CN102940497A - Disposable blood sampling container - Google Patents
Disposable blood sampling container Download PDFInfo
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- CN102940497A CN102940497A CN2012104748845A CN201210474884A CN102940497A CN 102940497 A CN102940497 A CN 102940497A CN 2012104748845 A CN2012104748845 A CN 2012104748845A CN 201210474884 A CN201210474884 A CN 201210474884A CN 102940497 A CN102940497 A CN 102940497A
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- syringe
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- puncture needle
- blood sampling
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Abstract
The invention discloses a disposable blood sampling container. The disposable blood sampling container is applied to animal blood sample collecting and storing and simultaneously used for blood component separating. A puncture needle is used by matching with the disposable blood sampling container. The disposable blood sampling container comprises a cylindrical needle cylinder, an end portion, a piston and a push-pull rod, the end portion is arranged at the front end of the needle cylinder and used for being matched with the puncture needle, the piston is arranged in the needle cylinder and capable of axially moving along the needle cylinder, and the push-pull rod is fixed on the piston and used for pushing the piston to move. The tail end of the needle cylinder is in a conical structure, a hole which is matched with the push-pull rod is disposed along the axial direction of the conical structure, a prefabricated notch for breaking the push-pull rod is arranged on the push-pull rod, and an inner hole of the end portion which is arranged at the front end of the needle cylinder and used for being matched with the puncture needle is sealed by a rubber plug made of an elastoplastic material.
Description
Technical field
The present invention relates to a kind of blood sampling blood pack unit, is a kind of be applied to animal blood sample collection, storage exactly, and can be used for simultaneously a kind of disposable blood sampling blood pack unit of blood component separation and the puncture needle that matches and use with it.The present invention includes syringe, be arranged at the syringe front end the end that is used for matching with puncture needle, be arranged in the syringe can be along the piston of syringe axially-movable, and be fixed in the push-pull bar that is used for the pushing piston motion on the piston.
Background technology
In recent years, along with molecular biological fast development, the animal molecular diagnostic techniques is widely used in diagnosis and the molecular marker assisted selection breeding work of Animal diseases.The first step of carrying out the work of animal molecular diagnosis also is that most important work is exactly the collection of blood sample, also needs to carry out in addition the collection of blood sample when carrying out the generaI investigation of animal epidemic.Existing animal blood sample collecting work is mainly used common 10 ml centrifuge tubes, disposal vacuum blood taking tube and disposable blood sampling blood pack unit for animals.Prior art has the following disadvantages:
(1) use common 10 ml centrifuge tube blood sample collections, acquisition method needs people Baoding animal, and a people holds pin and a people collects blood sample.After key step is used No. 12 syringe needles (specification 1.2X3.8 NY529-2002) puncture animal Jugular vessel, collect the venous blood of the pressure ejection that relies on blood with common 10 ml centrifuge tubes, though cheap, but the effort of taking a lot of work, blood sample easily pollutes, and the blood sample that ejects very easily causes the propagation of the infection of epidemic disease, particularly zoonosis.
(2) the vacuum test tube samples of animal blood used of end user can have been avoided the deficiency of the common 10 ml centrifuge tube blood sample collections of aforementioned applications, but when using this class equipment to carry out blood specimen collection, even in the situation that the animal medical personnel operate is correct, because with height above sea level, atmospheric pressure, the blood taking needle internal diameter of sampling position and the taken a blood sample vein pressure of animal and the difference of blood viscosity, blood sampling volume is had larger change generally difficult control.This class vacuum test tube adopts glass to make more on the other hand, and its storage condition temperature is 4-25 ℃.If storage temperature is at 0 ℃ or be lower than 0 ℃, just may cause breaking of blood taking tube.Also exist the danger of blood back flow when adopting in addition this class equipment to take a blood sample operation.
(3) although disposable plastic blood pack unit for animals can solve the deficiency that glass evacuated blood taking tube blood sampling volume is subject to the impact of sampling site height above sea level, atmospheric pressure, and can low temperature storage, but the danger of blood back flow when existing blood sampling.
(4) use the various instruments for blood collection of prior art also need transfer to after blood specimen collection in the test tube, to carry out testing, the workload that this has namely increased the testing staff has reduced work efficiency, also easily produces the contaminated problem of blood sample simultaneously.
Summary of the invention
Of the present inventionly provide that a kind of to overcome existing all kinds of hemostixes not enough, blood sampling, storage blood are once finished, and can be for the disposable blood sampling blood pack unit of the extraction of the separation of the blood serum blood plasma in downstream or genomic DNA, RNA.
Disposable blood sampling blood pack unit of the present invention, include columniform syringe, be arranged at the syringe front end the end that is used for matching with puncture needle, be arranged in the syringe can be along the piston of syringe axially-movable, and be fixed in the push-pull bar that is used for the pushing piston motion on the piston.The tail end of syringe of the present invention is conical structure, axially be provided with the hole that cooperates with push-pull bar along conical structure, and on push-pull bar, with a ready-made breach for push-pull bar is fractureed, be arranged at sealing for the plug that consists of with elastic-plastic material in the endoporus of the end of matching with puncture needle of syringe front end.
The end that is used for matching with puncture needle of the syringe front end of disposable blood sampling blood pack unit of the present invention is dismountable syringe medicated cap, uses thread connection between the front end of described dismountable syringe medicated cap and syringe.
Disposable blood sampling blood pack unit of the present invention is that 3/1 to 2/5 place of syringe total length is provided with a piston limit block at the syringe inwall and apart from the syringe front end.When adopting this structure, when the present invention when state lower piston front end to be used is in piston limit block place, piston nose and syringe front end be used for end that puncture needle matches between leave 3/1 to 2/5 the space that accounts for the syringe gross space.
In the disposable blood sampling blood pack unit of the present invention, conical structure inner at syringe and that be positioned at tail end is provided with the spacing catch in piston rear portion with the cylindrical barrel place of combining, and is provided with on the spacing catch in piston rear portion and push-pull bar hole movingly.
The outer wall of the columniform syringe of disposable blood sampling blood pack unit of the present invention is provided with coarse part.
Include piercing needle, the fixedly fixed part that matches with the end that is used for matching with puncture needle of syringe front end of piercing needle and being used for, and the tail end of the fixed part of puncture needle with puncture needle that disposable blood sampling blood pack unit of the present invention is used in conjunction with and a section of stretching out is arranged with the plug puncture part of the plug that consists of with elastic-plastic material in the endoporus of end sharp-pointed head, that being used for of can inserting the syringe front end when the blood drawing operation matches with puncture needle.
The present invention has the following advantages:
1. syringe front end of the present invention seals for the sealing gasket that consists of with elastic-plastic material in the endoporus of the end of matching with puncture needle, because this special structure, after using the present invention's blood sampling, whole syringe is a container that holds blood sample, and need not as prior art, need blood sample is transferred in the storage blood test tube again.Because the tail end of syringe of the present invention is coniform, and on push-pull bar with a ready-made breach for push-pull bar is fractureed, after blood specimen collection is finished as need to carry out centrifugalize, can be directly push-pull bar be fractureed from default indentation, there, and directly the present invention is positioned over and carry out centrifugal operation on centrifugal the setting.
In the structure of the present invention in the dismountable end of arranging of syringe front end, particularly with syringe medicated cap and the front end thread connection of syringe of dismounting, can make things convenient for like this it to make, the while also can make things convenient for other liquid of interpolation or medicine in afterwards the experiment.
Since in the syringe of the present invention the end position that is used for matching with puncture needle of span syringe front end be provided with a piston limit stop, make the present invention state lower piston front end to be used and syringe front end for end that puncture needle matches between leave one section space.Owing to the buffering in such space being arranged, the incident deficiency of blood sample and the problem of blood back flow of ejecting in the time of when taking a blood sample operation, can effectively overcoming existing blood sampling apparatus blood sample collection among the present invention.
4. the present invention's conical structure inner at syringe and that be positioned at tail end is provided with the piston limit catch with the cylindrical barrel place of combining, and this structure can be guaranteed further that the tail end of syringe is unlikely and destroyed by centrifugal action carrying out centrifugal operation.
5. the outer wall of columniform syringe of the present invention is provided with matsurface, can in use increase the frictional force of operator's hands, makes the blood sampling operation more convenient, laborsaving.
6. puncture needle used in the present invention is owing to being provided with plug puncture part, therefore at puncture needle the sampling blood vessel is communicated with by piercing needle with syringe inside, after finishing the blood collection operation, directly puncture needle is extracted, the blood that gathers is stored in the syringe.
Description of drawings
Accompanying drawing 1 is sectional structure chart of the present invention.Accompanying drawing 2 is puncture needle used in the present invention.Among the figure: 1-push-pull bar, the 2-push-pull bar breach that fractures, 3-piston, the 4-syringe, 5-coarse part, 6-syringe medicated cap, the 7-conical structure, 8-syringe afterbody block, 9-additive, 10-scale, 11-are located at the piston limit block at syringe middle part, knowledge place of 12-labeling, plug in the 13-syringe medicated cap end, 14-plug puncture part, 15-syringe needle fixed part, 16-needle cap.
The specific embodiment
The present invention is below in conjunction with the accompanying drawing explanation.
As seen from Figure 1, the present invention by the stage casing be columniform syringe 4, push-pull bar 1, piston 3, the syringe medicated cap 6 that fixes with push-pull bar 1 and the plug 13 that is arranged in syringe medicated cap 6 ends consist of, wherein be provided with piston limit block 11 in the syringe 4, be used for the extreme position that pushes away before the limited piston.As seen from the figure, when piston is restricted to the position of piston limited block 11, have one section cushion space at the front end of syringe, this cushion space can be prevented the adverse current of Hemostatic Oral Liquid in concrete use, also can prevent the Hemostatic Oral Liquid ejection.The tail end of syringe 4 is that conical structure 7 these structures and existing centrifugation apparatus are complementary.Axially be provided with the hole that cooperates with push-pull bar along conical structure 7.At the inwall of syringe and be positioned at conical structure 7 and be provided with afterbody block 8 with the position that the syringe cylindrical part intersects, the rear extreme position that is used for limited piston 3, this structure also can strengthen the intensity of its tail when carrying out centrifugal operation simultaneously, avoids producing destruction because of the effect of centrifugal force.The front end of syringe cooperates with a syringe medicated cap 6 with one section screw thread.The front end of syringe medicated cap is provided with the end of matching for puncture needle, and this end and existing syringe are similar, but its endoporus is embedded with the plug that consists of with elastic-plastic material, and by plug the syringe enclose inside is got up.At push-pull bar 1 breach 2 for the push-pull bar that fractures that sets in advance is arranged, after finishing the blood sampling operation, can push-pull bar 2 be fractureed along this position, so that the storage of follow-up blood sample and centrifugal treating.The outer wall of syringe can have coarse part 5, so that the operation of taking a blood sample.Also scale 10 can be set on the outer wall of syringe in addition, and the mark 12 that is used for pasting sign.
The puncture needle that the disposable blood sampling blood pack unit that shows with Fig. 1 is used in conjunction with is seen accompanying drawing 2.As seen from Figure 2, it is identical with common puncture needle basically, also be to be consisted of by syringe needle and syringe needle fixed part 15, needle cap 16 is not arranged using the hour hands head part to overlap, but the tail end of syringe needle fixed part 15 wherein has one section part 14 with sharp-pointed head stretching, this part can pierce through the plug of the plug that consists of with elastic-plastic material in the endoporus of end when syringe needle cooperates with syringe, inner and the outside conducting with the syringe needle syringe, in order to take a blood sample operation, or the syringe contained object is extracted out in syringe.
The present invention is when to be used, piston 3 is positioned at piston limit block 11 places, have between the front end of piston 3 and syringe front end (namely being provided with the syringe medicated cap end that cooperates with puncture needle) to account for approximately 3/1 to 2/5 space of syringe gross space, this space can prevent blood back flow and ejection effectively in the blood sampling operation.In concrete use, puncture needle is matched with syringe medicated cap end (cooperating basically the same with syringe needle with existing syringe), plug on puncture needle puncture part 14 namely pierces through the plug 13 in the syringe medicated cap end like this, make the outside conducting of syringe inside and piercing needle, the operation of can taking a blood sample.The plug 13 of after finishing the blood sampling operation puncture needle being extracted in the syringe medicated cap end namely seals again, avoids the blood sample of syringe inside by outside contamination.When needs carry out centrifugal operation, along the prefabricated breach 2 on the push-pull bar 1 push-pull bar is fractureed, syringe can be positioned over and carry out centrifugal operation on the centrifuge.When need to be in blood sample adding relevant medicine or liquid in addition, can be with syringe medicated cap 6 from the syringe under the rotary unloading, from then on end adds corresponding material again, then can syringe medicated cap 6 spiral covers be fixed on the syringe again.
Claims (6)
1. disposable blood sampling blood pack unit, include columniform syringe, be arranged at the end match with puncture needle of being used for of syringe front end, be arranged in the syringe can be along the piston of syringe axially-movable, and be fixed in the push-pull bar that is used for the pushing piston motion on the piston, the tail end that it is characterized in that syringe is conical structure, axially be provided with the hole that cooperates with push-pull bar along conical structure, and on push-pull bar, with a ready-made breach for push-pull bar is fractureed, be arranged at sealing for the plug that consists of with elastic-plastic material in the endoporus of the end of matching with puncture needle of syringe front end.
2. disposable blood sampling blood pack unit according to claim 1 is characterized in that 3/1 to 2/5 place that the interior span syringe front end of syringe is the syringe total length is provided with a piston limit block.
3. disposable blood sampling blood pack unit according to claim 1 and 2 is characterized in that the end that is used for matching with puncture needle of syringe front end is dismountable syringe medicated cap, uses thread connection between the front end of described dismountable syringe medicated cap and syringe.
4. disposable blood sampling blood pack unit according to claim 3, it is characterized in that conical structure inner at syringe and that be positioned at tail end is provided with the spacing catch in piston rear portion with the cylindrical barrel place of combining, and is provided with on the spacing catch in piston rear portion and push-pull bar hole movingly.
5. disposable blood sampling blood pack unit according to claim 4 is characterized in that the outer wall of columniform syringe is provided with coarse part.
6. the puncture needle that is used in conjunction with described any the disposable blood sampling blood pack unit of claim 1 to 5, comprise piercing needle, the fixing fixed part that matches with the end that is used for matching with puncture needle of syringe front end of piercing needle and be used for, the tail end that it is characterized in that the fixed part of puncture needle has a section of stretching out with the plug puncture part of the plug that consists of with elastic-plastic material in the endoporus of end sharp-pointed head, that being used for of can inserting the syringe front end when the blood drawing operation matches with puncture needle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104748845A CN102940497A (en) | 2012-11-21 | 2012-11-21 | Disposable blood sampling container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104748845A CN102940497A (en) | 2012-11-21 | 2012-11-21 | Disposable blood sampling container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102940497A true CN102940497A (en) | 2013-02-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104748845A Pending CN102940497A (en) | 2012-11-21 | 2012-11-21 | Disposable blood sampling container |
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| CN (1) | CN102940497A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2062604U (en) * | 1990-03-30 | 1990-09-26 | 浙江新华医用塑料厂 | Once-used sterile blood sampler |
| CN2270463Y (en) * | 1996-11-13 | 1997-12-17 | 上海医用缝合针厂 | Disposable collector for taking sample of venous blood |
| CN202027582U (en) * | 2011-02-21 | 2011-11-09 | 张晓东 | Multifunctional disposable medical used hemostix |
| CN202982012U (en) * | 2012-11-21 | 2013-06-12 | 中国农业科学院兰州畜牧与兽药研究所 | Disposable blood-sampling container and puncture needle |
-
2012
- 2012-11-21 CN CN2012104748845A patent/CN102940497A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2062604U (en) * | 1990-03-30 | 1990-09-26 | 浙江新华医用塑料厂 | Once-used sterile blood sampler |
| CN2270463Y (en) * | 1996-11-13 | 1997-12-17 | 上海医用缝合针厂 | Disposable collector for taking sample of venous blood |
| CN202027582U (en) * | 2011-02-21 | 2011-11-09 | 张晓东 | Multifunctional disposable medical used hemostix |
| CN202982012U (en) * | 2012-11-21 | 2013-06-12 | 中国农业科学院兰州畜牧与兽药研究所 | Disposable blood-sampling container and puncture needle |
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Application publication date: 20130227 |