CN216294890U

CN216294890U - Novel liquid medicine filter

Info

Publication number: CN216294890U
Application number: CN202120076407.8U
Authority: CN
Inventors: 杨以挺; 林彬; 许益鹏
Original assignee: Zhejiang Xinna Medical Device Technology Co ltd
Current assignee: Zhejiang Xinna Medical Device Technology Co ltd
Priority date: 2021-01-12
Filing date: 2021-01-12
Publication date: 2022-04-15
Anticipated expiration: 2031-01-12

Abstract

The utility model provides a novel liquid medicine filter, and belongs to the technical field of filters. The problem that the stability is poor when the filtering membrane of the existing filter is used is solved. This novel liquid medicine filter is including being discoid casing, and the casing has the inner chamber, is equipped with the filtration membrane that falls into feed liquor chamber and play sap cavity with the inner chamber in the casing, lies in on the casing that sap cavity one side is equipped with the protruding muscle that is the cross form, and the top surface of protruding muscle supports and leans on filtration membrane just the maximum length of protruding muscle is less than the diameter in sap cavity, lies in feed liquor chamber one side on the casing and is equipped with a plurality of bumps, and the top of bump supports and leans on filtration membrane and the position at bump is corresponding with the position at protruding muscle place. This product design sets up bellied crisscross protruding muscle in the middle part position of going out the liquid chamber, and the supporting power that protruding muscle side direction can be given on the side of filtration membrane is supported to protruding muscle prevents the sunken damage of filtration membrane, has improved the stability of filtration membrane when using.

Description

Novel liquid medicine filter

Technical Field

The utility model belongs to the technical field of filters, relates to a filter, and particularly relates to a novel liquid medicine filter.

Background

The infusion is a large dose of injection which is dropped into a human body from a vein, and the direct entry of the injection into the blood circulation of the human body is an important means for preventing and treating diseases. The typical infusion process is that the liquid medicine in the infusion bottle enters the channels of the human body after passing through a Marfan tube, a control clip and a liquid medicine filter. The liquid medicine filter is used for preventing pollutants such as particles in the liquid medicine and air from entering a human body.

In the liquid medicine filter in the prior art, the liquid medicine filter is easy to have the liquid leakage fault caused by the fact that a filtering membrane cannot be installed in place or the filtering membrane is damaged in the using process, and if the liquid medicine filter cannot be found or eliminated in time, germs can invade an infusion system to infect patients. And current filtration membrane often all establishes in the filter through the card, if the position cooperation of joint is not inseparable then can lead to filtration membrane to drop from the joint in the infusion process, causes the potential safety hazard. The filter generally has an inner cavity, the inner cavity is divided into two parts by the filter membrane, the osmotic pressures in the chambers at the left side and the right side of the filter membrane are different, if the osmotic pressure difference is too large, the filter membrane is possibly sunken towards the side with smaller pressure to cause damage, and impurities can not be filtered, so that the problem existing in the prior art is solved.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provide a novel liquid medicine filter. It is the relatively poor technical problem of stability when the filtration membrane of current filter uses that it solves.

The purpose of the utility model can be realized by the following technical scheme:

the utility model provides a novel liquid medicine filter, is including being discoid casing, the casing has the inner chamber, be equipped with the filtration membrane that falls into feed liquor chamber and play sap cavity with the inner chamber in the casing, its characterized in that, it is equipped with the protruding muscle that is the cross form to lie in sap cavity one side on the casing, and the top surface of protruding muscle supports and leans on filtration membrane just the maximum length of protruding muscle is less than the diameter in sap cavity, it is equipped with a plurality of bumps to lie in feed liquor chamber one side on the casing, the top of bump supports and leans on filtration membrane is last and the position at bump is corresponding with the position at protruding muscle place.

Filter membrane divide into the feed liquor chamber with the inner chamber and goes out the liquid chamber, the liquid medicine in the feed liquor chamber can enter into out the liquid intracavity through filtration membrane filtration, so the osmotic pressure in feed liquor chamber will be greater than the osmotic pressure in play liquid chamber, filter membrane can be sunken towards play liquid chamber direction under the pressure effect, so this product design sets up bellied crisscross protruding muscle in the middle part position in play liquid chamber, protruding muscle supports to prevent that filter membrane is sunken to be damaged by the holding power that can give protruding muscle side direction on filter membrane's side, filter membrane's stability when using has been improved.

A plurality of salient points are arranged on one side of the liquid inlet cavity on the shell, the tops of the salient points are abutted against the filtering membrane, and the positions of the salient points correspond to the positions of the convex ribs. The bump is located feed liquor chamber one side and supports and lean on filtration membrane, and the position of bump still corresponds each other with protruding muscle moreover, and filtration membrane is equivalent to being blocked to be established in the middle of bump and protruding muscle like this, and bump and protruding muscle can be effectual produce spacingly to filtration membrane's middle part, prevent in the use or transportation filtration membrane crooked or damaged, the guarantee of very big degree the stability of filtration membrane when using of this filter.

In foretell a novel liquid medicine filter, the casing includes casing and lower casing, the bump is located the casing, protruding muscle is located the casing down, filtration membrane is located between casing and the lower casing and filtration membrane's outer edge inlays and establishes the junction at last casing and lower casing.

The outer edge of filtration membrane inlays the junction of establishing at last casing and lower casing, because the casing is discoid, so go up the casing and the casing down all be circular so go up the casing and can all fix filtration membrane's outer round of following with the junction of casing down for a circular shape, protruding muscle on the casing supports near the center department of locating at filtration membrane under the rethread, the bump of going up casing department also supports and leans on filtration membrane and also forms spacingly with protruding muscle combination to filtration membrane's central point, the location of the outer edge of filtration membrane department and the location of central point position, dual fixed effect, the guarantee of very big degree this filtration membrane stability in the use.

In the above-mentioned novel liquid medicine filter, the outer edge department that is located on one side of being close to filtration membrane on the casing down is equipped with the annular, go up be equipped with on the casing with the annular correspond and stretch into the annular cyclic annular lug, filtration membrane is located the annular and cyclic annular lug roof pressure is on filtration membrane.

The design of annular makes filtration membrane can fix in the annular through the roof pressure of cyclic annular lug, and cyclic annular lug roof pressure is pressed on filtration membrane and is pressed its pressure in the annular bottom, and the leakproofness between last casing and the lower casing has also comparatively effectually been improved to such design.

In the above new liquid medicine filter, the groove bottom of the ring groove is provided with an annular convex part, and when the annular convex part is pressed against the filtering membrane, the convex part is embedded into the filtering membrane.

The design that the convex part is embedded into the filter membrane ensures that the outer edge of the filter membrane is not easy to fall out of the ring groove, and the fixing strength between the filter membrane and the shell is increased.

In the above new liquid medicine filter, the groove bottom of the ring groove has uniformly distributed concave parts.

The effect of the design of depressed part is that the tank bottom of utilizing unevenness increases the frictional force between recess tank bottom and the filtration membrane for the outer edge department of filtration membrane is difficult to drop from the annular in, has improved the stability of filtration membrane when using.

Compared with the prior art, the product has the advantages that:

1. this product design sets up bellied crisscross protruding muscle in the middle part position of going out the liquid chamber, and the supporting power that protruding muscle side direction can be given on the side of filtration membrane is supported to protruding muscle prevents the sunken damage of filtration membrane, has improved the stability of filtration membrane when using.

2. Bump and protruding muscle can be effectual produce spacingly to the middle part of filtration membrane, prevent that filtration membrane is crooked or damaged in the use or transportation, the guarantee of very big degree the stability of filtration membrane of this filter when using.

3. The effect of the design of depressed part is that the tank bottom of utilizing unevenness increases the frictional force between recess tank bottom and the filtration membrane for the outer edge department of filtration membrane is difficult to drop from the annular in, has improved the stability of filtration membrane when using.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a half sectional view of the present invention;

FIG. 3 is an enlarged view of the present invention at A in FIG. 2;

FIG. 4 is a detail view of the lower housing of the present invention;

fig. 5 is a detail view of the upper housing of the present invention.

In the figure, 1, a housing; 11. a liquid outlet cavity; 111. an annular projection; 12. a lower housing; 121. a ring groove; 122. a convex portion; 2. an inner cavity; 21. a liquid inlet cavity; 22. a liquid outlet cavity; 3. a filtration membrane; 4. a rib is protruded; 5. and (4) bumps.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1-5, the novel liquid medicine filter includes a disc-shaped casing 1, the casing 1 has an inner cavity 2, a filtering membrane 3 is disposed in the casing 1 and divides the inner cavity 2 into a liquid inlet cavity 21 and a liquid outlet cavity 22, the casing 1 is composed of an upper casing 11 and a lower casing 12, a bump 5 is disposed on the upper casing 11, a convex rib 4 is disposed on the lower casing 12, the filtering membrane 3 is disposed between the upper casing 11 and the lower casing 12, and an outer edge of the filtering membrane 3 is embedded at a joint between the upper casing 11 and the lower casing 12. Since the housing 1 is disc-shaped, the upper housing 11 and the lower housing 12 are both circular, so that a connection position where the connection part of the upper housing 11 and the lower housing 12 is circular can fix the outer edge of the filter membrane 3 for one circle. The upper shell 11 is provided with a liquid inlet end communicated with the liquid inlet cavity 21 and used for being butted with a pipeline, and the lower shell 12 is provided with a liquid outlet end communicated with the liquid outlet cavity 22 and used for being butted with the pipeline. Go up the gas pocket that still is equipped with on the casing 11 and communicates with feed liquor chamber 21, the gas pocket internal fixation has the water proof membrane, when having the bubble to enter in feed liquor chamber 21, the bubble can see through the water proof membrane and discharge from the gas pocket.

Lie in filtration membrane 3 one side on lower casing 12 and be equipped with protruding muscle 4 that is the cross form, the top surface of protruding muscle 4 supports and leans on filtration membrane 3 and the maximum length of protruding muscle 4 is less than the diameter of play sap cavity 22, goes up and lies in filtration membrane 3 one side on casing 11 and is equipped with a plurality of bumps 5, and the top of bump 5 supports and leans on filtration membrane 3 and the position of bump 5 is corresponding with the position that protruding muscle 4 was located. Filter membrane 3 divide into feed liquor chamber 21 and play liquid chamber 22 with inner chamber 2, liquid medicine in the feed liquor chamber 21 can pass through filter membrane 3 and filter and enter into out liquid chamber 22 in, so the osmotic pressure in feed liquor chamber 21 will be greater than the osmotic pressure of play liquid chamber 22, filter membrane 3 can be sunken towards play liquid chamber 22 direction under the pressure effect, so this product design sets up bellied crisscross protruding muscle 4 in the middle part position of going out liquid chamber 22, protruding muscle 4 supports and can prevent filter membrane 3 sunken damage by the holding power that gives protruding muscle 4 side to on filter membrane 3's the side, filter membrane 3 stability when using has been improved.

A plurality of salient points 5 are arranged on one side of the liquid inlet cavity 21 on the shell 1, the tops of the salient points 5 are abutted against the filtering membrane 3, and the positions of the salient points 5 correspond to the positions of the convex ribs 4. Bump 5 is located feed liquor chamber 21 one side and supports and lean on filtration membrane 3, and the position of bump 5 still corresponds each other with protruding muscle 4, and filtration membrane 3 is equivalent to being blocked to be established in the middle of bump 5 and protruding muscle 4 like this, and bump 5 and protruding muscle 4 can be effectual produce spacingly to filtration membrane 3's middle part, prevent in the use or the transportation filtration membrane 3 skew or damage, the stability of filtration membrane 3 when using of this filter has been ensured to very big degree.

Protruding muscle 4 on casing 12 supports near the center department of filtration membrane 3 down, goes up bump 5 that casing 11 located and also supports on filtration membrane 3 and also forms spacingly with protruding muscle 4 combination to filtration membrane 3's central point, and the location of the outer edge department of filtration membrane 3 and the location of central point put, dual fixed effect, the guarantee of very big degree this filtration membrane 3 stability in the use.

An annular groove 121 is arranged at the outer edge of the lower shell 12 on the side close to the filter membrane 3, an annular projection 111 corresponding to the annular groove 121 and extending into the annular groove 121 is arranged on the upper shell 11, and the filter membrane 3 is positioned in the annular groove 121 and is pressed against and fixed on the filter membrane 3 through the annular projection 111. The design of the ring groove 121 enables the filtering membrane 3 to be fixed in the ring groove 121 by the pressing of the annular bump 111, and the annular bump 111 presses the filtering membrane 3 to the bottom of the ring groove 121, so that the sealing performance between the upper shell 11 and the lower shell 12 can be effectively improved. The groove 121 is provided with an annular protrusion 122 at the bottom thereof, and the protrusion 122 is inserted into the filter membrane 3 when the annular protrusion 111 is pressed against the filter membrane 3. The design of the convex portion 122 embedded in the filtering membrane 3 makes the outer edge of the filtering membrane 3 not easy to fall out of the ring groove 121, and increases the fixing strength between the filtering membrane 3 and the housing 1. The groove bottom of the ring groove 121 has uniformly distributed recesses. The effect of the design of depressed part is that the tank bottom of utilizing unevenness increases the frictional force between recess tank bottom and filtration membrane 3 for the outer edge department of filtration membrane 3 is difficult to drop from annular 121 in, has improved the stability of filtration membrane 3 when using.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. The utility model provides a novel liquid medicine filter, is including being discoid casing (1), casing (1) has inner chamber (2), be equipped with in casing (1) and fall into interior chamber (2) feed liquor chamber (21) and go out filtration membrane (3) of liquid chamber (22), its characterized in that, it is equipped with protruding muscle (4) that are the cross form to lie in liquid chamber (22) one side on casing (1), and the top surface of protruding muscle (4) supports and leans on filtration membrane (3) just the maximum length of protruding muscle (4) is less than the diameter of liquid chamber (22), it is equipped with a plurality of bumps (5) to lie in feed liquor chamber (21) one side on casing (1), the top of bump (5) supports and leans on filtration membrane (3) and the position of bump (5) is corresponding with the position at protruding muscle (4) place.

2. The novel medical liquid filter as claimed in claim 1, wherein the housing (1) comprises an upper housing (11) and a lower housing (12), the protruding points (5) are located on the upper housing (11), the ribs (4) are located on the lower housing (12), the filtering membrane (3) is located between the upper housing (11) and the lower housing (12), and the outer edge of the filtering membrane (3) is embedded at the joint of the upper housing (11) and the lower housing (12).

3. The novel medical liquid filter according to claim 2, wherein the lower shell (12) is provided with a ring groove (121) at the outer edge of the lower shell on the side close to the filtering membrane (3), the upper shell (11) is provided with a ring-shaped protrusion (111) corresponding to the ring groove (121) and extending into the ring groove (121), the filtering membrane (3) is located in the ring groove (121), and the ring-shaped protrusion (111) is pressed against the filtering membrane (3).

4. A new type of medical liquid filter according to claim 3, characterized in that the groove of the ring groove (121) is provided with a ring-shaped protrusion (122), and the protrusion (122) is embedded into the filter membrane (3) when the ring-shaped protrusion (111) is pressed against the filter membrane (3).

5. The new medical liquid filter as claimed in claim 3 or 4, wherein the groove bottom of the ring groove (121) has uniformly distributed depressions.