Negative pressure suction bag

Abstract

The utility model provides a negative pressure suction bag, which relates to the technical field of medical instruments and comprises a suction bag body, a top cover is integrally formed at the upper end of the suction bag body, a bottom connecting piece is mounted at the bottom of the inner side of the suction bag body, a loop bar is mounted on the bottom connecting piece, an inserting rod is movably inserted into the inner side of the loop bar, and an upper connecting piece is mounted at the upper part of the inserting rod. The upper connecting piece and the bottom connecting piece are connected through a spring, and a push rod is rotationally installed on the upper connecting piece and connected to the top cover. The pushing rod can push the upper connecting piece on the lower portion to move, the upper connecting piece moves to drive the inserting rod on the lower portion to move in the sleeve rod and drive the limiting column on the inserting rod to move in the moving groove, at the moment, the spring shrinks, when the bag body needs to be attracted to rebound, force application to the top cover is stopped, and the bag body can be attracted to the top cover through the force of the spring. The upper connecting piece can be pushed to move upwards, the upper connecting piece drives the push rod to move upwards, the ejector rod can be pushed upwards, and at the moment, the bag body is attracted to rebound.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and more specifically, relates to a negative pressure suction bag. Background Art

[0002] Disposable negative pressure suction bag devices are widely used in clinical practice. Disposable negative pressure drainage devices can help with drainage and are used to remove and drain fluid, gas, and blood accumulated during surgery or other wounds, or to guide pus, blood, and body fluids accumulated between tissues or in body cavities to the outside of the body.

[0003] Based on the above, the inventors discovered the following problem: Negative pressure drainage, which involves connecting a drainage tube to a pressure reducer to draw out fluid from a wound using negative pressure, accelerates wound healing. Currently, most surgical procedures are suitable for negative pressure drainage, and this technique is widely accepted clinically. However, the disposable drainage bags currently used in clinical practice have drawbacks. They lack internal support and require pre-inflation for convenience and practicality.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a negative pressure suction bag is provided to achieve a purpose with greater practical value. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a negative pressure suction bag to solve the problem that the existing drainage bag has no support inside and needs to be inflated in advance each time it rebounds in order to be convenient and practical.

[0006] The purpose and effect of the negative pressure suction bag of the utility model are achieved by the following specific technical means:

[0007] A negative pressure suction bag comprises a suction bag body, wherein the upper end of the suction bag body is integrally formed with a top cover, a bottom connecting piece is installed on the inner bottom of the suction bag body, a sleeve rod is installed on the bottom connecting piece, a plug rod is movably inserted into the inner side of the sleeve rod, an upper connecting piece is installed on the upper part of the plug rod, the upper connecting piece and the bottom connecting piece are connected by a spring, a push rod is rotatably installed on the upper connecting piece, and the push rod is connected to the top cover.

[0008] Furthermore, the spring is located outside the plug rod and the sleeve rod.

[0009] Furthermore, a limiting column is provided at the lower end of the plug rod, a movable groove is provided on the sleeve rod, the width of the movable groove is matched with the diameter of the limiting column, and the limiting column is located inside the movable groove.

[0010] Furthermore, the push rod is provided with a thread, the top cover is installed with a nut, and the push rod is connected through the thread and the nut.

[0011] Furthermore, a drainage outlet and a drainage inlet are provided on the top cover, and the lower ends of the drainage outlet and the drainage inlet are both connected to the inner side of the suction bag body.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] When the bag is to be retracted, the upper cover is pressed down and the push rod is pushed downward, and the push rod can push the upper connecting piece at the lower part to move. The upper connecting piece can move, and the lower plug-in rod can be driven to move inside the sleeve rod. The limit column on the plug-in rod moves inside the moving groove. At this time, the spring contracts. When it is necessary to attract the bag body to rebound, the force applied to the top cover is stopped. The upper connecting piece can be pushed upward by the force of the spring. The upper connecting piece drives the push rod to move upward, and the top rod can be pushed upward, and the bag body can be attracted to rebound.

[0014] In the utility model, when the push rod rotates, the thread and the nut cooperate, and the push rod can move upward or downward. When the push rod moves downward, it can push the upper connecting part to move, and the spring contracts. The extension length of the spring can be adjusted to limit the pressing range of the suction bag body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an overall external schematic diagram of a negative pressure suction bag of the present invention.

[0016] Figure 2 It is an overall front schematic diagram of a negative pressure suction bag of the present invention.

[0017] Figure 3 It is a cross-sectional schematic diagram of a negative pressure suction bag of the present utility model.

[0018] Figure 4 This is a schematic diagram of the internal assembly of a negative pressure suction bag of the present invention.

[0019] Figure 5 It is a schematic diagram of the inner part of a negative pressure suction bag of the present invention.

[0020] In the figure, the corresponding relationship between the component names and the drawing numbers is as follows:

[0021] 1. Suction bag body; 2. Top cover; 3. Drainage outlet; 4. Drainage inlet; 5. Bottom connector; 6. Sleeve rod; 7. Connecting rod; 8. Moving slot; 9. Limiting column; 10. Upper connector; 11. Push rod; 12. Nut; 13. Thread; 14. Rotating part; 15. Spring. DETAILED DESCRIPTION

[0022] The embodiments of the present application will be further described below in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0023] In the description of the present application, unless otherwise specified and limited, the meaning of "a plurality of" is two or more than two; the directions or position relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like are based on the directions or position relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the devices or elements indicated to have a specific direction, to be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0025] Embodiment:

[0026] As shown in the accompanying Figure 1 to the accompanying Figure 5 :

[0027] The utility model provides a negative pressure suction bag, comprising a suction bag body 1, wherein the upper end of the suction bag body 1 is integrally formed with a top cover 2, a bottom connecting piece 5 is installed on the inner bottom of the suction bag body 1, a sleeve rod 6 is installed on the bottom connecting piece 5, a plug rod 7 is movably inserted into the inner side of the sleeve rod 6, an upper connecting piece 10 is installed on the upper part of the plug rod 7, the upper connecting piece 10 and the bottom connecting piece 5 are connected by a spring 15, a push rod 11 is rotatably installed on the upper connecting piece 10, the push rod 11 is connected to the top cover 2, the spring 15 is located on the outside of the plug rod 7 and the sleeve rod 6, a rotating piece 14 is installed on the upper part of the push rod 11, and a limiting column 9 is provided at the lower end of the plug rod 7 The sleeve rod 6 is provided with a movable groove 8, the width of which matches the diameter of the limiting post 9. The limiting post 9 is located inside the movable groove 8. The top cover 2 is pressed downward to push the push rod 11 downward. The push rod 11 can push the lower upper connecting member 10 to move. The upper connecting member 10 moves, which can drive the lower plug-in rod 7 to move inside the sleeve rod 6. The limiting post 9 on the plug-in rod 7 moves inside the movable groove 8. At this time, the spring 15 contracts. When the bag body 1 needs to rebound, the top cover 2 is stopped from applying force. The force of the spring 15 can push the upper connecting member 10 upward. The upper connecting member 10 drives the push rod 11 upward, which can push the top rod 2 upward. At this time, the bag body 1 rebounds. The suction bag body can be longitudinally retractable.

[0028] Among them, the push rod 11 is provided with a thread 13, and the top cover 2 is installed with a nut 12. The push rod 11 is connected to the nut 12 through the thread 13. When the push rod 11 rotates, the thread 13 and the nut 12 can cooperate, and the push rod 11 can move upward or downward. When the push rod 11 moves downward, it can push the upper connecting part 10 to move, and the spring 15 contracts. The extension length of the spring 15 can be adjusted to limit the pressing range of the suction bag body 1.

[0029] The top cover 2 is provided with a drainage outlet 3 and a drainage inlet 4 , and the lower ends of the drainage outlet 3 and the drainage inlet 4 are both connected to the inner side of the suction bag body 1 .

[0030] The specific usage and function of this embodiment are as follows:

[0031] In the present invention, first, liquid is introduced or drawn out through the drainage outlet 3 and the drainage inlet 4. When the upper part of the suction bag body 1 is pressed, the push rod 11 can be pushed downward by pressing the top cover 2. The push rod 11 can push the upper connecting piece 10 at the lower part to move. The upper connecting piece 10 moves, which can drive the lower plug rod 7 to move inside the sleeve rod 6. The limit column 9 on the plug rod 7 moves inside the moving groove 8. At this time, the spring 15 contracts. When the bag body 1 needs to be attracted to rebound, the force applied to the top cover 2 is stopped, and the spring 1 is used to release the pressure. 5, can push the upper connecting part 10 to move upward, and the upper connecting part 10 drives the pushing rod 11 to move upward, and can push the top rod 2 upward, at this time the bag body 1 is attracted to rebound; before use, the rotating part 14 can be rotated to rotate the pushing rod 11, and when the pushing rod 11 rotates, the pushing rod 11 can cooperate with the thread 13 and the nut 12, and can move upward or downward. When the pushing rod 11 moves downward, it can push the upper connecting part 10 to move, and the spring 15 contracts. The extension length of the spring 15 can be adjusted to limit the pressing range of the suction bag body 1.

[0032] The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

Claims

1. A negative pressure suction bag, comprising a suction bag body (1), wherein the upper end of the suction bag body (1) is integrally formed with a top cover (2), characterized in that: A bottom connecting piece (5) is installed at the bottom inner side of the suction bag body (1), a sleeve rod (6) is installed on the bottom connecting piece (5), a plug rod (7) is movably inserted into the inner side of the sleeve rod (6), an upper connecting piece (10) is installed on the upper part of the plug rod (7), the upper connecting piece (10) and the bottom connecting piece (5) are connected by a spring (15), a push rod (11) is rotatably installed on the upper connecting piece (10), and the push rod (11) is connected to the top cover (2).

2. A negative pressure suction bag according to claim 1, characterized in that: The spring (15) is located outside the plug rod (7) and the sleeve rod (6), and a rotating member (14) is installed on the upper part of the push rod (11).

3. A negative pressure suction bag according to claim 1, characterized in that: A limiting column (9) is provided at the lower end of the plug rod (7), and a moving groove (8) is provided on the sleeve rod (6). The width of the moving groove (8) is adapted to the diameter of the limiting column (9), and the limiting column (9) is located inside the moving groove (8).

4. A negative pressure suction bag according to claim 1, characterized in that: The push rod (11) is provided with a thread (13), the top cover (2) is provided with a nut (12), and the push rod (11) is connected via the thread (13) and the nut (12).

5. The negative pressure suction bag according to claim 1, characterized in that: The top cover (2) is provided with a drainage outlet (3) and a drainage inlet (4), and the lower ends of the drainage outlet (3) and the drainage inlet (4) are both connected to the inner side of the suction bag body (1).

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