CN102499734B - Remover for thrombus in stents - Google Patents
Remover for thrombus in stents Download PDFInfo
- Publication number
- CN102499734B CN102499734B CN 201110365475 CN201110365475A CN102499734B CN 102499734 B CN102499734 B CN 102499734B CN 201110365475 CN201110365475 CN 201110365475 CN 201110365475 A CN201110365475 A CN 201110365475A CN 102499734 B CN102499734 B CN 102499734B
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- wheel shaft
- stents
- thrombus
- remover
- driving device
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Abstract
The invention discloses a remover for thrombus in stents, which belongs to the technical field of medical instruments and comprises cutter blades, an axle, a driving device, an elastic filter screen and a guide wire. The cutter blades are arranged at the top end of the axle, the tail end of the axle is mounted in the driving device, the guide wire penetrates through the driving device and the axle, and the elastic filter screen is arranged at the front end of the guide wire. The remover for thrombus in stents has the advantages that by means of percutaneous puncture, the cutter blades in high-speed rotation can remove thrombus in endovascular stents or hyperplastic vascular endothelium thoroughly, the problem of restenosis of the endovascular stents after the endovascular stents are implanted can be solved, and accordingly minimally invasive treatment effect can be achieved and suffering of patients is relieved; besides, the remover is evident in effect and convenient in use.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, specifically a kind of thrombus in stents remover, belong to the medical apparatus and instruments technical field.
Background technology
Endovascular stent is a kind of metallicity eyelid retractor that is placed in human vas, have narrow blood vessel, the unobstructed effect of assurance regional flow of strutting, the endovascular stent technology is used widely clinically (as coronary stent, carotid stents, the arteria iliacofemoralis support, the postcava support, hepatic vein support, iliac vein support etc.).Because endovascular stent is rough, easily forms thrombosis and with causing the blood vessel endothelium hypertrophy, restenosis occurs.Generally the processing of endovascular stent restenosis is thrombolytic or uses balloon expandable to treat, fail the tissue of thrombosis and hypertrophy is removed because balloon expandable can only play local squeezing action, therefore how undesirable effect is, be difficult to remove.
Summary of the invention
Problem for above-mentioned prior art existence, the invention provides a kind of thrombus in stents remover, drive blade cutting knife fast rotational on wheel shaft by driving device, can be with the thrombosis in endovascular stent and endotheliosis complete resection, reclaim the thrombosis excise and the blood vessel endothelium tissue of hypertrophy through defecator, thereby reach the purpose of dredging vascellum inner support.
To achieve these goals, the technical solution used in the present invention is: a kind of thrombus in stents remover, comprise blade cutting knife, wheel shaft, driving device and elasticity drainage screen, the blade cutting knife is arranged on the wheel shaft front end, the wheel shaft end is arranged in driving device, and the elasticity filter screen device is in axle tip, and the blade cutting knife is attached on wheel shaft when static, automatically open during rotation and rotary-cut, during rotation, the diameter of blade cutting knife is consistent with the diameter of endovascular stent.
Further, the elasticity drainage screen is connected with wheel shaft by the wheel mandrel connector.
Further, the length of wheel shaft and the catheter length of its coupling adapt, and the diameter of wheel shaft and the catheter diameter of its coupling adapt.
The invention has the beneficial effects as follows: by the percutaneous puncture approach, utilize the blade cutting knife of high speed rotating the blood vessel endothelium of the thrombosis in endovascular stent or hypertrophy thoroughly can be removed, restenosis after endovascular stent is implanted is solved, thereby reach the minimally-invasive treatment effect, alleviated patient's misery, successful, easy to use.
Description of drawings
Fig. 1 is structural representation of the present invention.
In figure: 1, blade cutting knife, 2, wheel shaft, 3, driving device, 4, the elasticity drainage screen, 5, the wheel mandrel connector.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of thrombus in stents remover comprises blade cutting knife 1, wheel shaft 2, driving device 3 and elasticity drainage screen 4, and blade cutting knife 1 is arranged on wheel shaft 2 front ends, and wheel shaft 2 ends are arranged in driving device 3, and elasticity drainage screen 4 devices are on wheel shaft 2 tops; Elasticity drainage screen 4 is connected with wheel shaft 2 by wheel mandrel connector 5; Blade cutting knife 1 is attached on wheel shaft 2 when static, automatically open and cut during rotation and revolve, during rotation, the diameter of blade cutting knife 1 is consistent with the diameter of endovascular stent, and the length of wheel shaft 2 and the catheter length of its coupling adapt, and the diameter of wheel shaft 2 and the catheter diameter of its coupling adapt.
during use, utilize the percutaneous puncture approach, at first with in the conduit intravasation, through perspective monitoring tube thrombosis place to the endovascular stent, this moment with the thrombus in stents remover by penetrating in conduit to the thrombosis place, defecator is positioned in the rack far end blood vessel, conduit is extracted out, driving device 3 drives wheel shaft 2 high-speed rotation, wheel shaft 2 driven vane cutting knifes 1 carry out high speed rotating, blade cutting knife 1 is attached on wheel shaft when static, the diameter that during rotation, blade cutting knife 1 opens can be consistent with the endovascular stent diameter, because blade cutting knife 1 is to rotate in endovascular stent, do not worry blood vessel wall is damaged, blade cutting knife 1 during high-speed rotation has enough strength with thrombosis and blood vessel endothelium hypertrophy complete resection, reach the effect of cleaning internal stent thrombosis, thrombosis after excision and blood vessel hyperplasia endothelium fragment are through front end elasticity drainage screen 4, elasticity drainage screen 4 is connected connection by wheel mandrel connector 5 with wheel shaft, elasticity drainage screen 4 transfixions, can effectively filter and collect the fragment of excision, do not affect simultaneously the circulation of blood.After elasticity drainage screen 4 is full of fragment of tissue, thrombosis remover integral body can be recalled, external with elasticity drainage screen 4 inner tissue's removal of cell debris after, can again repeat aforesaid operations, until thrombus in stents or hyperplastic tissue all remove.
Because artery blood flow flows to far-end and venous blood flow is back in pulmonary artery, must guarantee blood vessel and blood capillary thereof that thrombosis under interior excision and blood vessel endothelium hypertrophy fragment can not blocking remotes when rotary-cut thrombus in stents and hyperplastic tissue, by elasticity drainage screen 4 being set on wheel shaft 2 tops, can prevent the clogged with fragments distal vessels and the tissue ischemia of respective regions occur, thereby having guaranteed the safety of interventional therapy.
Claims (3)
1. thrombus in stents remover, it is characterized in that comprising blade cutting knife (1), wheel shaft (2), driving device (3) and elasticity drainage screen (4), blade cutting knife (1) is arranged on wheel shaft (2) front end, wheel shaft (2) end is arranged in driving device (3), elasticity drainage screen (4) device is on wheel shaft (2) top, blade cutting knife (1) is attached on wheel shaft (2) when static, automatically open during rotation and rotary-cut, during rotation, the diameter of blade cutting knife (1) is consistent with the diameter of endovascular stent.
2. a kind of thrombus in stents remover according to claim 1, is characterized in that, described elasticity drainage screen (4) is connected with wheel shaft (2) by wheel mandrel connector (5).
3. a kind of thrombus in stents remover according to claim 1, is characterized in that, the length of described wheel shaft (2) and the catheter length of its coupling adapt, and the diameter of wheel shaft (2) and the conduit diameter of its coupling adapt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110365475 CN102499734B (en) | 2011-11-17 | 2011-11-17 | Remover for thrombus in stents |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110365475 CN102499734B (en) | 2011-11-17 | 2011-11-17 | Remover for thrombus in stents |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102499734A CN102499734A (en) | 2012-06-20 |
| CN102499734B true CN102499734B (en) | 2013-06-19 |
Family
ID=46211914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110365475 Expired - Fee Related CN102499734B (en) | 2011-11-17 | 2011-11-17 | Remover for thrombus in stents |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102499734B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104586469B (en) * | 2013-11-01 | 2016-09-14 | 上海理工大学 | Local circulation formula thrombosis removes device |
| CN104758029B (en) * | 2015-04-16 | 2016-03-16 | 黄经春 | A kind of thrombus suction catheter and application thereof |
| CN105496507A (en) * | 2016-01-30 | 2016-04-20 | 李新民 | Device for dredging cardio-cerebral vessels and cleaning vascular thrombosis |
| CN106214217B (en) * | 2016-08-31 | 2018-11-06 | 北京爱康宜诚医疗器材有限公司 | Pulp cavity cleaning device and pulp cavity cleaning systems |
| CN106901799B (en) * | 2017-04-12 | 2019-04-09 | 山东大学 | A kind of thrombectomby system, preparation method and working method |
| WO2019176536A1 (en) * | 2018-03-13 | 2019-09-19 | テルモ株式会社 | Removal device and removal system |
| CN110226989B (en) * | 2019-06-24 | 2024-04-02 | 内蒙古工业大学 | Vortex type vena cava filter and filter system |
| CN111227908B (en) * | 2020-01-22 | 2022-03-22 | 北京立德微创科技有限公司 | Thrombus taking device |
| CN113633344A (en) * | 2020-05-11 | 2021-11-12 | 上海蓝脉医疗科技有限公司 | Thrombus removing device |
| CN112617963B (en) * | 2020-12-28 | 2023-09-29 | 吉林一方科技有限公司 | Thrombus clearing device |
| CN112971923B (en) * | 2021-02-25 | 2022-09-06 | 上海蕊源生物科技股份有限公司 | Interventional therapy catheter assembly for popliteal-iliofemoral deep vein thrombosis |
| CN113243971B (en) * | 2021-06-23 | 2021-11-12 | 中国医学科学院北京协和医院 | Novel thrombus suction composite balloon system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5795322A (en) * | 1995-04-10 | 1998-08-18 | Cordis Corporation | Catheter with filter and thrombus-discharge device |
| CA2396708A1 (en) * | 2000-01-26 | 2001-08-02 | Mark Wolfson | Device and method for selectively removing a thrombus filter |
| CN101795630A (en) * | 2007-06-29 | 2010-08-04 | 阿瑟罗迈德公司 | Atherectomy devices, systems, and methods |
| CN102186427A (en) * | 2008-09-22 | 2011-09-14 | 浩特斯博尔技术公司 | Flow restoration systems and methods for use |
| CN202397550U (en) * | 2011-11-17 | 2012-08-29 | 祖茂衡 | Clearer of thrombus in stent |
-
2011
- 2011-11-17 CN CN 201110365475 patent/CN102499734B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5795322A (en) * | 1995-04-10 | 1998-08-18 | Cordis Corporation | Catheter with filter and thrombus-discharge device |
| CA2396708A1 (en) * | 2000-01-26 | 2001-08-02 | Mark Wolfson | Device and method for selectively removing a thrombus filter |
| CN101795630A (en) * | 2007-06-29 | 2010-08-04 | 阿瑟罗迈德公司 | Atherectomy devices, systems, and methods |
| CN102186427A (en) * | 2008-09-22 | 2011-09-14 | 浩特斯博尔技术公司 | Flow restoration systems and methods for use |
| CN202397550U (en) * | 2011-11-17 | 2012-08-29 | 祖茂衡 | Clearer of thrombus in stent |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102499734A (en) | 2012-06-20 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20130619 Termination date: 20211117 |