Suction device for ascites of hepatopathy in infectious departmentTechnical Field
The utility model relates to the technical field of medical appliances, in particular to an aspirator for ascites due to hepatic diseases in infectious department.
Background
The liver disease ascites aspirator is a device for extracting redundant fluid (ascites) from the abdominal cavity of a liver disease patient, wherein the ascites is caused by accumulation of fluid in the abdominal cavity due to the liver disease, and the aspirator can relieve symptoms of abdominal discomfort of the patient and help doctors to treat and manage the patient.
At present, after the suction is finished, a lot of liquid still remains in the pipeline at the front end of the existing liver ascites aspirator, and because the air pressure in the human body is different from the external air pressure to some extent, the negative pressure in the human body can lead the liquid to flow back into the body of a patient, and the safety of the patient can be seriously endangered, therefore, the liver ascites aspirator for infectious department is provided.
Disclosure of utility model
The application aims to solve the technical problem of how to prevent the liquid in the ascites aspirator pipeline from flowing back into the body of a patient.
The utility model aims to provide an aspirator for ascites due to hepatic diseases in infectious department, which aims to solve the problems in the prior art.
In order to achieve the purpose, the utility model provides the technical scheme that the ascites aspirator for the infectious department liver diseases comprises a liquid collecting barrel, wherein an exhaust pipe is arranged on the liquid collecting barrel and connected with external air exhaust equipment, a liquid inlet pipe is arranged on the liquid collecting barrel, and a puncture needle is arranged at one end of the liquid inlet pipe far away from the liquid collecting barrel, and the aspirator further comprises:
and the backflow prevention assembly is arranged in the liquid inlet pipe, and when the liquid pumping is finished, the liquid inlet pipe is sealed by the backflow prevention assembly to prevent liquid in the liquid inlet pipe from flowing back into the patient.
The measures for further optimizing the technical scheme are as follows:
In some embodiments, the backflow prevention assembly comprises a first fixing frame arranged in the puncture needle, a first ejector block is arranged on the first fixing frame, a first fixing plate is arranged in the liquid inlet pipe, a second spring is arranged on the first fixing plate, a first top cover is arranged at one end, away from the first fixing plate, of the second spring, and a fixing piece is arranged on the liquid inlet pipe.
In some embodiments, the fixing piece comprises a plurality of wanes arranged on the liquid inlet pipe, a fixing block is arranged on the inner side of each wane, and a first groove matched with the fixing block is formed in the pricker.
In some embodiments, the end of the liquid inlet pipe away from the liquid collecting barrel is provided with an adsorption component for fixing the puncture needle on a patient.
In some embodiments, the adsorption component comprises a shell arranged on the exhaust pipe, an air inlet pipe is arranged on the shell, two symmetrical air inlet branch pipes are arranged on the air inlet pipe, a first spring is arranged in the air inlet pipe, one end of the first spring is provided with a baffle, one end of the first spring, which is far away from the baffle, is arranged in the air inlet pipe, and one end, which is far away from the shell, of the air inlet pipe is provided with a cover which is connected with the liquid inlet pipe.
In some embodiments, the cover is made of plastic and is transparent.
In some embodiments, a second fixing frame is arranged in the liquid collecting barrel, a second top block is arranged on the second fixing frame, a second fixing plate is arranged in the liquid inlet pipe, a third spring is arranged on the second fixing plate, a second top cover is arranged on the third spring, a fixed shell is arranged on the liquid inlet pipe, a movable shell is arranged at the lower end of the fixed shell, a plurality of second grooves are formed in the movable shell, and a fourth spring is arranged in the second grooves.
The liquid collecting barrel has the advantages that when the liquid in the liquid collecting barrel is fully collected and the liquid collecting barrel needs to be replaced, the operation of the air extractor is stopped at the moment, the liquid in the liquid inlet pipe can flow back due to the air pressure difference inside and outside the body, the liquid inlet pipe can be pulled out a bit of distance outwards at the moment, the liquid inlet pipe moves to drive the first fixing plate and the first top cover to move, the first top cover loses the force of the first top block, the first top cover is attached to the first fixing plate again to seal the liquid inlet pipe, and the liquid is prevented from flowing back into a patient.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic cross-sectional view of an air inlet pipe structure of the utility model;
FIG. 3 is an enlarged schematic view of the structure A in FIG. 2 according to the present utility model;
FIG. 4 is a schematic view of the lancet structure of the present utility model;
FIG. 5 is a schematic cross-sectional view of a liquid inlet tube structure of the present utility model;
FIG. 6 is an enlarged schematic view of the structure of FIG. 5B according to the present utility model;
FIG. 7 is an exploded view of the anti-reflux assembly of the present utility model;
FIG. 8 is an enlarged schematic view of the structure of FIG. 7 at C in accordance with the present utility model;
FIG. 9 is a schematic view of a stationary housing structure according to the present utility model;
FIG. 10 is a schematic cross-sectional view of a stationary housing structure of the present utility model;
FIG. 11 is an enlarged schematic view of the structure of FIG. 10 at D in accordance with the present utility model;
FIG. 12 is an exploded view of a stationary housing structure of the present utility model;
fig. 13 is an enlarged schematic view of the structure at E in fig. 12 according to the present utility model.
The device comprises a 1-liquid collecting barrel, a 2-exhaust pipe, a 3-liquid inlet pipe, a 4-adsorption component, a 41-shell, a 42-air inlet pipe, a 43-air inlet branch pipe, a 44-cover, a 45-spring I, a 46-baffle, a 5-puncture needle, a 6-backflow prevention component, a 61-fixing frame I, a 62-jacking block I, a 63-fixing plate I, a 64-spring II, a 65-jacking plate I, a 7-fixing piece, a 71-rocker, a 72-fixing block, a 73-groove I, an 8-fixing frame II, a 9-jacking block II, a 10-fixing plate II, a 11-spring III, a 12-jacking plate II, a 13-fixing shell, a 14-spring IV, a 15-movable shell and a 16-groove II.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
Referring to fig. 1-8, the utility model provides a technical scheme that the ascites aspirator for infectious department liver diseases comprises a liquid collecting barrel 1, wherein an exhaust pipe 2 is arranged on the liquid collecting barrel 1, the exhaust pipe 2 is connected with external air exhaust equipment, a liquid inlet pipe 3 is arranged on the liquid collecting barrel 1, a puncture needle 5 is arranged at one end of the liquid inlet pipe 3 far away from the liquid collecting barrel 1, and the aspirator further comprises:
And the backflow prevention assembly 6 is arranged in the liquid inlet pipe 3, and when liquid suction is finished, the liquid inlet pipe 3 is closed by the backflow prevention assembly 6 to prevent liquid in the liquid inlet pipe 3 from flowing back into a patient.
The backflow prevention assembly 6 comprises a first fixing frame 61 fixedly connected in the puncture needle 5, a first ejector block 62 is fixedly connected to the first fixing frame 61, a first fixing plate 63 is fixedly connected to the liquid inlet pipe 3, a second spring 64 is fixedly connected to the first fixing plate 63, a first top cover 65 is fixedly connected to one end of the second spring 64 away from the first fixing plate 63, a fixing piece 7 is connected to the liquid inlet pipe 3, when the backflow prevention assembly is used, the puncture needle 5 and the cover 44 are firstly installed on the liquid inlet pipe 3, after the backflow prevention assembly is installed, the first ejector block 62 in the puncture needle 5 can jack the first top cover 65, liquid can flow through between the first top cover 65 and the first fixing plate 63 and between the first ejector block 62 and the first fixing plate 63, when the liquid in the liquid collecting barrel 1 is full, the operation of the air extractor is stopped at the moment, the liquid in the liquid inlet pipe 3 can flow back due to the air pressure difference between the inside and outside of a human body, the liquid inlet pipe 3 can be pulled out a little distance, the liquid inlet pipe 3 can be moved to drive the first fixing plate 63 and the first top cover 65 to lose movement, the first top cover 65, the first ejector block 62 can be abutted against the first ejector block 62, and the liquid can be prevented from flowing back into the liquid inlet pipe 3.
The fixing piece 7 comprises a plurality of warped plates 71 fixedly connected to the liquid inlet pipe 3, a fixing block 72 is fixedly connected to the inner side of the warped plates 71, a first groove 73 matched with the fixing block 72 is formed in the puncture needle 5, when the puncture needle 5 and the cover 44 are installed, the puncture needle 5 is inserted into the liquid inlet pipe 3, then the cover 44 is installed on the outer side of the liquid inlet pipe 3, when the cover 44 is installed, the cover 44 can squeeze the warped plates 71 on the outer side of the liquid inlet pipe 3, the warped plates 71 are attached to the outer wall of the liquid inlet pipe 3, meanwhile, the fixing block 72 is squeezed into the first groove 73 in the puncture needle 5, and the puncture needle 5 and the cover 44 are fixed to the liquid inlet pipe 3, so that medical staff can install and detach conveniently.
One end of the liquid inlet pipe 3, which is far away from the liquid collecting barrel 1, is connected with an adsorption component 4 for fixing the puncture needle 5 on a patient.
The adsorption component 4 comprises a shell 41 fixedly connected to the exhaust pipe 2, an air inlet pipe 42 is fixedly connected to the shell 41, two symmetrical air inlet branch pipes 43 are fixedly connected to the air inlet pipe 42, a first spring 45 is fixedly connected to the air inlet pipe 42, one end of the first spring 45 is fixedly connected to a baffle 46, one end of the first spring 45, which is far away from the baffle 46, is fixedly connected to the air inlet pipe 42, one end of the air inlet pipe 42, which is far away from the shell 41, is fixedly connected to the liquid inlet pipe 3, in order to prevent the puncture needle 5 from falling off due to shaking during use, the air in the liquid collecting barrel 1 and the shell 41 is pumped out by the operation of the air pumping equipment, the air in the shell 41 is continuously pumped out by the continuous operation of the air pumping equipment after the operation of the liquid collecting barrel 1, the baffle 46 is moved by negative pressure to squeeze the first spring 45, when the baffle 46 moves through the air inlet branch pipe 43, the air extraction device starts to extract air in the cover 44, so that the cover 44 is tightly attached to a patient, the situation that the puncture needle 5 falls off from the patient due to shaking is avoided, when the puncture needle 5 is inserted into the patient to extract liquid, the negative pressure in the liquid collecting barrel 1 can suck the liquid in the patient, then the air pressure in the liquid collecting barrel 1 is recovered along with the liquid, the baffle 46 can return to the original position to block the air inlet branch pipe 43 under the action of the first spring 45, the cover 44 can always keep the negative pressure state to be tightly attached to the patient, and when a medical staff changes the air extraction device of the liquid collecting barrel 1 to stop running, the cover 44 is always attached to the patient, and the air in the cover 44 is not required to be extracted again.
The cover 44 is made of plastic and transparent, so that the medical staff can observe and insert needles conveniently.
Example 2
Referring to fig. 1-13, the utility model provides a technical scheme of an aspirator for ascites due to hepatic diseases in infectious department, and an example 2 is optimized based on an example 1.
The liquid collecting barrel 1 is internally fixedly connected with a second fixing frame 8, a second ejector block 9 is fixedly connected to the second fixing frame 8, a second fixing plate 10 is fixedly connected to the liquid inlet pipe 3, a third spring 11 is fixedly connected to the second fixing plate 10, a second top cover 12 is fixedly connected to the third spring 11, a fixed 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 second grooves 16 are formed in the movable shell 15, a fourth spring 14 is fixedly connected to the second grooves 16, in order to prevent liquid from flowing out along the liquid inlet pipe 3 when the liquid collecting barrel 1 is replaced, when a medical staff pulls out the liquid inlet pipe 3 from the liquid collecting barrel 1, the second fixing plate 10 and the second top cover 12 are driven to move, the second top cover 12 loses the force of the second ejector block 9, the second top cover is attached to the second fixing plate 10 again to seal the liquid inlet pipe 3, and liquid flowing out along the liquid inlet pipe 3 when the liquid inlet pipe 3 is replaced.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.