CN213494324U

CN213494324U - Inner sleeve type blood collection tube

Info

Publication number: CN213494324U
Application number: CN202022083693.9U
Authority: CN
Inventors: 李小妹; 劳少杏; 姚人业; 李梦君; 李昌业
Original assignee: Guangxi Maternal and Child Health Hospital
Current assignee: Guangxi Maternal and Child Health Hospital
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2021-06-22
Anticipated expiration: 2030-09-22

Abstract

The utility model relates to a medical treatment detects the apparatus field, specifically discloses an inner tube formula heparin tube, including outer tube, inner tube and stopcock, the inner tube is installed inside the outer tube, and sealed cooperation between the outer wall of inner tube and the inner wall of outer tube, under the effect of centrifugal force, the inner tube can move towards the bottom of outer tube, and the top of outer tube and inner tube is all uncovered and is set up, and stopcock detachable installs on the top of outer tube to can seal the opening on top, the bottom of outer tube is sealed, and the bottom of inner tube is provided with a plurality of filtration pores. The utility model discloses an inner sleeve formula heparin tube can separate serum and cellosilk at centrifugal in-process, need not the secondary centrifugation, has improved blood sample's separation detection efficiency.

Description

Inner sleeve type blood collection tube

Technical Field

The utility model relates to a medical treatment detects the apparatus field, especially relates to an inner sleeve formula heparin tube.

Background

The serum blood collection tube on the market at present mainly comprises a common drying tube, a separation rubber tube and the like, wherein the common drying tube is used for naturally coagulating blood and centrifuging after separating out serum, and the serum collection tube is easy to generate cellosilk in the centrifuged serum, needs secondary centrifugation, is complex to operate, prolongs the detection time and reduces the detection efficiency; the blood sampling tube is made of the separation gel to isolate serum and blood clots, so that better serum is obtained, but when the blood sampling needle sucks the serum, the separation gel is easy to suck, the sample sucking needle is blocked, and normal detection is affected. Therefore, the existing blood sampling tube structure needs to be improved so as to improve the separation and detection efficiency of the blood sample.

Disclosure of Invention

The utility model discloses aim at solving one of the above-mentioned technical problem at least, provide an interior shell type heparin tube, can separate serum and cellosilk at centrifugal in-process, need not the secondary centrifugation, improved the separation detection efficiency of blood sample.

In order to realize the purpose, the utility model discloses a technical scheme be: the utility model provides an inner tube formula heparin tube, includes outer tube, inner tube and stopcock, and the inner tube is installed inside the outer tube, and sealed cooperation between the outer wall of inner tube and the inner wall of outer tube, and under the effect of centrifugal force, the inner tube can be towards the bottom motion of outer tube, and the equal uncovered setting in top of outer tube and inner tube, stopcock detachable installs on the top of outer tube to can seal the opening on top, the bottom of outer tube is sealed, and the bottom of inner tube is provided with a plurality of filtration pores.

Preferably, the outer diameter of the inner tube is matched with the inner diameter of the outer tube, so that the outer wall of the inner tube is tightly attached to the inner wall of the outer tube.

Preferably, the bottom end of the inner tube and the bottom end of the outer tube are both flat-bottomed.

Preferably, the bottom end of the inner pipe is provided with a filter screen.

Preferably, the filter screen is provided with a plurality of filter holes, and the aperture of each filter hole is 1-3 mm.

Preferably, the inner tube and the outer tube are both made of a transparent rigid plastic.

Preferably, the pipe plug is a wooden plug or a rubber plug.

The beneficial effects are that: compared with the prior art, the utility model discloses an inner tube is through having installed in the outer tube to endotheca formula heparin tube, when carrying out blood sampling, the upper end at the outer tube is installed to the inner tube, blood can flow to the bottom of outer tube through the filtration pore of inner tube bottom, when carrying out centrifugal operation to blood, under the effect of centrifugal force, the inner tube can be along the inner wall of outer tube to remove towards the bottom of outer tube, and at the in-process that removes, the serum of isolating can flow to the inner tube in through the mesh, and cellosilk and clot remain in the bottom of outer tube because of can not passing through the filtration pore, thereby can separate serum and cellosilk at centrifugal in-process, need not the secondary centrifugation, separation detection efficiency has been improved.

Drawings

The following detailed description of embodiments of the invention is provided in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic structural view of one embodiment of an internal blood collection tube of the present invention;

fig. 2 is a schematic structural view of another embodiment of the internal blood collection tube of the present invention;

FIG. 3 is a schematic view of the nested blood collection tube of FIG. 2 during centrifugation;

fig. 4 is a schematic structural view of the inner tube of fig. 1.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or there can be intervening components, and when a component is referred to as being "disposed in the middle," it is not just disposed in the middle, so long as it is not disposed at both ends, but rather is within the scope of the middle. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 4, an inner-sheath blood collection tube comprises an outer tube 1, an inner tube 2 and a plug 3, wherein the length of the inner tube 2 is smaller than that of the outer tube 1, the inner tube 2 is installed inside the outer tube 1, and the outer wall of the inner tube 2 is in sealing fit with the inner wall of the outer tube 1, so that when the inner tube 2 moves towards the bottom end of the outer tube 1, a blood sample does not flow into the inner tube 2 from the gap between the inner tube 2 and the outer tube 1, meanwhile, a certain friction force exists between the inner tube 2 and the outer tube 1, under the action of the friction force, the inner tube 2 can be fixed at the upper end of the outer tube 1, when the blood is centrifugally operated, the inner tube 2 can move towards the bottom end of the outer tube 1, the cylindrical outer tube 1 and the inner tube 2 are both open at the top ends, the bottom ends are both flat-bottomed, the, stopcock 3 can be cork or plug to can cooperate with the top end opening of outer tube 1, seal the opening on top completely, it is preferred, inner tube 2 and outer tube 1 are made by transparent rigid plastic, so that observe the blood sample, improved the structural strength of inner tube 2 and outer tube 1 simultaneously, the bottom of outer tube 1 is sealed, and the bottom of inner tube 2 is provided with a plurality of filtration pores 4.

As shown in fig. 1 and 2, when blood is collected, the inner tube 2 is fixedly installed at the upper end of the outer tube 1, blood can completely flow to the bottom end of the outer tube 1 through the filtering holes 4 at the bottom of the inner tube 2, after standing for a certain time, the blood is completely coagulated, and then the blood is centrifuged, as shown in fig. 3, under the action of centrifugal force, the inner tube 2 can move towards the bottom end of the outer tube 1 along the inner wall of the outer tube 1, and in the moving process, separated serum can flow into the inner tube 2 through the meshes, and cellosilk and clot can not remain at the bottom end of the outer tube 1 through the filtering holes 4, so that the serum and cellosilk can be separated in the centrifuging process, secondary centrifugation is not needed, and the separation detection efficiency is improved.

In one preferred embodiment, as shown in fig. 1, the outer diameter of the inner tube 2 may be matched with the inner diameter of the outer tube 1, so that the outer wall of the inner tube 2 is tightly attached to the inner wall of the outer tube 1, thereby the outer wall of the inner tube 2 is in sealing fit with the inner wall of the outer tube 1, and the inner tube 2 can slide relative to the outer tube 1 under the action of centrifugal force.

In another preferred embodiment, as shown in fig. 2 to 3, a sealing ring 5 may be sleeved on the outer wall of the inner tube 2, and the sealing ring 5 is in friction fit with the inner wall of the outer tube 1, so that the outer wall of the inner tube 2 is in sealing fit with the inner wall of the outer tube 1 through the sealing ring 5.

Specifically, can encircle on the outer wall of inner tube 2 and be provided with mounting groove 6, sealing washer 5 suit is on mounting groove 6 to improve the stability of sealing washer 5 installation, and in order to improve the leakproofness, can set up a plurality of sealing washers 5 on the outer wall of inner tube 2.

In another preferred embodiment, the bottom end of the inner tube 2 may be provided with a filter screen 7, the filter screen 7 is provided with the filter holes 4, specifically, the diameter of the filter holes 4 is 1-3mm, preferably 2mm, the filter screen 7 may be fixed to the bottom end of the inner tube 2 by adhering or integrally injection molding with the inner tube 2, or a filter tip may be embedded in the bottom end of the inner tube 2, the filter screen 7 is fixed to the filter tip, and the filter holes 4 on the filter screen 7 can filter the separated serum.

The above embodiments are only used for illustrating the technical solutions of the present invention and are not limited thereto, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the scope of the technical solutions of the present invention.

Claims

1. The utility model provides an inner tube formula heparin tube, a serial communication port, including outer tube (1), inner tube (2) and stopcock (3), install inside outer tube (1) inner tube (2), and sealed cooperation between the outer wall of inner tube (2) and the inner wall of outer tube (1), under the effect of centrifugal force, inner tube (2) can move towards the bottom of outer tube (1), the equal uncovered setting in top of outer tube (1) and inner tube (2), stopcock (3) detachable is installed on the top of outer tube (1), and can seal the opening on top, the bottom of outer tube (1) is sealed, the bottom of inner tube (2) is provided with a plurality of filtration pores (4).

2. An endotheca blood collection tube according to claim 1, wherein the outer diameter of the inner tube (2) matches the inner diameter of the outer tube (1) so that the outer wall of the inner tube (2) is tightly attached to the inner wall of the outer tube (1).

3. The endotheca blood collection tube according to claim 1, wherein the bottom end of the inner tube (2) and the bottom end of the outer tube (1) are flat.

4. An invaginated blood collection tube according to claim 1, characterized in that the bottom end of the inner tube (2) is provided with a filter screen (7).

5. The inner-sheath blood collection tube according to claim 4, wherein the filter screen (7) is provided with a plurality of filter holes (4), and the diameter of each filter hole (4) is 1-3 mm.

6. An invaginated blood collection tube according to claim 1, characterized in that the inner tube (2) and the outer tube (1) are both made of transparent rigid plastic.

7. The endotheca blood collection tube according to claim 1, wherein the tube plug (3) is a cork or rubber plug.