CN218392804U

CN218392804U - Detachable filter and peritoneal dialysis machine

Info

Publication number: CN218392804U
Application number: CN202221625090.XU
Authority: CN
Inventors: 李周; 徐峰; 潘力
Original assignee: VR Medical Technology Co Ltd
Current assignee: VR Medical Technology Co Ltd
Priority date: 2022-06-27
Filing date: 2022-06-27
Publication date: 2023-01-31
Anticipated expiration: 2032-06-27

Abstract

The utility model relates to the field of filters, in particular to a detachable filter and a peritoneal dialysis machine, which comprises a base, a shell and a filtering membrane, wherein the shell is arranged on the base, the shell and the base are enclosed into a water-blocking cavity, the shell is provided with an air inlet and an air outlet, the air inlet is communicated with the air outlet through the water-blocking cavity, and the filtering membrane is arranged in the water-blocking cavity and covers the air outlet; the base both ends are equipped with buckle spare and fixture block respectively, buckle spare is deformable, buckle spare includes linking arm, bullet arm and buckle, base, linking arm and bullet arm connect gradually, the buckle is located the lateral wall of bullet arm and is close to in the free end of bullet arm. Adopt the utility model discloses, simple structure, change convenience, filter effect are good.

Description

Detachable filter and peritoneal dialysis machine

Technical Field

The utility model relates to a filter field, in particular to can dismantle filter and peritoneal dialysis machine.

Background

The peritoneal dialysis machine accomplishes the interaction of the dialysate by giving positive and negative pressure through an air pump. In order to prevent the machine from being out of order due to the liquid entering the air path, a water-blocking filter is usually added, so that the air path only passes air but not liquid, and the safe operation of the machine is ensured. After the filter is used for a long time, the conditions of damage, blockage and the like can occur, and the filtering effect and the air flow of an air path are influenced. However, the filter of the existing peritoneal dialysis machine is arranged in the machine and can be replaced only by disassembling the machine, which not only brings inconvenience, but also brings other problems of disassembling and reassembling.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a detachable filter is provided, simple structure, change convenience, filter effect are good.

The technical problem to be solved by the present invention is also to provide a peritoneal dialysis machine with a detachable filter.

In order to solve the technical problem, the utility model provides a detachable filter, which comprises a base, a shell and a filtering membrane, wherein the shell is arranged on the base, the shell and the base are enclosed into a water blocking cavity, the shell is provided with an air inlet and an air outlet, the air inlet is communicated with the air outlet through the water blocking cavity, and the filtering membrane is arranged in the water blocking cavity and covers the air outlet;

the base both ends are equipped with buckle spare and fixture block respectively, buckle spare is deformable, buckle spare includes linking arm, plays arm and buckle, base, linking arm and play arm connect gradually, the buckle is located the lateral wall that plays the arm and is close to in the free end that plays the arm.

As an improvement of the scheme, a water blocking seat arranged in the water blocking cavity is arranged on the base, and the water blocking seat is provided with a water blocking groove respectively communicated with the air inlet and the air outlet; the filtering membrane is arranged on the water blocking seat and covers the opening of the water blocking groove, and the water blocking groove is communicated with the air outlet through the opening.

As an improvement of the scheme, a partition plate is arranged in the shell, the partition plate divides the water blocking cavity into a first water blocking cavity and a second water blocking cavity, the partition plate is provided with a water passing notch, the first water blocking cavity and the second water blocking cavity are communicated through the water passing notch, and the air inlet and the air outlet are respectively communicated with the first water blocking cavity and the second water blocking cavity;

the water blocking seat is embedded in the second water blocking cavity, a through hole is formed in the side wall of the water blocking seat, and the water passing notch is communicated with the water blocking groove through the through hole.

As an improvement of the scheme, the bottom of the second water blocking cavity is provided with a supporting rib for supporting the filtering membrane.

As an improvement of the scheme, a sealing ring is arranged at the bottom of the second water blocking cavity and is abutted to the filtering membrane.

As an improvement of the scheme, the filter membrane is a PALL filter membrane.

As an improvement of the scheme, the connecting arm is formed by extending upwards from one end of the base, and the elastic arm is formed by extending downwards and outwards in an inclined mode from the end part of the connecting arm.

As an improvement of the scheme, the base, the clamping piece and the clamping block are integrally formed.

As an improvement of the scheme, the base is provided with a limiting block for limiting the installation position of the shell.

Correspondingly, the utility model also provides a peritoneal dialysis mechanism, which comprises a casing and the detachable filter, wherein the casing is provided with a groove, the inner side wall of the groove is provided with a first lug and a second lug, the buckle is clamped on the first lug, and the clamping block is clamped on the second lug; the recess diapire is equipped with the connecting hole, air inlet and gas outlet communicate with the connecting hole respectively.

Implement the utility model discloses, following beneficial effect has:

the utility model discloses can dismantle the filter has adopted independent modularization, installs the filter in the bottom of casing through the cooperation of buckle spare and fixture block, and is firm reliable, simple structure. Wherein, as long as through the installation and the dismantlement of buckle spare deformation alright realization filter, need not the instrument, easy operation is convenient, and the dismouting of filter can not influence peritoneal dialysis machine's normal use simultaneously yet. In addition, the air inlet and the air outlet are respectively communicated with the air path in the machine, so that air in the machine flows through the inside of the filter, the air only passes through the air but not the liquid under the filtration of the filtering membrane, and the air entering the air outlet is ensured not to be provided with the liquid, thereby ensuring the normal operation of the machine. Therefore, the utility model discloses simple structure, change convenience, filter effect are good.

Drawings

FIG. 1 is a schematic view of the detachable filter of the present invention;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a cross-sectional view of FIG. 1;

FIG. 4 is a schematic structural view of the base of FIG. 2;

FIG. 5 is a schematic structural view of the housing of FIG. 2;

fig. 6 is a sectional view of the peritoneal dialysis machine of the present invention.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings. Only this statement, the utility model discloses the upper and lower, left and right, preceding, back, inside and outside equidirectional wording that appears or will appear in the text only uses the utility model discloses an attached drawing is the benchmark, and it is not right the utility model discloses a concrete restriction.

Referring to fig. 1-6, the utility model discloses a can dismantle filter, including base 1, casing 2 and filtration membrane 3, casing 2 installs on base 1, casing 2 and base 1 enclose into the chamber that blocks water, casing 2 is equipped with air inlet 21 and gas outlet 22, air inlet 21 is through blocking water chamber and gas outlet 22 intercommunication, filtration membrane 3 installs in the intracavity that blocks water and covers on gas outlet 22.

The base 1 both ends are equipped with buckle 11 and fixture block 12 respectively, buckle 11 is deformable, buckle 11 includes linking arm 111, plays arm 112 and buckle 113, base 1, linking arm 111 and play arm 112 connect gradually, buckle 113 is located the lateral wall of playing arm 112 and is close to in the free end of playing arm 112. The connecting arm 111 extends upward from one end of the base 1, and the elastic arm 112 extends downward and obliquely outward from the end of the connecting arm 111.

The utility model discloses can dismantle the filter has adopted independent modularization, installs the filter in the bottom of casing through the cooperation of buckle spare and fixture block, and is firm reliable, simple structure. Wherein, as long as can deform alright realize the installation and the dismantlement of filter through buckle spare, need not the instrument, easy operation is convenient, and the dismouting of filter can not influence peritoneal dialysis machine's normal use yet simultaneously. In addition, the air inlet and the air outlet are respectively communicated with the air passage in the machine, so that air in the machine flows through the interior of the filter, the air only passes through the air but not passes through the liquid under the filtration of the filtering membrane, and the air entering the air outlet is ensured not to have the liquid, thereby ensuring the normal operation of the machine. Therefore, the utility model discloses simple structure, change convenience, filter effect are good.

It should be noted that the air inlet is communicated with the consumable box and the pipeline in the peritoneal dialysis machine, and the peritoneal dialysis fluid exchange is controlled by the positive pressure and the negative pressure of the pneumatic pump. The air outlet is communicated with a pneumatic pump, an electromagnetic valve, a pressure sensor and the like in the peritoneal dialysis machine. Under the effect of pneumatic pump, the air current flows from the gas outlet after through the filter is inside from the air inlet, forms the gas circuit, in order to prevent that the liquid medicine from being inhaled in the gas circuit by the negative pressure or the drop of water that condenses on the trachea gets into electronic function component and leads to its damage, need set up the filter on the gas circuit, filters the liquid in the gas circuit, nevertheless does not influence gaseous passing through. In particular, the filter membrane 3 is a PALL filter membrane, which allows only gas to pass but not liquid.

As shown in fig. 2-6, a water blocking seat 13 disposed in the water blocking cavity is disposed on the base 1, and the water blocking seat 13 is provided with a water blocking groove 131 respectively communicated with the air inlet 21 and the air outlet 22; the filtering membrane 3 is mounted on the water blocking base 13 and covers the opening 132 of the water blocking tank 131, and the water blocking tank 131 is communicated with the air outlet 22 through the opening 132. The filtering membrane is welded on the water blocking seat and completely covers the opening. The air flows into the water blocking cavity through the air inlet and then flows into the water blocking groove. The gas flowing into the water blocking tank flows into the gas outlet after being filtered by the filter membrane, so that the liquid is filtered.

Specifically, as shown in fig. 3 and 5-6, a partition plate 25 is arranged in the housing 2, the partition plate 25 divides the water blocking cavity into a first water blocking cavity 23 and a second water blocking cavity 24, the partition plate 25 is provided with a water passing notch 26, the first water blocking cavity 23 and the second water blocking cavity 24 are communicated through the water passing notch 26, and the air inlet 21 and the air outlet 22 are respectively communicated with the first water blocking cavity 23 and the second water blocking cavity 24; the water blocking seat 13 is embedded in the second water blocking cavity 24, a through hole 133 is formed in the side wall of the water blocking seat 13, and the water passing notch 26 is communicated with the water blocking groove 131 through the through hole 133. The shape and size of the second water blocking cavity 24 are matched with the water blocking seat 13. The air current in the gas circuit flows through air inlet, first chamber, water breach, through-hole, water blocking groove, filtration membrane and gas outlet in proper order, and accessible filtration membrane filters the liquid in the gas in water blocking groove to guarantee the electrical equipment normal operating with the gas outlet intercommunication.

Preferably, as shown in fig. 3 and 5, the bottom of the second water-blocking chamber 24 is provided with a supporting rib 27 for supporting the filter membrane 3. Specifically, as shown in fig. 3, the support ribs 27 are arranged below the filtering membrane 3, and since the gas flows from the water blocking tank side to the air outlet side and acts on the filtering membrane, the support ribs can support the filtering membrane, so as to enhance the strength of the filtering membrane and prolong the service life of the filtering membrane.

Preferably, as shown in fig. 2-3 and 6, the bottom of the second water-blocking chamber 24 is provided with a sealing ring 4, and the sealing ring 4 abuts against the filter membrane 3. And a sealing groove is formed at the bottom of the second water blocking cavity 24, and a sealing ring 4 is installed on the sealing groove. The sealing ring is arranged to prevent liquid from flowing into the air outlet from the gap between the partition plate and the water blocking seat and cannot achieve the filtering effect.

Preferably, the base 1, the latch 11 and the latch 12 are integrally formed.

The fastener is made of plastic, preferably, but not limited to, ABS.

Preferably, as shown in fig. 1 and 4, the base 1 is provided with a stopper 14 for limiting the installation position of the housing 2. The number of the limiting blocks 14 is four, the shell is limited on the corresponding position of the base, and then the shell is welded, so that the shell is fixed on the base, and the shell is convenient to install and easy to operate.

Correspondingly, referring to fig. 6, the utility model also discloses a peritoneal dialysis mechanism, which comprises a casing 5 and the above-mentioned detachable filter, wherein the casing 5 is provided with a groove 51, the inner side wall of the groove 51 is provided with a first bump 52 and a second bump 53, the buckle 113 is clamped on the first bump 52, and the clamping block 12 is clamped on the second bump 53; the bottom wall of the groove 51 is provided with a connecting hole 54, and the air inlet 21 and the air outlet 22 are respectively communicated with the connecting hole 54. The air inlet and the air outlet are communicated with an air pipe inside the machine through connecting holes to form a complete air path. The specific structure of the detachable filter is as described above, and is not described herein again.

Preferably, the bottom of the groove 51 is also provided with a vent hole 55 to facilitate the installation and removal of the filter.

During installation, a user firstly clamps the clamping block 12 on the second bump 53 and pushes the whole body of the secondary filter into the groove 51, so that the clamping buckle 113 of the clamping buckle 11 is clamped on the first bump 52, the installation is completed, and the installation is stable and reliable. When the filter is disassembled, the elastic arm 112 is pulled, the elastic arm 112 moves towards the connecting arm 111, the buckle 113 is separated from the first bump 52, and the filter is integrally pulled out, so that the disassembly is completed. The installation is dismantled simple and conveniently, need not the instrument, can realize regularly changing the filter, guarantees the filter effect.

To sum up, the utility model provides a can dismantle filter and be equipped with this peritoneal dialysis machine that can dismantle filter, simple structure, change convenience, filter effect are good.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.

Claims

1. A detachable filter is characterized by comprising a base, a shell and a filtering membrane, wherein the shell is arranged on the base, the shell and the base are enclosed to form a water blocking cavity, the shell is provided with an air inlet and an air outlet, the air inlet is communicated with the air outlet through the water blocking cavity, and the filtering membrane is arranged in the water blocking cavity and covers the air outlet;

2. The removable filter of claim 1, wherein the base is provided with a water blocking seat disposed in the water blocking chamber, the water blocking seat being provided with a water blocking groove respectively communicating with the air inlet and the air outlet; the filtering membrane is installed on the water blocking seat and covers the opening of the water blocking tank, and the water blocking tank is communicated with the air outlet through the opening.

3. The removable filter of claim 2, wherein a partition is provided in the housing, the partition divides the water-blocking chamber into a first water-blocking chamber and a second water-blocking chamber, the partition is provided with a water passage notch, the first water-blocking chamber and the second water-blocking chamber are communicated through the water passage notch, and the air inlet and the air outlet are respectively communicated with the first water-blocking chamber and the second water-blocking chamber;

4. A removable filter according to claim 3, wherein the bottom of the second water-blocking chamber is provided with support ribs for supporting the filter membrane.

5. The removable filter according to claim 3, wherein a sealing ring is arranged at the bottom of the second water-blocking chamber, and the sealing ring is abutted with the filtering membrane.

6. The removable filter of claim 1, wherein the filter membrane is a PALL filter membrane.

7. The removable filter of claim 1 wherein the connecting arm is formed to extend upwardly from one end of the base and the resilient arm is formed to extend downwardly and obliquely outwardly from the end of the connecting arm.

8. The removable filter of claim 1, wherein the base, the latch, and the catch are integrally formed.

9. The removable filter of claim 1, wherein the base has a stop for limiting the mounting position of the housing.

10. A peritoneal dialysis machine, comprising a casing and the detachable filter of any one of claims 1-9, wherein the casing is provided with a groove, the inner side wall of the groove is provided with a first projection and a second projection, the fastener is clamped on the first projection, and the fixture block is clamped on the second projection; the recess diapire is equipped with the connecting hole, air inlet and gas outlet communicate with the connecting hole respectively.