CN213155900U

CN213155900U - Improved PE cap for vacuum blood collection tube

Info

Publication number: CN213155900U
Application number: CN202020215582.6U
Authority: CN
Inventors: 缪从德; 刘涛; 刘健
Original assignee: Liuyang Chengde Plastics Co ltd
Current assignee: Liuyang Chengde Plastics Co ltd
Priority date: 2020-02-23
Filing date: 2020-02-23
Publication date: 2021-05-11
Anticipated expiration: 2030-02-23

Abstract

The utility model discloses a medical instrument technical field's a PE block for modified vacuum blood sampling pipe, include: a cap cylinder; the block top surface, the block top surface sets up the interior front end of surveying of block cylinder, the front surface of block top surface with the front surface parallel and level of block cylinder, the block cylinder includes: a cap cylinder body; a plurality of vertical retort brace, it is a plurality of the vertical retort brace evenly sets up on the inner chamber lateral wall of block cylinder body, it is a plurality of the vertical retort brace one-to-one, the block top surface includes: a cap top surface body; the four connecting blocks are arranged on the inner side of the cap top surface body in a cross manner; the fixed ring, the fixed ring sets up four the interior survey of connecting block, the utility model discloses a common structure of fixed ring and four connecting blocks is with the butyl rubber stopper suppression in the PE block, prevents because the top is opened, leads to the butyl rubber stopper not hard up or drop.

Description

Improved PE cap for vacuum blood collection tube

Technical Field

The utility model relates to the technical field of medical equipment, specifically be a PE block for modified vacuum blood collection tube.

Background

Medical instruments refer to instruments, devices, appliances, in-vitro diagnostic reagents and calibrators, materials and other similar or related items used directly or indirectly on the human body, including the required computer software. The effects are obtained mainly by physical means, not by pharmacological, immunological or metabolic means, or they are involved but only as an aid. For the purpose of diagnosis, prevention, monitoring, treatment, or amelioration of a disease; diagnosis, monitoring, treatment, mitigation, or functional compensation of injury; examination, replacement, regulation or support of a physiological structure or physiological process; support or maintenance of life; controlling pregnancy; by examining a sample from a human body, information is provided for medical or diagnostic purposes.

The vacuum blood collection tube is a disposable negative pressure vacuum glass tube capable of realizing quantitative blood collection and needs to be matched with a venous blood collection needle for use. The principle of the vacuum blood collection tube is that a blood collection tube test tube with a head cover is pre-pumped into different vacuum degrees, venous blood samples are automatically and quantitatively collected by utilizing the negative pressure of the blood collection tube test tube, and one end of a blood collection needle penetrates into a vein of a human body and then the other end of the blood collection needle is inserted into a rubber plug of the vacuum blood collection tube. Human venous blood is inside the vacuum test tube, under the effect of negative pressure, through blood taking needle suction blood specimen container, under a venipuncture, can realize that multitube gathers and does not take place to leak. The volume of the inner cavity connected with the blood taking needle is small, the influence on the blood taking volume can be ignored, but the probability of the occurrence of reverse flow is relatively small, if the volume of the inner cavity is large, a part of vacuum degree of the blood taking tube can be consumed, and therefore the collection amount of the blood taking tube is reduced.

Disposable venous blood collection container is heparin tube promptly, medical instrument as clinical examination blood collection has been widely used, the sealed of heparin tube comprises butyl rubber stopper PE block, PE block and butyl rubber stopper are compound together, test tube after the blood sampling is clinical need carry out the centrifugation and takes off the PE block and is carrying out full-automatic biochemical analyzer detection, heparin tube on the existing market, there is butyl rubber stopper and test tube cohesion and is greater than PE block and the cohesion of stinging the stopper, make the PE block take off the back, the plug is still on the test tube, thereby can make blood spill when getting the butyl rubber stopper again, increase medical personnel and blood contact's possibility, medical personnel avoid contacting blood, blood sampling again usually, cause the doctor to suffer from the contradiction.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a PE block for modified vacuum blood sampling pipe, with the blood sampling pipe on the existing market who proposes in solving above-mentioned background, there is butyl plug and the cohesion of test tube to be greater than the cohesion of PE block and plug, make the PE block take off the back, the plug is still on the test tube, thereby can make blood spill when getting the butyl plug again, increase medical personnel and blood contact's possibility, medical personnel avoid contacting blood, blood sampling need again usually, cause the problem of doctor-patient contradiction.

In order to achieve the above object, the utility model provides a following technical scheme: an improved PE cap for a vacuum blood collection tube, comprising:

a cap cylinder;

the nut cap top surface is arranged at the inner front end of the nut cap cylinder, and the front surface of the nut cap top surface is flush with the front surface of the nut cap cylinder.

Preferably, the cap cylinder includes:

a cap cylinder body;

the vertical bar supporting ribs are uniformly arranged on the side wall of the inner cavity of the cap cylinder body and are in one-to-one symmetry.

Preferably, the number of the vertical bar supporting ribs is 2-50.

Preferably, the width dimension of the vertical bar support rib is 0.75-0.78mm, and the distance between two symmetrical vertical bar support ribs is 12.4-12.55 mm.

Preferably, the cap top surface includes:

a cap top surface body;

the four connecting blocks are arranged on the inner side of the cap top surface body in a cross manner;

the fixed rings are arranged at four inner sides of the connecting blocks.

Preferably, the length of the connecting block at one end far away from the fixed ring is 2.3mm, and the length of the connecting block at one end connected with the fixed ring is 1.7 mm.

Preferably, the diameter of the inner ring of the fixed ring is 7mm, and the diameter of the outer ring of the fixed ring is 9.5 mm.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model presses the butyl rubber plug in the PE cap through the common structure of the fixed ring and the four connecting blocks, thereby preventing the butyl rubber plug from loosening or falling off due to the open top, the vertical bar brace and the cap cylinder body are formed by integrated injection molding, the vertical bar brace can form a right angle composition structure, the action area of the butyl rubber plug can be increased, the PE cap can be pulled out together with the butyl rubber plug when being pulled out, the contact area of the brace and the test tube wall can be increased, the vertical state of the test tube can be kept more easily, the pulling force is increased, and a certain distance is arranged between the adjacent vertical bar braces, the shape of the whole PE cap can be kept from deforming, the arrangement of the vertical bar brace disperses the expansion force of the over-hard matching of the test tube and the PE cap, the PE cap is prevented from being broken, the butyl rubber plug is pressed in the PE cap through the common structure of the fixed ring and the connecting blocks, the problem that the butyl rubber plug is loosened or falls off due to the fact that the top is opened is prevented, the middle of the butyl rubber plug is leaked due to the aperture of 7mm of the fixing ring, the blood sampling needle is convenient to insert, and the problem that the top and the bottom of a PE (polyethylene) cap can be subjected to bidirectional demolding due to the fact that the fixing ring and the connecting block are jointly formed into the demolding hole is avoided, and forced demolding from one end due to the fact that the top baffle is arranged is avoided

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the cap cylinder structure of the present invention;

fig. 3 is a schematic diagram of the structure of the top surface of the cap of the present invention.

In the figure: 100 cap cylinders, 110 cap cylinder bodies, 120 vertical bar support ribs, 200 cap top surfaces, 210 cap top surface bodies, 220 connecting blocks and 230 fixing circular rings.

Detailed Description

The drawings in the embodiments of the present invention will be combined. The technical solutions in the embodiments of the present invention are clearly and completely described, 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.

The utility model provides an improved PE cap for vacuum blood sampling tube, which presses a butyl rubber plug in the PE cap through a common structure of a fixed ring and four connecting blocks, so as to prevent the butyl rubber plug from loosening or falling off due to the open top, and please refer to fig. 1, a cap cylinder 100 and a cap top surface 200;

referring to fig. 1-2, the cap cylinder 100 includes:

the cap cylinder body 110 is made of PE;

the vertical bar supporting ribs 120 are uniformly arranged on the side wall of the inner cavity of the cap cylinder body 110, the vertical bar supporting ribs 120 are symmetrical one by one, the number of the vertical bar supporting ribs 120 is 2-50, the width dimension of the vertical bar supporting ribs 120 is 0.75-0.78mm, the distance between two symmetrical vertical bar supporting ribs 120 is 12.4-12.55mm, the vertical bar supporting ribs 120 and the cap cylinder body 110 are formed by integrated injection molding, the vertical bar supporting ribs 120 can form a right-angle composition structure and can increase the action area with a butyl rubber plug, when a PE cap is pulled out, the PE cap can be ensured to be pulled out together with the butyl rubber plug, the contact area between the supporting ribs and the wall of a test tube can be increased, the vertical state of the test tube is easier to keep, the pulling force is increased, a certain distance is reserved between the adjacent vertical bar supporting ribs 120, the shape of the whole PE cap can be kept from deforming, the vertical bar supporting ribs 120 are arranged, the expansion force of the over-hard matching of the test tube and the PE cap is dispersed, so that the PE cap is prevented from being broken;

referring to fig. 1-3, a cap top surface 200 is disposed at the inner front end of the cap cylinder 100, the front surface of the cap top surface 200 is flush with the front surface of the cap cylinder 100, and the cap top surface 200 includes:

the cap top body 210 is made of PE;

the four connecting blocks 220 are arranged on the inner side of the cap top surface body 210 in a cross manner, the length of one end, away from the fixed ring 230, of each connecting block 220 is 2.3mm, the length of one end, connected with the fixed ring 230, of each connecting block 220 is 1.7mm, and the connecting blocks 220 and the cap top surface body 210 are integrally formed in an injection molding mode;

the fixed ring 230 is arranged on the inner side of the four connecting blocks 220, the inner ring diameter of the fixed ring 230 is 7mm, the outer ring diameter of the fixed ring 230 is 9.5mm, the fixed ring 230 and the connecting blocks 220 are integrally formed by injection molding, the butyl rubber plug is pressed in the PE cap through the common structure of the fixed ring 230 and the connecting blocks 220, the problem that the butyl rubber plug is loosened or falls off due to the fact that the top of the cap is opened is prevented, the middle of the butyl rubber plug is leaked due to the 7mm aperture of the fixed ring 230, insertion of a blood collection needle is facilitated, and due to the fact that the fixed ring 230 and the connecting blocks 220 jointly form the demolding holes, when the cap is subjected to injection molding, bidirectional demolding can be conducted from the top and the bottom of the PE cap, and the problem that forced demolding can only be conducted from one end due to.

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the disclosed embodiments of the present invention can be used in any combination with each other, and the description of such combinations is not exhaustive in the present specification only for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. An improved PE cap for a vacuum blood collection tube is characterized in that: the method comprises the following steps:

a cap cylinder (100), the cap cylinder (100) comprising:

a cap cylinder body (110);

the vertical bar supporting ribs (120) are uniformly arranged on the side wall of the inner cavity of the cap cylinder body (110), the vertical bar supporting ribs (120) are symmetrical one to one, the number of the vertical bar supporting ribs (120) is 2-50, the width size of each vertical bar supporting rib (120) is 0.75-0.78mm, and the distance between two symmetrical vertical bar supporting ribs (120) is 12.4-12.55 mm;

a cap top surface (200), the cap top surface (200) is disposed at the inner front end of the cap cylinder (100), the front surface of the cap top surface (200) is flush with the front surface of the cap cylinder (100).

2. The improved PE cap for evacuated blood collection tubes according to claim 1, wherein: the cap top surface (200) comprises:

a cap top surface body (210);

the four connecting blocks (220) are arranged on the inner side of the cap top surface body (210) in a cross manner;

the fixing rings (230) are arranged on the inner sides of the four connecting blocks (220).

3. An improved PE cap for a vacuum blood collection tube according to claim 2, wherein: the length of one end of the connecting block (220) far away from the fixed circular ring (230) is 2.3mm, and the length of one end connected with the fixed circular ring (230) is 1.7 mm.

4. An improved PE cap for a vacuum blood collection tube according to claim 2, wherein: the diameter of the inner ring of the fixed circular ring (230) is 7mm, and the diameter of the outer ring of the fixed circular ring (230) is 9.5 mm.