CN219127940U - Anti-countercurrent drainage tube - Google Patents

Abstract

The utility model discloses an anti-reflux drainage tube, and particularly relates to the technical field of medical appliances. The utility model comprises a first pipe body and a second pipe body, and is characterized by further comprising a backflow prevention mechanism, wherein the backflow prevention mechanism comprises a shell, one end of the shell is communicated with the first pipe body, and the other end of the shell is communicated with the second pipe body; the anti-backflow mechanism further comprises a one-way valve core, the one-way valve core is arranged in the shell and is used for preventing liquid entering the second pipe body from flowing backwards; the purpose is that when the negative pressure or siphon state of the external container of the drainage tube is changed, the liquid in the external container is prevented from flowing back, and the liquid is prevented from returning to the patient body again, so that postoperative infection of the patient and wound healing influence are avoided.

Description

Anti-countercurrent drainage tube

Technical Field

The utility model belongs to the technical field of medical instruments, and particularly relates to an anti-reflux drainage tube.

Background

The drainage tube is a medical instrument for guiding pus, blood and liquid accumulated in human tissues or body cavities to the outside of the body, preventing postoperative infection and promoting wound healing. The surgical drainage tube used clinically has a plurality of types, and is used for catheterization, and is used for wounds, thoracic cavities, brain cavities, gastrointestinal tracts, biliary tracts and the like. Surgical drainage is used to direct pus, blood, fluids accumulated in human tissue or cavities to the outside of the body, preventing post-operative infections and affecting wound healing.

When the existing drainage tube is used, drainage is mainly performed through the negative pressure or siphon principle of an external container. Because the drainage tube is when using, there are the circumstances such as remove and collide with and take place, lead to external container's negative pressure state to be changed, perhaps external container is raised on the drainage mouth of drainage tube, and then appear external container in the liquid countercurrent, flow out even from the drainage mouth, get back to the patient in vivo again, cause patient's postoperative infection, influence wound healing.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a microorganism detection culture device, which aims to prevent liquid in an external container from flowing back when the negative pressure or siphon state of the external container of a drainage tube is changed, and avoid the liquid from returning back to the body of a patient, thereby causing postoperative infection of the patient and affecting wound healing.

The technical scheme adopted by the utility model is as follows:

the anti-countercurrent drainage tube comprises a first tube body and a second tube body, and is characterized by further comprising an anti-countercurrent mechanism, wherein the anti-countercurrent mechanism comprises a shell, one end of the shell is communicated with the first tube body, and the other end of the shell is communicated with the second tube body; the anti-backflow mechanism further comprises a one-way valve core, the one-way valve core is arranged in the shell and used for preventing liquid entering the second pipe body from flowing backwards.

By adopting the technical scheme, when the anti-reflux drainage tube is used, liquid to be drained enters the first tube body from the end part of the first tube body, then flows into the shell of the anti-reflux mechanism, flows into the second tube body after passing through the one-way valve core in the shell, and then is discharged into an external container from the end part of the second tube body; the one-way valve core is used for preventing liquid entering the second pipe body from flowing back. The drainage tube has a simple structure, and solves the technical problems that when the negative pressure or siphon state of the external container of the drainage tube is changed, the liquid in the external container flows back to the body of a patient again, and postoperative infection of the patient is caused and wound healing is affected.

Preferably, the unidirectional valve core comprises a third pipe body and a fourth pipe body; one end of the third pipe body is communicated with the first pipe body through the liquid inlet of the shell, one end of the fourth pipe body is communicated with the second pipe body through the liquid outlet of the shell, a first liquid draining hole is formed in the side wall of the third pipe body, a second liquid draining hole is formed in the side wall of the fourth pipe body, an abutting mechanism is arranged between the third pipe body and the fourth pipe body, and the abutting mechanism is used for controlling opening and closing of the liquid inlet of the third pipe body. The liquid enters the third pipe body through the liquid inlet of the shell, pushes the abutting device, flows into the cavity of the shell through the first liquid discharging hole on the side wall of the third pipe body, then enters the fourth pipe body through the second liquid discharging hole on the side wall of the fourth pipe body, then enters the second pipe body through the liquid outlet of the shell, and is discharged into an external container from the end part of the second pipe body.

Preferably, the abutting mechanism comprises a compression spring, an abutting disc and a base; one end of the compression spring is fixedly connected with the bottom end of the abutting disc, and the other end of the compression spring is fixedly connected with the base; the butt plate with compression spring set up in the inside of third body, the lateral wall of butt plate with the inner wall of third body cooperatees and sliding connection, the base sets up the third body with between the fourth body, and with third body with fourth body fixed connection. The liquid enters the third pipe body through the liquid inlet of the shell, the pressure generated by the liquid inlet overcomes the resilience force of the compression spring to push the abutting disc to slide towards the base, so that the first liquid discharging hole is opened and then flows into the cavity of the shell, enters the fourth pipe body through the second liquid discharging hole on the side wall of the fourth pipe body, then enters the second pipe body through the liquid outlet of the shell, and is discharged into an external container from the end part of the second pipe body; when the negative pressure or siphon state of the external container is changed, the abutting disc does not receive the pressure of the liquid, and the resilience force of the compression spring enables the abutting disc to slide in the opposite direction, so that the liquid inlet is closed, and the technical effect of preventing the liquid from flowing backwards is achieved.

Preferably, a first socket is arranged at the top end of the shell, the first socket is opposite to the liquid inlet, and the first pipe body is connected with the first socket; the bottom of casing is equipped with the second bellmouth, the second bellmouth with the liquid outlet is relative, the second body with the second bellmouth is connected. The first pipe body is accurately connected with the third pipe body through the first socket; and the second pipe body is accurately connected with the fourth pipe body through the second socket.

Preferably, the base is provided with a drainage hole. The drainage hole drains the liquid remained in the third pipe body into the fourth pipe body, so that the liquid enters the second pipe body and is discharged into an external container.

Preferably, a drainage nozzle is arranged at the end part of the first pipe body. The drainage nozzle is convenient for liquid to be drained to enter the first pipe body.

Preferably, the first pipe body or the second pipe body is provided with a current limiting clamp. The restrictor clip is used to control the flow rate of the liquid.

Preferably, a sleeve ring is arranged at the end part of the second pipe body. The sleeve ring is used for connecting the external container with the second pipe body, so that the drainage liquid is prevented from splashing and leaking.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

1. when the anti-reflux drainage tube is used, liquid to be drained enters the first tube body from the end part of the first tube body, then flows into the shell of the anti-reflux mechanism, flows into the second tube body after passing through the one-way valve core in the shell, and then is discharged into an external container from the end part of the second tube body; the one-way valve core is used for preventing liquid entering the second pipe body from flowing back. The drainage tube has a simple structure, and solves the technical problems that when the negative pressure or siphon state of the external container of the drainage tube is changed, the liquid in the external container flows back to the body of a patient again, and postoperative infection of the patient is caused and wound healing is affected.

2. The one-way valve core comprises a third pipe body and a fourth pipe body; one end of the third pipe body is communicated with the first pipe body through the liquid inlet of the shell, one end of the fourth pipe body is communicated with the second pipe body through the liquid outlet of the shell, a first liquid draining hole is formed in the side wall of the third pipe body, a second liquid draining hole is formed in the side wall of the fourth pipe body, an abutting mechanism is arranged between the third pipe body and the fourth pipe body, and the abutting mechanism is used for controlling opening and closing of the liquid inlet of the third pipe body. The liquid enters the third pipe body through the liquid inlet of the shell, pushes the abutting device, flows into the cavity of the shell through the first liquid discharging hole on the side wall of the third pipe body, then enters the fourth pipe body through the second liquid discharging hole on the side wall of the fourth pipe body, then enters the second pipe body through the liquid outlet of the shell, and is discharged into an external container from the end part of the second pipe body.

3. The abutting mechanism comprises a compression spring, an abutting disc and a base; one end of the compression spring is fixedly connected with the bottom end of the abutting disc, and the other end of the compression spring is fixedly connected with the base; the butt plate with compression spring set up in the inside of third body, the lateral wall of butt plate with the inner wall of third body cooperatees and sliding connection, the base sets up the third body with between the fourth body, and with third body with fourth body fixed connection. The liquid enters the third pipe body through the liquid inlet of the shell, the pressure generated by the liquid inlet overcomes the resilience force of the compression spring to push the abutting disc to slide towards the base, so that the first liquid discharge hole is opened and then flows into the cavity of the shell, enters the fourth pipe body through the second liquid discharge hole on the side wall of the fourth pipe body, then enters the second pipe body through the liquid outlet of the shell, and is discharged into an external container from the end part of the second pipe body; when the negative pressure or siphon state of the external container is changed, the abutting disc does not receive the pressure of the liquid, and the resilience force of the compression spring enables the abutting disc to slide in the opposite direction, so that the liquid inlet is closed, and the technical effect of preventing the liquid from flowing backwards is achieved.

4. The top end of the shell is provided with a first socket, the first socket is opposite to the liquid inlet, and the first pipe body is connected with the first socket; the bottom of casing is equipped with the second bellmouth, the second bellmouth with the liquid outlet is relative, the second body with the second bellmouth is connected. The first pipe body is accurately connected with the third pipe body through the first socket; and the second pipe body is accurately connected with the fourth pipe body through the second socket.

5. And the base is provided with a drainage hole. The drainage hole drains the liquid remained in the third pipe body into the fourth pipe body, so that the liquid enters the second pipe body and is discharged into an external container.

6. The end of the first pipe body is provided with a drainage nozzle. The drainage nozzle is convenient for liquid to be drained to enter the first pipe body.

7. And a flow limiting clamp is arranged on the first pipe body or the second pipe body. The restrictor clip is used to control the flow rate of the liquid.

8. The end part of the second pipe body is provided with a sleeve ring. The sleeve ring is used for connecting the external container with the second pipe body, so that the drainage liquid is prevented from splashing and leaking.

Drawings

FIG. 1 is a schematic view of the overall structure of an anti-reflux drainage tube according to the present utility model;

FIG. 2 is an overall cross-sectional view of an anti-reflux drain tube of the present utility model;

FIG. 3 is a schematic view of the internal structure of the anti-reflux mechanism of the present utility model;

FIG. 4 is a schematic view of a backflow preventing drainage tube in a drainage state in example 1;

fig. 5 is a schematic view showing the internal structure of the anti-reflux mechanism in embodiment 2.

Reference numerals

1-first pipe body, 2-second pipe body, 3-casing, 4-third pipe body, 5-fourth pipe body, 6-abutting mechanism, 601-compression spring, 602-abutting disk, 603-base, 6031-drainage hole, 7-inlet, 8-outlet, 9-casing cavity, 10-first fluid-discharge hole, 11-second fluid-discharge hole, 12-first bellmouth, 13-second bellmouth, 14-drainage mouth, 15-restriction clamp, 16-cover are established the ring, 17-disc is protruding.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, are intended to be within the scope of the present application.

In the description of the embodiments of the present application, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the inventive product, are merely for convenience of description and simplicity of description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

The present utility model is described in detail below with reference to fig. 1 to 5.

Example 1:

an anti-reflux drainage tube comprises a first tube body 1 and a second tube body 2, and is characterized by further comprising an anti-reflux mechanism, wherein the anti-reflux mechanism comprises a cylindrical shell 3, one end of the shell 3 is communicated with the first tube body 1, and the other end of the shell is communicated with the second tube body 2; the backflow prevention mechanism further comprises a one-way valve core, the one-way valve core is arranged in the shell 3 and is used for preventing liquid entering the second pipe body 2 from flowing backwards.

In this embodiment, the first tube body 1 and the second tube body 2 are both hoses made of silica gel.

In this embodiment, the unidirectional valve core includes a third pipe body 4 and a fourth pipe body 5; one end of the third pipe body 4 is communicated with the first pipe body 1 through a liquid inlet 7 of the casing 3, one end of the fourth pipe body 5 is communicated with the second pipe body 2 through a liquid outlet 8 of the casing 3, two first liquid draining holes 10 are formed in the side wall of the third pipe body 4, two second liquid draining holes 11 are formed in the side wall of the fourth pipe body 5, an abutting mechanism 6 is installed between the third pipe body 4 and the fourth pipe body 5, and the abutting mechanism 6 is used for controlling opening and closing of the liquid inlet 7 of the third pipe body 4.

In this embodiment, the size of the inner diameter of the third pipe body 4 is greater than or equal to the size of the inner diameter of the liquid inlet 7; the inner diameter of the fourth pipe body 5 is greater than or equal to the inner diameter of the liquid outlet 8.

In the present embodiment, the abutment mechanism 6 includes a compression spring 601, an abutment plate 602, and a base 603; one end of the compression spring 601 is sleeved on a boss side wall at the bottom end of the abutting disc 602, so that the compression spring 601 is fixedly connected with the abutting disc 602, and the other end of the compression spring 601 is sleeved on a boss side wall on the base 603, so that the compression spring 601 is fixedly connected with the base 603; the abutment disc 602 and the compression spring 601 are disposed in the third tube 4, the outer side wall of the abutment disc 602 is matched with and slidingly connected with the inner wall of the third tube 4, and the base 603 is disposed between the third tube 4 and the fourth tube 5 and fixedly bonded with the third tube and the fourth tube 5.

In this embodiment, a first socket 12 is provided at the top end of the housing 3, the first socket 12 is opposite to the liquid inlet 7, an inner diameter of the first socket 12 is matched with an outer diameter of the first pipe body 1, and the first pipe body 1 is in threaded connection with the first socket 12; the bottom of casing 3 is equipped with second bellmouth 13, second bellmouth 13 with liquid outlet 8 is relative, the internal diameter of second bellmouth 13 with the external diameter size of second body 2 cooperatees, second body 2 with second bellmouth 13 threaded connection.

In this embodiment, two drain holes 6031 are provided in the base 603.

In this embodiment, a drainage nozzle 14 is disposed at an end of the first pipe body 1, the drainage nozzle 14 is designed as a tip, and the drainage nozzle 14 is in threaded connection with the first pipe body 1.

In this embodiment, the first tube body 1 or the second tube body 2 is provided with a flow-limiting clip 15.

In this embodiment, a sleeve ring 16 is disposed at an end of the second pipe body 2, and the sleeve ring 16 is screwed with the end of the second pipe body 2.

Example 2:

unlike embodiment 1, in this embodiment, the top end of the abutment plate 602 is provided with a disc-shaped protrusion 17, the disc-shaped protrusion 17 is integrally formed with the top end of the abutment plate, and the outer side wall of the disc-shaped protrusion 17 is matched with and slidingly connected with the inner wall of the first tube body 1. The disc-shaped protrusion 17 enhances the reverse flow prevention performance of the check valve cartridge.

The specific use process is as follows:

when the anti-reflux drainage tube is used, the drainage nozzle 14 is placed at a corresponding part of a patient, liquid to be drained enters the first tube body 1 from the end part of the first tube body 1, then flows into the shell 3 of the anti-reflux mechanism, namely enters the third tube body 4 from the liquid inlet 7 of the shell 3, the generated pressure overcomes the resilience force of the compression spring 601 to push the abutting disc 602 to slide towards the base 603, so that the first liquid drain hole 10 is opened, then flows into the shell cavity 9, enters the fourth tube body 5 through the second liquid drain hole 11 on the side wall of the fourth tube body 5, then enters the second tube body 2 through the liquid outlet 8 of the shell 3, and is discharged into an external container from the end part of the second tube body 2; when the negative pressure or siphon state of the external container is changed, the abutting disc 602 no longer receives the pressure of the liquid, and at this time, the elastic force of the compression spring 601 makes the abutting disc 602 slide in the opposite direction, so as to close the liquid inlet 7, thereby achieving the technical effect of preventing the liquid from flowing back.

The foregoing examples merely represent specific embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, several variations and modifications can be made without departing from the technical solution of the present application, which fall within the protection scope of the present application.

Claims (8)

1. The anti-countercurrent drainage tube comprises a first tube body (1) and a second tube body (2), and is characterized by further comprising an anti-countercurrent mechanism, wherein the anti-countercurrent mechanism comprises a shell (3), one end of the shell (3) is communicated with the first tube body (1), and the other end of the shell is communicated with the second tube body (2); the anti-backflow mechanism further comprises a one-way valve core, the one-way valve core is arranged in the shell (3) and used for preventing liquid entering the second pipe body (2) from flowing backwards.

2. The anti-reflux draft tube according to claim 1 wherein: the unidirectional valve core comprises a third pipe body (4) and a fourth pipe body (5); one end of the third pipe body (4) is communicated with the first pipe body (1) through a liquid inlet (7) of the shell (3), one end of the fourth pipe body (5) is communicated with the second pipe body (2) through a liquid outlet (8) of the shell (3), a first liquid draining hole (10) is formed in the side wall of the third pipe body (4), a second liquid draining hole (11) is formed in the side wall of the fourth pipe body (5), a butt mechanism (6) is arranged between the third pipe body (4) and the fourth pipe body (5), and the butt mechanism (6) is used for controlling the opening and closing of the liquid inlet (7) of the third pipe body (4).

3. An anti-reflux drain tube according to claim 2, wherein: the abutting mechanism (6) comprises a compression spring (601), an abutting disc (602) and a base (603); one end of the compression spring (601) is fixedly connected with the bottom end of the abutting disc (602), and the other end of the compression spring is fixedly connected with the base (603); the butt dish (602) with compression spring (601) set up in the inside of third body (4), the lateral wall of butt dish (602) with the inner wall of third body (4) cooperatees and sliding connection, base (603) set up third body (4) with between fourth body (5), and with third body and (4) fourth body (5) fixed connection.

4. The anti-reflux drainage tube according to claim 2, wherein a first socket (12) is arranged at the top end of the shell (3), the first socket (12) is opposite to the liquid inlet (7), and the first tube body (1) is connected with the first socket (12); the bottom of casing (3) is equipped with second bellmouth (13), second bellmouth (13) with liquid outlet (8) are relative, second body (2) with second bellmouth (13) are connected.

5. A drain tube according to claim 3, wherein the base (603) is provided with a drain hole (6031).

6. A drain against counter flow according to claim 1, characterized in that the end of the first tube body (1) is provided with a drain nozzle (14).

7. The anti-reflux drainage tube according to claim 1, characterized in that the first tube body (1) or the second tube body (2) is provided with a flow-limiting clip (15).

8. The anti-reflux drainage tube according to claim 1, characterized in that the end of the second tube body (2) is provided with a sleeve ring (16).

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