CN105852932B - A kind of fluid-operated plaque within blood vessels remove device - Google Patents
A kind of fluid-operated plaque within blood vessels remove device Download PDFInfo
- Publication number
- CN105852932B CN105852932B CN201610482786.4A CN201610482786A CN105852932B CN 105852932 B CN105852932 B CN 105852932B CN 201610482786 A CN201610482786 A CN 201610482786A CN 105852932 B CN105852932 B CN 105852932B
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- China
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- impeller
- main shaft
- separate cavities
- grinding element
- inflatable auxiliary
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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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00535—Surgical instruments, devices or methods, e.g. tourniquets pneumatically or hydraulically operated
- A61B2017/00539—Surgical instruments, devices or methods, e.g. tourniquets pneumatically or hydraulically operated hydraulically
-
- 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
-
- 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
- A61B2017/22051—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 an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation
- A61B2017/22054—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 an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation with two balloons
-
- 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
- A61B2017/22051—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 an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation
- A61B2017/22065—Functions of balloons
- A61B2017/22067—Blocking; Occlusion
-
- 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
- A61B2017/22072—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 an instrument channel, e.g. for replacing one instrument by the other
- A61B2017/22078—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 an instrument channel, e.g. for replacing one instrument by the other for rotating the instrument within a channel, e.g. an optical fibre
-
- 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
- A61B2017/22079—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 suction of debris
Abstract
The invention discloses a kind of fluid-operated plaque within blood vessels remove device, including being provided with suction channel, the main shaft of conveyance conduit and fill pipe, main shaft sets the inflatable auxiliary separate cavities of near-end from left to right, the inflatable auxiliary separate cavities of suction hole and distal end, suction hole is connected with suction channel, the inflatable auxiliary separate cavities of the inflatable auxiliary separate cavities of near-end and distal end are connected by respective filling hole with fill pipe, grinding element is provided between the inflatable auxiliary separate cavities of near-end and suction hole, grinding element left surface sets impeller, grinding element and the major axis diameter of impeller position are less than the major axis diameter at left and right sides of it, transfer passage is arranged at the main shaft portion on the left of impeller, the right output port of transfer passage is located at the right flank of main shaft portion on the left of the impeller, and it is connected with blood vessel.Present invention, avoiding motor driver in the operating condition because the excessively high characteristic of temperature is to the potential hazard of human body, ensure operation safety and success rate.
Description
Technical field
The present invention relates to a kind of medical treatment device, is to be related to a kind of fluid-operated plaque within blood vessels to remove in particular
Device.
Background technology
The diseases such as arterial embolism, phlebothrombosis and atherosclerotic occlusive disease are directed to, with development scientific and technological in recent years, warp
The treatment method of patch resection has obtained significant progress in bellows.More ripe system includes the U.S. at present
Covidien SilverHawkTMPeriphery patch excision system, U.S. Boston Scientific Peripheral
RotablatorTMRotational Atherectomy System and JetstreamTMAtherectomy System, it is auspicious
Scholar Straub Medical'sU.S. Volcano'sAtherectomy System's and U.S. CSI
DiamondbackPeripheral Orbital Atherectomy System etc..SilverHawkTMCut Deng for orientation
Except system, it is made up of topping machanism and the tubular shell (nasal cavity) for collecting cutting chip.The system is more easy to eliminate eccentricity lesion,
But the treatment to distal embolization, which exists, is applicable sex chromosome mosaicism, need to be used cooperatively with other treatment means or protection device.
RotablatorTMSystem is removed for rotary patch, it has the characteristic that can distinguish cutting, and the applicable scope of organization is wider, but is
Ensure removal effect and avoid larger volume chip in the blood vessel dissociate while, need to strictly control the high-revolving duration with
Situations such as equipment heating.JetstreamTMOutstanding feature for can provide continuation suction, effectively eliminate atherosclerosis and
Thrombus fragment is simultaneously collected and discharges to cutting fragment, but its continuation swabbing pressure and chip recycling actual effect contact
Need to be investigated.It is simple to operate, negative-pressure ward effect is produced simultaneously in rotary-cut, and is had to a certain extent to blood vessel
Protective effect, but there is also the free potential risk with excessive blood loss of remaining chip simultaneously.DiamondbackThe characteristics of be
Controlled to realize different rotary-cut radiuses by rotating speed in same root conduit, and only contacted within the same time with section tubular wall,
The generation of heat is effectively reduced, but there is potential destructiveness while rotary-cut radius is controlled to lesion vesselses inwall.
However, in actual therapeutic, medicinal treatment still occupies main flow.On the one hand because whole system carries to medical personnel
Higher requirement is gone out, on the other hand due to receiving some complication for being likely to occur of excision systematic treating and its to patients ' psychological
Influence.Distal embolization is a kind of relatively conventional complication, while is likely to result in other complication even life danger.
The content of the invention
The invention aims to overcome deficiency of the prior art, there is provided a kind of fluid-operated plaque within blood vessels are clear
Except device, part can will be removed while effective work and excreted, prevent potential small patch chip flow to distal end,
And the part such as drive shaft and sheath is avoided in general motor driving patch removing system in the operating condition because temperature is too high, high
The characteristics such as rotating speed at utmost ensure operation safety and success rate, reduce the production of complication to the potential hazard of body system
It is raw.
The purpose of the present invention is achieved through the following technical solutions.
A kind of fluid-operated plaque within blood vessels remove device of the present invention, including it is provided with suction channel, conveyance conduit
With the main shaft of fill pipe, the main shaft is provided with the inflatable auxiliary separate cavities of near-end, suction hole and distal end from left to right can be swollen
Swollen auxiliary separate cavities, the suction hole are connected with suction channel, and the inflatable auxiliary separate cavities of the near-end and distal end are inflatable
Auxiliary separate cavities are connected by respective filling hole with the fill pipe, and the near-end is inflatable to be aided in separate cavities and take out
Grinding element is provided between sucker, the grinding element left surface is provided with impeller, and grinding element and the impeller institute is in place
The major axis diameter put is less than the major axis diameter at left and right sides of it, and the transfer passage is arranged at the main shaft portion on the left of impeller, institute
The right output port for stating transfer passage is located at the right flank of main shaft portion on the left of the impeller, and is connected with blood vessel.
Main shaft portion on the left of the impeller is provided with subsidiary conduit, and the right output port of the accessory channel is located at the impeller
The right flank of left side main shaft portion, and be connected with blood vessel.
The conveyance conduit and suction channel at least respectively set one.
Compared with prior art, beneficial effect caused by technical scheme is：
(1) in the present invention, near-end is inflatable to be aided in separate cavities and grinding element, grinding element is provided between suction hole
Left surface is provided with impeller, drive device of the impeller after liquid driven as grinding element, than being tied containing drive shaft, sheath etc.
The long range motor drive mode of structure is safe, is not easy to produce heat because temperature is too high or the factor such as rotation is made to blood vessel at a high speed
Into damage, other uncertain influences are avoided, at utmost ensures operation safety and success rate, reduces the production of complication
It is raw；
(2) in the present invention, the major axis diameter of grinding element and impeller position is less than the major axis diameter at left and right sides of it,
Main shaft portion on the left of impeller is provided with transfer passage and subsidiary conduit, and the right output port of transfer passage and subsidiary conduit is located at impeller
The right flank of left side main shaft portion, and be connected with blood vessel, subsidiary conduit can play a part of conveyance conduit and suction channel,
During by conveyance conduit or subsidiary conduit to intravascular conveying material, wheel rotation can be driven, and then drives grinding element to rotate,
Carry out excision operation；At the same time, conveying material can promote suction channel or subsidiary conduit that chip discharge is external, quick to establish
The circulatory system, ensure the stability of blood vessel internal circulation system well；
(3) in the present invention, grinding element and main shaft can be selected according to the actual conditions such as length are removed, external to change,
More flexibly and with the potential advantages for reducing use cost.There is provided for its further optimization design and application popularization more reliable
Ensure, there is important Practical significance.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of main shaft in Fig. 1；
Fig. 3 is A-A sectional views in Fig. 1；
Fig. 4 is B-B sectional views in Fig. 1；
Fig. 5 is that the present invention builds local circulation chamber schematic diagram in the blood vessels；
Fig. 6 is that the present invention carries out excision operating diagram；
Fig. 7 is that the present invention carries out another pattern excision operating diagram.
Reference:1 main shaft；The inflatable auxiliary separate cavities of 2 near-ends；The inflatable auxiliary separate cavities in 3 distal ends；4 filling holes；5
Impeller；6 grinding elements；7 suction holes；8 suction channels；9 fill pipes；10 conveyance conduits；11 subsidiary conduits；12 patches；13 cut
Bits；14 blood vessels.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
As shown in Figures 1 to 7, a kind of fluid-operated plaque within blood vessels remove device of the invention, including main shaft 1, institute
State suction channel 8, conveyance conduit 10 and the fill pipe 9 being provided with main shaft 1 with the integrative-structure of main shaft 1, the main shaft 1
The inflatable auxiliary separate cavities 2 of near-end, the inflatable auxiliary separate cavities 3 of suction hole 7 and distal end are provided with from left to right.The suction hole
7 are connected with suction channel 8, and the inflatable auxiliary separate cavities 3 of the inflatable auxiliary separate cavities 2 of the near-end and distal end are by respective
Filling hole 4 be connected with the fill pipe 9, the inflatable auxiliary isolation of the inflatable auxiliary separate cavities 2 of the near-end and distal end
Chamber 3 can be made up of air bag etc..The suction channel 8 is set to suction hole 7, the edge of fill pipe 9 by left vertically
Axially set by left to the filling hole 4 of the inflatable auxiliary separate cavities 3 in distal end.
Grinding element 6 is provided between the inflatable auxiliary separate cavities 2 of the near-end and suction hole 7, the grinding element 6 is left
Side is provided with impeller 5, the drive device as grinding element 6.The main shaft of grinding element 6 and impeller 5 position is straight
Footpath is less than the major axis diameter at left and right sides of it, that is to say, that the inflatable auxiliary separate cavities 2 of the near-end are sheathed on the left end of main shaft 1
Diameter portion, the grinding element 6 and impeller 5 be sheathed on the small diameter portion of main shaft 1, the inflatable auxiliary in the distal end every
From the diameter portion that chamber 3 is arranged at the right-hand member of main shaft 1.The both ends of the surface of the impeller 5 and grinding element 6 and the major diameter master of both sides
Axle 1 leaves certain interval between part.The part of major diameter main shaft 1 in the left side of impeller 5 is provided with subsidiary conduit from left to right
11, subsidiary conduit 11 sets with the main shaft and is structure as a whole, and subsidiary conduit 11 can play to blood vessel 14 and convey material or past blood
Extract the effect of material outside pipe 14 out, the right output port of the subsidiary conduit 11 is located at the left side major diameter main shaft portion of impeller 5
Right flank, and be connected with blood vessel 14.The conveyance conduit 10 is arranged at the major diameter main shaft portion in the left side of impeller 5, described defeated
Send the right output port of passage 10 to be located at the right flank of the left side major diameter main shaft portion of impeller 5, and be connected with blood vessel 14.It is described
The right output port of conveyance conduit 10 and subsidiary conduit 11 is respectively positioned on the left surface of impeller, is so passing through subsidiary conduit 11 or delivery pipe
When road 10 conveys material into blood vessel 14, impeller 5 can be directly driven and rotated.
The conveyance conduit 10 and suction channel 8 are at least each to set one.The conveyance conduit 10, suction channel 8, filling
The position relationship of pipeline 9 and subsidiary conduit 11 can be also designed as needed, be not limited to shown in accompanying drawing.
The present invention can select suitable grinding element 6 and related cooperation annex in body according to length, cleaning module etc. is removed
It is outer to be changed, to meet the removing demand of different patch 12, there is certain flexibility and economy.
Based on the sweep-out method of above-mentioned fluid-operated plaque within blood vessels remove device, comprise the following steps：
Step 1, the fluid-operated plaque within blood vessels remove device of assembled in vitro.According to the reality of patch 12 in blood vessel 14
Situation, select corresponding size, the main shaft 1 and grinding element 6 of pattern；
Step 2, the fluid-operated plaque within blood vessels remove device assembled is lowered into specified location in blood vessel 14,
So that grinding element 6 is located at patch 12, the inflatable auxiliary separate cavities 3 of the inflatable auxiliary separate cavities 2 of near-end and distal end distinguish position
In the both sides of patch 12, auxiliary separate cavities 2 and distal end are proximally may expand respectively from hole 4 is filled through by fill pipe 9 in vitro
It is inflatable to aid in the filled media of separate cavities 3, can be the materials such as gas, liquid, up to the inflatable auxiliary separate cavities 2 of near-end and far
The inflatable auxiliary separate cavities 3 in end expand, and surrounding contacts with the inwall of blood vessel 14 respectively, coordinate blood vessel 14, main shaft 1, conveyance conduit 10,
Suction channel 8 and subsidiary conduit 11, local circulation chamber is formed in a short time, ponding, closure are formed to blood vessel 14
Well, basis is provided for excision work；
Step 3, the local circulation chamber established by conveyance conduit 10 or subsidiary conduit 11 to above-mentioned step 2 is with safety
State convey material, driving impeller 5 rotate, and then drive grinding element 6 rotate, grinding element 6 patch 12 is carried out safely, have
The excision work of effect；At the same time, conveying material can promote suction channel 8 or subsidiary conduit 11 to excrete chip 13.System
In the operating condition, the medium of conveying and suction can not only drive the rotation of grinding element 6 to be purged work to system, while can also
Enough promote to form circulation, wash away, drive chip 13 to excrete, there is the function of fluid multiplexing.Conveyance conduit 10 or auxiliary tube
The material that road 11 is conveyed into blood vessel 14 with safe condition includes but is not limited to physiological saline, by defeated into local circulation chamber
Send material and be engaged to external discharge chip 13, to keep local circulation chamber interior pressure and ambient stable in blood vessel 14,
And form certain circulation scouring effect.It is listed below several situations：
(1) material is conveyed to the local circulation chamber that above-mentioned step 2 is established by conveyance conduit 10, drives impeller 5 and grind
Mill element 6 rotates, and carries out excision work, discharges chip 13 to external by suction channel 8 and subsidiary conduit 11 in good time；
(2) material is conveyed to the local circulation chamber that above-mentioned step 2 is established by conveyance conduit 10 and subsidiary conduit 11,
Driving impeller 5 and grinding element 6 are rotated, and carry out excision work, and chip 13 is discharged to external by suction channel 8；
(3) material is conveyed to the local circulation chamber that above-mentioned step 2 is established by conveyance conduit 10, while passes through auxiliary
Pipeline 11 establishes half local circulation, drives impeller 5 and grinding element 6 to rotate, carry out excision work, fit to external ejected matter
When stop through subsidiary conduit 11 to external ejected matter, start suction channel 8, establish local circulation, by suction channel 8 to body
Outer discharge chip 13.
Step 4, after the completion of cutting off work, stop conveying material into blood vessel 14, impeller 5 and grinding element 6 stop turning
It is dynamic, stop excision work, while stop chip 13 and discharge, local circulation is closed, may expand by the release near-end of fill pipe 9 auxiliary
The medium helped in the inflatable auxiliary separate cavities 3 of separate cavities 2 and distal end.Now, complete resection work is completed, the present invention is removed into blood
Pipe 14；Complete resection work is not completed, continues the mobile present invention in blood vessel 14 and, to another specified location, repeats the above steps
(2) and (3), work is removed to continue to complete patch 12.
Although above in conjunction with accompanying drawing, invention has been described, the invention is not limited in above-mentioned, this area it is general
Logical technical staff is under the enlightenment of the present invention, in the case of present inventive concept and scope of the claimed protection is not departed from, also
Many forms can be made, these are belonged within the protection of the present invention.
Claims (3)
1. a kind of fluid-operated plaque within blood vessels remove device, including it is provided with suction channel, conveyance conduit and fill pipe
Main shaft, the main shaft is provided with the inflatable auxiliary separate cavities of near-end, the inflatable auxiliary isolation of suction hole and distal end from left to right
Chamber, the suction hole are connected with suction channel, the inflatable auxiliary separate cavities of the inflatable auxiliary separate cavities of the near-end and distal end
Be connected by respective filling hole with the fill pipe, it is characterised in that the inflatable auxiliary separate cavities of the near-end with
Grinding element is provided between suction hole, the grinding element left surface is provided with impeller, grinding element and the impeller place
The major axis diameter of position is less than the major axis diameter at left and right sides of it, and the transfer passage is arranged at the main shaft portion on the left of impeller,
The right output port of the transfer passage is located at the right flank of main shaft portion on the left of the impeller, and is connected with blood vessel.
A kind of 2. fluid-operated plaque within blood vessels remove device according to claim 1, it is characterised in that the impeller
The main shaft portion in left side is provided with subsidiary conduit, and the right output port of the accessory channel is located at the right side of main shaft portion on the left of the impeller
Side, and be connected with blood vessel.
A kind of 3. fluid-operated plaque within blood vessels remove device according to claim 1, it is characterised in that the conveying
Pipeline and suction channel at least respectively set one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610482786.4A CN105852932B (en) | 2016-06-23 | 2016-06-23 | A kind of fluid-operated plaque within blood vessels remove device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610482786.4A CN105852932B (en) | 2016-06-23 | 2016-06-23 | A kind of fluid-operated plaque within blood vessels remove device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105852932A CN105852932A (en) | 2016-08-17 |
| CN105852932B true CN105852932B (en) | 2018-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610482786.4A Active CN105852932B (en) | 2016-06-23 | 2016-06-23 | A kind of fluid-operated plaque within blood vessels remove device |
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| CN (1) | CN105852932B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3360496B1 (en) * | 2017-02-10 | 2022-04-06 | Erbe Elektromedizin GmbH | Fluid connection device and cryosurgical probe having same |
| CN110013290A (en) * | 2018-10-17 | 2019-07-16 | 深圳达芬奇创新科技有限公司 | Barrier assembly is used in a kind of cleaning of blood vessel depths blood lipid rubbish |
| CN115054326B (en) * | 2022-07-26 | 2022-11-15 | 上海鸿脉医疗科技有限公司 | Rotary grinding system, rotary grinding assembly and rotary grinding head thereof |
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| CN102088920A (en) * | 2008-04-10 | 2011-06-08 | 阿瑟罗迈德公司 | Atherectomy devices and methods |
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| CN205866805U (en) * | 2016-06-23 | 2017-01-11 | 天津大学 | Patch clearing device in fluid drive's blood vessel |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8801736B2 (en) * | 2010-11-19 | 2014-08-12 | Gil Vardi | Percutaneous thrombus extraction device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102088920A (en) * | 2008-04-10 | 2011-06-08 | 阿瑟罗迈德公司 | Atherectomy devices and methods |
| CN102014773A (en) * | 2008-04-23 | 2011-04-13 | 阿维格公司 | Catheter system and method for boring through blocked vascular passages |
| CN102743208A (en) * | 2011-04-22 | 2012-10-24 | 陈启星 | Vessel warp rinser |
| CN103767760A (en) * | 2012-08-13 | 2014-05-07 | 柯惠有限合伙公司 | Apparatus and method for clot disruption and evacuation |
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| CN105852932A (en) | 2016-08-17 |
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