WO2019006931A1

WO2019006931A1 - Fitting structure of leak-proof member, test tube, and liquid extraction member

Info

Publication number: WO2019006931A1
Application number: PCT/CN2017/108540
Authority: WO
Inventors: 单希杰
Original assignee: 无锡市凯顺医疗器械制造有限公司
Priority date: 2017-07-04
Filing date: 2017-10-31
Publication date: 2019-01-10
Also published as: CN208193123U; CN109201129A

Abstract

Provided is a fitting structure of a leak-proof member, a test tube (2) and a liquid extraction member (1), the fitting structure comprising the liquid extraction member (1), the test tube (2) and the leak-proof member, wherein the leak-proof member comprises a first leak-proof member (3) and a second leak-proof member (5), the first leak-proof member (3) comprises a first occluding membrane (30), and the second leak-proof member (5) comprises a second occluding membrane (50); the leak-proof member is connected to an opening portion (21) at an upper part (28) of the test tube in a fitted manner, and a lower part (11) of a liquid extraction member is connected to the leak-proof member in a fitted manner; when the liquid extraction member (1) is fitted with the leak-proof member, the first leak-proof member (3) and the second leak-proof member (5) are provided from top to bottom for the lower part (11) of the liquid extraction member to sequentially pass through, and in the process of the lower part (11) of the liquid extraction member being fitted with the first leak-proof member (3) and the second leak-proof member (5) in a pluggable manner, the lower part (11) of the liquid extraction member does not damage the original structure of the leak-proof member; and when the liquid extraction member (1) is separated from the leak-proof member, the first occluding membrane (30) and the second occluding membrane (50) can prevent the liquid in the test tube (2) and the liquid between the first occluding membrane (30) and the second occluding membrane (50) from leaking out, and the first leak-proof member (3) and the second leak-proof member (5) prevent, by means of being fitted and fixed with inner and outer side walls (26, 27) of the test tube (2), the leaking out of the liquid in the test tube (2) from the leak-proof member when the excess liquid in the liquid extraction member (1) is poured away after it is ensured that the liquid extraction member (1) finishes the collection of liquid.

Description

Matching structure of leakage preventing member and test tube and liquid taking member

Technical field

The present invention relates to the field of medical device technology, and more particularly to a device for collecting body fluids.

Background technique

The matching structure of the leakage preventing member of the prior art and the test tube and the liquid take-up member, the leakage preventing member is matched with the opening portion of the test tube, and the lower portion of the liquid take-off member is inserted and matched with the leakage preventing member, wherein the leakage preventing members are all single.

When a leak-proof member provided with a single-layer plugging film is used, when the excess liquid in the liquid take-up member is poured out after the liquid is collected, the liquid in the test tube sometimes leaks through the leak-proof member.

When the leakage preventing member of the double-layer sealing film is used, if the sealing film is required to cover the opening of the test tube 100%, the sealing film on the upper and lower layers of the single leakage preventing member cannot be configured to have a tangential structure, so that the leakage prevention is performed. The effect is flawed.

Therefore, how to provide a leak-proof piece and a test tube and a liquid take-off piece which are good in leak-proof and can be produced and processed, and the liquid in the test tube is not easily discharged from the leak-proof member after the liquid is collected by the liquid take-up member, and the excess liquid is poured out. The cooperation structure has become a technical problem that needs to be solved urgently in the industry.

Summary of the invention

The object of the present invention is to provide a leakage preventing member and a test tube which can realize the production process and the anti-leakage effect, and the liquid in the test tube is not easy to flow out from the leakage preventing member when the excess liquid is poured out after the liquid collecting member collects the liquid. The mating structure of the liquid take-up member.

The object of the invention is achieved in this way:

A matching structure of a leakage preventing member and a test tube and a liquid take-up member, comprising a liquid take-up member, a test tube and a leak-proof member. The leakage preventing member includes a leakage preventing member and a leakage preventing member B. The anti-leakage piece A is provided with a sealing film A, and the leakage preventing piece B is provided with a sealing film B. The leakage preventing member is coupled to the upper open end of the test tube, and the lower portion of the liquid take-up member is coupled to the leakage preventing member. When the liquid take-up member and the leakage preventing member are engaged, the leakage preventing member A and the leakage preventing member B are sequentially passed through the lower portion of the liquid taking member from top to bottom, and the lower portion of the liquid taking member is at the same place In the process of inserting and removing the leakage preventing member A and the leakage preventing member B, the lower portion of the liquid take-up member does not damage the The original structure of the leakage preventing member; when the liquid taking member and the leakage preventing member are separated, the sealing film A and the sealing film B can prevent the liquid in the test tube and the sealing film and the sealing film B The leakage of the liquid between the leakage preventing member and the inner side wall of the test tube is fixed, and the leakage preventing member B is fixedly coupled with the inner side wall of the test tube.

In the above solution, the leakage preventing member is located above the leakage preventing member B, and the sealing film A of the leakage preventing member is provided with an insertion structure for the lower portion of the liquid taking member. The insertion structure for the lower portion of the liquid take-up member may be a through hole, a tangent line, or a through hole and a tangent line provided on the sealing film.

Further, the leakage preventing member A is provided with an annular protrusion A which cooperates with the annular groove B on the inner side wall of the test tube. The leakage preventing member comprises an annular side wall arm A and a sealing film arm A, and the annular protrusion A is located on an outer side wall of the annular side wall arm; the annular side wall may be an annular side wall or may be similar Annular side wall.

Further, the leakage preventing member is provided with an annular step for positioning and matching with the open end surface of the test tube. The leakage preventing member includes an annular side wall arm and an sealing film arm, and the annular step is located on the outer side wall of the annular side wall arm and adjacent to or adjacent to the upper opening end surface of the annular side wall armor.

In the above solution, the leakage preventing member A is provided with an annular step, and the annular protrusion C is located on the lower end surface of the leakage preventing member, and the annular step is used for positioning and matching with the open end surface of the test tube. The leakage preventing member may also be fixed to the open end surface of the test tube by an adhesive such as glue.

The invention can also be implemented in the following manner, the leakage preventing member A is fixedly fixed with the outer side wall of the test tube, and the leakage preventing member B is fixedly fixed with the inner side wall of the test tube.

Further, the leakage preventing member comprises an annular side wall armor and a sealing film arm, and a lower portion of the liquid taking member cooperates with an inner side wall of the annular side wall arming above the sealing film.

Further, when the upper surface of the sealing film is provided with the leakage preventing member and the upper portion of the test tube, the structure for preventing the insertion of the insertion structure through the lower portion of the liquid supply member is prevented.

Further, the structure in which the anti-interlacing structure is deformed is provided with a ring shape on the outer circumference of the tangential line of the upper surface of the plugging film. Concave and convex structures, such as annular pleats, annular grooves, annular projections, annular grooves and projections, and the like.

The present invention can also be implemented in the following manner, the leakage preventing member is fixedly fixed with the open end surface of the test tube, and the leakage preventing member B is fixedly fixed with the inner side wall of the test tube.

Further, the leakage preventing member is fixedly fixed to the open end surface of the test tube, and the lower end surface of the leakage preventing member and the open end surface of the test tube may be fixed by an adhesive, or may be a leakage preventing member. An annular protrusion C is disposed on the lower end surface, and a ring groove is formed on the open end surface of the test tube, and the annular protrusion C and the ring groove are matched.

In the above solution, the sealing film covers the opening area of the test tube by more than 90% and is less than or equal to 100%.

In the above solution, the leakage preventing member B includes an annular side wall B and a sealing film B. The outer side wall of the annular side wall B is provided with an annular protrusion, and the annular protrusion and the test tube The ring groove on the inner side wall is fixed and fixed.

Further, the upper surface of the sealing film may be a downward inclined surface or a downwardly concave curved surface, or may be a flat surface. The upper surface of the sealing film B is a downward slope or a curved surface that is recessed downward.

The invention has the advantages that the technical solution of the invention can prevent the liquid in the test tube from flowing out from the leakage preventing member when the excess liquid in the liquid taking portion is poured out after ensuring that the liquid collecting member is finished. The tangential line is provided on both the upper and lower layers of the leakage preventing member, and the sealing film of the leakage preventing member can cover the problem that the opening of the test tube is not less than 90% and cannot be produced.

DRAWINGS

1 is a cross-sectional view-1 of a composite structure in accordance with an embodiment of the present invention.

2 is a cross-sectional view-2 of a combined structure according to an embodiment of the present invention

FIG. 3 is a schematic diagram-1 of the leakage preventing member and the test tube according to an embodiment of the present invention.

Figure 4 is an enlarged schematic view of a portion A of Figure 2.

Fig. 5 is a schematic view showing the structure of a test tube according to an embodiment of the present invention.

Figure 6 is a cross-sectional view - 2 of a test tube in accordance with one embodiment of the present invention.

Figure 7 is a schematic view - 2 of the leakage preventing member and the test tube according to an embodiment of the present invention, and Figure 14 is a liquid take-off member in the embodiment. Corresponding exploded perspective view of the leak preventer and test tube.

Figure 8 is a cross-sectional view - 3 of a composite structure according to an embodiment of the present invention, and Figure 15 is a corresponding perspective cross-sectional view of the leakage preventing member and the test tube in the embodiment.

Figure 9 is an enlarged schematic view of a portion B of Figure 8.

Figure 10 is a cross-sectional view - 3 of a test tube in accordance with one embodiment of the present invention.

FIG. 11 is a schematic exploded view of the liquid-preventing member, the leakage preventing member and the test tube in the embodiment, and FIG. 17 is a perspective view of the embodiment of the present invention. FIG. Corresponding three-dimensional cross-sectional view of the leakage preventing member and the test tube.

Figure 12 is a cross-sectional view - 4 of a composite structure in accordance with one embodiment of the present invention.

Figure 13 is an enlarged schematic view of a portion C of Figure 12;

In the picture:

1 take the liquid, 11 take the lower part of the liquid, 12 vents, 13 liquid guide holes, 14 partitions

2 test tubes, 21 test tube openings, 22 ring grooves B, 23 ring grooves C, 24 test tube open end faces, 25 ring groove nails, 26 test tube inner side walls, 27 test tube outer side walls, 28 test tube upper portions,

3 leakproof armor, 30 plugging film armor, 31 ring side wall armor, 32 ring bumps A, 33 ring steps, 34 ring protrusions C, 35 tangent,

5 leak-proof piece B, 50 block film B, 51 ring side wall B, 52 ring protrusion, 53 tangent.

Detailed ways

The embodiments of the present invention and the invention are further described in detail below with reference to the accompanying drawings, but the following embodiments are not intended to limit the invention, and the similar structures and similar variations of the present invention are included in the scope of the present invention.

As shown in FIG. 1-17, the fitting structure of the leakage preventing member of the present invention and the test tube and the liquid taking member comprises a liquid taking member 1, a test tube 2 and a leakage preventing member. The leakage preventing member is provided with a sealing film. The leakage preventing member includes a leakage preventing member A 3 and a leakage preventing member B 5. Leakproof parts and test tube 2 The upper opening portion is coupled and the lower portion of the liquid take-up member 1 is coupled to the leakage preventing member. When the liquid take-up member 1 and the leakage preventing member are matched, the leakage preventing member A and the leakage preventing member B are sequentially supplied from the top to the bottom to the lower portion of the liquid taking member 1, and the lower portion of the liquid taking member 1 and the leakage preventing member A 3 In the process of inserting and unplugging the leakage piece 5, the lower part of the liquid take-up part 1 does not damage the original structure of the leakage preventing part; when the liquid taking part 1 and the leakage preventing part are separated, the sealing film can prevent the liquid in the test tube 2 and the sealing The leakage of liquid between the membranes.

In the first embodiment, as shown in FIG. 1-6, the leakage preventing member 3 is fixedly fixed with the inner side wall 26 of the test tube, and the leakage preventing member B is fixedly coupled with the inner side wall 26 of the test tube.

In the above solution, the leakage preventing member 3 is located above the leakage preventing member B, and the sealing film 30 of the leakage preventing member 3 is provided with an insertion structure for the lower portion of the liquid taking member 1. The insertion structure through which the lower portion of the liquid supply member 1 is inserted may be a through hole, a tangent line, or a through hole and a tangent line provided on the sealing film 30.

Further, the leakage preventing member 3 is provided with an annular projection A32 which is engaged with the annular groove B 22 on the inner side wall 26 of the test tube. The leakage preventing member 3 includes an annular side wall nail 31 and a sealing film nail 30, and the annular projection A32 is located on the outer side wall of the annular side wall nail 31.

Further, the leakage preventing member 3 is provided with an annular step 33 for positioning and engaging with the open end face 24 of the test tube. The leakage preventing member 3 includes an annular side wall nail 31 and a sealing film nail 30, and the annular step 33 is located on the outer side wall of the annular side wall nail 31 and abuts or is adjacent to the upper opening end surface of the annular side wall nail 31.

In the above solution, the leakage preventing member A is provided with an annular step 33, and the annular projection C34 is located on the lower end surface of the leakage preventing member A, and the annular step 33 is for positioning and engaging with the open end surface 24 of the test tube. The leakage preventing member 3 can also be fixed to the open end face 24 of the test tube by an adhesive such as glue.

In the second embodiment, as shown in FIGS. 7-10 and 14-15, the basic structure of the member is the same as that of the first embodiment, and the leakage preventing member A 3 is fixed with the outer tube side wall 27, and the leakage preventing member B and the test tube are fixed. The inner side wall 26 is fitted and fixed.

Further, the leakage preventing member 3 includes an annular side wall nail 31 and a sealing film nail 30, and the lower portion of the liquid take-up member 1 is engaged with the inner side wall of the annular side wall nail 31 above the sealing film nail 30.

Further, when the upper surface of the sealing film 30 is provided with the leakage preventing member 3 and the upper portion 28 of the test tube, the structure of the sealing film 30 on which the insertion structure of the lower portion of the liquid taking member 1 is inserted is prevented from being deformed.

Further, the structure for preventing the interspersed structure from being deformed is provided with an annular concave-convex structure such as an annular pleat, an annular groove, an annular protrusion, an annular groove, a protrusion, and the like on the outer circumference of the tangential line of the upper surface of the occlusion film. Wait.

In the third embodiment, as shown in FIGS. 11-13 and 16-17, the basic structure of the member is the same as that of the first embodiment, and the leakage preventing member A 3 is fixed with the open end surface 24 of the test tube, and the leakage preventing member B and the test tube are fixed. The inner side wall 26 is fitted and fixed.

Further, the leakage preventing member 3 is fixedly fixed to the open end surface 24 of the test tube, and the lower end surface of the leakage preventing member 3 and the open end surface 24 of the test tube may be fixed by an adhesive, or may be the lower end surface of the leakage preventing member 3. An annular protrusion C34 is arranged on the upper end surface 24 of the test tube, and a ring groove 25 is arranged on the test tube. The annular protrusion C34 and the ring groove 25 are matched.

In the above solution, the sealing membrane nail 3 covers the tube opening portion 21 with an area greater than 90% and less than or equal to 100%.

In the above solution, the leakage preventing member B includes an annular side wall B 51 and a sealing film B 50, and the outer side wall of the annular side wall B 51 is provided with an annular protrusion 52, the annular protrusion 52 and the inner side wall of the test tube. The ring groove C 23 on the 26 is fixed.

Further, the upper surface of the sealing film 3 may be a downward slope or a downwardly concave curved surface, or may be a flat surface. The upper surface of the sealing film B is a downward slope or a curved surface that is recessed downward.

Through the implementation of the technical solution of the present invention, after the liquid collection of the liquid take-up member is completed, the excess liquid in the liquid take-up member can be drained, and the liquid in the test tube can be prevented from flowing out from the leakage preventing member. The upper and lower layers of the leakage member are provided with a tangential line, and the sealing film of the leakage preventing member can cover the problem that the opening of the test tube is not less than 90% and cannot be produced.

Claims

The structure of the leakage preventing component and the test tube and the liquid taking part comprises a liquid taking part, a test tube and a leakage preventing piece, the leakage preventing part comprises a leakage preventing piece and a leakage preventing piece B, and the leakage preventing piece comprises a sealing film A, the leakage preventing member B includes a sealing film B, and the leakage preventing member is coupled with the upper opening portion of the test tube, and the lower portion of the liquid taking member is coupled with the leakage preventing member, wherein the liquid taking portion is When the leakage preventing member is engaged with the leakage preventing member, the lower portion of the liquid taking member is sequentially passed through from the top to the bottom, and the lower portion of the liquid taking member is in contact with the leakage preventing member. In the process of inserting and unplugging the leakage preventing member, the lower portion of the liquid taking member does not damage the original structure of the leakage preventing member; when the liquid taking member and the leakage preventing member are separated, the sealing film is A and the sealing membrane B can prevent the liquid in the test tube and the leakage of the liquid between the sealing membrane and the sealing membrane B.
The mating structure according to claim 1, wherein:

The leakage preventing member A is located above the leakage preventing member B, and the sealing film A of the leakage preventing member is provided with an insertion structure for the lower portion of the liquid taking member.
The mating structure according to claim 2, wherein:

The insertion structure for the lower portion of the liquid take-up member is a through hole and/or a tangential line provided on the sealing film.
The mating structure according to claim 1 or 2 or 3, wherein the leakage preventing member A is provided with an annular projection A, and the annular projection A is engaged with the annular groove B on the inner side wall of the test tube.
The mating structure according to claim 4, wherein the leakage preventing member comprises an annular side wall A, and the annular projection A is located on the outer side wall of the annular side wall armor.
The mating structure according to claim 1 or 2 or 3 or 5, wherein the leakage preventing member is provided with an annular step for positioning and engaging with the open end surface of the test tube.
The mating structure according to claim 4, wherein the leakage preventing member is provided with an annular step for positioning and engaging with the open end surface of the test tube.
The mating structure according to claim 6 or 7, wherein the leakage preventing member comprises an annular side wall arm, and the annular step is located on the outer side wall of the annular side wall A and adjacent to or adjacent to the annular side The upper end of the armor.
The mating structure according to any one of claims 1 to 5, wherein the leakage preventing member A is provided with an annular step, and the annular projection C is located on the lower end surface of the leakage preventing member. The annular step is used to positionally engage the open end face of the test tube.
The mating structure according to any one of claims 1 to 9, wherein the leakage preventing member B comprises an annular side wall B, and the outer side wall of the annular side wall B is provided with an annular convex portion. The annular protrusion is fixedly coupled with the annular groove C on the inner side wall of the test tube.
The mating structure according to any one of claims 1 to 10, wherein the sealing film is covered The area of the opening of the test tube is greater than 90% and less than or equal to 100%.
The structure of the leakage preventing component and the test tube and the liquid taking part comprises a liquid taking part, a test tube and a leakage preventing piece, the leakage preventing part comprises a leakage preventing piece and a leakage preventing piece B, and the leakage preventing piece comprises a sealing film A, the leakage preventing member B includes a sealing film B, and the leakage preventing member is coupled with the upper opening portion of the test tube, and the lower portion of the liquid taking member is coupled with the leakage preventing member, wherein the liquid taking portion is When the leakage preventing member is engaged with the leakage preventing member, the lower portion of the liquid taking member is sequentially passed through from the top to the bottom, and the lower portion of the liquid taking member is in contact with the leakage preventing member. In the process of inserting and unplugging the leakage preventing member, the lower portion of the liquid taking member does not damage the original structure of the leakage preventing member; when the liquid taking member and the leakage preventing member are separated, the sealing film is A and the sealing film B can prevent the liquid in the test tube and the leakage of the liquid between the sealing film A and the sealing film B, and the leakage preventing member is fixedly fixed with the outer side wall of the test tube, and the leakage preventing member B The inner side wall of the test tube is fixed.
The mating structure according to claim 12, wherein the leakage preventing member comprises an annular side wall arm, a lower portion of the liquid taking member and an inner side wall of the annular side wall arming above the sealing film Cooperate.
The mating structure according to claim 12 or 13, wherein the upper surface of the sealing film is provided to prevent deformation of the upper surface of the sealing film after the leakage preventing member is fixedly engaged with the upper portion of the test tube. structure.
The mating structure according to claim 14, wherein the structure for preventing deformation of the upper surface of the sealing film is such that an annular concave-convex structure is provided on the outer circumference of the upper surface of the sealing film A. In order to ensure that the tangential line does not increase after the leakage preventing member is fixedly fitted with the upper portion of the test tube, the leakage prevention performance is ensured.
The mating structure according to claim 15, wherein the annular concavo-convex structure is an annular pleat, an annular groove, and/or an annular projection.
The mating structure according to any one of claims 12-16, wherein the leakage preventing member B comprises an annular side wall B, and the outer side wall of the annular side wall B is provided with an annular convex portion. The annular protrusion is fixedly coupled with the annular groove C on the inner side wall of the test tube.
The mating structure according to any one of claims 12-17, characterized in that the sealing membrane covers an opening area of the test tube of more than 90% and less than or equal to 100%.
The structure of the leakage preventing component and the test tube and the liquid taking part comprises a liquid taking part, a test tube and a leakage preventing piece, the leakage preventing part comprises a leakage preventing piece and a leakage preventing piece B, and the leakage preventing piece comprises a sealing film A, the leakage preventing member B includes a sealing film B, and the leakage preventing member is coupled with the upper opening portion of the test tube, and the lower portion of the liquid taking member is coupled with the leakage preventing member, wherein the liquid taking portion is When the leakage preventing member is engaged with the leakage preventing member, the lower portion of the liquid taking member is sequentially passed through from the top to the bottom, and the lower portion of the liquid taking member is in contact with the leakage preventing member. In the process of inserting and unplugging the leakage preventing member, the lower portion of the liquid taking member does not damage the original structure of the leakage preventing member; when the liquid taking member and the leakage preventing member are separated, the sealing film is A and the sealing film B can prevent the liquid in the test tube and the leakage of the liquid between the sealing film A and the sealing film B, and the leakage preventing member The open end surface of the test tube is fixedly fixed, and the leakage preventing member B is fixedly fixed with the inner side wall of the test tube.
The mating structure according to claim 19, wherein the leakage preventing member is fixedly coupled to the open end surface of the test tube, and the lower end surface of the leakage preventing member is bonded to the open end surface of the test tube. The agent is fixed, or the lower end surface of the leakage preventing member is provided with an annular protrusion C, and the end surface of the open end of the test tube is provided with a ring groove arm, and the annular protrusion C and the ring groove arm are matched. .
The mating structure according to claim 19 or 20, wherein the leakage preventing member B comprises an annular side wall B, and the outer side wall of the annular side wall B is provided with an annular protrusion, the ring The protrusion is fixed with the ring groove C on the inner side wall of the test tube.
The mating structure according to claim 19, 20 or 21, wherein the upper surface of the sealing film is a downwardly inclined slope or a downwardly concave curved surface or plane.
The mating structure according to any one of claims 19 to 22, characterized in that the upper surface of the sealing film B is a downwardly inclined slope or a downwardly concave curved surface.
The mating structure according to any one of claims 19 to 23, wherein the sealing film covers the opening area of the test tube by more than 90% and less than or equal to 100%.