CN109925885B

CN109925885B - Filtering device

Info

Publication number: CN109925885B
Application number: CN201910306112.2A
Authority: CN
Inventors: 毛春元; 毛亚凌
Original assignee: Shanghai Jinta Medical Co ltd
Current assignee: Shanghai Jinta Medical Co ltd
Priority date: 2019-04-16
Filing date: 2019-04-16
Publication date: 2024-03-08
Anticipated expiration: 2039-04-16
Also published as: CN109925885A

Abstract

The invention discloses a filtering device, which comprises: the shell is internally provided with an unfiltered cavity and a filtered cavity, a filtering membrane is arranged between the unfiltered cavity and the filtered cavity, a medicine inlet and a medicine outlet are formed in the shell, the medicine inlet is communicated with the unfiltered cavity, and the medicine outlet is communicated with the filtered cavity; one end of the dosing piece is connected with the shell, and the dosing piece is communicated with the unfiltered cavity; wherein, add medicine piece integrated into one piece in the casing. According to the invention, the medicine adding piece is combined with the filtering device, so that the path of a pipeline through which the medicine liquid passes is effectively shortened, and the particle pollution is reduced.

Description

Filtering device

Technical Field

The present invention relates to a filter device.

Background

In the medical instrument field, current filter and dosing piece are two separately assembled parts, during the use, just will add the dosing piece and insert the dosing mouth that corresponds on the filter through the pipeline, and the liquid medicine is through adding the dosing piece and pipeline back again to the filter, can carry more particles like this, causes the hidden danger to the user.

Disclosure of Invention

The invention aims to overcome the defect that in the prior art, liquid medicine passes through a medicine adding part and a pipeline and then enters a filter, so that more particles can be carried, and hidden danger is caused to a user.

The invention solves the technical problems by the following technical proposal:

a filter device, the filter device comprising:

the medicine filter comprises a shell, wherein an unfiltered cavity and a filtered cavity are arranged in the shell, a filter membrane is arranged between the unfiltered cavity and the filtered cavity, a medicine inlet and a medicine outlet are formed in the shell, the medicine inlet is communicated with the unfiltered cavity, and the medicine outlet is communicated with the filtered cavity;

the dosing piece is connected with the shell at one end, and is communicated with the unfiltered cavity;

wherein, the medicine adding piece is integrally formed in the shell.

In the technical scheme, the path of a pipeline through which the liquid medicine passes is effectively shortened by combining the medicine adding piece with the filtering device, and the particle pollution is reduced.

Preferably, the unfiltered cavity comprises a first accommodating cavity and a second accommodating cavity which are communicated, the medicine inlet and the medicine adding piece are communicated with the first accommodating cavity, and the filtering membrane is arranged between the second accommodating cavity and the filtered cavity.

In the technical scheme, through setting up first holding chamber and second holding chamber, make the liquid medicine pass through first holding chamber earlier and then get into the second holding chamber, buffered the impact force of liquid medicine to filtration membrane.

Preferably, the first accommodating cavity and the second accommodating cavity are communicated through a plurality of through holes, and the axes of the through holes are parallel to the plane where the filtering membrane is located.

In this technical scheme, through the mode that sets up the through-hole intercommunication, and the axis of through-hole all with the parallel setting of the plane at filtration membrane place, further buffered the impact force of liquid medicine to filtration membrane.

Preferably, a plurality of through holes are arranged at equal intervals.

Preferably, the first accommodating cavity is disposed at one side of the filtered cavity, and the second accommodating cavity is disposed above the filtered cavity.

In the technical scheme, the structure of the filtering device is more compact by arranging the relative positions of the first accommodating cavity, the second accommodating cavity and the filtered cavity, so that the whole volume is greatly reduced.

Preferably, the shell comprises an upper cover and a lower shell which are oppositely arranged, and the filtering membrane is clamped between the upper cover and the lower shell.

Preferably, the upper cover is provided with an air outlet hole, the air outlet hole corresponds to the filtering membrane, the air outlet hole is communicated with the second accommodating cavity, the filtering device further comprises a waterproof membrane, the waterproof membrane corresponds to the air outlet hole, and the waterproof membrane is arranged between the second accommodating cavity and the air outlet hole.

In the technical scheme, through setting up the venthole, the bubble that probably produces when making the liquid medicine pass through filtration membrane can escape.

Preferably, the filtering device further comprises a supporting frame, the supporting frame is arranged in the filtered cavity, the supporting frame is connected with the lower shell, and the filtering membrane abuts against one end, far away from the lower shell, of the supporting frame.

In this technical scheme, when the liquid medicine concentrates on filtering membrane top, can produce decurrent effort to filtering membrane, play the effect of resisting this effort to filtering membrane through setting up the support frame, prevent that filtering membrane from producing the deformation to extension filtering membrane's life.

Preferably, a rubber plug is arranged at one end of the dosing piece far away from the shell.

The invention has the positive progress effects that:

according to the invention, the medicine adding piece is combined with the filtering device, so that the path of a pipeline through which the medicine liquid passes is effectively shortened, and the particle pollution is reduced.

Drawings

Fig. 1 is a schematic structural view of a filtering device according to a preferred embodiment of the present invention.

Fig. 2 is a schematic exploded perspective view of a filtering device according to a preferred embodiment of the present invention.

Fig. 3 is a cross-sectional view taken along the direction A-A in fig. 1.

Fig. 4 is a sectional view in the direction B-B of fig. 1.

Fig. 5 is a sectional view in the direction C-C of fig. 1.

Description of the reference numerals

Filter device 1

Housing 10

Unfiltered cavity 11

First accommodation chamber 111

Second accommodation chamber 112

Filtered chamber 12

Filtration membrane 13

Medicine inlet 14

Drug outlet 15

Through hole 16

Upper cover 17

Air outlet hole 171

Waterproof membrane 172

Lower shell 18

Support 19

Applicator member 20

Rubber plug 21

Detailed Description

The invention is further illustrated by means of examples which follow, without thereby restricting the scope of the invention thereto.

As will be appreciated with reference to fig. 1-5, the present embodiment provides a filtering apparatus 1, which includes: a housing 10 and a dosing member 20. The end of the dosing member 20 remote from the housing 10 is provided with a rubber plug 21.

An unfiltered cavity 11 and a filtered cavity 12 are arranged in the shell 10, a filtering membrane 13 is arranged between the unfiltered cavity 11 and the filtered cavity 12, a medicine inlet 14 and a medicine outlet 15 are arranged on the shell 10, the medicine inlet 14 is communicated with the unfiltered cavity 11, and the medicine outlet 15 is communicated with the filtered cavity 12; one end of the dosing member 20 is connected to the housing 10 and the dosing member 20 is in communication with the unfiltered cavity 11; wherein, the medicine adding member 20 is integrally formed on the housing 10. Thus, by combining the dosing member 20 with the filter device 1, the path of the liquid medicine through the pipeline is effectively shortened, and particle contamination is reduced.

The unfiltered cavity 11 comprises a first accommodating cavity 111 and a second accommodating cavity 112 which are communicated, the medicine inlet 14 and the medicine adding piece 20 are both communicated with the first accommodating cavity 111, and the filtering membrane 13 is arranged between the second accommodating cavity 112 and the filtered cavity 12. Thus, by providing the first accommodating chamber 111 and the second accommodating chamber 112, the liquid medicine passes through the first accommodating chamber 111 and then enters the second accommodating chamber 112, and impact force of the liquid medicine on the filtering membrane 13 is buffered.

The first accommodating chamber 111 and the second accommodating chamber 112 are communicated through a plurality of through holes 16, and the axes of the through holes 16 are parallel to the plane where the filtering membrane 13 is located. In this way, through the mode of arranging the through holes 16 for communication, the axes of the through holes 16 are parallel to the plane where the filtering membrane 13 is located, so that the impact force of the liquid medicine on the filtering membrane 13 is further buffered. In the present embodiment, the plurality of through holes 16 are disposed at equal intervals.

The first accommodating chamber 111 is disposed at one side of the filtered chamber 12, and the second accommodating chamber 112 is disposed above the filtered chamber 12. In this way, by arranging the relative positions of the first accommodation chamber 111, the second accommodation chamber 112 and the filtered chamber 12, the structure of the filtering device 1 is more compact, and the overall volume is greatly reduced.

The housing 10 includes an upper cover 17 and a lower case 18 disposed opposite to each other, and the filtering membrane 13 is sandwiched between the upper cover 17 and the lower case 18. The upper cover 17 is provided with an air outlet hole 171, the air outlet hole 171 is arranged corresponding to the filtering membrane 13, the air outlet hole 171 is communicated with the second accommodating cavity 112, the filtering device 1 further comprises a waterproof membrane 172, the waterproof membrane 172 is arranged corresponding to the air outlet hole 171, and the waterproof membrane 172 is arranged between the second accommodating cavity 112 and the air outlet hole 171. By providing the air outlet 171 in this way, air bubbles that may be generated when the chemical passes through the filtration membrane 13 can escape.

In this embodiment, the filtering device 1 further includes a supporting frame 19, the supporting frame 19 is disposed in the filtered cavity 12, the supporting frame 19 is connected with the lower shell 18, and the filtering membrane 13 abuts against an end of the supporting frame 19 away from the lower shell 18. Thus, when the chemical solution is concentrated above the filtering membrane 13, a downward force is applied to the filtering membrane 13, and the supporting frame 19 is provided to resist the force applied to the filtering membrane 13, thereby preventing the filtering membrane 13 from being deformed and prolonging the service life of the filtering membrane 13.

While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that these are by way of example only, and the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the invention, but such changes and modifications fall within the scope of the invention.

Claims

1. A filter device, the filter device comprising:

wherein the dosing piece is integrally formed on the shell;

the unfiltered cavity comprises a first accommodating cavity and a second accommodating cavity which are communicated, the medicine inlet and the medicine adding piece are communicated with the first accommodating cavity, and the filtering membrane is arranged between the second accommodating cavity and the filtered cavity;

the first accommodating cavity and the second accommodating cavity are communicated through a plurality of through holes, and the axes of the through holes are parallel to the plane where the filtering membrane is positioned;

the first accommodating cavity is arranged on one side of the filtered cavity, and the second accommodating cavity is arranged above the filtered cavity.

2. The filter device of claim 1, wherein a plurality of said through holes are equally spaced.

3. The filter device of claim 1, wherein the housing comprises an upper cover and a lower housing disposed opposite each other, the filter membrane being sandwiched between the upper cover and the lower housing.

4. The filter device according to claim 3, wherein the upper cover is provided with an air outlet hole, the air outlet hole is arranged corresponding to the filter membrane, and the air outlet hole is communicated with the second accommodating cavity, and the filter device further comprises a waterproof membrane, the waterproof membrane is arranged corresponding to the air outlet hole, and the waterproof membrane is arranged between the second accommodating cavity and the air outlet hole.

5. The filter device of claim 4, further comprising a support frame disposed within the filtered chamber, the support frame being coupled to the lower housing and the filter membrane being positioned against an end of the support frame remote from the lower housing.

6. The filter device according to any one of claims 1-5, wherein the end of the dosing member remote from the housing is provided with a rubber plug.