CN101239209A - Disposable safety vein puncture needle - Google Patents
Disposable safety vein puncture needle Download PDFInfo
- Publication number
- CN101239209A CN101239209A CNA2008100493643A CN200810049364A CN101239209A CN 101239209 A CN101239209 A CN 101239209A CN A2008100493643 A CNA2008100493643 A CN A2008100493643A CN 200810049364 A CN200810049364 A CN 200810049364A CN 101239209 A CN101239209 A CN 101239209A
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- China
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- puncture needle
- protective casing
- needle holder
- paracentesis
- needle
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- 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.)
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The present invention provides a disposable safe intravenous puncture needle which is composed of puncture neilsbed, limiting cable, protective spring, protective sleeve and pincture needle. The protective sleeve forms a device with the puncture neilsbed (by lock catch consisted of the protective sleeve heave structure and the puncture neilsbed flute, locating surface consisted of the protective sleeve upper conical surface and the puncture neilsbed down conical surface), but the protective spring and limiting cable are shrinked hidden in the device (the protective spring has same length with the limiting cable, and both ends cement together). The puncture needle inserts into the puncture neilsbed and fixed cements with the puncture neilsbed by the protective sleeve and protective spring, the form is in accord with traditional puncture needle. When transfusion is finished and the puncture needle is pulled out, the protective sleeve can be released by turning the stripe shape heave of the protective sleeve, and the puncture needle is protected in the protective sleeve and can not be pulled out. So the intravenous puncture needle can be reliable protected after clinic using, and can avoid accidentally injery by needle puncturing.
Description
Technical field
The present invention relates to a kind of disposable safety vein puncture needle that is widely used in medical purpose.
Background technology
Disposable venipuncture needle is an indispensable medical apparatus and instruments in venous transfusion, blood sampling, the therapeutic process.Mostly the venipuncture needle that uses in clinical is on the needle body surface of venipuncture needle one plastic bushing to be set at present, in case needle body is contaminated; During use; must earlier plastic bushing be removed; carry out venipuncture procedure again; owing to there is not special storing unit; when treating that transfusion finishes, plastic bushing disappears without a trace and the needle point after using can not be protected often, even found plastic bushing; owing to will be sleeved on again on the needle body, just have by may taking place that needle point is stabbed.
Domestic also have unit or individual to study on this question, as: ZL:02112068.4, record and narrate " a kind of single wing transfusion syringe " and ZL:02112106.0 with safety device, record and narrate " a kind of transfusion needle " with safety device, above-mentioned two disclosure of the Invention implement sheath on the transfusion needle surface method transfusion needle is protected; Its scheme all is to have one or symmetrical finedraw by a tubular structure and on the pipe sidewall, and has locked groove at the terminal point of seam, so that the transfusion needle handle can not withdraw from after entering, to reach the purpose of protection.But, its structure is having certain deficiency on the clinical manipulation: its transfusion needle sheath is positioned at an end (near filter for transfusion side) of transfusion needle flexible pipe when dispatching from the factory, and the transfusion needle body surface still needs a protective jacket, cause waste to production unit, in addition, its safety device is a round tube, no hand held structures, the finedraw para-position that the transfusion needle handle will be opened with it during use, needle handle is entered in the safe pillar, and this para-position work is very much trouble, needs the nurse to rotate pillar, make its most advanced and sophisticated V-notch aim at the transfusion needle handle, could realize.Because of defective on its structure, cause difficulty for clinical use, be unfavorable for the popularization and the use of its product.
Summary of the invention
The objective of the invention is to overcome above deficiency, a kind of new safety vein puncture needle is provided.Feature of the present invention is: the protective casing of safety vein puncture needle and the Paracentesis needle holder locating surface of the lower end conical surface formation of Paracentesis needle holder (snap close of forming by the groove on bulge-structure on the protective casing and the Paracentesis needle holder and the upper end conical surface of protective casing with) are combined into a device; protection spring and tie-down cable then are integrated in this device, and consistent with the form of traditional Paracentesis needle holder.Safety vein puncture needle of the present invention transfusion finish pull out puncture needle after, rotate the strip projected parts on the protective casing, but release guard sleeve pipe just in protective casing, can not stretch out it needle tip protection.Thereby make the venipuncture needle after the clinical use obtain reliable protection, the generation of avoiding acupuncture to accidentally injure.
Above-mentioned a kind of safety vein puncture needle, its protective casing and Paracentesis needle holder are that the locating surface of the conical surface and the conical surface formation of Paracentesis needle holder lower end of the snap close formed by the bulge-structure on the protective casing and the groove on the Paracentesis needle holder and protective casing upper end makes up.
Above-mentioned a kind of safety vein puncture needle, its protection spring and tie-down cable are isometric, and both ends be glued together, its two ends are inserted in Paracentesis needle holder and the protective casing respectively and fixing with it the bonding.Protection spring and tie-down cable contract and are hidden in Paracentesis needle holder and the common space that constitutes of protective casing.
Above-mentioned a kind of safety vein puncture needle, its puncture needle inserts Paracentesis needle holder by protective casing, protection spring and bonds with Paracentesis needle holder is fixing.
Above-mentioned a kind of safety vein puncture needle, the fixedly bonding of its puncture needle, protection spring and Paracentesis needle holder is to be undertaken by the lateral incision on the Paracentesis needle holder; The fixedly bonding of protection spring and protective casing is to be undertaken by the lateral incision on the protective casing.
Above-mentioned a kind of safety vein puncture needle is duplicate with traditional venipuncture needle in venipuncture (transfusion) therapeutic process, need not change the clinical manipulation rules.After infusion treatment finishes and pulls out venipuncture needle, rotate the strip bulge on the protective casing, make the protective casing rotation, thereby open the snap close of protective casing and Paracentesis needle holder formation, protective casing discharges under the effect of protection spring, and the needle tip cover is protected.At this moment, needle tip is between the upper surface of protective casing and the point of the awl in it upper surface.Because the effect of tie-down cable and protective casing inner cone point (its upper surface internal diameter is less than the puncture needle external diameter) makes needle tip not expose, and has avoided the injury of needle point to human body.
The present invention has the following advantages: one, version and traditional venipuncture needle are similar, need not change rule of operation, and easy to manufacture; Two, safety vein puncture needle is when non-guard mode (before using and in using), and protection spring and tie-down cable are in the latent state that contracts, the volume minimum, and compact conformation, good looking appearance also are beneficial to use, operation simultaneously; Three, safety vein puncture needle is entering the protection attitude when (wanting the release guard sleeve pipe after the use), and the rotation protective casing both can have been realized the protection to puncture needle, has reliably, characteristics rapidly; Process characteristic when four, having taken into full account mechanization production, the bonding of protection spring and puncture needle can once be finished.Can reduce operation, labor intensity is little, production efficiency is high.
Description of drawings
Fig. 1 is an assembly structure sketch map of the present invention
Fig. 2 is the profile of the present invention when non-guard mode
Fig. 3 is the profile of the present invention when guard mode
Fig. 4 is the back elevation of the present invention when non-guard mode
Specific implementation method
Shown in Figure 1 is the assembly structure sketch map of disposable safety vein puncture needle of the present invention.Disposable safety vein puncture needle of the present invention is made up of Paracentesis needle holder 1, tie-down cable 2, protection spring 3, protective casing 4 and puncture needle 5.
Shown in Figure 2 is the profile of disposable safety vein puncture needle of the present invention when non-guard mode.Disposable safety vein puncture needle of the present invention is under non-guard mode (before using and in using); become the safety vein puncture needle base device by Paracentesis needle holder 1, tie-down cable 2, protection spring 3, protective casing 4 mutual group; puncture needle 5 inserts in the safety vein puncture needle base device; with Paracentesis needle holder 1 fixing bonding, thereby constitute complete disposable safety vein puncture needle.The safety vein puncture needle base device constitutes shell by Paracentesis needle holder 1 and protective casing 4, and latent have protection spring 3 and tie-down cable 2 wherein contract.Paracentesis needle holder 1 and protective casing 4 by the conical surface 1e above separately and 4e and groove 1c and protruding 4a separately position and locking.The two ends of tie-down cable 2 and the two ends gluing of protecting spring 3.Puncture needle 5 inserts in the Paracentesis needle holder 1 by protective casing 4, protection spring 3.Puncture needle 5 is fixed bonding with the upper end of protection spring 3 by otch 1b on the Paracentesis needle holder 1 and Paracentesis needle holder 1; Bonding is then fixed by otch 4c on the protective casing 4 and protective casing 4 in the lower end of protection spring 3.
Shown in Figure 3 is the profile of disposable safety vein puncture needle of the present invention when guard mode (state after product uses).The present invention rotates the strip projected parts above the protective casing 4 after use, groove 1c on the Paracentesis needle holder 1 and the formed snap close of protruding 4a on the protective casing 4 are opened.At this moment, protective casing 4 discharges under the effect of protection spring 3, and needle tip 5a cover is protected.Needle tip 5a is between the upper surface of several lobe inner cone point 4d of protective casing 4 upper end conical surface 4e and protective casing 4.Because the effect of several lobe inner cone point 4d (its upper-end inner diameter is less than puncture needle 5 external diameters) of tie-down cable 2 and protective casing 4 makes needle tip 5a not expose, and can not withdraw from simultaneously.Like this, needle tip 5a is just by rapidly, protected reliably.Thereby the danger of having avoided medical personnel to be stabbed by needle point.
Shown in Figure 4 is the back elevation of disposable safety vein puncture needle of the present invention when non-guard mode (before using and in using).Figure as can be known thus: can once the upper end and the Paracentesis needle holder 1 of puncture needle 5, protection spring 3 be fixed bonding by the otch 1b on the Paracentesis needle holder 1; The lower end and the protective casing 4 of protection spring 3 can be fixed bonding by the otch 4c that is positioned at protective casing 4 hypomeres.Like this, merged agglutinating process, reduced production link, reduced cost, improved production efficiency.
Claims (9)
1, disposable safety vein puncture needle is made up of Paracentesis needle holder (1), tie-down cable (2), protection spring (3), protective casing (4) and puncture needle (5).It is characterized in that: protective casing (4), protection spring (3), tie-down cable (2) mutual group are contained on the Paracentesis needle holder (1), and become the safety vein puncture needle base device with Paracentesis needle holder (1) mutual group, puncture needle (5) inserts in the safety vein puncture needle base device, with Paracentesis needle holder (1) bonding, thereby constitute complete disposable safety vein puncture needle;
2, according to the described disposable safety vein puncture needle of claim (1), it is characterized in that: handle (1a) is arranged on the Paracentesis needle holder (1), and handle (1a) is gone up fluted (1c); The epimere of Paracentesis needle holder (1) is the pipe (1d) that external diameter upwards dwindles gradually, and its internal diameter (1h) size is between 0.4mm～1.3mm; The hypomere external diameter of Paracentesis needle holder (1) is the pipe of 2mm～4mm, and a side has otch (1b) in the middle; The stage casing internal diameter (1g) of Paracentesis needle holder (1) is not less than 1.3mm; The hypomere internal diameter (1f) of Paracentesis needle holder (1) is not less than 1.5mm, and hypomere internal diameter (1f) is greater than stage casing internal diameter (1g); The stage casing internal diameter (1g) of Paracentesis needle holder (1) and the intersection of hypomere internal diameter (1f) are positioned at the center of otch (1b); There is the conical surface (1e) in the outside, lower end of Paracentesis needle holder (1);
3, disposable safety vein puncture needle according to claim 1, it is characterized in that: there is projection (4a) in the epimere outside of protective casing (4), there are several vertical protrusion (4a ') in the stage casing outside, and there is the big down little bellmouth (4b) of the center, lower end, and hypomere one side has otch (4c); There are several lobe awl points (4d) inside, lower end of protective casing (4) to upper process and gathering gradually, and number lobe awl point (4d) is around the rounded distribution of centrage of protective casing (4); There is the conical surface (4e) protective casing (4) inboard, upper surface;
4, disposable safety vein puncture needle according to claim 1, it is characterized in that: the length of the length of tie-down cable (2) and protection spring (3) quite and the length of being longer than the puncture needle exposed parts, and its two ends are bonded in the two ends of protection spring (3) respectively;
5, disposable safety vein puncture needle according to claim 1 is characterized in that: tie-down cable (2), protection spring (3) can contract and be hidden in the space of Paracentesis needle holder (1) and protective casing (4) formation; Wherein protect the upper end of spring (3) to place the stage casing internal diameter (1g) of Paracentesis needle holder (1), the lower end is enclosed within on several lobes awl points (4d) of protective casing (4);
6, disposable safety vein puncture needle according to claim 1 is characterized in that: the hypomere caliber size of Paracentesis needle holder (1) and the caliber sizableness of protective casing (4); The corresponding formation snap close of projection (4a) on groove (1c) on the Paracentesis needle holder (1) and the protective casing (4); The corresponding formation locating surface of the conical surface (4e) on the conical surface (1e) on the Paracentesis needle holder (1) and the protective casing (4);
7, disposable safety vein puncture needle according to claim 1 is characterized in that: puncture needle (5) passes protective casing (4), protection spring (3) enters in the epimere internal diameter (1h) of Paracentesis needle holder (1);
8, disposable safety vein puncture needle according to claim 1 is characterized in that: puncture needle (5), protection spring (3) are to be undertaken by the otch (1b) on the Paracentesis needle holder (1) with the fixedly bonding of Paracentesis needle holder (1); Protection spring (3) is to be undertaken by the otch (4c) on the protective casing (4) with the fixedly bonding of protective casing (4);
9, disposable safety vein puncture needle according to claim 1; it is characterized in that: the upper surface bore of the several lobe awl points (4d) on the protective casing (4) is less than the external diameter of puncture needle (5), and the aperture of the bellmouth (4b) of center, protective casing (4) lower end is greater than the external diameter of puncture needle (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100493643A CN101239209A (en) | 2008-03-17 | 2008-03-17 | Disposable safety vein puncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100493643A CN101239209A (en) | 2008-03-17 | 2008-03-17 | Disposable safety vein puncture needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101239209A true CN101239209A (en) | 2008-08-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100493643A Pending CN101239209A (en) | 2008-03-17 | 2008-03-17 | Disposable safety vein puncture needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101239209A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013023435A1 (en) * | 2011-08-12 | 2013-02-21 | Zhang Yaping | Secure vein puncture needle |
| CN110403692A (en) * | 2019-08-01 | 2019-11-05 | 中国人民解放军陆军军医大学第一附属医院 | A kind of laparoscopic surgery controllable fume extractor of Anti-stabbing constant pressure type |
| CN110812604A (en) * | 2019-11-14 | 2020-02-21 | 湛江健力源医疗用品有限公司 | Fixed needle puncture-proof syringe |
| WO2021093709A1 (en) * | 2019-11-14 | 2021-05-20 | 湛江健力源医疗用品有限公司 | Stab-preventing injection needle and stab-preventing injector with elastic protective cap |
-
2008
- 2008-03-17 CN CNA2008100493643A patent/CN101239209A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013023435A1 (en) * | 2011-08-12 | 2013-02-21 | Zhang Yaping | Secure vein puncture needle |
| CN110403692A (en) * | 2019-08-01 | 2019-11-05 | 中国人民解放军陆军军医大学第一附属医院 | A kind of laparoscopic surgery controllable fume extractor of Anti-stabbing constant pressure type |
| CN110812604A (en) * | 2019-11-14 | 2020-02-21 | 湛江健力源医疗用品有限公司 | Fixed needle puncture-proof syringe |
| CN110812604B (en) * | 2019-11-14 | 2020-07-07 | 湛江健力源医疗用品有限公司 | Fixed needle puncture-proof syringe |
| WO2021093709A1 (en) * | 2019-11-14 | 2021-05-20 | 湛江健力源医疗用品有限公司 | Stab-preventing injection needle and stab-preventing injector with elastic protective cap |
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| DD01 | Delivery of document by public notice |
Addressee: Zhang Yagen Document name: Notification of before Expiration of Request of Examination as to Substance |
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| DD01 | Delivery of document by public notice |
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| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080813 |