CN102631202A - Blood taking needle with visible blood returning - Google Patents
Blood taking needle with visible blood returning Download PDFInfo
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- CN102631202A CN102631202A CN2012101447831A CN201210144783A CN102631202A CN 102631202 A CN102631202 A CN 102631202A CN 2012101447831 A CN2012101447831 A CN 2012101447831A CN 201210144783 A CN201210144783 A CN 201210144783A CN 102631202 A CN102631202 A CN 102631202A
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Abstract
The invention relates to a blood taking needle with visible blood returning, which comprises a needle tubing, a needle seat and a blood-resistant sleeve, wherein the needle tubing is an integral double-end needle tubing and penetrates through the needle seat, one end of the needle tubing is a vein puncture needle, the other end of the needle tubing is an intubation tube needle, the blood-resistant sleeve is sleeved at the outer part of the intubation tube needle, the opening end of the blood-resistant sleeve is fixed on the needle seat, a visible blood returning cavity is arranged in the needle seat, and blood returning holes are arranged on the needle tubing which is positioned in the visible blood returning cavity. Two blood returning holes are symmetrically arranged on the needle tubing. After the blood taking needle with the visible blood returning successfully takes the blood, the blood quickly flows out from the blood returning holes and overflows from the visible blood returning cavity, so that the blood returning phenomenon can be quickly and clearly observed. The blood taking needle with the visible blood returning has a reasonable structure, is simple to operate for taking blood and has high efficiency, the blood returns quickly, clearly and reliably, so observation is facilitated, the residual blood volume in the blood returning cavity is small, so the puncture success rate is improved, the product waste is reduced, and the pain of a patient and the mental stress of medical personnel are relieved.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, specifically a kind of visible blood-back blood taking needle.
Background technology
We know, blood collection, utilization are important curative activities, blood taking needle, the blood taking tube important apparatus that is absolutely necessary.Past generally uses is the traditional syringes blood drawing, transfers to blood taking tube again and operation such as inspects by ready samples; In recent years, the vacuum tube single step is directly taken a blood sample becomes advanced blood sampling means.The vacuum tube single step is directly taken a blood sample and is adopted double end blood taking needle, vacuum test tube, blood collecting protecting sleeve hemostixes such as (needle holders).Existing double end blood taking needle is common blood taking needle, mainly comprises the venipuncture needle and the cannula needle of blood taking needle Connection Block and integrative-structure.Venipuncture needle is positioned at the front end of Connection Block, is used for venipuncture; Cannula needle is positioned at the other end of Connection Block, is used for being connected cooperation with vacuum test tube and takes a blood sample.The blood taking needle Connection Block is generally opaque, is invisible blood back structure, and like this, the probability of failing that causes taking a blood sample increases, and causes the waste of vacuum test tube.At present, the visible blood-flow pin is arranged also, disclose a kind of blood taking needle of visible blood-flow like Chinese patent 200520118666.3, it comprises puncture needle, needle stand, needle for inserting bottle, blood resistance unit, sleeve and vacuum test tube; Puncture needle and needle for inserting bottle are monomer structure, are communicated with the two ends of needle stand respectively; Needle stand is made up of transparent material, is hollow-core construction between wherein.After seeing blood back during puncture blood collecting etc. needle for inserting bottle is being inserted in the vacuum test tube, reducing the spoilage of blood taking needle, making things convenient for medical personnel again and, improved puncture success rate by blood sampling person.But because the existence of gas in the puncture needle tubing, its visible blood-flow reflection time is slow, and in order to reduce the pressure in the blood back cavity, the blood back cavity that needs is relatively big, and remaining blood volume reaches 0.3ml, is prone to cause the error of taking a blood sample.
Summary of the invention
Technical problem to be solved by this invention is the deficiency that overcomes above-mentioned prior art, provides a kind of structure reasonable, and it is simple to operate to take a blood sample, and efficient is high, and blood back is quick, clear, reliable, is convenient to observe the small visible blood-back blood taking needle of the remaining blood volume of blood back cavity.
The technical scheme that the present invention solves the problems of the technologies described above employing is: a kind of visible blood-back blood taking needle, and it includes needle tubing, needle stand, blood resistance unit, the double end needle tubing that needle tubing is structure as a whole; Needle tubing runs through needle stand, and an end is a venipuncture needle, and the other end is a cannula needle; Blood resistance unit is enclosed within the cannula needle outside; Its opening is fixed on the needle stand, it is characterized in that: be provided with a visible blood-flow chamber in the said needle stand, the needle tubing that is positioned at the visible blood-flow chamber is provided with the blood back hole.
Needle stand according to the invention is two body structures; It is connected to form by cutting tip holder and intubate end holder, and the cutting tip holder is the transparent body, is processed with the needle tubing cover in it; Gap between needle tubing and the needle tubing cover is the visible blood-flow chamber, and the needle tubing in the needle tubing cover is provided with the blood back hole.
Be arranged with two blood back holes on the needle tubing according to the invention.So that the convenient blood back of observing of multi-angle.
Intubate end holder according to the invention outer end is provided with the blood resistance unit fixing lug boss of a band conical surface, and the socket of blood resistance unit opening is fixed on this boss.
The present invention adopts said structure, and after blood sampling was punctured successfully, blood can go out from the blood back orifice flow fast; In the visible blood-flow chamber, overflow, be convenient to fast, clearly observe the blood back phenomenon, then; Immediately cannula needle is inserted vacuum test tube, under the vacuum test tube action of negative pressure, can take a blood sample smoothly; And the blood back hole is no longer hemorrhage, and remaining blood back blood volume seldom.Against existing technologies, the present invention constructs rationally, and it is simple to operate to take a blood sample, and efficient is high; Blood back is quick, clear, reliable, is convenient to observe, and the remaining blood volume of blood back cavity is small; Improve the success rate of puncture, reduced the waste of product, alleviated patient's misery and medical personnel's stress.
Description of drawings
Below in conjunction with accompanying drawing the present invention is done further description.
Fig. 1 is a structural representation of the present invention.
1. blood resistance units among the figure, 2. intubate end holder, 3. cutting tip holder, 4. needle tubing cover, 5. needle tubing, 6. blood back hole, 7. visible blood-flow chamber.
The specific embodiment
As can be seen from Figure 1, a kind of visible blood-back blood taking needle, it includes needle tubing 5, needle stand, blood resistance unit 1, the double end needle tubing that needle tubing 5 is structure as a whole, needle tubing 5 runs through needle stand, closely cooperates with needle stand two ends pore, and is with epoxy resin that needle tubing and needle stand is bonding firmly.Needle tubing 5 one ends are venipuncture needle, and venipuncture needle is positioned at the front end of needle stand, is used for venipuncture; The other end is a cannula needle, is used for being connected cooperation with vacuum test tube and takes a blood sample.Blood resistance unit 1 is enclosed within the cannula needle outside, and its opening is fixed on the needle stand.Blood resistance unit 1 is by elastomeric material processing, and after the cannula needle of needle tubing one end inserted vacuum test tube, it played sealing resistance blood.The venipuncture needle of needle tubing 5 one ends also can be with the needle tubing sheath outward.
Be provided with a visible blood-flow chamber 7 in the needle stand according to the invention, the needle tubing 5 that is positioned at visible blood-flow chamber 7 is provided with blood back hole 6.
Needle stand according to the invention is two body structures, and it is connected to form by cutting tip holder 2 and intubate end holder 3, and cutting tip holder 2 is connected Butt sealing with intubate end holder 3 through ultrasonic bonding or gummed form.Cutting tip holder 3 is the transparent body, makes with transparent engineering plastics.Be processed with needle tubing cover 4 in it, said needle tubing cover is cylindrical shape.Gap between needle tubing 5 and the needle tubing cover 4 is visible blood-flow chamber 7, and the needle tubing 5 in the needle tubing cover 4 is provided with blood back hole 6.Needle tubing 5 of the present invention can be smoothly through needle tubing cover 4 and visible blood-flow chamber 7, contact and do not overlap 4 inwalls with needle tubing, the blood sampling blood back can flow out from needle tubing blood back hole 6 smoothly, be convenient to observe take a blood sample whether successful.
Be arranged with two blood back holes 6 on the needle tubing 5 according to the invention, so that the convenient blood back of observing.The single or double perforate can be carried out through laser or other machining modes in blood back hole 6 on the needle tubing 5, and the position in needle tubing blood back hole 6 is arranged in visible blood-flow chamber 7, that is to say to be positioned at the effective overlapping areas of needle tubing and visible blood-flow chamber.
Intubate end holder according to the invention 2 outer ends are provided with the blood resistance unit fixing lug boss of a band conical surface, and blood resistance unit 1 opening socket is fixed on this boss.
After the present invention took a blood sample and punctures successfully, blood can go out from the blood back orifice flow fast, in the visible blood-flow chamber, overflows; Be convenient to fast, clearly observe the blood back phenomenon, then, immediately cannula needle inserted vacuum test tube; Under the vacuum test tube action of negative pressure; Can take a blood sample smoothly, and the blood back hole is no longer hemorrhage, remaining blood back blood volume seldom.
The present invention constructs rationally, and it is simple to operate to take a blood sample, and efficient is high, and blood back is quick, clear, reliable, is convenient to observe, and the remaining blood volume of blood back cavity is small, has improved the success rate of puncture, has reduced the waste of product, has alleviated patient's misery and medical personnel's stress.
Claims (4)
1. visible blood-back blood taking needle, it includes needle tubing, needle stand, blood resistance unit, the double end needle tubing that needle tubing is structure as a whole; Needle tubing runs through needle stand, and an end is a venipuncture needle, and the other end is a cannula needle; Blood resistance unit is enclosed within the cannula needle outside; Its opening is fixed on the needle stand, it is characterized in that: be provided with a visible blood-flow chamber in the said needle stand, the needle tubing that is positioned at the visible blood-flow chamber is provided with the blood back hole.
2. visible blood-back blood taking needle according to claim 1; It is characterized in that: said needle stand is two body structures; It is connected to form by cutting tip holder and intubate end holder, and the cutting tip holder is the transparent body, is processed with the needle tubing cover in it; Gap between needle tubing and the needle tubing cover is the visible blood-flow chamber, and the needle tubing in the needle tubing cover is provided with the blood back hole.
3. visible blood-back blood taking needle according to claim 1 is characterized in that: be arranged with two blood back holes on the said needle tubing.
4. visible blood-back blood taking needle according to claim 1 is characterized in that: said intubate end holder outer end is provided with the blood resistance unit fixing lug boss of a band conical surface, and the socket of blood resistance unit opening is fixed on this boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101447831A CN102631202A (en) | 2012-05-11 | 2012-05-11 | Blood taking needle with visible blood returning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101447831A CN102631202A (en) | 2012-05-11 | 2012-05-11 | Blood taking needle with visible blood returning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102631202A true CN102631202A (en) | 2012-08-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101447831A Pending CN102631202A (en) | 2012-05-11 | 2012-05-11 | Blood taking needle with visible blood returning |
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| Country | Link |
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| CN (1) | CN102631202A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102783954A (en) * | 2012-09-04 | 2012-11-21 | 山东新华安得医疗用品有限公司 | Mono-directional inverse-inhibiting safe blood taking needle |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2843342Y (en) * | 2005-03-18 | 2006-12-06 | 刘泽木 | Visual double end blood taking needle |
| CN2857819Y (en) * | 2005-06-27 | 2007-01-17 | 浙江康康医疗器械有限公司 | Returning blood visible blood taking needle |
| CN200991235Y (en) * | 2006-03-19 | 2007-12-19 | 刘泽木 | Disposable sensitive blood-returning visible double-head blood-taking needle |
| CN201157363Y (en) * | 2008-01-24 | 2008-12-03 | 张洪杰 | Disposable return blood-visible double-end blood taking needle |
| CN201356559Y (en) * | 2009-01-21 | 2009-12-09 | 威海鸿宇医疗器械有限公司 | Dual-layer vacuum blood taking tube |
| CN201775632U (en) * | 2010-09-03 | 2011-03-30 | 威海鸿宇医疗器械有限公司 | Visible-return-blood blood lancet |
| CN202604841U (en) * | 2012-05-11 | 2012-12-19 | 威海鸿宇医疗器械有限公司 | Blood return visible blood taking needle |
-
2012
- 2012-05-11 CN CN2012101447831A patent/CN102631202A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2843342Y (en) * | 2005-03-18 | 2006-12-06 | 刘泽木 | Visual double end blood taking needle |
| CN2857819Y (en) * | 2005-06-27 | 2007-01-17 | 浙江康康医疗器械有限公司 | Returning blood visible blood taking needle |
| CN200991235Y (en) * | 2006-03-19 | 2007-12-19 | 刘泽木 | Disposable sensitive blood-returning visible double-head blood-taking needle |
| CN201157363Y (en) * | 2008-01-24 | 2008-12-03 | 张洪杰 | Disposable return blood-visible double-end blood taking needle |
| CN201356559Y (en) * | 2009-01-21 | 2009-12-09 | 威海鸿宇医疗器械有限公司 | Dual-layer vacuum blood taking tube |
| CN201775632U (en) * | 2010-09-03 | 2011-03-30 | 威海鸿宇医疗器械有限公司 | Visible-return-blood blood lancet |
| CN202604841U (en) * | 2012-05-11 | 2012-12-19 | 威海鸿宇医疗器械有限公司 | Blood return visible blood taking needle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102783954A (en) * | 2012-09-04 | 2012-11-21 | 山东新华安得医疗用品有限公司 | Mono-directional inverse-inhibiting safe blood taking needle |
| CN102783954B (en) * | 2012-09-04 | 2014-08-27 | 山东新华安得医疗用品有限公司 | Mono-directional inverse-inhibiting safe blood taking needle |
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Application publication date: 20120815 |