Vascular embolism embolism extraction balloon catheter device for venous thrombosis treatment

Abstract

The invention discloses a vascular embolism thrombus extraction balloon catheter device for venous thrombosis treatment, and relates to the technical field of medical instruments, the vascular embolism thrombus extraction balloon catheter device comprises a first guide hose, an air guide hose is fixedly connected to the outer side of the first guide hose, and a first air bag is fixedly connected to the outer side of the front end of the first guide hose; the front end of the air guide hose is communicated with the first air bag, a second guide hose is slidably connected into the first guide hose, a third guide hose is slidably connected into the second guide hose, a memory metal net is fixedly connected to the front end of the third guide hose, and a fourth guide hose is slidably connected into the third guide hose. The outer side of the connecting pipe is fixedly connected with a second air bag, the outer side of the supporting pipe is fixedly connected with a plurality of metal elastic pieces, the vascular embolism embolism taking balloon catheter device for venous thrombosis treatment is beneficial to treating thrombus at two positions at a time or treating thrombus at the same position for multiple times, and the embolism cleaning effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a balloon catheter device for vascular embolism thrombectomy in the treatment of venous thrombosis. Background Art

[0002] Vascular interventional therapy is an important treatment method for revascularization of vascular stenosis lesions. In vascular interventional therapy, balloon catheters are usually used as the main vascular interventional treatment instruments. Balloon catheter thrombectomy can be used for the treatment of vascular embolism, and can remove thrombi, plaques and other emboli retained in the blood vessels after detachment from the blood vessels.

[0003] However, in clinical practice, thrombosis combined with stenosis or old thrombosis is very common, and the recanalization rate of simple use of ordinary balloon thrombectomy is very low. For this symptom, generally in clinical practice, it is necessary to first dilate the stenotic part with a high-pressure balloon and then perform thrombectomy. During the thrombectomy process, thrombus detachment is a problem that needs to be highly emphasized. Thrombus detachment may cause serious complications, such as pulmonary embolism, which poses a threat to the patient's life. The risk of thrombus detachment during thrombectomy is related to various factors. On the one hand, the nature and location of the thrombus itself will affect the risk of detachment. For example, the angle between the right common iliac vein and the inferior vena cava is relatively large, and thrombus detachment is likely to occur during thrombectomy, while the risk of thrombectomy for deep vein thrombosis in the left lower limb is relatively low. On the other hand, some factors during the surgical operation process may also increase the risk of thrombus detachment, such as rough operation and damage to nearby blood vessels. Summary of the Invention

[0004] The purpose of the present invention is to provide a balloon catheter device for vascular embolism thrombectomy in the treatment of venous thrombosis, so as to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A balloon catheter device for vascular embolism thrombectomy in the treatment of venous thrombosis, including a first guiding hose, a gas guiding hose is fixedly connected to the outside of the first guiding hose, a first balloon is fixedly connected to the outside of the front end of the first guiding hose, the front end of the gas guiding hose is communicated with the first balloon, a second guiding hose is slidably connected inside the first guiding hose, a third guiding hose is slidably connected inside the second guiding hose, a memory metal mesh is fixedly connected to the front end of the third guiding hose, a fourth guiding hose is slidably connected inside the third guiding hose, a connecting pipe is fixedly connected to the outside of the front end of the fourth guiding hose, a second balloon is fixedly connected to the outside of the connecting pipe, ventilation grooves are provided on both sides of the front end of the fourth guiding hose and both sides of the connecting pipe, a support pipe is fixedly connected to the outside of the front end of the fourth guiding hose, and a plurality of metal elastic sheets are fixedly connected to the outside of the support pipe, and the metal elastic sheets are arranged inside the memory metal mesh.

[0006] Preferably, a first push tube is slidably connected to the outer side of the front end of the fourth guiding hose. A first limiting groove is formed in the front end of the first push tube and is arranged on the outer side of the second airbag. A second push tube is slidably connected to the outer side of the front end of the fourth guiding hose. After the second airbag is inflated and expands outwards, the second airbag expands in the first limiting groove to push the first push tube to move.

[0007] Preferably, the rear end of the first push tube is slidably connected to the outer side of the front end of the second push tube and is adapted to the second push tube. A second groove is formed in the rear end of the first push tube, and a first groove is formed in the front end of the second push tube. A spring is fixedly connected between the second groove and the first groove. A second limiting groove is formed in the rear end of the second push tube.

[0008] Preferably, the support tube is arranged between the second airbag and the memory metal net. A front moving ring is slidably connected to the outer side of the front end of the support tube, and a converging sleeve is slidably connected to the outer side of the rear end of the support tube. A rear moving ring is fixedly connected to the side of the converging sleeve facing the front moving ring. Connecting rods are fixedly connected to both sides between the front moving ring and the rear moving ring. Sliding grooves adapted to the connecting rods are formed on both sides of the support tube. The two connecting rods are respectively slidably connected inside the two sliding grooves to limit the connecting rods. In this way, when the front moving ring moves, it drives the connecting rods and the rear moving ring to move, and the rear moving ring drives the converging sleeve to move. A converging groove is formed at one end of the converging sleeve facing the metal elastic sheet, and the converging groove is adapted to the metal elastic sheet. When the converging sleeve moves backward, it pushes a plurality of metal elastic sheets to contract towards the middle.

[0009] Preferably, a connecting ring is fixedly connected to the rear end of the air guiding hose. The connecting ring is sleeved on the outer side of the first guiding hose. A first air conveying pipe is fixedly connected to one side of the connecting ring. A support sleeve is fixedly connected to the outer side of the air guiding hose. The first air conveying pipe penetrates through the support sleeve and is movably connected to the support sleeve. Gas is transmitted through the first air conveying pipe to control the expansion and contraction of the first airbag.

[0010] Preferably, a limiting frame is fixedly connected to the rear side of the support sleeve. A first moving sleeve is fixedly connected to the rear end of the second guiding hose. A first tooth groove is formed at the top of the first moving sleeve. A first rotating rod is rotatably connected to the inside of the front end of the limiting frame. A first gear is fixedly connected to the outer side of the first rotating rod. The first gear is meshed with the first tooth groove. A first rotating handle is fixedly connected to one end of the first rotating rod. Rotating the first rotating handle drives the first rotating rod to rotate, so that the first rotating rod drives the first gear to rotate, thereby driving the first moving sleeve and the second guiding hose to move.

[0011] Preferably, a second moving sleeve is fixedly connected to the rear end of the second guiding hose. A second tooth groove is formed at the top of the second moving sleeve. A second rotating rod is rotatably connected inside the limiting frame. A second gear is fixedly connected to the outer side of the second rotating rod. The second gear is meshed with the second tooth groove. One end of the second rotating rod is fixedly connected to a second rotating handle. By rotating the second rotating handle, the second rotating rod and the second gear are driven to rotate, thereby driving the second moving sleeve to move. When the second moving sleeve moves, it drives the third guiding hose to move.

[0012] Preferably, a third moving sleeve is fixedly connected to the rear end of the fourth guiding hose. A third tooth groove is formed at the top of the third moving sleeve. A third rotating rod is rotatably connected inside the limiting frame. A third gear is fixedly connected to the outer side of the third rotating rod. The third gear is meshed with the third tooth groove. A second air delivery pipe is fixedly connected to one side of the rear end of the fourth guiding hose. One end of the third rotating rod is fixedly connected to a third rotating handle. By driving the third rotating rod and the third gear to rotate through the third rotating handle, the third gear drives the third moving sleeve to move, thereby driving the fourth guiding hose to move.

[0013] Preferably, a fifth guiding hose is slidably connected inside the fourth guiding hose. Connecting blocks are fixedly connected to both sides of the front end of the fifth guiding hose. Transverse grooves are formed at both ends of the fourth guiding hose. The two connecting blocks respectively penetrate through the two transverse grooves and are slidably connected to the two transverse grooves. The two connecting blocks are both fixedly connected inside the second pushing pipe. By driving the connecting blocks to move through the fifth guiding hose, the second pushing pipe is driven to move.

[0014] Preferably, a fourth moving sleeve is fixedly connected to the outer side of the rear end of the fifth guiding hose. A fourth tooth groove is formed at the top of the fourth moving sleeve. A fourth rotating rod is rotatably connected inside the rear end of the limiting frame. A fourth gear is fixedly connected to the outer side of the fourth rotating rod. The fourth gear is meshed with the fourth tooth groove. One end of the fourth rotating rod is fixedly connected to a third rotating handle. Rotating the third rotating handle drives the fourth rotating rod and the fourth gear to rotate, thereby driving the fourth moving sleeve to move, so that the fourth moving sleeve drives the fifth guiding hose to move.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. In this application, the shape memory metal mesh extends outward from the inside of the second guiding hose. After the shape memory metal mesh extends out of the second guiding hose, it expands outward under its own elastic force, causing the shape memory metal mesh to return to a funnel shape. Then, rotate the third rotating handle to drive the third rotating rod to rotate, causing the third rotating rod to drive the third gear to rotate. When the third gear rotates, it drives the third moving sleeve and the fourth guiding hose to move. When the fourth guiding hose moves, it extends out from inside the shape memory metal mesh, passes through the middle of the embolism, and drives the connecting pipe and the second airbag to move forward, causing the connecting pipe and the second airbag to pass through the embolism. By pushing air into the fourth guiding hose through the second air supply pipe, the air is ejected from the ventilation slots to both sides, thereby inflating the inside of the second airbag, causing the second airbag to expand, contacting and supporting the inner wall of the blood vessel at the other end of the embolism, thus fixing the blood vessel. Then, drive the second airbag to move towards the shape memory metal mesh, causing the second airbag to push the embolism towards the shape memory metal mesh, and causing the shape memory metal mesh to receive the thrombus, facilitating the removal of the thrombus.

[0017] 2. During the inflation of the second airbag in this application, the second airbag is caused to push the first push pipe to move, causing the first push pipe to move and exert pressure on the first groove, and driving the second push pipe to move. Then, rotate the fourth rotating handle to drive the fourth rotating rod and the fourth gear to rotate. The fourth gear drives the fourth moving sleeve and the fifth guiding hose to move. When the fifth guiding hose moves, it drives the connecting block to move, thereby causing the connecting block to drive the second push pipe to move. Then, the second push pipe drives the front moving ring to move. Then, when the front moving ring moves, it drives two connecting rods to move. Then, the connecting rods drive the rear moving ring and the constriction sleeve to move, and the constriction sleeve is moved away from the outside of the metal elastic sheet, causing the metal elastic sheet to expand outward under its own elastic force. Then, the fourth guiding hose drives the support pipe to move towards the inside of the shape memory metal mesh. Then, the metal elastic sheet moves into the shape memory metal mesh to block the thrombus inside the shape memory metal mesh, preventing the thrombus from loosening.

[0018] 3. In this application, by adjusting the position of the fourth guiding hose and causing the metal elastic sheet to contract inward along the inner track of the shape memory metal mesh, it is ensured that the metal elastic sheet closely adheres to the inner wall of the shape memory metal mesh, forming a stable blocking structure. Then, the shape memory metal mesh can be driven to move to the next thrombus position. During this process, the removed thrombus will not fall off. Then, the second airbag is driven to the rear of the second thrombus again, and the second thrombus is pushed into the shape memory metal mesh by the second airbag. Then, the shape memory metal mesh is contracted into the second guiding hose. Then, the shape memory metal mesh and the metal elastic sheet are contracted. During this process, the position and stable state of the thrombus need to be continuously monitored. Finally, after the thrombus is safely isolated and removed from the body, the blocking device can be adjusted or released as needed to ensure the smooth progress of the treatment process, which is beneficial for treating two thrombi at one time or treating the same thrombus multiple times to improve the thrombus removal effect. Description of the Drawings

[0019] Figure 1 is the overall structural schematic diagram of the present invention;

[0020] Figure 2 is the structural schematic diagram of the second airbag of the present invention;

[0021] Figure 3 is the sectional structural schematic diagram of the present invention;

[0022] Figure 4 is of the present invention Figure 3 magnified view of the structure of part A;

[0023] Figure 5 is the structural schematic diagram of the ventilation groove of the present invention;

[0024] Figure 6 is the structural schematic diagram of the metal shrapnel of the present invention;

[0025] Figure 7 is the structural schematic diagram of the second push tube of the present invention;

[0026] Figure 8 is the structural schematic diagram of the converging sleeve of the present invention;

[0027] Figure 9 is the structural schematic diagram of the connecting ring of the present invention;

[0028] Figure 10 is the structural schematic diagram of the air guide hose of the present invention;

[0029] Figure 11 is the structural schematic diagram of the first moving sleeve of the present invention.

[0030] Reference numerals in the figure: 1, first guiding hose; 2, air guiding hose; 3, first airbag; 4, second guiding hose; 5, third guiding hose; 6, memory metal mesh; 7, fourth guiding hose; 8, ventilation groove; 9, connecting pipe; 10, second airbag; 11, first pushing pipe; 12, second pushing pipe; 13, spring; 14, first groove; 15, second groove; 16, first limiting groove; 17, second limiting groove; 18, support pipe; 19, metal elastic sheet; 20, front moving ring; 21, rear moving ring; 22, connecting rod; 23, constricting sleeve; 24, constricting groove; 25, connecting ring; 26, support sleeve; 27, first air delivery pipe; 28, second air delivery pipe; 29, limiting frame; 30, first moving sleeve; 31, first tooth groove; 32, first rotating rod; 33, first gear; 34, second moving sleeve; 35, second tooth groove; 36, second rotating rod; 37, second gear; 38, third moving sleeve; 39, third rotating rod; 40, third gear; 41, fourth moving sleeve; 42, fourth tooth groove; 43, fourth gear; 44, fourth rotating rod; 45, fifth guiding hose; 46, connecting block; 47, transverse groove; 48, third tooth groove. Detailed implementation manner

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Embodiment: As Figures 1 - 11As shown in the figure, the present invention provides a technical solution for a vascular embolization thrombectomy balloon catheter device for the treatment of venous thrombosis, which includes a first guiding hose 1. A gas guiding hose 2 is fixedly connected to the outside of the first guiding hose 1. A first balloon 3 is fixedly connected to the outside of the front end of the first guiding hose 1. The front end of the gas guiding hose 2 is communicated with the first balloon 3. A second guiding hose 4 is slidably connected inside the first guiding hose 1. A third guiding hose 5 is slidably connected inside the second guiding hose 4. A memory metal mesh 6 is fixedly connected to the front end of the third guiding hose 5. A fourth guiding hose 7 is slidably connected inside the third guiding hose 5. A connecting pipe 9 is fixedly connected to the outside of the front end of the fourth guiding hose 7. A second balloon 10 is fixedly connected to the outside of the connecting pipe 9. Ventilation grooves 8 are provided on both sides of the front end of the fourth guiding hose 7 and both sides of the connecting pipe 9. A support pipe 18 is fixedly connected to the outside of the front end of the fourth guiding hose 7. A plurality of metal elastic pieces 19 are fixedly connected to the outside of the support pipe 18. The metal elastic pieces 19 are arranged inside the memory metal mesh 6. A first push pipe 11 is slidably connected to the outside of the front end of the fourth guiding hose 7. A first limiting groove 16 is provided at the front end of the first push pipe 11. The first limiting groove 16 is arranged outside the second balloon 10. A second push pipe 12 is slidably connected to the outside of the front end of the fourth guiding hose 7. After the second balloon 10 is inflated and expands outwards, the second balloon 10 expands in the first limiting groove 16 to push the first push pipe 11 to move. The rear end of the first push pipe 11 is slidably connected to the outside of the front end of the second push pipe 12 and is adapted to the second push pipe 12. A second groove 15 is provided at the rear end of the first push pipe 11. A first groove 14 is provided at the front end of the second push pipe 12. A spring 13 is fixedly connected between the second groove 15 and the first groove 14. A second limiting groove 17 is provided at the rear end of the second push pipe 12.

[0033] The support tube 18 is arranged between the second airbag 10 and the memory metal net 6. A front moving ring 20 is slidably connected to the front end of the outer side of the support tube 18, and a retracting sleeve 23 is slidably connected to the rear end of the outer side of the support tube 18. A rear moving ring 21 is fixedly connected to one side of the retracting sleeve 23 facing the front moving ring 20. Connecting rods 22 are fixedly connected to both sides between the front moving ring 20 and the rear moving ring 21. Chutes adapted to the connecting rods 22 are formed on both sides of the support tube 18, and the two connecting rods 22 are respectively slidably connected inside the two chutes to limit the connecting rods 22. In this way, when the front moving ring 20 moves, it drives the connecting rods 22 and the rear moving ring 21 to move, and the rear moving ring 21 drives the retracting sleeve 23 to move. A retracting groove 24 is formed at one end of the retracting sleeve 23 facing the metal elastic sheet 19, and the retracting groove 24 is adapted to the metal elastic sheet 19. When the retracting sleeve 23 moves backward, it pushes a plurality of metal elastic sheets 19 to contract toward the middle. A connecting ring 25 is fixedly connected to the rear end of the air guide hose 2, and the connecting ring 25 is sleeved outside the first guide hose 1. A first air pipe 27 is fixedly connected to one side of the connecting ring 25. A support sleeve 26 is fixedly connected to the outside of the air guide hose 2. The first air pipe 27 penetrates through the support sleeve 26 and is movably connected to the support sleeve 26. Gas is transmitted through the first air pipe 27 to control the expansion and contraction of the first airbag 3.

[0034] A limiting frame 29 is fixedly connected to the rear side of the support sleeve 26. A first moving sleeve 30 is fixedly connected to the rear end of the second guide hose 4. A first tooth groove 31 is formed at the top of the first moving sleeve 30. A first rotating rod 32 is rotatably connected to the inside of the front end of the limiting frame 29. A first gear 33 is fixedly connected to the outside of the first rotating rod 32. The first gear 33 is meshed and connected with the first tooth groove 31. A first rotating handle is fixedly connected to one end of the first rotating rod 32. Rotating the first rotating handle drives the first rotating rod 32 to rotate, so that the first rotating rod 32 drives the first gear 33 to rotate, thereby driving the first moving sleeve 30 and the second guide hose 4 to move.

[0035] A second moving sleeve 34 is fixedly connected to the rear end of the second guide hose 4. A second tooth groove 35 is formed at the top of the second moving sleeve 34. A second rotating rod 36 is rotatably connected to the inside of the limiting frame 29. A second gear 37 is fixedly connected to the outside of the second rotating rod 36. The second gear 37 is meshed and connected with the second tooth groove 35. A second rotating handle is fixedly connected to one end of the second rotating rod 36. By rotating the second rotating handle, the second rotating rod 36 and the second gear 37 are driven to rotate, thereby driving the second moving sleeve 34 to move. When the second moving sleeve 34 moves, it drives the third guide hose 5 to move.

[0036] The rear end of the fourth guiding hose 7 is fixedly connected with a third moving sleeve 38. A third tooth groove 48 is formed at the top of the third moving sleeve 38. A third rotating rod 39 is rotatably connected inside the limiting frame 29. A third gear 40 is fixedly connected to the outer side of the third rotating rod 39. The third gear 40 is meshed and connected with the third tooth groove 48. One side of the rear end of the fourth guiding hose 7 is fixedly connected with a second air delivery pipe 28. One end of the third rotating rod 39 is fixedly connected with a third rotating handle. By driving the third rotating rod 39 and the third gear 40 to rotate through the third rotating handle, the third gear 40 drives the third moving sleeve 38 to move, thereby driving the fourth guiding hose 7 to move.

[0037] A fifth guiding hose 45 is slidably connected inside the fourth guiding hose 7. Connecting blocks 46 are fixedly connected to both sides of the front end of the fifth guiding hose 45. Horizontal grooves 47 are formed at both ends of the fourth guiding hose 7. The two connecting blocks 46 respectively penetrate through the two horizontal grooves 47 and are slidably connected with the two horizontal grooves 47. The two connecting blocks 46 are both fixedly connected inside the second pushing pipe 12. By driving the connecting blocks 46 to move through the fifth guiding hose 45, the second pushing pipe 12 is driven to move. A fourth moving sleeve 41 is fixedly connected to the outer side of the rear end of the fifth guiding hose 45. A fourth tooth groove 42 is formed at the top of the fourth moving sleeve 41. A fourth rotating rod 44 is rotatably connected inside the rear end of the limiting frame 29. A fourth gear 43 is fixedly connected to the outer side of the fourth rotating rod 44. The fourth gear 43 is meshed and connected with the fourth tooth groove 42. One end of the fourth rotating rod 44 is fixedly connected with a third rotating handle. Rotating the third rotating handle drives the fourth rotating rod 44 and the fourth gear 43 to rotate, thereby driving the fourth moving sleeve 41 to move, so that the fourth moving sleeve 41 drives the fifth guiding hose 45 to move.

[0038] When this solution is in use, the first guiding hose 1 is guided by a guiding wire to move inside the blood vessel. When it moves to the front end of the embolism position, gas is transmitted into the inside of the connecting ring 25 through the first air delivery pipe 27, and the gas is input into the inside of the first airbag 3 along the connecting ring 25 and the air guiding hose 2, so that the first airbag 3 expands outwards, and the first airbag 3 contacts and supports the inner wall of the blood vessel. The medical staff rotates the first rotating handle by hand to drive the first rotating rod 32 to rotate, and then drives the first gear 33 to rotate. Then, when the first gear 33 rotates, it drives the first tooth groove 31 and the first moving sleeve 30 to move. Then, the first moving sleeve 30 drives the second guiding hose 4 to move. When the second guiding hose 4 moves outwards from the inside of the first guiding hose 1, it moves towards the embolism position. Then, the second rotating handle is rotated to drive the second rotating rod 36 to rotate, so that the second rotating rod 36 drives the second gear 37 to rotate. The rotation of the second gear 37 pushes the second moving sleeve 34 and the third guiding hose 5 to move. When the third guiding hose 5 moves, it drives the memory metal mesh 6 to move forward, so that the memory metal mesh 6 extends outwards from the inside of the second guiding hose 4. When the memory metal mesh 6 extends out from the inside of the second guiding hose 4, it expands outwards under its own elastic force, and the memory metal mesh 6 returns to the funnel shape. Then, the third rotating handle is rotated to drive the third rotating rod 39 to rotate, so that the third rotating rod 39 drives the third gear 40 to rotate. When the third gear 40 rotates, it drives the third moving sleeve 38 and the fourth guiding hose 7 to move. When the fourth guiding hose 7 moves, it extends out from the inside of the memory metal mesh 6, passes through the middle of the embolism, and drives the connecting pipe 9 and the second airbag 10 to move forward, so that the connecting pipe 9 and the second airbag 10 pass through the embolism. By pushing the second air delivery pipe 28 to input gas into the inside of the fourth guiding hose 7, the gas is ejected from the ventilation grooves 8 to both sides, so as to inflate the inside of the second airbag 10, and the second airbag 10 expands to contact and support the inner wall of the blood vessel at the other end of the embolism, so as to fix the blood vessel. Then, the second airbag 10 is driven to move towards the memory metal mesh 6, so that the second airbag 10 pushes the embolism towards the memory metal mesh 6, and the memory metal mesh 6 collects the thrombus, which is convenient for removing the thrombus.

[0039] During the inflation of the second airbag 10, the second airbag 10 is made to push the first push tube 11 to move, the movement of the first push tube 11 presses on the first groove 14, and the second push tube 12 is pushed to move. Then, the fourth turning handle is rotated to drive the fourth turning rod 44 and the fourth gear 43 to rotate. The fourth gear 43 drives the fourth moving sleeve 41 and the fifth guiding hose 45 to move. When the fifth guiding hose 45 moves, it drives the connecting block 46 to move, so that the connecting block 46 drives the second push tube 12 to move. Then, the second push tube 12 drives the front moving ring 20 to move. Then, when the front moving ring 20 moves, it drives the two connecting rods 22 to move. Then, the connecting rods 22 drive the rear moving ring 21 and the constricting sleeve 23 to move, and the constricting sleeve 23 is moved away from the outside of the metal elastic sheet 19, so that the metal elastic sheet 19 expands outwards under its own elastic force. Then, the fourth guiding hose 7 drives the support tube 18 to move towards the inside of the shape memory metal mesh 6. Then, the metal elastic sheet 19 moves into the shape memory metal mesh 6 to block the blood clot inside the shape memory metal mesh 6, preventing the blood clot from loosening. Then, by adjusting the position of the fourth guiding hose 7 and making the metal elastic sheet 19 contract along the inner track of the shape memory metal mesh 6, it is ensured that the metal elastic sheet 19 closely adheres to the inner wall of the shape memory metal mesh 6, forming a stable blocking structure. Then, the shape memory metal mesh 6 can be driven to move to the next blood clot position, and during this process, the removed blood clot will not fall off. Then, the second airbag 10 is driven to the rear side of the second blood clot again, and the second blood clot is pushed by the second airbag 10 into the shape memory metal mesh 6. Then, the shape memory metal mesh 6 is contracted towards the inside of the second guiding hose 4. Then, the shape memory metal mesh 6 and the metal elastic sheet 19 are contracted. During this process, the position and stable state of the blood clot need to be continuously monitored. Finally, after the blood clot is safely isolated and removed from the body, the blocking device can be adjusted or released as needed to ensure the smooth progress of the treatment process, which is beneficial for treating two blood clots at one time or treating the same blood clot multiple times to improve the blood clot removal effect.

[0040] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A vascular embolism thrombectomy balloon catheter device for treating venous thrombosis, characterized in that: The invention comprises a first guide hose (1), the outer side of the first guide hose (1) is fixedly connected to an air guide hose (2), the outer side of the front end of the first guide hose (1) is fixedly connected to a first air bag (3), the front end of the air guide hose (2) is connected to the first air bag (3), the first guide hose (1) is slidably connected to a second guide hose (4), the second guide hose (4) is slidably connected to a third guide hose (5), the front end of the third guide hose (5) is fixedly connected to a memory metal mesh (6), and the third guide hose (5) is connected to a second guide hose (4) in a slidable manner. ) is slidably connected to the inside of the fourth guide hose (7), the front end of the fourth guide hose (7) is fixedly connected to a connecting pipe (9), the outside of the connecting pipe (9) is fixedly connected to a second airbag (10), both sides of the front end of the fourth guide hose (7) and both sides of the connecting pipe (9) are provided with ventilation grooves (8), the front end of the fourth guide hose (7) is fixedly connected to a support pipe (18), the outside of the support pipe (18) is fixedly connected to a plurality of metal springs (19), and the metal springs (19) are arranged inside the memory metal mesh (6).

2. A vascular embolism thrombectomy balloon catheter device for treating venous thrombosis according to claim 1, characterized in that: The front end of the fourth guide hose (7) is slidably connected to a first push tube (11), the front end of the first push tube (11) is provided with a first limiting groove (16), the first limiting groove (16) is arranged on the outside of the second airbag (10), and the front end of the fourth guide hose (7) is slidably connected to a second push tube (12).

3. A vascular embolism thrombectomy balloon catheter device for treating venous thrombosis according to claim 2, characterized in that: The rear end of the first push tube (11) is slidably connected to the outer side of the front end of the second push tube (12) and is adapted to the second push tube (12); a second groove (15) is provided at the rear end of the first push tube (11); a first groove (14) is provided at the front end of the second push tube (12); a spring (13) is fixedly connected between the second groove (15) and the first groove (14); and a second limiting groove (17) is provided at the rear end of the second push tube (12).

4. The vascular embolism thrombectomy balloon catheter device for treating venous thrombosis according to claim 1, characterized in that: The support tube (18) is arranged between the second airbag (10) and the memory metal mesh (6); the front end of the outer side of the support tube (18) is slidably connected to a front movable ring (20); the rear end of the outer side of the support tube (18) is slidably connected to a tightening sleeve (23); the tightening sleeve (23) is fixedly connected to a rear movable ring (21) facing the front movable ring (20); connecting rods (22) are fixedly connected on both sides between the front movable ring (20) and the rear movable ring (21); both sides of the support tube (18) are provided with sliding grooves adapted to the connecting rods (22); the two connecting rods (22) are respectively slidably connected to the inside of the two sliding grooves; the tightening sleeve (23) is provided with a tightening groove (24) facing one end of the metal spring sheet (19); the tightening groove (24) is adapted to the metal spring sheet (19).

5. The vascular embolism thrombectomy balloon catheter device for treating venous thrombosis according to claim 1, characterized in that: The rear end of the air guide hose (2) is fixedly connected to a connecting ring (25), the connecting ring (25) is sleeved on the outside of the first guide hose (1), one side of the connecting ring (25) is fixedly connected to a first air supply pipe (27), the outside of the air guide hose (2) is fixedly connected to a supporting sleeve (26), the first air supply pipe (27) penetrates the supporting sleeve (26) and is movably connected to the supporting sleeve (26).

6. A vascular embolism thrombectomy balloon catheter device for treating venous thrombosis according to claim 5, characterized in that: The rear side of the support sleeve (26) is fixedly connected to a limiting frame (29); the rear end of the second guide hose (4) is fixedly connected to a first movable sleeve (30); a first tooth groove (31) is provided on the top of the first movable sleeve (30); a first rotating rod (32) is rotatably connected to the interior of the front end of the limiting frame (29); a first gear (33) is fixedly connected to the outer side of the first rotating rod (32); the first gear (33) is meshedly connected to the first tooth groove (31); and a first rotating handle is fixedly connected to one end of the first rotating rod (32).

7. A vascular embolism thrombectomy balloon catheter device for treating venous thrombosis according to claim 6, characterized in that: The rear end of the third guide hose (5) is fixedly connected to a second movable sleeve (34), a second tooth groove (35) is provided on the top of the second movable sleeve (34), a second rotating rod (36) is rotatably connected inside the limiting frame (29), a second gear (37) is fixedly connected to the outside of the second rotating rod (36), the second gear (37) is meshedly connected to the second tooth groove (35), and a second rotating handle is fixedly connected to one end of the second rotating rod (36).

8. The vascular embolism thrombectomy balloon catheter device for treating venous thrombosis according to claim 6, characterized in that: The rear end of the fourth guide hose (7) is fixedly connected to a third movable sleeve (38), a third tooth groove (48) is provided on the top of the third movable sleeve (38), a third rotating rod (39) is rotatably connected inside the limiting frame (29), a third gear (40) is fixedly connected to the outside of the third rotating rod (39), the third gear (40) is meshingly connected to the third tooth groove (48), one side of the rear end of the fourth guide hose (7) is fixedly connected to the second air supply pipe (28), and one end of the third rotating rod (39) is fixedly connected to a third rotating handle.

9. A vascular embolism thrombectomy balloon catheter device for treating venous thrombosis according to claim 8, characterized in that: The fourth guide hose (7) is slidably connected to a fifth guide hose (45), and both sides of the front end of the fifth guide hose (45) are fixedly connected to connecting blocks (46). Both ends of the fourth guide hose (7) are provided with transverse grooves (47), and the two connecting blocks (46) respectively penetrate the two transverse grooves (47) and are slidably connected to the two transverse grooves (47), and the two connecting blocks (46) are fixedly connected to the inside of the second push tube (12).

10. The vascular embolism thrombectomy balloon catheter device for treating venous thrombosis according to claim 9, characterized in that: The rear end of the fifth guide hose (45) is fixedly connected to a fourth movable sleeve (41) on the outside, a fourth tooth groove (42) is provided on the top of the fourth movable sleeve (41), the rear end of the limit frame (29) is internally rotatably connected to a fourth rotating rod (44), the outer side of the fourth rotating rod (44) is fixedly connected to a fourth gear (43), the fourth gear (43) is meshingly connected to the fourth tooth groove (42), and one end of the fourth rotating rod (44) is fixedly connected to a fourth rotating handle.

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