JPH024305B2 - - Google Patents

Info

Publication number
JPH024305B2
JPH024305B2 JP58205571A JP20557183A JPH024305B2 JP H024305 B2 JPH024305 B2 JP H024305B2 JP 58205571 A JP58205571 A JP 58205571A JP 20557183 A JP20557183 A JP 20557183A JP H024305 B2 JPH024305 B2 JP H024305B2
Authority
JP
Japan
Prior art keywords
needle
mold
tube body
synthetic resin
winged
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
Application number
JP58205571A
Other languages
English (en)
Other versions
JPS60126167A (ja
Inventor
Hirotaka Shimanaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Medical Supply Corp
Original Assignee
Nippon Medical Supply Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Medical Supply Corp filed Critical Nippon Medical Supply Corp
Priority to JP58205571A priority Critical patent/JPS60126167A/ja
Priority to US06/626,612 priority patent/US4576671A/en
Publication of JPS60126167A publication Critical patent/JPS60126167A/ja
Publication of JPH024305B2 publication Critical patent/JPH024305B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/04—Dielectric heating, e.g. high-frequency welding, i.e. radio frequency welding of plastic materials having dielectric properties, e.g. PVC
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/44—Joining a heated non plastics element to a plastics element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
    • B29C66/5326—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially flat
    • B29C66/53261—Enclosing tubular articles between substantially flat elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/63—Internally supporting the article during joining
    • B29C66/636—Internally supporting the article during joining using a support which remains in the joined object
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81431—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81421—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
    • B29C66/81423—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being concave
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B29C66/83221—Joining or pressing tools reciprocating along one axis cooperating reciprocating tools, each tool reciprocating along one axis

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Description

【発明の詳細な説明】 本発明は翼付針の新規な製造法に関する。さら
に詳しくは、高速連続生産が可能で製造コストの
低い翼付針の製造法に関する。
従来、翼付針は輸液などの分野においてしばし
ば使用されているが、その製造方法としては以下
に述べる２種類の方法が一般的である。すなわち
射出成形によつて成形した翼部に針とチユーブを
接着する方法及び射出成形の工程で針を金型にセ
ツトして翼部の成形と同時に針を固定し、次いで
チユーブを接着する方法である。しかしながら、
これらの方法にはいずれも射出成形工程や接着剤
による接着工程が含まれているため、高速連続生
産には適さない。すなわち、射出成形においては
成形サイクルを20秒以下にすることは実質的に困
難であり、また工程の一部に射出成形工程が含ま
れている場合には、全体を自動化することが困難
である。したがつて製造コストの低減に限界があ
つた。さらに射出成形には多額の設備投資が必要
であり、この点でも従来の方法はコスト的に不利
であつた。
本発明者は高周波加熱を利用した成形法を採用
することにより、従来技術の有するこれらの問題
点を解決し得ることを見出し、特願昭58−123646
号として先に特許出願を行なつた。そしてかかる
技術についてさらに検討を進めた結果、針を金型
にセツトする際に特定の位置関係にこれらを保持
した場合にのみ良好な製品が得られることを見い
出し、本発明に到達した。
すなわち本発明は、医療用針の基部を挿入した
合成樹脂製チユーブ体と翼部形成用合成樹脂を金
型にセツトし、高周波電流により合成樹脂を金型
中で加熱して翼部を形成せしめると共に針及びチ
ユーブ体と一体化させて翼付針を製造するに際し
針の基端部を金型側面よりも外側に位置させて高
周波用加熱を行なうことを特徴とする翼付針の製
造法である。
以下、本発明を図面に基づいて説明する。第１
図は本発明の一実施例において、成形前の針、チ
ユーブ体、翼部形成材料及び金型の配置状態を示
す斜視図である。図に示すようにチユーブ体２の
両側に翼部形成材料である合成樹脂製シート３，
３′を配置し、金型４，４′で両側より挾む。第２
図は成形直前における針１、チユーブ体２、シー
ト３及び金型４の状態を示す図であり、シート
３′及び金型４′は省略してある。図に示すよう
に、針１の基端部１１は金型４の側面４１よりも
外側に位置させる。このように位置させて高周波
加熱を行うことにより、良好な翼付針を能率よく
製造することができる。これに対して針の基端部
を金型内に位置させると、高周波加熱を実施した
ときにチユーブ体２が変形したり閉塞し、実用に
耐える製品を得ることができない。針基端部と金
型側面との距離は特に限定されるものではない
が、0.5〜10mm程度が好ましく使用される。針、
チユーブ体、シートを金型で両側より挾んだ後、
金型を電極として高周波電流を流すと、誘電損失
によりシート及びチユーブ体が加熱されて軟化及
至溶融して翼部が形成されると同時に翼部とチユ
ーブ体とが一体化する。針とチユーブ体との固定
は、翼部形成前後あるいは翼部形成時に針を一方
の電極としてチユーブ体を高周波加熱することに
より達成することができる。このときにも、針の
基端部はもう一方の電極となる金型の側面よりも
外側に位置させることが、チユーブ体を変形させ
たり閉塞させたりしないために好ましい。
第３図は、このようにして得られた翼付針の一
実施例を示す正面図である。
上述の例においては翼部形成材料として、合成
樹脂シートを２枚使用したが、１枚だけを使用し
てもよく、シート状以外の形状であつてもよい。
また加熱により硬化可能な液状樹脂を使用するこ
ともできる。翼部形成に好ましく使用される合成
樹脂としては、ポリ塩化ビニルおよびポリウレタ
ンをあげることができる。また、チユーブ体も合
成樹脂からなるが、ポリ塩化ビニルなどが一般的
に使用される。
本発明における高周波加熱の条件は、使用する
材料の種類、大きさなどにより大きく異なるので
適宜条件を選択する。また、使用に供する針の基
部は、チユーブ体との固定強度を向上させるため
に、表面コーテイングや表面の粗面化を行つたり
溝や突起を設けてもよい。さらに、金型は１個方
式であつても多数個方式であつてもよい。
本発明においては、翼部の形成及び針とチユー
ブ体との固定がすべて高周波加熱により行われ、
接着剤による接着や射出成形などの工程がないの
で、従来の方法にくらべて成形サイクルを大幅に
短縮でき、高速化、製造コストの低減が可能とな
る。また、工程全体にわたつての全自動化が初め
て可能となり、全自動化した場合にはこれらの効
果がきわめて顕著になる。
本発明の方法は、医療用途に使用されるあらゆ
る翼付針の製造に適用することができ、特にスカ
ルプ・ベインと呼ばれる翼付静注針の製造に好適
である。
【図面の簡単な説明】
第１図は、本発明の一実施例において、翼部を
形成せしめる前の針、チユーブ体、シート及び金
型の配置状態を示す斜視図であり、第２図は、成
形直前における針と金型との位置関係を示す斜視
図である。第３図は本発明の方法により製造され
た翼付針の一実施例を示す正面図である。 １……針、２……チユーブ体、３，３′……合
成樹脂シート、４，４′……金型、５……翼部、
１１……針基端部、４１……金型側面。

Claims (1)

  1. 【特許請求の範囲】 １ 医療用針の基部を挿入した合成樹脂製チユー
    ブ体と翼部形成用合成樹脂を金型にセツトし、高
    周波電流により合成樹脂を金型中で加熱して翼部
    を形成せしめると共に針及びチユーブ体と一体化
    させて翼付針を製造するに際し、針の基端部を金
    型側面よりも外側に位置させて高周波加熱を行な
    うことを特徴とする翼付針の製造法。 ２ チユーブ体および翼部形成材料がポリ塩化ビ
    ニルである特許請求の範囲第１項記載の翼付針の
    製造法。
JP58205571A 1983-07-06 1983-10-31 医療用翼付針の製造法 Granted JPS60126167A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP58205571A JPS60126167A (ja) 1983-10-31 1983-10-31 医療用翼付針の製造法
US06/626,612 US4576671A (en) 1983-07-06 1984-06-29 Method of manufacturing alate medical needle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58205571A JPS60126167A (ja) 1983-10-31 1983-10-31 医療用翼付針の製造法

Publications (2)

Publication Number Publication Date
JPS60126167A JPS60126167A (ja) 1985-07-05
JPH024305B2 true JPH024305B2 (ja) 1990-01-26

Family

ID=16509092

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58205571A Granted JPS60126167A (ja) 1983-07-06 1983-10-31 医療用翼付針の製造法

Country Status (1)

Country Link
JP (1) JPS60126167A (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112004003033T5 (de) * 2004-12-21 2007-12-27 Seirin Corporation Methode zum Fixieren von Akupunkturnadel und Einführungsrohr sowie Akupunkturnadel mit Einführungsrohr

Citations (1)

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Publication number Priority date Publication date Assignee Title
JPS5299689A (en) * 1976-02-11 1977-08-20 Illinois Tool Works Injection needle cover and method of manufacturing same

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5299689A (en) * 1976-02-11 1977-08-20 Illinois Tool Works Injection needle cover and method of manufacturing same

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JPS60126167A (ja) 1985-07-05

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