CN205924038U - Blood sampling tube - Google Patents

Abstract

The utility model discloses a blood sampling tube, locate including one end open -ended body and lid the pipe cap of body open end, the pipe cap include with first main part that the body shape is matchd, by second main part that first main part extends with be fixed in the ring packing arm of second main part, the diameter of first main part is greater than the external diameter of body, the diameter of second main part is less than the internal diameter of body, sealed arm by the second main part to the pipe wall bottom direction of body is extended. Compared with the prior art, the utility model discloses a blood sampling tube simple structure, vacuum seal is effectual, and it is excellent that the effect is guaranteed the quality to the blood specimen, and difficult smooth among the blood collection operation, and the practicality is good.

Description

Heparin tube

Technical field

The utility model is related to field of medical devices, more particularly, to a kind of heparin tube.

Background technology

With social development and progress, the medical level of people improves constantly, and various diseases are defeated by the mankind in succession, and During various disease treatments, blood sampling chemical examination is a conventional measure.

The blood collection procedure of correlation technique is used mostly body, in order that blood sample is not revealed after acquisition, is not contaminated, base This method is with plug, blood sampling spout to be sealed.

In correlation technique, the plug of the heparin tube being widely adopted by mainly filling in face and plunger section forms, plunger and blood sampling The blocking of the pipe mouth of pipe connects, and plug face needs to be punctured injection in blood sampling, and the plug of this kind of heparin tube is had plunger and is connected with body Sealing is poor, leads to the blood sample holding time short, or even causes the result of laboratory test to described blood sample inaccurate, pipe surface of simultaneously taking a blood sample Smooth, easily decline in blood sampling operation, and be not easy preferably to control blood sampling volume.

Therefore, it is necessary to provide a kind of new heparin tube to solve above-mentioned technical problem.

Content of the invention

The purpose of this utility model is to overcome above-mentioned technical problem, provides a kind of structure simple, vacuum sealing effect is good, and It is difficult landing heparin tube in blood collection procedure.

The utility model provides a kind of heparin tube, including body and the pipe being covered on described body open ends of one end open Cap, described pipe cap includes the first main part mating with described tubular form, the second main body being extended by described first main part Portion and the ring packing arm being fixed on described second main part, the external diameter with diameter greater than described body of described first main part, The diameter of described second main part is less than the internal diameter of described body, and described seal arm is from described second main part to described body Tube wall bottom direction extends.

Preferably, described seal arm is three and interval setting, and three described seal arm are from described body bottom to described The opening extreme direction of body is in be incremented by with the corner dimension of described second main part respectively.

Preferably, described heparin tube also includes printing the scale line outside described body.

Preferably, described heparin tube also includes being attached at the transparent rubber layer outside described body.

Preferably, described body is made up of glass material, and described pipe cap is made up of plastic material.

Preferably, described heparin tube also includes covering the metal film of the described openend setting and being welded in described body.

Compared with prior art, the utility model provide heparin tube its pipe cap is set up seal arm so as to lid set after not Easily loosen leakage vacuum, improve the sealing effectiveness of described heparin tube；Scale line is additionally arranged on body, convenient control in blood collection procedure Blood sampling volume processed；And the sheathed rubber layer of body, not only anti-skidding when by described heparin tube can drop, described scale line is entered simultaneously Row protection, not easy to wear, increase the reliability of described heparin tube.

Brief description

Fig. 1 is the structural representation of the utility model heparin tube.

Fig. 2 is the pipe cap cross-sectional view of the utility model heparin tube.

Specific embodiment

Below in conjunction with drawings and embodiments, the utility model is described in further detail.

Refer to Fig. 1-2, the utility model provides a kind of heparin tube 10, include the body 1 of one end open, be covered on described in The pipe cap 2 of body 1 openend, the anticoagulant 3 being contained in described body 1 and preservatives stabilizers 4, print are located at described body 1 The scale line 5 in outside and the rubber layer 6 being attached at described body 1 outside.

Described pipe cap 2 includes extending with the first main part 21 of described body 1 form fit, by described first main part 21 The second main part 22 and the ring packing arm 23 being fixed on described second main part 22, the diameter of described first main part 21 is big In the external diameter of described body 1, the diameter of described second main part 22 is less than the internal diameter of described body 1, and described seal arm 23 is by institute State the second main part 22 to extend to the tube wall bottom direction of described body 1.Described first main part 21 is used for being arranged in described pipe The openend of body 1, described second main part 22 is used for inserting described body 1, the concrete elastic bendable of described seal arm 23, cooperation Described second main part 22 realizes the sealing of described body 1.

Specifically, in present embodiment, described seal arm 23 is three and interval setting, and three described seal arm 23 are by institute Stating body 1 bottom to the opening extreme direction of described body 1 is in be incremented by with the corner dimension of described second main part 22 respectively, i.e. Angle a<b<c.The setting of said structure can effectively keep the sealing effectiveness of described body 1.

Heparin tube of the present utility model is damage-free type heparin tube, after vacuumizing in described body 1, using described body Negative pressure in 1 realizes blood sampling, and arranges described anticoagulant 3 and described preservatives stabilizers 4, described anticoagulant in described body 1 Agent 3 and described preservatives stabilizers 4 are used as the stable reagent of blood sample.

During blood sampling, different chemical examinations are required, blood volume requirement is different, therefore, described body 1 outside print is provided with described mark Chi line 5, is apparent from blood sampling volume during convenient blood sampling.

For preventing described scale line 5 from wearing and tearing in transport transport process, described heparin tube of the present utility model 10 is described The rubber layer 6 being sticked transparent outside body 1, is on the one hand used for preventing described scale line 5 to be worn, and is on the other hand used for hand-held Anti-skidding during described heparin tube 10 drop.

The described body 1 of heparin tube 10 of the present utility model is made up of glass material, and described pipe cap 2 is plastic material system Become.

After described pipe blood vessel 10 vacuumizes, blood is adopted during the longer placement of rear time it is possible to meeting gas leakage, leads to blood sample to become Matter, therefore, heparin tube 10 of the present utility model sets and welds layer of metal film 7 in the described open end cap of described body 1, effectively Prevent gas leakage so that the sealing of described heparin tube is more excellent.

Described blood-taking device 10 directly extracts whole blood, can be used for the collection of cell-free plasma DNA, storage-stable and transport. Detection of nucleic acids in blood, including in blood plasma Cell-free DNA detection and analyze, in medical diagnosis on disease be one emerging and reliable Field.Although only having a small amount of Cell-free DNA, the increasing of the cell-free DNA level in blood circulation in the blood plasma of healthy human body Subtract relevant with many clinical diseases.Experiment shows, blood-taking device 10 of the present utility model is a kind of Noninvasive, rapid sensitive Blood sampling diagnostic tool；Can be applicable to molecular diagnosis and the detection of acute disease, and the pre-natal diagnosis of fetus genetic disease.

During the analysis of Cell-free DNA, the process of sample, transport and process are easily contaminted, and lead to there is core blood Cell disintegration, discharges cell genomic dna further.Meanwhile, the Cell-free DNA degraded producing because of nuclease also can carry Carry out series of problems.And the described preservatives stabilizers 4 that blood-taking device 10 of the present utility model includes can stablize nucleated blood cell, prevent Only release cell genomic dna, the nuclease-mediated degraded of suppression Cell-free DNA, contribute to the monolithic stability of Cell-free DNA.

Described blood-taking device 10, in protection cell surface antigen, while maintaining cellular morphology, strengthens Cell-free DNA Extract, detect and analyze.In described blood-taking device 10, the blood sample sample of collection, can stably preserve 14 days at 6-37 DEG C, convenient The collection of sample, transport and storage.

Compared with prior art, the utility model provide heparin tube its pipe cap is set up seal arm and metal film so as to Lid is difficult after setting to loosen leakage vacuum, improves the sealing effectiveness of described heparin tube；Scale line is additionally arranged on body, conveniently in blood sampling During control blood sampling volume；And the sheathed rubber layer of body, not only can anti-skidding when by described heparin tube drop, simultaneously to described Scale line is protected, not easy to wear, increases the reliability of described heparin tube.

The foregoing is only embodiment of the present utility model, not thereby limit the scope of the claims of the present utility model, every The equivalent structure made using the utility model specification and accompanying drawing content or equivalent flow conversion, or be directly or indirectly used in Other related technical fields, are all included in the same manner in scope of patent protection of the present utility model.

Claims (6)

1. a kind of heparin tube, including one end open body and be covered on described body open ends pipe cap it is characterised in that：Institute State pipe cap to include the first main part mating with described tubular form, the second main part being extended by described first main part and consolidate Due to the ring packing arm of described second main part, the external diameter with diameter greater than described body of described first main part, described The diameter of two main parts is less than the internal diameter of described body, and described seal arm is from described second main part to the tube wall bottom of described body Extreme direction extends.

2. heparin tube according to claim 1 it is characterised in that：Described seal arm is three and interval setting, three institutes Stating seal arm from described body bottom to the opening extreme direction of described body with the corner dimension of described second main part is in respectively It is incremented by.

3. heparin tube according to claim 1 it is characterised in that：Described heparin tube also includes print outside described body Scale line.

4. heparin tube according to claim 3 it is characterised in that：Described heparin tube also includes being attached at outside described body Transparent rubber layer.

5. heparin tube according to claim 1 it is characterised in that：Described body is made up of glass material, and described pipe cap is Plastic material is made.

6. heparin tube according to claim 1 it is characterised in that：Described heparin tube also includes lid and sets and be welded in described pipe The metal film of the described openend of body.