Summary of the invention
The invention provides a kind of three way cock of blood sampling and include the hemostix of this blood sampling three way cock, above-mentioned to solve
What blood taking tube existed operates inconvenience and can insert the technical problem in two holes on blood taking tube.
To this end, the blood sampling three way cock that the present invention provides, the row's blood pin including threeway needle stand and being provided thereon and pin of bleeding,
Described threeway needle stand is provided with blood sampling interface, blood pin connects hole to row, pin of bleeding connects hole, exhaust port and blood receiving hole, described blood sampling
Interface is provided with blood-collecting needle tube, described in pin of bleeding connect hole and be positioned at described row's blood pin and connect the aperture section in hole, one end of described row's blood pin
Being located at described row's blood pin and connect in hole, described blood-collecting needle tube communicates with described row's blood pin through blood receiving hole, described in pin of bleeding be located at described
Pin of bleeding connects in hole, described in bleed pin endoporus more than the external diameter of described row's blood pin, described in pin of bleeding parallel with described row's blood pin,
The needle point side of the inner chamber of described pin of bleeding contacts with described row's blood pin, described in bleed between pin and described row's blood pin formed
Passage communicates with described exhaust port, the afterbody of the slope mouth at described row's blood pin needle point be positioned at described in bleed pin needle point it
Outward.
Further, the afterbody of the slope mouth at described row's blood pin needle point be positioned at described in bleed pin needle point outside 1-5 milli
Rice.
Further, described threeway needle stand is provided with the elastic hemostasis for covering described row's blood pin and described pin of bleeding
Set.
Further, the needle point of pin of bleeding described in is arranged in the side that the needle point of described row's blood pin is identical.
Further, described row's blood pin is inserted into described row's blood pin and connects in hole, described in pin of bleeding be inserted into described
Pin of bleeding connects in hole.
Further, the inwall of pin is bled described in also to use adhesive bonding at the wall contacts of described row's blood pin be one
Body.
Further, the outer wall of described blood sampling interface has the compression conical surface that the inwall with described blood-collecting needle tube coordinates.
Further, described threeway needle stand includes the location for described blood sampling three way cock location being loaded on hemostix
Platform.
Further, described positioning table is provided with for the stopper slot spacing to described blood sampling three way cock.
Further, the external diameter of pin is bled described in less than three times or two times of external diameter of described row's blood pin.
On the other hand, present invention also offers a kind of hemostix, including above-mentioned blood sampling three way cock.
The invention have the advantages that.
1., according to the blood sampling three way cock of the present invention, described blood sampling interface is provided with blood-collecting needle tube, described in pin of bleeding connect hole
Being positioned at described row's blood pin and connect the aperture section in hole, one end of described row's blood pin is located at described row's blood pin and connects in hole, described blood-collecting needle tube
Communicate with described row's blood pin through blood receiving hole, described in bleed pin be located at described in pin of bleeding connect in hole, described in the bleed endoporus of pin be more than
The external diameter of described row's blood pin, described in pin of bleeding parallel with described row's blood pin, described in bleed the needle point side of inner chamber of pin with described
Row blood pin contact, described in bleed between pin and described row's blood pin formed passage communicate with described exhaust port.Using
Cheng Zhong, in addition to completing its basic function, especially prominent, row is after blood pin is inserted into blood taking tube certain depth, and pin of bleeding can be with
And enter in blood taking tube, the oral area only one of which jack to blood taking tube, can prevent for relative two syringe needles being set up in parallel
Only operation some caused inconvenient or two syringe needles are inserted into blood taking tube inwall and form the possibility of pollutant, solve two also
When the syringe needle that row are arranged inserts blood sampling spout, impetus changes and may cause the problem of accident, and easy to operate.
2., according to the blood sampling three way cock of the present invention, elastic hemostasia sleeve all includes row's blood pin and exhaust tube in protection, thus
The safety in blood collection procedure can be effectively improved, it is possible to further reduce the pollution in outer bound pair blood taking tube, blood sampling can be improved
The accuracy of detection.And it is only the most permissible with an elastic hemostasia sleeve.
In addition to objects, features and advantages described above, the present invention also has other objects, features and advantages.
Below with reference to accompanying drawings, the present invention will be further described in detail.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail, but the present invention can be defined by the claims
Implement with the multitude of different ways covered.
With reference to Fig. 1, a kind of blood sampling three way cock that the present invention provides, including threeway needle stand 1 and row's blood pin 2 of being provided thereon
With pin 3 of bleeding, threeway needle stand 1 is provided with blood sampling interface 11, blood pin connects hole 12 to row, pin of bleeding connects hole 13 and exhaust port 14,
Blood sampling interface 11 is provided with blood-collecting needle tube 4, and pin of bleeding connects hole 13 and is positioned at row's blood pin and connects the aperture section in hole 12, one end of row's blood pin 2
The row's of being located at blood pin connects in hole 12, and blood-collecting needle tube 4 communicates with row's blood pin 2 through blood receiving hole 15, and pin 3 of bleeding is located at pin of bleeding and connects hole 13
In, the endoporus of pin 3 of bleeding is parallel with row's blood pin 2 more than the external diameter of row's blood pin 2, pin 3 of bleeding;Bleed the needle point one of inner chamber of pin 3
Side contacts with row's blood pin 2, and the passage 32 formed between pin 3 and row's blood pin 2 of bleeding communicates with exhaust port 14.
In use, because row's blood pin 2 is positioned in the inner chamber of pin 3 of bleeding, therefore the two is for be together inserted in blood taking tube,
Blood-collecting needle tube 2 is inserted into human vein, the air extractor work of hemostix, is connect through passage 32, aerofluxus by the gas in blood taking tube
Mouthfuls 14 extract out so that form instant negative pressure in blood taking tube, thus blood is flowed by blood-collecting needle tube 4, blood receiving hole 15 and row's blood pin 2
Enter in blood taking tube;After required blood sampling volume reaches, the row's of extracting blood pin 2 and pin 3 of bleeding;As needed multiple detection projects, then repeat
Row's blood pin 2 and pin 3 of bleeding are inserted in the blood taking tube of correspondence and carry out blood collecting, after all of detection project to be done, extract
The syringe needle of blood-collecting needle tube 4.
So, by blood taking tube inner chamber is formed instant negative pressure, it is possible to accurately control blood sampling volume, and without to blood taking tube
Preset negative pressure, shortens the step of the blood taking tube technological process of production, decreases production cost, reduces the percent defective of blood taking tube,
Use relatively reliable.Further, in use, obviously it is longer than owing to row's blood pin 2 is positioned to bleed pin 3 and arrange blood pin 2
Bleed pin 3 to blood taking tube only one of which jack during operation, arrange the blood pin 2 middle part facing to blood sampling spout during operation, grasp
Facilitate;Again owing to row's blood pin 2 is together with pin 3 of bleeding, stress point when inserting in blood taking tube is all the time at one, relative to two
The situation that when the individual syringe needle separately, being set up in parallel is inserted into blood sampling spout, impetus changes, improves stressing conditions, improves
Reliability, more convenient to operate.The more important thing is that being prevented from some or two syringe needles that operation inconvenience causes is inserted into
Blood taking tube inwall forms the possibility of pollutant.
With reference to Fig. 1, in a preferred embodiment, that side that the inner chamber of the needle point side of pin 3 of bleeding contacts with row's blood pin 2
Relative with exhaust port 14.That side that the inner chamber of the needle point side of pin 3 contacts with row's blood pin 2 it addition, bleed can also position
Left side or right side in exhaust port 14.Generally, that side contacted will not be positioned at the side of exhaust port 14,
Because being likely to result in obstructed between passage 32 and exhaust port 14 or structure being the most complicated.
With reference to Fig. 1, in a preferred embodiment, the afterbody of the slope mouth at row's blood pin 2 needle point is higher than the needle point of pin 3 of bleeding.
The height exceeded is about 1 to 5 millimeter.The setting of this structure makes insertion process more smooth and easy.The needle point of pin 3 of bleeding is arranged in
Arrange the side that the needle point of blood pin 2 is identical, during use, be inserted in blood taking tube and will not produce the socket that secondary is new.
With reference to Fig. 1, in a preferred embodiment, threeway needle stand 1 is provided with for the row's of covering blood pin 2 and the elasticity of pin 3 of bleeding
Hemostasia sleeve 5.Owing to row's blood pin 2 is together with pin 3 of bleeding, therefore the two just can be covered by an elastic hemostasia sleeve 5 simultaneously,
When blood taking tube extracted out by row's blood pin 2, row's blood pin 2 is played the effect preventing blood outflow by elastic hemostasia sleeve 5.It addition, can also be by two
Person protects simultaneously and prevents from foreign body from adhering to polluting blood taking tube on pin 3 of bleeding.Such as, elastic hemostasia sleeve 5 use rubber or
Person's silica gel elastomeric material is made.Specifically, during use, when row's blood pin 2 and pin 3 of bleeding are inserted in blood taking tube,
Elastic hemostasia sleeve 5 resiliency compressible, thus without being taken off by elasticity hemostasia sleeve 5, elastic hemostasia sleeve 5 is kept off by the plug of blood taking tube
Outside blood taking tube, when blood sampling completes, row's blood pin 2 and pin 3 of bleeding are extracted from blood taking tube, and elastic hemostasia sleeve 5 is graying automatically
Again the two is encased, convenient and reliable during use.
With reference to Fig. 1, in a preferred embodiment, one end of row's blood pin 2 is inserted into arranging blood pin and connects in hole 12, pin 3 of bleeding
The pin that is inserted into bleeding connects in hole 13.Further, row's blood pin 2 and row's blood pin connect and can pass through adhesive sealing, pin 3 of bleeding between hole 12
And pin of bleeding connects and can also use adhesive sealing between hole 13.It addition, bleed at the wall contacts of the inwall of pin 3 and row's blood pin 2
Adhesive can also be used to be bonded as one.
With reference to Fig. 1, in a preferred embodiment, the outer wall of blood sampling interface 11 has the pressure that the inwall with blood-collecting needle tube 4 coordinates
The tight conical surface 111.In use, the inwall of blood-collecting needle tube 2 compresses holding sealing with the compression conical surface 111 of blood sampling interface 11,
After exhausting all of inspection project, the syringe needle of blood-collecting needle tube 2 is extracted from human body, and blood sampling three way cock take out from hemostix,
So that other people are drawn blood by the blood sampling three way cock more renewed.For guaranteeing safety, different uses different adopting per capita
Blood three way cock.Additionally, be additionally provided with the location for described blood sampling three way cock location being loaded on hemostix on threeway needle stand 1
Platform.This positioning table is provided with for the stopper slot spacing to described blood sampling three way cock.
With reference to Fig. 1, in a preferred embodiment, exhaust port 14 is vertical with blood receiving hole 15;It is of course also possible in other angles
Degree.The linkage section 141 of exhaust port 14 is arranged in the conical surface, in order to coordinate with the air extractor of hemostix.
It addition, with reference to Fig. 1, the external diameter of pin 3 of bleeding is less than three times of the external diameter arranging blood pin 2;Can also the row's of being less than blood pin 2
Two times of external diameter.
With reference to Fig. 1, another aspect of the present invention additionally provides a kind of hemostix, including above-mentioned blood sampling three way cock.Blood sampling
The air extractor of instrument is connected with the exhaust port 14 of blood sampling three way cock.
As can be seen from the above description, the above embodiments of the present invention have the following technical effect that.
Blood sampling three way cock according to the present invention and hemostix, in use, row is together with blood pin 2 with pin 3 of bleeding is
Being inserted in blood taking tube, blood taking tube and blood sampling three way cock are during relatively inserting, and stress point is only at one, thus not
Blood sampling three way cock can be produced the sudden change of stress point.One insertion point is greatly improved the convenience of operation.Additionally, due to two
Setting outside one in pin one, horizontal ultimate range shared when being inserted into blood taking tube the most significantly reduces, thus to blood taking tube
Jack position precision be also greatly lowered, can further improve the convenience of operation such that it is able to be greatly lowered because of syringe needle
It is inserted into blood taking tube inwall and produces the possibility of pollutant.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, that is done any repaiies
Change, equivalent, improvement etc., should be included within the scope of the present invention.