CN104414650A - Test blood taking needle - Google Patents
Test blood taking needle Download PDFInfo
- Publication number
- CN104414650A CN104414650A CN201310377909.4A CN201310377909A CN104414650A CN 104414650 A CN104414650 A CN 104414650A CN 201310377909 A CN201310377909 A CN 201310377909A CN 104414650 A CN104414650 A CN 104414650A
- Authority
- CN
- China
- Prior art keywords
- needle
- piston
- blood taking
- needle tubing
- tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/14—Devices for taking samples of blood ; Measuring characteristics of blood in vivo, e.g. gas concentration within the blood, pH-value of blood
- A61B5/1405—Devices for taking blood samples
- A61B5/1411—Devices for taking blood samples by percutaneous method, e.g. by lancet
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150206—Construction or design features not otherwise provided for; manufacturing or production; packages; sterilisation of piercing element, piercing device or sampling device
- A61B5/150236—Pistons, i.e. cylindrical bodies that sit inside the syringe barrel, typically with an air tight seal, and slide in the barrel to create a vacuum or to expel blood
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150351—Caps, stoppers or lids for sealing or closing a blood collection vessel or container, e.g. a test-tube or syringe barrel
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Manufacturing & Machinery (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The invention discloses a test blood taking needle. The test blood taking needle comprises a needle head and a needle tube, the needle tube comprises an upper needle tube and a lower needle tube, the upper needle tube is screwed with the lower needle tube through threads, the edge of the opening of the lower part of the needle tube is provided with a circular seat edge, a piston is arranged in the needle tube, a push rod is fixed at the bottom of the piston, and the push rod and the piston are detachable. The test blood taking needle integrates the functions of an injector, a test tube and a test tube holder; the test blood taking needle is capable of avoiding the hidden danger of cross infection in the blood taking and testing process and saving material consumption, and moreover, the blood taking mode is consistent with that of a traditional mode so that the test blood taking needle is easy to be accepted by the medical staff.
Description
Technical field
The present invention relates to medical instruments field, especially a kind of inspection blood taking needle.
Background technology
Generally have two kinds of modes during current Clinical Laboratory blood, the first is traditional Blood collection, by syringe from human blood collection, transfers in vitro for chemical examination.The second utilizes blood taking needle.There is following shortcoming in the first Blood collection: first wastes disposable syringe, secondly in the process of transporting blood and transfer blood, all there is the hidden danger such as cross infection, and therefore increasing technology is being drawn close to the second Blood collection.But the blood taking needle complex structure used in the market, operation inconvenience, cost is high.As the patent No. 2005100835721 patent, in this part of patent application, in order to avoid blood backflow situation, install valve member in blood taking needle inside, so complicated result must bring the consequence that cost is high.Similar patent is also shown in the patent No. 2009201137896, installs the parts such as a series of sliding part for the protection of syringe needle and spring in the patented product, is also difficult to overcome high cost problem when producing.Also have obvious problem be syringe and test tube integration time large multi-scheme unreasonable, blood taking needle needle tubing cannot substitute cuvette construction and function, as the patent No. 200820175028 utility model patent, though this patent is also transform blood taking needle as on the basis of syringe, but the patented product is by after blood collection, but be difficult to easily blood be taken out from needle tubing, be therefore difficult in practice apply always.And the structure of complexity makes medical worker's class of operation like very inconvenient during blood taking needle, change step and the custom of tradition blood sampling, to be difficult to accept by medical worker.In addition, based on examination requirements, the test tube that blood is housed will be placed on special test tube rack for subsequent use, and therefore test tube rack also becomes a consumptive material link in this program.
Summary of the invention
The invention provides a kind of variorum emitter, test tube, test tube rack function, in the inspection blood taking needle of one, can ensure the hidden danger of blood sampling examination process without cross infection, can save consumptive material again, and Blood collection be consistent with traditional approach, is easily that medical worker accepts.
The present invention's one inspection blood taking needle, comprise syringe needle, needle tubing, needle tubing is divided into winding the needle tube and lower needle tubing, winding the needle tube and lower needle tubing screw thread spin, and there is annular seat limit at needle tubing lower openings edge, has piston in needle tubing, described piston base is fixed with push rod, and push rod and piston are demountable structure.
The present invention's one inspection blood taking needle, described piston upper surface is concave surface.
The present invention's one inspection blood taking needle, described needle tubing inner bottom part lateral symmetry is provided with T-shaped catch, and piston lateral symmetry offers T-slot, and piston thickness is greater than T-slot height.
The present invention's one inspection blood taking needle, described needle tubing both sides have all marked scale, and wherein side scale measures from needle tubing top, measure when opposite side scale is positioned at needle tubing bottommost from piston piston upper surface lowest part.
After taking such structure, medical worker can pull push rod to drive piston, and by blood collection in needle tubing, collection capacity calculates by the scale measured by top from needle tubing side, then plucks syringe needle and prevents from hurting sb.'s feelings.Moved to by piston bottom needle tubing, piston lateral symmetry groove engages with the T-shaped catch of needle tubing inner bottom part symmetry, and now piston is fixed motionless, can screw off the push rod spun with piston thread.The benefit that piston thickness is greater than T-slot length is, in the later stage to when in vitro blood carries out the centrifugal treating of 3000 revs/min, this structure can ensure that piston does not come off.Now under isobaric environment, blood preseration is not outer in needle tubing to be spattered and can avoid cross infection, again because can ensure the primitiveness of blood in closed environment.After delivering to chemical examination mechanism, can screw off winding the needle tube, because piston upper surface is concave surface, now needle tubing is just equivalent to cuvette construction, metering piston upper surface lowest part when scale is positioned at needle tubing bottommost by needle tubing opposite side piston.And without the need to by test tube rack, can ensure that on the seat limit at needle tubing bottom opening edge test tube is vertical quiet vertical, substitute test tube function completely, so can also save the cost of test tube rack.This invention effectively can reduce the hidden danger such as the infection breakage in blood sampling transport, union syringe, test tube and test tube rack function are, while alleviating medical worker's working strength, the whole process consumables cost of very big reduction, and whole process is close with traditional blood collection procedure step, all improvement are made around syringe itself substantially, overcome medical worker and are difficult to this drawback of utilization and extention because operating inconvenience.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is piston portion upward view.
Detailed description of the invention
A kind of inspection blood taking needle, comprise syringe needle 1, needle tubing 2, needle tubing 3 is divided into winding the needle tube 3 and lower needle tubing 4, winding the needle tube 3 and lower needle tubing 4 screw thread spin, and there is annular seat limit 5 at needle tubing 2 lower openings edge, has piston 6 in needle tubing, be fixed with push rod 7 bottom described piston 6, push rod 7 spins mutually with piston 6.
The present invention checks blood taking needle, it is characterized in that: described piston 6 upper surface is concave surface.
The present invention checks blood taking needle, it is characterized in that: described needle tubing inner bottom part lateral symmetry is provided with T-shaped catch 8, and piston lateral symmetry offers T-slot 9, and piston 6 thickness is greater than T-slot 9 height.
The present invention checks blood taking needle, and described needle tubing both sides have all marked scale, and wherein side scale measures from needle tubing top, measures when opposite side scale is positioned at needle tubing bottommost from piston piston upper surface lowest part.
Claims (4)
1. check a blood taking needle, comprise syringe needle, needle tubing, it is characterized in that: needle tubing is divided into winding the needle tube and lower needle tubing, winding the needle tube and lower needle tubing screw thread spin, and there is annular seat limit at needle tubing lower openings edge, has piston in needle tubing, described piston base is provided with push rod, and push rod spins mutually with piston.
2. check blood taking needle by described in claim 1, it is characterized in that: described piston upper surface is concave surface.
3. check blood taking needle by described in claim 1, it is characterized in that: described needle tubing inner bottom part lateral symmetry is provided with T-shaped catch, and piston lateral symmetry offers T-slot, and piston thickness is greater than T-slot height.
4. check blood taking needle by described in claim 1 or 2, it is characterized in that: described needle tubing both sides have all marked scale, wherein side scale measures from needle tubing top, measures when opposite side scale is positioned at needle tubing bottommost from piston piston upper surface lowest part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310377909.4A CN104414650B (en) | 2013-08-27 | 2013-08-27 | A kind of inspection blood taking needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310377909.4A CN104414650B (en) | 2013-08-27 | 2013-08-27 | A kind of inspection blood taking needle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104414650A true CN104414650A (en) | 2015-03-18 |
| CN104414650B CN104414650B (en) | 2016-08-10 |
Family
ID=52965526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310377909.4A Expired - Fee Related CN104414650B (en) | 2013-08-27 | 2013-08-27 | A kind of inspection blood taking needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104414650B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108113685A (en) * | 2016-11-28 | 2018-06-05 | 黄士华 | Multipurpose sample collector |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08141077A (en) * | 1994-11-21 | 1996-06-04 | Ikufumi Yamada | Blood vessel indwelling needle with stopcock |
| CN201939350U (en) * | 2010-12-31 | 2011-08-24 | 李文侠 | Blood collector |
| CN202036225U (en) * | 2011-02-16 | 2011-11-16 | 张守潘 | Blood collector |
| CN202397478U (en) * | 2012-01-03 | 2012-08-29 | 邓霞 | Hemostix for examination |
| WO2013114359A1 (en) * | 2012-01-31 | 2013-08-08 | Estar Technologies Ltd | System and method for producing interleukin receptor antagonist (ira) |
| CN203408052U (en) * | 2013-08-27 | 2014-01-29 | 曲旭亮 | Examination blood taking needle |
-
2013
- 2013-08-27 CN CN201310377909.4A patent/CN104414650B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08141077A (en) * | 1994-11-21 | 1996-06-04 | Ikufumi Yamada | Blood vessel indwelling needle with stopcock |
| CN201939350U (en) * | 2010-12-31 | 2011-08-24 | 李文侠 | Blood collector |
| CN202036225U (en) * | 2011-02-16 | 2011-11-16 | 张守潘 | Blood collector |
| CN202397478U (en) * | 2012-01-03 | 2012-08-29 | 邓霞 | Hemostix for examination |
| WO2013114359A1 (en) * | 2012-01-31 | 2013-08-08 | Estar Technologies Ltd | System and method for producing interleukin receptor antagonist (ira) |
| CN203408052U (en) * | 2013-08-27 | 2014-01-29 | 曲旭亮 | Examination blood taking needle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108113685A (en) * | 2016-11-28 | 2018-06-05 | 黄士华 | Multipurpose sample collector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104414650B (en) | 2016-08-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160810 Termination date: 20170827 |