CN209269713U - Test tube is used in a kind of puncture - Google Patents
Test tube is used in a kind of puncture Download PDFInfo
- Publication number
- CN209269713U CN209269713U CN201820505247.2U CN201820505247U CN209269713U CN 209269713 U CN209269713 U CN 209269713U CN 201820505247 U CN201820505247 U CN 201820505247U CN 209269713 U CN209269713 U CN 209269713U
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- test tube
- rubber plug
- puncture
- nut cap
- circular hole
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Abstract
A kind of puncture is related to the field of medical instrument technology with test tube, is able to solve puncture and is needled into the problem of test tube is difficult, clast blocks up needle；The difficulty of processing of the matched puncture needle used is also reduced, ensure that the accuracy of sample size.The test tube includes: nut cap, rubber plug and test tube, and rubber plug inlay card in nut cap, realize and seal by test tube and rubber plug interference extrusion；Nut cap top is equipped with puncture orifice, borehole structure is equipped with inside rubber plug, and height of the circular hole bottom away from rubber plug bottom is 1-3mm, circular hole bottom is right-angled intersection groove, it is formed by forming the identical four fan-shaped silica gel pieces of angle on bottom surface, there is the scratch of certain depth between adjacent two panels silica gel piece；Puncture orifice, right-angled intersection groove and test tube coaxial arrangement.The utility model not only reduces puncture force by very thin circular hole bottom, and prevents the phenomenon that clast occur when puncturing, and the effective contact area of puncture needle is wrapped up after piercing and is reduced, the function of deflation can be played, ensure that the accuracy of sample size.
Description
Technical field
The utility model relates to the field of medical instrument technology, and in particular to test tube is used in a kind of puncture.
Background technique
Currently, most of vacuum test tubes used are by rubber plug, lid in the sample collection container used in medical industry
Cap, test tube composition, wherein nut cap button is together on rubber plug, and rubber plug and test tube cooperation seal, and nut cap top middle portion is equipped with for puncture needle
The opening being pierced into rubber plug injecting tube.Rubber plug generally includes bizet and protrudes the neck of bizet, and bizet is fixed in nut cap, neck
Portion seals test tube for filling in test tube, and neck is thicker, when puncture is needled into rubber plug, needs very big puncture force,
It just can guarantee the accuracy of sample size, while thickness is big crosspointer or to have deflation function on puncture needle structure when handling sample
Rubber plug the clast of rubber plug is also easy to produce when sample is returned and surveyed, cause stifled needle problem, lead to test crash.
Utility model content
In order to solve the problems in the existing technology, the utility model provides a kind of puncture test tube, is able to solve
Puncture is needled into the problem of test tube is difficult, clast blocks up needle；Meanwhile also reducing the difficult processing of the matched puncture needle used
Degree, ensure that the accuracy of sample size.
The utility model technical scheme applied to solve the technical problem is as follows:
A kind of puncture uses test tube, which includes: nut cap, rubber plug and test tube, the rubber plug inlay card in nut cap, test tube with
Rubber plug interference extrusion realizes sealing；The nut cap top is equipped with puncture orifice, and borehole structure, and circular hole bottom are equipped with inside the rubber plug
Height of the portion away from the rubber plug bottom is 1-3mm, and the circular hole bottom is right-angled intersection groove, identical by forming angle on bottom surface
Four fan-shaped silica gel pieces compositions, have the scratch of certain depth between adjacent two panels silica gel piece；The puncture orifice, right-angled intersection are recessed
Slot and test tube coaxial arrangement.
The beneficial effects of the utility model are: the utility model not only reduces puncture by very thin circular hole bottom
Power, and prevent the phenomenon that clast occur when puncturing, the effective contact area of puncture needle is wrapped up after piercing and is reduced, and deflation can be played
Function, ensure that the accuracy of sample size.Sealing function in groove, prevents liquid countercurrent well.
Detailed description of the invention
Fig. 1 is a kind of cross-sectional view of puncture test tube of the utility model；
Fig. 2 is a kind of disassembly diagram of puncture test tube of the utility model；
Fig. 3 is a kind of top view of puncture test tube of the utility model.
In figure, 1, nut cap, 11, puncture orifice, 12, indented endless convex edge, 13, vertical striped, 2, rubber plug, 21, cross friendship
Pitch groove, 22, rubber plug bizet, 23, rubber plug neck and 3, test tube.
Specific embodiment
The utility model is described in further details with reference to the accompanying drawings and examples.
As shown in Figure 1, in the present embodiment, a kind of puncture uses test tube, including nut cap 1, rubber plug 2, test tube 3,2 inlay card of rubber plug in
In nut cap 1, test tube 3 is pierced into nut cap 1 and is connect with 2 interference extrusion deformable seal of rubber plug, realizes good sealing effect.Nut cap
1 top is equipped with puncture orifice 11, and the puncture orifice 11 is pierced into and penetrates rubber plug 2 by nut cap 1 for puncture needle, injects liquid to test tube 3
Liquid in body or absorption test tube 3.
The length of the nut cap 1 is greater than the length of the rubber plug 2, and the rubber plug 2 is integrally located in the nut cap 1.It is described
1 interior surface upper end circumference uniform distribution indented endless convex edge 12 of nut cap, lower circumferential are evenly distributed with vertical striped 13.The rubber plug 2 leans on
One end of nearly nut cap 1 is rubber plug bizet 22, and the rubber plug 2 fills 1 upper end of nut cap, since rubber plug 2 is with flexible, passes through the glue
22 inlay card of rubber plug bizet of plug 2 is realized in the indented endless convex edge 12 of nut cap 1, and the rubber plug 2 is made firmly to be fixed on institute
It states in nut cap 1.The rubber plug 2 is rubber plug neck 23 close to one end of test tube 3, and the rubber plug neck 23 of the rubber plug 2 passes through interference
It is squeezed and deformed and is tightly connected with 3 inner wall of test tube, the nut cap 1 is press-connected by vertical striped 13 and 3 outer wall of test tube, vertical item
Line 13 can provide an inward pressure to the outer wall of test tube 3, to make rubber plug 2 and 3 inner wall of test tube, nut cap 1 and 3 outer wall of test tube
It fits closely and connects, fixed effect is more preferable, will not shake, be less susceptible to.
The rubber plug 2 is whole to be made of silica gel material, and hollow base is equipped with right-angled intersection groove 21, and right-angled intersection is recessed
The thinner thickness of slot 21, specific size 1-3mm, the right-angled intersection groove 21 is by forming identical four fans of angle on bottom surface
Shape silica gel piece forms, and has the scratch of certain depth between adjacent two panels silica gel piece, and depth has 0.5-2mm；It is needled into so puncturing
When be easier, the scratch stress on right-angled intersection groove 21 is split, and forms four fan-shaped silica gel pieces, four fan-shaped silicon after piercing
Film generates deformation, and the package effective contact area of puncture needle is smaller, and the changeable volume of air can pass through puncture needle in test tube 3
It releases or sucks with 21 contact gap of right-angled intersection groove, and repeatedly puncture will not generate clast, prevent stifled needle phenomenon, guarantee
The accuracy of sample size.After puncture needle takes out from test tube 3, four on right-angled intersection groove 21 fan-shaped silica gel pieces not by
To any external force, restore conventional sense, adjacent two panels silica gel piece fits closely, and playing test tube 3 will described in certain sealing function
The puncture orifice, right-angled intersection groove 21 and test tube 3 are coaxially disposed, and guarantee that puncture needle is inserted perpendicularly into puncture orifice and right-angled intersection is recessed
Slot.
Wherein right-angled intersection groove 21 can be substituted by annular groove, but in terms of effect or right-angled intersection groove
21 are more suitable for the technical program.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel design concept, any modification, equivalent replacement, improvement and so on should be included in the protection of the utility model
Within the scope of.
Claims (5)
1. a kind of puncture uses test tube, which is characterized in that the test tube includes: nut cap, rubber plug and test tube, and the rubber plug inlay card is in nut cap
Interior, test tube and rubber plug interference extrusion are realized and are sealed；The nut cap top is equipped with puncture orifice, is equipped with circular hole knot inside the rubber plug
Structure, and height of the circular hole bottom away from the rubber plug bottom is 1-3mm, the circular hole bottom is right-angled intersection groove, by bottom surface
The identical four fan-shaped silica gel piece compositions of angle are formed, there is the scratch of certain depth between adjacent two panels silica gel piece；The puncture
Mouth, right-angled intersection groove and test tube coaxial arrangement.
2. a kind of puncture according to claim 1 uses test tube, which is characterized in that the length of the nut cap is greater than the rubber plug
Length, the rubber plug is integrally located in the nut cap.
3. a kind of puncture according to claim 2 uses test tube, which is characterized in that the nut cap inner surface distinguishes circumference up and down
Uniformly distributed indented endless convex edge and vertical striped.
4. a kind of puncture according to claim 1 uses test tube, which is characterized in that the circular hole bottom is annular groove.
5. a kind of puncture according to claim 1 uses test tube, which is characterized in that the rubber plug is made of silica gel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820505247.2U CN209269713U (en) | 2018-04-10 | 2018-04-10 | Test tube is used in a kind of puncture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820505247.2U CN209269713U (en) | 2018-04-10 | 2018-04-10 | Test tube is used in a kind of puncture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209269713U true CN209269713U (en) | 2019-08-20 |
Family
ID=67597272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820505247.2U Active CN209269713U (en) | 2018-04-10 | 2018-04-10 | Test tube is used in a kind of puncture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209269713U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111904436A (en) * | 2020-08-06 | 2020-11-10 | 宁波汉科高分子材料有限公司 | Novel blood taking needle sheath |
| CN112473611A (en) * | 2020-11-10 | 2021-03-12 | 华中科技大学 | Reactor for researching biomass three-component pyrolysis interaction reaction |
-
2018
- 2018-04-10 CN CN201820505247.2U patent/CN209269713U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111904436A (en) * | 2020-08-06 | 2020-11-10 | 宁波汉科高分子材料有限公司 | Novel blood taking needle sheath |
| CN112473611A (en) * | 2020-11-10 | 2021-03-12 | 华中科技大学 | Reactor for researching biomass three-component pyrolysis interaction reaction |
| CN112473611B (en) * | 2020-11-10 | 2022-03-18 | 华中科技大学 | Reactor for researching biomass three-component pyrolysis interaction reaction |
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