CN210749230U

CN210749230U - Side-suction vertical type hemolysis-preventing vacuum blood collection tube

Info

Publication number: CN210749230U
Application number: CN201921562023.6U
Authority: CN
Inventors: 曾昭春; 邬晓东; 吴迪
Original assignee: Cancer Center of Guangzhou Medical University
Current assignee: Cancer Center of Guangzhou Medical University
Priority date: 2019-09-19
Filing date: 2019-09-19
Publication date: 2020-06-16
Anticipated expiration: 2029-09-19

Abstract

The utility model relates to the technical field of medical equipment, concretely relates to side-suction vertical type's anti-hemolysis vacuum blood collection tube. Including the body, the lateral wall that the body is close to the open end is provided with the blood sampling side pipe with the body intercommunication, and the open end of body seals via first gag, and the blood sampling side pipe seals via the second gag, and the body is close to the open end and is provided with first blotter with the inside wall that the blood sampling side pipe is relative. The utility model discloses a heparin tube novel structure, the blood sampling side tube of setting plays the blood sampling effect, make the blood of gathering get into from the lateral wall of heparin tube, and the first blotter of setting can play the effect of buffering to inspiratory blood because the negative pressure, and then make blood flow down along the pipe wall, prevent that blistering or hemolytic phenomenon from appearing in the blood sampling process, and the open end of body then plays the effect of getting the blood test entry end, the first gag and the second gag of setting then seal the open end of body and blood sampling side tube open end respectively, improve the leakproofness of heparin tube, the practicality is high.

Description

Side-suction vertical type hemolysis-preventing vacuum blood collection tube

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to side-suction vertical type's anti-hemolysis vacuum blood collection tube.

Background

The vacuum blood collection tube is used as a daily necessary medical instrument for collecting blood samples and performing examination and test, and is widely used in hospitals every day. How to ensure the accurate collection of the blood sample amount and ensure the proper preservation of the blood to reduce the occurrence of hemolysis has important significance for ensuring the accuracy of the test result and preventing the pain of the patient caused by blood re-sampling due to hemolysis. These two problems are always the unsolved problems in the prior art, and are the key points and difficulties to be solved in clinical medical examination.

And on the market at present, generally use hollow cylindric arc end vacuum test tube, at the blood sampling in-process, because the blood sampling entry is on the top, and need make the test tube slope place during the blood sampling to and the angle problem of piercing, blood is when receiving negative pressure suction, can not follow the pipe wall inflow tube end under the more circumstances, but directly jets into at the bottom of the convex tube, and produces the foam, thereby increase the hemolytic probability of blood sample, and cause the blood sample volume of gathering inaccurate.

After blood collection, blood needs to be mixed with additives such as anticoagulant in the blood collection tube, and the blood collection tube is turned upside down for 5-8 times. However, in the process of inversion, hemolysis is caused to some extent by the direct impact of blood hitting the bottom tube wall. When the blood sample is inspected, the cover of the blood sampling tube needs to be opened manually or by an automatic cap opening machine. Both of these two types of uncapping methods require that one end is held by the tube and the other end is opened upwards to open the lid. And because the outer wall of the blood sampling tube is generally smoother and is influenced by the vacuum in the blood sampling tube, a certain force is needed for uncovering, and the condition that blood is spilled due to slipping is easily caused.

Disclosure of Invention

In order to overcome the shortcoming and the not enough that exist among the prior art, the utility model aims to provide a side-draught vertical type's anti-hemolysis vacuum test tube, this vacuum test tube novel structure, the blood sampling side tube that sets up plays the blood sampling effect for the blood of gathering gets into from the lateral wall of heparin tube, and the first blotter of setting can be to because the negative pressure and the effect of inspiratory blood plays the buffering, and then makes blood flow down along the pipe wall, prevent that blistering or hemolysis from appearing in the blood sampling process, the practicality is high.

The purpose of the utility model is realized through the following technical scheme: the utility model provides a vertical type's hemolysis prevention vacuum test tube is inhaled to side, includes the body, the lateral wall that the body is close to the open end is provided with the blood sampling side pipe with the body intercommunication, the open end of body seals via first gag, the blood sampling side pipe seals via the second gag, the body is close to the open end and is provided with first blotter with the inside wall that the blood sampling side pipe is relative.

Further, the first plug cover comprises a first cover body and a first inner plug arranged on one side face of the first cover body, and the opening end of the pipe body is arranged in the first inner plug.

Furthermore, the second plug cover comprises a second cover body and a second inner plug arranged on one side surface of the second cover body, and the second inner plug is internally arranged at the opening end of the blood sampling side tube.

Furthermore, one side face, far away from the second inner plug, of the second cover body corresponds to the second inner plug and is provided with a groove for puncture of the blood taking needle.

Further, this vacuum test tube still includes first shell, first shell is including the cover shell of cover locating outside the first lid and the cover locate the first tube shell of body open end outer wall, first cover shell and first tube shell integrated into one piece.

Furthermore, a first annular convex strip used for limiting the first cover body is convexly arranged on the inner wall of the first cover shell, and a first external thread is arranged on the outer wall of the first cover shell; the inner wall of the first pipe shell is provided with a first internal thread, and the outer wall of the first pipe shell is provided with a second external thread.

Furthermore, the vacuum blood collection tube also comprises a second shell, the second shell comprises a second cover shell sleeved outside the second cover body and a second tube shell sleeved on the outer wall of the opening end of the blood collection side tube, and the second cover shell and the second tube shell are integrally formed; the second cover shell corresponds to the groove and is provided with a through hole for the blood taking needle to pass through.

Furthermore, a second annular convex strip used for limiting the second cover body is convexly arranged on the inner wall of the second cover shell, and a third external thread is arranged on the outer wall of the second cover shell; the inner wall of the second tube shell is provided with a second internal thread, and the outer wall of the second tube shell is provided with a fourth external thread.

Further, the diapire of body is the plane, be equipped with the second blotter in the diapire of body.

Furthermore, the lateral wall of body near the open end is provided with the scale mark.

The beneficial effects of the utility model reside in that: the utility model discloses a vertical type's hemolysis prevention vacuum test tube is inhaled to side novel structure, and the blood sampling side tube of setting plays the blood sampling effect for the blood of gathering gets into from the lateral wall of heparin tube, and the first blotter that sets up can play the effect of buffering to the inhaled blood because the negative pressure, and then makes blood flow down along the pipe wall, prevents to appear foaming or hemolysis in the blood sampling process, and the open end of body then plays the effect of getting blood test entry end, and the practicality is high.

Drawings

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

FIG. 2 is a partially exploded schematic view of the present invention;

fig. 3 is a schematic view of an assembled three-dimensional structure of the present invention;

FIG. 4 is a schematic view of the blood collection in the inverted upright state of the present invention;

fig. 5 is a cross-sectional view of the present invention.

The reference signs are: 1-tube body, 11-scale mark, 2-blood sampling side tube, 3-first stopper lid, 31-first lid, 32-first inner stopper, 4-second stopper lid, 41-second lid, 411-recess, 42-second inner stopper, 5-first buffer pad, 6-first shell, 61-first cover shell, 611-first annular convex strip, 612-first external thread, 62-first tube shell, 621-second external thread, 7-second shell, 71-second cover shell, 711-through hole, 712-second annular convex strip, 713-third external thread, 72-second tube shell, 721-fourth external thread, 8-second buffer pad.

Detailed Description

In order to facilitate the understanding of those skilled in the art, the present invention will be further described with reference to the following examples and accompanying fig. 1-5, which are not intended to limit the present invention.

Referring to fig. 1-5, a vertical type hemolysis prevention vacuum blood collection tube is inhaled to side, includes body 1, the lateral wall that body 1 is close to the open end is provided with the blood collection side pipe 2 with body 1 intercommunication, the open end of body 1 seals via first gag 3, blood collection side pipe 2 seals via second gag 4, body 1 is close to the open end and is provided with first blotter 5 with the inside wall that blood collection side pipe 2 is relative.

This embodiment side-suction upright type's anti-hemolysis vacuum test tube novel structure, the blood sampling side tube 2 that sets up plays the blood sampling effect, make the blood of gathering get into from the lateral wall of test tube, and the first blotter 5 that sets up can play the effect of buffering to inspiratory blood owing to the negative pressure, and then make blood flow down along the pipe wall, prevent that bubble or hemolysis from appearing in the blood sampling process, and the open end of body 1 then plays the effect of getting the blood test entry end, the first gag 3 and the second gag 4 of setting then seal the open end of body 1 and 2 open ends of blood sampling side tube respectively, improve the leakproofness of test tube, therefore, the practicability is high.

Further, the blood sampling side tube 2 and the tube body 1 are arranged in a mutually perpendicular state, and the blood sampling side tube 2 and the tube body 1 are both in a transparent tube shape.

Preferably, first blotter 5 is soft materials such as silica gel, is sheet structure such as square or circular, preferably square sheet, and the length of a side equals the internal diameter of body 1, be fixed in the inner wall of body 1 through modes such as glue, be the fixed setting of arc, or the accessible sets up the storage tank at the inner wall of body 1, be used for fixed first blotter 5, can provide cushioning effect for the blood that gets into through blood sampling lateral tube 2, avoid blood because the negative pressure of body 1 inhales and directly shoots at hard pipe wall, reduce splashing of blood in body 1, the bubble phenomenon of blood is restrained to a certain extent, and prevent hemolysis phenomenon.

In this embodiment, the first plug 3 includes a first cover 31 and a first inner plug 32 disposed on one side of the first cover 31, and the first inner plug 32 is disposed in the opening end of the tube 1.

In this embodiment, the first inner plug 32 is plugged into the open end of the tube body 1, so that the sealing performance of the tube body 1 can be ensured, and when blood needs to be tested by an instrument such as a blood cell analyzer, the first plug 3 is opened to take out a blood sample through the open end of the tube body 1. Preferably, the first inner plug 32 is a solid cylinder, and the diameter of the first inner plug 32 is the same as the inner diameter of the pipe body 1 and is tightly attached to the pipe wall of the pipe body 1; the first cover 31 is also a solid cylinder, the diameter of the first cover 31 is slightly larger than the outer diameter of the tube body 1, the thickness of the first cover 31 is smaller than the thickness of the first inner plug 32, so as to cover the tube body 1, and the portion of the first cover 31 protruding out of the outer diameter of the tube body 1 is limited in the space between the first annular convex strip 611 and the top of the first cover shell 61, so as to improve the clamping stability of the first cover shell 61 to the first cover 31, so that the first cover 31 is pulled out together when the first cover shell 61 is pulled out upwards, and the first plug 3 can be conveniently opened for blood sampling detection.

More preferably, the first cover 31 and the first inner plug 32 are integrally formed and are made of soft materials such as butyl rubber, when blood is collected, the blood collection tube is inverted, the first plug cover 3 serves as a bottom, and the soft materials can provide a soft bottom environment for blood, so that the impact force when the blood flows down along the tube wall is reduced; and when the blood is reversely and uniformly mixed, the soft material plays a role in buffering, the impact force generated during reverse oscillation is greatly relieved, a stable preservation environment is provided for the blood, the blood cells are prevented from being broken due to the impact force generated by the reverse oscillation, and the occurrence of hemolysis is avoided.

In this embodiment, the second plug cover 4 includes a second cover 41 and a second inner plug 42 disposed on one side surface of the second cover 41, and the second inner plug 42 is disposed in the open end of the blood collection side tube 2.

In this embodiment, a groove 411 for puncturing the lancet is formed on a side surface of the second cover 41 away from the second inner plug 42 corresponding to the second inner plug 42.

This embodiment is through stopping up second inner plug 42 to the open end of blood sampling side pipe 2, can ensure the leakproofness of blood sampling side pipe 2, and the recess 411 that sets up on second lid 41, similar pot body design, be arc sunken, as the position of piercing of blood taking needle, the blood taking needle of being convenient for passes second lid 41 and pierces through second inner plug 42 through this recess 411, receive the negative pressure in the body 1 and inhale blood to the body 1 in, realize the blood sampling through the lateral wall of blood sampling pipe, and make blood flow down along the pipe wall, prevent bubble or hemolytic phenomenon from appearing in the blood sampling process.

Furthermore, the second cover 41 and the second inner plug 42 are integrally formed and made of soft materials such as butyl rubber, and the puncture site of the needle head can be closed after the blood sampling needle is inserted and pulled out, so that blood is prevented from being polluted and the operator is prevented from being polluted by the blood. Preferably, the second inner plug 42 is a solid cylinder, the diameter of the second inner plug 42 is the same as the inner diameter of the blood sampling side tube 2, and the second inner plug is tightly attached to the tube wall of the blood sampling side tube 2; the second cover 41 is a cylinder, the diameter of the second cover 41 is slightly larger than the outer diameter of the blood sampling side tube 2, the thickness of the second cover 41 is smaller than the thickness of the second inner plug 42, the thickness of the second inner plug 42 is equal to the length of the blood sampling side tube 2, and the portion of the second cover 41 protruding out of the outer diameter of the blood sampling side tube 2 is limited in a second annular convex strip 712, which will be described later, so that the clamping stability of the second cover 71 to the second cover 41 is improved, and the second cover 71 plays a stable role in protecting the second plug 4, thereby preventing blood brought out when the blood sampling needle is pulled out from polluting an operator.

In this embodiment, the vacuum blood collection tube further includes a first housing 6, the first housing 6 includes a first cover 61 covering the first cover 31 and a first tube 62 covering the outer wall of the opening end of the tube body 1, and the first cover 61 and the first tube 62 are integrally formed.

In this embodiment, the inner wall of the first cover shell 61 is convexly provided with a first annular protruding strip 611 for limiting the first cover body 31, and the outer wall of the first cover shell 61 is provided with a first external thread 612; the inner wall of the first pipe shell 62 is provided with a first internal thread, and the outer wall of the first pipe shell 62 is provided with a second external thread 621.

The first shell 6 provided in this embodiment can protect the first cover 31 and the open end of the tube body 1, the first annular protruding strip 611 provided at the same time can limit and position the portion of the first cover 31 protruding from the outer diameter of the tube body 1, and the first cover 31 is clamped in the space between the first annular protruding strip 611 and the top of the first cover 61, so that the first cover 31 is jointly pulled out when the first cover 61 is pulled out by hand operation or machine operation, thereby facilitating the blood sampling detection by opening the first plug 3. In addition, the first internal thread arranged on the first pipe shell 62 can increase the friction force between the first pipe shell 62 and the outer wall of the pipe body 1, and ensure the stability of the first pipe shell 62; and set up first external screw thread 612 and second external screw thread 621 respectively at the outer wall of first lid shell 61 and the outer wall of first tube 62, can improve the antiskid nature of the outer wall of first lid shell 61 and the outer wall of first tube 62 to can cooperate with full-automatic uncapping machine, improve the steadiness of uncapping.

Preferably, the first cover case 61 and the first tube case 62 are made of hard materials such as PP and PE, which are firm and stable, are not easy to deform, and can effectively protect the first cover 31 and the open end of the tube body 1.

In this embodiment, the vacuum blood collection tube further includes a second housing 7, the second housing 7 includes a second cover 71 covering the second cover 41 and a second tube housing 72 covering the outer wall of the open end of the blood collection side tube 2, and the second cover 71 and the second tube housing 72 are integrally formed; the second cover shell 71 is opened with a through hole 711 through which a blood collection needle passes corresponding to the groove 411.

In this embodiment, the inner wall of the second cover shell 71 is convexly provided with a second annular convex strip 712 for limiting the second cover body 41, and the outer wall of the second cover shell 71 is provided with a third external thread 713; the inner wall of the second pipe shell 72 is provided with a second internal thread, and the outer wall of the second pipe shell 72 is provided with a fourth external thread 721.

The second housing 7 provided in this embodiment can protect the second cover 41 and the open end of the blood sampling side tube 2, the second annular protruding strip 712 provided in this embodiment can limit and position the portion of the second cover 41 protruding out of the outer diameter of the blood sampling side tube 2, the second cover 41 is clamped in the space between the second annular protruding strip 712 and the top of the first cover 61, so as to improve the stability of the second cover 71 clamping the second cover 41, so that the second cover 71 can stably protect the second plug 4, and prevent the blood taken out when the blood sampling needle is pulled out from polluting the operator. The through hole 711 is convenient for the blood collection needle to pass through, and then penetrates into the second cover 41 through the groove 411 of the second cover 41 and pierces through the second inner plug 42, so as to collect blood under the action of negative pressure in the tube 1.

In addition, the second internal thread arranged on the second tube shell 72 can increase the friction force between the second tube shell 72 and the outer wall of the blood sampling side tube 2, and ensure the stability of the second tube shell 72; and the third external thread 713 and the fourth external thread 721 are respectively arranged on the outer wall of the second cover shell 71 and the outer wall of the second pipe shell 72, so that the anti-skid performance of the outer wall of the second cover shell 71 and the outer wall of the second pipe shell 72 can be improved, and the cover opening stability can be improved by matching with a full-automatic cover opening machine.

Preferably, the second cover shell 71 and the second tube shell 72 are made of hard materials such as PP and PE, are firm and stable, are not easily deformed, and can effectively protect the second cover body 41 and the open end of the blood sampling side tube 2.

In this embodiment, the bottom wall of the tube body 1 is a plane, and a second cushion pad 8 is disposed in the bottom wall of the tube body 1.

The bottom wall of the tube body 1 of the embodiment adopts a planar design, so that the bottom of the tube body 1 is of a flat bottom structure, and compared with the existing blood sampling tube with the arc-shaped bottom, the bottom inner wall of the tube body 1 can be stressed more uniformly by blood, the problem that the blood is easily gathered at the bottom end of the arc-shaped bottom is avoided, and the occurrence of hemolysis is prevented to a certain extent; and through set up second blotter 8 at the bottom inner wall of body 1, can play the effect of buffering to blood, when taking a blood sample back to the heparin tube go on upside down shake even make blood and the anticoagulant in the body 1 intermix, second blotter 8 and first interior stopper 32 play the effect of buffering, reduce the emergence of the hemolysis that shock impact caused, and preferred, second blotter 8 is soft material such as silica gel, is sheet structure such as square or circular, preferably circular slice, and the diameter equals the internal diameter of body 1, is fixed in the diapire inner wall of body 1 through modes such as glue, or the accessible sets up the storage tank at the inner wall of body 1 diapire for fixed second blotter 8.

In this embodiment, the side wall of the tube body 1 near the open end is provided with scale marks 11; the blood sampling quantity can be indicated, when the blood sampling tube is inverted to take blood, the observation is convenient, the accuracy of the blood sampling quantity is ensured, and when the blood is taken for detection, the intuitive observation is also convenient for the blood quantity, and the accuracy is ensured.

The blood collection tube of this embodiment, when needs take a blood sample, invert the blood collection tube, the blood collection needle passes through-hole 711 of second lid casing 71, pierce through recess 411 of second lid 41, and pierce through second inner plug 42, reach blood sampling side pipe 2 inside, and utilize the negative pressure in the blood collection tube to inhale blood to the first blotter 5 that sets up on the body 1 lateral wall, blood process buffering, flow down along body 1 lateral wall, can prevent that blood from appearing the bubble phenomenon because of the impact force, and prevent that blood from directly impacting the bottom of blood collection tube and producing the hemolysis. In addition, the blood collection tube of this embodiment is for inverting when taking blood, and need resume just standing after the blood collection finishes and place, overturns the blood collection tube this moment, is accompanied by the process of once reversing the mixing, has then reduced subsequent reversal mixing number of times, save time, increase the efficiency of mixing. And again, the perpendicular design of blood sampling side tube 2 and body 1 itself, when needing artifical first shell 6 (or first gag 3) of opening or using automatic uncapping machine to open first shell 6 (or first gag 3), perpendicular design can provide the screens for operator's hand or automatic uncapping machine, improve the fastness of holding tightly to the heparin tube, prevent that traditional heparin tube from because the pipe wall is smooth and appear skidding when artifical uncapping or machine uncapping, spill phenomenons such as blood, and alleviate the shock that brings when uncapping to a certain extent, reduce the emergence of hemolysis, more conveniently cooperate artifical or machine to uncap. Therefore the heparin tube of this embodiment can improve the accuracy of blood sampling efficiency and blood volume, can make blood flow down along the pipe wall, prevents to take a blood sample in-process bubble phenomenon to reduce and reverse the oscillation of in-process such as mixing, uncapping, avoid the emergence of hemolysis, be favorable to the save of blood, the practicality is high.

The above-mentioned embodiment is the utility model discloses the implementation of preferred, in addition, the utility model discloses can also realize by other modes, not deviating from the utility model discloses any obvious replacement is all within the protection scope under the prerequisite of design.

Claims

1. The utility model provides a vertical type's hemolysis prevention vacuum test tube is inhaled to side which characterized in that: including body (1), body (1) is close to the lateral wall of open end and is provided with blood sampling side pipe (2) with body (1) intercommunication, the open end of body (1) seals via first gag (3), blood sampling side pipe (2) seal via second gag (4), body (1) is close to the open end and is provided with first blotter (5) with the inside wall that blood sampling side pipe (2) is relative.

2. The side-suction upright type anti-hemolytic vacuum blood collection tube according to claim 1, wherein: the first plug cover (3) comprises a first cover body (31) and a first inner plug (32) arranged on one side face of the first cover body (31), and the opening end of the pipe body (1) is arranged in the first inner plug (32).

3. The side-suction upright type anti-hemolytic vacuum blood collection tube according to claim 1, wherein: the second plug cover (4) comprises a second cover body (41) and a second inner plug (42) arranged on one side face of the second cover body (41), and the second inner plug (42) is internally arranged at the opening end of the blood sampling side tube (2).

4. The side-suction upright type anti-hemolytic vacuum blood collection tube according to claim 3, wherein: one side surface of the second cover body (41) far away from the second inner plug (42) corresponds to the second inner plug (42) and is provided with a groove (411) for puncture of a blood taking needle.

5. The side-suction upright type anti-hemolytic vacuum blood collection tube according to claim 2, wherein: the vacuum blood collection tube further comprises a first shell (6), wherein the first shell (6) comprises a first cover shell (61) sleeved outside the first cover body (31) and a first tube shell (62) sleeved on the outer wall of the opening end of the tube body (1), and the first cover shell (61) and the first tube shell (62) are integrally formed.

6. The side-suction upright type anti-hemolytic evacuated blood collection tube of claim 5, wherein: a first annular convex strip (611) used for limiting the first cover body (31) is convexly arranged on the inner wall of the first cover shell (61), and a first external thread (612) is arranged on the outer wall of the first cover shell (61); the inner wall of the first pipe shell (62) is provided with a first internal thread, and the outer wall of the first pipe shell (62) is provided with a second external thread (621).

7. The side-suction upright anti-hemolytic evacuated blood collection tube of claim 4, wherein: the vacuum blood collection tube further comprises a second shell (7), the second shell (7) comprises a second cover shell (71) sleeved outside the second cover body (41) and a second tube shell (72) sleeved on the outer wall of the opening end of the blood collection side tube (2), and the second cover shell (71) and the second tube shell (72) are integrally formed; the second cover shell (71) is provided with a through hole (711) corresponding to the groove (411) for the blood taking needle to pass through.

8. The side-suction upright anti-hemolytic evacuated blood collection tube of claim 7, wherein: a second annular convex strip (712) used for limiting the second cover body (41) is convexly arranged on the inner wall of the second cover shell (71), and a third external thread (713) is arranged on the outer wall of the second cover shell (71); the inner wall of the second pipe shell (72) is provided with a second internal thread, and the outer wall of the second pipe shell (72) is provided with a fourth external thread (721).

9. The side-suction upright type anti-hemolytic vacuum blood collection tube according to claim 1, wherein: the diapire of body (1) is the plane, be equipped with second blotter (8) in the diapire of body (1).

10. The side-suction upright type anti-hemolytic vacuum blood collection tube according to claim 1, wherein: the side wall of the pipe body (1) close to the opening end is provided with scale marks (11).