping arm 3 from scratching the endoscope channel, and after the multiple clampingarms 3 are closed to each other, they are shaped like a pyramid after closing, and the closed adjacent clamping arms The sides of the 3 are attached to each other, but there is a gap in the middle, and a plurality of metal hooks 10 are welded at intervals on the side of theclamp arm 3 close to the base 5, and the metal hooks 10 are inclined downward, so that when theclamp arm 3 is unfolded When theclamp arm 3 is opened, theclamp arm 3 clamps the esophageal support in the middle, and themetal hook 10 is inserted into the mesh of the esophageal support. After theclamp arm 3 is closed, the esophageal support is carried out. clamping.

卷簧8则套设于转轴6的一端，且转轴6转动时，能收紧或放松卷簧8， 卷簧8与转轴6的连接属于常规技术，和发条结构类似。而绕线轮7过盈 套装于转轴6上，且绕线轮7上缠绕有丝线9，当丝线9往下手柄部2一侧 后拉时，绕线轮7转动释放丝线9，绕线轮7转动的同时，夹臂3随转轴6 转动而打开，此时卷簧8被收紧在转轴6上，当松开丝线9后，卷簧8恢 复原状态而是转轴6以相反的方向转动，使丝线9重新缠绕在绕线轮7上， 而夹臂3也重新闭合。Thecoil spring 8 is sheathed on one end of therotating shaft 6, and when therotating shaft 6 rotates, thecoil spring 8 can be tightened or loosened. The connection between thecoil spring 8 and therotating shaft 6 belongs to conventional technology, similar to a spring structure. And the windingwheel 7 is fitted on therotating shaft 6 with an interference fit, and the windingwheel 7 is wound with asilk thread 9. When thesilk thread 9 is pulled back to thehandle part 2 side, the windingwheel 7 rotates and releases thesilk thread 9, and the windingwheel 7. While rotating, theclip arm 3 opens with the rotation of therotating shaft 6. At this time, thecoil spring 8 is tightened on therotating shaft 6. When thesilk thread 9 is loosened, thecoil spring 8 returns to its original state and therotating shaft 6 rotates in the opposite direction. , so that thewire 9 is rewound on thereel 7, and theclamp arm 3 is also reclosed.

手柄部2则通过固定熔接的方式固定于保护软套管1的远端，且手柄部 2设置有操作组件，操作组件用于控制开合机构实现夹臂3的同步开合。具 体来说，操作组件包括操作柄11以及牵引丝14，其中：Thehandle part 2 is fixed on the far end of the protectivesoft sleeve 1 by means of fixed welding, and thehandle part 2 is provided with an operating assembly, which is used to control the opening and closing mechanism to realize the synchronous opening and closing of theclamp arm 3. Specifically, the operating assembly includes anoperating handle 11 and a pullingwire 14, wherein:

操作柄11的居中位置开设有滑道孔，操作柄11通过滑道孔套设于手柄 部2，于是操作柄11可以沿着手柄部2来回滑动。操作柄11的相对两端一 体成型有指环孔12，通过指环孔12便于一端操作柄11。The center position of theoperating handle 11 is provided with a slideway hole, and theoperating handle 11 is sleeved on thehandle part 2 through the slideway hole, so that the operating handle 11 can slide back and forth along thehandle part 2. The opposite two ends of operatinghandle 11 are integrally formed withfinger ring hole 12, are convenient to oneend operating handle 11 byfinger ring hole 12.

而手柄部2的居中位置沿其长度方向开设有滑槽13，牵引丝14的一端 与操作柄11固定连接，而牵引丝14的另一端则沿着滑槽13延伸至与每一 根丝线9固定连接，于是通过滑动操作柄11便可以通过牵引丝14带动丝 线9，使转轴6转动。And the center position ofhandle portion 2 is provided withchute 13 along its length direction, and one end oftraction wire 14 is fixedly connected with operatinghandle 11, and the other end oftraction wire 14 then extends alongchute 13 to eachwire 9 Fixedly connected, so by sliding theoperating handle 11, thewire 9 can be driven by the pullingwire 14 to make therotating shaft 6 rotate.

综上所述，本实施例提供的支架取出器，其使用方法和工作原理是：In summary, the use method and working principle of the stent extractor provided in this embodiment are as follows:

首先在伸入内镜活检孔道之前，需要往后滑动操作柄11，使夹臂3微微 张开，助手带上无菌手套，手动把保护软套管1内折夹进夹臂3之间的间 隙，然后闭合夹臂3夹紧保护软套管1，既能缩小体积，同时也可以包住夹 臂3，防止内镜活检孔道的划损；需要注意的是：要求夹臂3的先端不能超 过保护软套管1的最外缘，这样就能实现夹臂3夹住保护软套管1，先端在 保护软套管1中，而不超过保护软套管1First, before extending into the biopsy channel of the endoscope, it is necessary to slide the operating handle 11 backward to slightly open theclamp arm 3, and the assistant puts on sterile gloves, and manually folds the protectivesoft sleeve 1 into the gap between theclamp arms 3 gap, and then close theclamp arm 3 to clamp the protectivesoft sleeve 1, which can not only reduce the size, but also wrap theclamp arm 3 to prevent scratching of the endoscopic biopsy channel; it should be noted that the tip of theclamp arm 3 must not Exceed the outermost edge of the protectivesoft sleeve 1, so that theclamp arm 3 can clamp the protectivesoft sleeve 1, and the tip is in the protectivesoft sleeve 1 without exceeding the protectivesoft sleeve 1

接着，将保护软套管1沿着内镜活检孔道送入，在内镜协助下使保护软 套管1的口部对准食管支架；Next, send the protectivesoft sheath 1 along the biopsy channel of the endoscope, and align the mouth of the protectivesoft sheath 1 with the esophageal stent with the assistance of the endoscope;

然后，往后滑动操作柄11，操作柄11带动牵引丝14往后移动，牵引丝 14拉动丝线9使绕线轮7转动释放丝线9，绕线轮7转动使得转轴6同步 转动，转轴6转动使夹臂3打开，而卷簧8则被收紧在转轴6上，夹臂3 打开后，将保护软套管1往前送，使食管支架进入夹臂3之间，利用夹臂3 上的金属钩10插入食管支架的网孔内，卡住支架，从而方便夹臂3闭合， 而避免闭合的过程中支架滑脱，进一步利用夹臂3闭合时是角锥体，压缩 支架体积成角锥体，而且稳定；Then, slide thehandle 11 backwards, thehandle 11 drives the pullingwire 14 to move backward, the pullingwire 14 pulls thewire 9 to make thereel 7 rotate and release thewire 9, thereel 7 rotates so that therotating shaft 6 rotates synchronously, and therotating shaft 6 rotates Theclamp arm 3 is opened, and thecoil spring 8 is tightened on therotating shaft 6. After theclamp arm 3 is opened, the protectivesoft sheath 1 is moved forward, so that the esophageal stent enters between theclamp arms 3, and theThe metal hook 10 of themetal hook 10 is inserted into the mesh of the esophageal stent to block the stent, thereby facilitating the closing of theclamp arm 3, and avoiding the stent slipping during the closing process, further utilizing theclamp arm 3 to be a pyramid when closed, and compressing the volume of the stent to form a pyramid body, and stable;

最后，松开操作柄11，此时卷簧8恢复原状态，使转轴6反向转动，于 是夹臂3闭合，同时绕线轮7将丝线9重新缠绕，而由于夹臂3之间夹持 有食管支架，卷簧8不会完全恢复原状态，从而对食管支架形成夹持力， 更容易将食管支架脱出。然后操作手柄，回拉夹子，从而将支架回收至保 护软套管1中，再用力回拉，使整个支架(包括未被压缩的另一端支架部分，一起收入取出器中)。注意此时因为保护软套管1内含有支架，体积 为其最大体积，不能收入内镜活检孔道，而是随内镜带出；另外要尽量把 支架拽进保护软套管1内。Finally, unclamp the operatinghandle 11, and now thecoil spring 8 returns to its original state, so that therotating shaft 6 rotates in the opposite direction, so theclamp arm 3 is closed, and the windingwheel 7 rewinds thesilk thread 9 at the same time, and due to the clamping between theclamp arms 3 With the esophageal stent, thecoil spring 8 will not completely return to its original state, thereby forming a clamping force on the esophageal stent, making it easier to dislodge the esophageal stent. Then operate the handle and pull back the clip, so that the support is recovered into the protectivesoft sleeve 1, and then pulled back firmly, so that the whole support (including the uncompressed other end support part, is received together in the extractor). Note that at this time, because the protectivesoft sheath 1 contains a stent, its volume is its maximum volume, and it cannot be put into the biopsy channel of the endoscope, but is taken out with the endoscope; in addition, the stent should be pulled into the protectivesoft sheath 1 as much as possible.

以上仅为本发明的优选实施例而已，并不用于限制本发明，对于本领 域技术人员而言，显然本申请不限于上述示范性实施例的细节，而且在不 背离本申请的精神或基本特征的情况下，能够以其它的具体形式实现本申 请。The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, it is obvious that the application is not limited to the details of the above-mentioned exemplary embodiments, and does not deviate from the spirit or basic characteristics of the application. In some cases, the present application can be implemented in other specific forms.

因此，无论从哪一点来看，均应将实施例看作是示范性的，而且是非 限制性的，本申请的范围由所附权利要求而不是上述说明限定，因此旨在 将落在权利要求的等同要件的含义和范围内的所有变化囊括在本申请内。 不应将权利要求中的任何附图标记视为限制所涉及的权利要求。对于本领 域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和 原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。Therefore, the embodiments should be regarded as exemplary and not restrictive in all points of view, and the scope of the application is defined by the appended claims rather than the foregoing description, and it is intended that the scope of the present application be defined by the appended claims rather than by the foregoing description. All changes within the meaning and range of equivalents of the elements are embraced in this application. Any reference sign in a claim should not be construed as limiting the claim concerned. Various modifications and variations of the present invention will occur to those skilled in the art. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (10)

Translated fromChinese

1.一种支架取出器，其特征在于，包括：1. A stent extractor, characterized in that, comprising:保护软套管(1)，所述保护软套管(1)呈喇叭状，保护软套管(1)的喇叭口往外翻折；The protective soft sleeve (1), the protective soft sleeve (1) is in the shape of a trumpet, and the bell mouth of the protective soft sleeve (1) is folded outward;夹臂(3)，多个所述的夹臂(3)可开合的设置于所述保护软套管(1)内，且所述保护软套管(1)可受外力而包裹所述夹臂(3)；Clamping arm (3), a plurality of clamping arms (3) can be opened and closed in the protective soft sleeve (1), and the protective soft sleeve (1) can be subjected to external force to wrap the Jaw arm (3);开合机构，多个所述的开合机构周向阵列于所述保护软套管(1)内，且所述开合机构与所述夹臂(3)一一对应连接，以控制所述夹臂(3)同步开合；An opening and closing mechanism, a plurality of the opening and closing mechanisms are circumferentially arrayed in the protective soft sleeve (1), and the opening and closing mechanisms are connected to the clamp arms (3) in one-to-one correspondence to control the The clamp arm (3) opens and closes synchronously;以及手柄部(2)，所述手柄部(2)设置于所述保护软套管(1)的远端，且所述手柄部(2)设置有操作组件，所述操作组件用于控制开合机构实现夹臂(3)的同步开合。And a handle part (2), the handle part (2) is arranged on the distal end of the protective soft sleeve (1), and the handle part (2) is provided with an operating component, and the operating component is used to control the opening The closing mechanism realizes the synchronous opening and closing of the clamp arm (3).2.根据权利要求1所述的支架取出器，其特征在于，所述保护软套管(1)内设置有基座(5)，所述开合机构周向阵列于所述基座(5)上。2. The stent extractor according to claim 1, characterized in that a base (5) is arranged inside the protective soft sleeve (1), and the opening and closing mechanism is arrayed circumferentially on the base (5). )superior.3.根据权利要求2所述的支架取出器，其特征在于，所述开合机构包括：3. The stent extractor according to claim 2, wherein the opening and closing mechanism comprises:转轴(6)，所述转轴(6)转动设置于所述基座(5)内，所述夹臂(3)固定设置于所述转轴(6)上；A rotating shaft (6), the rotating shaft (6) is rotatably arranged in the base (5), and the clamp arm (3) is fixedly arranged on the rotating shaft (6);绕线轮(7)，所述绕线轮(7)固定设置于所述转轴(6)，所述绕线轮(7)上缠绕有丝线(9)，所述丝线(9)与所述操作组件连接；A winding wheel (7), the winding wheel (7) is fixedly arranged on the rotating shaft (6), the winding wheel (7) is wound with a silk thread (9), and the silk thread (9) and the Operating component connections;卷簧(8)，所述卷簧(8)设置于所述转轴(6)的一端，且当所述绕线轮(7)带动所述转轴(6)转动使夹臂(3)打开时，所述卷簧(8)卷绕于所述转轴(6)呈收紧状态。A coil spring (8), the coil spring (8) is arranged at one end of the rotating shaft (6), and when the winding wheel (7) drives the rotating shaft (6) to rotate to open the clamp arm (3) , the coil spring (8) is wound around the rotating shaft (6) in a tightened state.4.根据权利要求3所述的支架取出器，其特征在于，所述基座(5)内周向阵列有若干安装槽(4)，所述安装槽(4)贯穿所述基座(5)的上端面和下端面，所述转轴(6)水平的转动安装于所述安装槽(4)内。4. The bracket extractor according to claim 3, characterized in that, there are several installation grooves (4) in the inner circumferential array of the base (5), and the installation grooves (4) run through the base (5) ), the rotating shaft (6) is horizontally rotatably installed in the mounting groove (4).5.根据权利要求3所述的支架取出器，其特征在于，所述夹臂(3)靠近于所述基座(5)的一侧间隔设置有多个金属钩(10)。5. The bracket extractor according to claim 3, characterized in that, a plurality of metal hooks (10) are arranged at intervals on one side of the clamp arm (3) close to the base (5).6.根据权利要求3所述的支架取出器，其特征在于，所述操作组件包括：6. The stent extractor according to claim 3, wherein the operating assembly comprises:操作柄(11)，所述操作柄(11)滑动设置于所述手柄部(2)；An operating handle (11), the operating handle (11) is slidably arranged on the handle portion (2);牵引丝(14)，所述牵引丝(14)的一端与所述操作柄(11)固定连接，所述操作丝的另一端与所述丝线(9)连接。A pulling wire (14), one end of the pulling wire (14) is fixedly connected to the operating handle (11), and the other end of the operating wire is connected to the wire (9).7.根据权利要求6所述的支架取出器，其特征在于，所述手柄部(2)沿其长度方向设置有滑槽(13)，所述牵引丝(14)沿所述滑槽(13)布置。7. The bracket extractor according to claim 6, characterized in that, the handle part (2) is provided with a chute (13) along its length direction, and the pulling wire (14) is arranged along the chute (13). ) arrangement.8.根据权利要求7所述的支架取出器，其特征在于，所述操作柄(11)的居中位置开设有滑道孔，所述操作柄(11)通过滑道孔套设于所述手柄部(2)。8. The bracket extractor according to claim 7, characterized in that a slideway hole is provided at the center of the operating handle (11), and the operating handle (11) is sleeved on the handle through the slideway hole Department (2).9.根据权利要求6所述的支架取出器，其特征在于，所述操作柄(11)的相对两端设置有指环孔(12)。9. The stent extractor according to claim 6, characterized in that ring holes (12) are provided at opposite ends of the operating handle (11).10.根据权利要求1所述的支架取出器，其特征在于，所述夹臂(3)的前端为钝性头。10. The stent extractor according to claim 1, characterized in that, the front end of the clamp arm (3) is a blunt head.

Images