CN114307645B

CN114307645B - Liquid recovery device

Info

Publication number: CN114307645B
Application number: CN202111506573.8A
Authority: CN
Inventors: 杨一杰; 邓炳佳; 赖川
Original assignee: Shenzhen Wellsim Biomedical Technologies
Current assignee: Shenzhen Wellsim Biomedical Technologies
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2023-06-20
Anticipated expiration: 2041-12-10
Also published as: CN114307645A

Abstract

The application provides a liquid recovery unit, including mirror symmetry setting and enclose two casings of locating together to form a cavity, every casing includes first board, second board and the third board of relative setting, and connects the fourth board of second board and third board, and the edge of second board, third board and fourth board around first board extends the setting towards same side. The junction of first board, second board and fourth board is equipped with filtration module, is equipped with liquid gathering module between filtration module and the third board, and the contained angle between liquid gathering module and the first board is the acute angle. The application liquid recovery unit is through setting up filtration module and liquid gathering module to set up the arc transition on filtration module and the third board of casing, can prevent that liquid wall built-up and be favorable to liquid to be completely by external probe suction, thereby can retrieve and easy operation to liquid completely.

Description

Liquid recovery device

Technical Field

The application relates to the technical field of instrument consumables, in particular to a liquid recovery device for concentrating liquid.

Background

At present, most of the devices with test liquid recovery adopt a pump back pumping mode to recover product liquid. However, due to structural design, surface adhesion, liquid surface tension and the like, the problems of incomplete recovery, inconvenient operation and the like are easily caused.

Disclosure of Invention

In view of the above, the present application proposes a liquid recovery device with an optimized design, which can completely recover the liquid and is simple to operate.

An embodiment of the present application provides a liquid recovery device, which includes two shells disposed in a mirror symmetry manner and surrounding together, so as to form a cavity. Each shell comprises a first plate, a second plate, a third plate and a fourth plate, wherein the second plate and the third plate are oppositely arranged, the fourth plate is connected with the second plate and the third plate, and the second plate, the third plate and the fourth plate are respectively connected with the edge of the first plate and extend towards the same side.

The junction of first board the second board with the fourth board is equipped with filtration module, filtration module includes the body, the body deviates from the first surface of first board is equipped with filtration membrane, the body has runs through the body and extends to the first hole of first board.

The liquid collecting module is arranged between the filtering module and the third plate, extends from the first plate to the fourth plate, and forms an acute angle with the first plate.

The filtering membrane of the filtering module can filter and concentrate the liquid injected into the liquid recovery device, the filtered and concentrated waste liquid enters the first hole, the concentrated liquid after filtering and concentrating enters a recovery area surrounded by the two liquid aggregation modules, the third plate and the fourth plate, and the concentrated liquid in the recovery area can be recovered through an external probe (such as a syringe, a sampling needle, a puncture needle, a catheter or other devices, etc.). In addition, the liquid gathering module can prevent liquid from hanging on the wall and ensure that the external probe can extend into the recovery area. And, there is partial concentrated solution to remain in the liquid residual area that two filter module's body and second board and fourth board enclose to establish (liquid residual area is less in recovery area space, and external probe can't stretch into), liquid residual area and recovery area intercommunication. When the external probe extends into the recovery area to suck the concentrated solution, the residual concentrated solution in the liquid residual area can be sucked together by means of the viscosity of the concentrated solution and the suction force of the external probe, so that the concentrated solution is ensured to be completely recovered.

In one embodiment, the body includes a second surface connected to the first surface and the first plate, the second surface includes a first arc region, a second arc region connected to the first arc region, a first smooth region connected to the second arc region, and a third arc region connected to the first smooth region, one end of the first arc region away from the second arc region is connected to the second plate, and one end of the third arc region away from the first smooth region is connected to the fourth plate.

Through setting up first arc district, second arc district and third arc district have avoided right angle transition, can reduce the wall built-up of liquid, prevent that liquid recovery is incomplete.

In one embodiment, the first arcuate region is concave toward the direction of the fourth plate, the second arcuate region is convex toward the direction of the third plate, and the third arcuate region is concave toward the direction of the second plate.

In one embodiment, the surface of the third plate opposite to the second plate includes a first smooth section, a first arc section connected to the first smooth section, a second arc section connected to the first arc section, a second smooth section connected to the second arc section, and a third arc section connected to the second smooth section, wherein one end of the third arc section away from the second smooth section is connected to the fourth plate.

Through setting up first arc section, second arc section and third arc section, avoided the right angle transition, can reduce the wall built-up of liquid, prevent that the liquid recovery is incomplete.

In one embodiment, the first arcuate segment is concave toward the direction of the fourth plate, the second arcuate segment is convex toward the direction of the second plate, and the third arcuate segment is concave toward the direction of the third plate.

In one embodiment, the first plate is provided with a second hole penetrating the first plate in a region corresponding to the first hole, and the second hole communicates with the first hole. The first hole is used for storing the concentrated filtered waste liquid, and the second hole is used for discharging the waste liquid.

In one embodiment, a joint is provided at an end of the second hole away from the first hole, and the joint is used for externally connecting a driving device. Through the external drive arrangement of joint, can drive liquid motion and accelerate filtration membrane's concentrated filtration speed, can also take out the waste liquid.

In one embodiment, the liquid collection module is a ramp having an angle with the first plate, the angle being between 10 ° and 30 °. If the included angle is too large, the gradient of the liquid aggregation module is slower, so that the wall hanging of liquid is easy to be caused, and the external probe is not beneficial to extending into a recovery area surrounded by the liquid aggregation module and the fourth plate.

In one embodiment, the filter membrane is secured to the first surface by an adhesive or by a compression seal.

In one embodiment, the liquid recovery device has an opening at an end remote from the fourth plate, the opening being for injection of liquid.

The application liquid recovery unit is through setting up filtration module and liquid gathering module to set up the arc transition on filtration module and the third board of casing, can prevent that liquid wall built-up and be favorable to liquid to be completely by external probe suction, thereby can retrieve and easy operation to liquid completely.

Drawings

Fig. 1 is a schematic structural diagram of a liquid recovery device according to an embodiment of the present disclosure.

Fig. 2 is a schematic structural view of a housing of the liquid recovery apparatus shown in fig. 1.

Fig. 3 is a cross-sectional view of a filtration module provided in an embodiment of the present application.

Fig. 4 is a top view of the liquid recovery apparatus shown in fig. 1.

Description of the main reference signs

Liquid recovery device 100

Housing 10

Opening 101

Joint 102

First plate 11

Second plate 12

Third plate 13

Fourth plate 14

Filter module 20

Body 201

Filtration membrane 202

Adhesive 203

First surface 2011

First hole 2012

Second surface 2013

First arcuate region 2014

Second arc-shaped region 2015

First smoothing region 2016

Third arcuate region 2017

Liquid collection module 30

First smoothing section 131

First arcuate segment 132

Second arc-shaped section 133

Second smooth section 134

Third arc segment 135

Second hole 111

Recovery area 103

Liquid residual region 104

The following detailed description will further illustrate embodiments of the present application in conjunction with the above-described figures.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which embodiments of the present application belong. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the examples of the application.

In addition, descriptions such as those related to "first," "second," and the like in this application are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.

Some embodiments of the present application are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without collision.

Referring to fig. 1, an embodiment of the present application provides a liquid recovery device 100, where the liquid recovery device 100 includes two shells 10 that are disposed in a mirror-symmetrical manner and are enclosed together, and the two shells 10 together enclose a cavity. The liquid recovery device 100 has an opening 101 at one end, and liquid to be concentrated and filtered is injected from the opening 101. Such fluids include, but are not limited to, blood, body fluids, immunological fields, and the like.

It is understood that the two mirror-symmetrical housings 10 have the same structure, and only the structure of one housing 10 will be described in detail below, and the structure of the other housing 10 will not be described again.

Referring to fig. 2, the housing 10 includes a first plate 11, a second plate 12, and a third plate 13 disposed opposite to the second plate 12, and a fourth plate 14 connecting the second plate 12 and the third plate 13, wherein edges of the second plate 12, the third plate 13, and the fourth plate 14 respectively connecting the first plate 11 are disposed to extend toward the same side of the first plate 11 and around the edges of the first plate 11. The liquid recovery device 100 is provided with said opening 101 at an end remote from the fourth plate 14, liquid being injected from the opening 101. The housing 10 has a generally rectangular frame structure, the second plate 12 and the fourth plate 14 are connected by an arc shape, and the third plate 13 and the fourth plate 14 are connected by an arc shape.

The connection between the first plate 11, the second plate 12 and the fourth plate 14 is provided with a filter module 20, and the filter module 20 includes a body 201, where the body 201 is substantially in a hollow ring shape. The first surface 2011 of the body 201 facing away from the first plate 11 is provided with a filter membrane, the body 201 having a first aperture 2012 extending through the body 201 and to the first plate 11.

Referring to fig. 3, the filtering membrane 202 and the first surface 2011 of the body 201 may be fixed by an adhesive 203. In other embodiments, the filtering membrane 202 and the first surface 2011 may be fixed by press-fit sealing. Of course, the filtering membrane 202 may be fixed in other ways, as long as it is fixed on the first surface 2011. It will be appreciated that the selection of a filter membrane 202 having a suitable pore size may be based on the desired size of the concentrate solute particles, and the type of filter membrane 202 is not limited in this application.

With continued reference to fig. 2, a liquid collection module 30 is disposed between the filtration module 20 and the third plate 13, and the liquid collection module 30 may be in contact with the filtration module 20 and the third plate 13. In this embodiment, the liquid collection module 30 is generally a ramp having an angle with respect to the first plate 11. Specifically, the liquid collection module 30 extends from the first plate 11 to the fourth plate 14 in a direction away from the first plate 11, and the liquid collection module 30 connects the first plate 11 with the fourth plate 14.

The filtering membrane of the filtering module 20 may perform filtering concentration on the liquid (the volume may be several tens milliliters to several hundreds milliliters) injected into the liquid recovery device 100, and the filtered concentrated waste liquid (for example, water, etc.) enters the first hole 2012. Referring to fig. 4, the concentrated solution after filtration and concentration enters a recovery area 103 surrounded by two liquid collecting modules 30, a third plate 13 and a fourth plate 14, the concentrated solution in the recovery area 103 can be recovered by an external probe (such as a syringe, a sampling needle, a puncture needle, a catheter or other devices, etc.), and the volume of the recovered concentrated solution can be several tens microliters to several hundreds microliters. In addition, the liquid collection module 30 prevents liquid from hanging up and ensures that an external probe can extend into the recovery zone 103. The two filter modules 20, the second plate 12 and the fourth plate 14 are surrounded by a liquid residue region 104, and a part of the concentrated liquid remains in the liquid residue region 104 (the liquid residue region 104 has a smaller space than the recovery region 103, and the external probe cannot extend into the liquid residue region 104) and the recovery region 103 are communicated. When the external probe extends into the recovery area 103 to suck the concentrated solution, the residual concentrated solution in the liquid residual area 104 can be sucked together by means of the viscosity of the concentrated solution and the suction force of the external probe, so that the complete recovery of the concentrated solution is ensured.

In some embodiments, the angle between the liquid collection module 30 and the first plate 11 may be between 10 ° and 30 °. If the included angle is too large, the gradient of the liquid aggregation module 30 is slow, which is easy to cause the wall hanging of the liquid and is unfavorable for the external probe to extend into the recovery area 103.

As shown in fig. 2, the body 201 includes a second surface 2013 connecting the first surface 2011 and the first plate 11. The second surface 2013 includes a first arcuate region 2014, a second arcuate region 2015 connected to the first arcuate region 2014, a first smooth region 2016 connected to the second arcuate region 2015, and a third arcuate region 2017 connected to the first smooth region 2016, an end of the first arcuate region 2014 remote from the second arcuate region 2015 being connected to the second plate 12, and an end of the third arcuate region 2017 remote from the first smooth region 2016 being connected to the fourth plate 14. The arc-shaped region has a certain radian compared with the smooth region, and the smooth region refers to a shape of the region without undulation and concave-convex.

Further, in some implementations, the first arcuate region 2014 is recessed generally toward the fourth plate 14, the second arcuate region 2015 is raised generally toward the third plate 13, and the third arcuate region 2017 is recessed generally toward the second plate 12.

By providing the first arcuate region 2014, right angle transitions between the second plate 12 and the filtration module 20 are avoided; by providing the second arcuate region 2015, right angle transitions between the filtration module 20 and the liquid collection module 30 are avoided; by providing the third arcuate region 2017, right angle transitions between the filtration module 20 and the fourth plate 14 are avoided. By arranging the arc-shaped area, right-angle transition is avoided, so that the wall hanging of liquid can be reduced, and incomplete liquid recovery is prevented. The radian of the arc-shaped area is not limited, and the liquid wall hanging can be reduced only by avoiding right-angle transition.

As shown in fig. 2, the surface of the third plate 13 disposed opposite to the second plate 12 includes a first smooth section 131, a first arc section 132 connected to the first smooth section 131, a second arc section 133 connected to the first arc section 132, a second smooth section 134 connected to the second arc section 133, and a third arc section 135 connected to the second smooth section 134, and an end of the third arc section 135 remote from the second smooth section 134 is connected to the fourth plate 14. The arc-shaped section has a certain radian compared with the smooth section, and the smooth section refers to a shape of the area without undulation and concave-convex.

Further, in some implementations, the first arcuate segment 132 is recessed generally toward the fourth plate 14, the second arcuate segment 133 is raised generally toward the second plate 12, and the third arcuate segment 135 is recessed generally toward the third plate 13.

By providing the first arc-shaped section 132 and the second arc-shaped section 133, a right angle transition between the third plate 13 and the liquid collecting module 30 is avoided; by providing the third arcuate segment 135, a right angle transition between the third plate 13 and the fourth plate 14 is avoided. By arranging the arc-shaped section, right-angle transition is avoided, so that the wall hanging of liquid can be reduced, and incomplete liquid recovery is prevented. The radian of the arc section is not limited, and the liquid wall hanging can be reduced only by avoiding right-angle transition.

As shown in fig. 2, the region of the first plate 11 corresponding to the first hole 2012 is provided with a second hole 111 penetrating the first plate 11, the second hole 111 communicates with the first hole 2012, and the diameter of the second hole 111 is smaller than the diameter of the first hole 2012. The first port 2012 is for storing concentrated filtered waste liquid and the second port 111 is for discharging the waste liquid.

Referring to fig. 1 and 2, in some embodiments, a joint 102 is disposed at an end of the second hole 111 away from the first hole 2012, and the joint 102 is used for externally connecting a driving device. The driving means may be, but is not limited to, a pump or the like. The joint 102 is externally connected with a driving device, so that liquid can be driven to move, the concentration and filtration speed of the filtering membrane can be increased, and waste liquid can be pumped out.

The application liquid recovery device 100 through setting up filtration module 20 and liquid gathering module 30 to set up the arc transition on filtration module 20 and housing 10's third board 13, can prevent that liquid wall built-up and be favorable to the liquid to be completely by external probe suction, thereby can retrieve and easy operation to liquid completely.

The foregoing description is of some embodiments of the present application, but is not limited to only those embodiments during actual application. Other variations and modifications of the present application, which are apparent to those of ordinary skill in the art, are intended to be within the scope of the present application.

Claims

1. A liquid recovery device comprising two shells arranged in a mirror symmetry and surrounding together to form a cavity, each shell comprising a first plate, a second plate and a third plate arranged opposite to each other, and a fourth plate connecting the second plate and the third plate, wherein the edges of the second plate, the third plate and the fourth plate respectively connected with the first plate are arranged to extend towards the same side;

the connection part of the first plate, the second plate and the fourth plate is provided with a filter module, the filter module comprises a body, a filter membrane is arranged on the first surface of the body, which is away from the first plate, and the body is provided with a first hole penetrating the body and extending to the first plate; the body comprises a second surface for connecting the first surface and the first plate, the second surface comprises a first arc-shaped area, a second arc-shaped area connected with the first arc-shaped area, a first smooth area connected with the second arc-shaped area and a third arc-shaped area connected with the first smooth area, one end of the first arc-shaped area far away from the second arc-shaped area is connected with the second plate, and one end of the third arc-shaped area far away from the first smooth area is connected with the fourth plate;

a liquid collecting module is arranged between the filtering module and the third plate, the liquid collecting module is a ramp with an included angle with the first plate, the liquid collecting module extends from the first plate to the fourth plate, and the included angle between the liquid collecting module and the first plate is an acute angle;

the two liquid gathering modules of the two shells, the third plate and the fourth plate enclose a recovery area, the two filtering modules of the two shells, the second plate and the fourth plate enclose a liquid residual area, and the liquid residual area is communicated with the recovery area.

2. The fluid recovery device of claim 1, wherein the first arcuate region is concave toward the fourth plate, the second arcuate region is convex toward the third plate, and the third arcuate region is concave toward the second plate.

3. The fluid recovery device of claim 1, wherein the surface of the third plate opposite the second plate comprises a first smooth section, a first arcuate section connected to the first smooth section, a second arcuate section connected to the first arcuate section, a second smooth section connected to the second arcuate section, and a third arcuate section connected to the second smooth section, the third arcuate section connected to the fourth plate at an end remote from the second smooth section.

4. A liquid recovery device as recited in claim 3, wherein said first arcuate segment is concave toward said fourth plate, said second arcuate segment is convex toward said second plate, and said third arcuate segment is concave toward said third plate.

5. The fluid recovery device of claim 1, wherein the region of the first plate corresponding to the first aperture is provided with a second aperture therethrough, the second aperture being in communication with the first aperture.

6. The fluid recovery device of claim 5, wherein an end of the second bore remote from the first bore is provided with a connector for externally connecting a drive device.

7. The fluid recovery apparatus of claim 1, wherein the included angle is between 10 ° and 30 °.

8. The liquid recovery device of claim 1, wherein the filter membrane is secured to the first surface by an adhesive or by a press seal.

9. The fluid recovery device of claim 1, wherein an end of the fluid recovery device remote from the fourth plate has an opening for injecting fluid.