CN213310106U - A get and tie up subassembly and thrombus clearing device for iliac vein embolism thrombus clearance - Google Patents
A get and tie up subassembly and thrombus clearing device for iliac vein embolism thrombus clearance Download PDFInfo
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- CN213310106U CN213310106U CN202020677733.XU CN202020677733U CN213310106U CN 213310106 U CN213310106 U CN 213310106U CN 202020677733 U CN202020677733 U CN 202020677733U CN 213310106 U CN213310106 U CN 213310106U
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- 208000007536 Thrombosis Diseases 0.000 title claims abstract description 149
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- 238000013151 thrombectomy Methods 0.000 claims description 7
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Abstract
The utility model relates to the technical field of medical equipment, a get of iliac vein embolism thrombus clearance and thrombus clearing device is disclosed. This bolt subassembly of getting includes: the thrombus isolation filter screen and the thrombus capture basket can elastically expand in the radial direction and are coaxially arranged; the thrombus isolation filter screen and the thrombus capture net basket are fixedly connected. The thrombus removal device includes: a retrieval sheath assembly and a embolectomy assembly as previously described; the recovery sheath assembly includes: a recovery sheath and the recovery sheath base; the inner end of the recovery sheath tube is connected with the inner end of the recovery sheath tube seat; the filter screen is kept apart to the thrombus and the thrombus is caught the basket and all accomodates in retrieve the sheath intraductally, just the filter screen is kept apart to the thrombus is close to retrieve the outer end of sheath pipe. The embodiment can effectively remove the iliac vein thrombosis, has small wound and easy recovery, and can reduce the occurrence of complications.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to a get and tie subassembly and thrombus clearing device for iliac vein embolism thrombus is clear away.
Background
Deep Venous Thrombosis (DVT) is a common cardiovascular system disease in China, refers to abnormal coagulation of blood in Deep veins, and belongs to a lower limb Venous return disorder disease. The main symptoms of deep vein thrombosis include swelling and pain of the lower limbs, and pulmonary embolism can be caused in severe cases, and death can be caused.
At present, surgical thrombus removal and drug thrombolysis are mostly adopted in medicine as main treatment methods, and safe and effective interventional thrombus removal instruments are lacked. The surgery embolectomy wound is large, the requirement on the tolerance of a patient is high, and surgical complications exist; although the drug thrombolysis is an interventional therapy mode, the drug thrombolysis has poor effect on old thrombus thrombolysis, has slow thrombolysis efficiency, cannot be opened immediately and has sequelae.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides an iliac vein embolism thrombus removing device and a thrombus removing assembly thereof, which can efficiently remove iliac vein thrombus, and have small wound, easy recovery and reduced complications.
In order to solve the technical problem, an embodiment of the utility model provides a get and tie up subassembly for iliac vein embolism thrombus is clear away, include:
the thrombus isolation filter screen and the thrombus capture basket can elastically expand in the radial direction and are coaxially arranged;
the thrombus isolation filter screen and the thrombus capture net basket are fixedly connected.
The utility model discloses an embodiment still provides a thrombus removal device for iliac vein embolism, include: a retrieval sheath assembly and a embolectomy assembly as previously described;
the recovery sheath assembly includes: a recovery sheath and the recovery sheath base; the inner end of the recovery sheath tube is connected with the inner end of the recovery sheath tube seat;
the filter screen is kept apart to the thrombus and the thrombus is caught the basket and all accomodates in retrieve the sheath intraductally, just the filter screen is kept apart to the thrombus is close to retrieve the outer end of sheath pipe.
The utility model discloses iliac vein embolism thrombus clear away get and tie subassembly and thrombus clearing device gets and tie the subassembly and catch the basket including thrombus isolation filter screen and thrombus that radial elasticity inflation and coaxial setting, retrieves the sheath pipe subassembly and includes: retrieve the sheath pipe and retrieve the sheath tube seat, and filter screen and thrombus are kept apart to the thrombus and are caught the basket and all accomodate in retrieving the sheath intraductally, thereby the accessible is retrieved the sheath pipe subassembly and will be got the subassembly and send into to iliac vein embolism position distal end, retrieve the sheath pipe through withdrawing and make thrombus keep apart filter screen and thrombus catch the basket and release completely, then catch the thrombus through thrombus catch the basket, and will catch getting of thrombus and pull back to accomodate to retrieving the intraductal back of sheath, withdraw from with retrieving the sheath pipe subassembly together extrasomatic. The thrombus isolation filter screen can play a filtering role in the thrombus taking process, and prevents thrombus from flowing to a far end after being broken to cause cardiopulmonary dysfunction. Therefore, the embodiment can effectively remove the iliac vein thrombosis, has small wound and easy recovery, and can reduce the occurrence of complications.
As an example, the thrombus capture basket comprises: the basket comprises a basket body and a guide bolt net with openings at two ends; the basket bottom of the basket body is close to the thrombus isolation filter screen, and the open end of the basket body is connected with the inner end of the thrombus guide screen.
As an embodiment, the thrombus isolation filter screen is ellipsoidal, and the basket body is tubular.
In one embodiment, the outer end opening of the bolt guiding net is an oblique opening.
As an embodiment, the thrombus isolation filter screen and the basket body are woven by elastic metal wires; the bolt guiding net is formed by laser engraving.
As an embodiment, the meshes of the thrombus isolation filter screen are all in a diamond shape or approximate diamond shape.
As an example, the thrombus removal device further comprises: a perfusion assembly;
the perfusion assembly comprises: a perfusion liner tube and a perfusion tube seat;
the inner end of the perfusion liner tube is connected with the bolt taking assembly, the outer end of the perfusion liner tube is connected with the perfusion tube seat, and the side surface of the perfusion tube seat is provided with a medicine injection joint;
the outer end of the recovery sheath tube seat is provided with a flexible sealing valve, the perfusion liner tube is arranged in the recovery sheath tube, the outer end of the perfusion liner tube penetrates through the recovery sheath tube seat, and the flexible sealing valve is in sealing fit with the perfusion liner tube.
As an embodiment, the outer end of the recovery sheath and the inner end of the perfusion liner are provided with developing mark points.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly introduced below, it should be understood that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a thrombectomy device for iliac vein embolization according to an embodiment;
FIG. 2 is a schematic structural view of a thrombus-capturing basket according to an embodiment;
FIG. 3 is a schematic diagram of a thrombus-isolating filter according to one embodiment;
FIG. 4 is a schematic view of the mesh structure of the thrombus isolation screen shown in FIG. 3;
fig. 5 is a schematic structural view of a recycling sheath assembly according to an embodiment;
fig. 6 is a schematic structural view of a flexible sealing valve according to an embodiment;
FIG. 7 is a schematic diagram of an embodiment of a perfusion assembly;
fig. 8 is a schematic structural diagram of an irrigation liner according to an embodiment.
In the figure: the thrombus taking component 1, the thrombus isolating filter screen 10, the thrombus capturing basket 11, the basket body 110, the thrombus guiding net 111, the tip soft head 12, the recovery sheath tube component 2, the recovery sheath tube 20, the recovery sheath tube seat 21, the perfusion component 3, the perfusion liner tube 30, the micropores 301, the diversion trench 302, the perfusion tube seat 31 and the medicine injection joint 32.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the following will explain in detail each embodiment of the present invention with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that in various embodiments of the invention, numerous technical details are set forth in order to provide a better understanding of the present application. However, the technical solutions claimed in the claims of the present application can be implemented without these technical details and with various changes and modifications based on the following embodiments.
The embodiment of the application provides a thrombus taking assembly for iliac vein embolism thrombus removal, which can be applied to a thrombus removal device for iliac vein embolism as shown in figure 1. As shown in fig. 1 to 4, the bolt assembly 1 includes: but radial elastic expansion and coaxial setting's thrombus isolation filter screen 10 and thrombus catch basket 11, thrombus isolation filter screen 10 and thrombus catch basket 11 fixed connection.
The subassembly of emboliaing of getting of this embodiment can use with retrieving sheath pipe subassembly and the cooperation of pouring into the subassembly (specifically please see the following), it is connected with the pouring liner pipe that pours into of pouring into the subassembly to get the subassembly, filter screen 10 is kept apart to the thrombus before the use and thrombus is caught basket 11 and all accomodates in the recovery sheath pipe of retrieving the sheath pipe subassembly, in use, it is sent into iliac vein thrombus position distal end to get the subassembly, then retrieve the sheath pipe through pulling back and make thrombus keep apart filter screen and thrombus catch basket and release completely, thereby catch the thrombus through open thrombus catching basket, and simultaneously, filter the thrombus through thrombus isolation filter screen, prevent that the thrombus that breaks up from escaping to the distal end and causing cardiopulmonary dysfunction. Then the thrombus taking assembly which catches the thrombus is recovered into a recovery sheath and then is withdrawn out of the body. Therefore, the thrombus taking assembly of the embodiment is matched with other suitable iliac vein embolism thrombus clearing devices for use, so that thrombus can be efficiently and safely cleared, the wound is small, the recovery is easy, and complications are not easy to generate.
Alternatively, in the present embodiment, the thrombus-capturing basket 11 may include: a basket body 110 and a bolt guiding net 111 with two open ends. The basket body 110 is tubular and is used for catching thrombus. The basket body 110 has a bottom, which may be a closed structure, the bottom of the basket body 110 is close to the thrombus isolation filter screen 10, and the open end of the basket body 110 is connected with the inner end of the thrombus guide screen 111. The basket body 110 may be woven from elastic wire, which may be, by way of example and not limitation, nitinol wire. The inner end opening of the bolt-guiding net 111 is connected with the open end of the basket body 110 in the circumferential direction, and the bolt-guiding net 111 and the basket body 110 can be connected together by laser welding or other physical connection methods. Optionally, in this embodiment, the thrombus guiding mesh 111 may be made of a nickel-iron alloy and formed by laser engraving, and the thrombus guiding mesh 111 may be a large mesh-like structure, so that the thrombus is easily guided into the basket body 110. Alternatively, the outer end openings of the embolic net 111 may be beveled, so that the embolic net 111 has larger openings for easier introduction of thrombus into the basket body 110.
Optionally, in this embodiment, filter screen 10 is the ellipsoid form, has certain thickness to make filter screen 10 is kept apart to the thrombus have stronger elastic support power, make filter screen 10 is kept apart to the thrombus and can laminate the blood vessel inner wall after opening, and then have the thrombus filter effect of preferred, prevent that the thrombus of breaking away from flowing to the distal end, cause cardiopulmonary dysfunction. In practical applications, the thrombus-isolating filter screen 10 may be formed by interlacing nitinol wires. Optionally, the meshes of the thrombus isolation filter screen 10 are all rhombic or approximately rhombic and are regularly arranged on the thrombus isolation filter screen 10, so that the broken thrombus can be better filtered and intercepted. In the present embodiment, the mesh structure and the arrangement of the thrombus-isolating filter screen 10 are not particularly limited, and it should be understood that in some applications, the mesh structure may also be a parallelogram, a rhombus, a triangle, or other mesh structures with good filtering performance, and the mesh sizes may be the same or different.
Optionally, in this embodiment, as shown in fig. 3, the outer end of the thrombus isolation filter 10 is provided with a soft pointed head 12. The soft tip 12 does not damage the blood vessel when the embolectomy assembly is pushed to the thrombus position, and is beneficial to the pushing of the embolectomy assembly 1.
The present embodiment also provides a thrombus removal device for iliac vein embolization, as shown in fig. 1, 5 to 8, the thrombus removal device including: a recovery sheath assembly 2, a perfusion assembly 3 and a embolectomy assembly 1 as described in the previous embodiments. The recovery sheath assembly 2 includes: a recovery sheath 20 and a recovery sheath holder 21; the inner end of the recovery sheath 20 is connected to the inner end of the recovery sheath holder 21. The thrombus isolation filter screen 10 and the thrombus capture basket 11 are both contained in the recovery sheath tube 20, and the thrombus isolation filter screen 10 is close to the outer end of the recovery sheath tube 20. The infusion assembly 3 comprises: an irrigation liner 30 and an irrigation tube seat 31. The inner end of the perfusion liner tube 30 is connected with the bolt taking assembly 1, the outer end of the perfusion liner tube 30 is connected with a perfusion tube seat 31, and the side surface of the perfusion tube seat 31 is provided with a medicine injection joint 32. Optionally, the outer end of the recovery sheath seat 21 is provided with a flexible sealing valve 22, the perfusion liner 30 is arranged in the recovery sheath 20, the outer end of the perfusion liner 30 passes through the recovery sheath seat 31, and the flexible sealing valve 22 is in sealing fit with the perfusion liner 30.
In this embodiment, the thrombus isolation filter screen 10 of the embolectomy component 1 and the thread ends at the outer end of the basket body 110 can be gathered and converged on the surface of the perfusion liner tube 30, and the inclined opening end of the embolectomy screen 111 is connected with the perfusion liner tube 30, so that the embolectomy component is integrally connected with the perfusion liner tube 30. The irrigation liner 30 and the irrigation tube seat 31 may be used to push the retrieval bolt assembly to the thrombus site while also retracting the retrieval bolt assembly. The pushing and withdrawing device of the embolectomy component is not particularly limited in this embodiment, and in some applications, other instruments may be used to achieve the pushing and withdrawing of the embolectomy component.
Optionally, in this embodiment, a plurality of diversion grooves 302 are disposed between two ends of the pouring liner 30 and are parallel to the axis and distributed along the circumference, and a plurality of micropores 301 communicated with the diversion grooves 302 are disposed on the outer side surface of the front end of the pouring liner 30. That is, the irrigation liner 30 is a multi-lumen structure, and thus, the irrigation liner 30 may also provide both a guidewire channel and an irrigation medication channel. The thrombolytic drugs are injected through the infusion liner tube 30, so that the thrombus can be caught by the thrombus taking assembly more easily after rapid thrombolysis is carried out on the thrombus position.
As shown in fig. 6, in the present embodiment, the flexible sealing valve 22 is made of soft medical material, and the flexible sealing valve 22 has a sealing structure 220 for sealing engagement with the perfusion liner 30, so as to prevent blood outflow during the operation.
Optionally, the outer end of the recovery sheath 20 and the inner end of the irrigation liner 30 are provided with visualization marker points. Thereby assisting in accurately locating the position of the thrombus. In the embodiment, the number and the arrangement position of the development mark points are not particularly limited as long as the thrombus position can be accurately positioned.
With reference to fig. 1, the thrombus removal device of the embodiment of the present application is used in the following steps:
in the intervention operation treatment of thrombus removal by iliac vein embolism, an instrument intervention channel is established on the femoral vein of the affected side by local anesthesia percutaneous puncture. After the guide wire is sent to the position of crossing the thrombus, the thrombus clearing device for iliac vein embolism in the embodiment is guided by the guide wire and travels to the iliac vein embolism in the blood vessel cavity. After ensuring that the visualization mark points on the perfusion liner 30 show that the embolectomy assembly 1 completely crosses the distal end of the thrombus, the retrieval sheath base is held and pulled back to withdraw the retrieval sheath 20, so that the thrombus isolation filter screen 10 and the thrombus capture basket 11 elastically expand and expand after the healthy vessel section far away from the thrombus is completely released. If the releasing position is found to be inaccurate in the releasing process of the embolectomy component 1 or after the embolectomy component 1 is completely released, an operator can recover the embolectomy component into the recovery sheath tube under the assistance of X rays and then release the embolectomy component after repositioning. After the thrombus taking assembly 1 is released at the accurate position, the operator can use the injector to drive the thrombolytic drug into the perfusion liner 30 through the drug injection connector 32, and the thrombolytic drug is accurately sprayed to the thrombus position through the diversion trench 302 on the side surface of the perfusion liner 30 for thrombolysis. After waiting for a period of time, the thrombus taking assembly is withdrawn, and when the basket body 110 passes through the thrombus section in the withdrawing process, the thrombus is captured into the basket body 110 under the guiding action of the thrombus guiding net 111 and is removed out of the body along with the withdrawing of the thrombus taking assembly. If the condition of the patient is critical, in order to shorten the opening time, the doctor can judge the condition by experience, does not need to dissolve the thrombus by medicines first, and carries out mechanical thrombus removal by directly withdrawing the thrombus removal assembly, thereby achieving the corresponding treatment effect.
The thrombus clearing device of this embodiment can carry out the medicine simultaneously and dissolve the thrombus and mechanically get the thrombus, consequently, can clear away iliac vein thrombus high-efficiently or make it shift out the external with the thrombus breakage to alleviate iliac vein vascular obstruction, improve iliac vein backward flow obstacle, avoid arousing lethal vascular disease in acute cardiopulmonary dysfunction, myocardial infarction, the cerebral apoplexy, and the wound is little, easily resume and be difficult for producing other complications.
Although only the use of the embolectomy assembly with a retrieval sheath assembly and an infusion assembly is described herein, it should be understood that the embolectomy assemblies disclosed in the embodiments of the present application may also be used with other suitable iliac vein embolic thrombectomy devices.
It will be understood by those skilled in the art that the foregoing embodiments are specific examples of the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in its practical application.
Claims (10)
1. An embolectomy assembly for iliac vein embolic thrombectomy, comprising:
the thrombus isolation filter screen and the thrombus capture basket can elastically expand in the radial direction and are coaxially arranged;
the thrombus isolation filter screen and the thrombus capture net basket are fixedly connected.
2. The embolectomy assembly of claim 1 wherein the thrombus capture basket comprises: the basket comprises a basket body and a guide bolt net with openings at two ends; the basket bottom of the basket body is close to the thrombus isolation filter screen, and the open end of the basket body is connected with the inner end of the thrombus guide screen.
3. The embolectomy assembly of claim 2 wherein the thrombus isolation filter screen is ellipsoidal and the basket body is tubular.
4. The embolectomy assembly of claim 3 wherein the outer end opening of the embolic mesh is a beveled opening.
5. The embolectomy assembly of claim 2 wherein the thrombus isolation filter screen and the basket body are woven from resilient metal wire; the bolt guiding net is formed by laser engraving.
6. The embolectomy assembly of claim 1 wherein the mesh openings of the thrombus isolation screen are diamond-shaped.
7. A thrombectomy device for iliac vein embolization, comprising: recovering a sheath assembly and the embolectomy assembly of any of claims 1-6;
the recovery sheath assembly includes: a recovery sheath and a recovery sheath base; the inner end of the recovery sheath tube is connected with the inner end of the recovery sheath tube seat;
the filter screen is kept apart to the thrombus and the thrombus is caught the basket and all accomodates in retrieve the sheath intraductally, just the filter screen is kept apart to the thrombus is close to retrieve the outer end of sheath pipe.
8. A thrombectomy device according to claim 7, wherein said thrombectomy device further comprises: a perfusion assembly;
the perfusion assembly comprises: a perfusion liner tube and a perfusion tube seat;
the inner end of the perfusion liner tube is connected with the bolt taking assembly, the outer end of the perfusion liner tube is connected with the perfusion tube seat, and the side surface of the perfusion tube seat is provided with a medicine injection joint;
the outer end of the recovery sheath tube seat is provided with a flexible sealing valve, the perfusion liner tube is arranged in the recovery sheath tube, the outer end of the perfusion liner tube penetrates through the recovery sheath tube seat, and the flexible sealing valve is in sealing fit with the perfusion liner tube.
9. The thrombectomy device according to claim 8, wherein said retrieval sheath and said infusion liner are provided with visualization markers at their outer ends.
10. The thrombus removal device for iliac vein embolism according to claim 8, wherein a plurality of diversion grooves are arranged between two ends of the perfusion liner tube and are parallel to the axis and distributed along the circumference, and a plurality of micropores communicated with the diversion grooves are arranged on the outer side surface of the front end of the perfusion liner tube.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020677733.XU CN213310106U (en) | 2020-04-28 | 2020-04-28 | A get and tie up subassembly and thrombus clearing device for iliac vein embolism thrombus clearance |
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| CN202020677733.XU CN213310106U (en) | 2020-04-28 | 2020-04-28 | A get and tie up subassembly and thrombus clearing device for iliac vein embolism thrombus clearance |
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| CN213310106U true CN213310106U (en) | 2021-06-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023087475A1 (en) * | 2021-11-17 | 2023-05-25 | 上海腾复医疗科技有限公司 | Thrombectomy device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023087475A1 (en) * | 2021-11-17 | 2023-05-25 | 上海腾复医疗科技有限公司 | Thrombectomy device |
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Effective date of registration: 20220712 Address after: 518000 1517, building 10, Biomedical Innovation Industrial Park, No. 14, Jinhui Road, Jinsha community, Kengzi street, Pingshan District, Shenzhen City, Guangdong Province Patentee after: Shenzhen tengfu Medical Technology Co.,Ltd. Address before: Room 302-2, building 1, No. 158, Xinjun Ring Road, Minhang District, Shanghai, 201114 Patentee before: Shanghai tengfu Medical Technology Co.,Ltd. |
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