CN105726088A - Thrombus removing device - Google Patents
Thrombus removing device Download PDFInfo
- Publication number
- CN105726088A CN105726088A CN201610270870.XA CN201610270870A CN105726088A CN 105726088 A CN105726088 A CN 105726088A CN 201610270870 A CN201610270870 A CN 201610270870A CN 105726088 A CN105726088 A CN 105726088A
- Authority
- CN
- China
- Prior art keywords
- stent
- thrombosis
- pipe
- thrombus
- takes out
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22038—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with a guide wire
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22038—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with a guide wire
- A61B2017/22042—Details of the tip of the guide wire
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The invention discloses a thrombus removing device. The thrombus removing device comprises a meshed self-expanded stent and core threads, and the stent with an open near end and a closed far end is cylindrical in an expanded state. When the thrombus removing device is in operation, the stent penetrates the interior of a thrombus to deliver the thrombus to the far end, after an initial blood circulation passage is established, the stent is released to the inner wall of a thrombus region, and radial supporting of the stent forms radial extruding and cutting of a thrombus layer to realize thrombolysis of a soft thrombus layer to expand the passage in a short period by the aid of blood, and rectangular mesh structures similar to large thrombi in size can realize effective insertion and nesting of the large thrombi. Due to spiral distribution of the mesh structures around the stent, exhaustive capture of the large thrombi in random distribution is guaranteed, and the thrombi are caught by the meshes of the stent and brought outside. Since the thrombi are uniformly distributed on axial meshes of the stent by inserting and hanging instead of being accumulated at the far end of the stent, injuries of vessel walls in recovery are reduced. Generated thrombus fragments enter the stent through an opening of the near end and collected by the closed far end.
Description
Technical field
The present invention relates to technical field of medical instruments, in particular, relate to a kind of thrombosis and take out device.
Background technology
Thrombosis is the fritter that blood flow is formed on the surface of cardiovascular system blood vessel inner face exfoliation or mend.In variable fluid dependent form (variableflowdependentpatterns), thrombosis is made up of fibrin, the platelet of deposition, the leukocyte gathered and the erythrocyte being absorbed in.
The fearful part of thrombosis can cause local stoppages exactly, thus causing ischemia, anoxia and tissue necrosis.Thrombosis can occur in the tremulous pulse at any position of human body.Will result in cerebral infarction or cerebral embolism as occurred in cerebrovascular crotch, and occur in coronary artery place it is possible to coronary heart disease can be caused.These diseases all likely cause sudden death and handicap.
Therefore, how to provide a kind of thrombosis to take out device, be that those skilled in the art are presently required and solve the technical problem that.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of thrombosis and take out device, to realize the treatment to thrombosis.
For achieving the above object, the present invention provides following technical scheme:
A kind of thrombosis takes out device, it support including netted self-expansion type and the core filaments being connected with described support, and described stent expansion state is cylindrical shape, and has opening at the near-end near described core filaments, closes at the far-end away from described core filaments.
Preferably, above-mentioned thrombosis takes out in device, and the density of the mesh of described support is become larger by proximate.
Preferably, above-mentioned thrombosis takes out in device, forms the netting twine circumferentially screw arrangement of described mesh.
Preferably, above-mentioned thrombosis takes out in device, and the netting twine of described mesh is NiTi superelastic alloy light-wall pipe, and the wall thickness of described NiTi superelastic alloy light-wall pipe is 0.1～0.4mm.
Preferably, above-mentioned thrombosis takes out in device, and the diameter of described stent expansion state is 2～6mm, and length is 10～60mm.
Preferably, above-mentioned thrombosis takes out in device, also includes being arranged on described rack far end and the first marker can being irradiated to by X-ray.
Preferably, above-mentioned thrombosis takes out in device, also includes being arranged on described mount proximal end and the second marker can being irradiated to by X-ray.
Preferably, above-mentioned thrombosis takes out in device, and described first marker is platinum pipe, platinum alloy pipe, billon pipe or tungsten pipe, and described second marker is platinum pipe, platinum alloy pipe, billon pipe or tungsten pipe.
Preferably, above-mentioned thrombosis takes out in device, and the internal diameter of described first marker and described second marker is 0.45～0.63mm, and external diameter is 0.51～0.69mm.
Preferably, above-mentioned thrombosis takes out in device, and described core filaments is diameter be 0.34～0.44mm length is the pipe of 1800～3000mm.
Via above-mentioned technical scheme it can be seen that the invention discloses a kind of thrombosis to take out device, including the support of netted self-expansion type and the core filaments that is connected with support, wherein, this stent expansion state is cylindrical shape, and has opening at the near-end near core filaments, and the far-end away from core filaments is closed.By the support of self-expansion type is set to network structure in the application, and opening is set at near-end, far-end is closed, during work, thrombosis is taken out device and stretches into internal blood vessel, and ensure that thrombosis is positioned at mount proximal end side, and to regain in stent procedures by core filaments, thrombosis can pass through opening and enter the inside of grid, by the collection of support by internal for thrombosis income, again support being taken out, thus realizing the taking-up to thrombosis, reaching the purpose for the treatment of thrombosis.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to the accompanying drawing provided.
Fig. 1 takes out the structural representation of device for the thrombosis that the embodiment of the present invention provides；
Fig. 2 takes out schematic diagram during device duty for the thrombosis that the embodiment of the present invention provides.
Detailed description of the invention
The core of the present invention there is provided a kind of thrombosis and takes out device, to realize the treatment to thrombosis.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
As depicted in figs. 1 and 2, the invention discloses a kind of thrombosis and take out device, including the support 2 of netted self-expansion type and the core filaments 4 that is connected with support 2, wherein, this support 2 is cylindrical shape at swelling state, and has opening at the near-end near core filaments 4, and the far-end away from core filaments 4 is closed.By the support 2 of self-expansion type is set to network structure in the application, and opening is set at near-end, far-end is closed, during work, thrombosis is taken out device and stretches into blood vessel 5 inside, and ensure that thrombosis 6 is positioned at mount proximal end side, and to be regained in support 2 process by core filaments 4, thrombosis 6 can pass through opening and enter the inside of support 2, by the collection of support 2, thrombosis 6 is taken in inside, again support 2 being taken out, thus realizing the taking-up to thrombosis 6, reaching the purpose for the treatment of thrombosis 6.
In further embodiment, the density of the mesh of support 2 is become larger by proximate, the density of the mesh namely with opening side is less, mesh ratio is sparse, and the density of the mesh of closed side is bigger, mesh compares comparatively dense, so arrange and can ensure that thrombosis can facilitate access for inside mesh, and thrombosis 6 enters blind end in the process regaining support 2, and now mesh density compares sealing, when the area of support 2 circumference is constant, the size of mesh is smaller, and thrombosis 6 is not easy to come off in support 2.Size for mesh can be set according to different needs and all in protection domain.Mesh also can be sized to identical structure in practice; and thrombosis 6 is entered support 2 by import; support 2 is departed from by the spacing obstruction thrombosis 6 of the netting twine of mesh; it is 3～6mm that the application also provides the concrete size range hole length of a kind of mesh; wide is 2～4mm, but, the application is not limited in above-mentioned size; operator can need to carry out the adjustment of size according to different, and all in protection domain.
In specific embodiment, the netting twine forming mesh in the application is circumferentially arranged in the shape of a spiral, and mesh is crossed to form by different netting twine spiral course.The direction that can constantly change grid arranged in the shape of a spiral by netting twine, and further anti-tampon 6 departs from support 2.Mesh is assumed diamond in shape or the arrangement of netting twine of square or rectangle etc. shape is all in protection domain.The mesh being distributed in the shape of a spiral on support 2 improves the ability that thrombosis 6 takes out, and meanwhile, support 2 also can obtain good bendability and pliability, is beneficial to and works in tortuous blood vessel 5；The far-end that support 2 is closed may filter that blood, collects thrombosis 6 fragment, it is to avoid far-end branch blood vessel blocks.
Owing to the support of self-expansion type is carved, by NiTi superelastic alloy light-wall pipe, the superelastic stents made through laser accurate, therefore, the netting twine that can say mesh is NiTi superelastic alloy light-wall pipe, in the application, the wall thickness of NiTi superelastic alloy thin-walled is set to 0.1～0.4mm.The application merely provides the concrete size of a kind of NiTi superelastic alloy thin-walled, and diameter and thrombosis 6 size of the blood vessel 5 that can exist according to thrombosis 6 as required in practice are set, and all in protection domain.
In preferred embodiment, the diameter of support 2 swelling state being set to 2～6mm, length is 10～60mm.Owing to this support 2 is self-expansion type support, in use, this support 2 can stretch into line style vertically, to facilitate in support 2 intravasation 5, and enter thrombosis 6 far-end, then open support 2, and in the process regaining support 2, make thrombosis 6 enter support 2, it is achieved the taking-up of thrombosis 6.Thrombosis takes out device and is delivered to thrombosis 6 far-end, withdraws core filaments 4, drives support 2 to move, and the mesh cutting thrombosis 6 on support 2, thrombosis 6 will be attached to be drawn into conduit on mesh and withdraw from external.
In further embodiment, determining the position of support 2 in operation process for the ease of user, thrombosis disclosed in the present application takes out device and also includes being arranged on support 2 far-end and the first marker 1 can being irradiated to by X-ray.Concrete, this first marker 1 is fixed on support 2 end by Laser Welding.
In further embodiment, this thrombosis takes out device and also includes being arranged on support 2 near-end and the second marker 3 can being irradiated to by X-ray.In operation, thrombosis is taken out after device stretches into blood vessel 5 inside, irradiated the position that can show the first marker 1 and the second marker 3 by X-ray, thus convenient, support 2 is determined position, improve the accuracy of operation and operating time can be shortened.
First marker 1 disclosed herein is platinum pipe, platinum alloy pipe, billon pipe or tungsten pipe, and the second marker 3 is set to platinum pipe, platinum alloy pipe, billon pipe or tungsten pipe simultaneously.Producer can need to select the marker of unlike material according to different, as long as ensure that and can being irradiated to support 2 is positioned by X-ray.
In order to optimize technique scheme further; in the application, the first marker 1 and the second marker 3 being disposed as internal diameter is 0.45～0.63mm; external diameter is the pipe of 0.51～0.69mm; but the application is not limited in above-mentioned scope, as long as any deformation under the core that can be arrived by X-ray irradiating and detecting is all in protection domain.
Core filaments disclosed herein is diameter be 0.34～0.44mm length is the pipe of 1800～3000mm, and in like manner the application does not only protect above-mentioned scope.
In this specification, each embodiment adopts the mode gone forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually referring to.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.The multiple amendment of these embodiments be will be apparent from for those skilled in the art, and generic principles defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention is not intended to be limited to the embodiments shown herein, and is to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (10)
1. a thrombosis takes out device, it is characterized in that, including the support (2) of netted self-expansion type and the core filaments (4) that is connected with described support (2), described support (2) swelling state is cylindrical shape, and at the near-end near described core filaments (4), there is opening, close at the far-end away from described core filaments (4).
2. thrombosis according to claim 1 takes out device, it is characterised in that the density of the mesh of described support (2) is become larger by proximate.
3. thrombosis according to claim 1 takes out device, it is characterised in that form the netting twine circumferentially screw arrangement of described mesh.
4. the thrombosis according to any one of claim 1-3 takes out device, it is characterised in that the netting twine of described mesh is NiTi superelastic alloy light-wall pipe, and the wall thickness of described NiTi superelastic alloy light-wall pipe is 0.1～0.4mm.
5. thrombosis according to claim 4 takes out device, it is characterised in that the diameter of described support (2) swelling state is 2～6mm, and length is 10～60mm.
6. the thrombosis according to any one of claim 1-3 takes out device, it is characterised in that also include being arranged on described support (2) far-end and the first marker (1) can being irradiated to by X-ray.
7. thrombosis according to claim 6 takes out device, it is characterised in that also include being arranged on described support (2) near-end and the second marker (3) can being irradiated to by X-ray.
8. thrombosis according to claim 7 takes out device, it is characterized in that, described first marker (1) is platinum pipe, platinum alloy pipe, billon pipe or tungsten pipe, and described second marker (3) is platinum pipe, platinum alloy pipe, billon pipe or tungsten pipe.
9. thrombosis according to claim 7 takes out device, it is characterised in that the internal diameter of described first marker (1) and described second marker (3) is 0.45～0.63mm, and external diameter is 0.51～0.69mm.
10. thrombosis according to claim 6 takes out device, it is characterised in that described core filaments (4) is 0.34～0.44mm length for diameter is the pipe of 1800～3000mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610270870.XA CN105726088A (en) | 2016-04-27 | 2016-04-27 | Thrombus removing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610270870.XA CN105726088A (en) | 2016-04-27 | 2016-04-27 | Thrombus removing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105726088A true CN105726088A (en) | 2016-07-06 |
Family
ID=56287346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610270870.XA Pending CN105726088A (en) | 2016-04-27 | 2016-04-27 | Thrombus removing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105726088A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018161959A1 (en) * | 2017-03-10 | 2018-09-13 | 上海心玮医疗科技有限公司 | Thrombectomy device system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0914807A2 (en) * | 1996-07-25 | 1999-05-12 | Target Therapeutics, Inc. | Intravascular occlusion removal device |
| EP1430839A1 (en) * | 2001-09-28 | 2004-06-23 | Kanji Inoue | Free thrombus capturing tool |
| CN101027004A (en) * | 2004-09-10 | 2007-08-29 | 半影公司 | System and method for treating ischemic stroke |
| CN101172051A (en) * | 2006-10-31 | 2008-05-07 | 朱正兵 | Device for crushing and taking out thrombus |
| CN101400309A (en) * | 2006-02-01 | 2009-04-01 | 克利夫兰临床医学基金会 | Inflatable-deflatable passive exercise unit |
| CN103284775A (en) * | 2013-06-04 | 2013-09-11 | 加奇生物科技(上海)有限公司 | Encephalic thrombosis removing device |
| CN104068909A (en) * | 2013-03-26 | 2014-10-01 | 上海微创医疗器械（集团）有限公司 | Intracranial vascular thrombus retrieval machine and thrombus retrieval device |
-
2016
- 2016-04-27 CN CN201610270870.XA patent/CN105726088A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0914807A2 (en) * | 1996-07-25 | 1999-05-12 | Target Therapeutics, Inc. | Intravascular occlusion removal device |
| EP1430839A1 (en) * | 2001-09-28 | 2004-06-23 | Kanji Inoue | Free thrombus capturing tool |
| CN101027004A (en) * | 2004-09-10 | 2007-08-29 | 半影公司 | System and method for treating ischemic stroke |
| CN101400309A (en) * | 2006-02-01 | 2009-04-01 | 克利夫兰临床医学基金会 | Inflatable-deflatable passive exercise unit |
| CN101172051A (en) * | 2006-10-31 | 2008-05-07 | 朱正兵 | Device for crushing and taking out thrombus |
| CN104068909A (en) * | 2013-03-26 | 2014-10-01 | 上海微创医疗器械（集团）有限公司 | Intracranial vascular thrombus retrieval machine and thrombus retrieval device |
| CN103284775A (en) * | 2013-06-04 | 2013-09-11 | 加奇生物科技(上海)有限公司 | Encephalic thrombosis removing device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018161959A1 (en) * | 2017-03-10 | 2018-09-13 | 上海心玮医疗科技有限公司 | Thrombectomy device system |
| US11583302B2 (en) | 2017-03-10 | 2023-02-21 | Shanghai Heartcare Medical Technology Co., Ltd. | Thrombectomy device system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11751987B2 (en) | Embolic protection device | |
| JP6873233B2 (en) | Blood clot collection device for the treatment of ischemic stroke | |
| EP3827763B1 (en) | Clot retrieval device with outer sheath and inner catheter | |
| KR102571962B1 (en) | Embolization device with blood flow restriction and related method | |
| DE60126585T2 (en) | Device for the prevention of vascular embolism | |
| WO2018120254A1 (en) | Retrieval device for thrombus in blood vessel | |
| US20160296245A1 (en) | Systems and Methods for Restoring Blood Flow to a Vessel | |
| US20140364896A1 (en) | Device, system, and method for thrombus retrieval | |
| KR20200130692A (en) | Flow protection device for ischemic stroke treatment | |
| CN105662534B (en) | Blood vessel thrombus taking device with thorn-shaped structure and thrombus therapeutic instrument thereof | |
| CN104068909A (en) | Intracranial vascular thrombus retrieval machine and thrombus retrieval device | |
| US20210393280A1 (en) | A device and a thrombectomy apparatus for extraction of thrombus from a blood vessel | |
| CN113143405A (en) | Intravascular thrombus taking net disk support and conveying device thereof | |
| CN105662647A (en) | Thrombus filter | |
| US20210298773A1 (en) | Catheter funnel extension | |
| CN104068912A (en) | Intracranial vascular thrombus retrieval machine and thrombus retrieval device | |
| CN209629756U (en) | One kind taking pin device | |
| US20220287729A1 (en) | Thrombus removal device | |
| BR112015020071B1 (en) | THROMBECTOMY DEVICE | |
| CN205697926U (en) | One takes bolt device | |
| CN113993464A (en) | Thrombus removal device | |
| CN105726088A (en) | Thrombus removing device | |
| CN113491595A (en) | Blood vessel far-end protection device for filtering thrombus | |
| CN108852466B (en) | Thrombus taking device | |
| CN116509506A (en) | Thrombolysis device and thrombolysis device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160706 |