Suction tube device for intracranial thrombus extraction

Abstract

The utility model relates to the technical field of suction tubes, in particular to a suction tube device for intracranial thrombus extraction. The suction pipe device comprises a negative pressure device and a suction pipe, the end of the negative pressure device is connected with a control assembly, the control assembly comprises a first connecting pipe, a second connecting pipe and a valve body, the second connecting pipe is used for being connected with the suction pipe, the valve body is arranged in a cavity, and a valve element is arranged in the valve body. The valve element is connected with the valve body through an elastic piece, and the valve body is communicated with the first connecting pipe and the second connecting pipe. According to the suction pipe device, the valve does not need to be opened manually, so that operation of a doctor in the operation process is facilitated, the air pressure valve can be opened only when the suction pipe is completely inserted into the second connecting pipe, it is ensured that external air cannot enter the negative pressure device, and the negative pressure value of the negative pressure device is more accurate.

Description

Technical Field

[0001] The utility model belongs to the technical field of suction tubes, and in particular relates to a suction tube device for intracranial thrombus removal. Background Art

[0002] As people's living standards improve, the incidence of thrombotic diseases is increasing. Thrombosis can block or completely interrupt blood flow. If embolism occurs in the cardiovascular and cerebrovascular systems, it will cause serious consequences, ranging from disability to death, affecting life and health. How to quickly and effectively eliminate embolism is an urgent problem to be solved by those skilled in the art.

[0003] The Chinese utility model patent with application number CN201920241804.9 provides a thrombus aspiration device, which is provided with a three-way head, wherein the three-way head also includes a control valve. Before use, the control valve of the three-way joint is rotated to a closed state, the piston rod is pulled to an appropriate scale to make it a negative pressure state, and then the control valve of the three-way joint is rotated to a thrombus aspiration state, and the thrombus is aspirated into a syringe under the action of negative pressure.

[0004] However, after connecting the suction tube to the negative pressure device, the valve of the negative pressure device needs to be manually adjusted to achieve the suction of the thrombus. This increases the doctor's operating steps during the operation. If the valve is accidentally opened before the connection is properly made, the negative pressure value will change, affecting the operation. Utility Model Content

[0005] The purpose of the utility model is to provide a suction tube device for intracranial thrombus removal with a simple structure and reasonable design in order to solve the above problems.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0007] A suction tube device for intracranial thrombus removal, comprising a negative pressure device and a suction tube, wherein the end of the negative pressure device is connected to a control component, wherein the control component comprises a first connecting tube, a second connecting tube and a valve body, wherein the second connecting tube is used to connect the suction tube;

[0008] The valve body is provided with a cavity, a valve core is provided inside the valve body, the valve core is connected to the valve body through an elastic member, and the valve body is connected to the first connecting pipe and the second connecting pipe;

[0009] A through hole is formed in the valve core near one end of the first spring, and the through hole has the same diameter as the inner diameter of the first connecting pipe. A first cavity is also formed in the valve core, and the lower part of the first cavity is connected to the valve body cavity. A blocking member is provided in the first cavity.

[0010] Furthermore, the elastic member is a first spring, one end of the first spring is connected to the bottom of the valve body cavity, and the other end of the first spring is connected to the valve core.

[0011] Furthermore, the blocking member includes a second spring, one end of the second spring is connected to the top of the first cavity, and the other end of the second spring is connected to a disc.

[0012] Furthermore, a second cavity is formed on the side wall of the second connecting pipe, the second cavity is communicated with the second connecting pipe, and a clamping block is connected to the inside of the second cavity via a third spring, and the clamping block is trapezoidal.

[0013] Furthermore, a protrusion is sleeved on the end of the suction pipe, and the protrusion and the clamping block are engaged with each other to fix the suction pipe.

[0014] Furthermore, one end of the clamping block close to the third spring is connected to a pull rod, and the pull rod is arranged through the side wall of the second connecting tube.

[0015] Furthermore, the second cavity is arranged near one end of the first spring and also includes a strip block, a slide groove is opened inside the strip block, the slide groove is "L"-shaped and is connected to the valve body, the pull rod is arranged in the slide groove, one end of the pull rod passes through the second connecting pipe and the third spring to be connected to the block, and the other end of the pull rod extends into the valve body.

[0016] Furthermore, the negative pressure device comprises a sleeve and a core rod, a first limit block is arranged at the opening of the sleeve, and a second limit block matched with the first limit block is arranged on the core rod.

[0017] Furthermore, the protrusion is an annular sealing ring and can be made of rubber material.

[0018] The beneficial effects of the utility model are as follows: the utility model realizes the opening and closing of the control component by setting up a control component, opening a through hole and a sealing piece in the valve core of the control component, and the opening state of the control component can be achieved by pressing the sealing piece with the end of the suction tube. Therefore, the control component can be opened while the suction tube is inserted, and there is no need to manually open the valve, which facilitates the doctor's operation during the operation. Moreover, the air pressure valve will only open when the suction tube is completely inserted into the second connecting tube, thereby ensuring that external air will not enter the negative pressure device, making the negative pressure value of the negative pressure device more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the control component structure of the utility model;

[0021] Figure 3 It is a cross-sectional view of the control assembly of the utility model;

[0022] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle;

[0023] Figure 5 This utility model Figure 4 Enlarged view of point B in the middle;

[0024] Figure 6 It is a schematic diagram of the structure of the negative pressure device of the utility model.

[0025] In the figure: 1, negative pressure device; 101, sleeve; 102, core rod; 2, suction tube; 201, bump; 3, control component; 301, first connecting tube; 302, second connecting tube; 303, valve body; 304, valve core; 3041, through hole; 3042, first cavity; 305, first spring; 306, blocking member; 3061, second spring; 3062, disc; 308, strip block; 309, third spring; 310, second cavity; 311, block; 312, slide groove; 313, pull rod; 314, first limit block; 315, second limit block. DETAILED DESCRIPTION

[0026] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0027] like Figure 1 , Figure 2 As shown, a suction tube device for intracranial thrombus removal includes a negative pressure device 1 and a suction tube 2. The end of the negative pressure device 1 is connected to a control component 3. The control component 3 includes a first connecting tube 301, a second connecting tube 302 and a valve body 303. The second connecting tube 302 is used to connect the suction tube 2.

[0028] The valve body 303 is provided with a cavity, a valve core 304 is provided inside the valve body 303, the valve core 304 is connected to the valve body 303 through an elastic member, and the valve body 303 is connected to the first connecting pipe 301 and the second connecting pipe 302;

[0029] A through hole 3041 is defined in the valve core 304 , and the through hole 3041 has the same diameter as the inner diameter of the first connecting pipe 301 . A first cavity 3042 is also defined in the valve core 304 , and the lower side of the first cavity 3042 is connected to the cavity of the valve body 303 . A blocking member 306 is disposed in the first cavity 3042 .

[0030] In actual use, the negative pressure device 1 and the control component 3 can be connected in a threaded or other detachable manner, the first connecting tube 301 and the valve body 303 can also be connected in a detachable manner, and the end of the first connecting tube 301 connected to the negative pressure device 1 can be set to different apertures to facilitate adaptation to different models of negative pressure devices.

[0031] In a specific implementation, the elastic member is a first spring 305 , one end of the first spring 305 is connected to the bottom of the cavity of the valve body 303 , and the other end of the first spring 305 is connected to the valve core 304 .

[0032] In a specific implementation, the blocking member 306 includes a second spring 3061 , one end of the second spring 3061 is connected to the top of the first cavity 3042 , and the other end of the second spring 3061 is connected to a disk 3062 .

[0033] In actual use, a rubber layer may be provided on the side wall of the disc 3062 to increase friction and prevent the blood in the second connecting tube 302 from being brought into the first cavity 3042 .

[0034] In a specific implementation, a protrusion 201 is sleeved on the end of the suction tube 2 .

[0035] In a specific implementation, a second cavity 310 is formed on a side wall of the second connecting tube 302 . The second cavity 310 is in communication with the second connecting tube 302 . A clamping block 311 is connected inside the second cavity 310 via a third spring 309 .

[0036] It should be noted that the clamping block 311 is a trapezoidal structure. In actual use, the suction tube 2 is inserted into the second connecting tube 302, and the protrusion 201 presses against the clamping block 311 to compress the third spring 309. When the protrusion 201 completely passes through the clamping block 311, the third spring 309 releases the elastic force, thereby clamping the suction tube 2.

[0037] In another embodiment, a pull rod is connected to one end of the clamping block close to the third spring, and the pull rod is disposed through the side wall of the second connecting tube.

[0038] In actual use, the restriction of the block on the protrusion can be released by manually pulling the pull rod.

[0039] In another embodiment, the second cavity 310 is arranged near one end of the first spring 305, and also includes a bar block 308, a slide groove 312 is opened inside the bar block 308, the slide groove 312 is "L"-shaped, and is connected to the valve body 303, and a pull rod 313 is arranged in the slide groove 312. One end of the pull rod 313 passes through the second connecting pipe 302 and the third spring 309 and is connected to the block 311, and the other end of the pull rod 313 extends into the valve body 303.

[0040] In actual use, the valve core 304 can limit the end of the pull rod 313 extending out of the valve body 303. When the first spring 305 is compressed to the limit position, the valve core 304 limits the pull rod 313 at the far left end. At this time, the block 311 is completely in the second cavity 310. When the control component 3 is opened, the first spring 305 releases the elastic force, and the valve core 304 releases the limit on the pull rod 313. Under the action of the third spring 309, the block 311 pops out of the second cavity 310 to limit the protrusion 201 and prevent the suction tube 2 from retreating.

[0041] In a specific implementation, the negative pressure device 1 includes a sleeve 101 and a core rod 102 . A first limit block 314 is disposed at the opening of the sleeve 101 , and a second limit block 315 matched with the first limit block 314 is disposed on the core rod 102 .

[0042] In actual use, the second limit block 315 is generally set at the end away from the handle of the core rod 102. The core rod 102 is pulled to put the sleeve 101 in a negative pressure state, and then the core rod 102 is rotated to make the first limit block 314 and the second limit block 315 cooperate with each other to fix the core rod 102 and prevent the core rod 102 from retracting.

[0043] In a specific implementation, the protrusion 201 is an annular sealing ring made of rubber.

[0044] The protrusion 201 is made of rubber material, which can increase the friction between it and the second connecting pipe 302 and improve the sealing performance.

[0045] When the cam 314 is in the closed position, the second stopper 315 is engaged with the first stopper 314, and the second stopper 315 is engaged with the first stopper 314, the second stopper 315 is engaged with the second stopper 314, and the second stopper 315 is engaged with the first stopper 314, so that the cam 314 is engaged with the second stopper 315, and the second stopper 314 is engaged with the second stopper 315, so that the cam 314 is engaged with the first stopper 314, the second stopper 315 is engaged with the second stopper 314, the second stopper 315 is engaged with the second stopper 314, the second stopper 315 is engaged with the second stopper 314, the second stopper 315 is engaged with the second stopper 315 ...

[0046] When the suction is completed, the valve core 304 is pressed to misalign the through hole 3041 with the first connecting tube 301, thereby closing the suction tube 2. At this time, the first spring 305 is compressed, and the valve core 304 pushes the pull rod 313, driving the third spring 309 to compress, so that the blocking block 311 enters the second cavity 310, thereby releasing the restriction on the protrusion 201, so that the suction tube 2 can be easily pulled out. After the suction tube 2 is pulled out, the second spring 3061 releases the elastic force and pushes the disc 3062 into the second connecting tube 302, thereby realizing the clamping of the valve core 304 and preventing the valve core 304 from popping out.

[0047] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A suction pipe device, comprising a negative pressure device and a suction pipe, characterized in that: The end of the negative pressure device is connected to a control component, the control component includes a first connecting pipe, a second connecting pipe and a valve body, the second connecting pipe is used to connect the suction pipe; One end of the valve body is open, and a valve core is arranged inside, and the valve core is connected to the valve body through an elastic member in its moving direction; The valve core is provided with a through hole, and the through hole is used to connect the first connecting pipe with the second connecting pipe. A first cavity is also provided in the valve core, the lower end of the first cavity is open, and a blocking member is arranged in the first cavity.

2. A suction tube device according to claim 1, characterized in that: The elastic member is a first spring, one end of the first spring is connected to the bottom of the valve body cavity, and the other end of the first spring is connected to the valve core.

3. A suction tube device according to claim 2, characterized in that: The blocking member includes a second spring, one end of the second spring is connected to the top of the first cavity, and the other end of the second spring is connected to a disc.

4. A suction tube device according to claim 3, characterized in that: A second cavity is formed on the side wall of the second connecting pipe. The second cavity is communicated with the second connecting pipe. A clamping block is connected to the inside of the second cavity via a third spring. The clamping block is trapezoidal.

5. A suction tube device according to claim 4, characterized in that: A protrusion is arranged at the end of the suction pipe, and the protrusion is engaged with the clamping block to fix the suction pipe.

6. A suction tube device according to claim 5, characterized in that: One end of the clamping block close to the third spring is connected with a pull rod, and the pull rod is arranged through the side wall of the second connecting pipe.

7. A suction tube device according to claim 6, characterized in that: The second cavity is arranged near one end of the first spring, and also includes a strip block, a slide groove is opened inside the strip block, the slide groove is "L"-shaped and is connected to the valve body, the pull rod is arranged in the slide groove, and the pull rod extends into the valve body away from one end of the block.

8. A suction tube device according to claim 5, characterized in that: The projection is an annular sealing ring.

9. A suction tube device according to any one of claims 1 to 6, characterized in that: The negative pressure device comprises a sleeve and a core rod. A first limit block is arranged at the opening of the sleeve, and a second limit block matched with the first limit block is arranged on the core rod.

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