JPS61196953A - モ−タ付外科装置 - Google Patents

モ−タ付外科装置

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Publication number
JPS61196953A
JPS61196953A JP61012954A JP1295486A JPS61196953A JP S61196953 A JPS61196953 A JP S61196953A JP 61012954 A JP61012954 A JP 61012954A JP 1295486 A JP1295486 A JP 1295486A JP S61196953 A JPS61196953 A JP S61196953A
Authority
JP
Japan
Prior art keywords
handpiece
surgical
motor
indicator
sensing
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
JP61012954A
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English (en)
Other versions
JPH0775611B2 (ja
Inventor
ダグラス・デイー・シヨストロム
エドヴイン・ゼンガルス
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.)
Smith and Nephew Inc
Original Assignee
Dyonics Inc
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24786077&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=JPS61196953(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Dyonics Inc filed Critical Dyonics Inc
Publication of JPS61196953A publication Critical patent/JPS61196953A/ja
Publication of JPH0775611B2 publication Critical patent/JPH0775611B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/32—Surgical cutting instruments
    • A61B17/320016—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes
    • A61B17/32002—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes with continuously rotating, oscillating or reciprocating cutting instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/90—Identification means for patients or instruments, e.g. tags
    • A61B90/98—Identification means for patients or instruments, e.g. tags using electromagnetic means, e.g. transponders
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B2017/00477—Coupling
    • A61B2017/00482—Coupling with a code
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/03—Automatic limiting or abutting means, e.g. for safety
    • A61B2090/031—Automatic limiting or abutting means, e.g. for safety torque limiting
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/03—Automatic limiting or abutting means, e.g. for safety

Landscapes

  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Pathology (AREA)
  • Electromagnetism (AREA)
  • Physics & Mathematics (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Mechanical Engineering (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Surgical Instruments (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (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。

Description

【発明の詳細な説明】 （技術分野） 本発明は、動力付外科用器具を作動させる装置に関する
。
（背景技術） 組織を切ったシ削りたシする手術用チップは、非常に異
なった大きさや形状のものが使用されてきておシ、その
各々が個々の外科手術処置の夫々に対して設計される。
異なる外科用デバイスの最適作動の限度は異なシ、例え
ば安全に動作するスピード及びトルクはデバイスによっ
て異なる。
−人の患者に対する外科処置が異なる特性の複数の外科
手術デバイスを必要とする場合、外科医は各デバイスに
対して別個の動カニニットを設けるか、あるいは、各デ
バイスの変化、多くの時間を要する操作、及び、器具に
損害を与え又は患者を傷つける可能性のある誤りの危険
を伴なう操作に対して中央ユニットを適応させなければ
ならない。
（目　　的） 本発明の目的は、異なる動作上の制限を有する複数の外
科手術デバイスに使用でき、単一の駆動ユニットで非常
に安全性を高め、スピードを上げそして便利さを高める
ことが可能な外科用装置を提供することである。
（発明の概要） 本発明によれば、異なる動作限度を有する一組の異なる
外科用デバイスを作動させるのに適合する単一モータ外
科用装置は、前記モータを収容し前記外科用デバイスの
各々の基部を交互に受け入れることができるハンドピー
スであって、各外科用デバイスがその基部に動作限度を
示す表示器を有し、その表示を検知する自動検知装置を
含むハンドピースと、前記検知装置に応答し、ハンドピ
ースによって受け入れられた各外科用デバイスに従って
前記モータの作動限度を自動的に決定する装置と、から
構成される。
好適実施例においては、外科用装置は、前述の如く構成
される関節鏡検査ハンドピースと、異なる回転動作限度
を有する複数の取り外し可能な異なる回転チップを受け
得る複数の外科用デバイスとを含み、各デバイスはその
一端で各回転チップの真空通路に接続可能な真空通路を
有し、他端に近接する位置でハンドピースに関連の真空
通路に接続可能で、それによって回転チップによシ取ら
れた組織が外科手術場所から取シ除くことができる。外
科デバイスの表示器は、検知装置にデノくイスが受け入
れることができるチップの回転限度を示し、好適には真
空通路は外科デバイスに近接する位置からノ・ンドビー
スを通してノ・ンドピースの基部端に近接する位置まで
設けられ、そのノ・ンドピースは真空通路を外部の吸入
源に接続し、それによって回転チップによって取られる
組織はハンドピースを通して外科位置から摘出される。
検知器は、モータによって加えられるトルクを制限し、
モータの速度範囲を制限するよう調整される。そのモー
タは電気的で関連する電源を有し、検知装置は所定の外
科デバイスの表示に応答して電源から送られる電力に対
する限度を設定する。好適には、検知装置はモータて加
えられる電圧を制限するように応答し、モータはその電
圧に従ったスピードに維持されるように調整される。検
知装置はモータに供給される電流を制限するように応答
し、モータによって与えられるトルクを制限する。一組
の外科デバイスの各々の表示器は、他のデバイスとは異
なる磁界全発生するようにされた磁石装置から成り、ハ
ンドピース内の検知装置は、その磁界に応答してモータ
を各動作限度に切換え、外科デバイスはその基部に磁石
を含み、ハンドピースは磁石の存在によって作動する一
組のスイッチを含む。
（実施例の説明） 第１図において、本発明による関節鏡検査外科装置は、
ハンドピース１０．各々所定の動作限度内での使用を意
図した外科デバイス１２．１４．１６゜コントローラ／
パワー　ユニット１８及びフット・コントロール装置５
０から構成される。また、後述するように、外科デバイ
スに選択的に取りつけて使用する取シはイし可能な回転
チップが含まれる。
ハンドピース１０は、モータ２１及び末端凹部２２を有
し、その凹部にはドライブ・シャフト２３が伸びている
。凹部２２は、関連の外科デバイスの基部を堅固に受け
とめるような寸法及び形状を有する。
外科デバイスについては６種類のものが示される。シェ
イパ／カッタデバイス１２は直径り、の軸穴１３を有し
、それに対応する外径を有する回転チップを受け、速度
範囲Ｒ２）例えば約１１００ｒｐから約３回転／秒即ち
２００ｒｐｍで回転させ、最大トルクＴ１、例えば２８
インチ・オンス（約２０００ｃｍ・ｇ）を得る。この外
科デバイスに有効な回転チップとしては、例えばマサチ
ューセッツ、　ＡｎｄｏｖｅｒのＤｙｏｎｉｃｓ　　社
製のシェイパ、カッタ及びトリマ・ブレード・アセンブ
リがある。これらは第１図に参照符号２５．２６及び２
７で示しである。
関節形成／滑液摘出デバイス１４は、直径Ｄ２欲きな軸
穴１５を有し、それに対応する外径の回転チップを受け
、回転速度範囲も、例えば４００〜１４００ｒｐｍで、
最大トルクＴ２）例えば約２８インチ・オンス（約２０
００６ｒＩＬ−Ｉ）で作動させる。この外科デバイスに
有効な回転チップとしては、例えば前述のＤｙｏｎｉｃ
ｓ社製の研削器及び全半径溝膜切除ブレード　アセンブ
リがある。これらは第１図に参照符号２８及び２９で示
しである。
小関節デバイス１６は、直径り、の軸穴１７を有し、前
述のものと同様に回転チップを受ける大きさ及び形状に
しであるが、限定された作動範囲の関節、例えば、くる
ぶし、ひじ及び手首の関節に使用されるように小型であ
る。この回転チップオンス（約１０００１００Ｏ’）で
作動されることが望ましい。
各回転チップは、切断エツジに近接するチップの末端か
ら伸びる真空通路を設け、ドレーン・ケースとして作用
する関連の外科デバイスによって設けられる真空通路に
回転チップを通して排気する。ドレーン・ケースの真空
通路は、そのケースの側壁の出口３９を通して側壁の符
合ポート３８に接続され、そのポート３８はハンドピ−
ス内に設けられるドレーン管４０に凹部を画定する。ノ
・ンドビースの基部端に近接して、ドレーン管はコネク
タ４２で終了し、そのコネクタは外科処置場所から組織
及び液体扮泌液）を除去するため、例えば吸入出口（源
）４６からの吸入ホース！　４に取りつけることができ
る。液体をノ・ンドビースを通して基部端に導くことに
よって、接続ホースは電力コードとほぼ平行になり、外
科医がノ・ンドピースを操作するとき吸入ホースによる
妨害が最小限に抑えられる。
ハンドピース内において外科デバイスを受ける凹部を画
定する表面３２に非常に近接して、端部作動ミニ・リー
ド・スイッチ３４．３４’から成るセンサが設けられる
。外科デバイスの各々の基部端面には、そのデバイスが
ハンドピースに組立てられるときセンサの位置と対向す
る選定位置に磁石３６．３６’が設けられリードスイッ
チを作動させる。外科デバイス内の磁石表示器は夫々所
定のパターンに配列され、磁石位置に対向するスイッチ
の作動は、外科装置の使用されるべきデバイスを示す。
コントローラ／パワーユニットは、次にハンドピースに
供給される電力に対する制限を自動的に設定し、速度範
囲及びトルクを使用中の回転チップの最適動作のだめの
所定限度内にする。これによって、外科デバイス又はチ
ップに対する損傷の機会を減少させ、患者を傷つける危
険を少なくする。
ハンドピース１０のモータ室は密封され、その中にリー
ド・スイッチが配置されて、圧熱滅菌によってハンドピ
ースを殺菌することを可能にする。
外科デバイス及び回転チップも圧熱滅菌することができ
る。
第１図において、本発明の関節鏡検査外科装置を動作さ
せるためには、フット・スイッチ５０をコントローラ／
パワーユニット１８の側面に図示するレセプタクルに接
続する。そして、モータ付ハンドピース１０からのコー
ド４８をユニット１８の側面のレセプタクル５２に差し
込む・。（図示のユニットにおいては、Ｄｙｏｎｉｃｓ
　社の関節内部外科システム及び関節形成システムのた
めのモータ・ドライブ・ユニットはそれらをパワー・ユ
ニットのレセプタクル５４．５６に接続することに工っ
で動作させる。それらのレセプタクルは各モータ・ドラ
イブ・ユニットが正しいレセプタクルに挿入されている
場合にのみ機能するように設計されている。） コントローラ／パワー　ユニットの前面の左側のセレク
タ・スイッチ５８をｒｔｌＮＩ■ＲＳルＤＲＩ■」と記
された位置に回す。（別のモータ・ドライブ・ユニット
が使用されるときは、それに適する位置に回わす。電力
は選択されたレセプタクルにのみ供給される。） 所望の外科デバイス、例えばシェイパ／カッタデバイス
１２を選択し、ハンドピース１０及びデバイス１２を一
緒にしてハンドピースをそのキー・スロット６０が見え
る方向だする。そしてデバイス１２をそのキー６２が見
える方向にする。次にデバイスをハンドピースの中にす
べり込ませ、キーをスロットに入れる。そして、カチッ
という音がするまで押しつける。（外科デバイスを取り
はずすことが望ましいときは、キーを押し下げると同時
にデバイスをハンドピースから引き抜く。吸入されてい
ると、操作者は、構成要素を一緒に保持する力を少し感
じるであろう。） 各外科デバイスはその末端部においてバネ付リング６４
を有する。これは、回転チップの挿入及び除去を可能に
するリリース・リングである。
（参照符号は、デバイス１２に示しである。それと共通
の構造上の特徴がデバイス１４及び１６にもあシ、同じ
参照符号にプライム符号（′）及びダブル・プライム符
号（″）で示しである。）回転チップを取りつけるには
、デバイス上のリリース・リングをハンドピースの方に
スライドさせる。これによって、デバイス凹部の末端リ
ム上のキー・スロット６６′が現われる（第６図のデバ
イス１６）。選択されたデバイスと同じファミリから１
つの回転チップを選択する。（回転チップの基部は、使
用しようとする外科デバイスのみの穴と適正に合う大き
さてされる。）ハンドピース及びデバイスの方向を、デ
バイスのキー・スロット６６“及びそれに対応するチッ
プ上のキーの両方が見えるようにする。チップをデバイ
スに挿入し、キーをスロットに入れる。そしてリリース
・リングをその元の位置にスライドして戻す。（チップ
を取りはずすときは、リリース・リングをハンドピース
の方にスライドし、同時にチップをデバイスから引き抜
く。吸入力が加えられている場合には、操作者は構成要
素を一緒に保持する力を少し感じるであろう。） 動作させる前に、本装置の機能が試験される。
パワー・ユニットのパネルの右下の機能選択スイッチ６
８をＯＮの位置にする。
パネルの左下のモータ・セレクタ・スイッチ５８をハン
ドピースに対応する位置に回わす。本発明のハンドピー
スが使用されるとき、パネルの上部のＬＥＤ７０の１つ
が使用されているデバイスを自動的に示す。ハンドピー
スにデバイスが取シつけられていない場合、ＬＥＤは点
灯せず、モータは回転しない。
パネルの中央の速度制御器７２を使用して、回転チップ
の速度を許容範囲内で制御する。
フットスイッチを押してチップのブレードが前方及び逆
方向に動くことをチェックする。
パネルの右上のバーグラフ７４に点灯するＬＥＤを注視
することによってバッテリに残っている電荷をチェック
する。下方の６個のＬＥＤの１つが点灯すると、ユニッ
トはできるだけ早急に充電しなければならない。機能選
択スイッチ６８はそのチェックのためＯＮ（左側）位置
にしなければならない。使用しないかあるいはパワー・
ユニットを充電するときは０ＦＦ（中央）にする。作動
中、フットスイッチが押されているときＬＥＤバーグラ
フの読みが変化するのは正常である。
ハントヒース・ドレーン管４０のドレーン・コネクタ４
２に吸入管４４をしっかりと押しつける。
次に、第７〜７ｄ図を参照して本発明による装置の回路
について説明する。
１、機能モード選択 選択は前面パネルの右下の６位置ロータリ・スイッチ６
８によって行う。このスイッチがｒｅＨＡＲＧＥＪ位置
にあるとき、充電装置からの電流は抵抗Ｒ１を通してパ
ワー・ユニットに流れ、その抵抗に小さい電圧降下を生
じる。この電圧がＬＥＤ充電表示器Ｄ１を作動させる。
ＯＮ位置にあるとき、前面パネルのＬＥＤ　Ｄ２が点灯
し、選択された出力に電力が供給される。ＯＦＦ位置に
あると、全ての回路は不作動となシ、バッテリから電力
は引き出されない。
２）残っている電荷及び充電速度表示器高速充電中、前
面パネルの充電速度ＬＥＤＤ１が連続して点灯する。バ
ッテリが充分に充電されると、Ｄｌはついたり消えたシ
するか、あるいは全熱点灯しない（抵抗Ｒ１に電流が殆
んど流れないからである）。ｒｃＨＡＲＧＦｊ又は［Ｏ
ＮＩモードにあるとき、バーグラフＢ１はバッテリに残
っている電荷を表わす。トリム・ポットＰ１及びＰ２は
基線及び設定値をセットするためのものである。
トランジスタＴ１は基準電圧を与える。
３、　モータ・ドライブ選択 前面パネルの６極ロ一タリ選択スイッチＳ１によりハン
ドピースの電力出力部に電力が伝送される。このスイッ
チは３本の線路の１つに論理信号（接地レベル）を伝送
し、とのモータ・ドライブ・ユニットが選択されたかを
回路の他の部分に伝える。
４、外科デバイス検知及び論理制御 ハンドピース１０内の２つの磁気リード・スイッチ（３
４，３４９は、取シつけられたデバイスによって制御さ
れる。これらの配置は２つの論理ビットを与えて４つの
状態、即ち、デバイスなし、シェイパ／カッタデバイス
１２）関節形成／滑液摘出デバイス１４、そして小関節
デバイス］６を設定する。
デバイス１２をハンドピースと組立てることによって、
磁石３６が対向するリード・スイッチ３４を作動させ、
スイッチ３４′は作動しない。同様に、磁石３６．３６
’　　を有するデバイス１４をハンドピースと組立てる
ことによってそのスイッチの両方を作動させる。デバイ
ス１６をハンドピースと組立てるとスイッチ３６′のみ
が作動する。（（イスレのデバイスも接続されないと、
どチラノスイッチも作動しない。）こうして、本装置は
ハンドピースと組立てられたデバイスを確認することが
できる。
この情報及びモータ・ドライブ選択スイッチ５８の位置
は幾つかのデコード回路セレクタの入力となる。いずれ
の場合も、出力ラインの１つにのみ電流が供給される（
）−ンドピースが取シつけられていないときは、全熱電
流が流れない）。その出力ラインの回路は、そ−タ・ド
ライブに送られる電力を制御するのに使用される。この
回路はモータ・ドライブとデバイスとの各組合せに対す
る電圧／゛亀原流状態別々に調節することを可能にする
。更に、別のデコード回路が前面パネル上のＬＥＤの１
つ（Ｄ３．Ｄ４又はＤ５）に電圧を与えどのデバイスが
取付けられたかを示す。
５、速度制御 ・　選択されたハンドピース、デバイス及びトルクに対
して、速度は供給電圧にほぼ比例する。電圧が増加して
速度が上がシ、一定のトルクで回転していても、電流は
はとんど変化しない。その理由は、速度の上昇はモータ
の逆起電力（ｅｍｆ）を増大させるからである。駆動電
圧がパワー・トランジスタＴ２を通して与えられ、その
トランジスタのペース・バイアスはＯＰアンプＡ１によ
って制御される。駆動電圧の一部は、Ａ１の基準入力に
もどされる。そ−タ・ドライブの速度は、前面パネル上
の速度制御ポテンショメータＰ３を調節してＡ１への信
号入力を変化させることによって制御される。電流感知
フィードバック抵抗Ｒ２はモータに流れる電流に比例す
る電圧を生じさせる。ブレードの回転に対する抵抗が大
きくなると、モータの回転は遅くなシ、逆起電力（ｅｍ
ｆ）　　が減少し、より多くの電流が流れＲ２の両端の
電圧が上昇する。この電圧はＡ１への信号入力を増加さ
せ、更に電圧がモータに加えられ速度を元の値まで回復
させる。回転に対する抵抗の減少によってもたらされる
速度の上昇は反対の効果を有する。こうして、回路は、
安全なトルクの限度（利用可能な最大バッテリ電圧）を
超えない限り、回転速度を一定に保つように動作する。
６、速度範囲設定 ポテンショメータＰ３の固定端子における電圧によって
動作可能範囲が決定され、そのワイパが制御電圧をレギ
ュレータにＯＰアンプＡ３及びＡ４を介して送乃、これ
らのＯＰアンプはインピーダンス・マツチングのために
使用される。Ｒ３の上端の電圧はデコード回路セレクタ
ＡＳＩに接続される５個の分圧回路網の１つによって設
定される。
ＡＳｌへの入力はロータリ・セレクタ・スイッチＳ２及
びモータ・ドライブ・ユニット内のリード・スイッチに
よって設定される論理信号で、取りつけられるデバイス
を示す。これらの入力信号に基いて、ＡＳ２は使用され
ているモータ・ドライブ及びデバイスに対する分圧回路
網を選択する。トリム・ポットによって各回路網を適切
に調節する。
Ｒ３の下方端の電圧はＡＳ２に関連の分圧回路網によっ
て同様に設定される。この配置によってハンドピース／
デバイスの各組合せに対して別々に設定される。
７、トルク限度設定 選定されたハンドピース及びデバイスに対して、電流は
発生されるトルクにほぼ比例する。コントローラ／パワ
ーユニットは電流を制限し加えられるトルクが使用中の
デバイスに対する安全値を超えないようにする。その電
流は抵抗Ｒ２の電圧降下を監視することによって検知さ
れる。この電位をデコード回路セレクタＡＳ３がハンド
ピース／デバイス配置に対して個々に調節される分圧回
路網によって分割する。（これによって、使用されてい
る構成に対して前述の速度範囲設定の場合と同様にトル
ク限度を設定する。）その結果の電圧はトルク制限ＯＰ
アンプＡ２の入力となる。この入力が一定の基準レベル
に達すると、Ａ２は非常に高ゲインで動作してＡ１の基
準入力に大きな信号を与え、その出力が更に上昇するの
を防止する。
このようにして制限電流及びトルクに達した後は、駆動
電圧の上昇が防止される。
８、デバイス表示 デコード回路セレクタＡＳ４はどのデバイスが使用中か
を前面パネルに表示させる。その機能はＡＳＩと同様で
あるが、ＡＳ４は２つの入力のみを有し、デバイスだけ
によって決定される点が異なる。異なるハンドピースが
選択されると、ＡＳ４は動作禁止される。ハンドピース
１０が選択されると、ＡＳ４からの出力はパネル上のＬ
ＥＤＤ３〜Ｄ５（第１図の７０）の１つを点灯させどの
デバイスが取りつけられているかを知らせる。もしデバ
イスが取９つけられていないと、どのＬＥＤも点灯せず
、ハンドピースには電力が送られない。
９、正転／逆転 モータの正転がフットスイッチによって選択されると、
リレーＸ１が付勢され、スイッチＳ１によって選択され
るモータ・ドライブの順方向に電力が与えられる。フッ
トスイッチによって逆転が選択されると、リレーＸ２が
付勢されモータ・ドライブへの電流は逆方向に流れる。
（他の実施例） 本発明の他の実施例が特許請求の範囲内において可能で
ある。例えば、外科デバイス及び回転チップは一体のユ
ニットとして設けることが可能である。所望であれば、
表示器は、電力以外の、又はそれに加えて動作限度を示
すことができる。また　コントローラ／パワーユニット
はハンドピースと一体にすることができる。
【図面の簡単な説明】
第１図は本発明による装置の斜視図である。 第２図は本発明の装置のモータ付ノ・ンドビースの部分
的に切断した平面図であシ、第２α図は第２図の線２ａ
−２αからの断面図である。 第３図はモータ付ハンドピースの末端部の部分的に切断
した側面図である。 第４図及び第４α図は本発明の装置に使用される１つの
外科デバイスの側面図及び端面を示す図である。 第５図は別の外科デバイスの部分的に切断した側面図で
、第５α図はその端面を示す図である。 第６図は更に別の外科デバイスの部分的に切断した側面
図で、第６α図はその端面を示す図であ−る。 第７．７−１．７１２．７α−１，７ｂ、　７ｃ。 ７Ｃ−１，７ｄ及び７ｄ−１図は本発明による装置の回
路図である。 （符号説明） １０：ハンドピース １２）１４．１６　：外科デバイス １８：コントローラ／パワーユニット ２２１：モータ ２５、２６．２７．２８．２９．３０．３１　：回転チ
ップ（外５名）

Claims (10)

    【特許請求の範囲】
  1. （１）異なる動作限度を有する一組の外科デバイス（１
    ２、１４、１６、）を作動させ得る単一モータ外科装置
    であつて、前記モータ（２１）を収容し前記外科デバイ
    スの各々の基部を交替で受けとめるハンドピース（１０
    ）を有する外科装置において、 前記外科デバイスの各々はその基部に動作 限度を表わす表示器（３６、３６′）を有し、前記ハン
    ドピースが前記表示器を検知する 自動検知装置（３４、３４′）を有し、 前記検知装置に応答して、前記ハンドピー スによつて受けとめられる各外科デバイスに従つて前記
    モータの動作限度を自動的に設定する装置を有すること
    を特徴とする外科装置。
  2. （２）特許請求の範囲第１項記載の装置において、関節
    鏡検査ハンドピース（１０）が、異なる回転動作限度を
    有する取りはずし可能な異なる回転チップ（２５、２６
    、２７、２８、２９、３０、３１）を受けとめる複数の
    外科デバイス（１２、１４、１６）を有し、前記複数の
    デバイスの各々が、一端で各回転チップの真空通路に接
    続でき、他端に近接して前記ハンドピースに関連の真空
    通路に接続できる真空通路を有し、それによつて、回転
    チップによつて取られた組織を外科処置位置から摘出す
    ることが可能なハンドピースであつて、 前記外科デバイスの表示器（３６、３６′）が、前記検
    知装置（３４、３４′）にデバイスが受け入れることが
    できるチップの回転限度を示すことを特徴とする外科装
    置。
  3. （３）前記検知器がモータによつて加えられるトルクを
    制限し得ることを特徴とする特許請求の範囲第１項又は
    第２項記載の装置。
  4. （４）前記検知器がモータの速度範囲を制限し得ること
    を特徴とする特許請求の範囲第１項又は第２項記載の装
    置。
  5. （５）前記モータが電動でそれに関連の電源（１２）を
    有し、前記検知装置が所定の外科デバイスの表示器に応
    答して、前記電源によつて送られる電力に制限を設ける
    ことを特徴とする、特許請求の範囲第１項又は第２項記
    載の装置。
  6. （６）前記検知装置が前記モータに加えられる電圧を制
    限するように応答し、前記モータがその電圧に従つてモ
    ータ速度を維持することを特徴とする特許請求の範囲第
    ５項記載の装置。
  7. （７）前記検知装置は前記モータに与えられる電流を制
    限するように応答し、前記モータによつて与えられるト
    ルクを制限することを特徴とする特許請求の範囲第５項
    記載の装置。
  8. （８）前記一組の外科デバイスの各々に対する表示器が
    、その組の他の外科デバイスと異なる磁界を発生し得る
    磁石装置から成り、前記ハンドピース内の検知装置が前
    記磁界に応答して前記モータを夫々の動作限度に切換え
    ることを特徴とする特許請求の範囲第１項記載の装置。
  9. （９）前記外科デバイスがその基部に磁石を含み、前記
    ハンドピースが前記磁石の存在によつて付勢される一組
    のスイッチを含むことを特徴とする特許請求の範囲第１
    項記載の装置。
  10. （１０）前記外科デバイスに近接する位置から前記ハン
    ドピースを通して前記ハンドピースの基部端に近接する
    位置に真空通路が設けられ、前記ハンドピースは前記真
    空通路を外部吸入源（４４、４６）に接続する装置（３
    ８、３９、４０、４２）を含み、 それによつて前記回転チップによつて得ら れる組織が外科処置位置からハンドピースを通して摘出
    されることを特徴とする特許請求の範囲第２項記載の装
    置。
JP61012954A 1985-01-23 1986-01-23 モータ付外科装置 Expired - Lifetime JPH0775611B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US693779 1985-01-23
US06/693,779 US4705038A (en) 1985-01-23 1985-01-23 Surgical system for powered instruments

Publications (2)

Publication Number Publication Date
JPS61196953A true JPS61196953A (ja) 1986-09-01
JPH0775611B2 JPH0775611B2 (ja) 1995-08-16

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Application Number Title Priority Date Filing Date
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Country Link
US (1) US4705038A (ja)
EP (1) EP0189807B1 (ja)
JP (1) JPH0775611B2 (ja)
CA (1) CA1268091A (ja)
DE (1) DE3689730C5 (ja)

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Also Published As

Publication number Publication date
EP0189807A3 (en) 1988-09-14
US4705038A (en) 1987-11-10
JPH0775611B2 (ja) 1995-08-16
EP0189807A2 (en) 1986-08-06
EP0189807B1 (en) 1994-03-23
DE3689730D1 (de) 1994-04-28
DE3689730C5 (de) 2008-07-24
DE3689730T2 (de) 1994-06-30
CA1268091A (en) 1990-04-24

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