Thrombus aspiration device

Abstract

The utility model discloses a thrombus suction device, comprising a syringe, a push handle, a piston, a valve, a suction catheter, a needle, a drainage catheter, and an auxiliary drainage device. In the utility model, the auxiliary drainage device is provided, and when the sealing joint flows into the inside of the regulating tube from the drainage catheter under the guidance of the manual adjustment of the squeezer, the squeezer squeezes the blood and thrombus inside the regulating tube, prompting the squeezed blood and thrombus inside the regulating tube to be quickly discharged outwards, thereby changing the speed of the blood and thrombus flowing outwards, thereby achieving the goal of quickly discharging the blood and thrombus through the auxiliary drainage device to assist the drainage catheter, thereby reducing the harm caused by the thrombus to the patient, and at the same time, it also solves the problem that the external drainage catheter itself in the original equipment does not have the function of changing the discharge flow rate.

Description

Technical Field

[0001] The utility model relates to the field of medical devices, and in particular to a thrombus aspiration device. Background Art

[0002] During the process of thrombus suction and thrombectomy, negative pressure suction is required in the catheter to suck out the embolic thrombus and reduce the fragmentation and forward movement of the thrombus during the operation.

[0003] A Chinese patent document with publication number CN211634500U discloses a thrombus aspiration device, which improves the efficiency of medical personnel in aspirating thrombi on patients, avoids the tedious disassembly and assembly work between the aspiration catheter and the syringe in traditional thrombus aspiration work, saves rescue time, and improves the service quality of medical personnel;

[0004] When the device fixes the external drainage catheter by means of a fixed buckle, the angle of the thrombus discharged by the external drainage catheter is kept constant, so that the external drainage catheter itself cannot change the discharge flow rate, and the discharge flow rate is affected by the pressure of the extrusion plug, resulting in a problem of maximum efficiency. Utility Model Content

[0005] Therefore, in order to solve the above-mentioned shortcomings, the utility model provides a thrombus aspiration device.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a thrombus suction device, including a syringe, a push handle, a piston, a valve, a suction catheter, a needle, a drainage catheter, and an auxiliary drainage device. The top of the syringe is equipped with a push handle, the bottom of the push handle is equipped with a piston, the piston is slidably connected to the inside of the syringe, the valve is installed at the bottom of the syringe, the bottom of the valve is equipped with a suction catheter, the bottom of the suction catheter is provided with a needle, the drainage catheter is communicated with the right end of the valve, the drainage catheter is connected to the bottom of the auxiliary drainage device, and the auxiliary drainage device is fixed to the right end of the syringe. The auxiliary drainage device includes a mounting shell, a sealing joint, an adjusting tube, a limiting block, and an extruder. The mounting shell is fixed to the right end of the syringe, the sealing joint is installed at the bottom of the mounting shell, the sealing joint is connected to the top of the drainage catheter, the adjusting tube is connected to the top of the sealing joint, the limiting block is fixed to the inside of the mounting shell, the extruder is fixed to the left end of the inside of the mounting shell, and the extruder is movably connected to the top of the adjusting tube.

[0007] As a further solution of the utility model, the extruder includes a rotating handle, a transmission shaft, a transmission sleeve, and a pressure block. The rotating handle is installed at the front end of the transmission shaft. The transmission shaft and the internal part of the transmission sleeve are engaged for transmission. The transmission sleeve is fixed to the bottom of the pressure block, and the pressure block is movably connected to the top of the adjusting tube.

[0008] As a further solution of the present invention, the sealing joint is in the shape of a truncated cone.

[0009] As a further solution of the utility model, the limiting block is arranged on the regulating tube in parallel with the extruder.

[0010] As a further solution of the utility model, the regulating tube is made of silicone material to ensure that the regulating tube can squeeze the water pressure inside the regulating tube under the action of the squeezer, so that the regulating tube can increase the discharge flow rate.

[0011] As a further solution of the utility model, the top of the regulating tube is a crescent-shaped structure.

[0012] As a further solution of the utility model, the rotating handle is arranged at the front end of the transmission sleeve at the same level as the transmission shaft, ensuring that the rotating handle can rotate with the transmission shaft.

[0013] As a further solution of the utility model, the size of the transmission shaft is consistent with the internal size of the transmission sleeve.

[0014] Compared with the prior art, the utility model provides a thrombus aspiration device, which has the following beneficial effects:

[0015] 1. In the utility model, an auxiliary drainage device is provided. When the sealed joint flows into the inside of the regulating tube from the drainage catheter under the guidance of the sealing joint, the squeezer is manually adjusted so that the squeezer squeezes the blood and thrombus inside the regulating tube, prompting the blood and thrombus inside the regulating tube to be quickly discharged outwards, thereby changing the speed at which the blood and thrombus flow outwards, thereby achieving the goal of quickly discharging blood and thrombus through the auxiliary drainage device to assist the drainage catheter, thereby reducing the harm caused by thrombus to the patient, and at the same time, it also solves the problem that the external drainage catheter in the original equipment itself does not have the ability to change the discharge flow rate.

[0016] 2. In the utility model, an extruder is arranged at the upper end of the auxiliary discharge device. By manually rotating the rotating handle, the rotating handle causes the transmission shaft to rotate, and the transmission shaft and the transmission sleeve rotate, so that the transmission sleeve causes the pressurizing block to swing, and the blood and thrombus inside the regulating tube are squeezed by the pressurizing block. Then, by manually adjusting the extruder, the extruder squeezes the blood and thrombus inside the regulating tube, thereby causing the blood and thrombus inside the regulating tube to be quickly discharged outward. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the plane structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the auxiliary drainage device structure of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the side surface of the auxiliary drainage device of the utility model;

[0021] Figure 5 It is a three-dimensional structural schematic diagram of the extruder of the utility model.

[0022] Among them: syringe-1, push handle-2, piston-3, valve-4, suction catheter-5, needle-6, drainage catheter-7, auxiliary drainage device-8, mounting shell-81, sealing joint-82, adjusting tube-83, limiting block-84, extruder-85, rotating handle-851, transmission shaft-852, transmission sleeve-853, pressure block-854. DETAILED DESCRIPTION

[0023] In order to further explain the technical solution of the present utility model, it is described in detail through specific embodiments below.

[0024] See also Figure 1 and Figure 2 , in the embodiment of the utility model:

[0025] A thrombus aspiration device comprises a syringe 1, a push handle 2, a piston 3, a valve 4, a suction catheter 5, a needle 6, a drainage catheter 7, and an auxiliary drainage device 8. The push handle 2 is installed on the top of the syringe 1, the piston 3 is installed on the bottom of the push handle 2, the piston 3 is slidably connected to the inside of the syringe 1, the valve 4 is installed on the bottom of the syringe 1, the suction catheter 5 is installed on the bottom of the valve 4, the needle 6 is provided on the bottom of the suction catheter 5, the drainage catheter 7 is connected to the right end of the valve 4, the drainage catheter 7 is connected to the bottom of the auxiliary drainage device 8, and the auxiliary drainage device 8 is fixed to the right end of the syringe 1.

[0026] See 3 and Figure 4 , in the embodiment of the utility model:

[0027] The auxiliary discharge device 8 includes a mounting shell 81, a sealing joint 82, an adjusting tube 83, a limiting block 84, and an extruder 85. The mounting shell 81 is fixed to the right end of the syringe 1, the sealing joint 82 is installed at the bottom of the mounting shell 81, the sealing joint 82 is connected to the top of the discharge conduit 7, the adjusting tube 83 is connected to the top of the sealing joint 82, the limiting block 84 is fixed to the inside of the mounting shell 81, the extruder 85 is fixed to the left end of the inside of the mounting shell 81, the extruder 85 is movably connected to the top of the adjusting tube 83, the sealing joint 82 is truncated, the limiting block 84 and the extruder 85 are arranged parallel to the adjusting tube 83, the adjusting tube 83 is made of silicone material, to ensure that the adjusting tube 83 can squeeze the water pressure inside the adjusting tube 83 under the action of the extruder 85, so that the adjusting tube 83 can increase the discharge flow rate, and the top of the adjusting tube 83 is a crescent-shaped structure.

[0028] Please refer to 5, in the embodiment of the present utility model:

[0029] The extruder 85 includes a rotating handle 851, a transmission shaft 852, a transmission sleeve 853, and a pressure block 854. The rotating handle 851 is installed at the front end of the transmission shaft 852. The transmission shaft 852 and the transmission sleeve 853 are internally engaged for transmission. The transmission sleeve 853 is fixed to the bottom of the pressure block 854. The pressure block 854 is movably connected to the top of the adjusting tube 83. The rotating handle 851 and the transmission shaft 852 are arranged at the front end of the transmission sleeve 853 at the same level to ensure that the rotating handle 851 can rotate with the transmission shaft 852. The size of the transmission shaft 852 is consistent with the internal size of the transmission sleeve 853.

[0030] refer to Figure 1-Figure 5 When in use, the needle 6 is inserted into the place where the thrombus accumulates, and the push handle 2 is manually pushed, so that the push handle 2 pushes the piston 3 to move along the inside of the syringe 1, prompting the suction catheter 5 to draw blood and part of the thrombus from the needle 6 through the change of air pressure, and under the cooperation of the valve 4 and the drainage catheter 7, the blood and part of the thrombus are drawn into the inside of the auxiliary drainage device 8;

[0031] When the blood, accompanied by the thrombus sealing joint 82, flows from the drainage catheter 7 into the interior of the regulating tube 83 under the guidance of the thrombus sealing joint 82, the rotating handle 851 is manually rotated to make the rotating handle 851 rotate with the transmission shaft 852, and the transmission shaft 852 and the transmission sleeve 853 rotate, so that the transmission sleeve 853 swings with the pressure block 854, and the pressure block 854 squeezes the blood and thrombus inside the regulating tube 83, and then the squeezer 85 is manually adjusted to make the squeezer 85 squeeze the blood and thrombus inside the regulating tube 83, so that the blood and thrombus inside the regulating tube 83 are quickly discharged outward, thereby changing the speed of blood and thrombus outflow, so as to achieve the purpose of quickly discharging blood and thrombus by auxiliary drainage device 8 to assist the drainage catheter 7, thereby reducing the harm caused by thrombus to the patient, and at the same time, it also solves the problem that the external drainage catheter itself in the original equipment does not have the function of changing the discharge flow rate.

[0032] The control method of the present invention is to control by manually starting and closing the switch. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will not explain the control method and wiring arrangement in detail.

[0033] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0034] The above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A thrombus aspiration device, comprising a syringe (1), a push handle (2), a piston (3), a valve (4), a suction catheter (5), a needle (6), a drainage catheter (7), and an auxiliary drainage device (8), wherein the top of the syringe (1) is provided with a push handle (2), the bottom of the push handle (2) is provided with a piston (3), the piston (3) is slidably connected with the inside of the syringe (1), the valve (4) is installed at the bottom of the syringe (1), the bottom of the valve (4) is provided with a suction catheter (5), the bottom of the suction catheter (5) is provided with a needle (6), the drainage catheter (7) is connected with the right end of the valve (4), the drainage catheter (7) is connected with the bottom of the auxiliary drainage device (8), and the auxiliary drainage device (8) is fixed with the right end of the syringe (1); Features: The auxiliary discharge device (8) comprises a mounting shell (81), a sealing joint (82), an adjusting tube (83), a limiting block (84), and an extruder (85); the mounting shell (81) is fixed to the right end of the syringe (1); the sealing joint (82) is installed at the bottom of the mounting shell (81); the sealing joint (82) is connected to the top of the discharge conduit (7); the adjusting tube (83) is connected to the top of the sealing joint (82); the limiting block (84) is fixed to the inside of the mounting shell (81); the extruder (85) is fixed to the left end of the inside of the mounting shell (81); and the extruder (85) is movably connected to the top of the adjusting tube (83).

2. A thrombus aspiration device according to claim 1, characterized in that: The squeezer (85) comprises a rotating handle (851), a transmission shaft (852), a transmission sleeve (853), and a pressure block (854). The rotating handle (851) is installed at the front end of the transmission shaft (852). The transmission shaft (852) and the transmission sleeve (853) are internally engaged for transmission. The transmission sleeve (853) is fixed to the bottom of the pressure block (854). The pressure block (854) is movably connected to the top of the regulating tube (83).

3. The thrombus aspiration device according to claim 1, characterized in that: The sealing joint (82) is in the shape of a truncated cone.

4. The thrombus aspiration device according to claim 1, characterized in that: The limiting block (84) and the extruder (85) are arranged in parallel on the regulating tube (83).

5. The thrombus aspiration device according to claim 1, characterized in that: The regulating tube (83) is made of silica gel.

6. The thrombus aspiration device according to claim 1, characterized in that: The top of the regulating tube (83) is a crescent-shaped structure.

7. The thrombus aspiration device according to claim 2, characterized in that: The rotating handle (851) is arranged at the same level as the transmission shaft (852) at the front end of the transmission sleeve (853).

8. The thrombus aspiration device according to claim 2, characterized in that: The size of the transmission shaft (852) is consistent with the internal size of the transmission sleeve (853).

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