CN221751649U - Device for controlling negative pressure intensity through cam - Google Patents

Abstract

The utility model relates to the technical field of medical auxiliary instruments, in particular to a device for controlling negative pressure intensity through a cam, which comprises a support frame, and a first control component, a second control component, a positive pressure conveying pipe, a main pipeline and a negative pressure conveying pipe which are arranged on the support frame; the positive pressure conveying pipe is communicated with the main pipeline and the negative pressure conveying pipe; the first control component is used for loosening or extruding the positive pressure conveying pipe to control the switch of the positive pressure conveying pipe; the second control component is used for loosening or extruding the switch of the main pipeline control main pipeline; the end part of the positive pressure conveying pipe, which is far away from the negative pressure conveying pipe, is connected with the atmosphere, and the end part of the main pipeline, which is far away from the negative pressure conveying pipe, is connected with the thrombus suction pipeline; the negative pressure conveying pipe is connected with the negative pressure tank. The device has simple and reliable structure, is not easily affected by other factors such as high temperature, high pressure and the like, and is not easy to cause faults; long service life, low energy consumption, convenient control of frequency and continuous control of positive pressure on-off in a short time.

Description

A device for controlling negative pressure intensity through a cam

Technical Field

The utility model relates to the technical field of medical auxiliary equipment, in particular to a device for controlling negative pressure intensity through a cam.

Background Art

At present, the flow of liquid in the pipeline is mainly controlled by a pinch valve, which uses pneumatic, electric, manual or hydraulic drive to squeeze the sleeve, and controls the flow of liquid by squeezing or loosening the hose. Only the inner wall of the hose is in contact with the medium. However, when aspirating larger or thicker thrombi, it is easy to cause blockage of the suction pipeline, which may cause serious problems such as bleeding, insufficient blood supply, and thrombus displacement, which is life-threatening. The pinch valve is not fast enough, is easily contaminated, consumes a lot of energy, and is easily affected by high temperature and high pressure.

Utility Model Content

In order to solve the above problems, the purpose of the utility model is to provide a device for controlling the intensity of negative pressure through a cam.

The purpose of the utility model can be achieved through the following technical solutions:

The utility model provides a device for controlling the negative pressure intensity through a cam, which is connected with a negative pressure tank, a thrombus suction pipeline and the atmosphere when in use, and comprises a support frame, and a first control component, a second control component, a positive pressure delivery pipe, a main pipeline and a negative pressure delivery pipe arranged on the support frame;

The positive pressure delivery pipe is interconnected with the main pipeline and the negative pressure delivery pipe; the first control component is used to loosen or squeeze the positive pressure delivery pipe to control the switch of the positive pressure delivery pipe;

The second control assembly is used to loosen or squeeze the main line to control the switch of the main line;

The end of the positive pressure delivery tube away from the negative pressure delivery tube is connected to the atmosphere, and the end of the main line away from the negative pressure delivery tube is connected to the thrombus aspiration pipeline; the negative pressure delivery tube is connected to the negative pressure tank.

In one embodiment of the utility model, the first control assembly includes a first motor and a first cam disposed on a support frame; an output shaft of the first motor is connected to the first cam;

The second control assembly includes a second motor and a second cam which are arranged on the support frame; the output shaft of the second motor is connected to the second cam.

In one embodiment of the utility model, when the first cam contacts the positive pressure delivery pipe, the second cam is separated from the main pipe; when the second cam contacts the main pipe, the first cam is separated from the positive pressure delivery pipe; when the first cam presses the positive pressure delivery pipe, the positive pressure delivery pipe is closed; when the second cam presses the main pipe, the main pipe is closed.

In one embodiment of the present invention, the main pipeline is fixed to the support frame by a first fixing member.

In one embodiment of the present invention, the first fixing member is connected to the supporting frame by bolts.

In one embodiment of the present invention, the negative pressure delivery tube is fixed to the support frame via a second fixing member.

In one embodiment of the present invention, the second fixing member is connected to the support frame via bolts.

In one embodiment of the present invention, the second fixing member is arranged at a position where the positive pressure delivery pipe, the main line and the negative pressure delivery pipe are connected.

In one embodiment of the present utility model, a first support plate for supporting the positive pressure delivery tube is provided on a side of the positive pressure delivery tube away from the first cam.

In one embodiment of the present invention, a second support plate for supporting the main pipe is provided on a side of the main pipe away from the second cam.

In one embodiment of the present invention, the second support plate is arranged on a side of the first fixing member close to the second fixing member.

In one embodiment of the present utility model, the first support plate is parallel to the positive pressure delivery pipe;

The second supporting plate is parallel to the main pipe.

Compared with the prior art, the utility model has the following beneficial effects:

(1) The utility model is a device for controlling the negative pressure intensity by a cam, which adopts a cam structure (a first cam and a second cam), and the cams (the first cam and the second cam) are driven to rotate by a motor (a first motor and a second motor). The cams have a frequency (the first cam and the second cam) of the extrusion pipeline (the positive pressure delivery pipeline and the main pipeline) to control the negative pressure intensity in the pipeline. The device of the utility model has a simple and reliable structure, is not easily affected by other factors such as high temperature and high pressure, and is not prone to failure.

(2) The utility model is a device for controlling the intensity of negative pressure through a cam. The device controls the intensity of negative pressure through a cam, has a long service life, low energy consumption, and is convenient for controlling the frequency. The increase and decrease of negative pressure can be continuously controlled in a short time, and the rotation speed is fast, and the speed of controlling the increase and decrease of negative pressure is fast.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of a device for controlling the intensity of negative pressure through a cam;

FIG2 is a schematic diagram of the structure of a first motor and a second motor in a device for controlling the intensity of negative pressure through a cam;

FIG3 is a schematic diagram of the first cam squeezing the positive pressure delivery pipe;

Numbers in the figure: 1, support frame; 2, first motor; 3, second motor; 4, first cam; 5, second cam; 6, positive pressure delivery pipe; 7, main line; 8, negative pressure delivery pipe; 9, first fixing member; 10, second fixing member; 11, first support plate; 12, second support plate.

DETAILED DESCRIPTION

The utility model is described in detail below with reference to the accompanying drawings and specific embodiments.

In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

Example 1

The present embodiment provides a device for controlling the negative pressure intensity by a cam, which is connected to a negative pressure tank, a thrombus aspiration pipeline and the atmosphere when in use, as shown in FIG1-2, and comprises a support frame 1, and a first control component, a second control component, a positive pressure delivery pipe 6, a main pipeline 7 and a negative pressure delivery pipe 8 arranged on the support frame 1; the positive pressure delivery pipe 6 is interconnected with the main pipeline 7 and the negative pressure delivery pipe 8; the first control component is used to loosen or squeeze the positive pressure delivery pipe 6 to control the switch of the positive pressure delivery pipe 6; the second control component is used to loosen or squeeze the main pipeline 7 to control the switch of the main pipeline 7; The end of the positive pressure delivery tube 6 away from the negative pressure delivery tube 8 is connected to the atmosphere, and the end of the main line 7 away from the negative pressure delivery tube 8 is connected to the thrombus suction pipeline; the negative pressure delivery tube 8 is connected to the negative pressure tank (a tank body for receiving thrombus), and the negative pressure tank is connected to the negative pressure machine; wherein, the first control component includes a first motor 2 and a first cam 4 arranged on the support frame 1; the output shaft of the first motor 2 is connected to the first cam 4; the second control component includes a second motor 3 and a second cam 5 arranged on the support frame 1; the output shaft of the second motor 3 is connected to the second cam 5.

Furthermore, the main line 7 is fixed to the support frame 1 through a first fixing member 9, which is connected to the support frame 1 through bolts, and the first fixing member 9 is provided with a first through groove along its length direction to allow the main line 7 to be embedded; the negative pressure delivery pipe 8 is fixed to the support frame 1 through a second fixing member 10, which is connected to the support frame 1 through bolts; the second fixing member 10 is arranged at a position where the positive pressure delivery pipe 6, the main line 7 and the negative pressure delivery pipe 8 are connected, and the second fixing member 10 is provided with a first through groove along its length direction to allow the main line 7, the negative pressure delivery pipe 8 to be embedded; The second through groove in which the positive pressure delivery pipe 8 is embedded, and the second fixing member 10 is provided with a third through groove along its width direction for allowing the positive pressure delivery pipe 6 to be embedded; a first support plate 11 for supporting the positive pressure delivery pipe 6 is provided on the side of the positive pressure delivery pipe 6 away from the first cam 4; a second support plate 12 for supporting the main line 7 is provided on the side of the main line 7 away from the second cam 5; the second support plate 12 is provided on the side of the first fixing member 9 close to the second fixing member 10, the first support plate 11 is parallel to the positive pressure delivery pipe 6; the second support plate 12 is parallel to the main line 7.

When the first cam 4 is in contact with the positive pressure delivery pipe 6, the second cam 5 is separated from the main pipe 7; when the second cam 5 is in contact with the main pipe 7, the first cam 4 is separated from the positive pressure delivery pipe 6;

When the first cam 4 presses the positive pressure delivery pipe 6, the positive pressure delivery pipe 6 is closed (as shown in FIG. 3 );

When the second cam 5 presses the main passage 7 , the main passage 7 is closed.

Example 2

This embodiment provides a use of the device for controlling the negative pressure intensity by a cam as described in Embodiment 1, which is specifically as follows:

The first motor 2 drives the first cam 4 to rotate, and the second motor 3 drives the second cam 5 to rotate. When the first cam 4 is switched from not contacting the positive pressure delivery pipe 6 to contacting the positive pressure delivery pipe 6, the second cam 5 is switched from contacting the main pipe 7 to being away from the main pipe 7; the first cam 4 and the second cam 5 continue to rotate, and the negative pressure strength inside the device increases until the positive pressure delivery pipe 6 is squeezed by the first cam 4 until the positive pressure delivery pipe 6 is closed;

The first motor 2 drives the first cam 4 to rotate, and the second motor 3 drives the second cam 5 to rotate. When the second cam 5 switches from not contacting the main line 7 to contacting the main line 7, the first cam 4 switches from contacting the positive pressure delivery pipe 6 to being away from the positive pressure delivery pipe 6. The first cam 4 and the second cam 5 continue to rotate, and the negative pressure strength inside the device gradually decreases until the main line 7 is squeezed by the second cam 5 until the main line 7 is closed.

The negative pressure intensity is adjusted by the first cam 4 and the second cam 5 in the above-mentioned manner, thereby realizing continuous suction of the thrombus; during suction, the liquid enters the negative pressure tank through the main line 7 and the negative pressure delivery pipe 8.

The above description of the embodiments is to facilitate the understanding and use of the utility model by those skilled in the art. It is obvious that those familiar with the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the utility model is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the interpretation of the utility model without departing from the scope of the utility model should be within the scope of protection of the utility model.

Claims (10)

1. The device for controlling the negative pressure intensity through the cam is connected with a negative pressure tank, a thrombus suction pipeline and the atmosphere when in use, and is characterized by comprising a support frame (1), and a first control component, a second control component, a positive pressure conveying pipe (6), a main pipeline (7) and a negative pressure conveying pipe (8) which are arranged on the support frame (1);

The positive pressure conveying pipe (6) is communicated with the main pipeline (7) and the negative pressure conveying pipe (8); the first control component is used for loosening or extruding the positive pressure conveying pipe (6) to control the switch of the positive pressure conveying pipe (6);

The second control component is used for loosening or extruding the main pipeline (7) to control the switch of the main pipeline (7);

The end part of the positive pressure conveying pipe (6) far away from the negative pressure conveying pipe (8) is connected with the atmosphere, and the end part of the main pipeline (7) far away from the negative pressure conveying pipe (8) is connected with a thrombus suction pipeline; the negative pressure conveying pipe (8) is connected with the negative pressure tank.

2. A device for controlling the intensity of negative pressure by means of cams according to claim 1, characterized in that said first control assembly comprises a first motor (2) and a first cam (4) arranged on a support frame (1); an output shaft of the first motor (2) is connected with the first cam (4);

The second control assembly comprises a second motor (3) and a second cam (5) which are arranged on the support frame (1); an output shaft of the second motor (3) is connected with a second cam (5).

3. A device for controlling the intensity of negative pressure by means of cams according to claim 2, characterized in that the second cam (5) is separated from the main conduit (7) when the first cam (4) is in contact with the positive pressure delivery pipe (6); when the second cam (5) is in contact with the main pipeline (7), the first cam (4) is separated from the positive pressure conveying pipe (6); when the first cam (4) presses the positive pressure conveying pipe (6), the positive pressure conveying pipe (6) is closed; when the second cam (5) presses the main pipeline (7), the main pipeline (7) is closed.

4. A device for controlling the intensity of negative pressure by means of cams according to claim 3, characterized in that the main pipe (7) is fixed to the support frame (1) by means of a first fixing element (9).

5. Device for controlling the intensity of negative pressure by means of cams according to claim 4, characterized in that the negative pressure delivery pipe (8) is fixed to the support frame (1) by means of a second fixing element (10).

6. Device for controlling the intensity of negative pressure by means of cams according to claim 5, characterized in that the first fixing element (9) is connected to the support frame (1) by means of a bolt and the second fixing element (10) is connected to the support frame (1) by means of a bolt.

7. Device for controlling the intensity of negative pressure by means of a cam according to claim 6, characterized in that the side of the positive pressure delivery pipe (6) remote from the first cam (4) is provided with a first support plate (11) for supporting the positive pressure delivery pipe (6).

8. Device for controlling the intensity of negative pressure by means of a cam according to claim 7, characterized in that the side of the main conduit (7) remote from the second cam (5) is provided with a second support plate (12) for supporting the main conduit (7).

9. Device for controlling the intensity of negative pressure by means of a cam according to claim 8, characterized in that the second support plate (12) is arranged on the side of the first fixing element (9) close to the second fixing element (10).

10. Device for controlling the intensity of negative pressure by means of a cam according to claim 9, characterized in that said first support plate (11) is parallel to the positive pressure delivery pipe (6);

the second support plate (12) is parallel to the main pipeline (7).