CN217940223U

CN217940223U - Liquid taking part for closed body fluid indwelling device

Info

Publication number: CN217940223U
Application number: CN202220993043.4U
Authority: CN
Inventors: 不公告发明人
Original assignee: Wuxi Kaishun Medical Equipment Manufacturing Co Ltd
Current assignee: Wuxi Kaishun Medical Equipment Manufacturing Co Ltd
Priority date: 2021-05-07
Filing date: 2022-04-27
Publication date: 2022-12-02
Anticipated expiration: 2032-04-27
Also published as: CN115301304A

Abstract

The utility model discloses a liquid taking part for closed body fluid indwelling device, which comprises a collecting side wall and a bottom plate connected with the collecting side wall, wherein a through hole is arranged on the bottom plate, the collecting side wall and the bottom plate are enclosed to form a collecting part, the collecting part is used for collecting body fluid, an axial side wall extending downwards from the bottom plate is arranged below the through hole, and the axial side wall is provided with an annular closed part; the annular closing part is used for being matched with the test tube in a sealing way; and spaced longitudinal grooves are arranged below the annular closed part. The utility model has the advantages of simple processing, low cost and sealed connection between the liquid taking part and the test tube.

Description

Liquid taking part for closed body fluid indwelling device

Technical Field

The present invention relates to medical devices, and more particularly to devices for collecting bodily fluids.

Background

When airtight body fluid is kept somewhere the ware and is got liquid spare and test tube cooperation, liquid was gathered when in the test tube and is full, if get liquid spare and test tube and be connected the cooperation and not sealed, can lead to liquid to leak outward from the junction in the test tube, lead to the test tube to pollute.

1. The inside diameter of test tube opening part cavity test tube stopper is fixed, so the external diameter of connecting portion is fixed. Need ensure that airtight body fluid is kept somewhere with getting the connecting portion of liquid spare and test tube for sealed cooperation, then need the external diameter of connecting portion great. The outer diameter of the connecting part is large, the diameters of the flow guide hole and the exhaust hole in the middle of the connecting part cannot be large due to limitation, liquid can leak out in the liquid collecting process due to the large diameter, and the distance between the through hole, namely the exhaust hole and/or the flow guide hole, and the outer side wall of the connecting part is large, namely the wall thickness is too thick under the condition, as shown in figure 1, the problem of shrinkage and shrinkage is solved in the preparation process, so that a pit 32 is formed on the axial side wall 3 of the connecting part, the connecting part of the liquid taking part and the test tube is not sealed, the liquid in the test tube leaks out from the connecting part in the liquid collecting process to cause pollution, and the collecting process cannot be completed;

2. because get liquid spare connecting portion and test tube opening cavity test tube stopper junction unsealed when the liquid level supports to get liquid spare water conservancy diversion passageway under export or exhaust passage under export the liquid level can continue to rise in the test tube, lead to test tube liquid level height to cross and can't carry out the detector and detect, detect the failure.

3. Because get liquid spare connecting portion lateral wall and test tube opening test tube stopper inside wall and be sealed cooperation, inserting the in-process of test tube opening cavity test tube stopper at getting liquid spare lower part lateral wall, can increase lumen internal pressure, lead to the test tube to shift down under the effect of lumen internal pressure after test tube opening and getting liquid spare lower part cooperation, drop.

Therefore, how to provide a processing is simple, the materials are few, with low costs, the thick wall does not shrink, the molding time is short, and test tube assembly cooperation is inserted the time resistance little, after the cooperation not the displacement, do not fall off and in vitro gaseous, liquid can not follow the liquid piece of getting that the junction of liquid piece and test tube assembly outflows and get liquid piece and test tube assembly's cooperation structure becomes the urgent technical problem that awaits a solution in the industry.

Disclosure of Invention

An object of the utility model is to provide an easy processing, and can effectively avoid when gathering the body fluid, liquid leaks outward from the junction of getting liquid spare and test tube, and the airtight body fluid that does not displace after the connection and does not fall off keeps somewhere the ware and gets liquid spare.

The utility model discloses one of the purpose is realized like this:

a liquid taking part for a closed body fluid indwelling device comprises a collecting side wall and a bottom plate connected with the collecting side wall, wherein a through hole is formed in the bottom plate, the collecting side wall and the bottom plate are enclosed to form a collecting part, the collecting part is used for collecting body fluid, an axial side wall extending downwards from the bottom plate is arranged below the through hole, a test tube comprises a hollow test tube plug fixed on the inner side of an opening part of the test tube, the hollow test tube plug is provided with an annular outer side wall and an annular inner side wall, the axial side wall penetrates through the hollow test tube plug, and the outer side wall of the hollow test tube plug is matched and fixed with the inner side wall of the opening part of the test tube; the axial side wall is provided with an annular closing part; the annular closing part is used for being in sealing fit with the upper part of the inner side wall of the hollow test tube plug of the test tube opening part; the side wall below the annular closed part is provided with spaced grooves, the grooves can be longitudinally arranged linear grooves, curved grooves, arc-shaped grooves and the like, and can also be transversely and obliquely arranged annular grooves, arc-shaped grooves and the like, and the grooves can be triangular, semicircular, rectangular, special-shaped and the like.

The annular closed part is used for being matched with a hollow test tube plug of the test tube opening part in a sealing way; annular closed portion is located and gets liquid bottom plate lower surface below groove top, for smooth 360 degrees annular lateral walls in the outside or recess etc. annular closed portion below is close to the vertical groove that is equipped with the interval, and vertical groove 360 degrees evenly distributed on the lateral wall, vertical groove width scope is between 0.5 millimeter to 1.5 millimeters, and the degree of depth is between 0.5 millimeter to 1.5 millimeters.

The hollow test tube plug is made of elastic material

In the above scheme, the annular closing part is an annular recess, a shoulder, an annular groove, a smooth side wall or a tapered side wall with a small upper part and a large lower part.

Further, the longitudinal grooves are formed by ribs arranged at intervals in the longitudinal direction.

In the scheme, the width of the annular closed part is 1mm-2mm.

The utility model has the advantages that:

1. the utility model discloses the groove cooperation of connecting portion has reduced the raw materials quantity to effectively avoid the axial lateral wall shrinkage of connecting portion to differ in preparation in-process, cause the deformation, ensure test tube and connecting portion complex leakproofness

2. Test tube opening portion test tube stopper inside wall upper portion and get the cyclic annular closed portion cooperation in-process of liquid spare lower part lateral wall owing to be equipped with its contact surface after the longitudinal groove on the axial lateral wall and reduced frictional force by a wide margin and can easily insert.

3. Get the in-process that liquid spare lower part lateral wall inserted test tube assembly opening cavity test tube stopper, guarantee that gas can discharge smoothly from getting the vertical groove on the liquid spare lateral wall in the test tube when getting liquid spare lateral wall and test tube stopper inside wall contact, do not increase lumen internal pressure, guarantee test tube opening test tube stopper inside wall upper portion and get behind the cyclic annular closed portion of liquid spare lower part lateral wall not influenced by intraductal pressure and cause the test tube assembly displacement, drop.

4. Ensure test tube opening test tube stopper inside wall upper portion and get the cyclic annular closed part cooperation of liquid spare lower part lateral wall and adopt the liquid back, liquid, gas do not leak outward in the test tube, and liquid level height can be spacing in the test tube.

Drawings

Fig. 1 is a schematic diagram of a prior art structure.

Fig. 2 is a schematic view 1 of the liquid-fetching component of the present invention.

Fig. 3 is a schematic view 2 of the liquid-fetching unit of the present invention.

Fig. 4 is a schematic view of the test tube assembly of the present invention 1.

Fig. 5 is a schematic view of the test tube assembly of the present invention shown in fig. 2.

Fig. 6 is the rear schematic view of the liquid-taking part and the test tube of the present invention.

In the figure:

100 taking a liquid part;

1 collecting the side wall, 2 a bottom plate,

3 axial side walls, 31 annular closures, 32 pockets;

4 slot, D width

200. Test tube assembly

5. Test tube, 51 test tube lumen, 52 test tube opening, 53 test tube opening inner side wall

6. Hollow test tube stopper, 61 test tube stopper inside wall, 62 test tube stopper inside wall upper portion.

Detailed Description

The invention will be further described with reference to the following drawings, which are only preferred embodiments and are not intended to limit the scope of the invention, but rather the intention is to cover all modifications and equivalent arrangements included within the scope of the claims.

Example 1: the following description is made with reference to FIGS. 2 and 3

A liquid-sampling member 100 for a closed body fluid indwelling device includes a collecting portion and a connecting portion.

The collection portion comprises a collection side wall 1 and a bottom plate 2 connected with the collection side wall 1, a through hole (not marked in the figure) is formed in the bottom plate 2, the collection side wall 1 and the bottom plate 2 are enclosed to form a collection portion, and the collection portion is used for collecting body fluid.

The connecting portion includes: an axial side wall 3 extending downward from the bottom plate 2 below the through hole, and an annular closing part 31 provided on the axial side wall 3; the width D of the annular closing portion 31 is 2mm; spaced longitudinal grooves 4 are provided below the annular closure portion 31.

Example 2: the method can be seen by combining FIG. 2, FIG. 3, FIG. 4, FIG. 5 and FIG. 6

A liquid taking part 100 for a closed body fluid retention device comprises a collecting part and a connecting part

The test tube 200 comprises a hollow test tube plug

The connecting portion includes: an axial side wall 3 extending downward from the bottom plate 2 below the through hole, and an annular closed part 31 provided on the axial side wall 3; the width D of the annular closing portion 31 is 2mm; spaced longitudinal grooves 4 are provided below the annular closure portion 31.

The hollow test tube plug comprises an annular outer side wall and an annular inner side wall, the axial side wall 3 penetrates through the hollow test tube plug 6, and the outer side wall 63 of the hollow test tube plug 6 is matched and fixed with the inner side wall 53 of the opening part of the test tube; the axial side wall 3 is provided with an annular closing part 31; the annular closing part 31 is used for being in sealing fit with the upper part 62 of the inner side wall of the hollow test tube plug of the test tube opening part 52; the side wall immediately below the annular closure 31 is provided with spaced longitudinal grooves 4 or annular grooves.

The annular closing part 31 is used for sealing and matching with the hollow test tube plug 6 of the test tube opening part; annular closed portion is located and gets liquid spare bottom plate lower surface below vertical groove top, and is sunken for the smooth 360 degrees annular sides in the outside, and annular closed portion 31 below is close to vertical groove 4 that is equipped with the interval, and 360 degrees evenly distributed are gone up to vertical groove 4 on the lateral wall, and vertical groove width is 0.8 millimeters, and the degree of depth is 1.2 millimeters.

Claims

1. A liquid taking part for a closed body fluid indwelling device comprises a collecting side wall and a bottom plate connected with the collecting side wall, wherein a through hole is formed in the bottom plate, the collecting side wall and the bottom plate are enclosed to form a collecting part, the collecting part is used for collecting body fluid, and an axial side wall extending downwards from the bottom plate is arranged below the through hole; the annular closing part is used for being matched with the opening part of the test tube in a sealing way; and the side wall below the annular closed part is provided with spaced grooves.

2. The fluid-fetching member for a closed body fluid retention device according to claim 1, wherein said annular closing portion is an annular shoulder or an annular recess or an annular side wall or an annular groove, and said groove is a longitudinal groove or a transverse groove or an oblique groove.

3. The device according to claim 1, wherein the annular closing portion is an annular sidewall and the outside diameter of the upper portion of the sidewall is smaller than the outside diameter of the lower portion of the sidewall.

4. The fluid-collecting member for a closed body fluid indwelling device according to claim 2, wherein the longitudinal grooves are uniformly distributed over 360 degrees on the outer side wall.

5. The fluid-collecting member for an airtight body fluid indwelling device according to claim 1, wherein the width of the groove is in the range of 0.5 mm to 1.5 mm.

6. The liquid taking piece for the closed body fluid indwelling device according to claim 1, comprising a test tube and a hollow test tube plug fixed at the inner side of the opening part of the test tube, wherein the test tube plug is provided with an annular inner side wall, and the axial side wall is penetrated through the hollow test tube plug; the axial side wall is provided with an annular closing part; the annular closing part is matched with the upper part of the inner side wall of the test tube plug in a sealing way at the opening part of the test tube.

7. The fluid-withdrawing member for an airtight body fluid retention device according to claim 6, wherein said annular closed portion is an annular shoulder or an annular recess or an annular side wall or an annular groove, and said groove is a longitudinal groove or a lateral groove or an oblique groove.

8. The device according to claim 6, wherein the annular closing part is an annular sidewall and the outside diameter of the upper part of the sidewall is smaller than the outside diameter of the lower part of the sidewall.

9. The fluid-collecting member for a closed body fluid indwelling device according to claim 7, wherein the longitudinal grooves are evenly distributed over 360 degrees on the outer side wall.

10. The access member for an encapsulated body fluid retention device according to claim 7, wherein said groove width is in the range of 0.5 mm to 1.5 mm and said longitudinal groove depth is in the range of 0.5 mm to 1.5 mm.