CN219398536U

CN219398536U - Precise liquid medicine filter for medical infusion apparatus

Info

Publication number: CN219398536U
Application number: CN202320722953.3U
Authority: CN
Inventors: 雷冰; 陈浩; 刘涛
Original assignee: Sichuan Prius Biotechnology Co ltd
Current assignee: Sichuan Prius Biotechnology Co ltd
Priority date: 2023-04-04
Filing date: 2023-04-04
Publication date: 2023-07-25
Anticipated expiration: 2033-04-04

Abstract

The utility model relates to the technical field of medical appliances, and discloses a precise liquid medicine filter for a medical infusion set, which comprises an upper shell and a lower shell, wherein the upper shell and the lower shell are fixedly sleeved with each other, and the surfaces of the upper shell and the lower shell are respectively communicated with a liquid inlet pipe and a liquid outlet pipe; according to the utility model, the defoaming cotton is arranged in the filter, when the liquid medicine enters the filter, the liquid falls on the defoaming cotton, after the defoaming cotton eliminates bubbles in the liquid medicine, the liquid medicine flows down along the fixed block, so that the purpose of eliminating the bubbles can be achieved, the harm to a human body is avoided, the use experience is improved, when the liquid medicine is infused, the valve is opened due to the gravity of the liquid medicine, the infusion is normally conducted, after the infusion is finished, the blood pressure of the human body is greater than the pressure in the infusion set, the liquid medicine drives the valve to move, the liquid outlet pipe is blocked by the valve, the liquid medicine is prevented from flowing back, the backflow of blood is prevented, the thrombus is prevented from blocking the infusion needle, and the safety of the infusion is ensured.

Description

Precise liquid medicine filter for medical infusion apparatus

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a precise liquid medicine filter for a medical infusion set.

Background

Intravenous transfusion is always an effective way for rescuing critical patients clinically and curing various diseases, and can directly inject liquid medicine into blood, so that the medicine effect can be exerted at the highest speed. The liquid medicine and the infusion set can carry insoluble particles, which is a difficult problem for medical staff and patients. These insoluble particles can cause blockage of microcirculation of human body and viscera, and cause venous embolism and venous inflammation, and in order to avoid these problems, a filter is installed in an infusion apparatus to filter the medicine industry.

Through searching Chinese patent, the publication number is: CN204017042U, a precise liquid medicine filter for medical transfusion set with a light-shielding cover, adopts the technical scheme that the light-shielding cover is separated from the liquid medicine filter to prevent the pollution of the liquid medicine caused by the contact of the light-shielding agent and the liquid medicine; the light-shielding cover comprises an upper shell and a lower shell, and the upper shell and the lower shell are welded, bonded or embedded; the operation mode is simple, the buckling is tight, the light shielding effect is good, the disassembly is easy, and the production cost is low.

In summary, the existing pharmaceutical filter does not have the function of eliminating bubbles, in the infusion process, bubbles often exist in the liquid medicine, the bubbles are discharged in the infusion process, the human body is damaged along with the flow speed of the liquid medicine, the backflow prevention function is not provided, after the infusion is completed, the blood pressure of the human body is higher than the external air pressure and is higher than the internal pressure of the infusion set, the backflow is generated, if the infusion needle is blocked by thrombus due to untimely treatment, the medical accident can be caused due to improper treatment, the safety is low, and in order to solve the problems, the precise liquid medicine filter for the medical infusion set is provided.

Disclosure of Invention

The utility model aims to provide a precise liquid medicine filter for a medical infusion set, which has the advantages of eliminating bubbles and having a backflow prevention function, and solves the problems that the existing medical filter does not have the function of eliminating bubbles and does not have the backflow prevention function.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a medical infusion is with accurate liquid medicine filter, includes upper housing and inferior valve, its characterized in that: the upper shell is fixedly sleeved with the lower shell, the surfaces of the upper shell and the lower shell are respectively communicated with a liquid inlet pipe and a liquid outlet pipe, a first fixing frame is bolted between the inner walls of the upper shell, a fixing block is bolted at the top of the first fixing frame, defoaming cotton is adhered to the surface of the fixing block, filtering membranes are respectively bolted to the inner walls of the upper shell and the lower shell, a fixing frame is fixedly sleeved on the inner walls of the liquid outlet pipe, a second fixing frame is bolted between the inner walls of the fixing frame, and a valve is bolted to the inner walls of the fixing frame.

Preferably, the shape of the fixing block is conical.

Preferably, the surface of the upper shell is communicated with an exhaust port.

Preferably, the valve is made of polytetrafluoroethylene.

Preferably, the filtering membrane is made of PVDF material and PES material respectively.

Preferably, the number of the valves is four, and the four valves are symmetrically distributed.

Compared with the prior art, the utility model provides a precise liquid medicine filter for a medical infusion set, which has the following beneficial effects:

1. according to the utility model, the defoaming cotton is arranged in the filter, when the liquid medicine enters the filter, the liquid falls on the defoaming cotton, and after the bubbles in the liquid medicine are eliminated by the defoaming cotton, the liquid medicine flows down along the fixed block, so that the purpose of eliminating the bubbles can be achieved, the harm to a human body is avoided, and the use experience is improved.

2. When the infusion device is used for infusion, the valve is opened due to the gravity of the liquid medicine, so that the infusion is normally carried out, and after the infusion is finished, the blood pressure of a human body is higher than the pressure in the infusion set, so that the liquid medicine drives the valve to move, the liquid outlet pipe is blocked by the valve, the liquid medicine is prevented from flowing back, the backflow of blood is prevented, the thrombus is prevented from blocking the infusion needle, and the safety of the infusion is ensured.

Drawings

FIG. 1 is a cross-sectional view of the structure of the present utility model;

FIG. 2 is a top cross-sectional view of a partial structure of the present utility model;

fig. 3 is a bottom cross-sectional view of a partial structure of the present utility model.

In the figure: 1. an upper case; 2. a lower case; 3. a liquid inlet pipe; 4. a liquid outlet pipe; 5. a first fixing frame; 6. a fixed block; 7. defoaming cotton; 8. a filtering membrane; 9. a fixed frame; 10. the second fixing frame; 11. a valve; 12. and an exhaust port.

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.

Embodiment one:

referring to fig. 1 and 2, the present utility model provides an embodiment: the utility model provides a medical infusion is with accurate liquid medicine filter, includes upper shell 1 and inferior valve 2, fixed cup joint between upper shell 1 and the inferior valve 2, and the surface of upper shell 1 and inferior valve 2 communicates respectively has feed liquor pipe 3 and drain pipe 4, and the bolt has first mount 5 between the inner wall of upper shell 1, and the top bolt of first mount 5 has fixed block 6, and the surface bonding of fixed block 6 has defoaming cotton 7.

Referring to fig. 1, the fixing block 6 is tapered, and by setting the fixing block 6 to be tapered, the liquid medicine is conveniently discharged, and the infusion efficiency is improved.

Referring to fig. 1, the surface of the upper case 1 is communicated with an exhaust port 12, and the exhaust port 12 is provided to facilitate the removal of gas.

Embodiment two:

referring to fig. 1 and 3, the present utility model provides an embodiment: the filter membrane 8 is bolted to the inner wall of the upper shell 1 and the lower shell 2, the fixed frame 9 is fixedly sleeved on the inner wall of the liquid outlet pipe 4, the second fixing frame 10 is bolted between the inner walls of the fixed frame 9, and the valve 11 is bolted on the inner wall of the fixed frame 9.

Referring to fig. 1, the valve 11 is made of polytetrafluoroethylene, and by setting the valve 11 to be made of polytetrafluoroethylene, the valve has good mechanical properties and is durable.

Referring to fig. 1, the filtering membrane 8 is made of PVDF and PES respectively, and the filtering membrane 8 is made of PVDF and PES respectively, so that the filtering effect is good, the price is low, and the filtering membrane is durable.

Referring to fig. 3, the number of valves 11 is four, and the four valves 11 are symmetrically distributed, so that the infusion stability is improved by arranging the number of valves 11 to be four, and the four valves 11 are symmetrically distributed.

The use process is briefly described: the defoaming cotton 7 is arranged in the filter, when the liquid medicine enters the filter, the liquid falls on the defoaming cotton 7, after the bubbles in the liquid medicine are eliminated by the defoaming cotton 7, the liquid medicine flows down along the fixed block 6, so that the purpose of eliminating the bubbles can be achieved, the harm to human bodies is avoided, and the use experience is improved; when in transfusion, the valve 11 is opened due to the gravity of the liquid medicine, and normal transfusion is performed, after the transfusion is completed, the blood pressure of a human body is higher than the pressure in the transfusion device, so that the liquid medicine drives the valve 11 to move, the liquid outlet pipe 4 is blocked by the valve 11, the liquid medicine is prevented from flowing back, the blood is prevented from flowing back, the thrombus is prevented from blocking the transfusion needle, and the transfusion safety is ensured.

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.

Claims

1. The utility model provides a medical infusion is with accurate liquid medicine filter, includes upper housing (1) and inferior valve (2), its characterized in that: fixed cup joint between epitheca (1) and inferior valve (2), the surface of epitheca (1) and inferior valve (2) communicates respectively has feed liquor pipe (3) and drain pipe (4), bolt has first mount (5) between the inner wall of epitheca (1), the top bolt of first mount (5) has fixed block (6), the surface bonding of fixed block (6) has defoaming cotton (7), the equal bolt of inner wall of epitheca (1) and inferior valve (2) has filtration membrane (8), the inner wall of drain pipe (4) is fixed to have cup jointed fixed frame (9), bolt has second mount (10) between the inner wall of fixed frame (9), the inner wall bolt of fixed frame (9) has valve (11).

2. The precision liquid medicine filter for a medical infusion set according to claim 1, wherein: the shape of the fixed block (6) is conical.

3. The precision liquid medicine filter for a medical infusion set according to claim 1, wherein: the surface of the upper shell (1) is communicated with an exhaust port (12).

4. The precision liquid medicine filter for a medical infusion set according to claim 1, wherein: the valve (11) is made of polytetrafluoroethylene.

5. The precision liquid medicine filter for a medical infusion set according to claim 1, wherein: the filtering membrane (8) is made of PVDF material and PES material respectively.

6. The precision liquid medicine filter for a medical infusion set according to claim 1, wherein: the number of the valves (11) is four, and the four valves (11) are symmetrically distributed.