CN219333796U

CN219333796U - Precise liquid medicine filtering disc with defoaming device

Info

Publication number: CN219333796U
Application number: CN202320096854.9U
Authority: CN
Inventors: 高晓旭; 王帅帅; 张常营
Original assignee: Qingdao Xisheng Medical Technology Co ltd
Current assignee: Qingdao Xisheng Medical Technology Co ltd
Priority date: 2023-02-01
Filing date: 2023-02-01
Publication date: 2023-07-14
Anticipated expiration: 2033-02-01

Abstract

The utility model discloses a precise liquid medicine filter disc with a defoaming device, and belongs to the technical field of precise liquid medicine filtration. The technical proposal is as follows: the anti-foam filter comprises a filter, wherein an air filtering device is arranged on the filter, a foam removing device is further arranged on the filter, the foam removing device comprises a spherical crown-shaped foam removing upper end cover, a liquid inlet pipe is arranged at the top of the foam removing upper end cover, and the bottom of the foam removing upper end cover is arranged on the filter through a surrounding baffle; a defoaming inner part is arranged in a space formed by the defoaming upper end cover and the enclosing baffle, the defoaming inner part is in the shape of a spherical crown body, and a gap is formed between the upper surface of the defoaming inner part and the defoaming upper end cover; the defoaming internal part is arranged at the liquid inlet of the filter, and a gap between the defoaming internal part and the defoaming upper end cover is communicated with the liquid inlet. The utility model eliminates bubbles at the liquid inlet of the filter, thereby avoiding the problem that the gas input in the transfusion process causes harm to the body and life safety of patients.

Description

Precise liquid medicine filtering disc with defoaming device

Technical Field

The utility model relates to the technical field of precise liquid medicine filtration, in particular to a precise liquid medicine filtration disc with a defoaming device.

Background

Before the precise liquid medicine filter starts to be used, manual liquid storage is needed at the dropping funnel, once liquid storage is forgotten, gas easily flows down along with liquid medicine and then enters the filter to form an air plug to block the filter; in the transfusion process, the liquid drops can generate bubbles when entering the dropping funnel, and when the bubbles gradually increase, the bubbles easily enter a human body along with the liquid medicine to form embolism, so that the life safety of a patient is seriously influenced; if the needle is not started in time after the transfusion is completed, gas can enter the patient along with the transfusion tube, and the life safety of the patient is seriously influenced. The Chinese patent No. 203139278U discloses an automatic exhaust transfusion device, which comprises a bottle inserting needle, a drip chamber, a hose, a liquid medicine filter and a venous transfusion needle which are sequentially connected in a through way, wherein a defoamer is arranged at the outlet of the drip chamber, is cylindrical and is provided with a plurality of openings along the length direction of the side wall to form a gas-liquid separation device; the utility model has the advantages that: the dropping funnel can automatically exhaust, exhaust rapidly, transfusion can be performed 3-5 seconds after bottle insertion, air bubbles are prevented from entering the lower pipeline to be input into a human body, the dropping funnel does not need to be extruded or inverted, labor intensity of workers is relieved, working efficiency is improved, and transfusion is safer and more efficient. Therefore, the method thoroughly eliminates the harm of gas input existing in the infusion process to the body of a patient and the life safety of the patient, which is a serious problem that the precise liquid medicine filter must solve.

Disclosure of Invention

The utility model aims to solve the technical problems that: the defect of the prior art is overcome, the precise liquid medicine filter disc with the defoaming device is provided, and bubbles are eliminated at the liquid inlet of the filter, so that the problem that the gas input in the infusion process causes harm to the body and life safety of a patient is avoided.

The technical scheme of the utility model is as follows:

the precise liquid medicine filtering disc with the defoaming device comprises a filter, wherein an air filtering device is arranged on the filter, the filter is also provided with the defoaming device, the defoaming device comprises a spherical-crown-shaped defoaming upper end cover, the top of the defoaming upper end cover is provided with a liquid inlet pipe, and the bottom of the defoaming upper end cover is arranged on the filter through a surrounding baffle; a defoaming inner part is arranged in a space formed by the defoaming upper end cover and the enclosing baffle, the defoaming inner part is in the shape of a spherical crown body, and a gap is formed between the upper surface of the defoaming inner part and the defoaming upper end cover; the defoaming internal part is arranged at the liquid inlet of the filter, and a gap between the defoaming internal part and the defoaming upper end cover is communicated with the liquid inlet.

Preferably, the bottom of defoaming internal part is provided with a plurality of stand around circumferencial direction interval, and the stand bottom is provided with the ring, and the ring is installed in the inlet department of filter.

Preferably, the gap between the defoaming inner part and the defoaming upper end cover is 0.1-0.2mm.

Preferably, the filter comprises a filter upper end cover and a filter lower end cover, and a filter membrane is arranged between the filter upper end cover and the filter lower end cover; the upper end cover of the filter is provided with a liquid inlet, and the liquid outlet of the lower end cover of the filter is connected with a puncture needle connector.

Preferably, the filtering membrane is made of nylon or polyethersulfone.

Compared with the prior art, the utility model has the following beneficial effects:

the filter disc is provided with the defoaming device on the filter, a defoaming gap is formed by utilizing the gap between the defoaming upper end cover and the defoaming internal part, residual liquid medicine forms a liquid film in the gap for gas blocking, and bubbles are eliminated at the liquid inlet of the filter, so that the problem that the gas input in the infusion process causes harm to the body and life safety of a patient is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a cross-sectional view taken along A-A of fig. 1.

Fig. 3 is a front view of the defoaming device of the present utility model.

Fig. 4 is a C-C cross-sectional view of fig. 3.

Fig. 5 is a schematic structural view of the defoaming inner part of the present utility model.

Fig. 6 is a B-B cross-sectional view of fig. 5.

In the figure, 1, a filter; 101. a filter upper end cap; 102. a filter lower end cap; 103. a filtering membrane; 104. a puncture needle connector; 2. an air filtration device; 3. a defoaming device; 301. defoaming an upper end cover; 302. a liquid inlet pipe; 303. a surrounding baffle; 304. defoaming internals; 305. a column; 306. a circular ring; 5. a slit.

Detailed Description

In order to make the technical solution of the present utility model better understood by those skilled in the art, the technical solution of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

Example 1

As shown in fig. 1 to 6, the embodiment provides a precise liquid medicine filter disc with a defoaming device, which comprises a filter 1, wherein an air filtering device 2 is arranged on the filter 1. The filter 1 comprises a filter upper end cover 101 and a filter lower end cover 102, and a filter membrane 103 is arranged between the filter upper end cover 101 and the filter lower end cover 102; the upper end cover 101 of the filter is provided with a liquid inlet, and the liquid outlet of the lower end cover 102 of the filter is connected with a puncture needle connector 104. The filter 1 and the air filter 2 may be constructed using existing commercially available products, such as a precision medical fluid filter (including a filter and an air filter) manufactured by su-zhu medical instruments, inc.

The filter 1 is also provided with a defoaming device 3, the defoaming device 3 comprises a spherical crown-shaped defoaming upper end cover 301, and the top of the defoaming upper end cover 301 is provided with a liquid inlet pipe 302 which is connected with a transfusion pipe; the bottom of the defoaming upper end cover 301 is fixedly arranged on the filter 1 through a circular enclosing baffle 303; a defoaming inner part 304 is arranged in a space formed by the defoaming upper end cover 301 and the enclosing shield 303, the defoaming inner part 304 is in a spherical crown shape, and a gap 5 exists between the upper surface of the defoaming inner part 304 and the defoaming upper end cover 301; the bottom of the defoaming inner part 304 is provided with a plurality of upright posts 305 at intervals around the circumferential direction, gaps exist among the upright posts 305, and liquid medicine can flow into a liquid inlet on the upper end cover 101 of the filter through the gaps; the bottom of the upright post 305 is provided with a circular ring 306, and the circular ring 306 is fixedly arranged at the liquid inlet of the filter 1 in a welding mode and the like.

Working principle:

the liquid medicine in the infusion tube enters the space formed by the defoaming upper end cover 301 and the enclosing shield 303 through the liquid inlet tube 302, flows down along the gap 5 (gap spacing is 0.1-0.2 mm) between the defoaming upper end cover 301 and the defoaming inner member 304, then flows into the gaps between the upright post 305 and the enclosing shield 303 and between the upright post 305 and the upright post 305, flows into the filter 1 through the liquid inlet, flows into the infusion tube of the puncture needle from the puncture needle connector 104 after being filtered by the filtering membrane 103, and finally is input into a human body. When the transfusion is completed and no medicine drops, a layer of film is formed at the gap 5 between the defoaming upper end cover 301 and the defoaming inner part 304 by residual medicine liquid, and gas is automatically prevented from entering the filter 1; in addition, the filtering membrane 103 in the filter 1 is made of nylon or polyethersulfone material which is not excessively aerated by liquid, so that no gas enters the human body along with the liquid medicine under the double structural design.

The precise liquid medicine filter disc is provided with the defoaming device 3 on the filter 1, a defoaming gap is formed by utilizing the gap 5 between the defoaming upper end cover 301 and the defoaming inner part 304, and residual liquid medicine forms a liquid medicine film in the gap 5 for gas shutoff, so that the problem that the gas input in the transfusion process causes harm to the body and life safety of a patient is avoided.

Although the present utility model has been described in detail by way of preferred embodiments with reference to the accompanying drawings, the present utility model is not limited thereto. Various equivalent modifications and substitutions may be made in the embodiments of the present utility model by those skilled in the art without departing from the spirit and scope of the present utility model, and it is intended that all such modifications and substitutions be within the scope of the present utility model/be within the scope of the present utility model as defined by the appended claims. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. The precise liquid medicine filtering disc with the defoaming device comprises a filter (1), wherein an air filtering device (2) is arranged on the filter (1), and is characterized in that the filter (1) is also provided with a defoaming device (3), the defoaming device (3) comprises a spherical-crown-shaped defoaming upper end cover (301), the top of the defoaming upper end cover (301) is provided with a liquid inlet pipe (302), and the bottom of the defoaming upper end cover (301) is arranged on the filter (1) through a surrounding baffle (303); a defoaming inner piece (304) is arranged in a space formed by the defoaming upper end cover (301) and the enclosing shield (303), the defoaming inner piece (304) is in a spherical crown shape, and a gap (5) is formed between the upper surface of the defoaming inner piece (304) and the defoaming upper end cover (301); the defoaming inner part (304) is arranged at the liquid inlet of the filter (1), and a gap (5) between the defoaming inner part (304) and the defoaming upper end cover (301) is communicated with the liquid inlet.

2. The precise liquid medicine filter disc with the defoaming device according to claim 1, wherein a plurality of stand columns (305) are arranged at intervals around the circumferential direction at the bottom of the defoaming inner piece (304), a circular ring (306) is arranged at the bottom of the stand columns (305), and the circular ring (306) is arranged at the liquid inlet of the filter (1).

3. The precise liquid medicine filter disc with the defoaming device according to claim 1, wherein a gap (5) between the defoaming inner part (304) and the defoaming upper end cap (301) is 0.1-0.2mm.

4. The precise liquid medicine filter disc with the defoaming device according to claim 1, wherein the filter (1) comprises a filter upper end cover (101) and a filter lower end cover (102), and a filtering membrane (103) is arranged between the filter upper end cover (101) and the filter lower end cover (102); the upper end cover (101) of the filter is provided with a liquid inlet, and the liquid outlet of the lower end cover (102) of the filter is connected with a puncture needle connector (104).

5. The precise liquid medicine filter disc with the defoaming device according to claim 4, wherein the filter membrane (103) is made of nylon or polyethersulfone.