JPH01500165A - medical syringe - Google Patents

medical syringe

Info

Publication number
JPH01500165A
JPH01500165A JP61503926A JP50392686A JPH01500165A JP H01500165 A JPH01500165 A JP H01500165A JP 61503926 A JP61503926 A JP 61503926A JP 50392686 A JP50392686 A JP 50392686A JP H01500165 A JPH01500165 A JP H01500165A
Authority
JP
Japan
Prior art keywords
needle
syringe
collar
cylinder
connecting neck
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.)
Granted
Application number
JP61503926A
Other languages
Japanese (ja)
Other versions
JPH0325183B2 (en
Inventor
ゲプレークス，ペーター
Original Assignee
アルツナイミツテル　ゲ−エムベ−ハ−　アポテ−カ　フエツタ−　ウント　コンパニ　ラ−ヴエンスブルク
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 アルツナイミツテル　ゲ−エムベ−ハ−　アポテ−カ　フエツタ−　ウント　コンパニ　ラ−ヴエンスブルク filed Critical アルツナイミツテル　ゲ−エムベ−ハ−　アポテ−カ　フエツタ−　ウント　コンパニ　ラ−ヴエンスブルク
Publication of JPH01500165A publication Critical patent/JPH01500165A/en
Publication of JPH0325183B2 publication Critical patent/JPH0325183B2/ja
Granted legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
    • A61M5/348—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub snap lock, i.e. upon axial displacement of needle assembly
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
    • A61M5/344—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub using additional parts, e.g. clamping rings or collets
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M2005/3103—Leak prevention means for distal end of syringes, i.e. syringe end for mounting a needle
    • A61M2005/3104—Caps for syringes without needle
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
    • A61M5/343—Connection of needle cannula to needle hub, or directly to syringe nozzle without a needle hub
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
    • A61M5/349—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub using adhesive bond or glues

Landscapes

  • Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるため要約のデータは記録されません。 (57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 医療用注射器 本発明は、注射針の取付けのための接続頚部を形成し注射器シリンダのシリンダ ノズルに取付けられる針接続部と、この針接続部を注射器シリンダに対して保持 しシリンダノズルに係止される外側キャップとを備え、針接続部は、ゴム弾力性 物質からなり、外側キャップは、これに比較して実質的により弾性的にかたい合 成物質からなる医療用注射器に関する。[Detailed description of the invention] medical syringe The present invention forms a connecting neck for attachment of a syringe needle to the cylinder of a syringe cylinder. A needle connection that attaches to the nozzle and holds this needle connection against the syringe cylinder and an outer cap that locks onto the cylinder nozzle, and the needle connection part is made of rubber elastic material. material, the outer cap being a material that is substantially more elastically hard in comparison. The present invention relates to a medical syringe made of a synthetic substance.

前記のような注射器は、出願前には公開されていないヨーロッパ特許出願節８４ 　１００　７１１．５号に記載されており、針接続部と外側キャップとは、既に 充填された注射器の場合であっても容易に組立てることができ、かつ注射器シリ ンダを確実に密閉するという長所を有する。この組立てのためには、シリンダノ ズルに取付けられた針接続部を越えるように外側キャップを差込み、これがシリ ンダノズルに係止されるまでしっかりと押せばよい。注射針は、外側キャップか ら突出する接続頚部中において、この頚部の硬化又は耐熱的貼着によって支持す るようにしてもよい。しかしながら、この針は、最初はなく、注射器を用いる直 前になって初めて接続頚部中又はこの頚部上に差込むようにしてもよく、このた めに、後者の場合には、接続頚部において従来のように直円錐を形成し、注射針 を担持するソケットがこの円錐の上にぴったり合うようにしてもよい。しかしな がら、注射針を受入れかつこれを保護するキャップを取付は得るためには、前記 直円錐は、針接続部に他の方法で取付けられた注射針の場合でも、そのためにこ そ好ましい。注射器を用いる直前になって初めて接続頚部上に注射針が差込まれ る場合には、針接続部中において注入剤の排出を可能にする経路は、この経路中 において係合しこれを密閉する中央のピンを存する閉鎖キャップによって、この キャップが前記直円錐上にあるときに、いわゆるチップ−キャップの方法で閉じ ることができる。A syringe as described above is disclosed in European Patent Application Section 84, which has not been published before filing. 100 711.5, the needle connection and the outer cap are already Easy to assemble, even for filled syringes, and syringe series It has the advantage of reliably sealing the conductor. For this assembly, the cylinder Insert the outer cap over the needle connection attached to the screw so that this Just push it firmly until it locks into the nozzle. Does the needle have an outer cap? In the connecting neck that protrudes from the You may also do so. However, this needle was not initially used and was not used directly with a syringe. It may also be inserted into or on the connecting neck only at a later time; In the latter case, the connecting neck forms a conventional right circular cone and the injection needle The socket carrying the can fit snugly over this cone. However However, in order to obtain a cap that receives and protects the needle, it is necessary to The right circular cone therefore remains That's preferable. Only when the syringe is about to be used is the needle inserted over the connecting neck. If this is the case, the path that allows the evacuation of the infusate in the needle connection should be This is accomplished by a closure cap having a central pin that engages and seals the When the cap is on the right circular cone, it closes using the so-called tip-cap method. can be done.

前記のような注射器の場合、針接続部は、その弾性的性質において、シリンダノ ズルにおける確実な良い密閉を保証するようにできるだけ柔かくされるべきであ る一方、接続頚部の領域が十分なかたさを有しないために、機械的に十分安定に 注射針を保持することができないという問題が生じる。この問題は、以下のよう な本発明によって解決される。すなわち、本発明は、シリンダノズルにおける密 閉にとって十分に柔かい弾性を有する針接続部の場合であっても、注射器が機械 的に高い安定性をもって接続頚部に保持されるように冒頭に述べたような注射器 を構成することを基本的課題とする。In the case of such syringes, the needle connection, in its elastic nature, is similar to the cylinder nozzle. should be made as soft as possible to ensure a good seal in the drain. On the other hand, the connecting neck area does not have sufficient hardness, so it is not mechanically stable enough. A problem arises in that the needle cannot be held. This problem is as below This problem is solved by the present invention. In other words, the present invention provides Even with a needle connection that is soft enough to close, the syringe may The syringe as mentioned at the beginning is held in the connecting neck with high stability. The basic challenge is to configure the

本発明によれば、前記課題は、外側キャップが接続頚部　”の外側を密閉的に被 覆するカラーを有し、これによってこの接続頚部を機械的に補強することによっ て解決される。According to the present invention, the above problem can be solved by the outer cap sealingly covering the outside of the connection neck. by mechanically reinforcing this connection neck. will be resolved.

このカラーは、−被覆スリーブのように接続頚部のまわりを取囲む。しかも、こ のカラーは、外側キャップのかたい合成物質からなるため、接続頚部のたわみ変 形を確実に阻止し、したがって針接続部における針接続の機械的な高安定性を保 証することができる。接続頚部は、柔かい弾性のゆえにカラーに対して確実に密 閉する。したがって、本発明の注射器においても、接続頚部中においてこの頚部 の硬化又は貼着によって注射針を支持するほかに、この注射針を担持するソケッ トとともにカラーの外側において、この針を取付けてもよく、このために、カラ ーは、自身の外周面に直円錐が形成されることがさらに好ましい。本発明のさら に好ましい実施態様は、接続頚部が針側端部に可撓性のリングフランジを形成し 、このフランジは、半径方向外方においてカラーの外周面に至るまでカラーの正 面側リング面を覆い、カラー上に取付けられ注射針を担持するソケットに対して リング状密閉をなすことを特徴とする。さらに、本発明の枠内において、カラー は、針側端部において正面壁によって終端され、この正面壁を通り接続頚部中に 係合する注射針は、この正面壁中に密閉的に差込まれるようにしてもよい。以上 のいずれの場合であっても、注射針を保護するキャップは、カラー又はソケット の外側に取付けることができる。This collar - wraps around the connection neck like a covering sleeve. Moreover, this The collar is made of a hard synthetic material on the outer cap, which prevents deflection of the connecting neck. reliably prevents deformation and thus maintains high mechanical stability of the needle connection at the needle connection. I can testify. The connection neck has a soft elasticity that ensures tight contact with the collar. close Therefore, in the syringe of the present invention, this neck is also In addition to supporting the needle by hardening or adhering it, the socket that carries the needle This needle may be mounted on the outside of the collar together with the It is more preferable that the outer circumferential surface of the cylindrical member has a right circular cone. Further details of the present invention A preferred embodiment is such that the connecting neck forms a flexible ring flange at the needle end. , this flange extends radially outward to the collar's outer circumference. For the socket that covers the side ring surface and is mounted on the collar and carries the syringe needle. It is characterized by forming a ring-shaped seal. Furthermore, within the framework of the invention, color is terminated at the needle end by the front wall and passes through this front wall into the connecting neck. The engaging needle may be inserted sealingly into this front wall. that's all In either case, the cap that protects the needle must be attached to the collar or socket. Can be installed on the outside of the

以下において、図面に描かれた実施例を用いて、本発明の詳細な説明する。In the following, the invention will be explained in detail using examples of embodiments depicted in the drawings.

第１図は、注射器ピストンを概略的にのみ示す本発明の注射器の縦断面図、 第２図は、組立てていない状態における注射器シリンダと注射針を有しない針接 続部との前端部の第１図に対する拡大図、 第３図は、他の状態を示す第２図と同様の図である。FIG. 1 is a longitudinal sectional view of a syringe according to the invention showing only schematically the syringe piston; Figure 2 shows the syringe cylinder in the unassembled state and the needle attachment without the syringe needle. An enlarged view of the front end with the continuation part relative to FIG. 1; FIG. 3 is a diagram similar to FIG. 2 showing another state.

図面において、２つの注射器ピストン９を備えた２室注射器が描かれていて、注 射器シリンダはｌで、そのシリンダノズルは２で、このシリンダノズルに軸方向 において外側から取付は可能な針接続部は３でそれぞれ示されている。In the drawing a two-chamber syringe with two syringe pistons 9 is depicted and The gun cylinder is 1, its cylinder nozzle is 2, and the cylinder nozzle is axially The needle connections, which can be attached from the outside, are each designated by 3.

針接続部３は、外側キャップ４によって保持される。このために、シリンダノズ ル２と針接続部３とは、それぞれ外方フランジ５，６を有し、両外方フランジ５ ．Ｇは、これらを覆う外側キャップ４によって、軸方向において互いに押圧され ている。針接続部３は、注射針の接続のために接続頚部ｌＯを備えている。外側 キャップ４は、接続頚部ｌＯの外側を密閉的に被覆するカラー１１を有し、針接 続部３がシリンダノズル２における確実な密閉を引起こすために比較的柔かく設 定されたゴム弾力性物質からなり、外側キャップ４がこれに比較して実質的によ り弾性的にかたい合成物質からなるかぎりは、このことによって、接続頚部を補 強する。針接続部３は、第１図及び第２図のように、この接続部に注射針が取付 けられないうちは、チップ−キャップ７によって閉鎖することができる。針接続 部３に注射針を差込むときは、接続頚部１０上又はカラー１１上に、不図示の針 保護キャップを差込むことができる。針を接続するためには、さらに第３図に示 すように、注射針１２は、この針を担持するソケット１３を接続頚部ｌＯ及びカ ラーｌｌの外側に差込むことによって、取付けることができる。この際、いずれ の場合においても、カラー１１は、その外周面１１’において直円錐形に構成さ れる。第２図において、接続頚部１０は、針側端部に可撓性のリングフランジ１ ４を形成し、このフランジは、半径方向外方においてカラー１１の外周面１１’ に至るまでカラー１１の正面側リング面１５を覆い、カラー１１上に取付けられ るソケット１３又はチップ−キャップ７の円錐状の内面に対してリング状密閉を なす。The needle connection 3 is held by an outer cap 4. For this purpose, the cylinder nozzle The needle connection part 2 and the needle connection part 3 have outer flanges 5 and 6, respectively, and both outer flanges 5 and 6 have outer flanges 5 and 6, respectively. ．． G are pressed together in the axial direction by an outer cap 4 that covers them. ing. The needle connection part 3 is provided with a connection neck lO for connection of a syringe needle. outside The cap 4 has a collar 11 that hermetically covers the outside of the connection neck lO, and The connection part 3 is designed to be relatively soft in order to create a reliable seal in the cylinder nozzle 2. The outer cap 4 is made of a rubber-resilient material having a defined rubber elasticity. This makes it possible to compensate for the connection neck insofar as it is made of an elastically hard synthetic material. strengthen As shown in Figs. 1 and 2, the needle connection part 3 has an injection needle attached to this connection part. It can be closed by the tip-cap 7 until it is exposed. needle connection When inserting the injection needle into the part 3, place the needle (not shown) on the connecting neck 10 or the collar 11. A protective cap can be inserted. To connect the needles, further The injection needle 12 connects the socket 13 carrying this needle with the neck lO and the cap. It can be attached by inserting it into the outside of the roller. At this time, someday Even in this case, the collar 11 has a right conical shape on its outer peripheral surface 11'. It will be done. In FIG. 2, the connecting neck 10 has a flexible ring flange 1 at the needle end. 4, which flange extends radially outwardly from the outer circumferential surface 11' of the collar 11. It covers the front ring surface 15 of the collar 11 up to the point where it is attached to the collar 11. A ring-shaped seal is formed on the conical inner surface of the socket 13 or tip-cap 7. Eggplant.

注射器シリンダ１と一体のシリンダノズル２は、針側に広がっていて外方フラン ジ６の針側圧面８．１まで達する円錐状の内面６．２を有する。特にゴムからな る針接続部３は、円錐部分１６を有し、この円錐部分は、針接続部３がシリンダ ノズル２に取付けられる際に、前記円錐状の内面６．２に当接する。針接続部３ の外方フランジ５をリングフランジ４．１で覆う外側キャップ４は、外方フラン ジ６のシリンダ側正面６．３を覆う内方ショルダ４．２によって、シリンダノズ ル２に弾性的に係止される。シリンダノズル２中において、シリンダ状内面６． ４は、前記円錐状内面６．２のシリンダ側に続き、針接続部３のシリンダ部分１ ７は、このシリンダ状内面に対応し、このシリンダ部分は、針接続部３がシリン ダノズル２に取付けられる際に、自身のシリンダ状外面が、シリンダノズル２の 前記シリンダ状内面６．４に当接する。The cylinder nozzle 2, which is integral with the syringe cylinder 1, widens toward the needle side and has an outer flange. It has a conical inner surface 6.2 that reaches up to the needle-side pressure surface 8.1 of the needle 6. Especially from rubber. The needle connection 3 has a conical part 16, which allows the needle connection 3 to form a cylinder. When attached to the nozzle 2, it abuts said conical inner surface 6.2. Needle connection part 3 The outer cap 4 covers the outer flange 5 of the outer flange 5 with a ring flange 4.1. The cylinder nozzle is secured by an inner shoulder 4.2 that covers the cylinder-side front face 6.3 of the pipe 6. It is elastically locked to the handle 2. In the cylinder nozzle 2, the cylindrical inner surface 6. 4 continues on the cylindrical side of said conical inner surface 6.2 and the cylindrical part 1 of the needle connection 3 7 corresponds to this cylindrical inner surface, and this cylinder portion is such that the needle connecting portion 3 is connected to the cylinder. When attached to the cylinder nozzle 2, the cylindrical outer surface of the cylinder nozzle 2 It abuts said cylindrical inner surface 6.4.

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Claims (1)

【特許請求の範囲】 １．注射針（１２）の取付けのための接続頚部（１０）を形成し注射器シリンダ （１）のシリンダノズル（２）に取付けられる針接続部（３）と、この針接続部 （３）を前記注射器シリンダ（１）に対して保持し前記シリンダノズル（２）に 係止される外側キャップ（４）とを備え、前記針接続部（３）は、ゴム弾力性物 質からなり、前記外側キャップ（４）は、これに比較して実質的により弾性的に かたい合成物質からなる医療用注射器において、前記外側キャップ（４）は、前 記接続頚部（１０）の外側を密閉的に被覆するカラー（１１）を有し、これによ ってこの接続頚部を機械的に補強することを特徴とする注射器。 ２．カラー（１１）は、自身の外周面（１１′）に直円錐を形成することを特徴 とする請求の範囲第１項に記載の注射器。 ３．接続頚部（１０）は、針側端部に可撓性のリングフランジ（１４）を形成し 、このフランジは、半径方向外方においてカラー（１１）の外周面（１１′）に 至るまで前記カラー（１１）の正面側リング面（１５）を覆い、前記カラー（１ １）上に取付けられ注射針（１２）を担持するソケット（１３）に対してリング 状密閉をなすことを特徴とする請求の範囲第１項又は第２項に記載の注射器。 ４．カラー（１１）は、針側端部において正面壁によって終端され、この正面壁 を通り接続頚部（１０）中に係合する注射針は、この正面壁中に密閉的に差込ま れることを特徴とする請求の範囲第１項又は第２項に記載の注射器。[Claims] 1. Syringe cylinder forming a connecting neck (10) for attachment of a syringe needle (12) The needle connection part (3) attached to the cylinder nozzle (2) of (1), and this needle connection part (3) is held against the syringe cylinder (1) and inserted into the cylinder nozzle (2). a locking outer cap (4), and the needle connection part (3) is made of a rubber elastic material. said outer cap (4) being substantially more elastic in comparison thereto. In medical syringes made of hard synthetic material, the outer cap (4) is It has a collar (11) that hermetically covers the outside of the connecting neck (10). A syringe characterized by mechanically reinforcing the connecting neck. 2. The collar (11) is characterized by forming a right circular cone on its outer peripheral surface (11'). A syringe according to claim 1. 3. The connecting neck (10) forms a flexible ring flange (14) at the needle end. , this flange is radially outwardly attached to the outer peripheral surface (11') of the collar (11). Cover the front side ring surface (15) of the collar (11) until the collar (1 1) a ring against a socket (13) mounted on and carrying a syringe needle (12); 3. The syringe according to claim 1 or 2, characterized in that the syringe forms a seal. 4. The collar (11) is terminated at the needle end by a front wall; The injection needle passing through and engaging into the connecting neck (10) is inserted sealingly into this front wall. The syringe according to claim 1 or 2, characterized in that:
JP61503926A 1986-07-11 1986-07-11 medical syringe Granted JPH01500165A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DE1986/000285 WO1988000479A1 (en) 1986-07-11 1986-07-11 Syringe for medicinal purposes

Publications (2)

Publication Number Publication Date
JPH01500165A true JPH01500165A (en) 1989-01-26
JPH0325183B2 JPH0325183B2 (en) 1991-04-05

Family

ID=6790355

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61503926A Granted JPH01500165A (en) 1986-07-11 1986-07-11 medical syringe

Country Status (3)

Country Link
US (1) US4781701A (en)
JP (1) JPH01500165A (en)
WO (1) WO1988000479A1 (en)

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US4781701A (en) 1988-11-01
JPH0325183B2 (en) 1991-04-05
WO1988000479A1 (en) 1988-01-28

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