JPS6039386B2 - Method for manufacturing injection needles - Google Patents
Method for manufacturing injection needlesInfo
- Publication number
- JPS6039386B2 JPS6039386B2 JP52005423A JP542377A JPS6039386B2 JP S6039386 B2 JPS6039386 B2 JP S6039386B2 JP 52005423 A JP52005423 A JP 52005423A JP 542377 A JP542377 A JP 542377A JP S6039386 B2 JPS6039386 B2 JP S6039386B2
- Authority
- JP
- Japan
- Prior art keywords
- needle
- tip
- injection needles
- tube
- manufacturing injection
- 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
Links
Description
【発明の詳細な説明】
本発明は注射針として使用される金属紬管に於て、刃先
部分を形成される先端部周辺に於て、従来にない新しい
形状を形成させてなる注射針を提供するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a metal pongee tube used as a hypodermic needle, in which a new, unprecedented shape is formed around the distal end where the cutting edge is formed. It is something to do.
従来は注射針用紬管は所定のゲージ寸法の細菅を所定の
寸法に切断してその先端部分に刃先を形成させて、他の
末端部に針基部となして来た。Conventionally, a pongee tube for a hypodermic needle has been made by cutting a narrow tube of a predetermined gauge size into a predetermined size, forming a cutting edge at the tip thereof, and forming a needle base at the other end.
したがって両端部とも切断砥石にて切断面を有している
。而して刃先部分を構成する刃先形状は砥石等による研
削が施されている。本発明では注射針の刺適する部分は
可能なかぎり細い径であって針体部は規格の径である事
が望ましいことに着眼してこの点に留意して発明された
ものであって他にも後記のような諸利点を併せ有するも
のである。Therefore, both ends have surfaces cut by a cutting grindstone. The shape of the cutting edge constituting the cutting edge portion is ground using a grindstone or the like. The present invention has been developed with this in mind, focusing on the fact that it is desirable that the part of the injection needle that is suitable for insertion has the smallest diameter possible, and that the needle body has the standard diameter. It also has various advantages as described below.
滋に本発明の詳細を一具体的実施例によって説明すれば
、第１図は注射用細管の外観形状図であり、１は細管部
であって注射針の針体部を構成するものである。To explain the details of the present invention in detail with reference to a specific example, FIG. 1 is a diagram showing the external appearance of a thin tube for injection, and numeral 1 indicates a thin tube portion that constitutes the needle body of the injection needle. .
２，２′はその両端末部であって切断面である。Reference numerals 2 and 2' denote both end portions thereof, which are cut surfaces.
これを第２図で示す加工状態図で示すように３，３′の
チャックでもつて両端末部を相互に引張り、同時に４の
熱放射装置によって１の針体部になる細管の中央部１′
を加熱する。第３図は加熱して引張り遂に被断ごせた状
況の１の形状図であって、被断部は１″で示すように先
端は細く減摩されている。第４図、第５図は加熱の範囲
、強度と引張力の増減によって１″の径の大つ・とその
１の外径までのテーパ一角度ｌａ，ｌａ′の差異を示す
ものである。このように何等砥石等によって切断する必
要がなく任意の位層で破断できしかもその被断後の形状
を所望にすることは加熱部分、加熱方法、引張り力の増
減によって求めることができる。As shown in the machining state diagram shown in Fig. 2, both end portions are pulled together using chucks 3 and 3', and at the same time, the central portion 1' of the thin tube becomes the needle body portion 1 using the heat radiating device 4.
heat up. Fig. 3 is a diagram of the shape of 1 after it has been heated and pulled and finally broken, and the cut part has a thin tip with reduced friction as shown by 1''. Figs. 4 and 5. shows the difference in the diameter of 1" and the taper angle la, la' to the outer diameter of 1" depending on the range of heating, increase or decrease of strength and tensile force. In this way, it is not necessary to cut with any grindstone or the like, and it is possible to break at any layer, and the desired shape after breaking can be determined by changing the heated portion, heating method, and increase/decrease of the tensile force.
切断砥石を使用しないことによって、切断面のバリが存
在しない。またそのとき生じるスケールが針体部を汚す
ことかない。また被断したところはｌａ，ｌａ′のよう
なテーパ角度を有しているため刺通の際スムースに行う
ことが出来る等の利点を有し、かつ破断の際与える熱に
よってはテンパー処理のように硬化性質も有する場合も
あるので効果がある。さらに熱を与える際には材質がス
テンレスであるときは無酸イけ伏態または還元気体中の
ふん圏気炉中で作業すれば品質を変質させることはない
。By not using a cutting wheel, there are no burrs on the cutting surface. Also, the scale generated at that time does not stain the needle body. In addition, since the broken part has a taper angle such as la and la', it has the advantage of being able to be penetrated smoothly. It is effective because it may also have hardening properties. Furthermore, when applying heat, if the material is stainless steel, the quality will not change if the work is done in an acid-free immersion state or in a fecal furnace in a reducing gas.
時によって従釆曲がりを有する細菅は不良であって短い
ものを直管にすることは至難であったがこの方法ではこ
の破断のさし、に両端のチャックを相互にねじるように
しながら引張ることによって直管が得られる。従って従
来使用不能とした細菅もこの方法で破断ごせれば直管に
なって使用耐え得る形状とすることができるという従来
考えられなかった効果をも併せ有するものである。In some cases, narrow tubes with curved tails are defective, and it is extremely difficult to make a short tube into a straight tube, but with this method, the chucks at both ends can be pulled at the point of the break while twisting them mutually. A straight pipe can be obtained by Therefore, if a narrow tube that was conventionally unusable can be broken by this method, it can be made into a straight pipe that can be used, which is an effect that was previously unimaginable.
第１図、紬管の外観形状図、第２図、本発明の一実施例
の作業状況図、第３図、第４図、第５図、本発明の破断
形状図。
１…・・・細管本体、２，２′…・・・両側端部、３，
３′・・・・・・チャック、４・・・・・・熱放射装置
、１′・・・…加熱部分、１″・・・・・・破断部分、
ｌａ，ｌａ′・・・・・・ナーパ一部。
第１図
第２図
第３図
第４図
第５図FIG. 1 is an external shape diagram of a pongee pipe; FIG. 2 is a work situation diagram of an embodiment of the present invention; FIGS. 3, 4, and 5 are diagrams of a broken shape of the present invention. 1... Thin tube body, 2, 2'... Both ends, 3,
3'...Chuck, 4...Heat radiation device, 1'...Heating part, 1''...Broken part,
la, la'... Part of Napa. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5
Claims (1)
様に軸方向に引張りを与えることによつて先端刃先部分
がテーパ角度を有し針体部の径に比して減径されている
注射針用金属細管の製造方法。1. By applying tension in the axial direction as well as heating to the tip of the thin tube used in the injection needle, the tip of the tip has a tapered angle and is reduced in diameter compared to the diameter of the needle body. A method for manufacturing a metal capillary tube for a hypodermic needle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52005423A JPS6039386B2 (en) | 1977-01-22 | 1977-01-22 | Method for manufacturing injection needles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52005423A JPS6039386B2 (en) | 1977-01-22 | 1977-01-22 | Method for manufacturing injection needles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5392587A JPS5392587A (en) | 1978-08-14 |
| JPS6039386B2 true JPS6039386B2 (en) | 1985-09-05 |
Family
ID=11610747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP52005423A Expired JPS6039386B2 (en) | 1977-01-22 | 1977-01-22 | Method for manufacturing injection needles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6039386B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01152779U (en) * | 1988-04-14 | 1989-10-20 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7076987B2 (en) * | 2004-08-05 | 2006-07-18 | Becton, Dickinson And Company | Method of producing tapered or pointed cannula |
-
1977
- 1977-01-22 JP JP52005423A patent/JPS6039386B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01152779U (en) * | 1988-04-14 | 1989-10-20 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5392587A (en) | 1978-08-14 |
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