Negative-pressure sterile liquid pumping and discharging device

Abstract

The utility model belongs to the field of medical instruments, and particularly relates to a negative pressure sterile liquid extraction and drainage device which comprises a bag body, a liquid inlet pipe is connected to the top of the bag body in a penetrating mode, a liquid outlet pipe is connected to the bottom of the bag body in a penetrating mode, a pipe cover is connected to the outer side of the liquid inlet pipe in a threaded mode, and scale marks are arranged on the front face and the back face of the bag body. The inner wall of the bag body is arranged in an arc shape, creases are arranged on the two sides of the bag body, the liquid inlet pipe comprises a first threaded pipe, and the first threaded pipe is integrally arranged in the middle of the liquid inlet pipe; the bag body, the liquid inlet pipe, the liquid outlet pipe, the disposable self-closing valve and the negative pressure pump are matched together, the bag body is a disposable negative pressure bag, the inner wall of the bag body is in an arc shape, it can be guaranteed that liquid flows smoothly, dead corners are reduced, liquid residues are avoided, the unused bag body can be folded and stored, and the sealing ring prevents invasion of air and microorganisms. Liquid backflow or leakage can be prevented, and a sterile environment is kept.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of medical apparatus and instruments, and specifically relates to a negative pressure sterile liquid suction and drainage device. BACKGROUND

[0002] It is commonly used in medical or laboratory environments for the purpose of extracting and discharging liquid samples while maintaining the sterility of the samples. The design of such equipment requires safe and effective handling of liquids to avoid contamination and cross-infection.

[0003] In the Chinese patent CN202021153328.4, the utility model provides a body fluid suction storage drainage bag of three -way interface, including bag body, three -way pipe, clamping piece and fastening cap, the upper end middle part of bag body is provided with upper drainage tube, the upper end of upper drainage tube is provided with three -way pipe, three -way pipe includes main pipe and the branch pipe shaped in the middle part of the one side wall of main pipe, beneficial effect lies in: the utility model discloses three -way pipe, fastening cap and the design of clamping piece, not only can realize the reliable sealing of three -way pipe joint part, effectively avoid the leakage of body fluid in the drainage process, make the drainage process more safe and clean, and can realize the flushing pipe operation in the drainage process by cooperating with the external syringe, effectively avoid the blockage in the drainage process, improve the efficiency of drainage, through the design of air bag, can effectively increase the pressure -resisting capacity of bag body, effectively avoid the damage of bag body in the storage and transportation process due to pressure, make the bag body more practical.

[0004] Although the existing body fluid suction storage drainage bag can solve the problem of poor pressure resistance of the drainage bag with a three-way pipe interface, which is easy to be damaged due to pressure in the storage and transportation process, and reduce the practicability of the drainage bag, the sterility in the whole operation process is a challenge, and any small loophole may lead to pollution. It is a big challenge to find a material that can guarantee sterility and be compatible with various liquids.

[0005] Therefore, the negative pressure sterile liquid suction and drainage device is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a negative pressure sterile liquid suction and drainage device to solve the problem that the sterility in the whole operation process is a challenge, and any small loophole may lead to pollution, and it is a big challenge to find a material that can guarantee sterility and be compatible with various liquids.

[0007] The utility model solves the technical scheme that adopts the technical scheme: a negative pressure sterile liquid suction and drainage device, including bag body, the top of bag body is connected with liquid inlet pipe, and the bottom of bag body is connected with liquid outlet pipe, and the outer side of liquid inlet pipe is connected with pipe cover,

[0008] The bag body is provided with scale marks on both front and back surfaces, and the inner wall of the bag body is arc-shaped, and the bag body is provided with creases on both sides.

[0009] Preferably, the liquid inlet pipe comprises a first threaded pipe, and the first threaded pipe is integrally arranged at the middle position of the liquid inlet pipe.

[0010] Preferably, the pipe cover comprises a connecting block and a needle, the connecting block is connected through the middle position of the pipe cover, and the needle is connected through the middle position of the connecting block.

[0011] Preferably, the pipe cover further comprises a sealing ring, and the sealing ring is bonded to the bottom of the pipe cover by glue.

[0012] Preferably, the middle position of the liquid outlet pipe is provided with a disposable self-closing valve, and the middle position of the disposable self-closing valve is provided with a valve.

[0013] Preferably, the bottom of the disposable self-closing valve is connected with a second threaded pipe, and the outer wall of the second threaded pipe is threadedly connected with a connecting pipe.

[0014] Preferably, the inside of the connecting pipe is connected through a communication pipe, and the end of the communication pipe away from the connecting pipe is communicated with a negative pressure pump, the outer wall of the negative pressure pump is electrically connected with a control button, and the middle position of the negative pressure pump is electrically connected with a display screen.

[0015] The utility model discloses the beneficial effect lies in:

[0016] 1. The utility model discloses a bag body, liquid inlet pipe, first threaded pipe, pipe cover, connecting block, needle and sealing ring cooperate together, the bag body is disposable negative pressure bag, and the front and back surfaces of the bag body are marked with scale marks, and the volume marks are 50ml, 100ml and 300ml respectively, the inner wall of the bag body is arc-shaped, can ensure that liquid flows smoothly, reduces the dead angle, avoids liquid residue, and the bag body is provided with creases on both sides, and the unused bag body can be folded and stored, reduces the floor area, and the outer walls of the liquid inlet pipe and the liquid outlet pipe are provided with sealing rings to prevent air and microorganism from invading.

[0017] 2. The utility model discloses disposable self-closing valve, valve, second threaded pipe, connecting pipe, communication pipe, negative pressure pump, control button and display screen cooperate together, when liquid enters the bag body and draws, the valve can be closed to prevent liquid backflow, the communication pipe is communicated with the negative pressure pump, the control button can control the negative pressure pump, and the data is displayed on the display screen surface, and the user can easily monitor the current negative pressure state, to prevent liquid backflow or leakage, and keep the sterile environment. DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0019] Fig. 1 It is a schematic diagram of the overall front view of the present application.

[0020] Fig. 2 It is a schematic diagram of the specific structure of the bag body of the present application.

[0021] Fig. 3 It is a schematic diagram of the specific structure of the pipe cover of the present application.

[0022] Fig. 4 It is a schematic diagram of the specific structure of the liquid outlet pipe of the present application.

[0023] In the figure: 1, bag body; 2, liquid inlet pipe; 201, first threaded pipe; 3, pipe cover; 301, connecting block; 302, needle; 303, sealing ring; 4, liquid outlet pipe; 5, disposable self-closing valve; 6, valve; 7, second threaded pipe; 8, connecting pipe; 9, communication pipe; 10, negative pressure pump; 11, control button; 12, display screen. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0025] Embodiment one

[0026] Please refer to Figs. 1 to 4As shown, a negative pressure sterile liquid suction and drainage device includes a bag body 1, the top of the bag body 1 is connected with a liquid inlet pipe 2, and the bottom of the bag body 1 is connected with a liquid outlet pipe 4, and the outer side of the liquid inlet pipe 2 is threadedly connected with a pipe cover 3; the front and back of the bag body 1 are provided with scale marks, and the inner wall of the bag body 1 is arc-shaped, and the two sides of the bag body 1 are provided with creases, the bag body 1 is a disposable negative pressure bag, the front and back of the bag body 1 are marked with scale marks, and the volume marks are 50ml, 100ml and 300ml respectively, the inner wall of the bag body 1 is arc-shaped, which can ensure smooth flow of liquid, reduce dead angles and avoid liquid residue, the two sides of the bag body 1 are provided with creases, the unused bag body 1 can be folded and stored, the floor area is reduced, the sterile environment is ensured, the liquid inlet pipe 2 comprises a first threaded pipe 201, and the middle position of the liquid inlet pipe 2 is integrally provided with the first threaded pipe 201, through such a setting, the inside of the pipe cover 3 is reserved with a threaded groove matched with the first threaded pipe 201, the pipe cover 3 comprises a connecting block 301 and a needle 302, the middle position of the pipe cover 3 is connected with the connecting block 301, and the middle position of the connecting block 301 is connected with the needle 302, the connecting block 301 and the needle 302 are aligned with the liquid inlet pipe 2, so that the needle 302 penetrates through the liquid inlet pipe 2 and is located at the bottom of the bag body 1, the pipe cover 3 further comprises a sealing ring 303, and the bottom of the pipe cover 3 is bonded with the sealing ring 303 through glue, the pipe cover 3 is closed in a rotating manner, and the sealing ring 303 is extruded when the pipe cover 3 is closed, thereby sealing the joint between the pipe cover 3 and the liquid inlet pipe 2.

[0027] Example two

[0028] As Figs. 1 to 4 shown, on the basis of example one, the utility model provides a technical scheme: the middle position of the liquid outlet pipe 4 is provided with a disposable self-closing valve 5, and the middle position of the disposable self-closing valve 5 is provided with a valve 6, the disposable self-closing valve 5 is controlled through the valve 6, when liquid enters the bag body 1 and is extracted, the valve 6 can be closed to prevent liquid backflow, the bottom of the disposable self-closing valve 5 is connected with a second threaded pipe 7, and the outer wall of the second threaded pipe 7 is threadedly connected with a connecting pipe 8, because the inner wall of the connecting pipe 8 is reserved with a thread matched with the outer wall of the second threaded pipe 7, the connecting pipe 8 can be closed through rotation, the inside of the connecting pipe 8 is connected with a communication pipe 9, and the end, away from the connecting pipe 8, of the communication pipe 9 is communicated with a negative pressure pump 10, the outer wall of the negative pressure pump 10 is electrically connected with a control button 11, and the middle position of the negative pressure pump 10 is electrically connected with a display screen 12, the connecting pipe 8 is communicated with the negative pressure pump 10 through the communication pipe 9, the control button 11 can control the negative pressure pump 10, and data is displayed on the surface of the display screen 12, so that users can easily monitor the current negative pressure state.

[0029] Working principle: first, the bag body 1 is a disposable negative pressure bag, the front and back of the bag body 1 is marked with scale mark, the volume mark is 50ml, 100ml and 300ml respectively, the inner wall of the bag body 1 is arc-shaped, which can ensure smooth liquid flow, reduce dead angle and avoid liquid residue, the bag body 1 is provided with creases on both sides, the unused bag body 1 can be folded and stored, reducing the floor area, when the pipe cover 3 is closed, the connecting block 301 is aligned with the needle head 302, the needle head 302 penetrates the liquid inlet pipe 2 and the bottom is located in the bag body 1, the inside of the pipe cover 3 is reserved with a thread groove matched with the first threaded pipe 201, the pipe cover 3 is closed by rotating, the sealing ring 303 is extruded when the pipe cover 3 is closed, sealing the interface between the pipe cover 3 and the liquid inlet pipe 2;

[0030] Secondly, the disposable self-closing valve 5 is controlled by the valve 6, when the liquid enters the bag body 1 and the extraction is completed, the valve 6 can be closed to prevent backflow of the liquid, when the connecting pipe 8 is connected with the second threaded pipe 7, the connecting pipe 8 is reserved with a thread groove matched with the outer wall of the second threaded pipe 7 in the inner wall, the connecting pipe 8 can be closed by rotating, the connecting pipe 8 is communicated with the negative pressure pump 10 through the communication pipe 9, the control button 11 can control the negative pressure pump 10, the data is displayed on the surface of the display screen 12, the user can easily monitor the current negative pressure state.

[0031] The above shows and describes the basic principle, main features and advantages of the present application. It should be understood by those skilled in the art that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A negative pressure aseptic fluid extraction and drainage device comprising a bag (1), characterized in that: The top of the bag body (1) is connected with a liquid inlet pipe (2), and the bottom of the bag body (1) is connected with a liquid outlet pipe (4), the outer side of the liquid inlet pipe (2) is threadedly connected with a pipe cover (3); the front and back of the bag body (1) are provided with scale marks, the inner wall of the bag body (1) is arc-shaped, and the two sides of the bag body (1) are provided with creases; the middle position of the liquid outlet pipe (4) is provided with a disposable self-closing valve (5), and the middle position of the disposable self-closing valve (5) is provided with a valve (6); the bottom of the disposable self-closing valve (5) is connected with a second threaded pipe (7), and the outer wall of the second threaded pipe (7) is threadedly connected with a connecting pipe (8); the inside of the connecting pipe (8) is connected with a communication pipe (9), and the end of the communication pipe (9) away from the connecting pipe (8) is communicated with a negative pressure pump (10), the outer wall of the negative pressure pump (10) is electrically connected with a control button (11), and the middle position of the negative pressure pump (10) is electrically connected with a display screen (12).

2. The negative pressure aseptic liquid suction and drainage device according to claim 1, characterized in that: The liquid inlet pipe (2) comprises a first threaded pipe (201), and the middle position of the liquid inlet pipe (2) is integrally provided with the first threaded pipe (201).

3. The negative pressure aseptic liquid suction and drainage device according to claim 1, characterized in that: The pipe cover (3) comprises a connecting block (301) and a needle (302), the middle position of the pipe cover (3) is connected with the connecting block (301), and the middle position of the connecting block (301) is connected with the needle (302).

4. The negative pressure aseptic liquid suction and drainage device according to claim 1, characterized in that: The pipe cover (3) further comprises a sealing ring (303), and the bottom of the pipe cover (3) is bonded with the sealing ring (303) by glue.

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