Thrombus aspiration device

Abstract

The utility model belongs to the technical field of medical instruments, and discloses a thrombus aspiration device which comprises an outer sheath tube assembly, an inner sheath tube assembly, an electric aspiration tube assembly, a pressure regulating handle assembly, a thrombus filtering cavity assembly and a manual aspiration handle assembly, the outer sheath tube assembly is provided with a Y-shaped connector, and a thrombus breaking device can clean blocked thrombus out through the Y-shaped connector; the inner sheath tube assembly can be coaxially connected with the outer sheath tube assembly in a sealed mode. During electric suction, the outer sheath tube assembly, the pressure regulating handle assembly, the thrombus filtering cavity assembly and the electric suction tube assembly are sequentially and fixedly connected end to end in a sealed mode. During manual aspiration, the outer sheath tube assembly, the thrombus filtering cavity assembly and the manual aspiration handle assembly are sequentially connected end to end in a sealed mode. The thrombus aspiration device provides two aspiration connection modes for a doctor clinically, so that the doctor can select according to actual operation conditions conveniently, thrombus blockage can be prevented, and the thrombus aspiration device is convenient to use.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical apparatus and instruments, especially relates to a thrombus suction device. BACKGROUND

[0002] Thrombosis disease is a kind of disease related to the abnormal coagulation of blood in blood vessel, forms thrombus, and further causes partial or complete occlusion of blood vessel, and further causes corresponding tissue organ ischemia, hypoxia, necrosis or congestion, edema.The peripheral thrombus suction catheter is a kind of medical apparatus for the thrombus suction in human peripheral blood vessel.It is guided under the monitoring of image equipment, and then the other end of the catheter is connected with electric suction device or manual suction device, the thrombus is suctioned out of human body from blood vessel by the negative pressure generated by suction device, to restore blood circulation.This operation method has the characteristics of small trauma and quick recovery.

[0003] The existing thrombus suction device is not accurate in the control of suction amount, and in actual use, too much blood of the patient can be suctioned at a time, causing excessive blood loss of the patient;because the volume of negative pressure cavity is large and the volume in the catheter is small, the doctor needs to continuously pinch the handle in the process of manual suction in clinical use, so that the thrombus flows into the negative pressure cavity, and the doctor consumes a lot of physical strength.If the doctor pauses the suction in the process of connecting the electric suction equipment, the suction equipment needs to be specially turned off / started, and the operation is cumbersome.The existing product catheter can cause the thrombus to be stuck in the catheter in the process of sucking thrombus due to the diameter limitation of the catheter, needs to be taken out for dredging, and affects the operation process. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of thrombus suction device to solve the above technical problems.

[0005] To achieve the above object, the specific technical scheme of the utility model of a kind of thrombus suction device is as follows:

[0006] A kind of thrombus suction device, including outer sheath tube assembly, inner sheath tube assembly, electric suction pipe assembly, pressure regulating handle assembly, thrombus filter cavity assembly, manual suction handle assembly, the end of the outer sheath tube assembly is universal joint design, can be sealed with inner sheath tube assembly, pressure regulating handle assembly, thrombus filter cavity assembly Connection, the outer sheath tube assembly has Y type interface, thrombus is cleaned out by Y type interface by thrombus device;The inner sheath tube assembly can be coaxially sealed with the outer sheath tube assembly Connection;Electric suction, the outer sheath tube assembly, pressure regulating handle assembly, thrombus filter cavity assembly, electric suction pipe assembly are sequentially fixed connection;Manual suction, the outer sheath tube assembly, thrombus filter cavity assembly, manual suction handle assembly are sequentially sealed connection.

[0007] Further, the outer sheath assembly includes a buckle button one, a luer cap, an outer sheath seat and an outer sheath, the buckle button one is assembled with the end of the outer sheath seat, the outer sheath seat can be sealedly connected with the pressure regulating handle assembly or the thrombus filtering cavity assembly through the buckle button one, the buckle button one is used for locking the connection, the front end of the outer sheath seat is fixedly connected with the outer sheath, the side of the outer sheath seat has a Y-shaped interface, and the luer cap is sealedly connected with the Y-shaped interface.

[0008] Further, the inner sheath assembly includes an inner sheath seat and an inner sheath, the inner sheath seat is fixedly connected with the inner sheath, the inner sheath can be inserted into the outer sheath, the inner sheath seat can be sealedly connected with the end of the outer sheath seat, the end of the inner sheath seat is a universal luer interface, and the front end of the inner sheath adopts a tapered and smooth design.

[0009] Further, the electric suction tube assembly includes a suction tube universal connector one, a suction tube, a suction tube universal connector two and a pagoda connector, the suction tube universal connector one is sealedly connected with an external negative pressure suction device, the two ends of the suction tube are respectively sealedly connected with the suction tube universal connector one and the suction tube universal connector two, one end of the pagoda connector is sealedly connected with the front end of the suction tube universal connector two, and the other end has a sealing ring one.

[0010] Further, the pressure regulating handle assembly includes a buckle button two, a sealing connector female one, a pressure regulating roller, a pressure regulating handle, a sealing connector male one and a plastic hose one, the buckle button two is fixedly installed at the front end of the pressure regulating handle through the sealing connector female one, the sealing connector male one is fixedly installed at the rear end of the pressure regulating handle, the plastic hose one is arranged in the pressure regulating handle and fixedly connected with the sealing connector female one and the sealing connector male one at two ends, the pressure regulating roller can roll on the pressure regulating handle, the internal space of the plastic hose one at the position is reduced by extruding the plastic hose one, so that the negative pressure passing through the position is changed, the end of the sealing connector male one has a sealing ring two, and the end of the sealing connector male one can be fixedly connected with the thrombus filtering cavity assembly.

[0011] Further, the thrombus filtering cavity assembly comprises a buckle button three, a sealing connector female two, a plastic hose two, a thrombus filtering cavity cover, a thrombus filtering cavity, a plastic hose three and a sealing wire connector male two, the sealing connector female two and the plastic hose two are fixedly connected in a sealing mode, the plastic hose two and the thrombus filtering cavity cover are fixedly connected in a sealing mode, the thrombus filtering cavity has a sealing ring three at the end, the thrombus filtering cavity cover and the end of the thrombus filtering cavity are connected in a sealing mode through the sealing ring three, the thrombus filtering cavity cover is internally provided with a filter screen structure, thrombus can be blocked at the filter screen structure, and blood can flow through the next assembly without being blocked, the thrombus filtering cavity is connected in a sealing mode with the end of the sealing wire connector male through the plastic hose three, and the sealing wire connector male has a sealing ring four at the front end, and can be connected in a sealing mode with the electric suction pipe assembly.

[0012] Further, the thrombus filtering cavity cover and the thrombus filtering cavity are provided with anti-skid lines on the surfaces.

[0013] Further, the manual suction handle assembly comprises a locking button, a flow limiting button, an outer handle, an inner handle, a spring, a liquid storage cavity, a sealing plug, a plastic hose four, a one-way valve one, a plastic hose five, a sealing cap, a Y-shaped adapter, a one-way valve two and a waste liquid bag, the inner handle is arranged in the outer handle, the inner handle is provided with the spring and the sealing plug at the front end, the spring and the sealing plug are arranged in the liquid storage cavity at the front end of the outer handle, the inner handle can be pulled to generate negative pressure in the liquid storage cavity, one way of the front end of the liquid storage cavity is connected with the plastic hose four, the plastic hose four is connected with the one-way valve one, the one-way valve one is connected with the plastic hose five, the plastic hose five is connected with the Y-shaped adapter, the side interface of the Y-shaped adapter is connected in a sealing mode with the sealing cap, and the Y-shaped adapter has a sealing ring five at the end, and can be connected in a sealing mode with the thrombus filtering cavity assembly; the other way of the front end of the liquid storage cavity is fixedly connected with the one-way valve two, the one-way valve two is fixedly connected with the waste liquid bag; the locking button and the flow limiting button are fixedly arranged on the outer handle, the locking button is used for hooking the inner handle in the suction process, and the flow limiting button is used for pushing a stopper to limit the stroke of the inner handle, so that the amount of extracted blood is adjusted.

[0014] The thrombus suction device has the following advantages.

[0015] The thrombus suction device provides two suction connection modes for doctors in the clinic, and doctors can select according to actual operation conditions.

[0016] The outer sheath assembly is provided with a Y-shaped interface, and when thrombus is blocked in the inner sheath, the blocked thrombus can be cleaned out through the Y-shaped interface by using a thrombus crushing device.

[0017] The pressure regulating handle assembly can facilitate the doctor to adjust the required pressure of thrombus aspiration in operation, the thrombus filtering cavity assembly can filter the thrombus, reduce the blockage in operation, save the operation time, and the thrombus in the filtering cavity can be cleaned out at any time and conveniently;

[0018] The manual suction handle assembly can accurately control the blood volume of each suction, reduce the excessive blood loss of the patient in operation, and the tail locking structure can save the doctor's physical strength in actual clinical use. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structure schematic view of the thrombus aspiration device of the utility model;

[0020] Figure 2 It is a structure schematic view of the outer sheath tube assembly of the utility model;

[0021] Figure 3 It is a structure schematic view of the inner sheath tube assembly of the utility model;

[0022] Figure 4 It is a structure schematic view of the electric suction tube assembly of the utility model;

[0023] Figure 5 It is a structure schematic view of the pressure regulating handle assembly of the utility model;

[0024] Figure 6 It is an internal structure schematic view of the pressure regulating handle assembly of the utility model;

[0025] Figure 7 It is a structure schematic view of the thrombus filtering cavity assembly of the utility model;

[0026] Figure 8 It is a structure schematic view of the manual suction handle assembly of the utility model;

[0027] Marked in the figure: 1, sheath tube assembly; 11, buckle button one; 12, luer cap; 13, sheath tube seat; 131, Y type interface; 14, sheath tube; 2, inner sheath tube assembly; 21, inner sheath tube seat; 22, inner sheath tube; 3, electric suction tube assembly; 31, suction tube universal joint one; 32, suction tube; 33, suction tube universal joint two; 34, pagoda connector; 341, sealing ring one; 4, pressure regulating handle assembly; 41, buckle button two; 42, sealing connector female one; 43, pressure regulating roller; 44, pressure regulating handle; 45, sealing connector male one; 451, sealing ring two; 46, plastic hose one; 5, thrombus filter cavity assembly; 51, buckle button three; 52, sealing connector female two; 53, plastic hose two; 54, thrombus filter cavity cover; 55, thrombus filter cavity; 551, sealing ring three; 56, plastic hose three; 57, sealing wire connector male two; 571, sealing ring four; 6, manual suction handle assembly; 61, locking button; 62, flow limiting button; 63, outer handle; 64, inner handle; 65, spring; 66, liquid storage cavity; 67, sealing plug; 68, plastic hose four; 69, one-way valve one; 610, plastic hose five; 611, sealing cap; 612, Y type adapter; 6121, sealing ring five; 613, one-way valve two; 614, waste liquid bag. DETAILED DESCRIPTION

[0028] In order to better understand the purpose, structure and function of the utility model, the utility model a kind of thrombus suction device is further described in detail below in conjunction with drawings.

[0029] As Figure 1 The utility model a kind of thrombus suction device, including sheath tube assembly 1, inner sheath tube assembly 2, electric suction tube assembly 3, pressure regulating handle assembly 4, thrombus filter cavity assembly 5, manual suction handle assembly 6.

[0030] The end of sheath tube assembly 1 is designed as a universal joint, which can be sealedly connected with inner sheath tube assembly 2, pressure regulating handle assembly 4 and thrombus filter cavity assembly 5. Sheath tube assembly has a Y type interface 131, which can be used to clean the thrombus blocked in the inner sheath tube by using a thrombus breaking device through the Y type interface 131 when the thrombus is blocked in the inner sheath tube.

[0031] Inner sheath tube assembly 2 can be coaxially and sealably connected with sheath tube assembly 1. Inner sheath tube assembly 2 is used for puncture, and sheath tube assembly 1 is used to remain in the human body to provide a suction passage and be connected with other assemblies to realize suction.

[0032] When electric suction is performed, sheath tube assembly 1, pressure regulating handle assembly 4, thrombus filter cavity assembly 5 and electric suction tube assembly 6 are sequentially and sealably fixedly connected,

[0033] During manual aspiration, the outer sheath assembly 1, the thrombus filtering chamber assembly 5, and the manual aspiration handle assembly 6 are sequentially and sealed end to end.

[0034] The pressure regulating handle assembly 4 is used to adjust the magnitude of the negative pressure suction.

[0035] The thrombus filtration chamber assembly 5 is used to filter and store thrombi to prevent them from clogging subsequent tubing.

[0036] The electric suction tube assembly 6 is used for electric suction.

[0037] The manual aspiration handle assembly 6 is used to manually aspirate thrombi when it is inconvenient for doctors to use an electric aspiration device.

[0038] like Figure 2 As shown, the outer sheath assembly 1 includes a snap button 11, a Luer cap 12, an outer sheath seat 13, and an outer sheath 14. The snap button 11 is assembled to the end of the outer sheath seat 13. The outer sheath seat 13 can be sealed to the pressure regulating handle assembly 4 or the thrombus filtering chamber assembly 5 through the snap button 11. The snap button 11 can lock the connection so that it will not come loose during use. When it is necessary to unseal, the snap button 11 can be pressed down to disconnect the sealed connection with other components. The front end of the outer sheath seat 13 is tightly fixed to the outer sheath 14. The side of the outer sheath seat 13 has a Y-shaped interface 131. The Luer cap 12 is sealed to the Y-shaped interface 131. When there is a thrombus blockage in the outer sheath 14, the thrombus in the outer sheath 14 can be cleared by unscrewing the Luer cap 12 and passing through the Y-shaped interface 131 through which the plugging device passes.

[0039] like Figure 3 As shown, the inner sheath assembly 2 includes an inner sheath seat 21 and an inner sheath 22. The inner sheath seat 21 and the inner sheath 22 are tightly and fixedly connected. The inner sheath 22 can extend into the outer sheath 14. The inner sheath seat 21 can be sealed and connected to the end of the outer sheath seat 13. The end of the inner sheath seat 21 is a universal Luer interface, which facilitates the connection of the irrigation assembly to irrigate the inside of the inner sheath during surgery. The front end of the inner sheath 22 adopts a tapered and smooth design, which can reduce the scratching of the blood vessel wall inside the blood vessel.

[0040] like Figure 4 As shown, the electric suction tube assembly 3 includes a universal suction tube connector 31, a suction tube 32, a universal suction tube connector 33, and a pagoda connector 34. The universal suction tube connector 31 is sealed to an external negative pressure suction device. Both ends of the suction tube 32 are sealed to the universal suction tube connector 31 and the universal suction tube connector 33, respectively. One end of the pagoda connector 34 is sealed to the front end of the universal suction tube connector 34, and the other end has a sealing ring 341 for sealing connection with other components.

[0041] like Figure 5 Figure 6As shown, the pressure regulating handle assembly 4 includes a snap button two 41, a female sealing connector one 42, a pressure regulating roller 43, a pressure regulating handle 44, a male sealing connector one 45, and a plastic hose one 46. The snap button two 41 is fixedly installed at the front end of the pressure regulating handle 44 through the female sealing connector one 42. The male sealing connector one 45 is fixedly installed at the rear end of the pressure regulating handle 44. The plastic hose one 46 is arranged in the pressure regulating handle 44 and fixedly connected with the female sealing connector one 42 and the male sealing connector one 45 at both ends. The pressure regulating roller 43 can roll on the pressure regulating handle 44. By extruding the plastic hose one 46, the internal space of the plastic hose one 46 at this part is reduced to change the negative pressure passing through this part. The male sealing connector one 45 has a sealing ring two 451 at the end. The end of the male sealing connector one 45 can be fixedly connected with the thrombus filtering cavity assembly 5.

[0042] As shown, Figure 7 The thrombus filtering cavity assembly 5 includes a snap button three 51, a female sealing connector two 52, a plastic hose two 53, a thrombus filtering cavity cover 54, a thrombus filtering cavity body 55, a plastic hose three 56, and a male sealing wire connector two 57. The female sealing connector two 52 and the plastic hose two 53 are sealingly and fixedly connected. The plastic hose two 53 and the thrombus filtering cavity cover 54 are sealingly and fixedly connected. The thrombus filtering cavity body 55 has a sealing ring three 551 at the end. The thrombus filtering cavity cover 54 and the thrombus filtering cavity body 55 are sealingly connected through the sealing ring three 551. The thrombus filtering cavity cover 54 has a filter screen structure in it, which can block the thrombus at this part, and the blood can flow through the next assembly without being blocked. The thrombus filtering cavity cover 54 and the thrombus filtering cavity body 55 have anti-slip lines on the surfaces, which facilitate the doctor to separate the two parts to clean the excess thrombus during the operation. The thrombus filtering cavity body 55 is sealingly connected with the end of the male sealing wire connector two 57 through the plastic hose three 56. The male sealing wire connector two 57 has a sealing ring four 571 at the front end, which can be sealingly connected with the electric suction tube assembly 3.

[0043] As shown, Figure 8As shown, the manual suction handle assembly 6 includes a locking button 61, a flow limiting button 62, an outer handle 63, an inner handle 64, a spring 65, a liquid storage cavity 66, a sealing plug 67, a plastic hose four 68, a one-way valve one 69, a plastic hose five 610, a sealing cap 611, a Y-shaped adapter 612, a one-way valve two 613, and a waste liquid bag 614. The inner handle 64 is arranged in the outer handle 63, and the inner handle 64 has the spring 65 and the sealing plug 67 at the front end. The spring 65 and the sealing plug 67 are located in the liquid storage cavity 66 at the front end of the outer handle 63. Pulling the inner handle 64 can generate negative pressure in the liquid storage cavity 66. The front end of the liquid storage cavity 66 is connected with the plastic hose four 68 in one way. The plastic hose four 68 is connected with the one-way valve one 69. The one-way valve one 69 is connected with the plastic hose five 610. The plastic hose five 610 is connected with the Y-shaped adapter 612. The side interface of the Y-shaped adapter 612 is sealingly connected with the sealing cap 611. The Y-shaped adapter 612 has a sealing ring five 6121 at the end, which can be sealingly connected with the thrombus filtering cavity assembly 5. The front end of the liquid storage cavity 66 is connected with the one-way valve two 613 in another way. The one-way valve two 613 is fixedly connected with the waste liquid bag 614. The locking button 61 and the flow limiting button 62 are fixedly installed on the outer handle 63. The locking button 61 is used for hooking the inner handle 64 during the suction process, so that the doctor does not need to hold the inner handle 64 for a long time, thereby saving energy. The flow limiting button 62 is used for pushing a blocking block to limit the stroke of the inner handle 64, thereby adjusting the amount of extracted blood, which can reduce the amount of blood loss during the operation of the patient.

[0044] When the inner handle 64 is pulled to the left, the liquid is sucked into the liquid storage cavity 66 through the inner hole of the Y-shaped adapter 612 in one way. At this time, the spring 65 is in a compressed state. After the inner handle 64 is released, the spring 65 releases the compression force, thereby pushing the sealing plug 67 to the right and pushing the liquid into the waste liquid bag 614 through the one-way valve two 613.

[0045] In use: during the thrombus suction operation, the positioning guide wire reaches the thrombus position in advance. The inner sheath tube assembly 2 of the thrombus suction device is arranged in the outer sheath tube assembly 3. At this time, the inner sheath tube seat 21 is sealingly connected with the outer sheath tube seat 13. The tail of the inner sheath tube seat 21 is a universal luer interface. The Y-shaped interface 131 of the outer sheath tube seat 13 is the same universal interface. During the actual clinical use, the inner wall, the outer wall of the inner sheath tube 22, and the inner wall of the outer sheath tube 14 can be flushed through the universal interface. After the flushing is completed, part of the positioning guide wire can enter the blood vessel to reach the thrombus position, and then the positioning guide wire can be pulled out of the human body. The inner sheath tube assembly 2 is separated from the outer sheath tube assembly 1. The tail of the outer sheath tube 14 can be a straight head or a bent head, so that the doctor can conveniently and quickly extract the thrombus from the blood vessels of different thicknesses and different parts of the blood vessels.

[0046] When the thrombus is aspirated by using the hospital negative pressure suction device, the outer sheath tube assembly 1, the pressure regulating handle assembly 4, the thrombus filtering cavity assembly 5, the electric suction tube assembly 3 and the hospital negative pressure device are sequentially and end-to-end sealedly connected, so that the thrombus is aspirated.

[0047] When the thrombus is aspirated by using the manual suction handle assembly 6, the manual suction handle assembly 6 can be sequentially and sealedly connected with the thrombus filtering cavity assembly 5 and the outer sheath tube assembly 1; first, the sealing cap 611 is opened, the blood is automatically flowed out by using the blood pressure, when the blood reaches the Y-shaped adapter 612, the sealing cap 611 is covered, the inner handle 64 is pulled to drive the sealing plug 67 to move in the liquid storage cavity 66, the negative pressure is formed in the liquid storage cavity 66, and then the thrombus and the blood are aspirated; when the inner handle 64 is pulled to the left, the liquid is sucked into the liquid storage cavity through the inner hole of the Y-shaped adapter 131, at this time, the spring 65 is in a compressed state, at this time, the locking button 61 can be pushed to be hooked on the inner handle 64, so that the doctor does not need to hold the inner handle 64 for a long time, and thus the strength is saved; when the flow limiting button 62 is pushed, the manual suction device can extract 10 or 30 ml of blood at a time, so that the doctor can accurately control the bleeding amount in the operation, and the bleeding amount of the patient is reduced; after the inner handle 64 is released, the spring 65 releases the compression force, so that the sealing plug 67 is pushed to the right, and the liquid is pushed into the waste liquid bag 614 through the one-way valve two 613.

[0048] It can be understood that the utility model is described through some embodiments, and the person skilled in the art knows that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the utility model.

Claims

1. A thrombus aspiration device, characterized by, The utility model provides a kind of thrombus removal device, including outer sheath assembly (1), inner sheath assembly (2), electric suction pipe assembly (3), pressure regulating handle assembly (4), thrombus filter cavity assembly (5), manual suction handle assembly (6), the end of the outer sheath assembly (1) is general joint design, can be connected with inner sheath assembly (2), pressure regulating handle assembly (4), thrombus filter cavity assembly (5) sealing, the outer sheath assembly (1) has Y type interface (131) on it, thrombus blocked can be cleaned out by Y type interface (131) of broken thrombus device;The inner sheath assembly (2) can be coaxially sealed with outer sheath assembly (1) Connection;When electric suction, the outer sheath assembly (1), pressure regulating handle assembly (4), thrombus filter cavity assembly (5), electric suction pipe assembly (3) are sequentially fixed connection of end sealing;When manual suction, the outer sheath assembly (1), thrombus filter cavity assembly (5), manual suction handle assembly (6) are sequentially connected of end sealing.

2. The thrombus aspiration device of claim 1, wherein, The outer sheath assembly (1) includes buckle button one (11), luer cap (12), outer sheath (14) seat (13) and outer sheath (14), the buckle button one (11) is assembled with the end of outer sheath (14) seat (13), the outer sheath (14) seat (13) can be sealed with pressure regulating handle assembly (4) or thrombus filter cavity assembly (5) by buckle button one (11), the buckle button one (11) is used for locking connection, the outer sheath (14) seat (13) front end is fixedly connected with outer sheath (14);The outer sheath (14) seat (13) side has Y type interface (131), the luer cap (12) is sealed with Y type interface (131).

3. The thrombus aspiration device of claim 2, wherein, The inner sheath assembly (2) includes inner sheath seat (21) and inner sheath (22), the inner sheath seat (21) is fixedly connected with inner sheath (22), the inner sheath (22) can be extended into outer sheath (14), the inner sheath seat (21) can be sealed with the end of outer sheath (14) seat (13), the end of inner sheath seat (21) is general luer interface, the front end of inner sheath (22) adopts tapered, smooth design.

4. The thrombus aspiration device of claim 1, wherein, The electric suction pipe assembly (3) includes suction pipe general joint one (31), suction pipe (32), suction pipe general joint two (33) and pagoda connector (34), the suction pipe general joint one (31) is sealed with external negative pressure suction device, the both ends of suction pipe (32) are sealed with suction pipe general joint one (31), suction pipe general joint two (33) respectively, the pagoda connector (34) one end is sealed with the front end of suction pipe general joint two (33), and the other end has sealing ring one (341).

5. The thrombus aspiration device of claim 1, wherein, The pressure regulating handle assembly (4) comprises a snap button two (41), a female sealing connector one (42), a pressure regulating roller (43), a pressure regulating handle (44), a male sealing connector one (45) and a plastic hose one (46), the snap button two (41) is fixedly installed at the front end of the pressure regulating handle (44) through the female sealing connector one (42), the male sealing connector one (45) is fixedly installed at the rear end of the pressure regulating handle (44), the plastic hose one (46) is arranged in the pressure regulating handle (44) and fixedly connected with the female sealing connector one (42) and the male sealing connector one (45) at both ends, the pressure regulating roller (43) can roll on the pressure regulating handle (44), by extruding the plastic hose one (46), the internal space of the plastic hose one (46) is reduced to change the negative pressure size passing through this part, the male sealing connector one (45) has a sealing ring two (451) at the end, and the end of the male sealing connector one (45) can be fixedly connected with the thrombus filtering cavity assembly (5).

6. The thrombus aspiration device of claim 1, wherein, The thrombus filtering cavity assembly (5) comprises a snap button three (51), a female sealing connector two (52), a plastic hose two (53), a thrombus filtering cavity cover (54), a thrombus filtering cavity body (55), a plastic hose three (56) and a male sealing wire connector two (57), the female sealing connector two (52) and the plastic hose two (53) are sealingly and fixedly connected, the plastic hose two (53) and the thrombus filtering cavity cover (54) are sealingly and fixedly connected, the thrombus filtering cavity body (55) has a sealing ring three (551) at the end, the thrombus filtering cavity cover (54) and the thrombus filtering cavity body (55) are sealingly connected through the sealing ring three (551) at the ends, the thrombus filtering cavity cover (54) has a filter screen structure in it, which can block thrombus here, and blood can flow through the next assembly without being blocked, the thrombus filtering cavity body (55) is sealingly connected with the male sealing wire connector two at the front end through the plastic hose three (56), and the male sealing wire connector two has a sealing ring four (571) at the front end, which can be sealingly connected with the electric suction tube assembly (3).

7. The thrombus aspiration device of claim 6, wherein, The thrombus filtering cavity cover (54) and the thrombus filtering cavity body (55) are provided with anti-skid lines on the surfaces.

8. The thrombus aspiration device of claim 6, wherein, The manual suction handle assembly (6) comprises a locking button (61), a flow limiting button (62), an outer handle (63), an inner handle (64), a spring (65), a liquid storage cavity (66), a sealing plug (67), a plastic hose four (68), a one-way valve one (69), a plastic hose five (610), a sealing cap (611), a Y-shaped adapter (612), a one-way valve two (613) and a waste liquid bag (614). The inner handle (64) is arranged in the outer handle (63), and the front end of the inner handle (64) is provided with the spring (65) and the sealing plug (67). The spring (65) and the sealing plug (67) are located in the liquid storage cavity (66) at the front end of the outer handle (63). Pulling the inner handle (64) can generate negative pressure in the sealing plug (67) in the liquid storage cavity (66). The front end of the liquid storage cavity (66) is connected with the plastic hose four (68) in one way. The plastic hose four (68) is connected with the one-way valve one (69). The one-way valve one (69) is connected with the plastic hose five (610). The plastic hose five (610) is connected with the Y-shaped adapter (612). The side interface of the Y-shaped adapter (612) is sealingly connected with the sealing cap (611). The Y-shaped adapter (612) is provided with a sealing ring five (6121) at the tail end, which can be sealingly connected with the thrombus filtering cavity assembly (5). The front end of the liquid storage cavity (66) is fixedly connected with the one-way valve two (613) in another way. The one-way valve two (613) is fixedly connected with the waste liquid bag (614). The locking button (61) and the flow limiting button (62) are fixedly installed on the outer handle (63). The locking button (61) is used for hooking the inner handle (64) during the suction process. The flow limiting button (62) is used for pushing the stop block to limit the stroke of the inner handle (64), so as to adjust the amount of extracted blood.

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