JPH07299074A - 外科用装置識別装置 - Google Patents

外科用装置識別装置

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Publication number
JPH07299074A
JPH07299074A JP7122941A JP12294195A JPH07299074A JP H07299074 A JPH07299074 A JP H07299074A JP 7122941 A JP7122941 A JP 7122941A JP 12294195 A JP12294195 A JP 12294195A JP H07299074 A JPH07299074 A JP H07299074A
Authority
JP
Japan
Prior art keywords
cartridge
light
surgical
staples
electrical
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
Application number
JP7122941A
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English (en)
Inventor
Anthony A Boiarski
アンソニー・エイ・ボイアースキー
Mark T Byrne
マーク・ティ・バーン
Warren P Williamson
ウォーレン・ピー・ウィリアムソン
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.)
Ethicon Endo Surgery Inc
Original Assignee
Ethicon Endo Surgery Inc
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Filing date
Publication date
Application filed by Ethicon Endo Surgery Inc filed Critical Ethicon Endo Surgery Inc
Publication of JPH07299074A publication Critical patent/JPH07299074A/ja
Pending legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
    • A61B17/07207—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously the staples being applied sequentially
    • 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
    • A61B2017/00017—Electrical control of surgical instruments
    • A61B2017/00022—Sensing or detecting at the treatment site
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B2017/00017—Electrical control of surgical instruments
    • A61B2017/00022—Sensing or detecting at the treatment site
    • A61B2017/00026—Conductivity or impedance, e.g. of tissue
    • A61B2017/0003—Conductivity or impedance, e.g. of tissue of parts of the instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B2017/00017—Electrical control of surgical instruments
    • A61B2017/00115—Electrical control of surgical instruments with audible or visual output
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B2017/0046—Surgical instruments, devices or methods with a releasable handle; with handle and operating part separable
    • 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
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
    • A61B2017/07214—Stapler heads
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
    • A61B2017/07214—Stapler heads
    • A61B2017/07285—Stapler heads characterised by its cutter
    • 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
    • A61B90/08—Accessories or related features not otherwise provided for
    • A61B2090/0807—Indication means
    • A61B2090/0811—Indication means for the position of a particular part of an instrument with respect to the rest of the instrument, e.g. position of the anvil of a stapling instrument
    • 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/60—General characteristics of the apparatus with identification means
    • A61M2205/6018—General characteristics of the apparatus with identification means providing set-up signals for the apparatus configuration
    • 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/60—General characteristics of the apparatus with identification means
    • A61M2205/6063—Optical identification systems

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

Abstract

(57)【要約】 【目的】 本発明は、外科用装置の終端片もしくは終端
効果器の特性を識別できる装置を提供するを目的とす
る。 【構成】 本発明の好ましい態様においては、外科用ホ
チキス装置のステープルカートリッジに組み入れて、電
圧または電流を印加したときカートリッジタイプおよび
／または状態（すなわちステープル残存の有無）を示す
ことができる電気回路を設ける。本発明によれば、さら
に光学的な識別手段も提供される。

Description

【発明の詳細な説明】
【０００１】
【産業上の利用分野】本発明は、外科用装置の終端片も
しくは終端効果器の特性を識別する手段に係り、特に内
視鏡手術用切断・ホチキス止め装置におけるカートリッ
ジのタイプおよび／または状態を識別・認識する手段に
関する。
【０００２】
【従来の技術】外科医にとって、外科手術用の装置が自
分の意図する用途に適当であるかどうかを決定するた
め、その装置の特性を識別することは重要である。
【０００３】
【発明が解決しようとする課題】装置の特性のうちある
ものは、外観から識別できるが、そうでないものもあ
る。例えば、内視鏡手術用切断・ホチキス止め装置にお
いて、適当なステープルカートリッジが定位置にあるか
どうか、あるいはステープルが射出されたかどうかは、
装置の外観からは容易には知ることができない。また、
交換可能な終端片をハンドル部は共通にして用いる装置
においては、特定の交換部品の特性は、再使用するハン
ドル部の外観からは窺い知れない。今日では、装置の製
造・殺菌に係る費用を考慮に入れるようになり、使い捨
て可能・交換可能な装置の部品が、特に内視鏡手術にお
いて用いられている。その結果、外科医は、ハンドル部
など再使用可能な部分に対して交換可能に取り付けられ
る装置の終端片を頻繁に使用している。しかし、特に内
視鏡手術用の装置は、その特性を識別するのが困難であ
る。それは、外科医が直接に装置を見ることができず、
装置はビデオディスプレイ上で見て、ディスプレイに写
った画像を基にその装置を操作するだけだからである。
【０００４】
【課題を解決するための手段および作用】したがって、
本発明は、外科用装置の特性を識別する手段を提供す
る。この識別手段は、外科用装置終端片の所定の特性を
識別するのに用いられる。例えば、装置の終端片は、そ
の遠方端に終端効果器を備えたシャフトを有するが、こ
の効果器とシャフトは、ハンドル部に連結されて用いら
れるかあるいは連結されないで用いられる交換可能な終
端片を構成する。また、終端効果器自体あるいは終端効
果器の一部が交換可能である場合もある。例えば、ステ
ープルカートリッジは、取り外しと交換ができる。
【０００５】終端片は、効果器のタイプや配置、装置の
長さ・サイズ、あるいは装置の状態等様々な特性を有す
る。これら終端片や終端効果器の特性を識別する手段
は、ユーザーもしくは電動装置のコントロールユニット
に特定の特性を知らせる。この識別手段は、好ましくは
終端片と一体になっているのがよく、終端効果器あるい
は装置の遠方端もしくは作動端に取り付けられるのがよ
い。
【０００６】本発明の識別手段は、好ましい態様におい
ては、直線状の切断・ホチキス止め装置に組み入れられ
る。直線状の切断・ホチキス止め装置は、終端効果器と
しての顎部を有し、この顎部が組織に係合し、また組織
層に固着しこれらを接合するため、平行なステープル
（ホチキス針）の列を切断手段が切り離しながらステー
プルを一針一針適用する。ステープルを収めるカートリ
ッジは、ホチキス止め装置の遠方端にある終端効果器に
位置する。カートリッジは、装置の特定の用途に応じて
種々のタイプのものが用いられる。例えば、組織の種別
あるいは厚さに応じて、ホチキス止めのため組織を把持
する二つの顎部（終端効果器）間のギャップの大きさを
変えるため異なるカートリッジが用いられる。
【０００７】特定の組織あるいは用途に適当なカートリ
ッジが終端効果器に挿入されているかどうかを知ること
は重要である。例えば、もし厚手の組織用のカートリッ
ジが薄手の組織に使用されるならば、所望の止血が得ら
れず、組織を切開したときには、制御不能な出血が見ら
れることになろう。他方、肺などひ弱な組織用のギャッ
プのより小さいカートリッジを用いた場合は、組織は破
られたり、不必要な損傷を受けることもあろう。
【０００８】また、止血手段なしに組織を切断したりす
ることのないよう、ステープルがすでにカートリッジが
射出されたかどうかを知ることも重要である。
【０００９】したがって、カートリッジのタイプを示し
たり、カートリッジがまだステープルを収めているかそ
れともすでに射出したのかを示す識別手段を提供するこ
とが望ましい。
【００１０】カートリッジのタイプを識別するため、カ
ートリッジを着色することも行われた。また、カートリ
ッジの状態を示す機械的手段も試みられている。例えば
米国特許第4,892,244 号と同第5,129,570 号には、機械
的なロックアウト手段が記載されている。機械的なロッ
クアウト手段は、もし単発型のステープルカートリッジ
が交換され、装置のリセットが行われていない場合に
は、装置の再射出を機械的に防止する。
【００１１】そこで、本発明の一つのアスペクト（様
相）においては、ホチキス装置のカートリッジのタイプ
を識別する好ましくは電気的な手段を提供する。
【００１２】また、本発明のもう一つのアスペクトにお
いては、カートリッジの状態、すなわちステープルがま
だカートリッジに残っているかどうかを識別する手段を
提供する。このカートリッジの状態は、単発型の場合は
装置について一度射出が行われたか、そして連発型の場
合は何度射出が行われたかを検知することによって識別
される。
【００１３】単発型のステープルカートリッジが使用さ
れた場合は、検知手段は、現在装置内で定位置にあるカ
ートリッジについて射出が行われたかどうかを識別する
だけでよい。また多発型ステープルカートリッジの場合
は、検知手段は射出の行われた回数を計数する。
【００１４】装置における射出を検知する手段は、好ま
しくは以下に実施例で詳細に説明するように電気的なも
のがよい。しかし、他のタイプの手段も用いることがで
きる。例えば、装置の固定部分に磁気センサを配置する
こともできる。カッターのブレードを進めたりステープ
ルを射出するドライバは、射出が行われるときはセンサ
を通り越して進み、センサによって検出される磁気素子
を有する。例えば多発型カートリッジを使用する場合
は、センサは、射出をコントロールユニットに知らせ
る。コントロールユニットは、装置の射出回数を計数す
る論理回路を含む。また、カートリッジにおける射出を
検知する他の手段に、光学手段がある。本発明はまた、
カートリッジが使用済み（すなわちステープルが残って
いない）の場合に、装置の使用を防止する手段も具備す
る。
【００１５】本発明の装置は、好ましくは、切断や焼灼
等のために電気エネルギーを使う装置や、電動カッター
など装置の位置合わせやステープルの射出に電気・機械
的エネルギーを使う装置に組み込むのがよい。
【００１６】増加する手術の自動化に伴って、自動化装
置における装置のコントロールユニットは、所定の装置
特性を認識できることが必要になる。そのような装置の
一つの例は、コントロールユニットがメカトロ的に支援
された装置の作動工程を連続制御する電動カッター・ホ
チキス止め装置である。電動カッターの例は、米国特許
出願第07/822,478号、同第07/991,619号および同第08/9
1,807 号に記載されている。改良された電動カッターの
中には、このカッターが切開・ホチキス止めしようとす
る組織の種類と厚さに照らし合わせて、ステープルカー
トリッジが適当かどうかを識別するものもある。
【００１７】そこで、本発明の一態様においては、電動
カッターにおける装置特性を検出する手段を提供する。
好ましい態様においては、装置特性を識別するととも
に、装置用途の工程を連続制御するコントロールユニッ
トを有する電機装置を提供する。特に、コントロールユ
ニットがカートリッジのタイプを識別する手段を用い
て、ステープルがすでに射出されたかどうかを検知する
電動カッターが好ましい。もしカートリッジが適当でな
いとき、あるいはステープルがすでに射出されていると
きは、ロックアウト手段によって装置の使用は防止され
る。例えば、ロックアウト手段は、電動ホチキス装置に
おけるコントロールユニットの論理回路に備えられる。
コントロールユニットは、電気的手段が装置の状態が射
出に不適当ないし射出済みと示している場合には、装置
に射出を止めさせる。切断装置を用いる場合には、ロッ
クアウト手段は、カッターの刃が不適当ないし射出角の
カートリッジとともに進行するのを止める。
【００１８】装置特性を検出するもう一つの手段は、光
学手段である。この一つの態様においては、コントロー
ルユニットから光を射出し、これを装置によって反射す
る。光は、例えばコントロールユニットに接続するフォ
トダイオードによって検知されると、電気信号に変換さ
れる。反射光は、特別の反射光信号によって所定の装置
特性を示す。例えば、カートリッジタイプが異なると、
強度や波長が異なる反射光になる。
【００１９】光を透過もしくは遮蔽する反射光源をいく
つか分散して配置し、透過光を検出する光センサもこれ
に対応して分散配置すると、得られる複数の光の出力
は、それぞれオンまたはオフの状態をつくり出すことが
できるため、終端片の特定の特性を示すよう予め定めた
二進コードを表すようにできる。このような光手段の利
点は、光の入力面、光パイプおよび出力レンズを含むシ
ャフト部分が好ましい殺菌方法である放射による殺菌に
対して耐性をもつことである。
【００２０】
【実施例】図１は、遠方端に終端効果器１５を備えたシ
ャフト１９に連結されたハンドル部１７を有する直線状
の切断・ホチキス止め装置（装置）１０を示す。終端効
果器１５は、切断（切開）およびホチキス止めのために
組織を挟み込む二つの顎部１１と１３を有する。上顎１
３は、射出されてきたステープルを受け止めて最終形に
形づくるアンビル１４を具備する。下顎１１は、カート
リッジホルダ１６と、このカートリッジホルダ１６に挿
入可能なカートリッジ１２を具備する。直線状切断・ホ
チキス止め装置の操作はすでに業界で知られており、例
えば米国特許第4,608,981 号および同第4,633,874 号、
ならびに米国特許出願第07/917,636号に記載されてい
る。
【００２１】電気エネルギーの通信手段は、ハンドル部
１６を通して装置１０に入り込み、下顎１１にある回路
と接続するワイヤ１８を含む。ワイヤ１８は、エネルギ
ーを回路に供給する発電機を含むコントロールユニット
（図示せず）に接続される。
【００２２】図２ないし６は、直線状の切断・ホチキス
止め装置の第１の態様を示す。カートリッジ１２は、図
３においては、カートリッジホルダ１６に挿入された状
態で示してある。カートリッジ１２は、このカートリッ
ジを通って長手方向に延びるナイフスロット２９を横切
って設けられる金属箔などの導電性リボン２０を備え
る。カートリッジと一体の電気回路は、機械的に活性化
されるヒューズとして働く導電性のリボン２０と、この
リボン２０の各側に電気的な接点２１，２２を含む。導
電性のストリップ２３と２４は、カートリッジチャネル
１６の内壁３２上に設けられ、カートリッジ１２がチャ
ネル１６に挿入されたとき、接点２１および２２とそれ
ぞれ電気的な接触をなす。この導電性ストリップはま
た、カートリッジチャネル１６の外壁あるいはその内部
に設けてもよい。導電性ストリップ２３，２４はワイヤ
１８に接続され、このワイヤ１８を通して電気エネルギ
ーが回路に供給される。導電性ストリップ２３，２４は
また、適当な絶縁体を用いて、カートリッジチャネル１
６から電気的に絶縁される。
【００２３】カートリッジ１２がカートリッジホルダ１
６に挿入されると、リボン２０は定位置に置かれ、電気
エネルギーは回路に印加される。そして、装置が射出可
能な状態にあることを知らせる電気信号が出力端子に現
れる。装置について射出が行われると、ステープルが適
用されるときに、ナイフが、両顎に挟まれた組織を切断
するため、ナイフスロット２９を通って前方に進む。ナ
イフがナイフスロット２９を通って進むと、リボン２０
が切断される。そしてリボン２０が切断されると、回路
は開状態となる。このため、電気エネルギーが供給され
ても、回路には何も信号は現れず、ナイフがナイフスロ
ットを通って動いたこと（装置について射出が行われた
こと）を指示する。
【００２４】図７と図８は、図２〜４および６に示した
カートリッジチャネルと組み合わせて用いられるカート
リッジ２１２を示す。カートリッジ２１２は、図２〜６
に示したように、カートリッジ１２にぴったりと収まっ
て挿入される。カートリッジ２１２は、使用のためチャ
ネル１６に挿入されたときは、カートリッジチャネル１
６の導電性ストリップ２３，２４に接触する接点２２１
と２２２を備える。
【００２５】カートリッジ２１２は、溝２３２ａを備え
た側壁２３２を有する。カートリッジ２１２はまた、導
電性のつまみ２２０ａ，２２０ｂを有する導電性タブ２
２０を具備するが、つまみ２２０ａと２２０ｂは溝内で
スライド可能なように互いに横方向に外側に向けて付勢
される。溝の遠方端は、穴２１ａと２２ａを有する接点
２２１，２２２を具備する。
【００２６】装置は、遠方端にブレード２８２を備えた
切断部材２８１を有するが、このブレード２８２はナイ
フスロット２２９を通過する。切断・ホチキス止め装置
においては、そのような切断部材の使用は業界で知られ
ている。典型的には、そのような切断部材は、装置のハ
ンドル部に組み合わされたアクチュエータ部材に連結さ
れる。このような装置は、例えば米国特許第4,608,981
号および同第4,633,874 号に記載されている。切断部材
２８１はまた、その下部にノッチ２８３を有する。
【００２７】タブ２２０はさらに、装置がアクチュエー
トされたときに、ナイフ２８１が通るスロット２２５を
有する。スロット２２５は、ナイフのノッチ２８３に係
合するストッパ２２６を有する。ノッチ２８３がストッ
パ２２６に係合すると、ナイフは、ブレードの行程が完
結するまで前進を続ける。ナイフまたは切断部材２８１
が遠方側に進むと、ナイフのノッチ２８３はタブ２２０
に係合し、つまみ２２０ａ，２２０ｂが接点２２１，２
２２に接触するまでタブ２２０を遠方側に進める。こう
して、タブ２２０は、導電性ストリップ２３と２４およ
び接点２２１，２２を含む回路を閉じる。回路は、当初
は、装置がアクチュエートされるまで開回路の状態にあ
る。閉回路は、装置について射出が行われたことを指示
する電気信号を送る。タブ２２０とナイフ上のノッチ２
８３は、回路がブレード行程の終点で閉じるように配置
される。タブ２２０は、ナイフが引き込んだときには、
接点２２１，２２２にある穴２１ａ，２２ｂに係合した
導電性のつまみ２２０ａ，２２０ｂとともに定位置にと
どまる。したがって、カートリッジのステープルを使い
果たしたときは、タブはその前進位置にとどまる。
【００２８】図９〜１１には、他の態様に係る切断・ホ
チキス止め装置のカートリッジ４１とカートリッジチャ
ネル４２を示す。カートリッジ４１は、カートリッジ４
１およびカートリッジチャネル４２に含まれる回路にお
いてヒューズ４０を備える。回路電圧を測定するため、
回路には電流が印加される。もちろん、回路電圧を測定
するために印加される電流は、ヒューズを飛ばして回路
を開状態にすることのないよう、ヒューズの設計基準を
越えてはならない。。カートリッジチャネル４２は、そ
の内壁４５に、絶縁体を介してこの内壁からは電気的に
絶縁された導電性ストリップ４３，４４を備える。ヒュ
ーズ４０は、その各側において、導電性ストリップ４
３，４４と電気的に接触する。導電性ストリップ４３，
４４はまた、回路に電流を供給する電源（図示せず）と
電気的に接続する。装置に射出が行われると、切断・ホ
チキス止めと同時に、回路に電流が供給される。ところ
が、この電流は先に述べたヒューズの設計基準を大きく
上回るものであるため、回路は遮断される。こうして、
装置に射出が行われ、ステープルが費消されたときに
は、回路には電気的な接続性が保たれなくなり、回路電
圧は現れない。
【００２９】図１３には、本発明の第３の態様に係る直
線状切断・ホチキス装置の回路図を示す。この装置にお
いては、電気的な手段は、カートリッジタイプの識別と
装置で射出が行われたかどうかを指示する二つの目的を
果たす。
【００３０】カートリッジは、ヒューズ５０とインピー
ダンス５２を含む。この態様においては、インピーダン
ス素子は、ヒューズ５０と直列をなす。ヒューズ５０
は、既知の小さな抵抗Ｒf 、好ましくは約０．２オーム
を備える。インピーダンス素子５２は、直流を使うとき
は抵抗、交流を使うときはキャパシタ（Ｚf ）である。
交流電源を使うときは、ヒューズ５０と並列にしなが
ら、インダクタも使用することができる。
【００３１】インピーダンス素子５２は、好ましくはＲ
f より高い抵抗値Ｒc 、もしくはＺf より高いインピー
ダンス値Ｚc を有するのがよい。したがって、このとき
の回路電圧Ｖc は、それぞれＩＲc およびＩＺc に等し
い。ヒューズを飛ばさずにインピーダンス素子の抵抗値
もしくはインピーダンス値を知るためには、低電流を印
加する。インピーダンス素子の値は、カートリッジの型
（タイプ）によって決まる。抵抗値ＲC およびインピー
ダンス値ＺC は、多くの異なるカートリッジタイプの中
の特定の一つに対応するよう予め定められる。種々のカ
ートリッジタイプに対応するインピーダンス値は、互い
に区別できるよう、注意深く間隔を開けて定められる。
例えば一つの態様においては、Ｒc 値は、組織厚の三つ
の異なる範囲に対してそれぞれ５、５０および１００オ
ームである。本例においては、電流は、好ましくは約１
〜１０mAである。
【００３２】ヒューズは、既知の第１の電流Ｉ1 が回路
に印加されるときは飛ぶことはない。Ｉ1 が印加される
と、回路電圧が測定される。ＤＣ電流を使う態様の場合
は、抵抗値ＲC は、公知の電流およびＲf 値、測定した
電圧から計算される。交流使う態様のときは、インピー
ダンス素子のインピーダンス値ＺC は、回路電流Ｉ1と
回路電圧の間の大きさと相の関係から求める。
【００３３】ユーザーあるいはコントロールユニットに
対して、薄い組織、中位の厚さの組織あるいは厚い組織
に対してどのカートリッジが使用されているかどうかを
指示するのに、インジケータ手段が用いられる。インジ
ケータ手段は、装置に設けた表示器、あるいは好ましい
態様においては、外科医が手術をしながら見つめるビデ
オモニタの上張りテキスト上に設けられる表示器のよう
に、視覚でとらえられるものである。カートリッジが所
望の用途に適当なカートリッジとして認定されると、装
置は、切断しようとする組織を把持するため操作され、
射出が行われる。装置に射出が行われると、ステープル
が撃たれ、ナイフが送り出され、ヒューズを飛ばすのに
十分な大きさの電流Ｉ2 が印加される。本例において
は、Ｉ2 は１００mAである。ヒューズが飛ばされると、
電気エネルギーが供給されても回路電圧は０となり、カ
ートリッジにおいて射出が行われたことを表示する。
【００３４】ところで、カートリッジは、ヒューズとし
て働くインピーダンス素子を含んでもよい。インピーダ
ンス素子は、カートリッジタイプに応じて予め定められ
た抵抗値もしくはインピーダンス値を有し、インピーダ
ンス素子の設計許容値を越える電流を印加するコントロ
ールによって測定される。この態様の装置は、ヒューズ
と抵抗もしくはインピーダンス素子の機能がインピーダ
ンス素子に組み込まれた点を除いて先の第３の態様と同
じように作動される。
【００３５】ナイフが飛び出て導電性金属箔を切断する
態様（図２〜６）の場合は、金属箔は、特定のカートリ
ッジタイプに対応する既知のインピーダンス値を有する
ものを用いる。
【００３６】電機的制御を行う装置においては、制御手
段内部の論理回路によって射出が防止される。もし所望
の用途には不適当な抵抗値もしくは回路の開状態が検出
されたときは、制御装置は、装置の射出を禁ずる。制御
手段は、装置に組み込まれるか、または装置とは分離さ
れてその外部に設けられる。
【００３７】図１４および１５には、装置特性を識別す
るのに光学手段を用いるもう一つの態様を示す。ハンド
ピース６１は、その遠方端に、ＬＥＤ６２のような光源
とフォトダイオードのような一連の光センサ６３を有す
る。図１４においては、ただ１個の光源６２と光センサ
６３を示す。他方図１５には、複数の光源と光センサを
模式的に示す。使い捨て可能なシャフト６４は、ハンド
ピース６１の遠方端に取り外し可能に連結される。シャ
フト６４は、遠方端に終端効果器（図示せず）、また手
前端にライトガイド６５を有する。ライトガイド６５
は、所望の光伝達効果に応じて種々の形をとる。図１４
の態様においては、ライトガイド６５は、第１の面６６
と第２の面６７を有する管状部材を含み、所定波長の
光、例えば赤外線を透過する光透過性の材料からつくら
れる。第１の光面６６は第１の反射面６６ａを含み、第
２の光面６７は第２の反射面６７ａを含む。反射面６６
ａと６７ａは、入射光を所望の方向に反射する。
【００３８】広い波長幅について光を透過するために
は、ライトガイドは、ガラス、ポリカーボネート、ポリ
スルホンなどの材料でつくるのがよい。ライトガイド
は、望まない光を遮断するフィルタの役割を果たすよう
に設計される。しかし、装置特性を識別するため、狭い
波長幅の光も用いられる。
【００３９】シャフト６４は、第１の面６６がＬＥＤ６
２から発せられた光を受け取ることができるよう、ハン
ドピース６１に連結される。ライトガイド６５を通過す
る光は、反射面６６ａおよび６７ａによって、ライトガ
イド６５の軸に直角の方向に反射される。光は、反射さ
れると、所望の面から射出していく。第２の面６７は、
ライトガイド６５を透過してきた光の一部がセンサ６３
に入射するよう、センサ６３とつながる。
【００４０】図１５においては、一連の光源６９が第２
の面６７と組み合わされている。反射面６８は、それぞ
れの反斜面６８がライトガイドを通って対応する光源に
向かう光の一部を反射するよう、一連の光源６９と組み
合わされる。各光源６９は、光源６９が光を対応するセ
ンサ６３に送るよう、対応する光センサ６３と組み合わ
される。各光源６９は、各光源が二つの信号（光がオン
の状態を示す信号と光がオフの状態を示す信号）のうち
の一方を対応するセンサに送るよう、光を透過もしくは
遮蔽する。センサ６３は、こうして光の信号を二進的な
電機信号に変換する。
【００４１】識別装置によって認識される信号の変形例
の数、すなわち装置の種類と装置特性の種類の数は、２
n （ｎは光センサの数）となる。得られる電気信号は、
データを解釈してそれに応じた反応をするマイクロプロ
セッサに送られる。好ましくは、センサ、データベース
およびマイクロプロセッサは、装置のうちの再使用可能
なハンドル部と組み合わされ、他方光入射点、反射面お
よび光出力点は、装置のうちの使い捨て可能な終端片と
組み合わされる。
【００４２】光学識別手段のもう一つの例においては、
所定の反射率（すなわち光屈折率）、特定の光成分の透
過率を有する材料からつくられるセンサが設けられる。
この光学識別手段はまた、シャフトあるいはシャフトに
連結された終端片の一以上の特性に対応する形状および
／または材料などの変数を用いる装置に組み込まれた特
定の光を識別する。センサは、光の量（すなわち入射光
の強さ）を検出し、所定の装置特性に対応する電気信号
を発生する。
【００４３】図１６には、装置特性を表示する光学手段
の他の変形例を示す。この光学手段は、ハンドル部７１
と組み合わされて、光を円筒形インターフェース軸７３
上の入力面７６に発射する光源７２を備える。シャフト
７３は、シャフトと連なるハンドル部７１の円形遠方端
に飛び飛びに配置した光センサ７７と向かい合う飛び飛
びに配置したレンズ７５を備える。入力面７６は、光パ
イプもしくはライトガイド７８を介して出力レンズ７５
に連結される。出力レンズ７５は、それぞれ光を遮蔽な
いし反射する。この光を遮蔽ないし反射する能力は、例
えば光パイプ状に成形された反射面を使ってシャフトの
終端片に組み込まれる。その結果、終端の特性に対応し
て予め選択される二進的な光出力が得られる。
【００４４】本発明の光学的識別手段の他の態様を、図
１の直線状切断・ホチキス止め装置を使って、図１７と
図１８に示す。光学手段は、光路と、この光路を通した
光の透過を物理的に阻んで装置の状態を指示する光路妨
害手段を含む。
【００４５】図１の直線状切断・ホチキス止め装置にお
ける終端効果器の斜視図を図１７に示す。顎部材１１に
挿入されるカートリッジ１２は、カートリッジの中央を
長手方向に延びるナイフチャネル８０を備える。カッタ
ー手段８１は、このナイフチャネル８０を通ってスライ
ドする。カートリッジ１２はまた、その手前端において
このカートリッジの各側に回転可能に取り付けられ、ま
たナイフチャネル８０により定められる面と直角をなす
フラッグ（目印）部材９０を備える。フラッグ部材９０
は、アップ位置とダウン位置の二つの位置をとるフラッ
グ９１を備える。フラッグ９１は、アップ位置にあると
きは、少なくとも部分的にはナイフチャネル８０内に位
置する。
【００４６】カッター手段８１は、ノッチ８３を有する
ブレード８２を備える。このカッター手段が作動される
と、装置は長手平行なステープル列を、カッター手段の
切断線の両側に沿って進める。カッター手段８１がナイ
フチャネル８０を通って遠方側に延び出ると、カッター
手段はアップ位置にあるフラッグ９１を越えていく。そ
して、カッター手段が引き込むと、ノッチ８３は、これ
をアップ位置からダウン位置に回転しながら、フラッグ
９１に係合する。
【００４７】顎部材１１はさらに、透過部８５と戻り部
８６の二つの部分を有するライトガイド８４を備える。
透過部８５は装置の手前端において、光源に連結され、
またシャフト１９を通して遠方側に延び、さらにその遠
方端に、光を所望の方向に曲げるための反射面８５ａを
有する。戻り部８６は、装置の手前端において光センサ
手段に連結され、顎部材１１のナイフチャネル８０の反
対側においてシャフト１９を通して長手方向に延び、さ
らにその遠方端に反射面を有する。透過部８５は、ライ
トガイド８４を透過する光がこれら透過部と戻り部の間
で光路を通過するよう、光をライトガイド８４の戻り部
８６の方向に向けるよう配置される。光路は、フラッグ
機構９０の手前側に配置される。フラッグ９１は、フラ
ッグ９１は、アップ位置においては光路を妨害して、ラ
イトガイド８４の透過部８５から戻り部８６へ向かう光
を遮蔽するような大きさにする。フラッグ９１は、他の
位置においては、光がライトガイド８４の二つの部分８
５と８６の間を通過するのを可能にする。
【００４８】光センサ手段は、ライトガイド８４の戻り
部８６を通過する光を検出する。フラッグ９１がアップ
位置にあるときは、光は通過できるため、光センサ手段
は、装置において射出が行われていない旨を指示する信
号を発生する。他方フラッグ９１がダウン位置にあると
きは、光は遮断され、光センサ手段は、装置においてす
でに射出が行われた旨を指示する信号を発生する。そし
て、フラッグ１９は、古いカートリッジがステープルを
収めた新しいカートリッジに交換されると、再びアップ
位置に戻る。
【００４９】フラッグ９１は、上述の他にも種々の手段
で動かすことができる。例えば、カッター手段８１を進
めたり、楔あるいはステープルドライバを進めたり引き
込めたりするなどである。
【００５０】図１９には、図１５と図１６に示した光学
的装置識別手段の他の態様を示す。この態様の光学識別
手段は、装置の可動・使い捨て部分に組み込まれるダイ
ナミックコードを含む。この特別の態様においては、専
用のカッター手段１８１がナイフチャネル８０を通って
スライドする。カッター手段１８１は、ブレード１８２
と一連のノッチ１８３を備えるが、このノッチ１８３
は、これがライトガイドの透過８５と戻り部８６の間の
光路に位置するとき、光が透過部８５から戻り部８６へ
進むのを可能にする。一連のノッチ１８３は、装置の特
性をコードを定める異なるノッチ幅のパターンに沿って
配置される。
【００５１】光センサは、光信号を受け取り、これに対
応して、業界ではよく知られた手段によってデジタル信
号に変換されるかまたはマイクロプロセッサないしＣＰ
Ｕで解釈される信号を送る。この信号は、例えばノッチ
の数、ノッチの配置頻度、ノッチの幅および／またはノ
ッチの配列パターンによって異なる多くの特性コードな
どの情報を含む。これらの信号は、装置のタイプや装置
の位置（例えばカッター手段の位置）などのリアルタイ
ムの情報を含む特定の装置特性を指示するために用いら
れる。特性コードはまた、行程インジケータの終端の役
割も兼ねる。この信号は、マイクロプロセッサに対し
て、ユーザーに種々の特性を指示させ、また信号によっ
て体現された装置から受け取るフィードバックに従って
装置に対応しこれを制御させる。
【００５２】光路の妨害手段としては、装置にある他の
可動部分も用いることができる。
【００５３】その他、光学手段としては、例えば図１７
と１８に示したフラッグ上に反射面を配置したり、ある
いは図１９に示したカッター手段を用いてもよい。カッ
ター手段は、ノッチの代わりに、カッター手段上にパタ
ーン配列される一連の反射器を含むこともできる。反射
器は、光を、通常カッター手段の光透過手段と同じ側に
配置されるセンサあるいはライトガイドに向けて反射す
る。
【００５４】以上本発明のいくつかの態様を説明してき
たが、なかでもステープルを収めて送り出すカートリッ
ジを有する直線状の切断・ホチキス止め装置について図
示した。本発明は、識別手段を用いて認識できる異なる
機能をもつ種々の取り外し・交換可能な終端片を有する
外科用装置に関するものである。もちろん、シャフト、
終端効果器あるいはカートリッジは、ステープルや他の
ファスナ手段を収め、また異なる機能を発揮するように
できることは自明であろう。また、当業者に取っては、
種々の変形・変更が、本発明の特許請求の範囲に規定さ
れた範囲内で行えることは理解できるであろう。
【００５５】本発明の具体的な実施態様は以下の通りで
ある。 １）前記終端片は、終端効果器と装置のシャフトである
請求項１記載の装置。 ２）前記装置はさらに、その遠方端において前記終端片
の手前端に連結されるハンドルを備え、前記終端片はこ
のハンドル部から取り外しができる請求項１記載の装
置。 ３）前記電気手段は、機械的に活性化されるヒューズを
備える上記実施態様１）記載の装置。 ４）前記装置はさらに、組織を切開するカッター手段を
備え、前記機械的に活性化されるヒューズは、前記装置
について射出が行われたとき前記カッター手段によって
切断されるリボンである上記実施態様３）記載の装置。 ５）前記電気手段は、機械的に活性化されるヒューズを
備える請求項１記載の装置。 ６）前記ヒューズは、対応する装置特性を示す所定のイ
ンピーダンスを有する上記実施態様５）記載の装置。 ７）前記電気手段は、所定のインピーダンスを有するイ
ンピーダンス素子を備える請求項１記載の装置。 ８）前記素子は抵抗である上記実施態様７）記載の装
置。 ９）前記素子はキャパシタである上記実施態様７）記載
の装置。 １０）前記素子はインダクタである上記実施態様７）記
載の装置。 １１）前記装置はさらに、前記インピーダンスと直列に
配置されたヒューズを備え、このヒューズは装置につい
て射出を行うときに印加される電流によって飛ばすこと
ができる上記実施態様７）記載の装置。 １２）前記装置はさらに、前記インピーダンスと並列に
配置されたヒューズを備え、このヒューズは装置につい
て射出を行うときに印加される電流によって飛ばすこと
ができる上記実施態様７）記載の装置。 １３）前記インピーダンス素子は所定の抵抗を有するヒ
ューズである上記実施態様７）記載の装置。 １４）前記射出状態を識別する手段は、機械的に活性化
されるヒューズを備える電気手段である請求項２記載の
装置。 １５）前記装置はさらに、組織を切開するカッター手段
を備え、前記機械的に活性化されるヒューズは、前記装
置について射出が行われたとき前記カッター手段によっ
て切断されるリボンである上記実施態様１４）記載の装
置。 １６）前記ホチキス止め機能と射出機能は、電機的制御
手段によって支援される請求項２記載の装置。 １７）前記装置はさらに、前記射出状態を示す手段によ
ってカートリッジの状態が不適当であることが表示され
たときは、組織の射出を防止するロックアウト手段を備
える上記実施態様１４）記載の装置。 １８）前記ロックアウト手段は、前記制御手段の内部論
理回路によって制御される上記実施態様１７）記載の装
置。 １９）前記装置はさらに、ユーザーに対して、カートリ
ッジの状態が不適当であるときこれを示す指示手段を備
える請求項２記載の装置。 ２０）前記カートリッジ識別手段は、前記第１の顎部に
含まれる請求項３記載の装置。 ２１）前記カートリッジ識別手段は、所定のインピーダ
ンスを有するインピーダンス素子を備える電機的手段で
あり、そのインピーダンスは装置特性に対応する請求項
３記載の装置。 ２２）前記素子は抵抗である上記実施態様２１）記載の
装置。 ２３）前記素子はキャパシタである上記実施態様２１）
記載の装置。 ２４）前記素子はインダクタである上記実施態様２１）
記載の装置。 ２５）前記装置はさらに、前記インピーダンスと直列に
配置されたヒューズを備え、このヒューズは装置につい
て射出を行うときに印加される電流によって飛ばすこと
ができる上記実施態様２１）記載の装置。 ２６）前記装置はさらに、前記インピーダンスと並列に
配置されたヒューズを備え、このヒューズは装置につい
て射出を行うときに印加される電流によって飛ばすこと
ができる上記実施態様２１）記載の装置。 ２７）前記インピーダンス素子は所定の抵抗を有するヒ
ューズである上記実施態様２１）記載の装置。 ２８）前記ホチキス止め機能と射出機能は、電機的制御
手段によって支援される上記実施態様２１）記載の装
置。 ２９）前記装置はさらに、前記射出状態を示す手段によ
ってカートリッジの状態が不適当であることが表示され
たときは、組織の射出を防止するロックアウト手段を備
える上記実施態様２８）記載の装置。 ３０）前記ロックアウト手段は、前記制御手段の内部論
理回路によって制御される上記実施態様２９）記載の装
置。 ３１）前記装置はさらに、ユーザーに対して、カートリ
ッジの状態が不適当であるときこれを示す指示手段を備
える上記実施態様２０）記載の装置。 ３２）前記電気手段は、機械的に活性化されるヒューズ
を備える請求項４記載の装置。 ３３）前記機械的に活性化されるヒューズは、装置につ
いて射出を行ったときにカッター手段によって切断され
る上記実施態様３２）記載の装置。 ３４）前記電気手段は、電気的に活性化されるヒューズ
を備える請求項４記載の装置。 ３５）前記ヒューズは、対応するカートリッジの型を示
す所定の抵抗値を有する上記実施態様３４）記載の装
置。 ３６）前記電気手段は、所定のインピーダンスを有する
インピーダンス素子を備える請求項５記載のカートリッ
ジ。 ３７）前記素子は抵抗である上記実施態様３６）記載の
カートリッジ。 ３８）前記素子はキャパシタである上記実施態様３６）
記載のカートリッジ。 ３９）前記素子はインダクタである上記実施態様３６）
記載のカートリッジ。 ４０）前記カートリッジはさらに、前記インピーダンス
と直列に配置されたヒューズを備え、このヒューズはカ
ートリッジについて射出を行うときに印加される電流に
よって飛ばすことができる上記実施態様３６）記載のカ
ートリッジ。 ４１）前記カートリッジはさらに、前記インピーダンス
と並列に配置されたヒューズを備え、このヒューズはカ
ートリッジについて射出を行うときに印加される電流に
よって飛ばすことができる上記実施態様３９）記載のカ
ートリッジ。 ４２）前記素子はヒューズである上記実施態様３６）記
載のカートリッジ。 ４３）前記カートリッジは、２個以上のステープルを射
出できる請求項７記載の装置。 ４４）前記センサ手段は装置について射出が行われたか
否かを指示する電気信号を与える電気的手段である請求
項７記載の装置。 ４５）前記センサ手段は、装置の射出状態を示す電気信
号に変換可能な光信号を与える光学手段である請求項７
記載の装置。 ４６）前記センサ手段は磁気素子と磁気センサを備え、
この磁気センサは装置について射出が行われたときに前
記磁気素子を検知し、これに対応する信号を与えるよう
配置される請求項７記載の装置。 ４７）前記対応する信号はコントロールユニットに対し
て射出が行われたことを指示し、コントロールユニット
は生起した射出の数を計数する上記実施態様４６）記載
の装置。 ４８）前記装置はさらに、コントロールユニットと信号
を前記センサからコントロールユニットへ伝える手段を
備え、コントロールユニットは前記信号を解釈して、そ
の信号が前記装置が射出に不適当な状態にあることを示
したときには装置の射出を防止する請求項７記載の装
置。 ４９）前記光学手段は、前記ハンドル部と組み合わされ
た光源と、前記終端片と組み合わされ、この終端片の少
なくとも一つの特性に対応する少なくとも一つの性質を
有するライトガイドと、前記ハンドルと組み合わされ、
前記ライトガイドからの光出力を検知するセンサを備え
る請求項８記載の装置。 ５０）前記ライトガイドは、予め選択された屈折率を有
するように構成され、前記その少なくとも一つの性質は
この予め選択された屈折率を含む上記実施態様４９）記
載の装置。 ５１）前記光学手段は、前記ハンドル部と組み合わされ
た光源と、前記終端片と組み合わされた光入力面と、前
記終端片と組み合わされた光出力点のセットと、前記光
入力面から光出力点のセットに光を伝達するライトガイ
ドと、前記光出力点のセットを通して伝達された光を検
知する、前記ハンドル部に組み合わされたセンサを備
え、さらに前記光出力点のセットは、少なくとも一個の
終端片特性を指示するコードに対応して光出力のパター
ンを与えるように配置され、この光出力のパターンは前
記光センサのセットによって検知され、また前記装置と
組み合わされたコントロールユニットによって解釈され
得る請求項８記載の装置。 ５２）前記ライトガイドは、光に対して所定の減衰を与
えるように構成され、前記少なくとも一個の性質は、こ
の所定の減衰の程度を含む上記実施態様５０）記載の装
置。 ５３）前記光学手段は、光路と、この光路を通って装置
の状態を指示する光の通過を物理的に妨害する光路妨害
手段を含む請求項８記載の装置。 ５４）前記装置は可動部分を含み、また前記光路妨害手
段は機械的に移動することができ、第１の位置と第２の
位置を有するフラッグを含み、このフラッグは前記装置
の可動部分によって第１の位置から第２の位置に移動す
るよう作動される上記実施態様５２）記載の装置。 ５５）前記光路妨害手段は、装置の操作特性をリアルタ
イムで与えるダイナミックコードを含む上記実施態様５
２）記載の装置。 ５６）前記光学手段は光伝達手段と、光反射手段と、光
検出手段を含み、前記光反射手段は、装置特性を指示す
るため、前記光伝達手段から発せられた光を光検出手段
に向けて反射する請求項８記載の装置。
【００５６】
【発明の効果】以上説明したように、本発明の装置によ
れば、外観からは識別できない装置特性、例えば内視鏡
手術用切断・ホチキス止め装置において適当なステープ
ルカートリッジが定位置にあるかどうか、あるいはステ
ープルが射出されたかどうかを識別できる。
【図面の簡単な説明】
【図１】直線状の切開・ホチキス装置を示す説明図。
【図２】本発明の第１の態様に係るカートリッジホルダ
およびカートリッジの部分拡散分解図。
【図３】図２のカートリッジホルダおよびカートリッジ
の正面断面図。
【図４】図３の４−４線断面図。
【図５】図２のカートリッジの部分平面図。
【図６】図５の６−６線断面図。
【図７】本発明の他の態様に係るカートリッジの部分拡
散分解図。
【図８】図７のカートリッジの部分平面図。
【図９】本発明のさらに他の態様に係るカートリッジホ
ルダおよびカートリッジの正面断面図。
【図１０】図９の１０−１０線断面図。
【図１１】図９のカートリッジの部分平面図。
【図１２】図１１の１２−１２線断面図。
【図１３】本発明の第３の態様に係るカートリッジと一
体の回路の回路図。
【図１４】本発明のさらに他の態様に係る、特定の装置
特性を示す光学手段の説明図。
【図１５】光学支持手段の光源と光センサの拡大図。
【図１６】本発明の他の態様に係る光学手段を含む装置
シャフトの手前端を示す斜視図。
【図１７】光学ロックアウト手段を含む図１の装置の他
の態様における遠方端を示す斜視図。
【図１８】図１７の１８−１８線断面図。
【図１９】カッター手段を含む他の態様に係る光学ロッ
クアウト手段を有する装置の斜視図。
───────────────────────────────────────────────────── フロントページの続き (72)発明者 マーク・ティ・バーン アメリカ合衆国、45140 オハイオ州、ラ ブランド、カントリー・ビュー・レーン 9128 (72)発明者 ウォーレン・ピー・ウィリアムソン アメリカ合衆国、45140 オハイオ州、ラ ブランド、サウスベンド・コート 101

Claims (8)

    【特許請求の範囲】
  1. 【請求項１】 外科用装置終端片がこの終端片の特性を
    認識する電気的な識別手段を備えた外科用装置。
  2. 【請求項２】 組織に係合し、これをホチキス止めする
    第１および第２の顎部材と備えた終端効果器を有する外
    科用ファスナ装置であって、前記第１の顎部材は、外科
    用ファスナ手段とカートリッジの射出状態を識別する手
    段を含むカートリッジと、取り外し可能なカートリッジ
    を収めるカートリッジチャネルを具備する装置。
  3. 【請求項３】 組織に係合し、これをホチキス止めする
    第１および第２の顎部材と備えた終端効果器を有する外
    科用ファスナ装置であって、前記第１の顎部材は外科用
    ファスナ手段を含むカートリッジと取り外し可能なカー
    トリッジを収めるカートリッジチャネルを具備し、前記
    終端効果器はカートリッジの型を識別する電気的手段を
    備える装置。
  4. 【請求項４】 カートリッジの射出状態を識別する電気
    的手段を備えた、外科用ホチキス装置のステープルを収
    めるカートリッジ装置。
  5. 【請求項５】 カートリッジの型を識別する電気的手段
    を備えた、外科用ホチキス装置のステープルを収めるカ
    ートリッジ装置。
  6. 【請求項６】 ステープルが存在するか否かを識別する
    電気的手段を備えた、外科用ホチキス装置のステープル
    を収めるカートリッジ装置。
  7. 【請求項７】 外科用ホチキス装置であって、 ステープルを収める取り外し可能なカートリッジと、 前記ステープルを射出するドライバ手段と、 前記装置についての射出を検知するセンサ手段であっ
    て、装置に係る射出を示す電気信号を与えるセンサ手段
    を具備する装置。
  8. 【請求項８】 終端効果器に取り外し可能に取り付けら
    れたハンドル部と、前記終端効果器の少なくとも一つの
    特性を検知する光学手段を備えた外科用装置。
JP7122941A 1994-04-28 1995-04-25 外科用装置識別装置 Pending JPH07299074A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/234,749 US5529235A (en) 1994-04-28 1994-04-28 Identification device for surgical instrument
US234749 1994-04-28

Publications (1)

Publication Number Publication Date
JPH07299074A true JPH07299074A (ja) 1995-11-14

Family

ID=22882649

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7122941A Pending JPH07299074A (ja) 1994-04-28 1995-04-25 外科用装置識別装置

Country Status (5)

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US (5) US5529235A (ja)
EP (1) EP0679367A3 (ja)
JP (1) JPH07299074A (ja)
AU (2) AU689548B2 (ja)
CA (1) CA2147951A1 (ja)

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EP0679367A3 (en) 1995-12-20
US5535937A (en) 1996-07-16
EP0679367A2 (en) 1995-11-02
CA2147951A1 (en) 1995-10-29
US5535934A (en) 1996-07-16
US5693042A (en) 1997-12-02
US5529235A (en) 1996-06-25
US5562239A (en) 1996-10-08
AU1782595A (en) 1995-11-09
AU5285398A (en) 1998-04-02
AU689548B2 (en) 1998-04-02

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