CN216060530U

CN216060530U - Blood collection tube stopper

Info

Publication number: CN216060530U
Application number: CN202120647597.4U
Authority: CN
Inventors: 方忠; 吴红英
Original assignee: Hangzhou Ciping Medical Instrument Co ltd
Current assignee: Hangzhou Ciping Medical Instrument Co ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2022-03-18
Anticipated expiration: 2031-03-31

Abstract

The utility model discloses a plug port of a blood collection tube, which comprises a plug head and a concave part arranged in the middle of the plug head, wherein a needle head positioning device is arranged on the concave part. Realize that the syringe needle location of chock plug department pierces, prevent the contact of external environment and inside blood, reduce the loss of blood sampling apparatus, improve the efficiency and the accuracy of blood sampling, the incline appears when having solved current vacuum test tube syringe needle and stinging, easy roll-off, the problem that blood received the external air to sneak into.

Description

Blood collection tube stopper

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a plug for a blood collection tube.

Background

The vacuum blood sampling technology is the most advanced blood sampling technology at present, is popular and advocated by people in the medical field, and the vacuum blood sampling device replaces a disposable syringe for sampling blood, and has the advantages of simple operation, less pain of patients, high working efficiency, unlimited blood sampling amount, operator protection, environmental pollution reduction and the like. Meanwhile, the blood sampling tube plug of the vacuum blood sampling tube used in the prior art is easy to incline when the needle is pierced, the problems of blood sample seepage and the like occur, the loss of the blood sampling apparatus is large under the condition, and meanwhile, the air tightness of the tube opening can be damaged to reduce the accuracy of blood sampling.

To address the above issues, it is desirable to provide a novel blood collection vessel stopper that facilitates needle positioning penetration.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a plug port of a blood collection tube, which realizes the positioning and penetration of a needle head at the plug head, prevents the contact between the external environment and the internal blood, reduces the loss of a blood collection apparatus, improves the efficiency and the accuracy of blood collection, and solves the problems that the needle head of the existing vacuum blood collection tube is inclined when being penetrated, is easy to slide out and the blood is mixed by the external air.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a plug port of a blood collection tube comprises a plug head and a concave part arranged in the middle of the plug head, and a needle head positioning device arranged on the concave part. Through setting up syringe needle positioner, solve the problem that vacuum test tube can take place the skew when the syringe needle pierces.

Preferably, the needle location openings include three needle location openings to facilitate needle penetration location. The first type is completely exposed on the surface of the concave part, only the first half of the second type is exposed on the surface of the concave part, the other half of the second type is sunk in the concave part but does not penetrate through the concave part material, the third type is totally sunk in the concave part but does not penetrate through the concave part material, and the needle positioning opening enables the penetrated needle to accurately reach the midpoint of the blood collection tube, so that the blood collection process is more stable and safer.

Preferably, the middle part of the plug head is provided with a concave part. The concave part facilitates the penetration of the needle head, is not hindered, reduces the manufacturing materials, improves the positioning precision and reduces the material consumption.

Preferably, the plug includes a protrusion provided on a side wall of the recess. The convex part can help to stabilize the position of the needle cylinder, further strengthen the fixity and improve the piercing precision.

Preferably, the stopper comprises a first step part and a second step part with a diameter smaller than that of the first step part, the second step part is positioned at the lower end of the first step part, and the second step part is plugged with the inner wall of the vacuum blood collection tube. Reasonable structure, convenient assembly and better fixing effect.

Preferably, the joint of the first step part and the second step part of the plug head is provided with a circle of concave rings. The concave ring can apply pressure inwards when the blood sampling tube is connected with the step part, so that the connection is firmer, the air tightness is not easy to ventilate, and the installation is more convenient.

Preferably, the top of the plug head is provided with small convex points which are uniformly distributed on the top of the blood collection plug. Let the lid at test tube top close a frictional force and strengthen, let the test tube lid tightly fix at the test tube top and be difficult to drop.

Preferably, the plug is made of rubber. The rubber material has high density and good elasticity, can be tightly plugged with the outer cover and the blood sampling tube, and greatly improves the sealing property and the safety of the whole blood sampling device.

The utility model has the beneficial effects that:

1. the utility model is provided with the needle positioning port, and solves the problems that the existing vacuum blood collection tube has deflection when the needle is punctured, is easy to slide out, and blood is mixed by external air.

2. The blood sampling tube fixing device adopts a step part design, has a reasonable structure, is very convenient to assemble with a blood sampling tube, and has a good fixing effect and better sealing property.

3. The utility model is not easy to be infected by the outside air, and the exudation of the blood sample is not easy to occur.

4. The precision and the convenient degree of the needle when the needle is penetrated are improved, and the loss degree of the medical instrument is reduced.

Drawings

Fig. 1 is a first structural schematic diagram of the present invention.

Fig. 2 is a second structural schematic of the present invention.

Fig. 3 is a third structural diagram of the present invention.

In the figure: 1. a plug head, 2, a concave ring, 3, a concave part, 4, a needle head positioning opening, 5, a convex part, 6, a first step part, 7, a second step part, 8 and a small salient point

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

Example 1

As shown in figure 1, the blood sampling tube plug port of the utility model comprises a plug head 1, wherein a concave part 3 is arranged in the middle of the plug head 1, and a needle positioning port 4 is arranged on the concave part 3. The needle positioning port 4 is completely exposed on the surface of the concave part 3, and the needle positioning port 4 enables the punctured needle to accurately reach the midpoint of the blood sampling test tube, so that the blood sampling process is more stable and safer. The concave part 3 facilitates the penetration of the needle head, is not hindered, reduces the manufacturing materials, improves the positioning precision and reduces the consumable material.

Several convex parts 5 are distributed on the side wall of the concave part 3 of the plug head 1, and the convex parts are used for helping to stabilize the positions of the needle head and the needle cylinder, so that the puncturing position is more accurate, the fixity is further enhanced, and the puncturing precision is improved.

Stopper 1 includes first step portion 6 and second step portion 7 that the diameter is less than first step portion, and second step portion 7 is located 6 lower extremes of first step portion, and the diameter difference between two steps just in time can the plugging blood sampling test tube and cover the test tube mouth, and is rational in infrastructure, and the equipment is very convenient, and fixed effect is better.

The joint of the first step part 6 and the second step part 7 of the plug head 1 is provided with a circle of concave rings 2. Concave ring 2 can carry out the inside pressure application when heparin tube is connected with the step portion, lets connect more tightly, is difficult to ventilative, and the gas tightness is fine, and it is also more convenient to install.

The top of the plug head 1 is provided with small salient points 8, and the small salient points 8 are uniformly distributed on the top of the plug head 1 and are attached to the blood sampling tube cover. Let the lid at heparin tube top close the department frictional force and increase, let the heparin tube lid tightly fix and be difficult to drop at the heparin tube top.

The plug 1 is made of rubber. The rubber material has high density and good elasticity, can be tightly plugged with the outer cover and the blood sampling tube, and greatly improves the sealing property and the safety of the whole blood sampling device.

Example 2

As shown in fig. 2, the difference between the embodiment 2 of the present invention and the embodiment 1 is that the needle positioning port 4 of this embodiment is arranged in the middle of the recess 3 of the plug 1, and only the upper half is exposed on the surface of the recess 3, and the other half is sunk in the recess 3 without penetrating the material of the recess 3, and the rest is the same as the embodiment 1.

Example 3

As shown in fig. 3, the embodiment 3 of the present invention is different from the embodiment 1 in that the needle positioning port 4 of this embodiment is provided in the middle of the recess 3 of the stopper 1 and is entirely recessed inside the recess 3 without penetrating the material of the recess 3, and the rest is the same as the embodiment 1.

The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A heparin tube stopper mouth which characterized in that: including chock plug (1), establish recess (3) in chock plug (1) middle part, the syringe needle positioner who is equipped with on recess (3), syringe needle positioner includes syringe needle location mouth (4), and syringe needle location mouth (4) are established in recess (3) surface/centre/inside.

2. A blood collection tube stopper according to claim 1, wherein: the plug (1) comprises a convex part (5) arranged on the side wall of the concave part (3), and the convex part (5) is connected with the concave part (3).

3. A blood collection tube stopper according to claim 1 or 2, wherein: the plug head (1) comprises a first step part (6) and a second step part (7) with the diameter smaller than that of the first step part (6), and the second step part (7) is located at the lower end of the first step part (6).

4. A blood collection tube stopper according to claim 3, wherein: a circle of concave ring (2) is arranged at the joint of the first step part (6) and the second step part (7) of the plug head (1).

5. A blood collection tube stopper according to claim 1, 2 or 4, wherein: the top of the plug head (1) is provided with small salient points (8), and the small salient points (8) are uniformly distributed on the top of the plug head (1).

6. A blood collection tube stopper according to claim 1, 2 or 4, wherein: the plug head (1) is made of rubber.