CN104586469A - Local circulation type thrombus removing device - Google Patents
Local circulation type thrombus removing device Download PDFInfo
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- CN104586469A CN104586469A CN201310534616.2A CN201310534616A CN104586469A CN 104586469 A CN104586469 A CN 104586469A CN 201310534616 A CN201310534616 A CN 201310534616A CN 104586469 A CN104586469 A CN 104586469A
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- interior pipe
- head end
- thrombosis
- impeller
- thrombus
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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
- A61B17/22004—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 using mechanical vibrations, e.g. ultrasonic shock waves
- A61B17/22012—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 using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
- A61B2017/00238—Type of minimally invasive operation
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
- A61B2018/00345—Vascular system
- A61B2018/00404—Blood vessels other than those in or around the heart
- A61B2018/0041—Removal of thrombosis
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Vascular Medicine (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Mechanical Engineering (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- External Artificial Organs (AREA)
Abstract
The invention discloses a local circulation type thrombus removing device. The local circulation type thrombus removing device mainly comprises an impeller assembly used for smashing the thrombus, a head end protective pipe, an inner pipe, an outer pipe, a first Y-shaped valve and a second Y-shaped valve. A first annular cavity is formed between the inner pipe and the impeller assembly, a second annular cavity is formed between the outer pipe and the inner pipe, the first Y-shaped valve is provided with a fluid infusion connector used for being connected with a fluid infusion pump, the fluid infusion connector is communicated with the second annular cavity, the second Y-shaped valve is provided with a thrombus removing connector used for being connected with a thrombus sucking pump, and the thrombus removing connector is communicated with the first annular cavity. The local circulation type thrombus removing device can improve the thrombus removing rate, prevent the venous intima from being injured, completely discharge the thrombus broken grains out of the body and prevent normal blood from excessive loss. The local circulation type thrombus removing device is especially suitable for removing the human body deep femoral vein thrombus by the adoption of the percutaneous minimally invasive surgery.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, particularly a kind of local circulation formula thrombosis is got except device.
Background technology
Due to reasons such as dietary structure changes, the sickness rate of people's thrombotic disease presents and increases trend, and especially deep vein thrombosis of lower extremity case gets more and more.Phlebothrombosis deposition can cause circulatory disorders and stasis, thus in vein blood vessel, form thrombophlebitis disease.For chronic iliofemoral vein thrombosis patients, phlebothrombosis can cause the long-term swelling of lower limb, and varicosis, ulceration is not healed.In addition, also may transfer to other positions of health and internal organs after phlebothrombosis comes off, thus cause serious complication.Such as, the thrombosis in vein is shifted by vein blood vessel and in pulmonary deposition, can cause pulmonary infarction, cause death.The Therapeutic Method of thrombotic disease has: 1, medical treatment, mainly adopts the Drug therapy such as anticoagulant, thrombolytic.Drug therapy occasional occurs bleeding or the symptom such as hemorrhage; In addition, to some emergency case, adopt pharmacotherapy speed too slow.2, surgical operation therapy, an otch is opened at position blood vessel having thrombosis deposit, via this otch removal of thromboses.Operative treatment for patients with deep venous thrombosis difficulty and wound large; And, get bolt process and inherently likely cause remaining thrombi to enter pulmonary, thus cause fatal pulmonary infarction.3, interventional therapy, can adopt the mode of percutaneous puncture, and special Wicresoft's interventional operation equipment is introduced vein by the otch small by patient body-surface one, directly carries out contact thrombolysis and remove bolt under x-ray fluoroscopy.Compared with the surgical operation therapy of routine, interventional therapy wound is less, and the impact by the phlebothrombosis deposition site degree of depth is less.
Through finding the literature search of prior art, the patent No. is that the Chinese utility model patent " vein Fogarty " (Authorization Notice No. is CN2659350Y) of ZL200320121061.0 discloses a kind of vein Fogarty.This patent by stilet, get bolt pipe and sacculus 3 part is formed, advantage does not damage vein valve for taking out extremity deep venous thrombosis.The patent No. is that the Chinese utility model patent " Catheter for removing thrombus from blood vessel " (Authorization Notice No. is CN2268496Y) of ZL96245233.5 discloses a kind of Catheter for removing thrombus from blood vessel.This patent is actually a kind of double channel catheter, and wherein a chamber links sacculus, for supplying liquid or gas makes inflation; Another chamber is used for blood jet flow.Whether the advantage of this patent is for can arrive thrombosis position by automatic discrimination conduit head end.This two patent all adopts a sacculus to perform the function of scraping removing thrombus.For some old thrombosis, may be difficult to realize disposable striking off, so just need to reinsert conduit, scraping off residual thrombosis again after dilatation balloon, is easy to cause the broken little thrombi of part remain in Ink vessel transfusing and can not thoroughly be taken out.
The patent No. is that Chinese utility model patent " being used for the treatment of the slidingtype combined catheter of thrombosis " (Authorization Notice No. is CN201192520Y) of ZL200820098250.3 discloses a kind of slidingtype combined catheter being used for the treatment of thrombosis.This patent is made up of a core pipe and a sleeve pipe, and core pipe and sleeve pipe head end link a sacculus respectively.This patent is intended scraping removing thrombus by the dragging back and forth of sleeve pipe head end sacculus.The advantage of this patent is the function that employing two sacculus realize blood vessel temporary plugging and thrombosis respectively and strike off, thus reduces the probability of broken microthrombus block remnants.
Application number is the conduit that the Chinese invention patent " conduit of fetching intravascular thrombus in human internal organ " (publication number is CN1072867A) of 92106702.X discloses a kind of fetching intravascular thrombus in human internal organ.This patent by an inner catheter with sacculus and one with horn mouth and the trocar sheath offering side opening form.This patent can in the process of scraping removing thrombus not blocking blood flow.But, the horn mouth of this patent is a fixed-size solid structure, the thickness that can not adapt to different patient vessel is not etc., in addition, this solid structure is unfavorable for the sealing of trocar sheath head end and human vas contact site, add near horn mouth and also have some side openings, these reasons all can not thoroughly be taken out causing the broken little thrombi of part to remain in Ink vessel transfusing.
In above 4 patents, the element that direct execution thrombosis strikes off function is sacculus.Sacculus this as flexible member, and smooth surface, adds human vas wall and has certain elasticity, and this makes performing process medium vessels that thrombosis strikes off and sacculus all can occur to a certain degree " yielding ".Cause some thrombosis, especially old thrombosis can not be struck off up hill and dale.
The patent No. is that the Chinese utility model patent " getting bolt device " (Authorization Notice No. is CN201042451Y) of ZL200620164685.4 discloses one and gets bolt device.This patent adopts the umbrella-shaped structure be made up of memory alloy wire to carry out thrombosis and strikes off, and adopts sleeve pipe to be excreted by the thrombosis after striking off.This patent adopts tinsel but not sacculus carries out thrombosis strikes off, and can improve scraping effect.But, tinsel simultaneously also likely scratch blood vessel.
Above-mentioned prior art still Shortcomings in following 3: 1, bolt core or old thrombosis are got except effect is undesirable, get except rate is low; 2, get bolt process arterial intima, easily form secondary thrombus; 3, get the thrombosis nibs parts produced in the process of fastening to remain in blood inside and enter bypass artery and internal organs, relevant internal organs generation thromboembolism or nonfunction may be caused; 4, getting normal blood in bolt process runs off many, easily causes patient's anemia.
Summary of the invention
Object of the present invention, exactly in order to solve the problem, provides a kind of local circulation formula thrombosis to get except device.
In order to achieve the above object, present invention employs following technical scheme: a kind of local circulation formula thrombosis is got except device, and it comprises:
For smashing the impeller assembly of thrombosis;
Head end protecting tube, it is sleeved on the head end of impeller assembly;
Interior pipe, it is outer and be connected with the rear portion of head end protecting tube is nested that it is sleeved on impeller assembly, forms the first ring cavity between interior pipe and impeller assembly;
Outer tube, it is sleeved on outside interior pipe, forms the second ring cavity between outer tube and interior pipe;
First Y shape valve, it is sleeved on the rear portion of outer tube, and front end is connected with the rear end of outer tube, and the first Y shape valve is provided with the fluid infusion joint for being connected with fluid infusion pump, and this fluid infusion joint is communicated with the second ring cavity;
Second Y shape valve, after it is sleeved on the first Y shape valve, front end is connected with the rear end of interior pipe, the second Y shape valve be provided with for the row's cotter joint taken out bolt pump and be connected, this row's cotter joint is communicated with the first ring cavity.
One transmission square shaft for being connected with motor-driven;
One power transmission shaft being connected to transmission square shaft front;
One impeller shaft being connected to power transmission shaft front;
One impeller being arranged on impeller shaft front end;
Described impeller shaft and the impeller be mounted thereon are closed in head end protecting tube, are provided with location bearing between impeller shaft and head end protecting tube.
The front opening of described head end protecting tube is formed inhales bolt mouth, and the sidewall of head end protecting tube is respectively equipped with pressure relief opening and row's bolt mouth, and pressure relief opening and row's bolt mouth lay respectively at the front and back of described location bearing.
The front end of described interior pipe is provided with wide diameter portion, and the rear portion of described head end protecting tube is connected with this wide diameter portion is nested, and the front-end port of described outer tube also and between interior pipe forms fluid infusion mouth after the wide diameter portion of interior pipe.
The first sealing ring for preventing fluid infusion seepage is provided with between described first Y shape valve rear end and interior pipe; The second sealing ring for preventing discharge liquor seepage is provided with between described second Y shape valve and impeller shaft.
Local circulation formula thrombosis of the present invention get except device scrape removing thrombus thoroughly, damage tunica intima of vein can be prevented, thrombosis thoroughly can be excreted, avoid residual in human body of broken microthrombus block.The present invention is suitable for that human limb is venothrombotic to be struck off, and is especially applicable to adopting minimal invasion surgical technic to carry out striking off of human body femoral vein depths thrombosis.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram that local circulation formula thrombosis of the present invention gets except device;
Fig. 2 is the head end structural representation that local circulation formula thrombosis of the present invention gets except device;
Fig. 3 is the end construction schematic diagram that local circulation formula thrombosis of the present invention gets except device;
Fig. 4 is the head end sectional structure schematic diagram that local circulation formula thrombosis of the present invention gets except device;
Fig. 5 is the head end protecting tube structural representation in the present invention;
Fig. 6 is the impeller assembly structural representation in the present invention;
Fig. 7 is the working state schematic representation that local circulation formula thrombosis of the present invention gets except device;
Fig. 8 is the operation principle schematic diagram that local circulation formula thrombosis of the present invention gets except device.
Detailed description of the invention
See Fig. 1, coordinate see Fig. 2-Fig. 6, local circulation formula thrombosis of the present invention is got except device, comprising: for smashing the impeller assembly 1 of thrombosis, head end protecting tube 2, interior pipe 3, outer tube 4, first Y shape valve 5 and the second Y shape valve 6.
Coordinate see Fig. 6, Fig. 3, the above-mentioned impeller assembly 1 for smashing thrombosis comprises further: the impeller shaft 13, that a power transmission shaft 12, being connected to transmission square shaft front for the transmission square shaft 11, be connected with motor-driven is connected to power transmission shaft front is arranged on the impeller 14 of impeller shaft front end.
Coordinate see Fig. 4, Fig. 5; head end protecting tube 2 is sleeved on the head end of impeller assembly; the front opening of this head end protecting tube is formed inhales bolt mouth 21; the sidewall of head end protecting tube is respectively equipped with pressure relief opening 22 and row's bolt mouth 23; be provided with location bearing 24 between impeller shaft and head end protecting tube, pressure relief opening and row's bolt mouth lay respectively at the front and back of location bearing.Impeller shaft 13 and the impeller 14 be mounted thereon are closed in head end protecting tube.
It is outer and be connected with the rear portion of head end protecting tube 2 is nested that interior pipe 3 is sleeved on impeller assembly 1, forms the first ring cavity 7 between interior pipe and impeller assembly.Be provided with wide diameter portion in the front end of interior pipe 3, the rear portion of head end protecting tube 2 is connected with this wide diameter portion is nested.Outer tube 4 is sleeved on outside interior pipe 3, forms the second ring cavity 8 between outer tube and interior pipe; The front-end port of outer tube 4 also and between interior pipe forms fluid infusion mouth 41 after the wide diameter portion of interior pipe.
First Y shape valve 5 is sleeved on the rear portion of outer tube 4, and front end is connected with the rear end of outer tube 4, and the first Y shape valve is provided with the fluid infusion joint 51 for being connected with fluid infusion pump, and this fluid infusion joint is communicated with the second ring cavity.
Second Y shape valve 6 is sleeved on impeller assembly and after being serially connected in the first Y shape valve, front end is connected with the rear end of interior pipe, the second Y shape valve be provided with for the row's cotter joint 61 taken out bolt pump and be connected, this row's cotter joint is communicated with the first ring cavity.
The first sealing ring 9 for preventing fluid infusion seepage is provided with between the first Y shape valve 5 rear end and interior pipe 3; Be provided with between the second Y shape valve 6 rear end and the power transmission shaft 12 of impeller assembly for preventing second of discharge liquor seepage to seal
10.
Operation principle of the present invention can composition graphs 7, Fig. 8 be described as follows:
Shown in Fig. 7, Fig. 8,15 represent human body lower limbs Deep venou, and 16 represent deep venous thrombosis.In order to get except deep venous thrombosis, local circulation formula thrombosis of the present invention be got except device inserts human body lower limbs Deep venou, making its head end reach deep venous thrombosis position.Transmission square shaft 11 is connected with motor, fluid infusion joint 51 is connected with fluid infusion pump, by row's cotter joint 61 with take out bolt pump and be connected.Then starter motor, fluid infusion pump and take out bolt pump, rotated by power transmission shaft 12, impeller shaft 13 impeller 14, the negative relative that wheel rotation produces is inhaled thrombosis to suction bolt mouth 21, is broken into particle and be expelled to vein local by pressure relief opening 22 after thrombosis contact impeller.The normal saline come by fluid infusion pumping then enters second ring cavity 8 of asking of interior pipe and outer tube through fluid infusion joint 51, vein local is injected from fluid infusion mouth 4l, small part flows into vein to the right and the section of thrombosis does not occur and normal blood merges, major part flows left, merge with the thrombosis particle smashed, together from arranging bolt mouth 23 via the first ring cavity 7 between interior pipe and power transmission shaft 1l under the effect of negative relative, excrete through row's cotter joint 61.
Claims (5)
1. local circulation formula thrombosis is got except a device, it is characterized in that comprising:
For smashing the impeller assembly of thrombosis;
Head end protecting tube, it is sleeved on the head end of impeller assembly;
Interior pipe, it is outer and be connected with the rear portion of head end protecting tube is nested that it is sleeved on impeller assembly, forms the first ring cavity between interior pipe and impeller assembly;
Outer tube, it is sleeved on outside interior pipe, forms the second ring cavity between outer tube and interior pipe;
First Y shape valve, it is sleeved on the rear portion of outer tube, and front end is connected with the rear end of outer tube, and the first Y shape valve is provided with the fluid infusion joint for being connected with fluid infusion pump, and this fluid infusion joint is communicated with the second ring cavity;
Second Y shape valve, after it is serially connected in the first Y shape valve, front end is connected with the rear end of interior pipe, the second Y shape valve be provided with for the row's cotter joint taken out bolt pump and be connected, this row's cotter joint is communicated with the first ring cavity.
2. local circulation formula thrombosis as claimed in claim 1 is got except device, it is characterized in that: described impeller assembly comprises further:
One transmission square shaft for being connected with motor-driven;
One power transmission shaft being connected to transmission square shaft front;
One impeller shaft being connected to power transmission shaft front;
One impeller being arranged on impeller shaft front end;
Described impeller shaft and the impeller be mounted thereon are closed in head end protecting tube, are provided with location bearing between impeller shaft and head end protecting tube.
3. local circulation formula thrombosis as claimed in claim 2 is got except device; it is characterized in that: the front opening of described head end protecting tube is formed inhales bolt mouth; the sidewall of head end protecting tube is respectively equipped with pressure relief opening and row's bolt mouth, and pressure relief opening and row's bolt mouth lay respectively at the front and back of described location bearing.
4. local circulation formula thrombosis as claimed in claim 1 is got except device; it is characterized in that: the front end of described interior pipe is provided with wide diameter portion; the rear portion of described head end protecting tube is connected with this wide diameter portion is nested, and the front-end port of described outer tube also and between interior pipe forms fluid infusion mouth after the wide diameter portion of interior pipe.
5. local circulation formula thrombosis as claimed in claim 1 is got except device, it is characterized in that: be provided with the first sealing ring for preventing fluid infusion seepage between described first Y shape valve rear end and interior pipe; Described second Y shape valve and impeller shaft it
Between be provided with the second sealing ring for preventing discharge liquor seepage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310534616.2A CN104586469B (en) | 2013-11-01 | 2013-11-01 | Local circulation formula thrombosis removes device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310534616.2A CN104586469B (en) | 2013-11-01 | 2013-11-01 | Local circulation formula thrombosis removes device |
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| Publication Number | Publication Date |
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| CN104586469A true CN104586469A (en) | 2015-05-06 |
| CN104586469B CN104586469B (en) | 2016-09-14 |
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| CN201310534616.2A Expired - Fee Related CN104586469B (en) | 2013-11-01 | 2013-11-01 | Local circulation formula thrombosis removes device |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106073856A (en) * | 2016-05-16 | 2016-11-09 | 西安交通大学第附属医院 | A kind of cardiovascular thromboembolism is got involved and is taken pin device |
| CN107854114A (en) * | 2017-10-12 | 2018-03-30 | 中国科学院上海光学精密机械研究所 | Passive drive rotation sweep optic probe |
| WO2018161959A1 (en) * | 2017-03-10 | 2018-09-13 | 上海心玮医疗科技有限公司 | Thrombectomy device system |
| 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 |
| CN110313974A (en) * | 2019-08-06 | 2019-10-11 | 河南科技大学第一附属医院 | A kind of thrombus remove device with concealed crushing head |
| CN111202559A (en) * | 2020-02-27 | 2020-05-29 | 北京久事神康医疗科技有限公司 | Thrombus removal device and use method thereof |
| US10722631B2 (en) | 2018-02-01 | 2020-07-28 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use and manufacture |
| US11185677B2 (en) | 2017-06-07 | 2021-11-30 | Shifamed Holdings, Llc | Intravascular fluid movement devices, systems, and methods of use |
| US11511103B2 (en) | 2017-11-13 | 2022-11-29 | Shifamed Holdings, Llc | Intravascular fluid movement devices, systems, and methods of use |
| US11654275B2 (en) | 2019-07-22 | 2023-05-23 | Shifamed Holdings, Llc | Intravascular blood pumps with struts and methods of use and manufacture |
| US11724089B2 (en) | 2019-09-25 | 2023-08-15 | Shifamed Holdings, Llc | Intravascular blood pump systems and methods of use and control thereof |
| US11964145B2 (en) | 2019-07-12 | 2024-04-23 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of manufacture and use |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106073856B (en) * | 2016-05-16 | 2018-09-18 | 西安交通大学第一附属医院 | It is a kind of angiocarpy embolism intervention take pin device |
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| US11583302B2 (en) | 2017-03-10 | 2023-02-21 | Shanghai Heartcare Medical Technology Co., Ltd. | Thrombectomy device system |
| US11185677B2 (en) | 2017-06-07 | 2021-11-30 | Shifamed Holdings, Llc | Intravascular fluid movement devices, systems, and methods of use |
| US11717670B2 (en) | 2017-06-07 | 2023-08-08 | Shifamed Holdings, LLP | Intravascular fluid movement devices, systems, and methods of use |
| 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 |
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| CN107854114A (en) * | 2017-10-12 | 2018-03-30 | 中国科学院上海光学精密机械研究所 | Passive drive rotation sweep optic probe |
| CN107854114B (en) * | 2017-10-12 | 2020-08-04 | 中国科学院上海光学精密机械研究所 | Passive driving rotary scanning optical probe |
| US11511103B2 (en) | 2017-11-13 | 2022-11-29 | Shifamed Holdings, Llc | Intravascular fluid movement devices, systems, and methods of use |
| US11229784B2 (en) | 2018-02-01 | 2022-01-25 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use and manufacture |
| US10722631B2 (en) | 2018-02-01 | 2020-07-28 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use and manufacture |
| US12076545B2 (en) | 2018-02-01 | 2024-09-03 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of use and manufacture |
| US11964145B2 (en) | 2019-07-12 | 2024-04-23 | Shifamed Holdings, Llc | Intravascular blood pumps and methods of manufacture and use |
| US11654275B2 (en) | 2019-07-22 | 2023-05-23 | Shifamed Holdings, Llc | Intravascular blood pumps with struts and methods of use and manufacture |
| CN110313974A (en) * | 2019-08-06 | 2019-10-11 | 河南科技大学第一附属医院 | A kind of thrombus remove device with concealed crushing head |
| US11724089B2 (en) | 2019-09-25 | 2023-08-15 | Shifamed Holdings, Llc | Intravascular blood pump systems and methods of use and control thereof |
| CN111202559A (en) * | 2020-02-27 | 2020-05-29 | 北京久事神康医疗科技有限公司 | Thrombus removal device and use method thereof |
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| CN104586469B (en) | 2016-09-14 |
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