CN104840235B - A kind of thrombectomby system and its controllable thrombectomy device - Google Patents
A kind of thrombectomby system and its controllable thrombectomy device Download PDFInfo
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- CN104840235B CN104840235B CN201510295965.2A CN201510295965A CN104840235B CN 104840235 B CN104840235 B CN 104840235B CN 201510295965 A CN201510295965 A CN 201510295965A CN 104840235 B CN104840235 B CN 104840235B
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- thrombectomy device
- tubular structure
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
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- 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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00743—Type of operation; Specification of treatment sites
- A61B2017/00778—Operations on blood vessels
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- Heart & Thoracic Surgery (AREA)
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Vascular Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a kind of thrombectomby system and its controllable thrombectomy device, the technical problem to be solved is to take pin device to take out embolus by machinery, and dredging vascellum realizes revascularization.The controllable thrombectomy device of the present invention is provided with excision spring, and excision spring release conditions are conical helical pattern, and excision spring distal end is connected with core filaments, and near-end is connected with tubular structure, and core filaments are slidably connected with tubular structure formation, realize excision spring controlled shape.The present invention is compared with prior art, cut off the controlled shape of spring, embolism position distal end is only needed to provide the space no more than 10mm length during release device, high degree extends the clinical scope of application, and device is very soft, minimum is that 0.014 " (0.36mm) can easily enter tiny tortuous blood vessel by size.
Description
Technical field
It is more particularly to a kind of for PCI cerebral arterial thrombosis the present invention relates to medical surgical instrument technical field
Apparatus.
Background technology
Ischemic Stroke accounts for the 60-80% of whole palsys, clinically mainly takes bolt to be controlled by medicine thrombolysis or machinery
Treat.Due to the strict time window limitation of medicine thrombolysis and more complication, most of patient finally can take machinery to take bolt
Therapeutic modality.
Carrying out embolectomy needs first by apparatus release in embolism position distal end, and existing takes pin device most of because carrying
For taking the position distance means tip of bolt function farther out, it may appear that situation in place can not be discharged, cause clinically the presence of limitation
Property, it is impossible to treat distal vascular disease.
The content of the invention
In view of this, the invention provides a kind of controllable thrombectomy device, that is, cut off the controllable machinery of part and take pin device,
During operation too big space is provided without blood vessel distal end releasably.
Present invention also offers a kind of thrombectomby system of the above-mentioned controllable thrombectomy device of application.
To achieve the above object, the present invention provides following technical scheme：
A kind of controllable thrombectomy device, including excision spring, core filaments and tubular structure；
The core filaments are arranged in the tubular structure, and both form and are slidably connected；
The excision spring and the core filaments are coaxial, and the distal end of the excision spring is fixedly linked with the core filaments, described
The near-end of excision spring is fixedly linked with the tubular structure.
It is preferred that, the hardness of the distal end of the tubular structure is less than the hardness of its near-end.
It is preferred that, the remote design of the tubular structure is spring-like structures or other engraved structures.
It is preferred that, the spring-like structures are to be processed metal tube using laser cutting parameter.
It is preferred that, the pitch of the spring-like structures is 0.051~0.1mm, and length is 50~500mm.
It is preferred that, in addition to handle, the handle includes inner core and overcoat；The near-end of the inner core and the tubular structure
It is fixedly connected, the overcoat is fixedly connected with the near-end of the core filaments, the inner core is slidably connected with overcoat formation,
It is preferred that, the handle also includes the handle screens dress for being used to prevent the inner core and the overcoat from rotating against
Put.
It is preferred that, the two ends of the excision spring are equipped with indicating.
A kind of thrombectomby system, including thrombectomy device, the thrombectomy device are above-mentioned controllable thrombectomy device.
It can be seen from above-mentioned technical scheme that, the controllable thrombectomy device that the present invention is provided, it cuts off spring distal end and connected
Core filaments are connected to, near-end is connected with tubular structure, and core filaments are slidably connected with tubular structure formation, realize excision spring controlled shape.
Compared with prior art, device only needs embolism position distal end to provide the space no more than 10mm length, pole to the present invention when discharging
Big degree extends the clinical scope of application.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of controllable thrombectomy device provided in an embodiment of the present invention；
Fig. 2 is the structural representation of tubular structure provided in an embodiment of the present invention；
Fig. 3 is the use process schematic of thrombectomby system provided in an embodiment of the present invention.
Wherein, 1 is indicating, and 2 be excision spring, and 3 be core filaments, and 4 be tubular structure, and 5 be handle inner core, and 6 be handle jacket,
7 be handle positioner, and 8 be spring-like structures, and 9 be to convey microtubular, 10 embolism positions, and 11 be controllable thrombectomy device, 12
For blood vessel.
Embodiment
The invention discloses a kind of controllable thrombectomy device, that is, cut off the controllable machinery of part and take pin device, during operation without
Blood vessel distal end is needed to provide too big space i.e. releasable.
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 carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 1-Fig. 2 is referred to, Fig. 1 is the structural representation of controllable thrombectomy device provided in an embodiment of the present invention；Fig. 2 is
The structural representation of tubular structure provided in an embodiment of the present invention；Fig. 3 is thrombectomby system provided in an embodiment of the present invention
Use process schematic.
Controllable thrombectomy device provided in an embodiment of the present invention, its core improvement is, including excision spring 2, core filaments 3
With tubular structure 4；
Wherein, thread core filaments 3 are arranged in hollow tubular structure 4, and both form and are slidably connected；
Cut off spring 2 and core filaments 3 are coaxial, the distal end and the distal end of core filaments 3 for cutting off spring 2 are fixedly linked, excision spring 2
The distal end of near-end and tubular structure 4 is fixedly linked, and its structure is referred to shown in Fig. 1.
It should be noted that above-mentioned distal end is the use state based on controllable thrombectomy device, i.e., the apparatus is remote makes
Left end in one end of user, i.e. accompanying drawing, is near-end close to one end of user accordingly
As shown in figure 3, when using controllable thrombectomy device provided in an embodiment of the present invention, conveying microtubular 9 is delivered
To the distal end of embolism position 10, controllable thrombectomy device 11 is delivered in blood vessel 12 through conveying microtubular 9, and spring 2 will be cut off
1~10mm is distally released in distal end from conveying microtubular 9, keeps core filaments 3 motionless, by pushing tubular structure 4, drives excision spring
2 near-ends are sent out from conduit, are now cut off spring 2 and are opened completely, using controllable thrombectomy device 11 with conveying microtubular 9 as whole
Body is withdrawn, and is accomplished the end in view.
It can be seen from above-mentioned technical scheme that, controllable thrombectomy device provided in an embodiment of the present invention, it cuts off spring
Distal end is connected with core filaments, and near-end is connected with tubular structure, and core filaments are slidably connected with tubular structure formation, so as to adjust excision spring
Shape and size.Compared with prior art, device only needs embolism position distal end to provide no more than 10mm to this programme when discharging
The space of length, high degree extends the clinical scope of application.
In order to further optimize above-mentioned technical scheme, the hardness of the distal end of tubular structure 4 is less than the hardness of its near-end.This
Sample one, controllable thrombectomy device can light intravasation, near-end has good push and twisting property, and distal end is softer, soft
Good toughness, can freely be conveyed, it is to avoid injured blood vessel in the intravascular of complexity.
In the specific embodiment that this programme is provided, the remote design of tubular structure 4 is spring-like structures 8, for realizing
The flexible structure of the distal end of tubular structure 4, its structure is referred to shown in Fig. 2.Certainly, the structure of tubular structure 4 not merely office
It is limited to this, other engraved structures can also be used in its distal end, be will not be repeated here.
Preferably, spring-like structures 8 are to be processed metal tube using laser cutting parameter.It can be led existing
Processing is obtained on tubular construction, and cutting is accurate, does not result in the deformation of other parts.
Specifically, the pitch of spring-like structures 8 is 0.051~0.1mm, length is 50~500mm, can use a kind of spiral shell
Away from or the mode that is combined of a variety of pitch, spring-like structures 8 are used to realize controllable thrombectomy device vertically proximally to distal end
Gradually soften.
The push of tubular structure 4 can be directly by operating its near-end to realize.Preferably, provided in an embodiment of the present invention
Controllable thrombectomy device also includes being arranged on the handle of its near-end, and the handle includes inner core 5 and overcoat 6 this two parts；Wherein, it is interior
Core 5 is fixedly connected with the near-end of tubular structure 4, and overcoat 6 is fixedly connected with the near-end of core filaments 3, both shape of inner core 5 and overcoat 6
Into being slidably connected.Tubular structure 4 and core filaments 3 can be driven by control handle, more facilitate accurate.
Further, handle also includes the handle positioner 7 for being used to prevent that inner core 5 and overcoat 6 from rotating against, that is, ensures
Handle jacket 6 and inner core 5 can only linear slide be without twisting back and forth, so as to improve whole controllable thrombectomy device operation
Accuracy.Specifically, handle positioner 7 can be to be arranged on the spacing preiection in both inner core 5 and overcoat 6 on one, and
Limited impression (or hole) on another relevant position is set, and these are all the conventional technical means of those skilled in the art,
It is not described in detail herein.
In the specific embodiment that this programme is provided, the two ends of excision spring 2 are equipped with indicating 1.Preferably, being penetrated in X
The position of excision spring 2 can be shown under line.The external diameter of indicating 1 for cutting off the two ends of spring 2 is 0.2~0.97mm, is closed using platinum, platinum
Gold, gold or stainless steel, are connected by welding technique with excision spring 2.
In this programme, excision spring 2 is one or more conical helical pattern structure compositions, and nature is cone-type spiral
Structure (miner diameter end is towards distally), is made, string diameter is 0.01~0.15mm, quantity of platinum core titanium-nickel wire or golden core titanium-nickel wire
For 1~16, pitch is 0.5~3mm, and spiral number of turns are 2~6 circles, and excision spring 2 maximum gauge is 2~10mm.Cut off spring
2 can also be made coil spring shape skeleton of common nitinol alloy wire, then coat one layer of platinum wire, platinum alloy silk, golden alloy wire
Or tungsten filament spring, design parameter ibid, the overall X-ray opaque of excision spring 2.Excision spring 2 can be placed in tubular structure 4 after shrinking
In (conveying microtubular 9).
Core filaments 3 are made of nitinol alloy wire or stainless steel wire, and string diameter is 0.025~0.15mm, and length is 700~
3000mm.Tubular structure 4 uses Nitinol or stainless steel for material, internal diameter be 0.1mm~0.91mm, external diameter be 0.25~
0.97mm, length is 500~2850mm.
The embodiment of the present invention additionally provides a kind of thrombectomby system, including thrombectomy device, and its core improvement is,
Thrombectomy device is above-mentioned controllable thrombectomy device.Wherein, thrombectomy device 11 is arranged on for delivering as primary clustering
Conveying microtubular 9 in.
As shown in figure 3, when using thrombectomby system provided in an embodiment of the present invention, conveying microtubular 9 is delivered to
Controllable thrombectomy device 11, is delivered in blood vessel 12 by the distal end of embolism position 10 through conveying microtubular 9, and it is remote to cut off spring 2
End indicating 1 distally releases 1~10mm from conveying microtubular 9, keeps core filaments 3 motionless, and tubular structure 4 is pushed by control handle,
Drive the excision near-end of spring 2 to be sent out from conduit, now cut off spring 2 and open completely, by controllable thrombectomy device 11 and conveying
Microtubular 9 is withdrawn as overall, is accomplished the end in view.
In summary, the embodiments of the invention provide a kind of thrombectomby system and its controllable thrombectomy device, to solve
Technical problem be to take pin device to take out embolus by machinery, dredging vascellum realizes revascularization.The controllable thrombus of the present invention is cut
Except device is provided with excision spring, excision spring release conditions are conical helical pattern, and excision spring distal end is connected with core filaments, near-end connection
There is tubular structure, core filaments are slidably connected with tubular structure formation, realize excision spring controlled shape.The present invention and prior art phase
Than cutting off the controlled shape of spring, only needing embolism position distal end to provide the space no more than 10mm length during release device, greatly
Degree extends the clinical scope of application, and device is very soft, and minimum is that 0.014 " (0.36mm) can easily enter by size
Enter tiny tortuous blood vessel.
The embodiment of each in this specification is described by the way of progressive, and what each embodiment was stressed is and other
Between the difference of embodiment, each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (9)
1. a kind of controllable thrombectomy device, it is characterised in that including excision spring (2), core filaments (3) and tubular structure (4)；
The core filaments (3) are arranged in the tubular structure (4), and both form and are slidably connected；
It is described to cut off spring (2) and the core filaments (3) coaxially, the distal end of the excision spring (2) and the core filaments (3) stationary phase
Even, the near-end of the excision spring (2) is directly fixedly linked with the tubular structure (4)；
The tubular structure (4) is used for through embolism position (10).
2. controllable thrombectomy device according to claim 1, it is characterised in that the distal end of the tubular structure (4) it is hard
Hardness of the degree less than its near-end.
3. controllable thrombectomy device according to claim 2, it is characterised in that the remote design of the tubular structure (4)
For spring-like structures (8) or other engraved structures.
4. controllable thrombectomy device according to claim 3, it is characterised in that the spring-like structures (8) are using sharp
Light cutting technique processes metal tube.
5. controllable thrombectomy device according to claim 4, it is characterised in that the pitch of the spring-like structures (8) is
0.051~0.1mm, length is 50~500mm.
6. the controllable thrombectomy device according to claim 1-5 any one, it is characterised in that described also including handle
Handle includes inner core (5) and overcoat (6)；The inner core (5) is fixedly connected with the near-end of the tubular structure (4), the overcoat
(6) near-end with the core filaments (3) is fixedly connected, and the inner core (5) is slidably connected with the overcoat (6) formation.
7. controllable thrombectomy device according to claim 6, it is characterised in that the handle also includes being used to prevent described
The handle positioner (7) that inner core (5) and the overcoat (6) are rotated against.
8. controllable thrombectomy device according to claim 1, it is characterised in that the two ends of the excision spring (2) are all provided with
There is indicating (1).
9. a kind of thrombectomby system, including thrombectomy device, it is characterised in that the thrombectomy device is such as claim 1-
Controllable thrombectomy device described in 8 any one.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510295965.2A CN104840235B (en) | 2015-06-02 | 2015-06-02 | A kind of thrombectomby system and its controllable thrombectomy device |
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| CN201510295965.2A CN104840235B (en) | 2015-06-02 | 2015-06-02 | A kind of thrombectomby system and its controllable thrombectomy device |
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| CN104840235B true CN104840235B (en) | 2017-09-19 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10478322B2 (en) * | 2017-06-19 | 2019-11-19 | Covidien Lp | Retractor device for transforming a retrieval device from a deployed position to a delivery position |
| CN107951539A (en) * | 2018-01-16 | 2018-04-24 | 陈世辉 | A kind of embolism embolus extractor |
| CN111820990B (en) * | 2020-07-23 | 2021-12-17 | 上海心玮医疗科技股份有限公司 | Three-dimensional spiral intracranial thrombus removal support |
| CN113331919B (en) * | 2021-07-13 | 2022-09-06 | 迈得诺医疗科技集团有限公司 | Device and system for removing blood vessel caking |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5972019A (en) * | 1996-07-25 | 1999-10-26 | Target Therapeutics, Inc. | Mechanical clot treatment device |
| JP4510125B1 (en) * | 2009-02-20 | 2010-07-21 | 株式会社ウィルファイン | Intravascular thrombus trap |
| CN202821511U (en) * | 2012-05-07 | 2013-03-27 | 王涛 | Thrombus breaking and taking device |
| CN102670282A (en) * | 2012-05-14 | 2012-09-19 | 湖南依微迪医疗器械有限公司 | Cerebral thrombosis exsector |
| CN104434263A (en) * | 2014-12-01 | 2015-03-25 | 中国人民解放军第二军医大学 | Regulating intracranial intravascular thrombus extraction device |
| CN104622538A (en) * | 2015-03-12 | 2015-05-20 | 湖南瑞康通科技发展有限公司 | Thrombus excision system |
| CN204734516U (en) * | 2015-06-02 | 2015-11-04 | 湖南瑞康通科技发展有限公司 | Thrombus excision system and controllable thrombus resectoscope thereof |
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