Drainage bag capable of automatically exhausting and stopping liquid

Abstract

The utility model discloses a drainage bag capable of automatically exhausting and stopping liquid, which solves the problem that the volume of the drainage bag is reduced due to the fact that gas is easily stored in the drainage bag in the prior art, and can automatically block and stop liquid when the drainage bag is full of drainage liquid. According to the technical scheme, the infusion bag is characterized by comprising a bag body, a liquid inlet, a liquid outlet and an exhaust valve, the liquid inlet is located above the bag body and connected with an upper drainage tube, the liquid outlet is located below the bag body and connected with a lower drainage tube, the upper drainage tube and the lower drainage tube are each provided with a control valve, and the exhaust valve comprises a shell, a sealing plate and a linkage structure; the shell is arranged above the bag body, an exhaust channel is arranged in the shell, the shell is provided with an air outlet, the sealing plate is connected with the air outlet through a reset piece, and when liquid in the bag body enters the shell, the linkage structure automatically seals the air outlet. By utilizing the buoyancy effect of liquid and the matching of the linkage structure, the internal channel of the shell is automatically blocked, so that the function of automatically stopping liquid is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical field, concretely is a kind of automatic exhaust liquid-stopping drainage bag. BACKGROUND

[0002] Gastrointestinal patients accumulate excessive residual amount in vivo, so gastrointestinal decompression is often used, and gastrointestinal decompression is a common treatment method, in which a catheter is inserted into the oral cavity or nasal cavity, and a disposable drainage bag is connected to the outer end of the catheter to suck out the accumulated gas and liquid in the gastrointestinal tract, thereby reducing the residual amount in the stomach of the patient and reducing the pressure in the gastrointestinal tract.

[0003] Because the actual drainage object contains not only liquid but also a lot of gas, the gas accumulates in the upper part of the drainage bag, which occupies a part of the use space of the drainage bag, resulting in a decrease in the actual drainage capacity, and therefore an automatic exhaust liquid-stopping drainage bag is needed to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model discloses a kind of automatic exhaust liquid-stopping drainage bags, solve the problem that the capacity of drainage bag is reduced by gas stored in the drainage bag of prior art, and can be automatically blocked when drainage liquid is full.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] An automatic exhaust liquid-stopping drainage bag includes a bag body, a liquid inlet, a liquid outlet, and an exhaust valve. The liquid inlet is located above the bag body and is connected to an upper drainage tube. The liquid outlet is located below the bag body and is connected to a lower drainage tube. Both the upper drainage tube and the lower drainage tube are equipped with control valves. The exhaust valve includes a housing, a sealing plate, and a linkage structure. The housing is located above the bag body, and an exhaust passage is provided inside the housing. The housing is equipped with an air outlet, and the sealing plate is connected to the air outlet through a return element. When the liquid in the bag body enters the housing, the linkage structure automatically closes the air outlet.

[0007] Compared with the prior art, the automatic exhaust liquid-stopping drainage bag with the above technical scheme has the following beneficial effects:

[0008] The automatic exhaust liquid-stopping drainage bag of the utility model uses the rising gas to automatically push the sealing plate to open the air outlet, temporarily connects the inside of the housing with the outside, and uses the return element to drive the sealing plate to automatically reseal the air outlet, achieving the purpose of automatic exhaust. The buoyancy of the liquid and the cooperation of the linkage structure achieve automatic sealing of the passage inside the housing, thereby realizing the function of automatic liquid stopping.

[0009] Preferably, the linkage structure comprises a floating ball, a connecting rod and a limiting member, the shell is provided with an air outlet groove, an air passage groove and a ball groove from top to bottom, the floating ball is provided with a perforation, the air outlet groove, the air passage groove and the perforation form an exhaust passage of the shell, the limiting member is located in the air outlet groove, the limiting member is located at the end of the connecting rod away from the floating ball, and the limiting member is synchronous with the air outlet groove when the floating ball rises to block the air passage groove. By using the cooperation of the floating ball and the liquid self-floating force, and the connecting relationship of the limiting member and the floating ball, the limiting member can realize synchronous blocking function while the liquid level rises to push the floating ball; and by using the cooperation of the exhaust passage and the remaining space in the ball groove, the use purpose of automatic exhaust is met while meeting the liquid stopping function.

[0010] Preferably, the perforation is located at the edge of the floating ball, the connecting rod adopts a square rod structure, a rod groove is arranged between the air outlet groove and the ball groove, and the rod groove is not communicated with the air passage groove. By arranging the perforation at a special position, the use requirements of exhaust and the floating ball blocking the air passage groove can be met at the same time; at the same time, by using the square connecting rod which is not a cylinder, the problem of independent rotation of the connecting rod and the floating ball can be avoided, thereby avoiding the problem that the rotation of the floating ball affects the actual exhaust effect, and the air passage groove can be effectively blocked in the liquid stopping state.

[0011] Preferably, the limiting member is a stop cone movably arranged in the air outlet groove, the shape of the air outlet groove is adapted to the stop cone, and the tip of the stop cone faces the air outlet. When the floating ball contacts the air passage groove, the air outlet groove limits the upward movement of the stop cone. Since the air outlet groove and the tip of the stop cone are located on one side of the air outlet, the contact surface between the stop cone and the inner wall of the air outlet groove will gradually increase while the floating ball rises, until the stop cone is limited by the air outlet groove, thereby realizing the purpose of automatic blocking of the air outlet groove by the limiting member.

[0012] Preferably, when the stop cone contacts the air outlet groove, the tip of the stop cone does not contact the sealing plate. In the automatic liquid stopping state, the sealing plate can still maintain the blocking state, thereby realizing further blocking of the liquid in the shell, to increase the sealing effect in the liquid stopping state.

[0013] Preferably, the reset member is an elastic sheet, and one end of the sealing plate is connected to the air outlet through the elastic sheet. By using the reset structure of the elastic sheet and the function of allowing the sealing plate to be appropriately turned over, the purpose of automatic sealing after exhaust is realized.

[0014] Preferably, the length of the connecting rod exceeds the groove depth of the rod groove, and when the floating ball sinks, the limiting member does not contact the air passage groove. In the automatic exhaust state, due to the special length of the connecting rod, both ends of the air passage groove are not blocked, thereby effectively ensuring the smoothness of the exhaust passage.

[0015] Preferably, a fixing belt or a positioning hook is provided above the bag body. The fixing structure on the bag body is used to achieve stable placement of the bag body, so that the bag body is stably in a vertical state, so as to fully utilize the use space inside the bag body and facilitate the automatic discharge of gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Fig. 1 This is a structural schematic diagram of an embodiment of the automatic air-degassing and liquid-stopping drainage bag of the present utility model.

[0017] Fig. 2 Schematic diagram of the cross-sectional structure of the exhaust valve in the embodiment.

[0018] Fig. 3 Schematic diagram of the cross-sectional structure of the exhaust valve (liquid-stop state) in the embodiment.

[0019] Figure numerals: 1. bag body; 2. liquid inlet; 20. upper drainage pipe; 3. liquid outlet; 30. lower drainage pipe; 4. control valve; 5. shell; 50. air outlet; 51. air outlet groove; 52. breathable groove; 53. ball groove; 54. rod groove; 6. sealing plate; 70. float; 700. perforation; 71. connecting rod; 72. cut-off cone; 8. elastic sheet; 9. fixing belt. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] like Figs. 1 to 3 The automatic air-exhaust and liquid-stopping drainage bag shown comprises a bag body 1, a liquid inlet 2, a liquid outlet 3 and an air-exhaust valve.

[0022] The liquid inlet 2 is located above the bag body 1 and is connected to the upper drainage tube 20. The liquid outlet 3 is located below the bag body 1 and is connected to the lower drainage tube 30. Both the upper drainage tube 20 and the lower drainage tube 30 are provided with a control valve 4. The control valve 4 can be a stop clamp at an existing catheter.

[0023] In order to achieve stable placement of the bag body 1, a fixing belt 9 or a positioning hook is further provided on the bag body 1. In this embodiment, the structure of the fixing belt 9 is adopted.

[0024] The exhaust valve includes a shell 5, a sealing plate 6 and a linkage structure. The shell 5 is arranged above the bag body 1, and an exhaust channel is provided inside the shell 5. The shell 5 is provided with an air outlet 50. The sealing plate 6 is connected to the air outlet 50 through a reset member. When the liquid in the bag body 1 enters the shell 5, the linkage structure automatically closes the air outlet 50.

[0025] The linkage structure comprises a floating ball 70, a connecting rod 71 and a limiting piece. The shell 5 is provided with an air outlet groove 51, an air permeation groove 52 and a ball groove 53 for the floating ball 70 to move up and down from top to bottom. The floating ball 70 is provided with a perforation 700 for air flow. The air outlet groove 51, the air permeation groove 52 and the perforation 700 form an air exhaust passage of the shell 5. The limiting piece is located in the air outlet groove 51 and is arranged at the end of the connecting rod 71 away from the floating ball 70. When the floating ball 70 rises to block the air permeation groove 52, the limiting piece synchronously blocks the air outlet groove 51.

[0026] In order to meet the ventilation requirement while meeting the liquid stopping function, the perforation 700 is located at the position close to the edge of the floating ball 70.

[0027] In order to avoid the influence of the self-rotation of the floating ball 70 on the ventilation effect, the rotation state of the floating ball 70 is limited in the embodiment, that is, the connecting rod 71 adopts a square rod structure. The rod groove 54 corresponding to the connecting rod 71 is arranged between the air outlet groove 51 and the ball groove 53, and the rod groove 54 is not communicated with the air permeation groove 52.

[0028] The limiting piece is a cutoff cone 72 movably arranged in the air outlet groove 51. The shape of the air outlet groove 51 is adapted to the cutoff cone 72, and the tip of the cutoff cone 72 faces the air outlet 50. When the floating ball 70 contacts the air permeation groove 52, the air outlet groove 51 limits the cutoff cone 72 from continuing to move upward.

[0029] In order to increase the sealing property of the liquid stopping state, the structure of the cutoff cone 72 is limited in the embodiment. When the cutoff cone 72 contacts the air outlet groove 51, the tip of the cutoff cone 72 does not contact the sealing plate 6.

[0030] In order to avoid the cutoff cone 72 from blocking the ventilation passage, the length of the connecting rod 71 exceeds the groove depth of the rod groove 54. When the floating ball 70 sinks, the limiting piece does not contact the air permeation groove 52.

[0031] The reset piece can adopt a volute spring or an elastic sheet 8 structure. In the embodiment, in order to avoid the influence of too large reset strength on the opening and closing of the sealing plate 6, the reset piece adopts the elastic sheet 8 with general reset strength. One end of the sealing plate 6 is connected to the air outlet 50 through the elastic sheet 8.

[0032] The following is the use mode of the embodiment:

[0033] In normal drainage, gastric juice is collected through the upper drainage tube 20 and limited by the flow stop clamp, and when gastric juice needs to be discharged, the lower control valve 4 is opened and discharged through the lower drainage tube 30. In use, the gas in the drainage bag passes through the perforations 700 on the floating ball 70, the ball groove 53, the gas permeable groove 52 and the gas outlet groove 51 in turn, and the gas passes through the gas outlet 50 after bypassing the two sides of the cutoff cone 72, and the elastic plate is pushed open and discharged to the outside. When the liquid level in the bag body 1 rises to the position where the floating ball 70 is in contact, the floating ball 70 is lifted by the buoyancy, and the connecting rod 71 and the cutoff cone 72 are lifted, the cutoff cone 72 is in contact with the inner wall of the gas outlet groove 51, so that the lifting action of the floating ball 70, the connecting rod 71 and the cutoff cone 72 is limited, at this time, because the connecting rod 71 is a square rod structure, the floating ball 70 cannot rotate autonomously and can effectively block the gas permeable groove 52, and at the same time the cutoff cone 72 blocks between the gas outlet groove 51 and the gas outlet 50, realizing the closure of the internal passage of the shell 5, avoiding the liquid to be discharged outward.

[0034] The above is the preferred embodiment of the present application, and those skilled in the art can make several modifications and improvements without departing from the principles of the present application, which should also be considered as the protection scope of the present application.

Claims

1. An automatic air vent and liquid trap drainage bag, characterized by: The utility model provides a bag body (1), liquid inlet (2), liquid outlet (3) and exhaust valve, liquid inlet (2) is located the top of bag body (1) and is connected with upper drainage tube (20), and liquid outlet (3) is located the bottom of bag body (1) and is connected with lower drainage tube (30), and upper drainage tube (20) and lower drainage tube (30) are equipped with control valve (4), the exhaust valve includes shell (5), sealing plate (6) and linkage structure, shell (5) is equipped with the top of bag body (1), and shell (5) inside is equipped with exhaust passage, shell (5) is equipped with gas outlet (50), sealing plate (6) is connected with gas outlet (50) through reset piece, when the liquid in bag body (1) enters shell (5), linkage structure automatically closes gas outlet (50).

2. The automatic air-vented liquid-trapped drainage bag of claim 1, wherein: The linkage structure includes a floating ball (70), a connecting rod (71) and a limiting piece, the shell (5) is provided with an exhaust groove (51), an air passage (52) and a ball groove (53) for the floating ball (70) to move up and down from top to bottom, and the floating ball (70) is provided with a perforation (700) for air flow to pass through, the exhaust groove (51), the air passage (52) and the perforation (700) together form the exhaust passage of the shell (5), the limiting piece is located in the exhaust groove (51), and the limiting piece is arranged at the end of the connecting rod (71) away from the floating ball (70), when the floating ball (70) rises to block the air passage (52), the limiting piece synchronously blocks the exhaust groove (51).

3. The automatic air-vented liquid-stopped drainage bag of claim 2, wherein: The perforation (700) is located near the edge of the floating ball (70), the connecting rod (71) is in a square rod structure, a rod groove (54) is arranged between the exhaust groove (51) and the ball groove (53) and is adapted to the connecting rod (71), and the rod groove (54) is not communicated with the air passage (52).

4. The automatic air-vented liquid-trapped drainage bag of claim 3, wherein: The limiting piece is a cutoff cone (72) movably arranged in the exhaust groove (51), the shape of the exhaust groove (51) is adapted to the cutoff cone (72), and the tip of the cutoff cone (72) faces the gas outlet (50), when the floating ball (70) contacts the air passage (52), the exhaust groove (51) limits the cutoff cone (72) to continue moving upward.

5. The automatic air-vented liquid-trapped drainage bag of claim 4, wherein: When the cutoff cone (72) contacts the exhaust groove (51), the tip of the cutoff cone (72) does not contact the sealing plate (6).

6. The automatic air-vented liquid-stopped drainage bag of claim 1, wherein: The reset piece is an elastic sheet (8), one end of the sealing plate (6) is connected with the gas outlet (50) through the elastic sheet (8).

7. The automatic air-vented liquid-stopped drainage bag of claim 3, wherein: The length of the connecting rod (71) exceeds the groove depth of the rod groove (54), when the floating ball (70) sinks, the limiting piece does not contact the air passage (52).

8. The automatic air-liquid drainage bag according to any one of claims 1 to 7, characterized in that: A fixing belt (9) or a positioning hook is further arranged above the bag body (1).

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