Thrombus aspiration and thrombolytic protection method

Abstract

This invention discloses a method for thrombus aspiration and thrombolysis with protection, relating to the field of medical equipment technology. The invention includes steps S1 (injection of subcutaneous anesthesia), S2 (thrombus aspiration), and S3 (thrombus thrombolysis). In this invention, through the cooperation of a flow channel control component, a push-pull mechanism, and a power switching component, the flow channel control component controls the opening and closing of the cavity, and the power switching component controls the push-pull mechanism to act on the aspiration or injection vessel. During thrombus aspiration, the piston disc in the push-pull mechanism draws the thrombus into the aspiration vessel. During thrombolysis, the piston disc in the push-pull mechanism squeezes the thrombolytic agent in the injection vessel, injecting the thrombolytic agent into the thrombus segment of the blood vessel via a catheter. This conveniently realizes thrombus aspiration and thrombolysis operations during thrombus treatment, effectively improving the convenience of thrombus aspiration and thrombolysis operations and reducing the workload of medical personnel during surgery.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a method for thrombus aspiration and thrombolysis protection. Background Technology

[0002] Thrombus aspiration refers to the removal of blood clots from arteries or veins using specialized instruments such as aspiration catheters or thrombolytic devices. This technique aims to rapidly restore blood circulation and prevent tissue damage or organ failure.

[0003] Thrombolysis is a treatment method that involves intravenously injecting specific thrombolytic drugs into the body to dissolve blood clots blocking blood vessels.

[0004] However, some shortcomings still exist in the process of thrombus aspiration and thrombolysis:

[0005] During interventional treatment of thrombosis, it is usually necessary to use a syringe to aspirate the thrombus and to inject thrombolytic drugs into the thrombus segment of the blood vessel to dissolve the thrombus. Since both treatment processes require manual operation of the syringe, the thrombus aspiration and thrombolysis operations are inconvenient and the treatment is physically demanding.

[0006] To address the aforementioned problems, the inventors proposed a thrombus aspiration and thrombolysis protection method to solve these issues. Summary of the Invention

[0007] To address the aforementioned problems, the present invention aims to provide a method for thrombus aspiration and thrombolysis with protection.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a method for thrombus aspiration and thrombolysis protection, comprising the following steps:

[0009] S1. First, disinfect the femoral artery, then inject subcutaneous anesthesia;

[0010] S2. Insert a catheter through the femoral artery on the healthy side, and then perform bilateral lower limb arteriography at the lower end of the abdominal aorta to determine the location of the embolism. Place the appropriate vascular sheath according to the diameter of the vessel at the location of the embolism, and then insert a catheter under the guidance of a guidewire to the plane of the embolism. Connect the guide tube to the thrombus through the thrombus aspiration device and maintain negative pressure to aspirate the thrombus. Repeat the aspiration several times. Stop the aspiration when the thrombus is aspirated and blood flow is unobstructed.

[0011] S3. After aspiration, urokinase is injected through the thrombectomy device, and the catheter is left in place in the diseased blood vessel. Then, the patient returns to the ward for thrombolysis. Urokinase is injected for 1-3 days. If angiography shows that the thrombus segment is not filled or defective, the catheter can be removed, and then the blood vessel can be closed with a vascular closure device.

[0012] Preferably, the thrombectomy device includes a U-shaped base frame, a suction canister, and an injection canister. Two support rings are fixedly installed on the inner wall of the U-shaped base frame. The end of the suction canister is in movable contact with the inner wall of the two support rings. The injection canister is fixedly installed on the upper part of the suction canister.

[0013] A suction tube is fixedly provided at one end of the suction can, an injection tube is fixedly provided at one end of the injection can, a sleeve is fixedly provided at one end of the injection tube, one end of the sleeve is fixedly connected to one end of the suction can, the sleeve is sleeved on the outside of the suction tube, a cavity is formed between the inner wall of the sleeve and the outer wall of the suction tube, and a filling tube is fixedly provided at one end of the injection can.

[0014] The other end of the sleeve is provided with a flow channel control component, the U-shaped base frame is provided with a push-pull mechanism, and the push-pull mechanism is provided with a power switching component.

[0015] Preferably, the flow channel control assembly includes a fixed ring, which is fixedly disposed on the inner wall of the end of the sleeve away from the injection tube. The outer wall of the fixed ring has a plurality of fixed slots arranged in a ring array. A rotating ring is provided on one side of the fixed ring. The outer wall of the rotating ring has a plurality of movable slots arranged in a ring array, and the movable slots are staggered from the fixed slots.

[0016] Preferably, a fixing sleeve is fixedly provided at the axial center of the fixing ring, and a rotating shaft is rotatably installed at the axial center of the fixing sleeve. Two connecting rods are fixedly provided at one end of the rotating shaft, and one end of the two connecting rods is fixedly connected to the inner wall of the rotating ring.

[0017] Preferably, a worm gear is rotatably installed inside the fixed sleeve, and a worm wheel is fixedly provided at the other end of the rotating shaft. The worm gear and the worm wheel are meshed and connected, and a first knob is fixedly provided at one end of the worm gear.

[0018] Preferably, the push-pull mechanism includes two piston discs, one of which is movably disposed on the inner wall of one end of the suction can, and the other is movably disposed on the inner wall of one end of the injection can. A piston rod is fixedly disposed on one side of each of the two piston discs. One end of one piston rod is slidably connected to the other end of the suction can, and the other end of the piston rod is slidably connected to the other end of the injection can. A connecting shaft is fixedly disposed on one end of each of the two piston rods. An L-shaped movable frame is slidably disposed above the U-shaped base frame, and the two connecting shafts are movably disposed on one end of the L-shaped movable frame.

[0019] Preferably, a movable seat is slidably provided at one end of the U-shaped base frame, one end of the movable seat is fixedly connected to the other end of the L-shaped movable frame, and a lead screw is rotatably installed at one end of the U-shaped base frame, with one end of the lead screw being threadedly rotatably connected to the movable seat;

[0020] A drive motor is fixedly installed at the other end of the U-shaped base frame. A first rotating rod is fixedly installed at the drive output end of the drive motor. A drive gear is fixedly installed at one end of the first rotating rod. A second rotating rod is rotatably installed at the other end of the U-shaped base frame. A driven gear is fixedly installed at one end of the second rotating rod. The drive gear and the driven gear are meshed and connected. The other end of the second rotating rod is fixedly connected to the other end of the lead screw.

[0021] Preferably, a support base is fixedly provided at one end of the L-shaped movable frame, and one end of the support base is in movable contact with the inner wall of the U-shaped base frame. A guide groove is provided on the inner wall of the U-shaped base frame, and a guide block is fixedly provided at one end of the movable base. The guide block is slidably disposed at one end of the guide groove.

[0022] Preferably, the power switching assembly includes two L-shaped limiting rods, each of the two connecting shafts has a limiting hole at one end, one end of the L-shaped limiting rod is movably inserted into the inner wall of the limiting hole, one end of the L-shaped moving frame has two sliding grooves, one end of each of the two sliding grooves is slidably provided with a slider, and the other end of the L-shaped limiting rod is fixedly connected to one side of the slider.

[0023] Preferably, two threaded rods are rotatably mounted on one end of the L-shaped movable frame. The threaded rods pass through the slide groove and are rotatably connected to the slider by threads. A second knob is fixedly provided on one end of each of the two threaded rods.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] In this invention, through the cooperation of a flow channel control component, a push-pull mechanism, and a power switching component, the flow channel control component controls the opening and closing of the cavity, and the power switching component controls the push-pull mechanism to act on the aspiration canister or the injection canister. During the aspiration of thrombus, the piston disc in the push-pull mechanism can draw the thrombus into the aspiration canister. During the thrombolysis process, the piston disc in the push-pull mechanism can squeeze the thrombolytic agent in the injection canister and inject the thrombolytic agent into the thrombus segment of the blood vessel through a catheter. This conveniently realizes the thrombus aspiration and thrombolysis operations during the thrombus treatment process, thereby effectively improving the convenience of thrombus aspiration and thrombolysis operations and reducing the workload of medical personnel during surgery. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1This is a schematic diagram of the overall structure of the thrombectomy device of the present invention.

[0028] Figure 2 This is another overall structural schematic diagram of the thrombectomy device of the present invention.

[0029] Figure 3 This is a schematic diagram showing the separation of the suction can and injection can from the support ring of the present invention.

[0030] Figure 4 This is a cross-sectional structural diagram of the suction can and injection can of the present invention.

[0031] Figure 5 This is a cross-sectional view of the sleeve of the present invention.

[0032] Figure 6 For the present invention Figure 5 Enlarged schematic diagram of part A in the diagram.

[0033] Figure 7 This is a schematic diagram of the flow channel control component of the present invention.

[0034] Figure 8 This is a schematic diagram of the push-pull mechanism and power switching component of the present invention.

[0035] Figure 9 For the present invention Figure 8 Enlarged schematic diagram of part B in the diagram.

[0036] In the diagram: 10. Suction device; 1. U-shaped base frame; 2. Suction tank; 3. Injection tank; 11. Support ring; 21. Suction tube; 31. Injection tube; 32. Sleeve; 33. Cavity; 34. Filling tube; 4. Flow control assembly; 41. Fixing ring; 42. Fixing slot; 43. Rotating ring; 44. Movable slot; 45. Fixing sleeve; 46. Rotating shaft; 47. Connecting rod; 48. Worm gear; 49. Worm wheel; 481. First knob; 5. Push-pull mechanism 51. Piston disc; 52. Piston rod; 53. Connecting shaft; 54. L-shaped moving frame; 55. Moving seat; 56. Lead screw; 57. Support seat; 58. Guide groove; 59. Guide block; 6. Drive motor; 61. First rotating rod; 62. Drive gear; 63. Second rotating rod; 64. Driven gear; 7. Power switching assembly; 71. L-shaped limiting rod; 72. Limiting hole; 73. Slide groove; 74. Slider; 75. Threaded rod; 76. Second knob. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Example: Figure 1-9 As shown, the present invention provides a method for thrombus aspiration and thrombolysis protection, comprising the following steps:

[0039] S1. First, disinfect the femoral artery, then inject subcutaneous anesthesia;

[0040] S2. Insert a catheter through the femoral artery on the healthy side, and then perform bilateral lower limb arteriography at the lower end of the abdominal aorta. The location of the embolism is determined by the lower limb arteriography. According to the diameter of the vessel at the location of the embolism, the corresponding vascular sheath is placed. Then, under the guidance of the guidewire, the catheter is inserted to the plane of the embolism. The thrombus is aspirated through the guide tube of the thrombus aspiration device 10 and negative pressure is maintained. The aspiration is repeated several times. When the thrombus is aspirated and blood flow is smooth, the aspiration is stopped.

[0041] S3. After aspiration, urokinase is injected through the thrombectomy device 10. The catheter is left in place in the diseased blood vessel. Then, the patient returns to the ward for thrombolysis. Urokinase is injected for 1-3 days. If angiography shows that the thrombus segment is not filled or defective, the catheter can be removed. Then, the blood vessel is closed with a vascular closure device.

[0042] The thrombectomy device 10 includes a U-shaped base frame 1, an aspiration canister 2, and an injection canister 3. Two support rings 11 are fixedly installed on the inner wall of the U-shaped base frame 1. The end of the aspiration canister 2 is in contact with the inner wall of the two support rings 11. The injection canister 3 is fixedly installed on the upper part of the aspiration canister 2. By setting the support rings 11, the support rings 11 can support the aspiration canister 2 and the injection canister 3, and at the same time facilitate the removal of the aspiration canister 2 and the injection canister 3. By setting the aspiration canister 2 and the injection canister 3, the thrombus in the thrombectomy process enters the aspiration canister 2, and the thrombolytic agent used in the thrombectomy treatment can be injected into the injection canister 3.

[0043] A suction tube 21 is fixedly installed at one end of the suction canister 2. When the outer end of the catheter is fixed to the end of the suction tube 21, the thrombus can enter the suction canister 2 through the catheter and the suction tube 21. An injection tube 31 is fixedly installed at one end of the injection canister 31. A sleeve 32 is fixedly installed at one end of the injection tube 31. One end of the sleeve 32 is fixedly connected to one end of the suction canister 2. The sleeve 32 is sleeved on the outside of the suction tube 21. A cavity 33 is formed between the inner wall of the sleeve 32 and the outer wall of the suction tube 21. By setting the injection tube 31, the sleeve 32, and the cavity 33, when the medicine in the injection canister 3 is squeezed, the medicine can enter the cavity 33 through the injection tube 31 and then enter the thrombus segment of the blood vessel through the catheter for thrombolysis. An injection tube 34 is fixedly installed at one end of the injection canister 3. By setting the injection tube 34, it is convenient for medical personnel to inject the thrombolytic medicine into the injection canister 3.

[0044] The other end of the cannula 32 is provided with a flow control component 4. By setting the flow control component 4, the flow control component 4 can realize the opening and closing of the cavity 33. The U-shaped base frame 1 is provided with a push-pull mechanism 5. By setting the push-pull mechanism 5, the push-pull mechanism 5 can aspirate the thrombus through the aspiration canister 2. The thrombus enters the aspiration canister 2 through the catheter and aspiration tube 21. It can also squeeze the thrombolytic agent in the injection canister 3. The thrombolytic agent enters the thrombus segment of the blood vessel through the injection tube 31, the cavity 33 and the catheter. The push-pull mechanism 5 is provided with a power switching component 7. By setting the power switching component 7, the power switching component 7 can adjust the push-pull mechanism 5, and can perform thrombus aspiration and thrombolytic drug injection respectively.

[0045] The flow control assembly 4 includes a fixed ring 41, which is fixedly disposed on the inner wall of the sleeve 32 away from the injection tube 31. The outer wall of the fixed ring 41 has a plurality of fixed slots 42 arranged in a ring array. A rotating ring 43 is provided on one side of the fixed ring 41. The outer wall of the rotating ring 43 has a plurality of movable slots 44 arranged in a ring array. The movable slots 44 are staggered from the fixed slots 42. By setting the fixed slots 42, rotating ring 43 and movable slots 44, when the rotating ring 43 rotates and the movable slots 44 coincide with the fixed slots 42, the cavity 33 is in a smooth state, and the thrombolytic drug in the injection can 3 can enter the catheter through the injection tube 31 and the cavity 33. If the movable slots 44 and fixed slots 42 are staggered, the cavity 33 is in a closed state, and the thrombolytic drug cannot pass through.

[0046] A fixed sleeve 45 is fixedly installed at the axial center of the fixed ring 41. A rotating shaft 46 is rotatably installed at the axial center of the fixed sleeve 45. Two connecting rods 47 are fixedly installed at one end of the rotating shaft 46. One end of the two connecting rods 47 is fixedly connected to the inner wall of the rotating ring 43. By driving the rotating shaft 46 to rotate, the rotating shaft 46 can cause the rotating ring 43 to rotate through the connecting rods 47, thereby causing the movable slot 44 to be misaligned or coincident with the fixed slot 42.

[0047] A worm gear 48 is rotatably installed inside the fixed sleeve 45, and a worm wheel 49 is fixedly installed at the other end of the rotating shaft 46. The worm gear 48 and the worm wheel 49 are meshed and connected. A first knob 481 is fixedly installed at one end of the worm gear 48. By rotating the first knob 481, the worm gear 48 can be rotated, which in turn drives the worm wheel 49 to rotate, and the worm wheel 49 can cause the rotating shaft 46 to rotate.

[0048] The push-pull mechanism 5 includes two piston discs 51. One piston disc 51 is movably mounted on the inner wall of one end of the suction can 2, and the other piston disc 51 is movably mounted on the inner wall of one end of the injection can 3. A piston rod 52 is fixedly mounted on one side of each piston disc 51. One end of one piston rod 52 is slidably connected to the other end of the suction can 2, and one end of the other piston rod 52 is slidably connected to the other end of the injection can 3. A connecting shaft 53 is fixedly mounted on one end of each piston rod 52. An L-shaped movable frame 54 is slidably mounted above the U-shaped base frame 1. The two connecting shafts 53... 3. The movable part is located at one end of the L-shaped movable frame 54. By driving the L-shaped movable frame 54 to move horizontally, the L-shaped movable frame 54 can make the piston disc 51 move horizontally in the aspiration can 2 and the injection can 3 through the connecting shaft 53 and the piston rod 52. When the piston disc 51 moves horizontally in the aspiration can 2, the thrombus in the blood vessel can be aspirated through the aspiration tube 21 and the catheter. When the piston disc 51 moves horizontally in the injection can 3, the thrombolytic agent in the injection can 3 can be squeezed. The thrombolytic agent in the injection can 3 enters the thrombus segment of the blood vessel through the injection tube 31, the cavity 33 and the catheter.

[0049] A movable seat 55 is slidably provided at one end of the U-shaped base frame 1. One end of the movable seat 55 is fixedly connected to the other end of the L-shaped movable frame 54. A lead screw 56 is rotatably installed at one end of the U-shaped base frame 1. One end of the lead screw 56 is threadedly rotatably connected to the movable seat 55. By driving the movable seat 55 to move horizontally, the movable seat 55 can make the L-shaped movable frame 54 move horizontally. By driving the lead screw 56 to rotate, the lead screw 56 can drive the movable seat 55 to move horizontally.

[0050] A drive motor 6 is fixedly installed at the other end of the U-shaped base frame 1. A first rotating rod 61 is fixedly installed at the drive output end of the drive motor 6. A drive gear 62 is fixedly installed at one end of the first rotating rod 61. A second rotating rod 63 is rotatably installed at the other end of the U-shaped base frame 1. A driven gear 64 is fixedly installed at one end of the second rotating rod 63. The drive gear 62 and the driven gear 64 are meshed and connected. The other end of the second rotating rod 63 is fixedly connected to the other end of the lead screw 56. When the drive motor 6 is turned on, the drive shaft of the drive motor 6 can make the first rotating rod 61 rotate. The first rotating rod 61 can make the drive gear 62 rotate. The drive gear 62 can drive the driven gear 64 to rotate. The driven gear 64 can make the lead screw 56 rotate through the second rotating rod 63.

[0051] A support base 57 is fixedly installed at one end of the L-shaped movable frame 54. One end of the support base 57 is in movable contact with the inner wall of the U-shaped base frame 1. By setting the support base 57, the support base 57 can support the end of the L-shaped movable frame 54 and improve stability. A guide groove 58 is opened on the inner wall of the U-shaped base frame 1. A guide block 59 is fixedly installed at one end of the movable seat 55. The guide block 59 is slidably installed at one end of the guide groove 58. By setting the guide groove 58 and the guide block 59, the guide block 59 can slide horizontally along the inner wall of the guide groove 58, so that the movable seat 55 can move horizontally.

[0052] The power switching assembly 7 includes two L-shaped limiting rods 71. Each of the two connecting shafts 53 has a limiting hole 72 at one end. One end of the L-shaped limiting rod 71 is movably inserted into the inner wall of the limiting hole 72. By setting the L-shaped limiting rod 71 and the limiting hole 72, when the L-shaped limiting rod 71 is inserted into the limiting hole 72, the connecting shaft 53 can be connected to the L-shaped moving frame 54. When the L-shaped limiting rod 71 is separated from the limiting hole 72, the L-shaped moving frame 54 can be disengaged from the connecting shaft 53. This causes the piston disc 51 inside the suction can 2 or injection can 3 to move horizontally. One end of the L-shaped moving frame 54 has two sliding grooves 73, and a slider 74 is slidably provided at one end of each of the two sliding grooves 73. The other end of the L-shaped limiting rod 71 is fixedly connected to one side of the slider 74. By setting the sliding grooves 73 and the slider 74, the slider 74 is driven to slide vertically in the sliding grooves 73. The slider 74 can make the L-shaped limiting rod 71 rise and fall synchronously, so that the L-shaped limiting rod 71 can be inserted into or separated from the limiting hole 72.

[0053] Two threaded rods 75 are rotatably mounted on one end of the L-shaped movable frame 54. The threaded rods 75 pass through the slide groove 73 and are rotatably connected to the slider 74 by threads. A second knob 76 is fixedly provided on one end of each of the two threaded rods 75. By rotating the second knob 76, the threaded rods 75 can be rotated, and the threaded rods 75 can drive the slider 74 to slide vertically in the slide groove 73.

[0054] Working principle: During the thrombus aspiration process, medical personnel first put the end of the catheter inserted into the blood vessel onto the outside of the cannula 32 and seal it with sealing tape.

[0055] Subsequently, the medical staff rotated a second knob 76 on the upper part of the L-shaped moving frame 54. The second knob 76 caused the threaded rod 75 to rotate, and the threaded rod 75 drove the slider 74 to slide downward. The slider 74 caused the L-shaped limiting rod 71 to descend synchronously, so that the L-shaped limiting rod 71 was disengaged from the limiting hole 72. At this time, the connecting shaft 53 at one end of the injection can 3 was disengaged from the L-shaped moving frame 54.

[0056] Next, the medical staff turns on the drive motor 6. The drive shaft of the drive motor 6 rotates the drive gear 62 through the first rotating rod 61. The drive gear 62 rotates the second rotating rod 63 through the driven gear 64. The second rotating rod 63 rotates the lead screw 56. The lead screw 56 drives the moving seat 55 to move horizontally toward one end of the drive motor 6. The moving seat 55 pulls the piston plate 51 in the suction canister 2 to move horizontally synchronously through the L-shaped moving frame 54, the connecting shaft 53 and the piston rod 52. During this process, the thrombus suction action is performed. The negative pressure formed is used to suction the thrombus in the thrombus segment of the blood vessel through the suction tube 21 and the catheter. The suctioned thrombus enters the suction canister 2 through the catheter and the suction tube 21 (if the thrombus cannot be suctioned in one go, the drive motor 6 is controlled to rotate in both directions to drive the piston plate 51 to reciprocate to achieve multiple suctions). This conveniently realizes the automatic thrombus suction operation, thereby effectively improving the convenience of thrombus suction operation and reducing the workload of medical staff during surgery.

[0057] During the thrombolysis process, medical personnel disengage the connecting shaft 53 at one end of the aspiration canister 2 from the L-shaped moving frame 54, and simultaneously open the sealing plug at the upper end of the infusion tube 34. The opening of the thrombolytic drug bottle is then placed over the upper end of the infusion tube 34. The moving seat 55 is then driven to move horizontally toward one end of the drive motor 6. The moving seat 55 pulls the piston disc 51 inside the injection canister 3 to move horizontally in sync through the L-shaped moving frame 54, the connecting shaft 53, and the piston rod 52. As the piston disc 51 moves horizontally, the negative pressure generated by the piston disc 51 draws the thrombolytic drug in the thrombolytic drug bottle. The thrombolytic drug enters the interior of the injection canister 3 through the infusion tube 34.

[0058] After the thrombolytic agent enters the injection vessel 3, the sealing plug at the upper end of the injection tube 34 is closed. Then, the first knob 481 is turned, which causes the worm gear 48 to rotate. The worm gear 48 rotates the rotating shaft 46 through the worm wheel 49. The rotating shaft 46 rotates the rotating ring 43 through the connecting rod 47, so that the movable slot 44 and the fixed slot 42 are aligned. At this time, the cavity 33 is unobstructed. Then, the drive shaft of the drive motor 6 is rotated in the opposite direction. At this time, the movable seat 55 moves horizontally towards the end away from the drive motor 6. The piston disc 51 in the injection vessel 3 squeezes the thrombolytic agent. The squeezed thrombolytic agent enters the thrombus segment of the blood vessel through the injection tube 31, the cavity 33 and the catheter to dissolve the thrombus. This conveniently realizes the automatic injection of thrombolytic agent during the thrombolysis process, thereby effectively improving the convenience of thrombolysis operation and further reducing the workload of medical personnel during surgery.

[0059] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A thrombectomy device, comprising a thrombectomy device (10), characterized in that, The thrombectomy device (10) includes a U-shaped base frame (1), a suction can (2) and an injection can (3). Two support rings (11) are fixedly installed on the inner wall of the U-shaped base frame (1). The end of the suction can (2) is in contact with the inner wall of the two support rings (11). The injection can (3) is fixedly installed on the upper part of the suction can (2). A suction tube (21) is fixedly provided at one end of the suction can (2), an injection tube (31) is fixedly provided at one end of the injection can (3), a sleeve (32) is fixedly provided at one end of the injection tube (31), one end of the sleeve (32) is fixedly connected to one end of the suction can (2), the sleeve (32) is sleeved on the outside of the suction tube (21), a cavity (33) is formed between the inner wall of the sleeve (32) and the outer wall of the suction tube (21), and an injection tube (34) is fixedly provided at one end of the injection can (3). The other end of the sleeve (32) is provided with a flow channel control component (4), the U-shaped base frame (1) is provided with a push-pull mechanism (5), and the push-pull mechanism (5) is provided with a power switching component (7). The push-pull mechanism (5) includes two piston discs (51), one of which is movably disposed on the inner wall of one end of the suction can (2), and the other is movably disposed on the inner wall of one end of the injection can (3). A piston rod (52) is fixedly disposed on one side of each of the two piston discs (51). One end of one piston rod (52) is slidably connected to the other end of the suction can (2), and one end of the other piston rod (52) is slidably connected to the other end of the injection can (3). A connecting shaft (53) is fixedly disposed on one end of each of the two piston rods (52). An L-shaped moving frame (54) is slidably disposed above the U-shaped base frame (1), and the two connecting shafts (53) are movably disposed on one end of the L-shaped moving frame (54). One end of the U-shaped base frame (1) is slidably provided with a movable seat (55), one end of the movable seat (55) is fixedly connected to the other end of the L-shaped movable frame (54), and one end of the U-shaped base frame (1) is rotatably installed with a lead screw (56), one end of the lead screw (56) is rotatably connected to the movable seat (55) by a thread. A drive motor (6) is fixedly installed at the other end of the U-shaped base frame (1). A first rotating rod (61) is fixedly installed at the drive output end of the drive motor (6). A drive gear (62) is fixedly installed at one end of the first rotating rod (61). A second rotating rod (63) is rotatably installed at the other end of the U-shaped base frame (1). A driven gear (64) is fixedly installed at one end of the second rotating rod (63). The drive gear (62) and the driven gear (64) are meshed and connected. The other end of the second rotating rod (63) is fixedly connected to the other end of the lead screw (56). The power switching assembly (7) includes two L-shaped limiting rods (71), and each of the two connecting shafts (53) has a limiting hole (72) at one end. One end of the L-shaped limiting rod (71) is movably inserted into the inner wall of the limiting hole (72). One end of the L-shaped moving frame (54) has two sliding grooves (73), and each of the two sliding grooves (73) has a slider (74) slidably disposed at one end. The other end of the L-shaped limiting rod (71) is fixedly connected to one side of the slider (74).

2. The thrombectomy device as described in claim 1, characterized in that, The flow channel control component (4) includes a fixed ring (41), which is fixedly disposed on the inner wall of the sleeve (32) away from the injection tube (31). The outer wall of the fixed ring (41) is provided with a plurality of fixed slots (42) arranged in a ring array. A rotating ring (43) is provided on one side of the fixed ring (41). The outer wall of the rotating ring (43) is provided with a plurality of movable slots (44) arranged in a ring array. The movable slots (44) are offset from the fixed slots (42).

3. The thrombectomy device as described in claim 2, characterized in that, A fixed sleeve (45) is fixedly installed at the axial center of the fixed ring (41), and a rotating shaft (46) is rotatably installed at the axial center of the fixed sleeve (45). Two connecting rods (47) are fixedly installed at one end of the rotating shaft (46), and one end of the two connecting rods (47) is fixedly connected to the inner wall of the rotating ring (43).

4. The thrombectomy device as described in claim 3, characterized in that, A worm (48) is rotatably installed inside the fixed sleeve (45), and a worm wheel (49) is fixedly provided at the other end of the rotating shaft (46). The worm (48) and the worm wheel (49) are meshed and connected. A first knob (481) is fixedly provided at one end of the worm (48).

5. A thrombectomy device as described in claim 1, characterized in that, One end of the L-shaped movable frame (54) is fixedly provided with a support base (57), one end of the support base (57) is in movable contact with the inner wall of the U-shaped base frame (1), the inner wall of the U-shaped base frame (1) is provided with a guide groove (58), one end of the movable seat (55) is fixedly provided with a guide block (59), and the guide block (59) is slidably provided at one end of the guide groove (58).

6. The thrombectomy device as described in claim 1, characterized in that, Two threaded rods (75) are rotatably mounted on one end of the L-shaped movable frame (54). The threaded rods (75) pass through the slide groove (73) and are rotatably connected to the slider (74) by threads. A second knob (76) is fixedly provided on one end of each of the two threaded rods (75).

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