Structure for removing thrombus in blood vessel

Abstract

The invention relates to the technical field of heart and blood vessels, and discloses an intravascular thrombus removing structure which comprises a thrombus buckling and detaching head, a hose is installed at the connecting pipe end of the thrombus buckling and detaching head in an interference mode, and the air suction end of a vacuum pump is fixedly installed at the end, away from the thrombus buckling and detaching head, of the hose; the thrombus buckling and detaching head comprises an inner tube, four negative pressure communicating openings are formed in the outer wall face of the inner tube at equal intervals, a table hanging tube is fixedly arranged at one end of the inner tube, and an outer sleeve is connected to the portion, located on one side of the table hanging tube, of the outer wall face of the inner tube in a sleeved mode. According to the intravascular thrombus removing structure, under the guiding effect of the guiding cavity, the memory metal rod penetrates through the end of the guiding cavity to be guided and bent, the memory metal rod protrudes like a claw and buckles thrombus, a little thrombus fragment is buckled from the large thrombus, the thrombus is continuously grabbed and broken through the memory metal rod, and the thrombus is removed. And the thrombus is buckled from the large thrombus bit by bit.

Description

Technical Field

[0001] The invention relates to the field of cardiovascular technology, in particular to an intravascular thrombus removal structure. Background Art

[0002] Thrombi are small pieces of blood formed on the surface of the lining of the cardiovascular system vessels, where they are peeled off or repaired. In the variable fluid-dependent type, thrombi are composed of insoluble fibrin, deposited platelets, accumulated white blood cells and trapped red blood cells.

[0003] Thrombosis is a multifactorial process in which a group of genetic and environmental factors interact and influence each other. The main characteristics of common thrombosis patients in clinical practice are familial inheritance, recurrent attacks, severe symptoms, abnormal thrombosis site, and young onset.

[0004] With regard to the existing related technologies, the inventors believe that the following defects often exist: when treating thrombus, one method is to use drug dissolution to treat thrombus. The drug solvent snow frost can only treat thrombus of smaller size. Some thrombus are very large and thick, and cannot be dissolved by drugs. At this time, another treatment method, vascular bypass, is generally used. However, when vascular bypass is used, the blood vessel is stretched and the thrombus will move to other places and block other positions. Both methods have limitations and are not effective.

[0005] To this end, we propose an intravascular thrombus removal structure. Summary of the invention

[0006] The object of the present invention is to provide a structure for removing blood clots in a blood vessel to solve the problems mentioned in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions: A structure for removing thrombus in a blood vessel comprises: a thrombus removal head, a hose is installed at the connecting pipe end of the thrombus removal head, and a suction end of a vacuum pump is fixedly installed at one end of the hose away from the thrombus removal head; The thrombus removal head comprises an inner tube, the outer wall surface of the inner tube is provided with four negative pressure communication ports at equal intervals, a hanging tube is fixedly arranged at one end of the inner tube, an outer sleeve is sleeved on the outer wall surface of the inner tube and located on one side of the hanging tube, and a removal assembly for removing the thrombus is fixedly installed on the outer wall surface of the inner tube and located between the outer wall surface of the inner tube and the inner wall surface of the outer sleeve; The buckle assembly includes four buckle bodies combined into a ring, a movable collar plate is slidably installed between the four buckle bodies, a plug ring plate is detachably connected to the side of the movable collar plate away from the buckle body, and four cavities are formed between the movable collar plate and the plug ring plate, and a sealing block is arranged inside each cavity.

[0008] As an improved technical solution, the four sides of the outer wall of the inner tube are provided with a limiting groove 1 connected to the negative pressure connecting port, the outer wall of the inner tube is fixedly installed with a convex ring at one end close to the hanging tube, the four sides of the outer wall of the convex ring and the four sides of the inner wall are fixedly installed with a limiting strip 1, the inner wall of the outer sleeve is provided with four limiting grooves 2 on one side close to the convex ring, and the limiting strip 1 on the upper side of the convex ring enters into the interior of the limiting groove 2.

[0009] As an improved technical solution, the buckling body includes an annular block installed on the inner tube, and the annular block has reset parts fixedly installed on both sides of one end surface of the movable ring plate, and the annular block has a buckling part fixedly installed in the middle of one end surface of the movable ring plate.

[0010] As an improved technical solution, a limiting strip 2 is fixedly installed in the middle of the inner wall and the outer wall of the annular block, the limiting strip 2 on the upper side is located inside the limiting groove 2, and the limiting strip 2 on the lower side is located inside the limiting groove 1.

[0011] As an improved technical solution, the buckle includes a positioning rod and a guide block fixed to an end face of the annular block close to a movable sleeve plate. A positioning hole is provided at the center of a circle of one end of the positioning rod away from the annular block. A memory metal rod is movably arranged inside the positioning hole, and the head end of the memory metal rod is passivated. A guide cavity is provided on one side of the guide block for the memory metal rod to pass through, and the memory metal rod is bent toward the middle after being guided by the guide cavity.

[0012] As an improved technical solution, a locking groove is provided at one end of the positioning rod close to the positioning hole, a locking block is fixedly installed inside the locking groove, an interference hole 1 is provided on the side of the locking block away from the positioning rod, and the inside of the interference hole 1 is interference-connected to the interference rod 1.

[0013] As an improved technical solution, the reset member includes a long rod and a circular block fixed to the end face of the annular block close to the movable collar plate, a magnet block 1 is fixedly installed on one end of the long rod close to the circular block, a magnet block 2 is fixedly installed on one end of the circular block close to the long rod, and the opposite ends of magnet block 2 and magnet block 1 are in a magnetic repulsion state.

[0014] As an improved technical solution, the sealed block is arc-shaped, a guide hole 1 for the positioning rod to pass through is formed at the middle end of the sealed block, and guide holes 2 for the long rod to pass through are formed at both side ends of the sealed block.

[0015] As an improved technical solution, four partition plates 1 are fixedly installed at equal intervals on one side of the movable ring plate close to the plugging ring plate, four partition plates 2 are fixedly installed at equal intervals on one side of the plugging ring plate close to the movable ring plate, a sliding hole 1 is opened on one side of the movable ring plate and located between two adjacent partition plates 1, a sliding hole 2 is opened on one side of the movable ring plate and located on both sides of the movable ring plate, a fixing groove is opened on one side of the plugging ring plate and located between two adjacent partition plates 2, and a fixing hole is opened on one side of the plugging ring plate and located on both sides of the fixing groove.

[0016] As an improved technical solution, an interference hole 2 is opened on the side of the partition one close to the partition two, and an interference rod 2 is welded and fixedly installed on the side of the partition two close to the partition one, and the interference rod 2 is inserted into the interior of the interference hole 2. At the same time, the interference rod 2 is interference-connected with the interference hole 2.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention, under the guidance of the guide cavity, passes the end of the guide cavity for guiding and bending, so that the memory metal rod protrudes like a claw and grabs the thrombus, and a little bit of thrombus fragments are buckled from the large thrombus. The thrombus is continuously grabbed and crushed by the memory metal rod, and the thrombus is buckled off from the large thrombus little by little. The mechanical method is used to replace the original drug and bypass treatment method, which is suitable for removing thrombus of any size, with high adaptability and good treatment effect.

[0018] 2. The present invention, when clearing thrombus, only the thrombus area near the middle is cleared, and the thrombus adhering to the blood vessel wall will not be cleared, but will still adhere to the blood vessel wall, leaving some thrombus on the blood vessel wall, which is beneficial to avoid damage to the blood vessel during clearing. The remaining thrombus is cleared by drugs, and the thrombus is crushed and cleared at the same time by four memory metal rods, thereby improving work efficiency.

[0019] 3. In the present invention, when the movable collar plate moves due to negative pressure, magnet block 2 will also move toward magnet block 1. When the cavity pressure is the same, the distance between magnet block 1 and magnet block 2 is also relatively close. Under the continuous repulsive effect between magnet block 2 and magnet block 1, the resetting of the relevant structure is accelerated, and the accuracy of the resetting of the relevant structure is also ensured.

[0020] 4. In the present invention, the interference rod is inserted into the interference hole and connected internally, which squeezes and expands the locking block, increases the friction between the locking block and the memory metal rod, and fixes the memory metal rod. Conversely, the memory metal rod can be disassembled, which is convenient for assembly and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of an intravascular thrombus removal structure; Figure 2 A schematic diagram of the structure of a thrombus removal head in an intravascular thrombus removal structure; Figure 3 A schematic diagram of the structure of an inner tube in an intravascular thrombus removal structure; Figure 4 It is a schematic diagram of the explosion structure of a thrombus buckle removal head in an intravascular thrombus removal structure; Figure 5 It is a structural schematic diagram of a detachable body in an intravascular thrombus removal structure; Figure 6 It is a structural schematic diagram of a movable collar plate and a plugging ring plate in an intravascular thrombus removal structure; Figure 7 It is a schematic diagram of the assembly structure of a detachable body in an intravascular thrombus removal structure; Figure 8 It is a schematic diagram of the explosion structure of a buckle removal part in an intravascular thrombus removal structure; Fig. 9 It is a schematic diagram of the local structure of a positioning rod in an intravascular thrombus removal structure; Fig.10 A schematic diagram of the structure of a resetting component in an intravascular thrombus removal structure; Fig.11 This is a schematic diagram of the structure of a closed block in an intravascular thrombus removal structure.

[0022] In the figure: 1. thrombus buckle head; 11. inner tube; 111. negative pressure communication port; 112. limiting groove 1; 12. buckle assembly; 121. buckle body; 1211. annular block; 1212. limiting strip 2; 1213. buckle piece; 12131. positioning rod; 12132. positioning hole; 12133. memory metal rod; 12134. guide block; 12135. guide cavity; 12136. locking groove; 12137. interference hole 1; 12138. interference rod 1; 12139. locking block; 1214. reset piece; 12141. long rod; 1 2142, magnet block one; 12143, round block; 12144, magnet block two; 122, movable sleeve ring plate; 1221, partition one; 1222, sliding hole one; 1223, sliding hole two; 1224, interference hole two; 123, plug ring plate; 1231, partition two; 1232, interference rod two; 1233, fixing groove; 1234, fixing hole; 124, sealing block; 1241, guide hole one; 1242, guide hole two; 13, outer sleeve; 131, limiting groove two; 14, hanging platform tube; 15, convex ring; 151, limiting strip one; 2, hose. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] See also Figures 1 to 11 The present invention proposes a technical solution, a structure for removing blood clots in a blood vessel, comprising: a thrombus removal head 1, a hose 2 is installed at the pipe end of the thrombus removal head 1, and a suction end of a vacuum pump is fixedly installed at one end of the hose 2 away from the thrombus removal head 1; The thrombus removal head 1 comprises an inner tube 11, the outer wall surface of the inner tube 11 is provided with four negative pressure communication ports 111 at equal intervals, a hanging tube 14 is fixedly provided at one end of the inner tube 11, an outer sleeve 13 is sleeved on the outer wall surface of the inner tube 11 and located on one side of the hanging tube 14, and a detachment assembly 12 for detaching thrombus is fixedly installed on the outer wall surface of the inner tube 11 and located between the outer wall surface of the inner tube 11 and the inner wall surface of the outer sleeve 13; The buckle assembly 12 includes four buckle bodies 121 combined into a ring, and a movable ring plate 122 is slidably installed between the four buckle bodies 121. A plug ring plate 123 is detachably connected to the side of the movable ring plate 122 away from the buckle body 121, and four cavities are formed between the movable ring plate 122 and the plug ring plate 123. At the same time, a sealing block 124 is arranged inside each cavity.

[0025] Under the guidance of the guide cavity 12135, the memory metal rod 12133 is passed through the end of the guide cavity 12135 for guidance and bending, so that the memory metal rod 12133 protrudes like a claw and grabs the thrombus, and a little bit of thrombus fragments are buckled from the large thrombus. Under the action of negative pressure, the thrombus fragments are discharged out of the body through the hose 2. When the movable collar plate 122 moves to the position of the negative pressure connecting port 111, the cavity pressure is the same, the negative pressure on the movable collar plate 122 fails, and the relevant structure is reset. Repeat the above operation, through the memory metal rod 12133 133 continuously grabs and crushes the thrombus, removes the thrombus little by little from the large thrombus, and uses mechanical methods to replace the original drug and bypass treatment methods. It is suitable for removing thrombus of any size, with high adaptability and good treatment effect. Moreover, when cleaning the thrombus, only the thrombus area in the middle is removed. The thrombus adhered to the blood vessel wall will not be removed, but will still adhere to the blood vessel wall, leaving some thrombus on the blood vessel wall, which is beneficial to avoid damage to the blood vessel during cleaning. The residual thrombus is cleaned by drugs.

[0026] The four sides of the outer wall of the inner tube 11 are all provided with limiting grooves 112 connected to the negative pressure connecting port 111, and a convex ring 15 is fixedly installed on the end of the outer wall of the inner tube 11 close to the hanging tube 14, and the hanging tube 14 is fixed on the convex ring 15, and the four sides of the outer wall of the convex ring 15 and the four sides of the inner wall are fixedly installed with limiting strips 151, and the limiting strip 151 is provided with four limiting grooves 2 131 on the side of the inner wall of the outer sleeve 13 inside the limiting groove 112 close to the convex ring 15, and the limiting strip 151 on the upper side of the convex ring 15 enters the interior of the limiting groove 2 131, and the upper limiting strip 151 enters the interior of the limiting groove 2 131 to ensure the alignment of the outer sleeve 13 during installation, and the lower limiting strip 151 enters the interior of the limiting groove 112, in order to facilitate the fixing of the convex ring 15 on the inner tube 11.

[0027] The buckle body 121 includes an annular block 1211 installed on the inner tube 11 , and reset members 1214 are fixedly installed on both sides of the annular block 1211 close to one end surface of the movable collar plate 122 , and a buckle member 1213 is fixedly installed in the middle of the annular block 1211 close to one end surface of the movable collar plate 122 .

[0028] A second limiting strip 1212 is fixedly installed in the middle of the inner wall and the outer wall of the annular block 1211. The second limiting strip 1212 on the upper side is located inside the second limiting groove 131, and the second limiting strip 1212 on the lower side is located inside the first limiting groove 112. The second limiting strip 1212 is installed inside the second limiting groove 131 to limit the annular block 1211 and ensure the accuracy of the installation position. The structure is installed by splicing multiple modules to reduce the difficulty of production.

[0029] The buckling piece 1213 includes a positioning rod 12131 and a guide block 12134 fixed to an end face of the annular block 1211 close to the movable collar plate 122, and the positioning rod 12131 passes through the interior of the movable collar plate 122, and the guide block 12134 is fixed to the inner part of the fixing groove 1233. A positioning hole 12132 is provided at the center of one end of the positioning rod 12131 away from the annular block 1211, and a memory metal rod 12133 is movably provided inside the positioning hole 12132, and the head end of the memory metal rod 12133 is passivated to avoid damaging the blood vessel, and a guide cavity 12135 is penetrated on one side of the guide block 12134 for the memory metal rod 12133 to pass through, and the memory metal rod 12133 is guided by the guide cavity 12135 and then bent toward the middle, and the thrombus is simultaneously broken and removed by four memory metal rods 12133, thereby improving work efficiency.

[0030] A locking groove 12136 is provided at one end of the positioning rod 12131 close to the positioning hole 12132, and the locking groove 12136 is communicated with the interior of the positioning hole 12132 and is located below the positioning hole 12132. A locking block 12139 is fixedly installed inside the locking groove 12136. An interference hole 12137 is provided on the side of the locking block 12139 away from the positioning rod 12131. The interior of the interference hole 12137 is interference-connected to the interference rod 12138. The interference rod 12138 is inserted into the interference hole 12137 for interference connection, thereby squeezing and expanding the locking block 12139 to increase the friction between the locking block 12139 and the memory metal rod 12133 and fix the memory metal rod 12133. Otherwise, the memory metal rod 12133 can be disassembled for easy assembly and disassembly.

[0031] The reset member 1214 includes a long rod 12141 and a circular block 12143 fixed to the end surface of the annular block 1211 near the movable collar plate 122, and the circular block 12143 is fixed to the inner portion of the fixing hole 1234. A magnet block 12142 is fixedly installed on one end of the long rod 12141 near the circular block 12143, and a magnet block 2 12144 is fixedly installed on one end of the circular block 12143 near the long rod 12141. The magnet block 2 12144 and the circular block 12143 are fixedly installed on the other end of the circular block 12143 near the long rod 12141. The opposite ends of magnet block 12142 are in a state of magnetic repulsion. When the movable collar plate 122 moves due to negative pressure, magnet block 2 12144 will also move in the direction of magnet block 12142. When the cavity pressure is the same, the distance between magnet block 1 12142 and magnet block 2 12144 is also closer. Under the continuous repulsive effect between magnet block 2 12144 and magnet block 1 12142, the resetting of the related structures is accelerated, and the accuracy of the resetting of the related structures is also ensured.

[0032] The sealed block 124 is arc-shaped, and a guide hole 1241 is formed at the middle end of the sealed block 124 for the positioning rod 12131 to pass through, and guide holes 1242 are formed at both side ends of the sealed block 124 for the long rod 12141 to pass through.

[0033] Four partition plates 1221 are fixedly installed at equal intervals on one side of the movable collar plate 122 close to the plugging ring plate 123, and four partition plates 1231 are fixedly installed at equal intervals on one side of the plugging ring plate 123 close to the movable collar plate 122, and the four partition plates 1231 correspond to four interference holes 1224 respectively, and a storage cavity for placing the sealed block 124 is formed between two adjacent partition plates 1221 and two adjacent partition plates 1231, a sliding hole 1222 is provided on one side of the movable collar plate 122 and is located between two adjacent partition plates 1221, a sliding hole 1223 is provided on one side of the movable collar plate 122 and is located on both sides of the movable collar plate 122, a fixing groove 1233 is provided on one side of the plugging ring plate 123 and is located between two adjacent partition plates 1231, and a fixing hole 1234 is provided on one side of the plugging ring plate 123 and is located on both sides of the fixing groove 1233.

[0034] An interference hole 2 1224 is provided on one side of the partition 1221 close to the partition 2 1231, and an interference rod 2 1232 is welded and fixedly installed on the side of the partition 2 1231 close to the partition 1 1221, and the interference rod 2 1232 is inserted into the inside of the interference hole 2 1224. At the same time, the interference rod 2 1232 is interference-connected with the interference hole 2 1224, and the connection method between the movable collar plate 122 and the plugging ring plate 123 is that the interference rod 2 1232 is inserted into the inside of the interference hole 2 1224 for interference connection, thereby fixing the movable collar plate 122 and the plugging ring plate 123 together, so that the movable collar plate 122 and the plugging ring plate 123 are in a linked state.

[0035] The working principle of the present invention is: When in use, one end of the hose 2 is interference-fitted on the hanging platform tube 14, the other end of the hose 2 is connected to the suction end of the vacuum pump, the thrombus buckle removal head 1 is placed inside the patient's blood vessel, and the removal end of the thrombus buckle removal head 1 is in contact with the thrombus; Turn on the vacuum pump, and the negative pressure is transmitted to the inside of the inner tube 11 through the hose 2. Under the action of the negative pressure, the inner tube 11 is adsorbed on the thrombus. At this time, the negative pressure enters the cavity between the inner tube 11 and the outer sleeve 13 through the negative pressure connecting port 111, and the negative pressure adsorbs the movable collar plate 122 to drive it to move to one side of the annular block 1211. The plugging ring plate 123 will move with the movable collar plate 122. At this time, the positioning rod 12131 and the memory metal rod 12133 thereon are immobile, and the guide block 12134 moves in the direction of the positioning rod 12131, which is equivalent to the guide block 12134 and the memory metal rod 121 33 is in a state of relative motion. Under the guidance of the guide cavity 12135, the memory metal rod 12133 is passed through the end of the guide cavity 12135 to be guided and bent, so that the memory metal rod 12133 protrudes like a claw and grabs the thrombus, and a little bit of thrombus fragments are buckled from the large thrombus. Under the action of negative pressure, the thrombus fragments are discharged out of the body through the hose 2. When the movable collar plate 122 moves to the position of the negative pressure connecting port 111, the cavity pressure is the same, the negative pressure on the movable collar plate 122 fails, the relevant structure is reset, and the above operation is repeated to continuously grab and crush the thrombus through the memory metal rod 12133.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A structure for removing blood clots in a blood vessel, characterized in that: include: A thrombus buckle removal head (1), wherein a hose (2) is interference-fitted at a connecting pipe end of the thrombus buckle removal head (1), and a suction end of a vacuum pump is fixedly mounted at one end of the hose (2) away from the thrombus buckle removal head (1); The thrombus removal head (1) comprises an inner tube (11), the outer wall surface of the inner tube (11) is provided with four negative pressure communication ports (111) at equal intervals, a hanging tube (14) is fixedly provided at one end of the inner tube (11), an outer sleeve (13) is sleeved on the outer wall surface of the inner tube (11) and located on one side of the hanging tube (14), and a detachment assembly (12) for detaching thrombus is fixedly installed on the outer wall surface of the inner tube (11) and located between the outer wall surface of the inner tube (11) and the inner wall surface of the outer sleeve (13); The buckle assembly (12) comprises four buckle bodies (121) combined into a ring, a movable collar plate (122) is slidably mounted between the four buckle bodies (121), a plug ring plate (123) is detachably connected to a side of the movable collar plate (122) away from the buckle body (121), and four cavities are formed between the movable collar plate (122) and the plug ring plate (123), and a sealing block (124) is arranged inside each cavity.

2. The intravascular thrombus removal structure according to claim 1, characterized in that: The four sides of the outer wall of the inner tube (11) are provided with a limiting groove (112) connected to the negative pressure connecting port (111); a convex ring (15) is fixedly installed on one end of the outer wall of the inner tube (11) close to the hanging platform tube (14); the four sides of the outer wall of the convex ring (15) and the four sides of the inner wall are fixedly installed with a limiting strip (151); the inner wall of the outer sleeve (13) is provided with four limiting grooves (131) on one side close to the convex ring (15), and the limiting strip (151) on the upper side of the convex ring (15) enters the interior of the limiting groove (131).

3. The intravascular thrombus removal structure according to claim 2, characterized in that: The buckling and detaching body (121) comprises an annular block (1211) mounted on the inner tube (11), reset components (1214) being fixedly mounted on both sides of the annular block (1211) close to one end surface of the movable collar plate (122), and a buckling and detaching component (1213) being fixedly mounted on the middle part of the annular block (1211) close to one end surface of the movable collar plate (122).

4. The intravascular thrombus removal structure according to claim 3, characterized in that: The middle parts of the inner wall surface and the outer wall surface of the annular block (1211) are fixedly mounted with a second limiting strip (1212), the second limiting strip (1212) on the upper side is located inside the second limiting groove (131), and the second limiting strip (1212) on the lower side is located inside the first limiting groove (112).

5. The intravascular thrombus removal structure according to claim 4, characterized in that: The buckling member (1213) comprises a positioning rod (12131) and a guide block (12134) fixed to an end surface of the annular block (1211) close to the movable collar plate (122); a positioning hole (12132) is provided at the center of the circle of the end of the positioning rod (12131) away from the annular block (1211); a memory metal rod (12133) is movably arranged inside the positioning hole (12132); and the head end of the memory metal rod (12133) is passivated; a guide cavity (12135) is provided on one side of the guide block (12134) for the memory metal rod (12133) to pass through; and the memory metal rod (12133) is guided by the guide cavity (12135) and then bent toward the middle.

6. The intravascular thrombus removal structure according to claim 5, characterized in that: A locking groove (12136) is provided at one end of the positioning rod (12131) close to the positioning hole (12132), a locking block (12139) is fixedly installed inside the locking groove (12136), an interference hole (12137) is provided on a side of the locking block (12139) away from the positioning rod (12131), and the inside of the interference hole (12137) is interference-connected to the interference rod (12138).

7. The intravascular thrombus removal structure according to claim 6, characterized in that: The reset member (1214) comprises a long rod (12141) and a circular block (12143) fixed to an end surface of the annular block (1211) close to the movable collar plate (122); a magnet block 1 (12142) is fixedly mounted on one end of the long rod (12141) close to the circular block (12143); a magnet block 2 (12144) is fixedly mounted on one end of the circular block (12143) close to the long rod (12141); and opposite ends of the magnet block 2 (12144) and the magnet block 1 (12142) are in a magnetic repulsion state.

8. The intravascular thrombus removal structure according to claim 7, characterized in that: The sealing block (124) is arc-shaped, and a guide hole (1241) is formed through the middle end of the sealing block (124) for the positioning rod (12131) to pass through, and guide holes (1242) are formed through the two side ends of the sealing block (124) for the long rod (12141) to pass through.

9. The intravascular thrombus removal structure according to claim 8, characterized in that: Four partition plates (1221) are fixedly installed at equal intervals on one side of the movable collar plate (122) close to the plugging ring plate (123); four partition plates (1231) are fixedly installed at equal intervals on one side of the plugging ring plate (123) close to the movable collar plate (122); a sliding hole (1222) is provided on one side of the movable collar plate (122) and is located between two adjacent partition plates (1221); sliding holes (1223) are provided on one side of the movable collar plate (122) and are located on both sides of the movable collar plate (122); a fixing groove (1233) is provided on one side of the plugging ring plate (123) and is located between two adjacent partition plates (1231); and fixing holes (1234) are provided on one side of the plugging ring plate (123) and are located on both sides of the fixing groove (1233).

10. The intravascular thrombus removal structure according to claim 9, characterized in that: The partition plate 1 (1221) has an interference hole 2 (1224) on one side close to the partition plate 2 (1231), and the interference rod 2 (1232) is welded and fixedly installed on the side close to the partition plate 1 (1221), and the interference rod 2 (1232) is inserted into the interference hole 2 (1224), and at the same time, the interference rod 2 (1232) is interference-connected with the interference hole 2 (1224).

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