JPH02198797A - Hole punching and machining method for resin tube - Google Patents
Hole punching and machining method for resin tubeInfo
- Publication number
- JPH02198797A JPH02198797A JP1604589A JP1604589A JPH02198797A JP H02198797 A JPH02198797 A JP H02198797A JP 1604589 A JP1604589 A JP 1604589A JP 1604589 A JP1604589 A JP 1604589A JP H02198797 A JPH02198797 A JP H02198797A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- resin tube
- hole
- tube
- electrodes
- 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
Links
- 239000011347 resin Substances 0.000 title claims abstract description 55
- 229920005989 resin Polymers 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims description 14
- 238000004080 punching Methods 0.000 title abstract description 9
- 238000003754 machining Methods 0.000 title 1
- 238000005553 drilling Methods 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 abstract description 9
- 238000010438 heat treatment Methods 0.000 abstract description 7
- 239000007772 electrode material Substances 0.000 description 3
- 239000003814 drug Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 241000792859 Enema Species 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000002872 contrast media Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 229940095399 enema Drugs 0.000 description 1
- 239000007920 enema Substances 0.000 description 1
- 229940091142 glycerin enema Drugs 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、高周波誘電加熱による樹脂チューブの穴開加
工方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method of drilling holes in a resin tube by high-frequency dielectric heating.
（従来の技術）
従来より、体内に薬剤注入を行なうためにカテーテルと
呼ばれる樹脂チューブが使用されている。(Prior Art) Conventionally, resin tubes called catheters have been used to inject drugs into the body.
この樹脂チューブは、第３図に示すように、先端が半球
形状に形成された軟質塩化ビニル等の樹脂チューブ２０
からなり、その先端部に液注入のための透孔２２を有し
ている。As shown in FIG. 3, this resin tube consists of a resin tube 20 made of soft vinyl chloride or the like and having a hemispherical tip.
It has a through hole 22 at its tip for liquid injection.
ところで、従来このような樹脂チューブ２００大開加工
方法としては、樹脂チューブ２０内に芯金を挿入し、樹
脂チューブ２０の外側に配設した刃を芯金側へ移動する
ことにより、樹脂チューブ２０の周面の一部を刃の先端
で打ち抜く、いわゆる打ち抜き法が採用されている。By the way, as a conventional method for wide-opening the resin tube 200, a core metal is inserted into the resin tube 20, and a blade disposed on the outside of the resin tube 20 is moved toward the core metal, thereby opening the resin tube 20. A so-called punching method is used, in which a part of the circumferential surface is punched out using the tip of a blade.
（発明が解決しようとする課題）
このような打ち抜きによる穴開加工方法では、機械的に
樹脂チューブ２０の一部を剪断するものであるから、打
ち抜かれた透孔２２の周縁２４にパリが生じ易く、また
周縁２４が鋭利に仕上ることは避けられなかった。そし
て、このような樹脂チューブが、例えば医薬用チューブ
に使用されると、チューブ内に残った上記パリが体内へ
侵入するおそれがあって危険であると共に、樹脂チュー
ブの外面に形成された鋭利な周縁２４がチューブ外に露
出するので手で触れると痛く、また体内挿入に際しては
組織を傷つける危険もあった。(Problem to be Solved by the Invention) In this hole-drilling method by punching, a part of the resin tube 20 is mechanically sheared, so that a burr is generated on the periphery 24 of the punched through hole 22. Moreover, it was inevitable that the peripheral edge 24 would be finished sharply. When such a resin tube is used, for example, as a medical tube, it is dangerous because the particles remaining inside the tube may enter the body, and the sharp edges formed on the outer surface of the resin tube are dangerous. Since the peripheral edge 24 is exposed outside the tube, it is painful to touch, and there is also a risk of damaging tissue when inserted into the body.
本発明は、上記従来の問題を解決するものであリ、その
目的とするところは、パリが生じることがなく、また周
縁部が鋭利に仕上がることなく透孔を形成し得る樹脂チ
ューブの穴開加工方法を提供することにある。The present invention is intended to solve the above-mentioned conventional problems, and its purpose is to form a hole in a resin tube so that a through hole can be formed without forming a burr or having a sharp peripheral edge. The purpose is to provide a processing method.
（課題を解決するための手段）
本発明の穴開加工方法は、樹脂チューブ内に挿入された
第１電極と、樹脂チューブの外側に配設された第２電極
との間に高周波電圧を印加し、第１電極と第２電極とで
挟まれた樹脂チューブの電極間部分を誘電加熱すると共
に、誘電加熱部分を第２電極の先端部で押し抜いてなり
、そのことにより上記目的が達成される。(Means for Solving the Problems) The hole drilling method of the present invention applies a high frequency voltage between a first electrode inserted into a resin tube and a second electrode arranged outside the resin tube. The interelectrode portion of the resin tube sandwiched between the first electrode and the second electrode is dielectrically heated, and the dielectrically heated portion is pushed out by the tip of the second electrode, thereby achieving the above object. Ru.
（作用）
第１電極と第２電極とで挟まれた樹脂チューブの電極間
部分が誘電加熱により溶融し、この樹脂の溶融状態の時
に樹脂チューブが押し抜かれるので、穴開けの際に、従
来のように樹脂チューブに強い剪断力が作用せず、押し
抜きによって形成された透孔の周縁部は鋭利にならず、
またパリも生じない。しかも、樹脂チューブを加熱する
ための第２電極をそのまま押し抜き部材として使用する
ことができるので、加熱から押し抜きまでを一工程で簡
単に行なうことができる。(Function) The interelectrode portion of the resin tube sandwiched between the first electrode and the second electrode is melted by dielectric heating, and when the resin is in a molten state, the resin tube is pushed out. Because strong shearing force does not act on the resin tube, the peripheral edge of the hole formed by punching does not become sharp.
Nor will Paris arise. Moreover, since the second electrode for heating the resin tube can be used as a punching member as it is, the process from heating to punching can be easily performed in one step.
（実施例） 以下に本発明をその実施例に基づいて詳細に説明する。(Example) The present invention will be explained in detail below based on examples thereof.
本発明の穴開加工方法では、先ず、第１図に示すように
、棒状の第１電極１０ａの外側に、加工対象物である樹
脂チューブ２０を嵌め込む。第１電極１０ａは、ステン
レス綱、銅合金等の汎用電極材からなり、その外径は、
電極外周面が樹脂チューブ２０の内周面に略密着し得る
程度に設定されている。In the hole-drilling method of the present invention, first, as shown in FIG. 1, a resin tube 20, which is a workpiece, is fitted onto the outside of the rod-shaped first electrode 10a. The first electrode 10a is made of a general-purpose electrode material such as stainless steel or copper alloy, and has an outer diameter of
The electrode outer circumferential surface is set to be in close contact with the inner circumferential surface of the resin tube 20.
樹脂チューブ２０は、カテーテル用で、その先端部は半
球形状に形成されて閉塞され、基端部は開放している。The resin tube 20 is used for a catheter, and its distal end is formed into a hemispherical shape and is closed, and its proximal end is open.
樹脂チューブ２０が嵌め込まれた第１電極１０ａは、そ
の先端が樹脂チューブ２０の半球形状先端部に達するよ
う挿入され、第１電極１０ａの基端部は樹脂チューブ２
０外に露出している。The first electrode 10a into which the resin tube 20 is fitted is inserted so that its tip reaches the hemispherical tip of the resin tube 20, and the base end of the first electrode 10a is inserted into the resin tube 2.
0 Exposed outside.
第１電極１０ａへの樹脂チューブ２０の嵌め込みが終了
すると、第１電極１０ａの先端部の側方位置において、
穴開は位置に配設された棒状の第２電極１０ｂを樹脂チ
ューブ２０側へ移動させる。この第２電極１０ｂは、第
１電極１０ａと同様の汎用電極材からなり、第２電極１
０ｂの長手方向に対して直交するよう配設され、油圧プ
レス等の駆動装置によって第１電極１０ａの外側面に当
接離間駆動するように構成されている。第２電極１０ｂ
の先＃ｊ部１０ｃは、樹脂チューブ２０に対する加工刃
を兼ね、この品分１０ｃの外径は、樹脂チューブ２０に
形成する透孔の内径に略一致している。また、その先端
面は、第１電極１０ａの外周面に密着し得るように凹曲
面で形成されている。When the fitting of the resin tube 20 into the first electrode 10a is completed, at the side position of the tip of the first electrode 10a,
To make the hole, the rod-shaped second electrode 10b placed at the position is moved toward the resin tube 20 side. This second electrode 10b is made of the same general-purpose electrode material as the first electrode 10a, and is made of the same general-purpose electrode material as the first electrode 10a.
0b, and is configured to be driven into contact with and away from the outer surface of the first electrode 10a by a driving device such as a hydraulic press. Second electrode 10b
The tip #j portion 10c also serves as a processing blade for the resin tube 20, and the outer diameter of this item 10c substantially matches the inner diameter of the through hole formed in the resin tube 20. Moreover, the tip end surface is formed into a concave curved surface so that it can be brought into close contact with the outer circumferential surface of the first electrode 10a.
第２図（ａ）に示すように、第１電極１０ａと第２電極
１０ｂとの間に電源３０にて高周波電圧を印加した状態
で、第２電極ｆｏｂの先端部１０ｃを樹脂チューブ２Ｇ
の外周面に近づけると、第１電極１０ａと第２電極１０
ｂとの間隙部分に高周波互番電界が形成される結果、こ
の間隙部に位置する樹脂チューブ２０の電極間部分２１
は誘電加熱により短時間（通常数秒）で軟化して溶融に
至る。ここで、電源３０は、汎用の高周波電源で、高周
波発振管を内蔵しており、その出力および発振周波数は
、樹脂チューブ２０が効率よく誘電加熱されるように、
樹脂チューブ２０の材質、肉厚等に応じて決定されてい
る。As shown in FIG. 2(a), while a high frequency voltage is applied between the first electrode 10a and the second electrode 10b by the power source 30, the tip 10c of the second electrode fob is connected to the resin tube 2G.
When brought close to the outer peripheral surface of the first electrode 10a and the second electrode 10
As a result of the high frequency alternating electric field being formed in the gap between
is softened and melted in a short time (usually a few seconds) by dielectric heating. Here, the power source 30 is a general-purpose high-frequency power source that has a built-in high-frequency oscillation tube, and its output and oscillation frequency are set such that the resin tube 20 is dielectrically heated efficiently.
It is determined depending on the material, wall thickness, etc. of the resin tube 20.
誘電加熱によって樹脂チューブ２０の電極間部分２１が
溶融した後、第２電極１０ｂをふたたび降下させると共
に電源３０をＯＦＦにし、その先端部１０ｃを第１電極
１０ａの外周面に密着させる。この操作により、第２図
（６）に示すように、溶融した樹脂チューブ２０の電極
間部分２１が排除され、この部分に透孔２２が形成され
る。溶融材料が固化した後、第２図（Ｃ）に示すように
、第２電極１０ｂを第１電極１０ａから離間させて次の
樹脂チューブ２０の穴開加工に備える。After the interelectrode portion 21 of the resin tube 20 is melted by dielectric heating, the second electrode 10b is lowered again, the power source 30 is turned off, and its tip 10c is brought into close contact with the outer peripheral surface of the first electrode 10a. By this operation, as shown in FIG. 2(6), the interelectrode portion 21 of the melted resin tube 20 is removed, and a through hole 22 is formed in this portion. After the molten material has solidified, the second electrode 10b is separated from the first electrode 10a to prepare for the next drilling process of the resin tube 20, as shown in FIG. 2(C).
このように樹脂チューブ２０の溶融と同時に第２電極１
０ｂを押し込むことによって透孔２２を開設しているの
で、透孔２２周縁部は表面が滑らかとなり、手で触れて
も痛くはなく、またパリを生じることもない。さらに、
第２電極１０ｂが押し抜き刃を兼ねているので、実質的
には第２電極１０ｂの往復駆動による一工程で作業を終
えることができ、自動化も容易で装置の構成を簡略化で
きる。In this way, the second electrode 1 is melted at the same time as the resin tube 20 is melted.
Since the through-hole 22 is opened by pushing in the through-hole 22, the surface of the peripheral edge of the through-hole 22 is smooth and does not hurt when touched with the hand, and does not cause any cracks. moreover,
Since the second electrode 10b also serves as a punching blade, the work can be substantially completed in one step by reciprocating the second electrode 10b, and automation is easy and the configuration of the device can be simplified.
本発明の穴開加工方法は、上記実施例で述べたカテーテ
ルに限定するものではなく、これ以外にも例えば造影剤
注入容器の挿入ノズル、グリセリン浣腸容器や薬物浣腸
容器の挿入ノズルといった医療用樹脂チューブに適用で
き、更に医療用以外の樹脂チューブに対しても適用可能
である。The hole drilling method of the present invention is not limited to the catheter described in the above embodiments, but can also be applied to medical resins such as the insertion nozzle of a contrast medium injection container, the insertion nozzle of a glycerin enema container, and a drug enema container. It can be applied to tubes, and can also be applied to resin tubes other than medical ones.
また、上記実施例では、樹脂チューブに１個の透孔を開
設するのみとなっているが、第１電極の周囲に複数の第
２電極を配設することにより、複数個の透孔を同時に開
設することもできる。更に、第２電極は中空に形成して
もよい。また、本発明の穴開加工方法は、先端が閉塞さ
れた樹脂チューブの先端面に穴開けを行なう場合にも適
用できる。In addition, in the above embodiment, only one through hole is opened in the resin tube, but by arranging a plurality of second electrodes around the first electrode, multiple through holes can be opened at the same time. You can also open one. Furthermore, the second electrode may be formed hollow. Further, the drilling method of the present invention can also be applied to the case where a hole is to be drilled in the distal end surface of a resin tube whose distal end is closed.
（発明の効果）
本発明の樹脂チューブの穴開加工方法は、このように、
樹脂チューブに開設される透孔周縁に鋭利な打抜き跡を
形成したり、パリを生じることがない。従って、取り扱
いが容易で安全性に優れた穴開樹脂チューブを製造し得
、その商品価値を高める効果がある。しかも、このよう
な透孔が一工程で形成でき、装置構成も簡単であって、
経済性に優れている。(Effects of the Invention) The method for drilling holes in a resin tube of the present invention is as follows:
There will be no sharp punching marks or cracks on the periphery of the through hole in the resin tube. Therefore, a perforated resin tube that is easy to handle and has excellent safety can be manufactured, which has the effect of increasing its commercial value. Moreover, such a through hole can be formed in one step, and the equipment configuration is simple.
Excellent economy.
第１図は本発明の穴開加工方法の一実施例を示す模式図
、第２図（ａ）〜（Ｃ）はその工程を細分して示した要
部拡大断面図、第３図はカテーテルの形状を示す要部拡
大斜視図である。
１０ａ・・・第１電極、１０ｂ・・・第２電極、２０・
・・樹脂チューブ、３０・・・電源。
以上FIG. 1 is a schematic diagram showing an embodiment of the hole drilling method of the present invention, FIGS. 2(a) to (C) are enlarged sectional views of essential parts showing the process in detail, and FIG. 3 is a catheter FIG. 10a...first electrode, 10b...second electrode, 20.
...Resin tube, 30...Power supply. that's all
Claims (1)
ーブの外側に配設された第２電極との間に高周波電圧を
印加し、第１電極と第２電極とで挟まれた樹脂チューブ
の電極間部分を誘電加熱すると共に、誘電加熱部分を第
２電極の先端部で押し抜く樹脂チューブの穴開加工方法
。1. A high frequency voltage is applied between the first electrode inserted into the resin tube and the second electrode arranged outside the resin tube, and the resin tube is sandwiched between the first electrode and the second electrode. A method of drilling a hole in a resin tube, which dielectrically heats the part between the electrodes and punches out the dielectrically heated part with the tip of a second electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1604589A JPH02198797A (en) | 1989-01-24 | 1989-01-24 | Hole punching and machining method for resin tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1604589A JPH02198797A (en) | 1989-01-24 | 1989-01-24 | Hole punching and machining method for resin tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02198797A true JPH02198797A (en) | 1990-08-07 |
Family
ID=11905602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1604589A Pending JPH02198797A (en) | 1989-01-24 | 1989-01-24 | Hole punching and machining method for resin tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02198797A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0531103U (en) * | 1991-09-30 | 1993-04-23 | 東芝硝子株式会社 | Glass reflector |
| US6204070B1 (en) | 1997-12-27 | 2001-03-20 | Hyundai Electronics Industries Co., Ltd. | Method for manufacturing ferroelectric capacitor |
-
1989
- 1989-01-24 JP JP1604589A patent/JPH02198797A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0531103U (en) * | 1991-09-30 | 1993-04-23 | 東芝硝子株式会社 | Glass reflector |
| JP2568541Y2 (en) * | 1991-09-30 | 1998-04-15 | 東芝硝子株式会社 | Glass reflector |
| US6204070B1 (en) | 1997-12-27 | 2001-03-20 | Hyundai Electronics Industries Co., Ltd. | Method for manufacturing ferroelectric capacitor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4100393A (en) | Method for making a cannula using a laser and the cannula made thereby | |
| KR100515106B1 (en) | Catheter tip mold and cut process | |
| EP1900385A1 (en) | A disposable needle for syringes and infusions and the manufacture thereof | |
| US5736085A (en) | Catheter beveling and die cut process | |
| GB1471161A (en) | Method of making a catheter with luer lock means | |
| CN105530979A (en) | Medical hollow needle assembly and method for manufacturing hollow needle | |
| US20030127494A1 (en) | Metal tubular body and manufacturing method thereof | |
| US3633580A (en) | Hypodermic needle | |
| JP2008011867A (en) | Dilator, method of manufacturing dilator, and sheath introducer | |
| EP0827757B1 (en) | Flashless catheter beveling process | |
| JPH02198797A (en) | Hole punching and machining method for resin tube | |
| US6585759B1 (en) | Method and apparatus for manufacturing medical support devices | |
| JP3838673B2 (en) | Perforated catheter manufacturing device | |
| JP4592061B2 (en) | Injection needle, injection needle manufacturing method, and injection needle manufacturing apparatus | |
| JP2004042207A (en) | Boring method and boring processing device of flexible tube | |
| KR101725909B1 (en) | Manufacture Method of Surgical Needle, and Sugical Needle Prepared thereby | |
| JP2002079498A (en) | Punching device for tube | |
| JPH07121280B2 (en) | Manufacturing method of indwelling needle | |
| JPS6237679Y2 (en) | ||
| JP3317726B2 (en) | Method for producing perforated catheter or tube | |
| JPS609825B2 (en) | Catheter manufacturing method | |
| JP3324109B2 (en) | How to form the tip of the indwelling needle | |
| JPH08173504A (en) | Acupuncture needle | |
| AT411012B (en) | Vein stripper for high frequency surgical applications, has two ring shaped electrodes arranged in neighboring disposition in peripheral zone of coagulation and cutting instrument | |
| JPH06343667A (en) | Processing method and device for used injection needle and acupuncture needle |