CN212465993U

CN212465993U - Children's trace heparin tube that is fit for capillary blood sampling method

Info

Publication number: CN212465993U
Application number: CN202021341121.XU
Authority: CN
Inventors: 施慧勇; 季岩福
Original assignee: ZHEJIANG GONGDONG MEDICAL TECHNOLOGY CO LTD
Current assignee: ZHEJIANG GONGDONG MEDICAL TECHNOLOGY CO LTD
Priority date: 2020-07-09
Filing date: 2020-07-09
Publication date: 2021-02-05
Anticipated expiration: 2030-07-09

Abstract

The invention adopts the technical scheme that the children micro blood collection tube suitable for a capillary blood collection method comprises a tube body, a tube cap and a rubber plug, wherein the tube cap covers the tube body and is in interference fit, extrusion and sealing at the contact position of the tube cap and the tube body, the middle part of the tube cap is provided with a vertically through rubber plug mounting hole, the rubber plug is mounted in the rubber plug mounting hole, a clamping mechanism for clamping and positioning the rubber plug and the rubber plug mounting hole is arranged between the rubber plug and the rubber plug mounting hole, and the rubber plug is provided with a notch penetrating through the upper surface and the lower surface. The blood sampling device is simple in structure and good in blood sampling effect, a pipe cap does not need to be opened during blood sampling and later detection, and the risk of bringing in pollutants due to the operation of opening the pipe cap can be avoided.

Description

Children's trace heparin tube that is fit for capillary blood sampling method

Technical Field

The invention relates to the field of medical instruments, in particular to a micro blood collection tube for children, which is suitable for a capillary blood collection method.

Background

Recently, with the development of medical technology, techniques for diagnosing various diseases by blood test have been developed, and thus blood test is generally required in diagnosing various diseases. In the conventional blood collection of infant blood, venous blood is difficult to collect for blood cytological examination due to the particularity of blood vessels and blood cells, and the negative pressure of a vacuum tube easily causes rupture of the blood cells of the infant, so that the examination result is distorted. Therefore, many medical personnel adopt the mode that the finger tip is punctured to bleed, extrude the fingertip to directly scrape baby's fingertip with the heparin tube mouth of pipe and take a blood sample, and this kind of blood sampling mode also can destroy blood cell, influences the testing result.

Therefore, at present, when a child is subjected to blood sampling, a capillary blood sampling mode is usually adopted, and the blood sampling by the capillary blood sampling mainly comprises earlobe blood sampling and fingertip blood sampling, wherein when the capillary blood sampling of an infant is carried out, the inner side of the fingertip of a left middle finger or a ring finger of the infant is generally massaged firstly, so that local tissues are subjected to natural congestion, and then a 75% ethanol cotton ball is used for wiping the skin of a blood sampling part for drying; then the medical care personnel fix the blood sampling part of the infant with the left thumb and the forefinger to tighten the skin and subcutaneous tissues, the medical care personnel hold the disposable blood sampling disinfection needle by the right hand to rapidly insert from the inside of the abdomen of the fingertip with the depth of 2-3mm, and then the needle is immediately taken out; after the blood naturally flows out, the first drop of blood is wiped off by a sterile dry cotton ball, and when the blood naturally flows out, the blood is sucked by a disposable micro-suction tube and guided into a blood collecting tube of a child, so that the blood collecting process of the child is completed.

The applicant has improved a children blood collection tube, such as a patent named as an automatic labeling and detecting system matched with a children micro blood collection tube, with application number of 2017200846828. However, when the blood collection tube is used for subsequent machine-on detection, the top cover needs to be opened, the risk that the detection result is influenced by bringing in pollutants exists in the process of opening the top cover, the tube cover also needs to be opened in the blood collection process, and the risk that the detection result is influenced by entering the pollutants also exists.

Disclosure of Invention

In view of the above problems, the present invention aims to provide a micro blood collection tube for children suitable for capillary blood collection method, which has a simple structure and a good blood collection effect, and can avoid the risk of bringing in pollutants due to the operation of opening the tube cap without opening the tube cap during blood collection and later detection.

The invention adopts the technical scheme that the children micro blood collection tube suitable for a capillary blood collection method comprises a tube body, a tube cap and a rubber plug, wherein the tube cap covers the tube body and is in interference fit, extrusion and sealing at the contact position of the tube cap and the tube body, the middle part of the tube cap is provided with a vertically through rubber plug mounting hole, the rubber plug is mounted in the rubber plug mounting hole, a clamping mechanism for clamping and positioning the rubber plug and the rubber plug mounting hole is arranged between the rubber plug and the rubber plug mounting hole, and the rubber plug is provided with a notch penetrating through the upper surface and the lower surface.

Preferably, the upper surface of the middle part of the pipe cap extends downwards to form a columnar limiting part, an annular accommodating cavity for inserting the pipe orifice of the pipe body is formed between the columnar limiting part and the side wall of the pipe cap, and the width of the annular accommodating cavity is reduced from bottom to top.

Preferably, the clamping mechanism comprises a columnar limiting part, an annular rib and an annular groove, wherein the annular rib is located at the upper end of the inner side surface of the columnar limiting part and protrudes inwards, the annular groove is located on the outer surface of the rubber plug and correspondingly arranged, and when the rubber plug is installed in place, the annular rib is clamped in the annular groove to achieve clamping and positioning.

Preferably, the top of the pipe cap is provided with a rubber plug mounting step, the top of the columnar limiting part starts to extend downwards from the inner side of the rubber plug mounting step, and the columnar limiting part gradually inclines inwards when extending downwards.

Preferably, the top of the rubber plug is arranged on a rubber plug mounting step, the lower part of the rubber plug inclines inwards, the inclination angle of the lower part of the rubber plug corresponds to that of the columnar limiting part, the bottom of the rubber plug is provided with a chamfer, and the length and width of the chamfer are 0.2-0.5 mm.

Preferably, a plurality of triangular guide blocks are uniformly arranged on the outer side wall of the pipe body and the inner side wall of the pipe cap along the circumferential direction, and when the pipe cap is sleeved on the pipe body, the triangular guide blocks on the pipe cap and the triangular guide blocks on the pipe body are staggered in sequence.

Preferably, a sealing interlayer is arranged in the middle of the tube body and divides the interior of the tube body into a blood sampling part and a labeling part.

Preferably, the lower end of the inner side wall of the pipe cap is provided with an annular pipe cap convex rib, the upper end of the outer side wall of the pipe body is provided with an annular pipe body convex rib, and when the pipe cap is sleeved on the pipe body, the annular pipe cap convex rib is located below the annular pipe body convex rib.

Preferably, the outer side wall of the upper end of the pipe body is provided with a pipe cap limiting ring which protrudes annularly, and when the pipe cap is sleeved on the pipe body in place, the bottom surface of the pipe cap is pressed on the pipe cap limiting ring.

Preferably, the shape of the incision is cross-shaped or m-shaped.

The invention has simple structure and good blood sampling effect by matching with a capillary blood sampling method, a tube cap does not need to be opened during blood sampling and later detection, a disposable micro suction tube is directly inserted into an incision of a rubber plug to enter the tube body during blood sampling, the other end of the disposable micro suction tube is directly placed on a finger bleeding wound of an infant, the blood sampling process can be directly realized, a sampling needle directly penetrates through the incision of the rubber plug to enter the blood in the tube body during detection, and the risk of bringing in pollutants due to the operation of opening the tube cap can be avoided.

Drawings

FIG. 1 is an exploded view of the present invention;

FIG. 2 is a top view of the present invention;

FIG. 3 is a full sectional view of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a full sectional view of the rubber plug of the present invention as it is being pulled out;

FIG. 6 is a partial enlarged view of FIG. 5 at B;

wherein: 1, a pipe body; 2-pipe cap; 3, a rubber plug; 4, installing a rubber plug; 5, a clamping mechanism; 6, cutting; 7-column spacing part; 8-an annular cavity; 9-annular ribs; 10-an annular groove; 11-step for installing rubber plug; 12-chamfering; 13-a triangular guide block; 14-sealing the interlayer; 15-a blood collection part; 16-labeling part; 17-annular pipe cap convex ribs; 18-annular tube body convex ribs; 19-pipe cap limiting ring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 to 6, the invention provides a micro blood collection tube for children suitable for a capillary blood collection method, which comprises a tube body 1, a tube cap 2 and a rubber plug 3, wherein the tube cap 2 covers the tube body 1 and is in interference fit, extrusion and sealing at a contact position of the tube body and the tube cap, a vertically through rubber plug mounting hole 4 is formed in the middle of the tube cap 2, the rubber plug 3 is mounted in the rubber plug mounting hole 4, a clamping mechanism 5 for clamping and positioning the rubber plug 3 and the rubber plug mounting hole 4 is arranged between the rubber plug 3 and the rubber plug mounting hole 4, and a notch 6 penetrating through the upper surface and the lower surface is formed in the rubber plug 3, wherein the notch 6 can be in a cross shape, a m shape or other common shapes into which a disposable micro suction tube can be inserted, and in addition, in a normal state, due to plastic deformation of a material (generally a butyl rubber material) of the.

On the basis of the above scheme, preferably, the upper surface of the middle part of the pipe cap 2 extends downwards to form a columnar limiting part 7, an annular cavity 8 for inserting the pipe orifice of the pipe body 1 is formed between the columnar limiting part 7 and the side wall of the pipe cap 2, the width of the annular cavity 8 is reduced from bottom to top, the clamping mechanism 5 comprises a columnar limiting part 7 and an annular rib 9 which is positioned at the upper end of the inner side surface of the columnar limiting part 7 and protrudes inwards, and be located the annular groove 10 that corresponds the setting on 3 surfaces of plug, when 3 installations of plug target in place the block location is realized in annular groove 10 to cyclic annular rib 9 block, and the effect that spacing portion 7 of column played is installation plug 3 usefulness on the one hand, and on the other hand is the interference extrusion seal between 2 and the body 1 of the tube cap of being convenient for simultaneously of the structural strength of reinforcing tube cap 2 department, specifically is the interference extrusion seal of spacing portion 7 lateral wall of column and 1 inside wall of body.

Preferably, 2 tops of pipe cap are provided with plug installation step 11, the inside downwardly extending that begins of plug installation step 11 is followed at the spacing portion 7 top of column, the gradual leanin when the spacing portion 7 downwardly extending of column, install on plug installation step 11 at 3 tops of plug, 3 lower parts leanin of plug and inclination correspond with the inclination of the spacing portion 7 of column, chamfer 12 has been seted up to 3 bottoms of plug, and the effect of a direction is played when setting up of chamfer 12 on the one hand easy to assemble plug 3, the length and width size of chamfer 12 is between 0.2-0.5mm, and chamfer 12 of this size range can avoid disposable micropipette to have blood to adhere to between 3 bottoms of plug and the spacing portion 7 of column after the blood sampling siphon.

Preferably, evenly be provided with a plurality of triangle guide blocks 13 on the body 1 lateral wall with on the 2 inside walls of pipe cap along the circumferencial direction, triangle guide block 13 on the pipe cap 2 and the triangle guide block 13 on the body 1 stagger in proper order when pipe cap 2 embolias on body 1, make inside blood spill when avoiding outwards pulling out pipe cap 2, the mode of direct selection rotation pipe cap 2, triangle guide block on the pipe cap 2 meets the triangle guide block on the body 1 and can be separated from by the direction that makes progress, do the process of rotating one side and outwards moving on one side, make the action that pipe cap 2 breaks away from body 1 very simple.

Preferably, the middle part of the tube body 1 is provided with a sealing interlayer 14, the sealing interlayer 14 separates the interior of the tube body 1 into a blood sampling part 15 and a labeling part 16, wherein the outer diameter of the tube body 1 can be selected to be 12.5mm, the height of the tube body is selected to be 75mm, the height of the blood sampling part 15 is equal to that of the labeling part 16, labeling is facilitated, and meanwhile, the bottom opening of the labeling part 16 is designed, so that the tube body 1 can be directly inserted on a base with a stick.

Preferably, 2 inside wall lower extremes of pipe cap are provided with annular pipe

cap protruding rib

17, 1 outside wall upper end of body is provided with annular body protruding rib 18, and when 2 covers of pipe cap were established on body 1, annular pipe cap protruding rib 17 was located annular body protruding rib 18 below, and when body 1 was gone into to pipe cap 2 lid, annular pipe cap protruding rib 17 can send the clear and crisp sound of a sound of "clicking" when crossing annular body protruding rib 18, and suggestion pipe cap 2 installs and targets in place.

Preferably, an annular convex pipe cap limiting ring 19 is arranged on the outer side wall of the upper end of the pipe body 1, and when the pipe cap 2 is sleeved on the pipe body 1 in place, the bottom of the pipe cap 2 is pressed on the pipe cap limiting ring 19.

When children's blood sampling, adopt capillary blood sampling method to carry out siphon blood sampling with disposable micropipette from the finger department of pricking, the disposable micropipette other end passes and lies in body 1 behind the incision 6 of plug 3, the hemostasis for the wound after the blood sampling finishes, abandon after extracting disposable micropipette, the test department is transferred to the heparin tube that will be equipped with blood, during the detection sample in inserting the blood directly after passing the incision 6 of plug 3 with the sample needle of instrument, whole process is simple swift, and need not open tube cap 2, avoid bringing the pollutant into because of opening 2 this operations of tube cap, also avoid the blood condition of splashing that the in-process of uncapping probably exists.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change or modification made to the above embodiments according to the technical principle of the present invention still falls within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a children's trace heparin tube that is fit for capillary blood sampling method, includes body (1), tube cap (2) and plug (3), tube cap (2) lid closes on body (1) and contact department interference fit extrusion seal, its characterized in that between them: penetrating plug mounting hole (4) about pipe cap (2) middle part is seted up, plug (3) are installed in plug mounting hole (4), be provided with between plug (3) and plug mounting hole (4) and make both block clamping mechanism (5) of block location, be provided with incision (6) of lining up the upper and lower surface on plug (3).

2. The micro blood collection tube for children according to claim 1, wherein: the utility model discloses a pipe cap (2) is characterized in that pipe cap (2) middle part upper surface downwardly extending forms column spacing portion (7), form between column spacing portion (7) and pipe cap (2) lateral wall and supply body (1) mouth of pipe male annular appearance chamber (8), the annular width that holds chamber (8) is the trend of reducing from bottom to top.

3. The micro blood collection tube for children according to claim 2, wherein: the clamping mechanism (5) comprises a columnar limiting part (7) and an annular rib (9) which is located at the upper end of the inner side surface of the columnar limiting part (7) and is inwards convex, and an annular groove (10) which is located on the outer surface of the rubber plug (3) and is correspondingly arranged, when the rubber plug (3) is installed in place, the annular rib (9) is clamped in the annular groove (10) to realize clamping and positioning.

4. The micro blood collection tube for children according to claim 3, wherein: the pipe cap (2) top is provided with plug installation step (11), the beginning downwardly extending of the inboard department from plug installation step (11) is located at the spacing portion of column (7) top, the spacing portion of column (7) inwards inclines gradually when downwardly extending.

5. The micro blood collection tube for children according to claim 4, wherein: the rubber plug (3) top is installed on rubber plug installation step (11), the inside slope of rubber plug (3) lower part and inclination correspond with the inclination of the spacing portion of column (7), chamfer (12) have been seted up to rubber plug (3) bottom, the length and width size of chamfer (12) is between 0.2-0.5 mm.

6. The micro blood collection tube for children according to claim 1, wherein: the pipe cap is characterized in that a plurality of triangular guide blocks (13) are uniformly arranged on the outer side wall of the pipe body (1) and the inner side wall of the pipe cap (2) along the circumferential direction, and when the pipe cap (2) is sleeved on the pipe body (1), the triangular guide blocks (13) on the pipe cap (2) and the triangular guide blocks (13) on the pipe body (1) are staggered in sequence.

7. The micro blood collection tube for children according to claim 1, wherein: the blood collection and labeling device is characterized in that a sealing interlayer (14) is arranged in the middle of the tube body (1), and the sealing interlayer (14) divides the interior of the tube body (1) into a blood collection part (15) and a labeling part (16).

8. The micro blood collection tube for children according to claim 1, wherein: the pipe cap (2) inside wall lower extreme is provided with annular pipe cap protruding muscle (17), body (1) lateral wall upper end is provided with annular body protruding muscle (18), when pipe cap (2) cover was established on body (1), annular pipe cap protruding muscle (17) are located annular body protruding muscle (18) below.

9. The micro blood collection tube for children according to claim 8, wherein: the pipe cap limiting ring (19) protruding in the annular shape is arranged on the outer side wall of the upper end of the pipe body (1), and when the pipe cap (2) is sleeved on the pipe body (1) in place, the bottom surface of the pipe cap (2) is pressed on the pipe cap limiting ring (19).

10. The micro blood collection tube for children according to claim 1, wherein: the shape of the incision (6) is cross-shaped or m-shaped.