CN110882007A

CN110882007A - Liquid collecting device

Info

Publication number: CN110882007A
Application number: CN201811047514.7A
Authority: CN
Inventors: 不公告发明人
Original assignee: Maybe Polymer Material (ningbo) Co Ltd
Current assignee: Maybe Polymer Material (ningbo) Co Ltd
Priority date: 2018-09-09
Filing date: 2018-09-09
Publication date: 2020-03-17

Abstract

The invention relates to a liquid collecting device, comprising a handle, a connecting rod and an absorber provided with an insertion hole, wherein the connecting rod is provided with a first part inserted into the insertion hole and a second part axially movably connected with the handle, and when the absorber is compressed, the connecting rod can move towards the handle. The liquid collecting device utilizes the connecting rod to connect the handle with the absorber, is safe and reliable, has a simple structure, is convenient to use, prevents the absorber from falling, and simultaneously avoids the harm to the human body caused by the exposed connecting part after the absorber falls.

Description

Liquid collecting device

Technical Field

The invention relates to the field of medical inspection and drug detection, in particular to a liquid collection device.

Background

In the fields of medical testing and drug testing, testing of blood, urine, and saliva is common. The collection of a sample of the liquid to be analyzed is a part of the testing process. One commonly used method of acquiring fluid is to place a fluid absorbent into the site to be acquired, remove the fluid absorbent after a certain period of time, and then squeeze the fluid out in a special device for subsequent testing. For ease of handling, the prior art method has used an adhesive to secure the liquid absorbent to a sheet at the front end of a handle. The method has low efficiency and high cost.

A liquid collection system among the prior art, the device include the funnel, the funnel below is connected with the detachable outer tube, the outer tube endotheca is equipped with the inner tube that bottom up, opening set up down, has deposited in the inner tube and has preserved liquid, the space between outer tube and the inner tube is outer cavity, outer cavity and funnel intercommunication, the inner tube links to each other with the funnel, and the outer tube bottom is provided with and is used for the step with inner tube mouth of pipe confined. When the outer tube and the funnel are screwed tightly, the inner tube and the outer chamber are sealed and isolated, so that the preservation solution cannot leak out before the device is not used; when the outer tube revolved off the funnel, the inner tube dredged with outer cavity, ensured that the liquid of preserving in the inner tube and outer cavity mixes, made liquid preserve for a long time, and then guaranteed the quality of sample. The device makes the preservative fluid flow out from the bottom of the inner tube and mix with the liquid, and avoids the pollution generated in the process of adding from the outside in the prior art. However, the liquid collecting device has a complicated structure, which is not favorable for manufacturing production.

Another saliva collection system among prior art, including stock solution pipe and lid, stock solution pipe and lid can form inside stock solution space after the dismantlement is connected, the inside barrier film that still is equipped with of stock solution space, the barrier film will the stock solution space is divided into two parts independent each other, the inside piercing device that is equipped with of lid, piercing device is used for punctureing the barrier film after stock solution pipe and lid are dismantled and connect. The liquid storage tube is made of transparent materials or non-transparent materials. The liquid collecting device has more parts and is inconvenient to use.

Disclosure of Invention

In order to solve the above technical problems in the prior art, the present invention discloses a liquid collecting device, including a handle, a connecting rod and an absorber provided with an insertion hole, wherein the connecting rod has a first part inserted into the insertion hole and a second part axially movably connected with the handle, and when the absorber is compressed, the connecting rod can move toward the handle.

Further, an inner cavity extending along the axial direction of the connecting rod is arranged in the handle, and the second part of the connecting rod is inserted into the inner cavity.

Furthermore, a baffle is arranged at the end part of the handle close to the absorber, and an inner hole capable of penetrating through the connecting rod is arranged at the position of the baffle corresponding to the jack.

Further, the absorber is a porous material.

Further, the porous material is a bonded fiber or a sponge.

Further, the connecting rod is made of a liquid guide material.

Further, a plurality of protrusions are provided on the outer circumferential surface of the first portion and/or the second portion of the connecting rod.

Furthermore, the inner wall of the inner cavity corresponding to the second part of the connecting rod is provided with corrugated or saw-tooth-shaped bulges.

Further, one end of the connecting rod is provided with a fixing plate.

Further, a part of the handle close to the absorber is provided with a partially closed cavity extending in the axial direction of the connecting rod, and the second part is inserted into the cavity.

As above, the liquid collecting device provided by the invention can be used for quickly extracting the liquid to be detected, and can be used for quickly extruding the liquid to be detected, so that the liquid collecting device is safe, reliable and convenient to use.

In order to make the aforementioned and other objects of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

The invention will now be described with reference to the accompanying drawings.

Fig. 1 is a schematic structural view of a liquid collection device according to a first embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic structural view of a liquid collection device according to a second embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view taken along line B-B of FIG. 3;

FIG. 5 is a schematic cross-sectional view taken along the line C-C in FIG. 3;

FIG. 6 is a schematic structural view of a liquid collecting apparatus according to a third embodiment of the present invention;

FIG. 7 is a schematic cross-sectional view taken along line D-D of FIG. 6;

FIG. 8 is a schematic structural view of a liquid collecting apparatus according to a fourth embodiment of the present invention;

fig. 9 is a schematic cross-sectional view in the direction E-E of fig. 8.

Detailed Description

The following description is given by way of specific embodiments, and the advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein.

In the present invention, the upper, lower, left and right in fig. 1 are regarded as the upper, lower, left and right of the liquid collecting device in this specification.

The invention provides a liquid collecting device, which is used in the field of medical inspection and drug detection and can be used for analyzing body fluid (such as saliva, urine and the like) of a human body or other liquid to be detected after being collected.

As shown in fig. 1 to 9, the present invention provides a liquid collecting device comprising a handle 1, a connecting rod 3 and an absorbent body 2 provided with an insertion hole 21, wherein the connecting rod 3 has a first portion inserted into the insertion hole 21 and a second portion axially movably connected to the handle 1, and the connecting rod 3 is movable toward the handle 1 when the absorbent body 2 is compressed.

In the invention, the handle 1 is convenient for a liquid collector to hold by hand. The absorption body 2 is used for absorbing liquid to be detected, the insertion hole 21 is arranged on the absorption body 2, the connecting rod 3 is provided with a first part inserted into the insertion hole 21, and the connecting rod 3 is used for fixedly connecting the handle 1 and the absorption body 2 relatively under the condition that no acting force exists in the axial direction of the liquid acquisition device.

The portion of the connecting rod 3 connected to the handle 1 is referred to as the second portion in the present invention, and the second portion of the connecting rod 3 is axially movably connected to the handle 1.

The liquid collecting device has a simple structure, is convenient to use, is safe and reliable by connecting the handle 1 with the absorber 2 through the connecting rod 3, and can prevent the absorber 2 from falling off and avoid the damage to human bodies caused by exposed connecting parts after the absorber 2 falls off.

The second part of the connecting rod 3 is in a fixed connection with the handle 1 during the liquid collection process. When the absorbent body 2 is compressed, the second part of the connecting rod 3 is displaced in the axial direction of the handle 1, i.e. towards the handle 1, under the action of the axial direction force, so that the absorbent body 2 is not hindered by the connecting rod 3 and is completely compressed, thereby ensuring that the collected liquid is released as far as possible.

First embodiment

Fig. 1 is a schematic structural view of a liquid collection device according to a first embodiment of the present invention; fig. 2 is a schematic cross-sectional view taken along line a-a in fig. 1.

As shown in fig. 1 and 2, a liquid collecting device according to a first embodiment of the present invention includes a handle 1, a connecting rod 3, and an absorbent body 2 provided with an insertion hole 21, the connecting rod 3 having a first portion inserted into the insertion hole 21 and a second portion axially movably connected to the handle 1, the connecting rod 3 being movable toward the handle 1 when the absorbent body 2 is compressed.

The portion of the handle 1 adjacent to the absorbent body 2 is provided with an inner cavity 11 extending in the axial direction of the connecting rod 3, and a second portion of the connecting rod 3 is inserted into the inner cavity 11.

As shown in fig. 1, the connecting rod 3 is a rod-shaped structure, the handle 1 is a column-shaped body, a portion of the handle 1 close to the absorbent body 2 is provided with an inner cavity 11 extending in the axial direction of the connecting rod 3, a second portion of the connecting rod 3 is axially movably inserted into the inner cavity 11, and a first portion of the connecting rod 3 is inserted into an insertion hole 21 opened in the middle of the absorbent body 2, so that the absorbent body 2 is fixedly connected with the handle 1 through the connecting rod 3. When the bottom of the handle 1 abuts against the absorbent body 2 and presses the absorbent body 2, the connecting rod 3 moves axially in the cavity 11 relative to the handle 1. That is, when the absorbent body 2 is axially compressed by the application of an axial force, the connecting rods 3 can be pressed axially into the cavities 11, thereby avoiding an obstruction to the compression of the absorbent body 2.

In the present embodiment, the insertion hole 21 in the middle of the absorber 2 extends toward the bottom to a half of the axial direction of the absorber 2. The depth of the insertion hole 21 is generally determined according to the frictional force required to fixedly connect the connecting rod 3 and the absorber 2. The greater the friction required, the deeper the depth of the insertion hole 21 can be set to, up to penetrating the bottom of the absorbent body 2. However, the shallower the depth of the insertion hole 21, the greater the absorption capacity of the absorbent body 2 can be. Therefore, the actual depth of the insertion hole 21 can be determined reasonably according to the actually required frictional force. The cross-sectional shape of the bottom of the handle 1 is similar to that of the absorbent body 2, so that the absorbent body 2 can be conveniently squeezed.

When the diameter of the absorber 2 is larger than that of the handle 1, a baffle 12 may be provided at the end of the handle 1 near the absorber 2, and an inner hole 13 through which the connecting rod 3 can pass is provided at a position of the baffle 12 corresponding to the insertion hole 21. The baffle 12 may be integrally formed with the handle 1, or may be formed separately and then the baffle 12 and the handle 1 are fixedly assembled together.

By the design, the operation of collection personnel can be facilitated, the liquid absorbed in the absorber 2 can be more thoroughly extruded out, and the inner hole 13 of the baffle 12 can have the same diameter and correspond to the inner cavity 11 of the handle 1 in position.

In this embodiment, the second portion of the connecting rod 3 and the handle 1 can be fixedly connected by friction between the outer circumference of the second portion of the connecting rod 3 and the inner wall of the inner cavity 11 of the handle 1. Since no substantial axial force is normally applied during liquid collection. Therefore, a secure connection of the connecting rod 3 to the handle 1 is ensured only by the friction between the outer circumference of the second part of the connecting rod 3 and the inner wall of the cavity 11. When the liquid of the absorption body 2 is released, the connecting rod 3 can be pressed axially into the inner cavity 11 of the handle 1, avoiding an obstruction of the axial compression of the absorption body 2, simply by applying an axial force in the axial direction of the connecting rod 3, which overcomes this friction.

In addition, the diameter of the inner hole 13 in the baffle plate 12 can be set to be smaller than the size of the inner cavity 11 of the handle 1, and the second part of the connecting rod 3 can be connected with the baffle plate of the handle 1 only by utilizing the inner hole 13 of the baffle plate 12 to be fixedly connected with the connecting rod 3. The inner hole 13 of the baffle plate 12 can be fixedly connected with the connecting rod 3 by utilizing the friction force between the inner wall of the inner hole 13 and the outer peripheral surface of the connecting rod 3. When the liquid in the absorbent body 2 is released, the connecting rod 3 can be axially pressed into the inner cavity 11 of the handle 1 only by applying an axial force in the axial direction of the connecting rod 3 that overcomes the friction between the inner wall of the inner bore 13 and the outer circumferential surface of the connecting rod 3, thereby avoiding the obstruction of the axial compression of the absorbent body 2. In this way, the machining requirements of the inner cavity 11 of the handle 1 can be reduced.

The first part of the connecting rod 3 can be fixedly connected with the insertion hole 21 of the absorber 2 in an interference fit mode, and the absorber 2 is made of an elastic material capable of being extruded and deformed, so that the absorber 2 can tightly cover the connecting rod 3 and is prevented from falling off.

In the present invention, the absorbent body 2 is a porous material such as bonded fibers or sponge. The material density of the absorption body 2 is0.04-0.12g/cm³Has certain elasticity and is convenient to extrude.

The connecting rod 3 may be a liquid-conductive material or a non-liquid-conductive material, and is preferably a liquid-conductive material. When the tie bar 3 is a liquid-conductive material, the tie bar may be made of polyethylene terephthalate fibers. In the liquid collection, the connecting rod 3 can also absorb liquid, so that the liquid collection amount of the liquid collection device is increased.

In the liquid collecting process, after the absorbent body 2 absorbs a sufficient amount of liquid, the absorbent body 3 of the liquid collecting device is inserted into a liquid collecting container (not shown), the handle 1 is pressed downward to squeeze the liquid in the absorbent body 2 into the liquid collecting container, and the connecting rod in the absorbent body 2 moves upward into the inner cavity of the handle while the absorbent body 2 is compressed.

With the liquid collecting apparatus of the present embodiment, the connecting rod 3 securely fixedly connects the handle 1 and the absorbent body 2 in a simple manner. Upon release of the liquid, the connecting rods 3 can be pressed axially into the inner chamber 11, so that an obstruction of the compression of the absorption body 2 is avoided. Through the connection mode of frictional force, can prevent to bring the pollution because of sticky connection mode. The liquid collecting device adopting the embodiment has the advantages of simple structure, easiness in production, good safety and reliability and convenience in use.

Second embodiment

FIG. 3 is a schematic structural view of a liquid collection device according to a second embodiment of the present invention; FIG. 4 is a schematic cross-sectional view taken along line B-B of FIG. 3; fig. 5 is a schematic cross-sectional view in the direction C-C in fig. 3. The structure of this embodiment is similar to that of the first embodiment, and the same parts as those of the first embodiment will not be described again.

As shown in fig. 3, 4 and 5, a liquid collecting device according to a second embodiment of the present invention includes a handle 1, a connecting rod 3, and an absorbent body 2 provided with an insertion hole 21, the connecting rod 3 having a first portion inserted into the insertion hole 21 and a second portion axially movably connected to the handle 1, the connecting rod 3 being movable toward the handle 1 when the absorbent body 2 is compressed.

The handle 1 and the baffle 12 are integrally formed, the absorbent body 2 is made of adhesive fibers, and the insertion holes 21 of the absorbent body 2 extend to the bottom of the absorbent body 2. The connecting rod 3 is made of polypropylene plastic and is a non-liquid-conducting material.

The second portion of the connecting rod 3 is provided with a plurality of protrusions 31, in this embodiment four protrusions 31, but the actual number of protrusions 31 may be selected as desired, and is typically 2-8. The close fit between the protrusion 31 and the cavity 11 of the handle 1 further prevents the connecting rod 3 from slipping out of the handle 1 and the blocking plate 12. The protrusion 31 may be made of an elastic material, and the protrusion 31 may be elastically deformed appropriately when assembled with the cavity 11, so that the connection between the connection rod 3 and the handle 1 is more secure.

A plurality of protrusions 31, in this embodiment four protrusions 31, are also provided on the outer circumferential surface of the first portion of the coupler shaft 3. Likewise, the actual number of protrusions 31 may be selected as desired, and is typically 2-8. When an interference fit is employed between the tie bar 3 and the insertion hole 21 of the absorber 2, the protrusions 31 may be embedded in the inner wall of the insertion hole 21 of the absorber 2, thereby reinforcing the connection of the tie bar 3 and the absorber 2.

Third embodiment

FIG. 6 is a schematic structural view of a liquid collecting apparatus according to a third embodiment of the present invention; fig. 7 is a schematic cross-sectional view in the direction D-D of fig. 6. The structure of this embodiment is similar to that of the first embodiment, and the same parts as those of the first embodiment will not be described again.

As shown in fig. 6 and 7, according to a third embodiment of the present invention, there is provided a liquid collecting device comprising a handle 1, a connecting rod 3, and an absorbent body 2 provided with an insertion hole 21, the connecting rod 3 having a first portion inserted into the insertion hole 21 and a second portion axially movably connected to the handle 1, the connecting rod 3 being movable toward the handle 1 when the absorbent body 2 is compressed.

In this embodiment, the inner wall of the inner cavity 11 of the handle 1 corresponding to the second portion of the connecting rod 3 is provided with a corrugated protrusion 14 for enhancing the connecting strength between the handle 1 and the connecting rod 3, and the connecting rod 3 is not provided with a protrusion. In order to make the connection between the connecting rod 3 and the absorbent body 2 more reliable, it is preferable that the insertion hole 21 of the absorbent body 2 is formed to penetrate through the absorbent body 2, the fixing plate 32 is formed at one end of the connecting rod 3, the other end of the connecting rod is inserted into the cavity 11 of the handle 1 after passing through the insertion hole 21 of the absorbent body 2, and the connecting rod 3 is fixedly connected to the handle 1 by the corrugated protrusion 14 on the inner wall of the cavity 11. The fixing plate 32 can completely prevent the absorption body 2 from being separated from the connecting rod 3 by lifting the absorption body 2.

During assembly, the absorber 2 is inserted from one end of the connecting rod 3 and placed on the fixing plate 32, and then the connecting rod 3 is inserted into the inner cavity 11 of the handle 1, so that the absorber 2 is fixedly connected with the handle 1.

In the present embodiment, the inner wall of the inner cavity 11 of the handle 1 corresponding to the second portion of the connecting rod 3 is provided with a corrugated protrusion 14, and a second corrugated protrusion (not shown) matching with the corrugated protrusion 14 may be correspondingly provided on the outer circumferential surface of the second portion. The corrugated protrusion 14 and the second corrugated protrusion are engaged with each other to maintain the fixed connection between the handle 1 and the connecting rod 3. When a sufficiently large axial force is applied to the tie rod 3, the tie rod 3 can be pressed into the inner cavity 11.

In the present embodiment, the inner wall of the inner cavity 11 of the handle 1 corresponding to the second portion of the connecting rod 3 is further provided with saw-tooth protrusions 14, and the outer peripheral surface of the second portion may be correspondingly provided with second saw-tooth protrusions (not shown) matching with the saw-tooth protrusions 14. The serrations 14 engage the second serrations to maintain the fixed connection between the handle 1 and the coupler shaft 3. Preferably, a one-way saw-toothed snap-fit is used, so that when a sufficiently large axial force is applied to the connecting rod 3, the connecting rod 3 can be pressed into the inner cavity 11, and the connecting rod can only move upwards, but not downwards.

Fourth embodiment

FIG. 8 is a schematic structural view of a liquid collecting apparatus according to a fourth embodiment of the present invention; fig. 9 is a schematic cross-sectional view in the direction E-E of fig. 8. The structure of this embodiment is similar to that of the first embodiment, and the same parts as those of the first embodiment will not be described again.

As shown in fig. 8 and 9, according to a fourth embodiment of the present invention, there is provided a liquid collecting device comprising a handle 1, a connecting rod 3, and an absorbent body 2 provided with an insertion hole 21, the connecting rod 3 having a first portion inserted into the insertion hole 21 and a second portion axially movably connected to the handle 1, the connecting rod 3 being movable toward the handle 1 when the absorbent body 2 is compressed.

The part of the handle 1 adjacent to the absorption body 2 is provided with a partly closed cavity 11 extending in the axial direction of the tie rod 3, a second part of the tie rod 3 being inserted in the cavity 11.

As shown in fig. 8 and 9, the portion of the handle 1 having the inner cavity 11 is set in a partially closed state, that is, an opening is formed in the outer wall of the handle 1 at the inner cavity 11, which is shown in a circular arc shape in the sectional view shown in fig. 9.

In this embodiment, the handle 1 and the baffle 12 are preferably formed separately and then assembled together, and the cross section of the handle 1 near the baffle 12 is slightly larger than a semicircle, so as to prevent the connecting rod 3 from being pulled out of the inner cavity 11. The connecting rod 3 is made of polymethyl methacrylate and is a non-liquid-guiding material, the connecting rod 3 is tightly matched with the baffle 12, and the cylindrical connecting rod 3 can move up and down along the inner wall of the inner cavity 11 of the handle 1 under the condition of applying sufficient axial acting force. The absorber 2 is a sponge or bonded fiber provided with an insertion hole 21, the inner diameter of the insertion hole 21 is smaller than the diameter of the connecting rod 3, and the absorber 2 is tightly matched with the first part of the connecting rod 3 by utilizing the resilience of the sponge or bonded fiber so as to prevent the absorber 2 from slipping off from the connecting rod 3. The insertion hole 21 is a through hole penetrating the absorbent body 2, and the first portion of the connecting rod 3 may be tightly fitted only to a part of the inner wall of the insertion hole 21.

After the absorbent body 2 absorbs enough liquid, the absorbent body 2 of the acquisition device is inserted into a liquid collection container, the handle 1 is pressed downwards to squeeze the liquid in the absorbent body 2 into the liquid collection container, and the absorbent body 2 is compressed, and meanwhile, the connecting rod 3 positioned in the absorbent body 2 moves upwards along the inner wall of the cavity 11 of the handle 1.

In conclusion, the liquid collecting device has the advantages of simple structure and convenience in use, the handle is connected with the absorber by the connecting rod, safety and reliability are realized, the absorber can be thoroughly prevented from falling off, and meanwhile, the damage to the human body caused by the exposed connecting part after the absorber falls off is avoided. Therefore, the liquid collecting device is worthy of wide popularization and application.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes be made by those skilled in the art without departing from the spirit and technical spirit of the present invention, and be covered by the claims of the present invention.

Claims

1. A liquid collecting device, characterized in that, including a handle (1), a connecting rod (3) and an absorber (2) provided with an insertion hole (21), the connecting rod (3) has a first part inserted into the insertion hole (21) and a second part axially movably connected with the handle (1), when the absorber (2) is compressed, the connecting rod (3) can move towards the handle (1).

2. The liquid collecting device as claimed in claim 1, wherein the handle (1) is provided with an inner cavity (11) extending in the axial direction of the connecting rod (3), and the second portion is inserted into the inner cavity (11).

3. The liquid collecting device as claimed in claim 1, wherein a baffle (12) is arranged at the end of the handle (1) close to the absorbent body (2), and an inner hole (13) which can pass through the connecting rod (3) is arranged at the position of the baffle (12) corresponding to the insertion hole (21).

4. A liquid acquisition device according to claim 1, characterized in that the absorption body (2) is of a porous material.

5. The fluid collection device of claim 4, wherein the porous material is a bonded fiber or a sponge.

6. The liquid collecting device as claimed in claim 1, wherein the connecting rod (3) is a liquid-conducting material.

7. The liquid collecting device according to claim 1, wherein a plurality of protrusions (31) are provided on the outer circumferential surface of the first portion and/or the second portion of the connecting rod (3).

8. The fluid collection device according to claim 1, characterized in that the inner cavity (11) has, on its inner wall corresponding to said second portion of the connecting rod (3), corrugations or serrations (14).

9. The liquid collecting device as claimed in claim 1, wherein one end of the connecting rod (3) is provided with a fixing plate (32).

10. The liquid collecting device as claimed in claim 1, characterized in that the part of the handle (1) adjacent to the absorption body (2) is provided with a partly closed inner cavity (11) extending in the axial direction of the connecting rod (3), the second part being inserted into the inner cavity (11).