CN112617963B - Thrombus clearing device - Google Patents

Thrombus clearing device Download PDF

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Publication number
CN112617963B
CN112617963B CN202011583110.7A CN202011583110A CN112617963B CN 112617963 B CN112617963 B CN 112617963B CN 202011583110 A CN202011583110 A CN 202011583110A CN 112617963 B CN112617963 B CN 112617963B
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China
Prior art keywords
thrombus
net surface
opening
cutting
clear
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Active
Application number
CN202011583110.7A
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Chinese (zh)
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CN112617963A (en
Inventor
王叶
赵铁彬
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Jilin Yifang Technology Co ltd
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Jilin Yifang Technology Co ltd
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Priority to CN202011583110.7A priority Critical patent/CN112617963B/en
Publication of CN112617963A publication Critical patent/CN112617963A/en
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22Implements 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
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22Implements 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
    • A61B2017/22079Implements 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
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22Implements 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
    • A61B2017/22081Treatment of vulnerable plaque
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22Implements 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
    • A61B2017/22082Implements 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 after introduction of a substance
    • A61B2017/22084Implements 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 after introduction of a substance stone- or thrombus-dissolving

Abstract

The invention discloses a thrombus removing device, which is technically characterized by comprising a first net surface and a second net surface connected with one end of the first net surface; the first net surface and the second net surface are fixedly connected through a connecting ring; a thrombus needle is arranged at the front end of the first net surface; a hose is arranged in the first net surface and the second net surface; the rear end of the second net surface is provided with a cleaning part; the cleaning part comprises a cleaning pipe communicated with the inside of the second net surface; an opening is formed in the side face of the cleaning pipe; a cleaner is arranged in the cleaning pipe; the cleaner comprises a connecting end; the remover further comprises a cutting tube; the invention has the beneficial effects of removing foreign matters such as thrombus, thrombus fragments, blood clots, blood lipid plaques, atherosclerosis and the like in blood vessels, or removing the thrombus formed on the inner surface of a vascular stent placed in a human blood vessel and causing vascular endothelial hyperplasia.

Description

Thrombus clearing device
Technical Field
The invention relates to the field of medical instruments, in particular to a thrombus removing device.
Background
Thrombus is a blood clot formed by abnormal aggregation of red blood cells, platelets, fibrin, white blood cells and other components in blood according to different proportions in a pathological condition of an endogenous or exogenous coagulation system. Thrombus can be formed not only in blood vessels of any part of the body, but also in various tissues and organs of the human body. Thromboses can cause vascular occlusion and blood flow obstruction, cause ischemia and even necrosis of related tissues and organs, and generate corresponding symptoms of tissue and organ dysfunction. Myocardial large-area infarction caused by thrombosis, arterial and venous vessel cavity occlusion, ischemic cerebral apoplexy and other related cardiovascular diseases become clinically common diseases and frequently-occurring diseases, and cause extremely high mortality and disability rate for a large number of patients;
aiming at the clinical problems, the early stage is mostly treated by adopting a medicine thrombolysis method, but the method is only suitable for thrombus with smaller volume, has quite unsatisfactory treatment effect on the occlusion of the thrombus with large volume, is mainly clinically represented by the conditions of slow thrombolysis speed, low vascular recanalization rate, long lumen recanalization time, poor prognosis effect and the like, and is generally suitable for the medicine thrombolysis treatment of only about 3 to 5 percent of patients. In recent years, a mechanical thrombus removing method has become an important research direction in the field of thrombus treatment, and the method is to convey a thrombus removing device to the vicinity of thrombus and then capture and remove the thrombus from the body through the thrombus removing device. The mechanical thrombus taking method has short operation time, less related complications, thorough thrombus removal and good prognosis effect.
However, in the conventional thrombus removing device, after removing thrombus, suction is generally performed by a negative pressure suction tube, and because the suction tube is small, it is difficult to suck a large volume of thrombus solid by the negative pressure suction tube.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides a thrombus removing device which has the beneficial effects of removing foreign matters such as thrombus, thrombus fragments, blood clots, blood lipid plaques, atherosclerosis and the like in blood vessels or removing the thrombus formed on the inner surface of a vascular stent placed in a human blood vessel and causing vascular endothelial hyperplasia.
In order to achieve the above purpose, the present invention provides the following technical solutions: a thrombi removal device, comprising: comprises a first net surface and a second net surface connected with one end of the first net surface; the first net surface and the second net surface are fixedly connected through a connecting ring; a thrombus needle is arranged at the front end of the first net surface; a hose is arranged in the first net surface and the second net surface; the rear end of the second net surface is provided with a cleaning part; the cleaning part comprises a cleaning pipe communicated with the inside of the second net surface; an opening is formed in the side face of the cleaning pipe; a cleaner is arranged in the cleaning pipe; the cleaner comprises a connecting end; the remover further comprises a cutting tube; one side of the cutting tube protrudes outwards to form a protruding part; the convex part is provided with an inclined cutting opening; the boss mates with the opening.
By adopting the technical scheme: the structure of the first net surface and the second net surface is a spindle structure, the elastic arrangement is adopted, the expansion of the volumes of the first net surface and the second net surface is realized by pulling the hose, the diameter of a blood vessel is enlarged, the hose is communicated with a thrombus needle, thrombolytic medicine can be injected, so that thrombolysis is promoted, after the thrombus is dissolved, the whole first net surface and the second net surface penetrate through the thrombus, then the remover is rotated, the remover is driven by an external rotating device to stir back and forth in an opening, so that the thrombus of an intravascular arm which cannot be dissolved by the medicine is removed, and the external rotating device is a motor which can be connected with a connecting end in the prior art or a pneumatic device, and the rotation of the connecting end is realized by a control chip; when the cleaner cuts, pull the hose, whole device backward removes simultaneously, and the vascular inner wall opposite with the opening is under the effect of vascular elasticity, and is relative with the bellying in the opening, and the bellying is scraped the thrombus, and the thrombus of striking off is gone into in the cutting tube by the cutting mouth, and at this moment, first net face and second net face volume enlarge, and inside formation negative pressure holds the thrombus piece of solid to the realization is clear away the thrombus.
The invention is further provided with: the cutting opening is arranged in a strip shape; a plurality of ribs are arranged on two sides of the cutting opening; the cutting tube reciprocates in the opening along the circumferential direction of the clearing tube, so that the cutting opening can cut thrombus in the blood vessel; the ribs are arranged in parallel, and the parallel direction of the ribs is consistent with the cutting direction of the cutting opening.
By adopting the technical scheme: the shape of cutting mouth can be convenient clear away the blood vessel inner wall, and the thrombus of convenient cutting gets into in first guipure and the second guipure by the cutting pipe, and the removal direction of portion is against blood flow direction, like this when first guipure and the second guipure negative pressure, can avoid blood to flow into inside first guipure and the second guipure by the first through-hole on the stopper.
The invention is further provided with: a limiting block is arranged between the thrombus needle and the hose; the limiting block is fixedly connected with the front end of the first net surface; the limiting block is arranged in a plum blossom shape; the thrombus needle is arranged in the middle of the limiting block; the limiting block is provided with a plurality of first through holes for connecting the inside of the first net surface with the blood vessel.
By adopting the technical scheme: the stopper is connected with the hose, can make things convenient for the hose to stimulate the stopper, and the remover of stopper and other end extrudees first mesh and second mesh, realizes the expansion of first mesh and second mesh volume, conveniently forms the negative pressure, holds the thrombus, simultaneously when holding after full, makes things convenient for inside inhaled blood to flow in from first through-hole.
The invention is further provided with: a plurality of support rings are arranged in the first net surface and the second net surface; the hose is movably sleeved with the supporting ring; a second through hole is formed in one side of the cleaning pipe; the hose movably passes through the second through hole; the support ring is provided with two.
By adopting the technical scheme: the support ring is movably sleeved on the hose to support the inside of the first net surface and the second net surface, and the second through Kong Fangbian hose passes through the first net surface and the second net surface and then movably passes through the hose.
The invention is further provided with: the first net surface and the second net surface are arranged into spindle-shaped net surfaces which are mutually staggered to form grids by a plurality of lines or spindle-shaped net surfaces which are formed by a plurality of parallel lines; the first net surface and the second net surface are coated with elastic films.
By adopting the technical scheme: the elastic membrane can seal the inside of the first net surface and the second net surface, so that negative pressure is formed after the volume is enlarged conveniently, and thrombus is adsorbed.
The invention is further provided with: the rear end of the first net surface is integrally connected with the front end of the second net surface, and the lines fixedly penetrate through the connecting ring; the inner diameter of the connecting ring is smaller than the outer diameter of the supporting ring.
By adopting the technical scheme: the support to first guipure and second guipure can be realized to the go-between, makes things convenient for the inflation of both, because the go-between is fixed, the position that the go-between was located can not expand.
The invention is further provided with: an annular groove is formed in the inner wall of the cleaning pipe; the opening is connected with the annular groove, and the width of the opening is equal to that of the annular groove.
By adopting the technical scheme: the setting of annular groove can make the bellying and clear away intraductally relatively, simultaneously, and the bellying can set up to elastic structure, such as elastic metal or rubber, when the remover got into in the blood vessel, the bellying was hard-packed into the annular groove by external force the position, and is not relative with the opening, after reaching appointed position, through rotating, in the bellying got into the opening, was spacing by the opening to prevent the damage of incision to the blood vessel.
Drawings
FIG. 1 is a schematic diagram of the structure of the present embodiment;
FIG. 2 is a schematic view of the structure of the purge tube of the present embodiment;
FIG. 3 is a schematic view of the cleaner according to the present embodiment;
fig. 4 is a schematic view of the structure of the present embodiment in a water tube (the arrow direction is the blood flow direction).
Reference numerals: 1. a first web; 2. a second web; 3. a connecting ring; 4. a thrombotic needle; 5. a hose; 6. a cleaning part; 7. removing the pipe; 8. an opening; 9. a cleaner; 10. a connection end; 11. cutting the tube; 12. a boss; 13. cutting a port; 14. a rib; 15. a limiting block; 16. a first through hole; 17. a second through hole; 18. an annular groove.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present embodiment discloses a thrombus removal device, as shown in fig. 1 to 4, having the beneficial effects of removing foreign substances such as intravascular thrombus, thrombus fragments, blood clots, blood lipid plaques, atherosclerosis, etc., or removing vessel thrombus formed on the inner surface of a vascular stent placed in a human body vessel and causing vascular endothelial hyperplasia. Comprises a first net surface 1 and a second net surface 2 connected with one end of the first net surface 1; the first net surface 1 and the second net surface 2 are fixedly connected through a connecting ring 3; the front end of the first net surface 1 is provided with a thrombus needle 4; a hose 5 is arranged in the first net surface 1 and the second net surface 2; the rear end of the second net surface 2 is provided with a cleaning part 6; the cleaning part 6 comprises a cleaning pipe 7 communicated with the inside of the second net surface 2; an opening 8 is arranged on the side surface of the cleaning pipe 7; a cleaner 9 is arranged in the cleaning pipe 7; the cleaner 9 comprises a connection end 10; the remover 9 further comprises a cutting tube 11; one side of the cutting tube 11 is outwards protruded to form a protrusion 12; the convex part 12 is provided with an inclined cutting opening 13; the boss 12 mates with the opening 8.
By adopting the technical scheme: the structure of the first net surface 1 and the second net surface 2 is a spindle structure, the elastic arrangement is realized by pulling the hose 5, the expansion of the volumes of the first net surface 1 and the second net surface 2 is realized, the maximum diameter of the first net surface 1 and the second net surface 2 during the expansion of the volumes is 3-5MM, the longest length of the first net surface 1 and the second net surface 2 is 15-25MM, the diameter of a blood vessel is expanded, the hose 5 is communicated with the thrombus needle 4, the outer diameter of the hose 5 is 1.5-2MM, the inner diameter of the hose 5 is 1-1.5MM, the injection of thrombolytic medicine can be carried out, so as to promote thrombolysis, after thrombolysis, the whole first net surface 1 and the second net surface 2 penetrate through thrombus, then the remover 9 is rotated, the remover 9 is toggled in the opening 8 under the drive of an external rotating device, the opening 8 is 2-3MM, the length of the opening 8 is 2-3MM, the width of the external rotating device is 1MM, the clearing of the thrombus incapable of being dissolved by the medicine of an intravascular arm is realized, and the external rotating device is the prior art, the motor connected with the connecting end 10 or the pneumatic device is realized through the rotation of the control chip; when the cleaner 9 cuts, the hose 5 is pulled, the whole device moves backwards simultaneously, the inner wall of the blood vessel opposite to the opening 8 is opposite to the protruding part 12 in the opening 8 under the action of vascular elastic force, the protruding part 12 scrapes thrombus, the scraped thrombus is fed into the cutting tube 11 through the cutting opening 13, at the moment, the volumes of the first net surface 1 and the second net surface 2 are enlarged, negative pressure is formed inside the first net surface and the second net surface 2, and solid thrombus blocks are accommodated, so that the thrombus is removed.
The cutting opening 13 is arranged in a strip shape; a plurality of ribs 14 are arranged on two sides of the cutting opening 13; the cutting tube 11 reciprocates in the opening 8 along the circumferential direction of the cleaning tube 7 so that the cutting opening 13 cuts thrombus inside the blood vessel; the ribs 14 are arranged in parallel, and the parallel direction of the ribs 14 is consistent with the cutting direction of the cutting opening 13.
By adopting the technical scheme: the shape of the cutting opening 13 can conveniently clear the inner wall of the blood vessel, thrombus which is convenient to cut enters the first net surface 1 and the second net surface 2 through the cutting tube 11, and the moving direction of the clearing part 6 is opposite to the blood flowing direction, so that when the first net surface 1 and the second net surface 2 form negative pressure, blood can be prevented from flowing into the first net surface 1 and the second net surface 2 through the first through holes 16 on the limiting block 15.
A limiting block 15 is arranged between the thrombus needle 4 and the hose 5; the limiting block 15 is fixedly connected with the front end of the first net surface 1; the limiting block 15 is arranged in a plum blossom shape; the thrombus needle 4 is arranged in the middle of the limiting block 15; the limiting block 15 is provided with a plurality of first through holes 16 for connecting the inside of the first net surface 1 with blood vessels.
By adopting the technical scheme: the stopper 15 is connected with the hose 5, can make things convenient for hose 5 to stimulate stopper 15, and stopper 15 and the scavenger 9 of the other end extrude first net face 1 and second net face 2, realize the expansion of first net face 1 and second net face 2 volume, conveniently form the negative pressure, hold thrombus, simultaneously when holding after full, make things convenient for inside inhaled blood to flow in from first through-hole 16.
A plurality of support rings are arranged in the first net surface 1 and the second net surface 2; the hose 5 is movably sleeved with the supporting ring; a second through hole 17 is formed in one side of the cleaning pipe 7; the hose 5 is moved through the second through hole 17; the support ring is provided with two.
By adopting the technical scheme: the support ring is movably sleeved on the hose 5 to support the inside of the first net surface 1 and the second net surface 2, and the second through holes 17 facilitate the movable penetration of the hose 5 after penetrating through the first net surface 1 and the second net surface 2.
The first net surface 1 and the second net surface 2 are arranged as spindle-shaped net surfaces which are mutually staggered to form a grid by a plurality of lines or spindle-shaped net surfaces which are formed by a plurality of parallel lines; an elastic film (not shown) is coated on the outer sides of the first net surface 1 and the second net surface 2.
By adopting the technical scheme: the elastic membrane can seal the inside of the first net surface 1 and the second net surface 2, so that negative pressure is formed after the volume is enlarged conveniently, and thrombus is adsorbed.
The rear end of the first net surface 1 is integrally connected with the front end of the second net surface 2, and the lines fixedly penetrate through the connecting ring 3; the inner diameter of the connecting ring 3 is smaller than the outer diameter of the supporting ring.
By adopting the technical scheme: the connecting ring 3 can support the first net surface 1 and the second net surface 2, and expansion of the first net surface 1 and the second net surface is facilitated, because the connecting ring 3 is fixed, and the part where the connecting ring 3 is located cannot be expanded.
An annular groove 18 is formed in the inner wall of the cleaning pipe 7; the opening 8 is connected with the annular groove 18 and the opening 8 is equal in width to the annular groove 18.
By adopting the technical scheme: the arrangement of the annular groove 18 can enable the protruding portion 12 to be opposite to the interior of the cleaning tube 7, meanwhile, the protruding portion 12 can be arranged to be of an elastic structure, such as elastic metal or rubber, when the cleaner 9 enters into a blood vessel, the protruding portion 12 is hard plugged into the position of the annular groove 18 by external force and is not opposite to the opening 8, and when the specified position is reached, the protruding portion 12 enters into the opening 8 through rotation and is limited by the opening 8, so that damage of the cutting opening 13 to the blood vessel is prevented.
The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. within the design concept of the present invention should be included in the scope of the present invention.

Claims (4)

1. A thrombi removal device, comprising: the utility model provides a first net face (1) and connect at the second net face (2) of first net face (1) one end, carry out fixed connection through go-between first net face (1) and the second net face (2) through go-between (3), first net face (1) front end is provided with thrombus needle (4), be provided with hose (5) in first net face (1) and the second net face (2), the rear end of second net face (2) is provided with clear portion (6), clear portion (6) including clear pipe (7) communicating with the inside of second net face (2), clear pipe (7) side is provided with opening (8), clear and be provided with in pipe (7) clear up and be provided with in the ware (9), clear up ware (9) are including link (10), clear up ware (9) are still including cutting pipe (11), one side outside protruding forming bellying portion (12) of cutting pipe (11), be provided with slope bellying (13) on bellying portion (12), cutting opening (13) are provided with in the strip shape mouth (13) both sides, cutting strip (13), cutting tube (11) are in opening (8) along clear away the circumference direction reciprocating motion of pipe (7) and make cutting opening (13) excision to the inside thrombus of blood vessel, bead (14) parallel arrangement, and the parallel direction of bead (14) is unanimous with cutting opening (13) cutting direction, be provided with stopper (15) between thrombus needle (4) and hose (5), stopper (15) and first web (1) front end fixed connection, stopper (15) set up to the plum blossom form, thrombus needle (4) set up in stopper (15) middle part, be provided with a plurality of first through-hole (16) on stopper (15) and connect inside first web (1) and blood vessel, be provided with a plurality of holding ring in first web (1) and second web (2), hose (5) are cup jointed with holding ring activity, one side of clear away pipe (7) is provided with second through-hole (17), hose (5) activity is passed second through-hole (17), two holding rings are provided with.
2. A thrombus removal device according to claim 1, wherein the first and second mesh surfaces (1, 2) are formed as a spindle-shaped mesh surface comprising a plurality of mutually interlaced lines forming a grid or as a spindle-shaped mesh surface comprising a plurality of parallel lines, and the first and second mesh surfaces (1, 2) are provided with an elastic membrane in a wrapping manner.
3. A thrombus removal device according to claim 1, wherein the rear end of the first mesh (1) is integrally connected to the front end of the second mesh (2), the lines are fixedly threaded through the connecting ring (3), and the inner diameter of the connecting ring (3) is smaller than the outer diameter of the supporting ring.
4. A thrombus removal device according to claim 1, wherein the inner wall of the removal tube (7) is provided with an annular groove (18), the opening (8) is connected to the annular groove (18) and the opening (8) is of equal width to the annular groove (18).
CN202011583110.7A 2020-12-28 2020-12-28 Thrombus clearing device Active CN112617963B (en)

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CN112617963B true CN112617963B (en) 2023-09-29

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US5709676A (en) * 1990-02-14 1998-01-20 Alt; Eckhard Synergistic treatment of stenosed blood vessels using shock waves and dissolving medication
CN102499734A (en) * 2011-11-17 2012-06-20 祖茂衡 Remover for thrombus in stents
WO2014141226A1 (en) * 2013-03-15 2014-09-18 National University Of Ireland A device suitable for removing matter from inside the lumen and the wall of a body lumen
CN109730806A (en) * 2013-03-15 2019-05-10 伊瑟拉医疗公司 Vascular treatment device and method
CN206852642U (en) * 2016-12-19 2018-01-09 广州美诺微创医疗器械有限公司 A kind of device for taking cerebrovascular thrombus
CN207898518U (en) * 2017-06-20 2018-09-25 吉林一方科技有限公司 A kind of thrombus remover
WO2019001245A1 (en) * 2017-06-30 2019-01-03 微创心脉医疗科技(上海)有限公司 Mechanical thrombus removal device
CN109998635A (en) * 2019-05-19 2019-07-12 常州市三润医疗器械科技有限公司 Unidirectional thrombus remove device
EP3747380A1 (en) * 2019-06-06 2020-12-09 Sino Medical Sciences Technology Inc. Apparatus for breaking thrombus and aspirating thrombus
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CN110755133A (en) * 2019-11-19 2020-02-07 昆山金泰医疗科技有限公司 Rotary cutting device
CN111568497A (en) * 2020-05-13 2020-08-25 黑龙江省医院 Thrombus thrombolysis clearing device and use method thereof

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