CN220546273U

CN220546273U - Blood sampling tube for clinical examination

Info

Publication number: CN220546273U
Application number: CN202222949755.9U
Authority: CN
Inventors: 刘畅
Original assignee: Liu Chang International Co Ltd
Current assignee: Liu Chang International Co Ltd
Priority date: 2022-11-04
Filing date: 2022-11-04
Publication date: 2024-03-01
Anticipated expiration: 2032-11-04

Abstract

The utility model discloses a blood sampling tube for clinical examination, which relates to the technical field of blood sampling tubes for clinical examination, and comprises an outer tube body, a middle sleeve and an inner sleeve, wherein the inner sleeve is nested in the middle sleeve, and the middle sleeve is nested in the outer tube body; a separation baffle is arranged in the middle sleeve, and a blood taking needle is vertically fixed in the middle of the separation baffle; the baffle plate is provided with a leak hole; a spring is arranged between the bottom of the inner sleeve and the separation baffle; the outside of the middle sleeve is fixedly provided with a limiting ring, and the pipe orifice of the outer pipe body is positioned below the limiting ring. The utility model adopts the structure of combining the blood collection tube and the blood collection needle, can accelerate the blood collection process, shortens the blood collection time, reduces the blood collection difficulty, realizes in-situ blood collection and reduces the probability of pollution of blood samples.

Description

Blood sampling tube for clinical examination

Technical Field

The utility model belongs to the technical field of blood collection tubes, and particularly relates to a blood collection tube for clinical examination.

Background

The blood collection tube is used as an indispensable instrument in clinical test work and is used for collecting blood samples in clinical test, in clinical pediatric test, blood samples are generally collected by fingertips aiming at pediatric clinical test blood collection, after the fingertips are disinfected, the fingertips are pricked by the blood collection needle first and then pressed by the fingers, the flowing blood is collected back and forth on the fingertips in a scraping mode by the tube orifice of the U-shaped blood collection tube, blood collection is carried out in a mode, the duration is long, the blood collection difficulty is high, the tube orifice of the blood collection tube is contacted with skin for many times, and the risk of pollution of the blood samples exists.

Disclosure of Invention

The utility model aims to solve the defects of long duration and great difficulty of blood sampling of fingertips of children and the risk of pollution of blood samples in the prior art, and provides a blood sampling tube for clinical examination. This clinical examination is with heparin tube and blood taking needle combined structure, can accelerate blood sampling process, shortens blood sampling time, reduces the blood sampling degree of difficulty, realizes the normal position blood sampling, reduces the probability that blood sample was polluted.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the blood sampling tube for clinical examination comprises an outer tube body, a middle sleeve and an inner sleeve, wherein the inner sleeve is nested in the middle sleeve, and the middle sleeve is nested in the outer tube body; a separation baffle is arranged in the middle sleeve, and a blood taking needle is vertically fixed in the middle of the separation baffle; the separation baffle is provided with a leak hole; a spring is arranged between the bottom of the inner sleeve and the separation baffle; and a limiting ring is fixedly arranged on the outer side of the middle sleeve, and the pipe orifice of the outer pipe body is positioned below the limiting ring.

Further, an outward protruding extension is arranged on the pipe orifice of the inner sleeve.

Furthermore, binding belts are fixedly arranged on two sides of the extension, and a burr surface and a thorn surface of the magic tape are respectively arranged on the corresponding surfaces of the two binding belts.

Further, the inner diameter of the inner sleeve is the same as the outer diameter of the middle sleeve, so that the inner sleeve and the middle sleeve are connected in a sealing way.

Further, the outer diameter of the middle sleeve is the same as the inner diameter of the outer tube body, so that the middle sleeve and the outer tube body are connected in a sealing mode.

Further, the sharp end of the blood taking needle is lower than the pipe orifice of the inner sleeve, and the stroke of the inner sleeve in the middle sleeve can enable the sharp end of the blood taking needle to be just exposed out of the pipe orifice of the inner sleeve.

Further, the leak hole is funnel-shaped.

The blood sampling tube for clinical examination provided by the utility model has the beneficial effects that:

the utility model adopts the structure that the blood sampling tube is combined with the blood sampling needle, when sampling is carried out, the sampling needle in the sampling tube is exposed by pressing the sampling tube, skin tissue of a fingertip is punctured, the blood sampling needle can be automatically retracted under the action of the spring, then the pressure in the tube body is reduced by outwards pumping the outer tube body, the blood outflow of the fingertip is assisted, the blood sampling process is accelerated, the blood sampling difficulty is reduced, in-situ blood sampling is realized in the blood sampling process, the mouth of the blood sampling tube is prevented from being in reciprocating contact with the skin, and the probability of pollution of the blood sample is reduced.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of the three-dimensional mechanism of the present utility model in embodiment 1;

FIG. 2 is a schematic view of the internal structure of the present utility model in embodiment 1;

FIG. 3 is an exploded view of the present utility model in example 1;

FIG. 4 is a schematic diagram of a fingertip blood collection procedure in example 1 in accordance with the present utility model;

FIG. 5 is a schematic view of the three-dimensional mechanism of the present utility model in embodiment 2;

marked in the figure as: 1. an outer tube body; 2. a middle sleeve; 21. a limiting ring; 22. a baffle plate; 23. a leak hole; 3. a blood taking needle; 4. a spring; 5. an inner sleeve; 51. epitaxy; 6. a tie-down strap; 61. a rough surface; 62. the thorn face.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

In the description of the present utility model, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "outer tube," "middle sleeve," and "inner sleeve" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The structural features of the present utility model will now be described in detail with reference to the accompanying drawings.

Example 1

Referring to fig. 1 to 3, a blood collection tube for clinical examination comprises an outer tube body 1, a middle sleeve 2 and an inner sleeve 5, wherein the inner sleeve 5 is nested in the middle sleeve 2, the middle sleeve 2 is nested in the outer tube body 1, in order to enable the middle sleeve 2 and the inner sleeve 5 to be connected in a sealing manner, the inner diameter of the inner sleeve 5 is identical to the outer diameter of the middle sleeve 2, no gap exists between the inner sleeve 5 and the middle sleeve 2, in order to enable the middle sleeve 2 and the outer tube body 1 to be connected in a sealing manner, the outer diameter of the middle sleeve 2 is identical to the inner diameter of the outer tube body 1, no gap exists between the middle sleeve 2 and the outer tube body 1, when the outer tube body 1 is pulled outwards, the inner space of the blood collection tube can be enlarged, and suction force is concentrated on the tube mouth of the inner sleeve 5.

Referring to fig. 2, a separation baffle 22 is arranged in the middle sleeve 2, a blood taking needle 3 is vertically fixed in the middle of the separation baffle 22, the blood taking needle 3 is used for puncturing the skin of a fingertip, a leak hole 23 is formed in the separation baffle 22, the leak hole 23 is funnel-shaped, and a blood sample entering the middle sleeve 2 enters the outer tube body 1 from the leak hole 23.

Referring to fig. 2-3, a spring 4 is arranged between the bottom of the inner sleeve 5 and the baffle 22, the spring 4 has an elastic supporting function on the inner sleeve 5, and when the inner sleeve 5 is not pressed, the spike end of the blood taking needle 3 is lower than the pipe orifice position of the inner sleeve 5, so that the damage to the skin when the inner sleeve 5 is contacted with the skin can be avoided, and the stroke of the inner sleeve 5 in the middle sleeve 2 can enable the spike end of the blood taking needle 3 to just expose the pipe orifice position of the inner sleeve 5. When the pipe orifice of the inner sleeve 5 is pressed, the inner sleeve 5 moves into the middle sleeve 2, and the needle head of the blood taking needle 3 is exposed and used for puncturing the skin, after puncturing, the pressing is released, the inner sleeve 5 ejects and resets again under the action of the spring 4, so that the blood taking needle 3 is separated from the skin, and the blood taking of the blood taking needle 3 is completed. In order to control the penetration degree of the needle head of the blood taking needle 3, an outward protruding extension 51 is arranged on the pipe orifice of the inner sleeve 5, the extension 51 can increase the contact area between the pipe orifice and the skin of the fingertip on one hand, the pipe orifice is prevented from being too thin to damage the skin in the pressing process, and the maximum stroke of the middle sleeve 2 can be limited on the other hand, so that the needle head of the blood taking needle 3 is just exposed, and the contact area is enough to puncture the skin of the fingertip.

Referring to fig. 1-3, a limiting ring 21 is fixedly arranged on the outer side of the middle sleeve 2, and the pipe orifice of the outer pipe body 1 is positioned below the limiting ring 21. The stop collar 21 is provided for holding in the hand on the one hand and for limiting the position of the outer tubular body 1 on the other hand.

The blood collection tube for clinical examination is easy to operate, on one hand, the blood collection process can be accelerated, the blood collection difficulty is reduced, on the other hand, in-situ blood collection can be realized in the use process, the reciprocating contact between the orifice of the blood collection tube and the skin is avoided, and the probability of pollution of a blood sample is reduced.

Specifically, referring to fig. 4, when in use, firstly, the skin of a fingertip is disinfected, the blood collection tube is taken out, the outer tube body 1 is held by a hand, the orifice of the inner tube 5 is propped against the fingertip blood collection area, then the inner tube 5 is pressed downwards, the needle tip of the blood collection needle 3 is exposed, the fingertip skin is pierced, then the pressure is released, under the action of the spring 4, the inner tube 5 and the blood collection needle 3 are reset, the needle tip of the blood collection needle 3 is separated from the skin, at this time, the pierced fingertip emits blood outwards, then the blood collection finger and the limiting ring 21 are pinched by one hand, the outer tube body 1 is pulled outwards by the other hand, the inner space of the blood collection tube is increased due to the fact that the outer tube body 1 is pulled outwards, the pressure in the inner part is reduced, the outflow speed of the fingertip blood is facilitated, the finger is extruded by one hand, the blood collection tube provides suction effect at the same time, the blood collection time is shortened, the difficulty of blood collection is reduced, and when blood collection is completed, the residual blood sample on the surface of the fingertip is scraped into the blood collection tube, and finally the blood sample is completely flowed into the outer tube 2 in a mode of pulling or "knocking" mode ", and finally the blood sample is completely flowed into the outer tube 1, the medical examination tube is pulled out of the outer tube 1, and the medical examination tube is placed into the outer tube, and the outer tube is placed in a medical examination case, and the medical examination case.

Example 2

Referring to fig. 5, as another preferred embodiment of the present utility model, there is a difference from embodiment 1 in that binding bands 6 are fixedly provided at both sides of the extension 51, and a hook and loop surface 61 and a thorn surface 62 are respectively provided on the corresponding surfaces of the two binding bands 6, and a blood collection tube can be temporarily fixed to a fingertip by the two binding bands 6, thereby facilitating blood collection of the fingertip.

The foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The blood sampling tube for clinical examination comprises an outer tube body (1), a middle sleeve (2) and an inner sleeve (5), and is characterized in that the inner sleeve (5) is nested in the middle sleeve (2), and the middle sleeve (2) is nested in the outer tube body (1);

a separation baffle (22) is arranged in the middle sleeve (2), and a blood taking needle (3) is vertically fixed in the middle of the separation baffle (22);

the separation baffle (22) is provided with a leak hole (23);

a spring (4) is arranged between the bottom of the inner sleeve (5) and the separation baffle (22);

the outer side of the middle sleeve (2) is fixedly provided with a limiting ring (21), and the pipe orifice of the outer pipe body (1) is positioned below the limiting ring (21).

2. A blood collection tube for clinical examination according to claim 1, wherein the mouth of the inner tube (5) is provided with an outwardly projecting extension (51).

3. A blood collection tube for clinical examination according to claim 2, wherein two sides of the extension (51) are fixedly provided with binding belts (6), and the surfaces corresponding to the two binding belts (6) are respectively provided with a rough surface (61) and a thorn surface (62) of a velcro.

4. The blood collection tube for clinical examination according to claim 1, wherein the inner diameter of the inner tube (5) is the same as the outer diameter of the middle tube (2), and the inner tube (5) and the middle tube (2) are hermetically connected.

5. The blood collection tube for clinical examination according to claim 1, wherein the outer diameter of the middle sleeve (2) is the same as the inner diameter of the outer tube body (1), and the middle sleeve (2) and the outer tube body (1) are connected in a sealed manner.

6. A clinical laboratory blood collection tube according to claim 1, wherein the spike of the lancet (3) is lower than the position of the orifice of the inner cannula (5), and the travel of the inner cannula (5) within the middle cannula (2) causes the spike of the lancet (3) to just expose the position of the orifice of the inner cannula (5).

7. A blood collection tube for clinical examination according to claim 1, wherein the leak (23) is funnel-shaped.