An infectious liver disease ascites aspirator

Abstract

This utility model relates to the field of medical device technology, specifically a suction device for ascites in infectious disease patients. It includes a collection tank with an air extraction tube connected to an external air extraction device. An inlet tube is also provided on the collection tank, with a needle at the end of the inlet tube furthest from the collection tank. An anti-backflow component is also included, located inside the inlet tube. When the collection tank is full and needs replacement, the air extraction device stops operating. The liquid in the inlet tube may backflow due to the pressure difference between the inside and outside of the body. At this point, the inlet tube can be pulled out slightly. This movement of the inlet tube causes the fixing plate and top cover to move. The top cover, losing the force of the top block, re-fits the fixing plate, sealing the inlet tube and preventing liquid backflow into the patient's body.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to an ascites aspirator for liver diseases in the infectious department. Background Art

[0002] The Ascites Aspirator for Liver Disease is a device used to extract excess fluid (ascites) from the abdominal cavity of patients with liver disease. Ascites is caused by the accumulation of fluid in the abdominal cavity due to liver disease. The use of the aspirator can relieve the patient's abdominal discomfort and help doctors treat and manage patients.

[0003] At present, after the existing liver ascites aspirator is completed, a lot of liquid will still remain in the front end of the pipe. Since the air pressure inside the human body is different from the external air pressure, the negative pressure inside the human body will cause the liquid to flow back into the patient's body, which may seriously endanger the patient's safety. For this reason, we propose an infectious liver disease ascites aspirator. Utility Model Content

[0004] A technical problem to be solved by the present application is: how to prevent the liquid in the ascites aspirator pipeline from flowing back into the patient's body.

[0005] The utility model aims to provide an ascites aspirator for liver diseases in infectious department to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an infectious liver disease ascites aspirator, comprising a liquid collecting barrel, a suction pipe is arranged on the liquid collecting barrel, the suction pipe is connected to an external suction device, a liquid inlet pipe is arranged on the liquid collecting barrel, a needle is arranged at one end of the liquid inlet pipe away from the liquid collecting barrel, and also includes:

[0007] The anti-backflow component is arranged in the liquid inlet tube. When the liquid extraction is completed, the anti-backflow component is used to close the liquid inlet tube to prevent the liquid in the liquid inlet tube from flowing back into the patient's body.

[0008] The measures to further optimize this technical solution are:

[0009] In some embodiments, the anti-backflow assembly includes a fixing frame arranged in the puncture needle, a top block is arranged on the fixing frame, a fixing plate is arranged in the liquid inlet pipe, a spring is arranged on the fixing plate, a top cover is arranged at one end of the spring away from the fixing plate, and a fixing member is arranged on the liquid inlet pipe.

[0010] In some embodiments, the fixing member includes a plurality of seesaw plates arranged on the liquid inlet tube, a fixing block is arranged on the inner side of the seesaw plates, and a groove 1 cooperating with the fixing block is formed on the puncture needle.

[0011] In some embodiments, an adsorption component is provided at one end of the liquid inlet tube away from the liquid collecting barrel to fix the puncture needle on the patient.

[0012] In some embodiments, the adsorption assembly includes a shell arranged on the exhaust pipe, an air intake pipe is arranged on the shell, two symmetrical air intake branches are arranged on the air intake pipe, a spring is arranged in the air intake pipe, a baffle is arranged at one end of the spring, an end of the spring away from the baffle is arranged in the air intake pipe, a cover is arranged at one end of the air intake pipe away from the shell, and the cover is connected to the liquid inlet pipe.

[0013] In some embodiments, the cover is made of plastic and is transparent.

[0014] In some embodiments, a fixing frame 2 is provided in the liquid collecting barrel, a top block 2 is provided on the fixing frame 2, a fixing plate 2 is provided in the liquid inlet pipe, a spring 3 is provided on the fixing plate 2, a top cover 2 is provided on the spring 3, a fixed shell is provided on the liquid inlet pipe, a movable shell is provided at the lower end of the fixed shell, a plurality of grooves 2 are opened on the movable shell, and a spring 4 is provided in the grooves 2.

[0015] The utility model has at least the following beneficial effects: when the liquid in the liquid collecting barrel is full and needs to be replaced, the vacuum device stops running, and the liquid in the liquid inlet pipe will flow back due to the air pressure difference between the inside and outside of the body. At this time, the liquid inlet pipe can be pulled outward a certain distance, and the movement of the liquid inlet pipe drives the fixed plate 1 and the top cover 1 to move. The top cover 1 loses the force of the top block 1 and fits with the fixed plate 1 again to seal the liquid inlet pipe, thereby preventing the liquid from flowing back into the patient's body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the air intake pipe structure of the utility model;

[0018] Figure 3 For this utility model Figure 2 A schematic diagram of the structure enlargement in the middle;

[0019] Figure 4 This is a schematic diagram of the structure of the needle of the utility model;

[0020] Figure 5 This is a schematic cross-sectional view of the liquid inlet pipe structure of the utility model;

[0021] Figure 6 For this utility model Figure 5 A magnified schematic diagram of the structure at B in the middle;

[0022] Figure 7This is a schematic diagram of the explosion of the anti-backflow component structure of the utility model;

[0023] Figure 8 For this utility model Figure 7 A magnified schematic diagram of the structure at C in the middle;

[0024] Fig. 9 This is a schematic diagram of the fixed shell structure of the utility model;

[0025] Fig.10 This is a cross-sectional schematic diagram of the fixed shell structure of the utility model;

[0026] Fig.11 For this utility model Fig.10 A magnified schematic diagram of the structure at D in the middle;

[0027] Fig.12 This is an exploded schematic diagram of the fixed shell structure of the utility model;

[0028] Fig.13 For this utility model Fig.12 Enlarged schematic diagram of the structure at point E in the middle.

[0029] In the figure: 1-liquid collecting barrel; 2-exhaust pipe; 3-liquid inlet pipe; 4-adsorption component; 41-housing; 42-inlet pipe; 43-inlet branch pipe; 44-hood; 45-spring one; 46-baffle; 5-thorn needle; 6-anti-backflow component; 61-fixing frame one; 62-top block one; 63-fixing plate one; 64-spring two; 65-top cover one; 7-fixing piece; 71-rocker; 72-fixing block; 73-groove one; 8-fixing frame two; 9-top block two; 10-fixing plate two; 11-spring three; 12-top cover two; 13-fixing shell; 14-spring four; 15-movable shell; 16-groove two. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Example 1

[0032] See also Figure 1-8 The utility model provides a technical solution: an infectious liver disease ascites aspirator, comprising a liquid collecting barrel 1, a suction pipe 2 is arranged on the liquid collecting barrel 1, the suction pipe 2 is connected to an external suction device, a liquid inlet pipe 3 is arranged on the liquid collecting barrel 1, and a puncture needle 5 is arranged at one end of the liquid inlet pipe 3 away from the liquid collecting barrel 1, and also includes:

[0033] The anti-reflux component 6 is arranged in the liquid inlet tube 3. When the liquid extraction is completed, the anti-reflux component 6 is used to close the liquid inlet tube 3 to prevent the liquid in the liquid inlet tube 3 from flowing back into the patient's body.

[0034] The backflow prevention assembly 6 includes a fixing frame 61 fixedly connected to the inside of the puncture needle 5, a top block 62 fixedly connected to the fixing frame 61, a fixing plate 63 fixedly connected to the inside of the liquid inlet pipe 3, a spring 64 fixedly connected to the fixing plate 63, a top cover 65 fixedly connected to the end of the spring 64 away from the fixing plate 63, and a fixing member 7 connected to the liquid inlet pipe 3. When in use, the puncture needle 5 and the cover 44 are first installed on the liquid inlet pipe 3. After installation, the top block 62 in the puncture needle 5 will lift the top cover 65, so that the liquid can be discharged from the top cover. When the liquid in the collecting barrel 1 is full and needs to be replaced, the air pump stops running and the liquid in the liquid inlet pipe 3 will flow back due to the pressure difference between the inside and outside of the body. At this time, the liquid inlet pipe 3 can be pulled out a little distance. The movement of the liquid inlet pipe 3 drives the fixed plate 63 and the top cover 65 to move. The top cover 65 loses the force of the top block 62 and fits with the fixed plate 63 again to seal the liquid inlet pipe 3 to prevent the liquid from flowing back into the patient's body.

[0035] The fixing member 7 includes a plurality of seesaws 71 fixedly connected to the liquid inlet pipe 3, a fixing block 72 is fixedly connected to the inner side of the seesaw 71, and a groove 73 matching with the fixing block 72 is provided on the puncture needle 5. When installing the puncture needle 5 and the cover 44, the puncture needle 5 is first inserted into the liquid inlet pipe 3, and then the cover 44 is installed to the outside of the liquid inlet pipe 3. When installing the cover 44, the cover 44 will squeeze the plurality of seesaws 71 on the outside of the liquid inlet pipe 3, so that the seesaw 71 fits with the outer wall of the liquid inlet pipe 3, and at the same time, the fixing block 72 is squeezed into the groove 73 on the puncture needle 5, and the puncture needle 5 and the cover 44 are fixed to the liquid inlet pipe 3, which can be convenient for medical staff to install and disassemble.

[0036] One end of the liquid inlet tube 3 away from the liquid collecting barrel 1 is connected to an adsorption component 4 for fixing the puncture needle 5 on the patient.

[0037] The adsorption component 4 includes a shell 41 fixedly connected to the exhaust pipe 2, the shell 41 is fixedly connected to an air intake pipe 42, the air intake pipe 42 is fixedly connected to two symmetrical air intake branches 43, a spring 45 is fixedly connected in the air intake pipe 42, one end of the spring 45 is fixedly connected to a baffle 46, the end of the spring 45 away from the baffle 46 is fixedly connected in the air intake pipe 42, the end of the air intake pipe 42 away from the shell 41 is fixedly connected to a cover 44, the cover 44 is fixedly connected to the liquid inlet pipe 3, in order to prevent the needle 5 from falling off due to shaking during use, the operation of the air extraction device will extract the air in the liquid collecting barrel 1 and the shell 41, so that the liquid collecting barrel 1 is in a negative pressure state, and then the air extraction device continues to operate, and the air in the shell 41 will continue to be extracted, and the negative pressure will The baffle 46 moves to squeeze the spring 45. When the baffle 46 moves over the air inlet branch pipe 43, the vacuum device starts to extract the air in the cover 44, so that the cover 44 is close to the patient, thereby preventing the needle 5 from falling off the patient due to shaking. When the needle 5 is inserted into the patient's body to extract liquid, the negative pressure in the liquid collecting barrel 1 will suck the liquid out of the patient's body. After that, the air pressure in the liquid collecting barrel 1 will be restored as the liquid enters, and the baffle 46 will return to its original position under the action of the spring 45 to block the air inlet branch pipe 43. The cover 44 can always maintain a negative pressure state and be close to the patient. When the medical staff replaces the liquid collecting barrel 1 and the vacuum device stops running, the cover 44 is always close to the patient, and there is no need to extract the air in the cover 44 again.

[0038] The cover 44 is made of plastic and is transparent, which is convenient for medical staff to observe and perform acupuncture.

[0039] Example 2

[0040] See also Figure 1-13 The utility model provides a technical solution: an ascites aspirator for liver disease in infectious department, and embodiment 2 is an optimization based on embodiment 1.

[0041] A fixing frame 28 is fixedly connected in the liquid collecting barrel 1, a top block 29 is fixedly connected on the fixing frame 28, a fixing plate 210 is fixedly connected in the liquid inlet pipe 3, a spring 3 11 is fixedly connected on the fixing plate 210, a top cover 212 is fixedly connected on the spring 311, a fixing shell 13 is fixedly connected to the liquid inlet pipe 3, a movable shell 15 is movably connected to the lower end of the fixed shell 13, a plurality of grooves 216 are provided on the movable shell 15, a spring 4 14 is fixedly connected in the grooves 216, in order to prevent the liquid from flowing out along the liquid inlet pipe 3 when the liquid collecting barrel 1 is replaced, when the medical staff pulls the liquid inlet pipe 3 off the liquid collecting barrel 1, the liquid inlet pipe 3 moves to drive the fixing plate 210 and the top cover 212 to move, the top cover 212 loses the force of the top block 219, and fits with the fixing plate 210 again to close the liquid inlet pipe 3, thereby preventing the liquid from flowing out along the liquid inlet pipe 3 when the liquid collecting barrel 1 is replaced.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An infectious liver disease ascites aspirator, comprising a liquid collecting barrel (1), the liquid collecting barrel (1) is provided with an air extraction pipe (2), the air extraction pipe (2) is connected to an external air extraction device, the liquid collecting barrel (1) is provided with a liquid inlet pipe (3), the liquid inlet pipe (3) is provided with a needle (5) at one end away from the liquid collecting barrel (1), characterized in that: Also included are: a backflow prevention component (6), wherein the backflow prevention component (6) is arranged in the liquid inlet pipe (3), and when the liquid extraction is completed, the backflow prevention component (6) is used to seal the liquid inlet pipe (3) to prevent the liquid in the liquid inlet pipe (3) from flowing back into the patient's body; The anti-backflow assembly (6) comprises a fixing frame (61) arranged in the puncture needle (5), a top block (62) is arranged on the fixing frame (61), a fixing plate (63) is arranged in the liquid inlet pipe (3), a spring (64) is arranged on the fixing plate (63), a top cover (65) is arranged at one end of the spring (64) away from the fixing plate (63), and a fixing member (7) is arranged on the liquid inlet pipe (3); The fixing member (7) comprises a plurality of seesaw plates (71) arranged on the liquid inlet pipe (3), a fixing block (72) is arranged inside the seesaw plates (71), and a groove (73) matching with the fixing block (72) is provided on the puncture needle (5); An adsorption component (4) is provided at one end of the liquid inlet pipe (3) away from the liquid collecting barrel (1) for fixing the puncture needle (5) on the patient.

2. The infectious liver disease ascites aspirator according to claim 1, characterized in that: The adsorption assembly (4) comprises a shell (41) arranged on the exhaust pipe (2), an air intake pipe (42) being arranged on the shell (41), two symmetrical air intake branches (43) being arranged on the air intake pipe (42), a spring (45) being arranged in the air intake pipe (42), a baffle (46) being arranged at one end of the spring (45), an end of the spring (45) away from the baffle (46) being arranged in the air intake pipe (42), a cover (44) being arranged at one end of the air intake pipe (42) away from the shell (41), and the cover (44) being connected to the liquid inlet pipe (3).

3. The ascites aspirator for liver diseases in infectious diseases according to claim 2, characterized in that: The cover (44) is made of plastic and is transparent.

4. The infectious liver disease ascites aspirator according to claim 3, characterized in that: A second fixing frame (8) is arranged in the liquid collecting barrel (1), a second top block (9) is arranged on the second fixing frame (8), a second fixing plate (10) is arranged in the liquid inlet pipe (3), a third spring (11) is arranged on the second fixing plate (10), a second top cover (12) is arranged on the third spring (11), a fixed shell (13) is arranged on the liquid inlet pipe (3), a movable shell (15) is arranged at the lower end of the fixed shell (13), a plurality of second grooves (16) are opened on the movable shell (15), and a fourth spring (14) is arranged in the second grooves (16).

Images