CN1056635A - Low-vulnus syringe needle - Google Patents
Low-vulnus syringe needle Download PDFInfo
- Publication number
- CN1056635A CN1056635A CN 90103684 CN90103684A CN1056635A CN 1056635 A CN1056635 A CN 1056635A CN 90103684 CN90103684 CN 90103684 CN 90103684 A CN90103684 A CN 90103684A CN 1056635 A CN1056635 A CN 1056635A
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- CN
- China
- Prior art keywords
- syringe needle
- needle
- low
- tip portion
- tissue
- 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.)
- Pending
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The present normal injection syringe needle that uses, tip portion is the inclined-plane, and both sides of the edge are sharp keen, produce " cutting " effect during penetrate tissue, and life-time service is bigger to tissue injury, causes the hardening of cicatrix repair tissue.The tip portion profile needlelike of " low-wound syringe needle " because of no sharpened edge, passes when organizing more even to the power that spreads all around, so to organizing mainly is to produce " separation " effect, rather than " cutting ", has reduced damage, because of the cicatrix reparation is few, favourable follow-up injection and drug absorption.Popularizing value is arranged.
Description
The invention belongs to medical apparatus and instruments commonly used.
The normal injection syringe needle of extensive use at present is that tip portion is the sharp keen bevel needles in both sides of the edge, inclined-plane, and it can produce " cutting " effect when penetrate tissue, cause more tissue injury, cause the cicatrix reparation, long term injections, can form many cicatrixes in the tissue, organize hardening, make later injections difficult, also unfavorable drug absorption, reduced curative effect of medication, and rest on the medicine that difficult local absorbs, because local drug concentration is higher, can further promote local tissue damage.
The syringe needle that the purpose of this invention is to provide a kind of novel minimizing tissue injury.
" low-wound syringe needle " is " the garden shape syringe needle " of needle point profile class needlelike sample, the open design of pin is in the side near needle point, opening becomes garden shape or bulky garden shape, can have a microflute to extend (Fig. 1) to needle point, guarantees that the other material of opening has enough intensity to support needle point.The profile of this needle tip can resemble sewing-needle (Fig. 1) fully, also can still be exactly a skew back face, the syringe needle that opposite side is straight, but needle point and near the part of needle point keep garden shape or do not have sharpened edge near figure (Fig. 2).
" low-wound syringe needle " is because the part of needle point and close needle point is garden shape, so when it passes when organizing, Kuo San power is more even towards periphery, the effect that tissue is produced more is " separation " rather than " cutting ", tissue injury will be low weight like this, even when this pin passes the nerve tract road accidentally, also its destructive power can be reduced to bottom line.Long-term local injection benefit is especially obvious, and experiment confirms to this.So this novel syringe needle has its desirability.
Realize technical scheme of the present invention:
The appearance of tip portion needs under the uniform temperature condition, adopts the method shaping of the catheter of syringe needle being pressed the certain angle extruding along a side, shears or grind off the part that is extruded then, and opening is ground off simultaneously.The angle of selecting during extruding is advisable at 10 °-30 ° with the cone angle of needle point cone.Also the both sides sharpened edge of the inclined-plane injection needle of present widespread usage can be ground off, become simple and easy low-wound syringe needle.
Claims (5)
1, " low-wound syringe needle " be needle point and near tip portion be garden shape, near the cone-shaped syringe needle of garden shape, or the syringe needle of other no sharpened edge.This is the feature of this syringe needle.
2, the needle tip opening can have a microflute to extend to needle point.
3, the appearance of tip portion needs under feasible temperature conditions, adopts the method that the catheter of syringe needle is pressed the certain angle extruding along a side to be shaped, and shears or grind off the part that is extruded then.
4, when extruding the angle selected, with the cone angle of needle point cone between 3 °～70 °.
5, entry needle both sides, the inclined-plane sharpened edge that will generally use at present grinds off, and can become simple and easy low-wound syringe needle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90103684 CN1056635A (en) | 1990-05-23 | 1990-05-23 | Low-vulnus syringe needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90103684 CN1056635A (en) | 1990-05-23 | 1990-05-23 | Low-vulnus syringe needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1056635A true CN1056635A (en) | 1991-12-04 |
Family
ID=4878201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90103684 Pending CN1056635A (en) | 1990-05-23 | 1990-05-23 | Low-vulnus syringe needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1056635A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100421741C (en) * | 2002-03-29 | 2008-10-01 | 泰尔茂株式会社 | Injection needle |
| CN102764468A (en) * | 2012-08-10 | 2012-11-07 | 陈京江 | Low damage syringe needle |
| CN106456139A (en) * | 2014-02-18 | 2017-02-22 | 麻省理工学院 | Tissue collection needle |
| CN110368129A (en) * | 2019-08-08 | 2019-10-25 | 汪晓晖 | Dental sponges shape flexible material hemostasis row's gum device |
-
1990
- 1990-05-23 CN CN 90103684 patent/CN1056635A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100421741C (en) * | 2002-03-29 | 2008-10-01 | 泰尔茂株式会社 | Injection needle |
| CN102764468A (en) * | 2012-08-10 | 2012-11-07 | 陈京江 | Low damage syringe needle |
| CN106456139A (en) * | 2014-02-18 | 2017-02-22 | 麻省理工学院 | Tissue collection needle |
| CN110368129A (en) * | 2019-08-08 | 2019-10-25 | 汪晓晖 | Dental sponges shape flexible material hemostasis row's gum device |
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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 | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |