CN201404537Y - Open type venous indwelling needle - Google Patents
Open type venous indwelling needle Download PDFInfo
- Publication number
- CN201404537Y CN201404537Y CN200920025759XU CN200920025759U CN201404537Y CN 201404537 Y CN201404537 Y CN 201404537Y CN 200920025759X U CN200920025759X U CN 200920025759XU CN 200920025759 U CN200920025759 U CN 200920025759U CN 201404537 Y CN201404537 Y CN 201404537Y
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- CN
- China
- Prior art keywords
- needle
- catheter
- draw point
- conduit
- puncture
- 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.)
- Expired - Fee Related
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to an open type venous indwelling needle, which belongs to a medical appliance. The open type venous indwelling needle comprises a catheter, a catheter seat, a steel needle and a needle seat, wherein the catheter is fixed on the catheter seat, the steel needle is fixed on the steel needle seat, and the steel needle is inserted in the catheter. The utility model is characterized in that a side hole is formed on the steel needle near a needle tip. After the blood vessel puncture, returned blood can fast seen between the catheter and the steel needle, so the returned blood observation time can be greatly shorted, the fast puncture situation judgment is ensured, and the puncture risk is reduced.
Description
Technical field
This utility model relates to a kind of opening venous detaining needle, belongs to medical apparatus.
Background technology
At present, domestic all types hospital has generally used venous detaining needle as the infusion treatment instrument, with respect to common draw point venoclysis needle; venous detaining needle can effectively be protected blood vessel; make patient feel more comfortable when treatment, particularly in department of pediatrics, this point is even more important.In application, find; there is the unreasonable structure part in existing opening remaining needle; during use; behind the puncture vessel; blood flows backward along the draw point endoporus; end at draw point just can be seen backflow blood; the nurse should take into account the site of puncture; divert sb.'s attention the blood back situation of observing needle rear end again; and this process may can experience the long time because of different patients' constitutive character, thereby causes that blood vessel is penetrated rear wall; even cause the puncture failure equivalent risk, be unfavorable for protecting patient's blood vessel.
The utility model content
The purpose of this utility model is to provide a kind of opening venous detaining needle, behind puncture vessel, can see blood back fast between conduit and draw point, and the time of observing blood back is shortened greatly, guarantees to judge fast the puncture situation, reduces the puncture risk.
Opening venous detaining needle described in the utility model comprises conduit, catheter block, draw point and needle stand, and conduit is fixed on the catheter block, and draw point is fixed on the draw point seat, and draw point is inserted in the conduit, it is characterized in that having side opening near the needle point place on the draw point.
Side opening preferably is positioned at the cutting edge of needle point towards a side, convenient judgement, and side opening width 0.5-2mm is suitable.
Be provided with the gap between conduit and draw point, the backflow of convenient puncture blood.
In the application process, behind puncture vessel, blood flows along the needle tubing endoporus, flow out from side opening then, along the Clearance Flow between draw point and the conduit, because conduit is a transparent material, therefore can just see the blood color at the conduit position, help the nursing procedure personnel to judge the situation of puncture vessel rapidly.
The opening venous detaining needle of this utility model, rational in infrastructure, process easy, easy to use, behind puncture vessel, can between conduit and draw point, just see blood back fast, the time of observing blood back is shortened greatly, guarantee to judge fast the puncture situation, reduce the puncture risk, guarantee puncture success rate.Can connect utensils such as syringe, transfusion device treats the patient.
Description of drawings
Fig. 1, this utility model one example structure sketch map.
A portion enlarged drawing among Fig. 2, Fig. 1.
Among the figure: 1, side opening 2, conduit 3, catheter block 4, draw point 5, draw point seat 6, exhaust joint 7, end cap 8, cutting edge.
The specific embodiment
The utility model is described in further detail in conjunction with the foregoing description accompanying drawing.
As shown in the figure, opening venous detaining needle described in the utility model, comprise conduit 2, catheter block 3, draw point 4 and needle stand 5, conduit 2 is fixed on the catheter block 3, draw point 4 is fixed on the draw point seat 5, and draw point 4 is inserted in the conduit 2, and 4 of conduit 2 and draw points are gapped, have side opening 1 near the needle point place on the draw point 4, side opening 1 is positioned at the cutting edge 8 of needle point towards a side.
The rear end of draw point seat 5 keeps original cavity, is communicated with draw point 4, and blood can flow to cavity through draw point 4, and the nursing procedure personnel of group further confirm to operate successfully.
Exhaust joint described in the utility model cooperates the back to form closed cavity with needle stand, and when blood refluxed, the intravital air in chamber can be discharged through this joint, can stop blood to be discharged simultaneously again.
In addition with the remaining needle of dosing mouth, the remaining needle of band threeway, the remaining needle of no wing structure, or the like, can continue to use the technical solution of the utility model, promptly the remaining needle of other version also can utilize the side opening technical scheme in this utility model.
Claims (3)
1, a kind of opening venous detaining needle comprises conduit, catheter block, draw point and needle stand, and conduit is fixed on the catheter block, and draw point is fixed on the draw point seat, and draw point is inserted in the conduit, it is characterized in that having side opening near the needle point place on the draw point.
2, opening venous detaining needle according to claim 1 is characterized in that side opening is positioned at the cutting edge of needle point towards a side.
3, opening venous detaining needle according to claim 1 and 2 is characterized in that between conduit and draw point gapped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920025759XU CN201404537Y (en) | 2009-05-22 | 2009-05-22 | Open type venous indwelling needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920025759XU CN201404537Y (en) | 2009-05-22 | 2009-05-22 | Open type venous indwelling needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201404537Y true CN201404537Y (en) | 2010-02-17 |
Family
ID=41675454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920025759XU Expired - Fee Related CN201404537Y (en) | 2009-05-22 | 2009-05-22 | Open type venous indwelling needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201404537Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102933242A (en) * | 2010-06-04 | 2013-02-13 | 株式会社Jms | Indwelling needle device |
| CN104771153A (en) * | 2015-01-28 | 2015-07-15 | 吴洪磊 | Invasive arterial blood pressure monitoring device |
| CN104771208A (en) * | 2015-01-28 | 2015-07-15 | 吴洪磊 | Artery puncture needle special for invasive arterial pressure monitoring |
-
2009
- 2009-05-22 CN CN200920025759XU patent/CN201404537Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102933242A (en) * | 2010-06-04 | 2013-02-13 | 株式会社Jms | Indwelling needle device |
| CN102933242B (en) * | 2010-06-04 | 2015-02-25 | 株式会社Jms | Indwelling needle device |
| CN104771153A (en) * | 2015-01-28 | 2015-07-15 | 吴洪磊 | Invasive arterial blood pressure monitoring device |
| CN104771208A (en) * | 2015-01-28 | 2015-07-15 | 吴洪磊 | Artery puncture needle special for invasive arterial pressure monitoring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100217 Termination date: 20130522 |