CN114469260A

CN114469260A - Suction-matched embolectomy support and embolectomy system with same

Info

Publication number: CN114469260A
Application number: CN202210041611.5A
Authority: CN
Inventors: 孙剑; 吕纬岩; 吕学良; 李彬彬; 李开楠
Original assignee: Beijing Jiushi Shenkang Medical Technology Co ltd
Current assignee: Beijing Jiushi Shenkang Medical Technology Co ltd
Priority date: 2022-01-14
Filing date: 2022-01-14
Publication date: 2022-05-13

Abstract

The invention discloses a suction-matched bolt taking support and a bolt taking system with the same. The thrombus taking bracket matched with suction can capture fallen thrombus and avoid causing re-embolism in blood vessels.

Description

Suction-matched embolectomy support and embolectomy system with same

Technical Field

The invention relates to the technical field of vascular interventional medical treatment, in particular to a thrombus removal bracket matched with suction and a thrombus removal system.

Background

The thrombus taking support matched with suction is a medical instrument for grabbing thrombus in blood vessels, the operation process is that the thrombus taking support matched with self-expansion suction is installed in an outer sheath tube in advance, when the thrombus taking support matched with suction is used, the distal end of the outer sheath tube is butted with the near end of a micro catheter, the thrombus taking support matched with suction is pushed into the micro catheter through certain acting force and then is conveyed to an embolism position, the support is released, thrombus is grabbed through the radial force expanded by self-expansion, and then the thrombus is taken out of a body after being recovered through the catheter. However, the thrombus is easy to shift and break during thrombus extraction, and adjacent branches of the occluded blood vessel or secondary branches of the blood vessel are subjected to embolism, namely new site embolism caused by thrombus escape.

Disclosure of Invention

The present invention is based on the discovery and recognition by the inventors of the following facts and problems:

the prior art discloses an integrated suction-matched thrombus removal stent, wherein protectors are provided at the near end and the far end of a thrombus removal device, so that thrombus clots falling off from the suction-matched thrombus removal stent are prevented from entering a branch blood vessel at the far end to cause thrombus in the blood vessel again. However, the suction-fitted thrombus removal stent in the related art needs to be embedded in the thrombus, and therefore, breakage of the thrombus still tends to occur during the process of pulling the thrombus.

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the embodiment of the invention provides a thrombus extraction bracket matched with suction, which can capture fallen thrombus and avoid causing re-embolism in a blood vessel.

The embodiment of the invention also provides a thrombus removal system.

According to the embodiment of the invention, the thrombus removal support matched with suction comprises: a first pipe body; the traction wire is arranged in the first pipe body in a penetrating mode; a protective member, which is sleeved on the traction wire, one end of which is connected with the first tube body, and the other end of which is connected with the traction wire, wherein the protective member can be expanded or contracted in the length direction of the first tube body so as to capture thrombus; the thrombus taking component is connected with the first pipe body, arranged at intervals in the length direction of the first pipe body and used for grabbing thrombus; the locking valve is connected with the first pipe body and used for fixing the position of the traction wire in the first pipe body.

According to the thrombus extraction bracket matched with suction provided by the embodiment of the invention, the thrombus escaping in the thrombus process is prevented from blocking the blood vessel to cause secondary embolism.

In some embodiments, the suction-assisted embolectomy holder further comprises a second tube spaced apart from the first tube and movable in a direction along the length of the first tube away from or toward the first tube, the second tube is sleeved on the pull wire, and an end of the protective member away from the first tube is connected to the second tube.

In some embodiments, the protection member includes a first connection portion, a second connection portion, and a main body portion, the main body portion is disposed between the first connection portion and the second connection portion, the first connection portion is connected to the first pipe, and the second connection portion is connected to the second pipe.

In some embodiments, the body portion is a mesh structure.

In some embodiments, the main body portion is a mesh structure woven from at least one of a plurality of metal wires, polymeric fibers, and hydrogel fiber materials, and developing wires.

In some embodiments, the plug removing component is a brush, and the brush is arranged on the periphery of the first tube body.

In some embodiments, the plug removing component is a spring, one end of the spring is connected with the first connecting part, and the other end of the spring is connected with the first tube.

In some embodiments, the spring is a reducing spring.

In some embodiments, the suction-mated embolectomy support further comprises a first developer ring disposed on the second tubular body at a junction of the protective member and the second tubular body.

The thrombus removal system according to the embodiment of the invention comprises: a suction-matched embolectomy support, which is the suction-matched embolectomy support of any one of the above embodiments; the suction catheter, the suction catheter cover is established on the thrombectomy support of cooperation suction, just in the one end of image tube stretches into the blood vessel, the other end of suction catheter is suitable for and links to each other with suction component, the second is developed and is encircled and is established so that observe on the suction catheter is in the position of blood vessel.

According to the thrombus taking system provided by the embodiment of the invention, the dragging distance of thrombus in the thrombus taking process can be shortened, the thrombus taking efficiency is improved, and the risk of thrombus rupture in the thrombus taking process can be reduced.

The suction-matched embolectomy support provided by the embodiment of the invention has at least the following beneficial effects:

1. through setting up the protection part, can catch the thrombus that drops, avoid causing endovascular embolism again, the protection part can extend or contract in left and right direction so that open or contract the protection part in the blood vessel under the drive of traction wire, can pass in the little pipe of 0.017 inch.

2. The size of the opening of the protection component can be adjusted according to the diameter of the blood vessel, so that the protection component is prevented from damaging the blood vessel, the safety in the thrombus taking process is improved, the protection component can filter thrombus and simultaneously keep the normal flow of blood, and the state of blood vessel ischemia is effectively relieved.

3. Through setting up the brush that can develop, can judge the condition of the removal of thrombus at the in-process of getting the bolt to obtain thrombus real-time information, improve the security and the validity of getting the bolt.

Drawings

FIG. 1 is a schematic diagram of a suction-coupled embolectomy holder of an embodiment of the present invention.

FIG. 2 is a schematic view of the suction-mated embolectomy stent of FIG. 1 with the protective member deployed.

FIG. 3 is a schematic diagram of a suction-coupled embolectomy holder according to yet another embodiment of the present invention.

FIG. 4 is a schematic diagram of a suction-coupled embolectomy holder according to yet another embodiment of the present invention.

FIG. 5 is an operational schematic view of a suction-assisted thrombectomy stent according to an embodiment of the present invention, wherein a micro-guidewire is passed through the thrombus.

FIG. 6 is an operational schematic of a suction-mated thrombectomy stent of an embodiment of the present invention, wherein the micro-guidewire is withdrawn and the micro-catheter is passed through the thrombus.

FIG. 7 is an operational illustration of an aspiration-mated thrombectomy stent of an embodiment of the invention, wherein the microcatheter is withdrawn and the thrombectomy stent is engaged in the aspiration to capture thrombi.

FIG. 8 is an operational illustration of an aspiration-coupled thrombectomy stent of an embodiment of the present invention, wherein thrombus has been aspirated.

Reference numerals:

the first tube 101, the second tube 102,

the drawing wire 2 is arranged on the front end of the frame,

a protective member 3, a first connecting portion 301, a second connecting portion 302, a main body portion 303,

the latch member 4, the brush 41, the spring 42,

a locking valve 5, a first imaging ring 6, a second imaging ring 7, a micro-guide wire 8, a micro-catheter 9 and an aspiration catheter 10.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

The suction-matched embolectomy stent according to the embodiment of the invention comprises a first tube 101, a pull wire 2, a protective member 3 and an embolectomy member 4.

The pull wire 2 is disposed within the first tube 101.

The material of the traction wire 2 is a metal material.

The protection component 3 is sleeved on the traction wire 2, one end of the protection component 3 is connected with the first pipe body 101, and the other end of the protection component 3 is connected with the traction wire 2. The protective member 3 can be extended or contracted in the longitudinal direction of the first tube 101 so as to capture the thrombus.

The protective member 3 has a self-expanding tubular structure.

Specifically, as shown in fig. 1, the right end of the protective member 3 is connected to the left end of the first tube 101, and the left end of the protective member 3 is connected to the traction wire 2. Here, the protection member 3 and the first tube 101 may be connected by welding, bonding, or the like, and the protection member 3 and the pull wire 2 may be connected by welding, bonding, or the like.

The thrombus capturing component 4 is used for capturing thrombus, the thrombus capturing component 4 is connected with the first tube 101, and the thrombus capturing component 4 and the protective component 3 are arranged at intervals in the length direction of the first tube.

Specifically, as shown in fig. 1, the plug removing member 4 and the protective member 3 are arranged at a distance in the left-right direction, and the plug removing member 4 is connected to the first pipe 101. The right end of the first pipe 101 is the end close to the operator, and the left end of the first pipe 101 is the end away from the operator.

According to the thrombus extraction support matched with suction provided by the embodiment of the invention, the dropped thrombus can be captured by arranging the protection component 3, so that the thrombus in a blood vessel is prevented from being embolized again, and the protection component 3 can be extended or contracted in the left and right direction under the driving of the traction wire 2 so as to expand or contract the protection component in the blood vessel.

In some embodiments, the suction-compatible embolectomy holder further includes a second tubular body 102, the first tubular body 101 and the second tubular body 102 being spaced apart, and the second tubular body 102 being distal or proximal to the first tubular body 101.

It should be noted that the first tube 101 and the second tube 102 are both cylindrical, the diameters of the first tube 101 and the second tube 102 are the same, the inner diameters of the first tube 101 and the second tube 102 are the same, and the diameters of the first tube 101 and the second tube 102 are ensured to be able to pass through the microcatheter 9. The length of the first tube 101 is less than the length of the second tube 102. Specifically, the diameters of the first tube 101 and the second tube 102 can both pass through the microcatheter 9 of 0.017 inch, so that the embolectomy stent can pass through the microcatheter of 0.017 inch, and the length of the first tube 101 is greater than 1600mm and the length of the second tube 102 is less than 200 mm.

Specifically, as shown in fig. 3, the second pipe 102 is movable in the left-right direction to make the second pipe 102 close to or away from the first pipe 101.

As shown in fig. 3, the pull wire 2 is coaxially arranged with the first tube 101 and the second tube 102, and the left end of the pull wire 2 is connected with the second tube 102, so that the external size of the thrombus extraction stent matched with suction can be reduced, and the passability of the thrombus extraction stent matched with suction in the microcatheter 9 can be improved. In some embodiments, the protection member 3 includes a first connection portion 301, a second connection portion 302, and a main body portion 303, the main body portion 303 is disposed between the first connection portion 301 and the second connection portion 302, and the first connection portion 301 is connected to the first tube 101, and the second connection portion 302 is connected to the second tube 102.

Specifically, as shown in fig. 3, the left end of the first connection portion 301 is connected to the right end of the first pipe 101, the left end of the main body portion 303 is connected to the right end of the first connection portion 301, and the right end of the main body portion 303 is connected to the left end of the second connection portion 302.

The first connection portion 301, the second connection portion 302, and the main body portion 303 are integrally formed.

The thrombus extraction stent with suction matching according to the embodiment of the present invention can connect the protective member 3 to the first tube 101 and the second tube 102 more stably by providing the first connection portion 301 and the second connection portion 302, and can capture thrombus by the main body portion 303.

In some embodiments, the body portion 303 is a mesh structure.

It should be noted that the body portion 303 can capture debris smaller than 40 microns while maintaining blood circulation.

Specifically, as shown in fig. 1 and 2, when the main body 303 is not expanded, the outer contour of the longitudinal section of the main body 303 is substantially rectangular, and when the main body 303 is expanded, the outer contour of the longitudinal section of the main body 303 is substantially elliptical, and the main body 303 can be further compressed into a round cake shape. And as the distance between the first pipe 101 and the second pipe 102 gradually decreases, the size of the ellipse formed by the outer contour of the longitudinal section of the main body 303 in the left-right direction gradually decreases and the size of the ellipse formed by the outer contour of the longitudinal section of the main body 303 in the up-down direction gradually increases, when the distance between the first pipe 101 and the second pipe 102 gradually increases, the size of the ellipse formed by the outer contour of the longitudinal section of the main body 303 in the left-right direction gradually increases and the size of the ellipse formed by the outer contour of the longitudinal section of the main body 303 in the up-down direction gradually decreases, and when the distance between the first pipe 101 and the second pipe 102 returns to the original position, the outer contour of the longitudinal section of the main body 303 returns to the rectangular shape.

The thrombus taking bracket matched with suction provided by the embodiment of the invention can adjust the opening size of the protection component 3 according to the diameter of a blood vessel, so that the protection component 3 is prevented from damaging the blood vessel, the safety in the thrombus taking process is improved, the protection component 3 can maintain the normal flow of blood while filtering thrombus, and the state of blood vessel ischemia is effectively relieved.

In some embodiments, the mesh openings of the grid cells of the main body portion 303 gradually increase from left to right, so that the fallen thrombus can be captured.

In some embodiments, the main body 303 is a mesh structure woven from at least one of a plurality of wires, polymer fibers, and hydrogel fibers, and developing filaments.

The main body 303 is formed by weaving a plurality of nitinol wires or polymer hydrogel fibers, and it is understood that the main body 303 may also be formed by weaving hundreds of nitinol wires or polymer fibers smaller than 100 micrometers, hydrogel fibers, and at least three platinum-iridium alloy or platinum-tungsten alloy developer wires.

The hydrogel fibers can avoid damaging the intima of the blood vessel, and it should be noted that a plurality of developing filaments can be arranged at intervals in the circumferential direction of the first tube 101, so that the shape of the main body 303 can be displayed in the process of removing the thrombus, and an operator can conveniently judge the expansion degree of the protection component 3.

In some embodiments, the latch member 4 is a brush 41, and the brush 41 is disposed on the outer periphery of the second tube 102.

The brush 41 is made up of a plurality of soft and fine developable fibers, which are wound around the outer periphery of the second pipe body 1. The brush 41 and the second pipe 1 may be connected by bonding or welding.

The developable fiber can be nylon added with BaSO₄The developer is modified, or the inner core of the wire is nickel-titanium wire of developing material such as tantalum, platinum, etc.

According to the thrombus taking support matched with suction, the brush 41 capable of being developed is arranged, so that the moving condition of thrombus can be judged in the thrombus taking process, thrombus real-time information can be obtained, and the safety and effectiveness of thrombus taking are improved.

In some embodiments, the latch member 4 is a spring 42, one end of the spring 42 is connected to the first connecting portion 301, and the other end of the spring 42 is connected to the first tube 101.

It should be noted that the material of the spring 42 is metal, and specifically, the material of the spring 42 is stainless steel or nitinol.

Specifically, as shown in fig. 3, the left end of the spring 42 is connected to the first connection portion 301, and the right end of the spring 42 is connected to the left end of the first pipe 101.

In some embodiments, the spring 42 is a reducing spring 42.

Specifically, as shown in fig. 3, the spring 42 is a pitch-variable spring 42, that is, the pitch of the spring 42 changes with the change in diameter, and the diameter increases, the pitch increases, the diameter decreases, and the pitch decreases.

The longitudinal section of the spring 42 is waved and curved, and the spring 42 at least has 3-5 wave peak sections, namely 3-5 parts with enlarged diameters, two adjacent wave peaks are connected through a wave trough section, and the diameter of the wave trough section is smaller than that of the wave peak section.

It should be noted that the peak sections and the trough sections are integrally formed, so that the overall strength of the spring 42 is improved, and the spring 42 is prevented from being broken in the bolt removing process.

According to the thrombus taking support matched with suction, the spring 42 is set to be the variable-pitch variable-diameter spring 42, the spring 42 is provided with a plurality of wave peak sections and wave trough sections, the pitch of screws in the wave peak sections is large, so that more thrombus is embedded into the spring, the contact area between the spring and the thrombus is increased, the thrombus is easy to take out, the thrombus is kept relatively complete, thrombus fragments are prevented from entering a far end or a normal blood vessel, and the thrombus can be quickly taken out and the stability of the thrombus taking is enhanced; can prevent the stent from damaging thrombus when being unfolded and released, thereby being applied to blood vessels with thinner pipe diameters at the far end.

In some embodiments, the suction-compatible embolectomy stent further comprises a locking valve 5, the locking valve 5 being connected to the first tubular body 101, the locking valve 5 being configured to fix the position of the pull wire 2 within the first tubular body 101.

Specifically, as shown in fig. 1, the locking valve 5 is disposed at the right end of the first tube 101, and it should be noted that the locking valve 5 is an existing device, and therefore the detailed structure of the locking valve 5 is not described herein. The locking valve 5 is used to fix the position of the pull wire 2 in the first tube 101, that is, the pull wire 2 can move in the first tube 101 when the locking valve 5 is opened, and the pull wire 2 cannot move in the first tube 101 when the locking valve 5 is closed.

According to the suction-matched bolt taking bracket provided by the embodiment of the invention, the shapes of the protection component 3 and the bolt taking component 4 can be kept by arranging the locking valve 5, so that the safety and the stability in the bolt taking process are ensured.

In some embodiments, the suction-compatible embolectomy stent further comprises a first visualization ring 6, wherein the first visualization ring 6 is disposed on the second tubular body 102, and the first visualization ring 6 is disposed at the connection of the protective member 3 and the second tubular body 102.

Specifically, as shown in fig. 1, the first developing ring 6 is disposed at the joint of the first connecting portion 301 and the second pipe 102, and the material of the first developing ring 6 may be platinum iridium, platinum tungsten or tantalum.

According to the thrombus removal bracket matched with suction, the position of the second pipe body 102 can be judged by arranging the first imaging ring 6, so that the second pipe body 102 and the protective component 3 can penetrate thrombus in the thrombus removal process, the first imaging ring 6 is arranged at the connecting position of the second pipe body 102 and the protective component 3, the connecting effect of the second pipe body 102 and the protective component 3 can be enhanced, and the second connecting part 301 and the second pipe body 102 are prevented from being separated.

The principle of operation of a suction-matched embolectomy holder of an embodiment of the present invention is described below with reference to fig. 1-8.

The method comprises the steps of penetrating a micro guide wire 8 into a blood vessel, penetrating the micro guide wire 8 through thrombus, then penetrating a micro catheter 9 into the blood vessel along the extending direction of the micro guide wire 8, removing the micro guide wire 8 after the micro catheter 9 penetrates through the thrombus, wherein the interior of the micro catheter 9 is hollow, then penetrating a thrombus taking support matched with suction into the micro catheter 9 along the extending direction of the micro catheter 9, and it should be noted that in the process that the thrombus taking support matched with suction is pushed into the micro catheter 9, the locking valve 5 is in a closed state.

Observe the position of first visualization ring 6 through the radiography equipment, when protection part 3 passes the thrombus and get and tie part 4 and be located the thrombus, remove micro-catheter 9, it does not have under the constraint of micro-catheter 9 to get to tie part 4 this moment, brush 41 or spring 42 embedding have realized snatching the thrombus in the thrombus, loosen locking valve 5 afterwards, pulling pull wire 2, second body 102 removes and drives protection part 3 inflation to first body 101, can observe the inflation degree of protection part 3 through the radiography equipment, fix the relocking after the inflation degree, pull first body 101 afterwards, bring the thrombus out of the blood vessel.

It should be noted that, after the brush 41 is embedded into the thrombus, a part of the brush embedded into the thrombus falls down, while the brush not embedded into the thrombus does not fall down, when the thrombus is dragged, if the thrombus moves, the position of the thrombus can be judged by judging the falling condition of the brush, so that an operator can observe the position and the state of the thrombus more visually, and the effectiveness of thrombus extraction is improved.

The embolectomy system comprises an embolectomy bracket matched with suction, a suction catheter and a second developing ring.

The suction-matched embolectomy support is the suction-matched embolectomy support of any of the embodiments described above.

The suction catheter 10 is sleeved on the thrombus taking support matched with suction, one end of the suction catheter 10 extends into the blood vessel, and the other end of the suction catheter 10 is suitable for being connected with a suction part.

A second visualization ring 7 is provided on the aspiration catheter 10 to visualize the position of the aspiration catheter 10 within the blood vessel.

Specifically, as shown in fig. 7, the second imaging ring 7 is provided at the end of the suction catheter 10 that extends into the blood vessel.

According to the thrombus taking system provided by the embodiment of the invention, the thrombus can be stably grabbed by arranging the thrombus taking support matched with suction, the thrombus is dragged to the suction catheter 10 by the thrombus taking support matched with suction, and the thrombus is sucked out of the blood vessel by the suction catheter 10, so that the thrombus is not dragged out of the blood vessel by the thrombus taking support matched with suction, the dragging distance of the thrombus in the blood vessel is further shortened, thrombus rupture in the thrombus taking process is avoided, and re-embolism in the blood vessel is avoided.

The operation of the embolectomy system of an embodiment of the present invention is described below with reference to fig. 1-8.

The method comprises the steps of extending an aspiration catheter 10 into a blood vessel, penetrating a micro guide wire 8 through the aspiration catheter 10 and penetrating the micro guide wire 8 into the blood vessel, then penetrating a micro catheter 9 into the blood vessel along the extending direction of the micro guide wire 8 after the micro guide wire 8 penetrates a thrombus, removing the micro guide wire 8 after the micro catheter 9 penetrates the thrombus, wherein the interior of the micro catheter 9 is hollow, then penetrating a thrombus extraction support matched with aspiration into the micro catheter 9 along the extending direction of the micro catheter 9, and it should be noted that in the process of pushing the thrombus extraction support matched with aspiration into the micro catheter 9, a locking valve 5 is in a closed state. Observe first visualization ring 6 position through the radiography equipment, when protection part 3 passes the thrombus and get bolt part 4 and be located the thrombus, remove micro catheter 9, get bolt part 4 this moment under the constraint that does not have micro catheter 9, brush 41 or spring 42 embedding have realized snatching the thrombus in the thrombus, loosen locking valve 5 afterwards, pulling traction wire 2, second body 102 removes and drives protection part 3 inflation to first body 101, can observe the inflation degree of protection part 3 through the radiography equipment, pull first body 101 afterwards, drag the thrombus to the one end that suction catheter 10 stretched into the blood vessel, start the suction simultaneously and aspirate the thrombus.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A suction-compatible embolectomy support, comprising:

a first pipe body;

the traction wire is arranged in the first pipe body in a penetrating mode;

a protective member, which is sleeved on the traction wire, one end of which is connected with the first tube body, and the other end of which is connected with the traction wire, wherein the protective member can be expanded or contracted in the length direction of the first tube body so as to capture thrombus;

the thrombus taking component is connected with the first pipe body, arranged at intervals in the length direction of the first pipe body and used for grabbing thrombus;

a locking valve coupled to the first tube, the locking valve configured to fix a position of the pull wire within the first tube.

2. The suction-assisted embolectomy support of claim 1, further comprising a second tube spaced apart from the first tube and movable in a direction along the length of the first tube away from or toward the first tube, the second tube being sleeved on the pull wire, and an end of the protective member distal from the first tube being connected to the second tube.

3. The suction-matched embolectomy support of claim 2, wherein the protective member comprises a first connecting portion, a second connecting portion and a main body portion, the main body portion is arranged between the first connecting portion and the second connecting portion, the first connecting portion is connected with the first tube, and the second connecting portion is connected with the second tube.

4. The suction-compatible embolectomy support of claim 3, wherein the body portion is a mesh structure.

5. The suction-compatible embolectomy stent of claim 4, wherein the main body portion is a mesh structure woven from at least one of a plurality of metal wires, polymeric fibers, and hydrogel fiber materials with developing wires.

6. The suction-compatible embolectomy support of claim 2, wherein the embolectomy device is a brush disposed around the circumference of the first tube.

7. The suction-compatible embolectomy support of claim 2, wherein the embolectomy member is a spring, one end of the spring is connected to the first connector, and the other end of the spring is connected to the first tube.

8. The suction-matched embolectomy support of claim 7, wherein the spring is a variable diameter spring.

9. The suction-compatible embolectomy support of claim 8, further comprising a first developer ring disposed on the second tubular body, wherein the first developer ring is disposed at a junction of the protective member and the second tubular body.

10. A thrombectomy system, comprising:

a suction-mated embolectomy support of any of claims 1-9;

the suction catheter is sleeved on the thrombus taking support matched with suction, one end of the image suction tube extends into the blood vessel, and the other end of the suction catheter is suitable for being connected with a suction part;

a second visualization ring disposed on the aspiration catheter for viewing the position of the aspiration catheter within the blood vessel.