JPH0751273A - 電磁気センサーを有する内視鏡手術器具 - Google Patents
電磁気センサーを有する内視鏡手術器具Info
- Publication number
- JPH0751273A JPH0751273A JP6130897A JP13089794A JPH0751273A JP H0751273 A JPH0751273 A JP H0751273A JP 6130897 A JP6130897 A JP 6130897A JP 13089794 A JP13089794 A JP 13089794A JP H0751273 A JPH0751273 A JP H0751273A
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- 230000008569 process Effects 0.000 claims description 6
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- 238000005520 cutting process Methods 0.000 abstract description 7
- 230000003068 static effect Effects 0.000 abstract 1
- 230000035945 sensitivity Effects 0.000 description 6
- 238000010304 firing Methods 0.000 description 4
- 230000000087 stabilizing effect Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 241001631457 Cannula Species 0.000 description 1
- 230000005355 Hall effect Effects 0.000 description 1
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- 229910000831 Steel Inorganic materials 0.000 description 1
- 210000003815 abdominal wall Anatomy 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000013461 design Methods 0.000 description 1
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- 210000004185 liver Anatomy 0.000 description 1
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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
- A61B17/00—Surgical instruments, devices or methods
- A61B17/00234—Surgical instruments, devices or methods for minimally invasive surgery
-
- 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
- A61B2017/00039—Electric or electromagnetic phenomena other than conductivity, e.g. capacity, inductivity, Hall effect
-
- 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
- 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
- A61B90/06—Measuring instruments not otherwise provided for
- A61B2090/067—Measuring instruments not otherwise provided for for measuring angles
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
- Endoscopes (AREA)
Abstract
(57)【要約】
【目的】 使用者が器具のジョーが組織周辺に適切配置
された時点を知ることができるような器具を提供するこ
と、ジョーが処置しようとする組織周辺の適切位置にな
るまで器具を作動できないように器具を調節すること、
組織留め要素用のフィードバック装置を提供すること。 【構成】 一対のジョーを含んでいる内視鏡手術器具。
該ジョーの相対的位置を測定するための該ジョー中に配
置されている電磁気センサー。
された時点を知ることができるような器具を提供するこ
と、ジョーが処置しようとする組織周辺の適切位置にな
るまで器具を作動できないように器具を調節すること、
組織留め要素用のフィードバック装置を提供すること。 【構成】 一対のジョーを含んでいる内視鏡手術器具。
該ジョーの相対的位置を測定するための該ジョー中に配
置されている電磁気センサー。
Description
【０００１】
【産業上の利用分野】本発明は内視鏡工程で使用するた
めの器具に関するものである。特に、本発明は内視鏡工
程中に組織要素を決定および／または測定するための器
具のヘッド中に電磁気センサーを含んでいる器具に関す
るものである。
めの器具に関するものである。特に、本発明は内視鏡工
程中に組織要素を決定および／または測定するための器
具のヘッド中に電磁気センサーを含んでいる器具に関す
るものである。
【０００２】
【従来技術及びその課題】内視鏡手術はある種の手術工
程を行うための改良された価格的に効果のある技術とし
て広く受け入れられてきている。内視鏡手術では、突き
通し貫通装置であるトロカールがトロカールの周りに置
かれているカニューレと共に体内に挿入される。トロカ
ールが腹壁の貫通を行った後に、それは取り出されそし
てカニューレが体内に残る。トロカールにより頻繁な複
数の開口部が体内に生ずる。これらのカニューレによ
り、内視鏡工程が可能となる。内視鏡器具を１個のカニ
ューレの中に置くこともでき、適当な観察機構を他のカ
ニューレの中に置くこともでき、そして手術領域を照明
するための光学繊維をさらに別のカニューレの中に置く
こともできる。一般的には、これらの内視鏡工程はガス
注入法で行われる。内視鏡工程に関する研究が増加し且
つさらに多くの器具が開発されているため、内視鏡で行
うことができる工程の型は増加するであろう。現在で
は、代表的工程は肝嚢除去、組織復元、および種々の殺
菌工程である。
程を行うための改良された価格的に効果のある技術とし
て広く受け入れられてきている。内視鏡手術では、突き
通し貫通装置であるトロカールがトロカールの周りに置
かれているカニューレと共に体内に挿入される。トロカ
ールが腹壁の貫通を行った後に、それは取り出されそし
てカニューレが体内に残る。トロカールにより頻繁な複
数の開口部が体内に生ずる。これらのカニューレによ
り、内視鏡工程が可能となる。内視鏡器具を１個のカニ
ューレの中に置くこともでき、適当な観察機構を他のカ
ニューレの中に置くこともでき、そして手術領域を照明
するための光学繊維をさらに別のカニューレの中に置く
こともできる。一般的には、これらの内視鏡工程はガス
注入法で行われる。内視鏡工程に関する研究が増加し且
つさらに多くの器具が開発されているため、内視鏡で行
うことができる工程の型は増加するであろう。現在で
は、代表的工程は肝嚢除去、組織復元、および種々の殺
菌工程である。
【０００３】内視鏡工程で使用される器具の多くは、組
織を結合させるか、組織をつかむか、または組織をその
他の方法で操作するために使用されている。そのような
器具は一般的には一対のジョーを有しており、それらを
処置しようとする組織の周りに置き、次に器具を作動さ
せて組織を処置する。認められているように、組織を処
置するためにはジョーを正確に配置することおよび／ま
たは組織を処置するために適切位置においてジョーの間
で正確な組織量にすることがしばしば非常に困難であ
る。
織を結合させるか、組織をつかむか、または組織をその
他の方法で操作するために使用されている。そのような
器具は一般的には一対のジョーを有しており、それらを
処置しようとする組織の周りに置き、次に器具を作動さ
せて組織を処置する。認められているように、組織を処
置するためにはジョーを正確に配置することおよび／ま
たは組織を処置するために適切位置においてジョーの間
で正確な組織量にすることがしばしば非常に困難であ
る。
【０００４】本発明の目的は使用者が器具のジョーが組
織周辺に適切配置された時点を知ることができるような
器具を提供することである。ある態様では、本発明の目
的はジョーが処置しようとする組織周辺の適切位置にな
るまで器具を作動できないように器具を調節することで
ある。他の態様では、本発明の目的は組織留め要素用の
フィードバック装置を提供することである。
織周辺に適切配置された時点を知ることができるような
器具を提供することである。ある態様では、本発明の目
的はジョーが処置しようとする組織周辺の適切位置にな
るまで器具を作動できないように器具を調節することで
ある。他の態様では、本発明の目的は組織留め要素用の
フィードバック装置を提供することである。
【０００５】
【課題を解決するための手段】本発明は、間隔が置かれ
て離れている一対の移動可能なジョーを有する手術器具
を提供するものである。該器具は、手術工程中に処置を
行う際に少なくとも１個のジョーを他方に関して移動さ
せる手段を含んでいる。電磁気センサーがジョーの一方
に配置されておりそして永久磁石目標がジョーの他方に
配置されている。磁石がジョーの間で磁場を生じ、それ
によりジョーの間の距離を測定することができる。
て離れている一対の移動可能なジョーを有する手術器具
を提供するものである。該器具は、手術工程中に処置を
行う際に少なくとも１個のジョーを他方に関して移動さ
せる手段を含んでいる。電磁気センサーがジョーの一方
に配置されておりそして永久磁石目標がジョーの他方に
配置されている。磁石がジョーの間で磁場を生じ、それ
によりジョーの間の距離を測定することができる。
【０００６】本発明は特に身体組織を結合させるために
使用される手術用ステープラー中での使用に応用でき
る。ステープラーは末梢先端および基部先端を有する。
末梢先端は一対のジョーを有しており、ジョーの一方は
静止式でありそして他方のジョーは該静止式ジョー部品
に関して移動可能である。静止式ジョーは複数のステー
プルを担持する。移動可能なジョーはステープルを製造
するために使用されるアンビル手段を含んでいる。ステ
ープラーの基部先端から末梢先端に伸びている移動可能
なジョーを静止式ジョーとの関係を生ずるステープルの
中に移動させる延長軸部分中に、複数の手段が配置され
ている。該器具はまた、ステープルをアンビル手段に推
進させそしてステープルを製造してジョーの間に置かれ
ている組織を結合させる手段も含んでいる。永久磁石は
移動可能なジョーの末梢先端に隣接して且つ静止式ジョ
ーに面して配置されている。磁気抵抗性センサーは静止
式ジョーの末梢先端に隣接し且つ移動可能なジョーに面
して配置されている。磁石がジョーの間で磁場を生じ、
そしてセンサーが磁場の変化を測定してジョーの間の距
離を測定できる。
使用される手術用ステープラー中での使用に応用でき
る。ステープラーは末梢先端および基部先端を有する。
末梢先端は一対のジョーを有しており、ジョーの一方は
静止式でありそして他方のジョーは該静止式ジョー部品
に関して移動可能である。静止式ジョーは複数のステー
プルを担持する。移動可能なジョーはステープルを製造
するために使用されるアンビル手段を含んでいる。ステ
ープラーの基部先端から末梢先端に伸びている移動可能
なジョーを静止式ジョーとの関係を生ずるステープルの
中に移動させる延長軸部分中に、複数の手段が配置され
ている。該器具はまた、ステープルをアンビル手段に推
進させそしてステープルを製造してジョーの間に置かれ
ている組織を結合させる手段も含んでいる。永久磁石は
移動可能なジョーの末梢先端に隣接して且つ静止式ジョ
ーに面して配置されている。磁気抵抗性センサーは静止
式ジョーの末梢先端に隣接し且つ移動可能なジョーに面
して配置されている。磁石がジョーの間で磁場を生じ、
そしてセンサーが磁場の変化を測定してジョーの間の距
離を測定できる。
【０００７】本発明を手術用ステープル留め器具に関し
てさらに詳細に記載するが、感知および測定装置をステ
ープラー以外の他の手術器具の中に組み込めるというこ
とは認識すべきである。本発明は、互いに相手に関して
移動可能な一対のジョーを有するいずれの器具の中にも
組み込むことができる。
てさらに詳細に記載するが、感知および測定装置をステ
ープラー以外の他の手術器具の中に組み込めるというこ
とは認識すべきである。本発明は、互いに相手に関して
移動可能な一対のジョーを有するいずれの器具の中にも
組み込むことができる。
【０００８】
【実施例】本発明を内視鏡手術用の線状ステープル留め
および切断器具に関して詳細に記載する。
および切断器具に関して詳細に記載する。
【０００９】図面を参照すると、図１には本発明に従う
感知機構を組み込んでいる内視鏡線状ステープル留めお
よび切断器具１０が示されている。該器具はハンドル部
分１１を含んでおり、それは該ハンドル部分から伸びて
いる延長軸１２を有する。軸の反対側の先端にはステー
プル留め組み立て品１３がある。ステープル留め組み立
て品は静止式ステープル支持部品１４および移動可能な
アンビル部品１５を含んでいる。ステープル支持部品
は、ステープルが隣接列中にオフセットするように４列
の平行なステープル列を担持する。ステープル支持部品
はまたステープルの中央の２列の間に置かれた溝も含ん
でいる。溝は、ステープル支持部品の基部先端から末梢
先端に移動可能なナイフを受容する。ナイフは、当技術
で良く知られているように、ステープル留め後に組織を
切断するために使用される。また、この態様では軸が伸
びる起点であるハンドル部分の先端に回転手段１６が配
置されている。この回転手段により、軸並びに作業先端
すなわちステープル留め組み立て品が回転する。ハンド
ル部分には、閉鎖引金である第一引金がある。この引金
はアンビル部品をステープル支持部品に関して適切な位
置にさせるために使用される。ハンドルはまた第二のす
なわち射撃引金１８も含んでいる。射撃引金は軸の中に
置かれている適当な機構によりステープルを軸支持具部
品から駆動させてアンビル部品に向かってステープルを
製造する。器具の末梢先端に置かれているナイフがこの
第二引金により作動してナイフがステープル列の間を移
動しそして組織が結合された後に組織を切断する。器具
のハンドルの裏には解除レバー１９が配置されており、
それは作動時にアンビル部品をステープル支持部品から
開かせる。そのようなステープル留め器具は共有譲渡さ
れている現在出願継続中の特許出願セリアル番号第９１
７,６３６号および第８２２,４７８号にさらに詳細に記
載されており、それらの両者とも引用することにより本
発明の内容となる。
感知機構を組み込んでいる内視鏡線状ステープル留めお
よび切断器具１０が示されている。該器具はハンドル部
分１１を含んでおり、それは該ハンドル部分から伸びて
いる延長軸１２を有する。軸の反対側の先端にはステー
プル留め組み立て品１３がある。ステープル留め組み立
て品は静止式ステープル支持部品１４および移動可能な
アンビル部品１５を含んでいる。ステープル支持部品
は、ステープルが隣接列中にオフセットするように４列
の平行なステープル列を担持する。ステープル支持部品
はまたステープルの中央の２列の間に置かれた溝も含ん
でいる。溝は、ステープル支持部品の基部先端から末梢
先端に移動可能なナイフを受容する。ナイフは、当技術
で良く知られているように、ステープル留め後に組織を
切断するために使用される。また、この態様では軸が伸
びる起点であるハンドル部分の先端に回転手段１６が配
置されている。この回転手段により、軸並びに作業先端
すなわちステープル留め組み立て品が回転する。ハンド
ル部分には、閉鎖引金である第一引金がある。この引金
はアンビル部品をステープル支持部品に関して適切な位
置にさせるために使用される。ハンドルはまた第二のす
なわち射撃引金１８も含んでいる。射撃引金は軸の中に
置かれている適当な機構によりステープルを軸支持具部
品から駆動させてアンビル部品に向かってステープルを
製造する。器具の末梢先端に置かれているナイフがこの
第二引金により作動してナイフがステープル列の間を移
動しそして組織が結合された後に組織を切断する。器具
のハンドルの裏には解除レバー１９が配置されており、
それは作動時にアンビル部品をステープル支持部品から
開かせる。そのようなステープル留め器具は共有譲渡さ
れている現在出願継続中の特許出願セリアル番号第９１
７,６３６号および第８２２,４７８号にさらに詳細に記
載されており、それらの両者とも引用することにより本
発明の内容となる。
【００１０】本発明の感知機構２０は、器具の作業先端
すなわちアンビル部品およびステープル支持部品の中に
配置されている。適当な電力供給部２１が感知機構に供
されている。感知機構を図２と共にさらに詳細に記載す
る。図２に示されているように、電磁気センサー２５は
ステープル支持部品２６の末梢先端に配置されている。
永久磁石２７はアンビル部品２８の末梢先端に配置され
ている。この態様では、磁気抵抗性センサーがステープ
ル支持機構の中で使用されている。適当な電気信号が適
当な電源から電線２９によりセンサーに供給される。
すなわちアンビル部品およびステープル支持部品の中に
配置されている。適当な電力供給部２１が感知機構に供
されている。感知機構を図２と共にさらに詳細に記載す
る。図２に示されているように、電磁気センサー２５は
ステープル支持部品２６の末梢先端に配置されている。
永久磁石２７はアンビル部品２８の末梢先端に配置され
ている。この態様では、磁気抵抗性センサーがステープ
ル支持機構の中で使用されている。適当な電気信号が適
当な電源から電線２９によりセンサーに供給される。
【００１１】認められているように、センサーは小さく
すべきであり、すなわち約３〜５ミリメートルの直径お
よび１〜２ミリメートルの厚さを有していなければなら
ない。センサーは０〜５ミリメートルの測定範囲をでき
るだけ正確に有していなければならない。器具がコバル
ト照射または他の技術により殺菌されるかもしれないた
め、センサーは照射に耐えられなければならない。それ
は例えば手術室で使用される補助装置により発生するも
ののような補助的磁場並びに地球自身の磁場により生ず
る妨害に対して抵抗性でなければならない。そのような
適当な磁気抵抗性センサーはフィリップス・コーポレー
ションから入手可能であり、そしてマグネティック・フ
ィールド・センサー(Magnetic Field Sensor)ＫＭＺ１
０ＡおよびＫＭＺ１０Ｂと同定されている。アンビル部
分には永久磁石が配置されている。また、磁石もアンビ
ル部品の末梢先端中に適合させるのに充分なほど小さく
なくてはならず、そしてこの態様の幾何学的形状用には
それは約４００ガウスの磁場強度を有していなければな
らない。それより低い磁場強度は１〜５ｍｍ範囲にわた
り希望する測定感度を与えず、そしてそれより高い強度
の磁石はセンサーを狭い範囲で飽和させる傾向がある。
認められているように、アンビル部品はステープル支持
部品に非常に近いため、磁気抵抗性センサーが永久磁石
により生ずる磁場の強度を検出する。この信号が次に操
作者に逆に送られる。信号は適当な位置情報に転換さ
れ、そして希望により器具のハンドル上またはある種の
他の像表示上に表示される。ある態様では、情報が調節
器に逆に供されてジョーまたは他の要素内のステープル
高さが調節される。
すべきであり、すなわち約３〜５ミリメートルの直径お
よび１〜２ミリメートルの厚さを有していなければなら
ない。センサーは０〜５ミリメートルの測定範囲をでき
るだけ正確に有していなければならない。器具がコバル
ト照射または他の技術により殺菌されるかもしれないた
め、センサーは照射に耐えられなければならない。それ
は例えば手術室で使用される補助装置により発生するも
ののような補助的磁場並びに地球自身の磁場により生ず
る妨害に対して抵抗性でなければならない。そのような
適当な磁気抵抗性センサーはフィリップス・コーポレー
ションから入手可能であり、そしてマグネティック・フ
ィールド・センサー(Magnetic Field Sensor)ＫＭＺ１
０ＡおよびＫＭＺ１０Ｂと同定されている。アンビル部
分には永久磁石が配置されている。また、磁石もアンビ
ル部品の末梢先端中に適合させるのに充分なほど小さく
なくてはならず、そしてこの態様の幾何学的形状用には
それは約４００ガウスの磁場強度を有していなければな
らない。それより低い磁場強度は１〜５ｍｍ範囲にわた
り希望する測定感度を与えず、そしてそれより高い強度
の磁石はセンサーを狭い範囲で飽和させる傾向がある。
認められているように、アンビル部品はステープル支持
部品に非常に近いため、磁気抵抗性センサーが永久磁石
により生ずる磁場の強度を検出する。この信号が次に操
作者に逆に送られる。信号は適当な位置情報に転換さ
れ、そして希望により器具のハンドル上またはある種の
他の像表示上に表示される。ある態様では、情報が調節
器に逆に供されてジョーまたは他の要素内のステープル
高さが調節される。
【００１２】本発明の感知装置の好適態様は図３ａ、
ｂ、およびｃに示されている。この態様では、磁気的に
偏っているセンサー３０が器具のステープル支持部品３
１の中に配置されており、そして永久磁石目標３２が器
具のアンビル部品３３の中に配置されている。センサー
は磁気抵抗性センサー３４およびバイアス磁石３５を含
んでいる。バイアス磁石はセンサーの頂部に配置されて
おりそしてアンビル部品の末梢先端に配置されている永
久目標磁石に面している。バイアス磁石はセンサー内部
整列磁場、すなわちセンサーのＸ軸、と平行な安定用磁
場を供するために使用される。センサーのずれを用心し
ながら、安定用磁場を適用して内部整列磁場を強化させ
る。センサーがセンサーの内部整列磁場と反対の強力な
磁場の下に来るなら、センサーのずれが生ずるかもしれ
ない。影響はセンサー出力の極性においては逆になるで
あろう。図４にさらに明白に示されている如く、バイア
ス磁石５０はセンサーの頂部表面に連結されておりそし
てセンサーの表面のほぼ半分を覆っている。バイアス磁
石は厚さが０.７６ミリメートルの約２ミリメートル×
４ミリメートルのプラスチック成形磁石である。バイア
ス磁石はセンサー５１の長さと平行であるその長さを有
する。バイアス磁石の磁場はその軸がセンサーの最大表
面と直角にそして北極が上方に向いて配向される。バイ
アス磁石の磁場強度は約１７５ガウスである。バイアス
磁石およびセンサーは器具のステープル支持部品の末梢
先端に埋められており、そして水平端部から約１２°の
角度で配置されている。目標磁石５２はプラスチック成
形磁石である。寸法は約４ミリメートル×５ミリメート
ル×厚さ１ミリメートルであり、そしてそれはアンビル
部品の末梢先端中に埋められている。目標磁石の磁場は
アンビル表面と直角にそして南極が外側または下方に向
いて配向される。この永久磁石の磁場強度は約４００ガ
ウスである。全体的感度を改良するには、目標磁石はバ
イアス磁石より強力でなければならない。操作時に、永
久磁石は磁気−抵抗性センサーに向かって外側に配され
ている磁場を生ずる。アンビル部品がステープル支持部
品に非常に近くなるにつれて、磁気抵抗性センサーが磁
場の強度および位置を感知するであろう。バイアス磁石
も磁場を生ずるが、目標磁石より幾分弱い磁場を生ず
る。この比較的弱い磁場は安定用磁場として作用して、
センサーと永久磁石との間の隙間を読み取る際の感度を
改良する。
ｂ、およびｃに示されている。この態様では、磁気的に
偏っているセンサー３０が器具のステープル支持部品３
１の中に配置されており、そして永久磁石目標３２が器
具のアンビル部品３３の中に配置されている。センサー
は磁気抵抗性センサー３４およびバイアス磁石３５を含
んでいる。バイアス磁石はセンサーの頂部に配置されて
おりそしてアンビル部品の末梢先端に配置されている永
久目標磁石に面している。バイアス磁石はセンサー内部
整列磁場、すなわちセンサーのＸ軸、と平行な安定用磁
場を供するために使用される。センサーのずれを用心し
ながら、安定用磁場を適用して内部整列磁場を強化させ
る。センサーがセンサーの内部整列磁場と反対の強力な
磁場の下に来るなら、センサーのずれが生ずるかもしれ
ない。影響はセンサー出力の極性においては逆になるで
あろう。図４にさらに明白に示されている如く、バイア
ス磁石５０はセンサーの頂部表面に連結されておりそし
てセンサーの表面のほぼ半分を覆っている。バイアス磁
石は厚さが０.７６ミリメートルの約２ミリメートル×
４ミリメートルのプラスチック成形磁石である。バイア
ス磁石はセンサー５１の長さと平行であるその長さを有
する。バイアス磁石の磁場はその軸がセンサーの最大表
面と直角にそして北極が上方に向いて配向される。バイ
アス磁石の磁場強度は約１７５ガウスである。バイアス
磁石およびセンサーは器具のステープル支持部品の末梢
先端に埋められており、そして水平端部から約１２°の
角度で配置されている。目標磁石５２はプラスチック成
形磁石である。寸法は約４ミリメートル×５ミリメート
ル×厚さ１ミリメートルであり、そしてそれはアンビル
部品の末梢先端中に埋められている。目標磁石の磁場は
アンビル表面と直角にそして南極が外側または下方に向
いて配向される。この永久磁石の磁場強度は約４００ガ
ウスである。全体的感度を改良するには、目標磁石はバ
イアス磁石より強力でなければならない。操作時に、永
久磁石は磁気−抵抗性センサーに向かって外側に配され
ている磁場を生ずる。アンビル部品がステープル支持部
品に非常に近くなるにつれて、磁気抵抗性センサーが磁
場の強度および位置を感知するであろう。バイアス磁石
も磁場を生ずるが、目標磁石より幾分弱い磁場を生ず
る。この比較的弱い磁場は安定用磁場として作用して、
センサーと永久磁石との間の隙間を読み取る際の感度を
改良する。
【００１３】磁石の位置、強度および極立体配置は正確
な読み取りを得るために重要である。バイアス磁石の磁
場はその極がセンサーの表面と直角に且つ北極が図５に
示されているように上に面して配向される。図５に示さ
れている如く、目標磁石の磁場は静止式ジョー表面と直
角に且つ南極が下に向いて配向される。上記の如く、目
標磁石の磁場は希望する感度を与えるためにはバイアス
磁石により生ずる磁場より強いことが必要である。セン
サーおよび目標磁石を選択することにより、目標磁石に
より生ずる磁場のＸおよび／またはＹ成分を調節でき
て、どのセンサーが検出しそしてどれがセンサーの出力
を調節するかを調節することができる。安定用磁場がセ
ンサーのＸ軸中に制定されることが望ましく、そしてこ
れはバイアス磁石により行われる。目標磁石の磁場は約
４００ガウスの磁気強度を有しており且つバイアス磁石
の磁気強度より大きくなければならない。認められるよ
うに、永久磁石の相対的部分すなわちバイアス磁石およ
びセンサー手段は希望する精度のために調節しなければ
ならない。センサーからの読み取りを処理しそして適当
な情報に転換させそして器具のハンドル上に表示するた
め、使用者はアンビル部品とステープル支持部品との間
の相対的距離を知ることができる。希望により、センサ
ー信号が引金機構と組み合わされてアンビルおよびステ
ープル支持部品が互いに相手に関して適切な位置にある
時にだけ機構の射撃が可能になるように器具を調節する
ためにセンサーを使用できる。
な読み取りを得るために重要である。バイアス磁石の磁
場はその極がセンサーの表面と直角に且つ北極が図５に
示されているように上に面して配向される。図５に示さ
れている如く、目標磁石の磁場は静止式ジョー表面と直
角に且つ南極が下に向いて配向される。上記の如く、目
標磁石の磁場は希望する感度を与えるためにはバイアス
磁石により生ずる磁場より強いことが必要である。セン
サーおよび目標磁石を選択することにより、目標磁石に
より生ずる磁場のＸおよび／またはＹ成分を調節でき
て、どのセンサーが検出しそしてどれがセンサーの出力
を調節するかを調節することができる。安定用磁場がセ
ンサーのＸ軸中に制定されることが望ましく、そしてこ
れはバイアス磁石により行われる。目標磁石の磁場は約
４００ガウスの磁気強度を有しており且つバイアス磁石
の磁気強度より大きくなければならない。認められるよ
うに、永久磁石の相対的部分すなわちバイアス磁石およ
びセンサー手段は希望する精度のために調節しなければ
ならない。センサーからの読み取りを処理しそして適当
な情報に転換させそして器具のハンドル上に表示するた
め、使用者はアンビル部品とステープル支持部品との間
の相対的距離を知ることができる。希望により、センサ
ー信号が引金機構と組み合わされてアンビルおよびステ
ープル支持部品が互いに相手に関して適切な位置にある
時にだけ機構の射撃が可能になるように器具を調節する
ためにセンサーを使用できる。
【００１４】図６に示されている如く、多くのステープ
ル留め器具では、ステープル支持部品６０は除去可能で
且つ廃棄可能なカートリッジ６１を含んでいる。カート
リッジは１列またはそれ以上のステープル６２の列をそ
して一般的にはステープルの約４列を担持しており、隣
接列中のステープルはオフセットされている。しばし
ば、２列の中央列の間に軌道があり、ナイフ６３がステ
ープル列の間を下方に通過できる。従って、ステープル
を射撃すると、４列が射撃されて組織を結合させそして
次に組織がステープル間で切断されるかもしれない。ス
テープル支持部品は、それぞれのステープルに対して適
当な駆動機構６４を保有するカートリッジを支持してい
る。楔形部品６５はカートリッジを通って移動してステ
ープルをカートリッジから組織中に駆動させる。当技術
で良く知られている如く、ステープルはアンビル部品６
６に対して製造される。磁気抵抗性センサーはカートリ
ッジの末梢先端中に支持されるかまたは埋められている
が、器具のステープル支持部品は図面に示されているよ
うにステープル支持部品上に永久的ずん胴端部があるよ
うにそしてカートリッジがずん胴端部に隣接して置かれ
るかまたは適合されるように設計することが好ましい。
センサー６８はずん胴端部の中に埋められており、それ
は常に永久磁石６９に関するのと同じ関係を有する。セ
ンサーがカートリッジ自身の中に置かれているなら、カ
ートリッジ毎にわずかな変動があると考えられ、それは
もちろんセンサーの精度を減じるであろう。追加磁石７
０を楔形駆動部品６５に連結させることができる。この
追加磁石を使用して先端を製造されたステープルの間の
組織切断に対して信号を送る。これにより、信号センサ
ー６８は組織の厚さ並びにステープル留めおよび切断操
作の完了の両方を感知することができる。認められてい
る如く、本発明のセンサーおよび磁石は２枚の表面の間
の空間的関係を測定するために使用され、そして例えば
組織の厚さ、ステープルの高さ、操作の完了、機構の固
定または解除、並びに内視鏡器具中で使用される他の操
作のような種々の目的用に使用できる。
ル留め器具では、ステープル支持部品６０は除去可能で
且つ廃棄可能なカートリッジ６１を含んでいる。カート
リッジは１列またはそれ以上のステープル６２の列をそ
して一般的にはステープルの約４列を担持しており、隣
接列中のステープルはオフセットされている。しばし
ば、２列の中央列の間に軌道があり、ナイフ６３がステ
ープル列の間を下方に通過できる。従って、ステープル
を射撃すると、４列が射撃されて組織を結合させそして
次に組織がステープル間で切断されるかもしれない。ス
テープル支持部品は、それぞれのステープルに対して適
当な駆動機構６４を保有するカートリッジを支持してい
る。楔形部品６５はカートリッジを通って移動してステ
ープルをカートリッジから組織中に駆動させる。当技術
で良く知られている如く、ステープルはアンビル部品６
６に対して製造される。磁気抵抗性センサーはカートリ
ッジの末梢先端中に支持されるかまたは埋められている
が、器具のステープル支持部品は図面に示されているよ
うにステープル支持部品上に永久的ずん胴端部があるよ
うにそしてカートリッジがずん胴端部に隣接して置かれ
るかまたは適合されるように設計することが好ましい。
センサー６８はずん胴端部の中に埋められており、それ
は常に永久磁石６９に関するのと同じ関係を有する。セ
ンサーがカートリッジ自身の中に置かれているなら、カ
ートリッジ毎にわずかな変動があると考えられ、それは
もちろんセンサーの精度を減じるであろう。追加磁石７
０を楔形駆動部品６５に連結させることができる。この
追加磁石を使用して先端を製造されたステープルの間の
組織切断に対して信号を送る。これにより、信号センサ
ー６８は組織の厚さ並びにステープル留めおよび切断操
作の完了の両方を感知することができる。認められてい
る如く、本発明のセンサーおよび磁石は２枚の表面の間
の空間的関係を測定するために使用され、そして例えば
組織の厚さ、ステープルの高さ、操作の完了、機構の固
定または解除、並びに内視鏡器具中で使用される他の操
作のような種々の目的用に使用できる。
【００１５】図面の図７を参照すると、本発明のセンサ
ーの他の態様が示されている。この態様では、磁気抵抗
性センサー４０および永久磁石４１が器具のステープル
支持部品４２の上に配置されている。アンビル部品４３
は４００シリーズステンレス鋼または永久磁石により生
ずる磁場の立体配置に影響を与えたり変えたりしない同
様な磁鉄鋼材料でなければならない。アンビル部品が永
久磁石の磁場に非常に近くなると、ジョーが閉じられて
いる時には、永久磁石により発生しそしてセンサーによ
り観察される磁場は変化したその強度を有する。磁気抵
抗性センサーは磁場のこの改変を感知し、測定し、そし
て信号を発生させ、それを希望する情報に転換すること
ができて、静止式ステープル支持部品と移動可能なアン
ビル部品との間の距離を調節および測定する。
ーの他の態様が示されている。この態様では、磁気抵抗
性センサー４０および永久磁石４１が器具のステープル
支持部品４２の上に配置されている。アンビル部品４３
は４００シリーズステンレス鋼または永久磁石により生
ずる磁場の立体配置に影響を与えたり変えたりしない同
様な磁鉄鋼材料でなければならない。アンビル部品が永
久磁石の磁場に非常に近くなると、ジョーが閉じられて
いる時には、永久磁石により発生しそしてセンサーによ
り観察される磁場は変化したその強度を有する。磁気抵
抗性センサーは磁場のこの改変を感知し、測定し、そし
て信号を発生させ、それを希望する情報に転換すること
ができて、静止式ステープル支持部品と移動可能なアン
ビル部品との間の距離を調節および測定する。
【００１６】図面に関して記載されているセンサーは磁
気抵抗性センサー、すなわち変化する磁場により誘発さ
れる抵抗における変化を測定するセンサー、であるが、
例えば磁場による電圧変化を生ずるホール・エフェクト
・センサー(Hall Effect Sensor)などの如き他のセンサ
ーを使用することもできる。本発明の好適態様は磁気−
抵抗性センサーをその比較的高い感度の理由のために使
用している。また、磁気抵抗性センサーを例えばガンマ
照射、オートクレーブ処理などの如き種々の技術による
殺菌に耐性にさせることもできる。目標磁石は測定不可
能なほど弱くてはならず、またセンサーを飽和させるほ
ど強くてもいけない。約３００〜５００ガウスの強度を
有する永久磁石が１〜５ｍｍの隙間範囲に対して満足の
いくものであると見いだされている。バイアス磁石を使
用する時には、もちろんそれは永久磁石より弱くなけれ
ばならない。約１７５ガウスの強度プラスマイナス２０
ガウスがバイアス磁石に対して満足がいくものであると
見いだされている。希望により、永久磁石を既知の周波
数で操作される源と電磁気的に連結させることもでき
る。生ずる磁場は同じ周波数を有するであろう。センサ
ーは電磁石により生ずる磁場中の変化に応答するであろ
う。同期検出器と組み合わされたそのような電磁石は外
部源および他の周波数からの妨害を除去し、そして高感
度を有する装置を製造するであろう。
気抵抗性センサー、すなわち変化する磁場により誘発さ
れる抵抗における変化を測定するセンサー、であるが、
例えば磁場による電圧変化を生ずるホール・エフェクト
・センサー(Hall Effect Sensor)などの如き他のセンサ
ーを使用することもできる。本発明の好適態様は磁気−
抵抗性センサーをその比較的高い感度の理由のために使
用している。また、磁気抵抗性センサーを例えばガンマ
照射、オートクレーブ処理などの如き種々の技術による
殺菌に耐性にさせることもできる。目標磁石は測定不可
能なほど弱くてはならず、またセンサーを飽和させるほ
ど強くてもいけない。約３００〜５００ガウスの強度を
有する永久磁石が１〜５ｍｍの隙間範囲に対して満足の
いくものであると見いだされている。バイアス磁石を使
用する時には、もちろんそれは永久磁石より弱くなけれ
ばならない。約１７５ガウスの強度プラスマイナス２０
ガウスがバイアス磁石に対して満足がいくものであると
見いだされている。希望により、永久磁石を既知の周波
数で操作される源と電磁気的に連結させることもでき
る。生ずる磁場は同じ周波数を有するであろう。センサ
ーは電磁石により生ずる磁場中の変化に応答するであろ
う。同期検出器と組み合わされたそのような電磁石は外
部源および他の周波数からの妨害を除去し、そして高感
度を有する装置を製造するであろう。
【００１７】本発明を例および好適態様により記載して
きたが、本発明の精神および範囲から逸脱しない限り他
の応用および改変を使用できることは明白であろう。
きたが、本発明の精神および範囲から逸脱しない限り他
の応用および改変を使用できることは明白であろう。
【００１８】本発明の主なる特徴および態様は以下のと
おりである。
おりである。
【００１９】１．間隔が置かれて離れている一対の表面
を有しており、手術工程中に処置を行うために該表面が
互いに相手に関して移動可能であるような手術器具にお
いて、該表面の一方に配置されている電磁気センサーお
よび該表面のどちらかに配置されている磁気目標を含ん
でいて該表面間に磁場を生じさせ、それによりジョーの
間の物理的関係を測定できることを特徴とする手術器
具。
を有しており、手術工程中に処置を行うために該表面が
互いに相手に関して移動可能であるような手術器具にお
いて、該表面の一方に配置されている電磁気センサーお
よび該表面のどちらかに配置されている磁気目標を含ん
でいて該表面間に磁場を生じさせ、それによりジョーの
間の物理的関係を測定できることを特徴とする手術器
具。
【００２０】２．電磁気センサーが磁気抵抗性センサー
である、上記１の手術器具。
である、上記１の手術器具。
【００２１】３．電磁気センサーが該表面の一方に配置
されておりそして磁気目標が該表面の他方に配置されて
いる、上記１の手術器具。
されておりそして磁気目標が該表面の他方に配置されて
いる、上記１の手術器具。
【００２２】４．表面が手術用ファスナーを組織に適用
するための一対のジョーである、上記１の手術器具。
するための一対のジョーである、上記１の手術器具。
【００２３】５．電磁気センサーが該ジョーの一方に配
置されている磁気抵抗性センサーでありそして磁気目標
が該ジョーの他方に配置されている、上記４の手術器
具。
置されている磁気抵抗性センサーでありそして磁気目標
が該ジョーの他方に配置されている、上記４の手術器
具。
【００２４】６．体腔内で手術工程中に処置を行うため
の末梢先端、該末梢先端を体腔外側から操作するための
基部先端、並びに該末梢先端および基部先端を連結して
いる延長軸部分を有する内視鏡手術器具であり、該末梢
先端が、間隔が置かれて離れている、他方に関して移動
可能な一対のジョー部品、拡大磁場を生ずるための該ジ
ョー部品の一方に配置されている磁気目標、および該磁
場中の変化を測定するための他方のジョー部品に配置さ
れている電磁気センサーを含んでおり、それによりジョ
ーの間の空間的関係を測定できることを特徴とする内視
鏡手術器具。
の末梢先端、該末梢先端を体腔外側から操作するための
基部先端、並びに該末梢先端および基部先端を連結して
いる延長軸部分を有する内視鏡手術器具であり、該末梢
先端が、間隔が置かれて離れている、他方に関して移動
可能な一対のジョー部品、拡大磁場を生ずるための該ジ
ョー部品の一方に配置されている磁気目標、および該磁
場中の変化を測定するための他方のジョー部品に配置さ
れている電磁気センサーを含んでおり、それによりジョ
ーの間の空間的関係を測定できることを特徴とする内視
鏡手術器具。
【００２５】７．電磁気センサーが磁気抵抗性センサー
である、上記６の内視鏡手術器具。
である、上記６の内視鏡手術器具。
【００２６】８．磁気抵抗性センサーが磁気的に偏って
いる、上記７の内視鏡手術器具。
いる、上記７の内視鏡手術器具。
【００２７】９．磁場における変化がジョー部品の間の
距離を測定する、上記６の手術器具。
距離を測定する、上記６の手術器具。
【００２８】１０．磁気抵抗性センサーがガンマ線殺菌
可能である、上記７の内視鏡手術器具。
可能である、上記７の内視鏡手術器具。
【００２９】１１．目標磁石が永久磁石である、上記６
の内視鏡手術器具。
の内視鏡手術器具。
【００３０】１２．目標磁石が電磁石である、上記１１
の内視鏡手術器具。
の内視鏡手術器具。
【００３１】１３．体腔内で手術工程中に処置を行うた
めの末梢先端、該末梢先端を体腔外側から操作するため
の基部先端、並びに該末梢先端および基部先端を連結し
ている延長軸部分を有する内視鏡手術器具であり、該末
梢先端が、一方のジョー部品は静止式でありそして他方
のジョー部品は該静止式ジョー部品に関して移動可能に
なっているような間隔が置かれて離れている一対のジョ
ー部品、拡大磁場を生ずるための該移動可能なジョーに
配置されている磁気目標、および該磁場中の変化を測定
するための該静止式ジョーに配置されている電磁気セン
サーを含んでおり、それによりジョーの間の空間的関係
を測定できることを特徴とする内視鏡手術器具。
めの末梢先端、該末梢先端を体腔外側から操作するため
の基部先端、並びに該末梢先端および基部先端を連結し
ている延長軸部分を有する内視鏡手術器具であり、該末
梢先端が、一方のジョー部品は静止式でありそして他方
のジョー部品は該静止式ジョー部品に関して移動可能に
なっているような間隔が置かれて離れている一対のジョ
ー部品、拡大磁場を生ずるための該移動可能なジョーに
配置されている磁気目標、および該磁場中の変化を測定
するための該静止式ジョーに配置されている電磁気セン
サーを含んでおり、それによりジョーの間の空間的関係
を測定できることを特徴とする内視鏡手術器具。
【００３２】１４．電磁気センサーが磁気抵抗性センサ
ーである、上記１３の内視鏡手術器具。
ーである、上記１３の内視鏡手術器具。
【００３３】１５．目標磁石が永久磁石である、上記１
４の内視鏡手術器具。
４の内視鏡手術器具。
【００３４】１６．磁気抵抗性センサーが磁気的に偏っ
ている、上記１４の内視鏡手術器具。
ている、上記１４の内視鏡手術器具。
【００３５】１７．身体組織を結合させるための内視鏡
手術用ステープラーであり、該ステープラーが末梢先
端、基部先端、並びに該末梢先端および基部先端を連結
する延長軸部分を有しており、該末梢先端が、一方のジ
ョーは静止式でありそして他方のジョーは該静止式ジョ
ーに関して移動可能になっており、該移動可能なジョー
がステープルを形成するためのアンビル手段を含む一対
のジョー、該静止式ジョーに配置された、組織を結合す
るために使用される複数個のステープル該延長軸部分に
配置されておりそしてステープラーの基部先端から末梢
先端に伸びて該移動可能なジョーを該静止式ジョーと形
成関係に移動させる手段、該延長軸部分に配置されてお
りそしてステープラーの基部先端から末梢先端に伸びて
該ステープルを該アンビル手段に強制しそして該ステー
プルを形成して該ジョーの間に置かれている組織を結合
させる作動手段、該移動可能なジョーの末梢先端に隣接
して且つ該静止式ジョーに面して配置されており該ジョ
ーの間に磁場を生成するための磁気目標、および該静止
式ジョーの末梢先端に隣接しており且つ該移動可能なジ
ョーに面して配置されていて該磁場中の変化を測定する
ための電磁気センサーを含んでおり、それによりジョー
の間の距離を測定できるような内視鏡手術ステープラ
ー。
手術用ステープラーであり、該ステープラーが末梢先
端、基部先端、並びに該末梢先端および基部先端を連結
する延長軸部分を有しており、該末梢先端が、一方のジ
ョーは静止式でありそして他方のジョーは該静止式ジョ
ーに関して移動可能になっており、該移動可能なジョー
がステープルを形成するためのアンビル手段を含む一対
のジョー、該静止式ジョーに配置された、組織を結合す
るために使用される複数個のステープル該延長軸部分に
配置されておりそしてステープラーの基部先端から末梢
先端に伸びて該移動可能なジョーを該静止式ジョーと形
成関係に移動させる手段、該延長軸部分に配置されてお
りそしてステープラーの基部先端から末梢先端に伸びて
該ステープルを該アンビル手段に強制しそして該ステー
プルを形成して該ジョーの間に置かれている組織を結合
させる作動手段、該移動可能なジョーの末梢先端に隣接
して且つ該静止式ジョーに面して配置されており該ジョ
ーの間に磁場を生成するための磁気目標、および該静止
式ジョーの末梢先端に隣接しており且つ該移動可能なジ
ョーに面して配置されていて該磁場中の変化を測定する
ための電磁気センサーを含んでおり、それによりジョー
の間の距離を測定できるような内視鏡手術ステープラ
ー。
【００３６】１８．目標磁石が永久磁石である、上記１
７の内視鏡手術器具。
７の内視鏡手術器具。
【００３７】１９．電磁気センサーが磁気抵抗性センサ
ーである、上記１７の内視鏡手術器具。
ーである、上記１７の内視鏡手術器具。
【００３８】２０．磁気抵抗性センサーが磁気的に偏っ
ている、上記１７の内視鏡手術器具。
ている、上記１７の内視鏡手術器具。
【００３９】２１．手術用ファスナーを組織に適用する
ための手術器具であり、少なくとも２個の間隔が置かれ
て離れているジョーを有しており、手術工程中で処置を
行うために１個またはそれ以上のジョーが互いに相手に
関して移動可能であるような手術器具において、該ジョ
ーの一方に配置されている電磁気センサーおよび該ジョ
ーの一方に配置されており、該ジョーの間で磁場を生じ
させる磁気目標を備えており、それによりジョーの間の
距離を測定できるようにする手術器具。
ための手術器具であり、少なくとも２個の間隔が置かれ
て離れているジョーを有しており、手術工程中で処置を
行うために１個またはそれ以上のジョーが互いに相手に
関して移動可能であるような手術器具において、該ジョ
ーの一方に配置されている電磁気センサーおよび該ジョ
ーの一方に配置されており、該ジョーの間で磁場を生じ
させる磁気目標を備えており、それによりジョーの間の
距離を測定できるようにする手術器具。
【００４０】２２．測定された距離を他の手術用留め具
要素を調節するために使用する手段を含んでいる、上記
２１の手術器具。
要素を調節するために使用する手段を含んでいる、上記
２１の手術器具。
【図１】図１は本発明の感知機構を組み込んでいる内視
鏡線状ステープル留めおよび切断器具の側面立面図であ
る。
鏡線状ステープル留めおよび切断器具の側面立面図であ
る。
【図２】図２は図１に示されている器具のステープル留
めおよび切断ヘッドの拡大断面図である。
めおよび切断ヘッドの拡大断面図である。
【図３】図３ａ、ｂおよびｃは図１に示されている器具
のステープル支持部分およびアンビルの側面操作図であ
る。
のステープル支持部分およびアンビルの側面操作図であ
る。
【図４】図４は本発明の装置で使用されるセンサーの拡
大透視図である。
大透視図である。
【図５】図５は本発明で使用されるセンサーと永久磁石
との間の空間的関係を示す側面図である。
との間の空間的関係を示す側面図である。
【図６】図６は本発明を組み込んでいる装置の末梢先端
の一態様の側面図である。
の一態様の側面図である。
【図７】図７は本発明のセンサーを組み込んでいる内視
鏡器具の末梢先端の別の態様の側面図である。
鏡器具の末梢先端の別の態様の側面図である。
１０ 切断器具 １１ ハンドル部分 １２ 延長軸 １５ アンビル部品 ２０ 感知機構 ３４ センサー
───────────────────────────────────────────────────── フロントページの続き (72)発明者 ジエイムズ・イー・ドボルスキ アメリカ合衆国オハイオ州43026ヒレアー ド・ブレイドウツドドライブ3567 (72)発明者 ジユリー・ビー・スウイツク アメリカ合衆国オハイオ州43146オリエン ト・テインバーレイクサークル5438
Claims (5)
- 【請求項１】 間隔が置かれて離れている一対の表面を
有しており、手術工程中に処置を行うために該表面が互
いに相手に関して移動可能であるような手術器具におい
て、該表面の一方に配置されている電磁気センサーおよ
び該表面のどちらかに配置されている磁気目標を含んで
いて該表面間に磁場を生じさせ、それによりジョーの間
の物理的関係を測定できることを特徴とする手術器具。 - 【請求項２】 体腔内で手術工程中に処置を行うための
末梢先端、該末梢先端を体腔外側から操作するための基
部先端、並びに該末梢先端および基部先端を連結してい
る延長軸部分を有する内視鏡手術器具であり、該末梢先
端が、間隔が置かれて離れている、他方に関して移動可
能な一対のジョー部品、拡大磁場を生ずるための該ジョ
ー部品の一方に配置されている磁気目標、および該磁場
中の変化を測定するための他方のジョー部品に配置され
ている電磁気センサーを含んでおり、それによりジョー
の間の空間的関係を測定できることを特徴とする内視鏡
手術器具。 - 【請求項３】 体腔内で手術工程中に処置を行うための
末梢先端、該末梢先端を体腔外側から操作するための基
部先端、並びに該末梢先端および基部先端を連結してい
る延長軸部分を有する内視鏡手術器具であり、該末梢先
端が、一方のジョー部品は静止式でありそして他方のジ
ョー部品は該静止式ジョー部品に関して移動可能になっ
ているような間隔が置かれて離れている一対のジョー部
品、拡大磁場を生ずるための該移動可能なジョーに配置
されている磁気目標、および該磁場中の変化を測定する
ための該静止式ジョーに配置されている電磁気センサー
を含んでおり、それによりジョーの間の空間的関係を測
定できることを特徴とする内視鏡手術器具。 - 【請求項４】 身体組織を結合させるための内視鏡手術
用ステープラーであり、該ステープラーが末梢先端、基
部先端、並びに該末梢先端および基部先端を連結する延
長軸部分を有しており、該末梢先端が、一方のジョーは
静止式でありそして他方のジョーは該静止式ジョーに関
して移動可能になっており、該移動可能なジョーがステ
ープルを形成するためのアンビル手段を含む一対のジョ
ー、該静止式ジョーに配置された、組織を結合するため
に使用される複数個のステープル該延長軸部分に配置さ
れておりそしてステープラーの基部先端から末梢先端に
伸びて該移動可能なジョーを該静止式ジョーと形成関係
に移動させる手段、該延長軸部分に配置されておりそし
てステープラーの基部先端から末梢先端に伸びて該ステ
ープルを該アンビル手段に強制しそして該ステープルを
形成して該ジョーの間に置かれている組織を結合させる
作動手段、該移動可能なジョーの末梢先端に隣接して且
つ該静止式ジョーに面して配置されており該ジョーの間
に磁場を生成するための磁気目標、および該静止式ジョ
ーの末梢先端に隣接しており且つ該移動可能なジョーに
面して配置されていて該磁場中の変化を測定するための
電磁気センサーを含んでおり、それによりジョーの間の
距離を測定できるような内視鏡手術ステープラー。 - 【請求項５】 手術用ファスナーを組織に適用するため
の手術器具であり、少なくとも２個の間隔が置かれて離
れているジョーを有しており、手術工程中で処置を行う
ために１個またはそれ以上のジョーが互いに相手に関し
て移動可能であるような手術器具において、該ジョーの
一方に配置されている電磁気センサーおよび該ジョーの
一方に配置されており、該ジョーの間で磁場を生じさせ
る磁気目標を備えており、それによりジョーの間の距離
を測定できるようにする手術器具。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US6541393A | 1993-05-24 | 1993-05-24 | |
| US065413 | 1993-05-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0751273A true JPH0751273A (ja) | 1995-02-28 |
Family
ID=22062543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6130897A Pending JPH0751273A (ja) | 1993-05-24 | 1994-05-23 | 電磁気センサーを有する内視鏡手術器具 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5395033A (ja) |
| EP (1) | EP0630612A1 (ja) |
| JP (1) | JPH0751273A (ja) |
| AU (1) | AU669794B2 (ja) |
| CA (1) | CA2124109A1 (ja) |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP0630612A1 (en) | 1994-12-28 |
| AU669794B2 (en) | 1996-06-20 |
| AU6331894A (en) | 1994-12-01 |
| US5395033A (en) | 1995-03-07 |
| CA2124109A1 (en) | 1994-11-25 |
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