CN114788722A - Multi-stage reducing plug-taking micro-bracket - Google Patents
Multi-stage reducing plug-taking micro-bracketDownload PDFInfo
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- A61B17/22—Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; for removing obstructions in blood vessels, not otherwise provided for
- A61B17/221—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/22—Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; for removing obstructions in blood vessels, not otherwise provided for
- A61B17/221—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions
- A61B2017/2212—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions having a closed distal end, e.g. a loop
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Abstract
Translated fromChinese
Description
Translated fromChinese技术领域technical field
本发明涉及医疗器械技术领域，具体来说，涉及一种多级变径取栓微支架。The invention relates to the technical field of medical devices, in particular to a multi-stage variable-diameter thrombectomy micro-support.
背景技术Background technique
我国脑卒中发病人群约1755万，2018年中国脑血管病的死亡率为149.49/10万，造成了157万人死亡。中国心血管健康与疾病报告2020称：脑卒中人数为1300万；常规溶栓中血栓极易在回收过程中从取栓器上脱落，需要反复捕获，既增加了病人的痛苦，又延长了手术时间，还增加了远端血管堵塞的风险，因此，目前针对小微血栓的脑动脉栓塞除了常规溶栓外，没有适用的微小取栓支架用于机械取栓，治疗手段十分有限。There are about 17.55 million people with stroke in my country. In 2018, the mortality rate of cerebrovascular disease in China was 1.4949/100,000, resulting in 1.57 million deaths. According to the China Cardiovascular Health and Disease Report 2020: the number of strokes is 13 million; the thrombus easily falls off the thrombectomy device during the recovery process in conventional thrombolysis, which requires repeated capture, which not only increases the pain of the patient, but also prolongs the operation. Time also increases the risk of distal vascular occlusion. Therefore, in addition to conventional thrombolysis, currently there is no suitable micro-thrombectomy stent for mechanical thrombectomy for cerebral artery embolization for small microthrombosis, and the treatment methods are very limited.
针对相关技术中的问题，目前尚未提出有效的解决方案。For the problems in the related technologies, no effective solutions have been proposed so far.
发明内容SUMMARY OF THE INVENTION
针对相关技术中的问题，本发明提出一种多级变径取栓微支架，以克服现有相关技术所存在的上述技术问题。In view of the problems in the related art, the present invention proposes a multi-stage variable diameter thrombectomy micro-support to overcome the above-mentioned technical problems existing in the related art.
为此，本发明采用的具体技术方案如下：For this reason, the concrete technical scheme that the present invention adopts is as follows:
一种多级变径取栓微支架，包括手柄和取栓支架，所述手柄位于所述取栓支架的一端，所述取栓支架的一端与所述手柄之间设置有输送管，所述输送管的中部设置有穿插至所述手柄内部的牵引丝，所述取栓支架包括导头和网格网架，所述牵引丝的一端穿插所述网格网架的中部与所述导头连接，所述导头的前端设置有封堵伞，所述手柄的上端中部设置有滑动槽，所述手柄的上端中部设置有与所述牵引丝相配合连接的推扭，所述推扭的中部设置有放置槽，所述放置槽的内部设置有弹性伸缩杆，所述弹性伸缩杆的上端设置有按钮，所述按钮的一端设置有延伸块，所述延伸块的中部设置有与所述推扭相连接的转动轴杆，所述延伸块的一端设置有限位块。A multi-stage variable diameter thrombus-removing micro-support, comprising a handle and a bolus-removing bracket, the handle is located at one end of the bolus-removing bracket, and a conveying tube is arranged between one end of the bolus-removing bracket and the handle, and the The middle part of the conveying tube is provided with a traction wire inserted into the inside of the handle, the bolt-removing bracket includes a guide head and a grid grid, and one end of the traction wire is inserted into the middle of the grid grid and the guide head. The front end of the guide head is provided with a blocking umbrella, the middle of the upper end of the handle is provided with a sliding groove, and the middle of the upper end of the handle is provided with a push-torque that is matched with the traction wire. The middle part is provided with a placement slot, the interior of the placement slot is provided with an elastic telescopic rod, the upper end of the elastic telescopic rod is provided with a button, one end of the button is provided with an extension block, and the middle part of the extension block is provided with the Push and twist the connected rotating shafts, and one end of the extension block is provided with a limit block.
进一步的，所述手柄的一端设置有防脱凹槽，所述手柄的中部为弧形结构，所述手柄位于弧形结构的两端均设置有防滑凹槽。Further, one end of the handle is provided with an anti-slip groove, the middle of the handle is an arc structure, and both ends of the handle located in the arc structure are provided with anti-slip grooves.
进一步的，所述手柄的下端设置有防脱伸缩带，所述防脱伸缩带的中部设置有收缩调节件。Further, the lower end of the handle is provided with an anti-detachment telescopic belt, and the middle part of the anti-detachment telescopic belt is provided with a shrinkage adjustment member.
进一步的，所述手柄的下端两侧均设置有安装孔，所述防脱伸缩带的两端均设置有与所述安装孔相连接的卡扣。Further, both sides of the lower end of the handle are provided with mounting holes, and both ends of the anti-releasing telescopic belt are provided with buckles connected with the mounting holes.
进一步的，所述手柄的两侧均设置有刻度尺，所述刻度尺上设置有若干刻度数字。Further, scales are arranged on both sides of the handle, and several scale numbers are arranged on the scales.
进一步的，所述网格网架的两端分别设置有显影环一和显影环二，所述显影环一位于所述导头与所述网格网架之间，所述显影环二位于所述输送管与所述网格网架之间。Further, both ends of the grid frame are respectively provided with a developing
进一步的，所述按钮的下端与所述弹性伸缩杆之间设置有滑板，所述滑板的两端两侧的滑块与所述推扭内壁滑槽相配合连接。Further, a sliding plate is arranged between the lower end of the button and the elastic telescopic rod, and the sliding blocks on both ends of the sliding plate are matched and connected with the sliding grooves on the inner wall of the push-torque.
进一步的，所述限位块的下端设置有橡胶限位垫，所述橡胶限位垫的下端设置有若干斜齿，所述手柄的上端中部设置有与所述斜齿相配合的斜槽。Further, the lower end of the limiting block is provided with a rubber limiting pad, the lower end of the rubber limiting pad is provided with a plurality of helical teeth, and the middle part of the upper end of the handle is provided with an oblique groove matched with the helical teeth.
本发明的有益效果为：通过先在血管内插入导管，取栓支架在导管内取血栓，取栓支架通过手柄控制可以伸缩，手柄调控取栓支架大小，并进行显影追踪、特殊的编制技术；更好的更快捕获血栓，配合推扭和按钮的配合，提高了取栓支架的可操作性，更安全的在收回过程中取出血栓，增加了实用性。The beneficial effects of the present invention are as follows: by inserting a catheter into the blood vessel first, the thrombus-retrieving stent is used to retrieve the thrombus in the catheter, the thrombus-retrieving stent can be stretched and retracted by the handle, the handle regulates the size of the thrombus-retrieving stent, and the development tracking and special weaving techniques are performed; Better and faster thrombus capture, with the cooperation of push-twist and buttons, improves the operability of the thrombectomy stent, safely removes thrombus during the retraction process, and increases practicability.
附图说明Description of drawings
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，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的附图。In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some of the present invention. In the embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.
图1是根据本发明实施例的一种多级变径取栓微支架的结构示意图；Fig. 1 is the structural representation of a kind of multi-stage variable diameter thrombectomy micro-support according to an embodiment of the present invention;
图2是根据本发明实施例的一种多级变径取栓微支架的手柄俯视图；2 is a top view of a handle of a multi-stage variable diameter thrombus removal micro-support according to an embodiment of the present invention;
图3是根据本发明实施例的一种多级变径取栓微支架的推扭结构示意图；3 is a schematic diagram of a push-torsion structure of a multi-stage variable diameter thrombus removal micro-support according to an embodiment of the present invention;
图4是根据本发明实施例的一种多级变径取栓微支架的取栓支架输送状态示意图一；4 is a schematic diagram 1 of the delivery state of a thrombus removal stent of a multi-stage variable diameter thrombectomy micro-stent according to an embodiment of the present invention;
图5是根据本发明实施例的一种多级变径取栓微支架的取栓支架输送状态示意图二；5 is a schematic diagram 2 of the delivery state of a thrombectomy stent of a multi-stage variable diameter thrombectomy micro stent according to an embodiment of the present invention;
图6是根据本发明实施例的一种多级变径取栓微支架的取栓支架输送状态示意图三；6 is a schematic diagram three of the delivery state of a thrombectomy stent of a multi-stage variable diameter thrombectomy micro stent according to an embodiment of the present invention;
图7是根据本发明实施例的一种多级变径取栓微支架的取栓支架输送状态示意图四；7 is a schematic diagram 4 of the delivery state of a thrombectomy stent of a multi-stage variable diameter thrombectomy micro stent according to an embodiment of the present invention;
图8是根据本发明实施例的一种多级变径取栓微支架的封堵伞示意图；8 is a schematic diagram of a blocking umbrella for a multi-stage variable diameter thrombus removal micro-support according to an embodiment of the present invention;
图9是根据本发明实施例的一种多级变径取栓微支架的封堵伞示意图；9 is a schematic diagram of a blocking umbrella for a multi-stage variable diameter thrombus removal micro-support according to an embodiment of the present invention;
图10是根据本发明实施例的一种多级变径取栓微支架的封堵伞示意图。Fig. 10 is a schematic diagram of a blocking umbrella of a multi-stage variable diameter thrombus removal micro-stent according to an embodiment of the present invention.
图中：In the picture:
1、手柄；2、取栓支架；3、输送管；4、牵引丝；5、导头；6、网格网架；7、推扭；8、放置槽；9、弹性伸缩杆；10、按钮；11、延伸块；12、转动轴杆；13、限位块；14、防脱凹槽；15、防滑凹槽；16、防脱伸缩带；17、收缩调节件；18、刻度尺；19、显影环一；20、显影环二；21、滑板；22、橡胶限位垫；23、斜齿；24、斜槽；25、滑动槽，26、推进导管，27、滑套块，28、自扩展支架。1. Handle; 2. Bolt removal bracket; 3. Conveying pipe; 4. Pull wire; 5. Guide head; 6. Grid grid; 7. Push and twist; 8. Placement slot; 9. Elastic telescopic rod; 10. Button; 11. Extension block; 12. Rotating shaft; 13. Limit block; 14. Anti-dropping groove; 15. Anti-slip groove; 16. Anti-dropping telescopic belt; 19.
具体实施方式Detailed ways
为进一步说明各实施例，本发明提供有附图，这些附图为本发明揭露内容的一部分，其主要用以说明实施例，并可配合说明书的相关描述来解释实施例的运作原理，配合参考这些内容，本领域普通技术人员应能理解其他可能的实施方式以及本发明的优点，图中的组件并未按比例绘制，而类似的组件符号通常用来表示类似的组件。In order to further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention, and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operation principles of the embodiments. For these, those of ordinary skill in the art will understand other possible implementations and the advantages of the present invention. Components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.
根据本发明的实施例，提供了一种多级变径取栓微支架。According to an embodiment of the present invention, a multi-stage variable diameter thrombectomy micro stent is provided.
实施例一：Example 1:
如图1-8所示，根据本发明实施例的多级变径取栓微支架，包括手柄1和取栓支架2，所述手柄1位于所述取栓支架2的一端，所述取栓支架2的一端与所述手柄1之间设置有输送管3，所述输送管3的中部设置有穿插至所述手柄1内部的牵引丝4，所述取栓支架2包括导头5和网格网架6，所述牵引丝4的一端穿插所述网格网架6的中部与所述导头5连接，所述导头5的前端设置有封堵伞，所述手柄1的上端中部设置有滑动槽25，所述手柄1的上端中部设置有与所述牵引丝4相配合连接的推扭7，所述推扭7的中部设置有放置槽8，所述放置槽8的内部设置有弹性伸缩杆9，所述弹性伸缩杆9的上端设置有按钮10，所述按钮10的一端设置有延伸块11，所述延伸块11的中部设置有与所述推扭7相连接的转动轴杆12，所述延伸块11的一端设置有限位块13。As shown in FIGS. 1-8 , the multi-stage variable diameter thrombus removal micro-support according to an embodiment of the present invention includes a
实施例二：Embodiment 2:
如图1-10所示，所述手柄1的一端设置有防脱凹槽14，所述手柄1的中部为弧形结构，所述手柄1位于弧形结构的两端均设置有防滑凹槽15。所述手柄1的下端设置有防脱伸缩带16，所述防脱伸缩带16的中部设置有收缩调节件17。所述手柄1的下端两侧均设置有安装孔，所述防脱伸缩带16的两端均设置有与所述安装孔相连接的卡扣。所述手柄1的两侧均设置有刻度尺18，所述刻度尺18上设置有若干刻度数字。As shown in Figures 1-10, one end of the
如图1-10所示，所述网格网架6的两端分别设置有显影环一19和显影环二20，所述显影环一19位于所述导头5与所述网格网架6之间，所述显影环二20位于所述输送管3与所述网格网架6之间。所述按钮10的下端与所述弹性伸缩杆9之间设置有滑板21，所述滑板21的两端两侧的滑块与所述推扭7内壁滑槽相配合连接。所述限位块13的下端设置有橡胶限位垫22，所述橡胶限位垫22的下端设置有若干斜齿23，所述手柄1的上端中部设置有与所述斜齿23相配合的斜槽24。As shown in FIG. 1-10 , two ends of the
为了方便理解本发明的上述技术方案，以下就本发明在实际过程中的工作原理或者操作方式进行详细说明。In order to facilitate the understanding of the above technical solutions of the present invention, the working principle or operation mode of the present invention in the actual process will be described in detail below.
在实际应用时，网格网架6有最小0.5-2mm的取栓直径，使得网格网架6的网格间隙由近端至远端逐渐缩小，疏密相配合的网格设计，保证取栓支架2能快速嵌入血管内的同时增加了取栓支架2与血栓的结合和捕捞能力，配合取栓支架2上网格网架6的密度，可有效防止碎小的血栓栓子从支架上脱落减少取栓支架2在穿越血管时对血管壁的损伤，通过设置软性导头5，增加了取栓支架的柔顺性；In practical application, the
通过导头5前面加一个封堵伞，牵引丝4可以关闭封堵伞，膨胀的话不需要，自动张开，关闭时通过牵引丝4关闭，封堵伞的外部包覆有气囊；具体地，封堵伞包括支架推进导管26，推进导管26上套设有与其相匹配的滑套块27，滑套块27上环绕设有若干均匀分布的所述自扩展支架28，通过牵引丝4牵引滑动滑套块27实现自扩展支架的打开或者收缩，所述自扩展支架28上套设有与其相匹配的气囊。在处理颈动脉狭窄血管内皮成型术支架植入均能通过自扩展支架形成栓塞保护，操作简单方便，气囊在自扩展支架上膨胀提供了颈动脉的完全可靠阻塞，简化了后续步骤中的导管操作。By adding a blocking umbrella in front of the guide head 5, the traction wire 4 can close the blocking umbrella. If it is expanded, it does not need to be opened automatically. When it is closed, it is closed by the traction wire 4, and the outside of the blocking umbrella is covered with an airbag; specifically, The blocking umbrella includes a
通过推扭7与牵引丝4的配合，提高了取栓支架2的可操作性，并在刻度尺18下，精确的控制之间的位置，同时，在使用时，按钮10随着推扭7的使用中向下，按钮10通过滑板21挤压弹性伸缩杆9，在转动轴杆12的作用下使得一端的限位块13向上移动，当推扭7停止移动后，松动按钮10，使得在弹性伸缩杆9的作用下将限位块13以及底端的橡胶限位垫22与斜槽24连接，从而达到限位的作用，通过推扭7调节好取栓支架2的直径，按钮10锁定推扭7并固定取栓支架2的直径，防止误差出现，更安全的在收回过程中取出血栓。Through the cooperation of the push-
综上所述，借助于本发明的上述技术方案，通过先在血管内插入导管，取栓支架2在导管内取血栓，取栓支架2通过手柄1控制可以伸缩，手柄1调控取栓支架2大小，并进行显影追踪、特殊的编制技术；更好的更快捕获血栓，配合推扭7和按钮10的配合，提高了取栓支架的可操作性，更安全的在收回过程中取出血栓，增加了实用性。To sum up, with the help of the above technical solutions of the present invention, by inserting a catheter into the blood vessel first, the
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，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。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the present invention. within the scope of protection.
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Cited By (1)
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| CN114788722B (en) | 2025-09-16 |
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