JPH07121280B2 - Manufacturing method of indwelling needle - Google Patents
Manufacturing method of indwelling needleInfo
- Publication number
- JPH07121280B2 JPH07121280B2 JP63218770A JP21877088A JPH07121280B2 JP H07121280 B2 JPH07121280 B2 JP H07121280B2 JP 63218770 A JP63218770 A JP 63218770A JP 21877088 A JP21877088 A JP 21877088A JP H07121280 B2 JPH07121280 B2 JP H07121280B2
- Authority
- JP
- Japan
- Prior art keywords
- hole
- indwelling needle
- needle
- cutting edge
- lateral
- 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 - Lifetime
Links
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Description
【発明の詳細な説明】 〔発明の利用分野〕 本発明は医療機関で使用される血管留置用針の製造方法
に関する。Description: FIELD OF THE INVENTION The present invention relates to a method for manufacturing a blood vessel indwelling needle used in a medical institution.
血管内へ留置する留置針の形状でその刃先へ横孔を設け
たものがある。この横穴は血管内へ薬液を注入する場
合、その刃先からの注入だけでは充分な注入効果が得ら
れないので、その刃先以外に横穴を一又は複数個設けて
その薬液注入の効果を得ている。前記した横穴の加工
は、従前においては刃先面から横穴を形成していた。即
ち第1図〜第4図で示した様に、留置針1の刃先1aの面
の背部分へ横穴1bを加工する場合、抜き孔用雄金型2と
抜き孔用雌金型2aとを設けて、該雌金型の上に留置針1
を乗せて孔明け位置を該雌金型の抜き孔2cに合わせて
後、該雄金型2をプレスして抜き孔である横穴1bを該針
の内壁から形成しているので、その加工バリが該針の表
面に向き出て穿刺がスムーズでなかったり、その横穴1b
それ以外の個所への横穴の加工は出来なかった。There is a shape of an indwelling needle that is placed in a blood vessel and a lateral hole is provided at the blade edge. When injecting a drug solution into a blood vessel, this lateral hole cannot obtain a sufficient injection effect only by injecting it from the cutting edge, so one or more lateral holes are provided in addition to the cutting edge to obtain the effect of injecting the drug solution. . In the processing of the lateral hole described above, the lateral hole was formed from the cutting edge surface before. That is, as shown in FIGS. 1 to 4, when the lateral hole 1b is formed in the back part of the surface of the cutting edge 1a of the indwelling needle 1, a male hole die 2 and a female hole die 2a are provided. , Indwelling needle 1 on the female mold
After aligning the punching position with the punching hole 2c of the female die, the male die 2 is pressed to form the lateral hole 1b which is the punching hole from the inner wall of the needle. Sticks out to the surface of the needle and the puncture is not smooth, or the side hole 1b
It was not possible to process side holes at other points.
注射針の内径へ摺動可能に密接する抜き孔用の芯金棒状
の雌金型を挿入載置して、その雌金型の抜き孔の位置に
プレス工程で一致して上下可動する抜き孔様雄金型を位
置する様に設けて、前記注射針の任意個所に抜き孔であ
る横穴を該刃先部分の背面から加工することを特徴とし
た構成を成している。A core metal rod-shaped female die for a punching hole that slidably comes into close contact with the inner diameter of an injection needle is inserted and placed, and a punching hole that vertically moves in line with the punching hole position of the female die in the pressing process. Such a male die is provided so as to be positioned, and a lateral hole which is a punch hole is machined from the back surface of the cutting edge portion at an arbitrary position of the injection needle.
横穴1bを施す前段の留置針1(第1図)は刃先面1aの内
側から開けられて、従前の留置針1が形成(第2図、第
3図は第1図の側面断面図)される。横穴1bは、留置針
1の刃先面1aの背面の側を雌金型2aに向けて乗せて、刃
先面1aの内側から雄金型2をプレス工程で雌金型2aの抜
き孔2cに圧入して、プレス抜の孔加工がなされる(第4
図)。本発明の実施例を第5図〜第7図によって詳細に
説明する。横穴1cを形成した留置針1(第5図、第6図
は第5図の断面図)は、留置針1の任意刃先1aの部分又
は他の箇所へ自在に横穴1cを設けて形成される。該横穴
1cを任意位置に洗濯して加工できる様に、注射針1の内
径へ摺動可能に密接する抜き孔用の芯金棒状の雌金金型
2bを挿入載置する。その雌金型の抜き孔2cの位置にプレ
ス工程で一致して上下可動する抜き孔用雄金型2dを該刃
先部分の背面の側へ設けて(第7図)、留置針1の任意
個所に横穴1cの位置を洗濯して該雄金型2bがプレス工程
で横穴1cが得られる。The indwelling needle 1 (FIG. 1) at the front stage for forming the lateral hole 1b is opened from the inside of the cutting edge surface 1a to form the conventional indwelling needle 1 (FIGS. 2 and 3 are side sectional views of FIG. 1). It The horizontal hole 1b is placed with the back side of the blade surface 1a of the indwelling needle 1 facing the female die 2a, and the male die 2 is press-fitted into the hole 2c of the female die 2a from the inside of the blade surface 1a by a pressing process. Then, punching is performed for punching (4th
Figure). An embodiment of the present invention will be described in detail with reference to FIGS. The indwelling needle 1 (FIG. 5 and FIG. 6 is a cross-sectional view of FIG. 5) having the lateral hole 1c is formed by freely providing the lateral hole 1c at a portion of the arbitrary cutting edge 1a of the indwelling needle 1 or at another position. . The side hole
A female metal mold in the shape of a core bar for a hole that slidably comes into close contact with the inner diameter of the injection needle 1 so that 1c can be washed at any position and processed.
Insert 2b. A punching hole male die 2d that moves up and down in conformity with the punching step 2c of the female die in the pressing process is provided on the back side of the cutting edge portion (Fig. 7), and a horizontal hole is formed at an arbitrary position of the indwelling needle 1. The male mold 2b is washed at the position of 1c to obtain a lateral hole 1c in a pressing process.
従前の方法(第4図)では刃先面の内側方向から横穴1b
を加工していたので、加工バリが該針表面に露出した
り、留置針1の刃先1a以外の任意個所への横穴加工は留
置針1が雄金型2によって潰されてしまい出来なかった
が、前記した様に本発明の構成によって、容易に、留置
針1の表面から加工出来て品質向上を充分に得て且つ任
意の位置へ横穴1cを加工出来る等効果を有している。In the conventional method (Fig. 4), the horizontal hole 1b
Since the machining burr was exposed on the surface of the needle, or the lateral hole was machined to any position other than the cutting edge 1a of the indwelling needle 1, the indwelling needle 1 could not be crushed by the male mold 2. As described above, according to the configuration of the present invention, it is possible to easily process the surface of the indwelling needle 1 to sufficiently improve the quality and to process the lateral hole 1c at an arbitrary position.
第1図…従前の留置針の横穴が無い場合の一部外観形状
の図。第2図…従前の留置針の横穴が有る場合の一部外
観形状の図。第3図…第2図の断面図。第4図…従前の
留置針の横穴を加工する方法の一部断面形状の図。第5
図…本発明の方法によって横穴を有した留置針の一部外
観形状図。第6図…第5図の断面図。第7図…本発明の
横穴を加工する方法の一部断面図。 1……留置針。1a……刃先面。1b……従来の横穴の位
置、横穴。1c……本発明によった横穴の位置、横穴。2
……抜き孔用雄金型。2a……抜き孔用の芯金棒状の雌金
型。2b……抜き孔用雄金型2dと連動の抜き孔用雌金型。
2c……抜き孔。2d……抜き孔用の芯金棒状の雌金型2bと
連動の抜き孔用雄金型。FIG. 1 is a view of a partial external shape in the case where there is no lateral hole of a conventional indwelling needle. FIG. 2 is a partial external view showing a conventional indwelling needle having a lateral hole. FIG. 3 ... Sectional view of FIG. FIG. 4 is a partial cross-sectional view of a conventional method for processing a lateral hole of an indwelling needle. Fifth
FIG. 7 is a partial external shape diagram of an indwelling needle having a lateral hole by the method of the present invention. 6 ... Sectional view of FIG. FIG. 7: Partial cross-sectional view of the method for processing a lateral hole of the present invention. 1 ... Indwelling needle. 1a ... Blade surface. 1b: Conventional horizontal hole position, horizontal hole. 1c ... Position of lateral holes, lateral holes according to the present invention. Two
...... Male mold for punching holes. 2a: A core metal rod-shaped female die for punching holes. 2b …… Female hole die for interlocking with male hole die 2d.
2c ... hole. 2d: A male die for punching holes that interlocks with a cored bar female die 2b for punching holes.
Claims (1)
於いて、該注射針の内径へ摺動可能に密接する芯金棒状
の抜き孔用の雌金型を載置して、該雌金型を注射針の抜
き孔の位置に上下動する抜き孔用雄金型を連動一致して
設けて、前記注射針の刃先の背面を雄金型の側に向けて
配置して、前記注射針の刃先の背面の任意箇所に抜き孔
である横穴を該背面から加工することを特徴とした留置
針の製造方法。1. When forming a hole in a cutting edge portion of an injection needle, a female metal mold for a hole in the shape of a cored bar which slidably comes into close contact with the inner diameter of the injection needle is placed, and A female die is provided at the position of the hole of the injection needle so as to interlock with a male die for a punch hole, and the back surface of the tip of the injection needle is arranged toward the male die side, A method for manufacturing an indwelling needle, characterized by forming a lateral hole, which is a punched hole, at an arbitrary position on the back surface of the blade edge of the cutting edge.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63218770A JPH07121280B2 (en) | 1988-09-01 | 1988-09-01 | Manufacturing method of indwelling needle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63218770A JPH07121280B2 (en) | 1988-09-01 | 1988-09-01 | Manufacturing method of indwelling needle |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0265870A JPH0265870A (en) | 1990-03-06 |
JPH07121280B2 true JPH07121280B2 (en) | 1995-12-25 |
Family
ID=16725123
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP63218770A Expired - Lifetime JPH07121280B2 (en) | 1988-09-01 | 1988-09-01 | Manufacturing method of indwelling needle |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH07121280B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100464893C (en) * | 2001-12-27 | 2009-03-04 | 泰尔茂株式会社 | Metal pipe and its mfg. method |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3943390B2 (en) * | 2001-12-27 | 2007-07-11 | テルモ株式会社 | Metal tubular body and manufacturing method thereof |
JP2007244671A (en) | 2006-03-16 | 2007-09-27 | Fujifilm Corp | Blood collecting needle, injection needle, winged needle, test kit and blood collection kit |
WO2017141548A1 (en) * | 2016-02-18 | 2017-08-24 | テルモ株式会社 | Syringe needle and medical apparatus |
WO2020170582A1 (en) * | 2019-02-19 | 2020-08-27 | 株式会社カネカ | Drug infusion catheter |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5343992A (en) * | 1976-10-01 | 1978-04-20 | Tomizawa Seimitsukan Yuugen | Method of manufacturing injection needle |
JPS59141957A (en) * | 1983-02-04 | 1984-08-14 | テルモ株式会社 | Stay cathetel and production thereof |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5368594U (en) * | 1976-11-13 | 1978-06-08 |
-
1988
- 1988-09-01 JP JP63218770A patent/JPH07121280B2/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5343992A (en) * | 1976-10-01 | 1978-04-20 | Tomizawa Seimitsukan Yuugen | Method of manufacturing injection needle |
JPS59141957A (en) * | 1983-02-04 | 1984-08-14 | テルモ株式会社 | Stay cathetel and production thereof |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100464893C (en) * | 2001-12-27 | 2009-03-04 | 泰尔茂株式会社 | Metal pipe and its mfg. method |
Also Published As
Publication number | Publication date |
---|---|
JPH0265870A (en) | 1990-03-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPH07121280B2 (en) | Manufacturing method of indwelling needle | |
JP2701792B2 (en) | Burrless drilling method | |
JPH0376621U (en) | ||
JPS602134B2 (en) | Punching hole processing method and device | |
JPS5938854B2 (en) | How to manufacture suture needles | |
JP3306662B2 (en) | Split cannula and manufacturing method thereof | |
CN214290309U (en) | One-step punching forming die for high and low concave surfaces of pipe fitting | |
JPH021581B2 (en) | ||
JP2007196273A (en) | Forming die | |
KR0123040B1 (en) | Mold of complex bending method | |
JP2565949B2 (en) | Manufacturing method of mold insertion type electrical contact | |
JPS55156633A (en) | Punch and its production | |
JPH0227934Y2 (en) | ||
JP3085475B2 (en) | Method of manufacturing button contacts | |
JP2541985B2 (en) | Method for manufacturing connecting piece for band | |
JPS5815626A (en) | Method of forming spiral groove in the internal surface of metal pipe with small diameter | |
JPH03142030A (en) | Forming method for piston pin | |
JP2565951B2 (en) | Manufacturing method of mold insertion type electrical contact | |
JPS63216696A (en) | Manufacture of die board in trimming die | |
JPH01306028A (en) | Manufacture of metallic material with hole | |
JPS59141331A (en) | Trimming die | |
JPS6077324A (en) | Method of producing ni contact | |
JPH0235613B2 (en) | ||
JPS6178529A (en) | Forging forming method of gear component having oil groove | |
JPH07120739B2 (en) | Lead cutting method |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081225 Year of fee payment: 13 |
|
EXPY | Cancellation because of completion of term | ||
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081225 Year of fee payment: 13 |