JP2007508869A - 外科用ステープル留めデバイス - Google Patents
外科用ステープル留めデバイス Download PDFInfo
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- A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
- A61B17/115—Staplers for performing anastomosis in a single operation
- A61B17/1155—Circular staplers comprising a plurality of staples
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- A61B17/32—Surgical cutting instruments
- A61B17/3205—Excision instruments
- A61B17/32053—Punch like cutting instruments, e.g. using a cylindrical or oval knife
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- 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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- 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
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- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- 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
- A61B2017/07257—Stapler heads characterised by its anvil
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- 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
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Abstract
Description
本開示は、一般に、外科用ステープルを身体組織に付与するための外科用ステープル留めデバイスに関する。より詳細には、本開示は、中空の組織器官の環状吻合を実施するために適切な外科用ステープル留めデバイスに関する。
吻合は、別個の中空器官セクションの外科的連結である。代表的には、吻合手順は、中空組織の疾患または欠陥セクションが除去され、そして残りの端部セクションが接続されるべき手術に伴う。所望の吻合手順に依存して、これら端部セクションは、環状、端部と側面、側面と側面器官再構築方法のいずれかによって接続され得る。
現在開示される外科用ステープル留めデバイスの実施形態は、ここで、図面を参照して詳細に説明され、図面においては、同様の参照番号は、いくつかの図面の各々で、同様の参照番号は、同一または対応する要素を指定する。
図3〜8を参照して、接近機構は、接近ノブ22、駆動ネジ32、回転可能スリーブ33、第1および第2のネジ伸長部それぞれ34および36(図6)を、およびアンビル保持具38を含む。回転可能スリーブ33は、実質的に円筒形の中空本体部分40、および実質的に円筒形のカラー42を含み、これらは、一緒に中央ボア33aを規定する。カラー42は、ハンドルセクション18aおよび18bの内壁上に形成された内側に延びるフランジ46を受容するような寸法であるその周りに形成された環状溝44を有する。溝44とフランジ46との間の係合は、静止ハンドル18に対するスリーブ33の回転を許容しながら、ハンドル18内にスリーブ33を軸方向に固定する。回転可能なスリーブ33の本体部分40の近位端は、静止ハンドル18の近位端中の開口部18bを通じて延びる。一対の直径方向で対向する細長いリブ48が、本体部分40の外面上に位置決め、または形成される。接近ノブ22は、スリーブ33のリブ48を受容するよう位置決めされた一対の内部スロット49aを含み、ノブ22の回転がスリーブ33の同時の回転を引き起こすように、スリーブ33をノブ22に回転可能に固定する。
図3〜6および9を参照して、この発射機構は、発射トリガー20、発射リンク72および細長いプッシャーリンク74を含む(図6)。発射トリガー20は、本体部分76およびトリガーカバー80を含む。ネオプレンまたはゴムから形成され得るクッションのあるグリップ面(図示せず)がトリガーカバー80の上に提供され得る。このクッションのあるグリップ面は、スリップしない、および/またはクッションのある表面を提供し、外科医にとってより心地よいデバイス10の作動を行う。トリガー20の本体部分76の遠位端は、回動部材84によって連結部材86に回動可能に連結される。連結部材86は、プッシャーリンク74の近位端に固定され、そしてプッシャーリンク74と一体に、またはそれに固定される別個の要素として形成され得る。発射リンク72は、回動部材87によってリリガー20の本体部分76に回動可能に取り付けられた遠位端、および回動部材79によって静止ハンドル18の静止ハンドル半分セクション18aと18bとの間に形成された垂直スロット82内に回動可能に取り付けられた第2の端部を有する。回動部材79は、スロット82内で垂直方向に自由に移動する。スプリング82a(図9)がハンドル18内に支持され、回動部材79をスロット82の底に向かって下方に押す。トリガー20の本体部分76は、デバイス10の接近前にトリガー20の作動を防ぐために、以下により詳細に説明されるような様式で、トリガーロック26の遠位端26a(図4)を係合するよう位置決めされる橋台89および橋台(abutment)91を含む一対の橋台をさらに含む。
図10〜21を参照して、アンビルアセブリ30は、アンビルヘッドアセンブリ120およびアンビル中央ロッドアセンブリ152を含む。アンビルヘッドアセンブリ120は、ポスト122、アンビルヘッド124、バックアッププレート126、切断リング128、保持具クリップ127およびアンビル129を含む。ポスト122は、アンビルヘッド124中のボアを通って中央に位置決めされる。あるいは、ポスト122は、アンビルヘッド124とともに一体に形成され得る。アンビル129は、外側環状凹部136中アンビルヘッド124上に支持され、そしてステープルを受容および変形するための複数のポケット140を含む。少なくとも1つのタブ129aがアンビル129から半径方向の外側延び、そしてアンビルヘッド124中に形成された切抜き124a内に受容されるような寸法である。タブ129aおよび切抜き124aは、アンビル129を環状凹部136内に整列するよう機能する。
図6を参照して、シェルアセンブリ31は、シェル182、プッシャーバック186、円筒形ナイフ188、およびステープルガイド192を含む。シェル182は、外側ハウジング部分194、およびアンビル中央ロッド154上のスプライン181と嵌合するための溝196aを有する内部案内部分196を含む(図10)。外側ハウジング部分194は、遠位円筒形セクション200、中央円錐形セクション20および近位のより小さな直径の円筒形セクション204を有する貫通ボア198を規定する。複数の開口部206が円錐形セクション202中に形成される。開口部206は、上記デバイスの作動の間に流体および組織通過を許容するような寸法である。一対の直径方向に対向する可撓性係合部材207が、シェル182の近位円筒形セクション204上に形成される。係合部材207は、外側チューブ14aの遠位端上に形成された開口部207a中に受容されるよう位置決めされ、シェル182を細長い本体14に固定する。外側チューブ14aの近位端中に形成された一対の開口部211は、静止ハンドル18の内壁上に形成された突出部(図示せず)を受容するような寸法であり、チューブ14aのハンドル部分12への取付けを容易にする。
図8および22〜28を参照して、カム調節部材400は、セットネジ312によって、側壁306a中に形成された凹部306b内のネジストップ306の側壁306a上に固定される。カム調節部材400は、貫通ボア404を有する円形ディスク402を含む。貫通ボア404は、ディスク402を通って偏心して形成され、そしてセットネジ312を受容する寸法である。より小さなノッチまたは穴406がまた、ディスク402中に形成され、そして調節ツール(図示せず)の先端部を受容するような寸法である。凹部306b(図22)は、前部橋台肩部または面306cおよび後部橋台面306dを含み、そしてディスク402を、ディスク402の外側エッジが、前部橋台面306cおよび後部橋台面306dと接するように受容する寸法である。
図3〜5および29を参照して、このインジケーター機構は、球根状インジケーター24、レンズカバー24aおよびスライド部材500を含む。インジケーター24は、ハンドルセクション18aおよび18bとモノリシックに形成され得る回動部材502の周りで回動可能に支持される。レンズカバー24aは、インジケーター24の上に位置決めされ、1つの実施形態では、拡大材料から形成され、インジケーター24を容易に見ることを促進する。スライド部材500は、その中に形成された細長いスロット506を有する本体部分504、遠位橋台部材または先が上を向いたリップ部分508、および近位伸長部510を含む。スライド部材500は、ハンドルセクション18aと18bとの間にスライド可能に位置決めされる。近位伸長部510は、ハンドルセクション18aおよび18bと一体に形成され得る支持構造516(図5)によって、静止ハンドル18内にスライド可能に支持される。付勢部材、例えば、コイルスプリング512が、支持構造516とスライド部材500の本体部分504との間の近位伸長部510の周りで圧縮されて位置決めされ、スライド部材500を静止ハンドル18内で遠位方向に押す。インジケーター24は、一対の下方に延びる突出部518および520を含む(図32)。スライド部材500の先が上を向いたリップ部分508は、突出部518と520との間に位置決めされ、そして、それが、静止ハンドル18内で移動するとき、突出部518と520とを係合するよう位置決めされる。デバイス10の非発射位置では、付勢部材512は、スライド部材500を遠位方向に押して、リップ部分508を突出部518との係合に移動させ、インジケーター24を第1の位置に回動し、これは、外科医に、このデバイスが接近されておらず、そして発射準備状態にない指標を提供する。
図3〜5、および30を参照して、この発射ロックアウト機構は、トリガーロック26およびロックアウト部材530を含む。トリガーロック26は、回動部材534の周りでハンドルセクション18aおよび18b中のボア532(図3)内で回動可能に支持される。1つの実施形態では、回動部材534はT形状であり、そして摩擦によりボア532の内壁に係合し、トリガーロック26の自由な回転を防ぐ。あるいは、円形、矩形などのその他の回動部材の形態が想定される。トリガーロック26の先端部26aは、発射トリガー20の本体部分76上の橋台89と91との間に位置決めされ、トリガーロック26がそのロック位置にあるとき、トリガー20の作動を防ぐ。トリガーロック26はまた、以下により詳細に論議される近位伸長部26bを含む。
図3、5、9および9Aを参照して、静止ハンドル18中に提供される触覚インジケーター機構は、ハンドルセクション18aおよび18b内に規定される垂直スロット582中にスライド可能に位置決めされる橋台部材580を含む。橋台部材580は、隆起580aおよび案内リブ580bを含む。隆起580aは、スロット582の壁に沿って形成された2つの移動止めまたは凹部582aおよび582bの1つ内に受容される寸法である。橋台部材580は、隆起580aが移動止め582a内に位置決めされる、退却(下方)位置から、隆起580aが移動止め582b内に位置決めされる、延びた(上方)位置まで移動可能である。隆起580aと、移動止め582aおよび582bとの間の係合は、橋台部材580をその個々の上方または下方位置に保持する。
外科用ステープルデバイス10の作動を、図31〜61を詳細に参照してここで説明する。
Claims (44)
- 外科用ステープル留めデバイスであって:
接近ノブおよび発射トリガーを含むハンドルアセンブリ;
該ハンドルアセンブリから遠位方向に延びる細長い本体部分;
アンビルアセンブリおよびシェルアセンブリを含むヘッド部分であって、該シェルアセンブリが複数のステープルを収容し、そして該アンビルアセンブリがアンビルヘッドおよびアンビル中央ロッドを含み、該アンビルヘッドが該アンビル中央ロッドに回動軸の周りで回動可能に固定され、そして作動位置と傾斜位置との間で移動可能であるヘッド部分;
該アンビルアセンブリを支持するためのアンビル保持具アセンブリであって、該アンビルヘッドが作動位置に移動されるか、または保持される第1の位置から、該アンビルヘッドが該作動位置から該傾斜位置に回動し得る第2の位置に移動可能であるロック部材を含むアンビル保持具アセンブリを備える、外科用ステープル留めデバイス。 - 前記アンビルヘッドが、付勢部材によって前記傾斜位置に向かって押される、請求項1に記載の外科用ステープル留めデバイス。
- 前記付勢部材がコイルスプリングである、請求項2に記載の外科用ステープル留めデバイス。
- 前記アンビル保持具アセンブリが、開口遠位端を有する長軸方向ボアを規定する本体部分およびトロカールを含み、該トロカールが、該本体部分の開口遠位端から延び、そしてロック部材を形成し、該トロカールが、進行位置と退却位置と間で長軸方向ボアに沿って移動可能であり、該進行位置が該ロック部材の第1の位置を規定し、そして該退却位置が該ロック部材の第2の位置を規定する、請求項1〜3のいずれかに記載の外科用ステープル留めデバイス。
- 前記トロカールが、トロカール付勢部材によって退却位置に押される、請求項4に記載の外科用ステープル留めデバイス。
- 前記トロカールを前記退却位置に押すためのトロカール付勢部材が、コイルスプリングである、請求項5に記載の外科用ステープル留めデバイス。
- 前記トロカールの近位端が、環状フランジを含み、そして肩部を規定する長軸方向ボアが肩部を規定し、前記トロカール付勢部材が、該トロカールの環状フランジと該長軸方向ボア内に規定される肩部との間の該トロカールの周りで該長軸方向ボア内に位置決めされ、該トロカールを該退却位置に押す、請求項5および6のいずれかに記載の外科用ステープル留めデバイス。
- 前記トロカールが、トロカールチップを含む、請求項4〜7のいずれかに記載の外科用ステープル留めデバイス。
- 前記トロカールチップが、実質的に平滑末端である、請求項8に記載の外科用ステープル留めデバイス。
- 前記身体部分上に支持されたカム部材をさらに含み、該カム部材が、前記トロカールを前記進行位置に保持するための第1の位置から、該トロカールを前記退却位置まで移動することを可能にするための第2の位置まで移動可能である、請求項5〜9のいずれかに記載の外科用ステープル留めデバイス。
- 前記カム部材が、前記身体部分に回動可能に固定される、請求項10に記載の外科用ステープル留めデバイス。
- 前記カム部材が、前記身体部分中に形成された長軸方向スロット内に回動可能に支持される、請求項10および11のいずれかに記載の外科用ステープル留めデバイス。
- 前記カム部材が、遠位フィンガーおよび近位方向に位置した凹部を含み、該遠位フィンガーが、該カム部材が、前記トロカール付勢部材の押しに対して前記進行位置に前記トロカールを保持するために第1の位置にあるとき、該トロカールの近位端上に支持されたピンを係合するよう位置決めされる、請求項10〜12のいずれかに記載の外科用ステープル留めデバイス。
- 前記カム部材の遠位フィンガーが、角度をなす面を、前記ピンと該角度をなす面との間の係合が該カム部材をその第2の位置に押すように含む、請求項13に記載の外科用ステープル留めデバイス。
- 前記ハンドルアセンブリの発射トリガーと作動可能に関連するプッシャーをさらに備え、該発射トリガーが、該プッシャーを前記細長い本体部分内で、退却位置から進行位置まで進行するように作動可能であり、前記複数のステープルを前記シェルアセンブリから発射する、請求項1〜14のいずれかに記載の外科用ステープル留めデバイス。
- 前記プッシャーが少なくとも1つのアームを含み、該アームが、前記カム部材のその第1の位置からその第2の位置への移動を、前記発射リトガーが作動されて該プッシャーをその進行位置まで移動する後まで防ぐ、請求項15に記載の外科用ステープル留めデバイス。
- 前記アンビルアセンブリが、前記アンビル中央ロッドによって移動可能に支持された第1のスライド部材および第2のスライド部材を含み、該第1のスライド部材が第1の駆動リンクによって前記回動軸の一方の側で前記アンビルヘッドに回動可能に連結され、そして該第2のスライド部材が第2の駆動リンクによって該回動軸の他方の側で該アンビルヘッドに連結され、該第1のスライド部材が該第2のスライド部材に対して移動可能であり、前記作動位置と前記傾斜位置との間で該アンビルヘッドの移動を行う、請求項1〜16のいずれかに記載の外科用ステープル留めデバイス。
- 前記第1のスライド部材と第2のスライド部材とを互いに対して押し、前記アンビルヘッドを前記傾斜位置に位置決めする、請求項17に記載の外科用ステープル留めデバイス。
- 前記第1のスライド部材および第2のスライド部材を付勢する部材が、該第1のスライド部材および第2のスライド部材との間に位置決めされ、該第1のスライド部材および第2のスライド部材を押して離す、請求項18に記載の外科用ステープル留めデバイス。
- 前記アンビル保持具の本体部分が、実質的にコークの瓶形態を有する部分を含む、請求項1〜19のいずれかに記載の外科用ステープル留めデバイス。
- 前記接近ノブが、駆動ネジに作動可能に連結され、そして該駆動ネジが前記アンビル保持具アセンブリに作動可能に連結され、ここで、該接近ノブが、約2回転から約2回転半まで回転可能であり、前記アンビルアセンブリをその接近位置から、前記シェルアセンブリから前記アンビルヘッドがその傾斜位置に移動するに十分な距離離れた位置に移動する、請求項1〜20のいずかに記載の外科用ステープル留めデバイス。
- 傾斜可能なアンビルアセンブリであって:
中央ロッド;
ハウジング、ポスト、ステープル変形ポケットを有するアンビルプレート、およびバックアップ部材を含むヘッドアセンブリであって、該ヘッドアセンブリが、回動軸の周りで該中央ロッドに回動可能に固定され、そして作動位置と傾斜位置との間で該中央ロッドに対して回動し、ここで、該バックアップ部材が、該ポストの周りを、該バックアップ部材の一部が、該ヘッドアセンブリの該作動位置から該傾斜位置までの移動を防ぐよう位置決めされる第1の位置から、該バックアップ部材が位置決めされる第2の位置まで移動可能であり、該ヘッドアセンブリの該中央ロッドに対する該作動位置から該傾斜位置までの移動を許容する、ヘッドアセンブリを備え、そしてさらに、該ヘッドアセンブリ中に位置決めされた保持具部材を含み、該バックアップ部材の該第1の位置から該第2の位置への移動を、該バックアップ部材に所定の力が付与されるまで防ぐ、傾斜可能なアンビルアセンブリ。 - 前記保持具部材が、前記ハウジングと前記バックアップ部材との間の前記ヘッドアセンブリ中に位置決めされる変形可能な部材を含む、請求項22に記載の傾斜可能なアンビルアセンブリ。
- 前記ハウジングおよび前記ポストが環状の凹部を規定し、前記保持具部材が、該環状の凹部中に位置決めされる、請求項22および23のいずれかに記載の傾斜可能なアンビルアセンブリ。
- 前記中央ロッドが長軸方向軸を規定し、そして前記回動軸が該中央ロッドの長軸方向軸から斜めに置かれる、請求項22〜24のいずれかに記載の傾斜可能なアンビルアセンブリ。
- 前記中央ロッドが長軸方向軸を規定し、そして前記回動軸が該中央ロッドの長軸方向軸と交差する、請求項22〜24のいずれかに記載の傾斜可能なアンビルアセンブリ。
- 前記バックアップ部材が、切断リングおよびバックアッププレートを含み、該切断リングが、該バックアッププレートの近位方向面に固定される、請求項22〜26のいずれかに記載の傾斜可能なアンビルアセンブリ。
- 前記バックアッププレートが、前記バックアップ部材がその第1の位置にあり前記ヘッドアセンブリの前記中央ロッドに対する回動移動を防ぐとき、該中央ロッドの遠位方向面を係合するよう位置決めされた少なくとも1つのフィンガーを含む、請求項22〜27のいずれかに記載の傾斜可能なアンビルアセンブリ。
- 前記切断リングが、前記バックアッププレートより柔軟な材料から形成される、請求項27および28のいずれかに記載の傾斜可能なアンビルアセンブリ。
- 前記切断リングがポリエチレンから形成され、そして前記バックアッププレートが金属から形成される、請求項29に記載の傾斜可能なアンビルアセンブリ。
- 中央ロッドを有する傾斜可能なアンビルアセンブリ、および該中央ヘッドに回動可能に固定され、そして作動位置から傾斜位置まで回動するヘッドアセンブリを有するアンビルアセンブリにおいて、該ヘッドアセンブリが、ハウジング、ポスト、アンビルプレートおよびバックアップ部材を含み、ここで、該バックアップ部材が該ポストの周りを、該ヘッドアセンブリの該作動位置から該傾斜位置までの回動移動を防ぐ第1の位置から、該ヘッドアセンブリの該作動位置から該傾斜位置までの移動を許容する第2の位置まで移動可能であり、改良が、該バックアップ部材のその第1の位置からその第2の位置までの移動を、所定の力が該バックアップ部材に付与されるまで防ぐ位置で該ヘッドアセンブリ上に支持された保持具部材を含む、傾斜可能なアンビルアセンブリ。
- 前記所定の力が、約10ポンドと約90ポンドとの間である、請求項22〜31のいずれかに記載の傾斜可能なアンビルアセンブリ。
- 前記保持具部材が、前記ハウジングと前記バックアップ部材との間に位置決めされた変形可能な部材を含む、請求項22〜32のいずれかに記載の傾斜可能なアンビルアセンブリ。
- 前記保持具部材が、前記ポストおよび複数の変形可能なタブの周りに位置決めされる環状本体を含む、請求項22〜33のいずれかに記載の傾斜可能なアンビルアセンブリ。
- 前記バックアップ部材が、前記複数の変形可能なタブに、該バックアップ部材の前記第1の位置から前記第2の位置への移動が、該タブの変形を行うように接するよう位置決めされる、請求項34に記載の傾斜可能なアンビルアセンブリ。
- 外科用ステープル留めデバイスであって:
接近ノブおよび発射トリガーを含むハンドルアセンブリ;
該ハンドルアセンブリから遠位方向に延びる細長い本体部分;
該細長い本体部分の遠位端上に支持されたヘッド部分であって、アンビルアセンブリおよびその中に支持された複数のステープルを有するシェルアセンブリを含み、該アンビルアセンブリが、該シェルアセンブリに対して、該接近ノブの作動に応答して間隔を置かれた位置と接近位置との間を移動可能であるヘッド部分;
該接近ノブを含む接近機構であって、該アンビルアセンブリに、該接近ノブの作動が該アンビルアセンブリの該シェルアセンブリに対する該間隔を置かれた位置と接近位置との間の移動を行うように作動可能に連結される接近機構;
該ハンドルアセンブリ上に位置決めされ、そしてロック位置から非ロック位置まで移動可能であるトリガーロックであって、ここで、そのロック位置において、該発射トリガーの作動を防ぐトリガーロック;および
該トリガーロック作動可能に連結され、そして該トリガーロックが第2の非ロック位置にあるとき、該アンビルアセンブリの該接近位置から該離れた位置への移動を防ぐよう位置決めされるロックアウト機構、を備える、外科用ステープル留めデバイス。 - 前記トリガーロックが、回動部材の周りで前記ハンドルアセンブリ上に回動可能に支持され、そして前記ロックアウト機構が、ボアを規定し、かつロッキングタブを有するロックアウトプレートを含み、該ボアが、該回動部材を、該ロックアウトプレートが、該回動部材の周りを、該ロックタブが該アンビルアセンブリの該シェルアセンブリに対する前記接近位置と非接近位置との間の移動を許容するよう位置決めされる第1の位置から、該アンビルアセンブリの該シェルアセンブリに対する該接近位置と該非接近位置との間の移動を防ぐ第2の位置まで回転可能であるように受容するような寸法である、請求項36に記載の外科用ステープル留めデバイス。
- 前記接近機構が、前記接近ノブに作動可能に連結された近位端、および前記アンビルアセンブリに作動可能に連結された遠位端を有する直線的に進行可能な駆動ネジを含み、前記ロックアウトプレートのロックタブが、該ロックアウトプレートがその第2の位置にあるとき、該駆動ネジの直線的移動を妨害するように位置決めされる、請求項37に記載の外科用ステープル留めデバイス。
- 前記駆動ネジ上に位置決めされたネジストップをさらに含み、該ネジストップが、前記ロックアウトプレートがその第2の位置にあるとき、該ロックアウトプレートのロックタブを係合するよう位置決めされる係合部材を含む、請求項38に記載の外科用ステープル留めデバイス。
- 前記ロックアウトプレートが、前記トリガーロックに、該トリガーロックのそのロック位置からその非ロック位置までの移動が該ロックアウトプレートのその第1の位置からその第2の位置への移動を行うように離脱可能に接続される、請求項36〜39のいずれかに記載の外科用ステープル留めデバイス。
- 前記ロックアウト機構が、前記ロックアウトプレートを前記トリガーロックに向かって押すための付勢部材を含む、請求項37〜40のいずれかに記載の外科用ステープル留めデバイス。
- 前記ロックアウトプレートが凹面を含み、そして前記トリガーロックが一対の間隔を置いた突出部を含み、該突出部の各々が該凹面内に独立に受容可能であり、該ロックアウトプレートを該トリガーロックに対して2つの別個の位置の1つで離脱可能に接続する、請求項37〜41のいずれかに記載の外科用ステープル留めデバイス。
- 前記発射トリガーが離脱部材を含み、そして前記ロックアウトプレートが離脱タブを含み、該離脱部材が、前記発射トリガーの作動に際し、該放出タブを係合するよう位置決めされ、該ロックプレートを、前記外科用ステープル留めデバイスが発射されるとき、その第2の位置からその第1の位置に自動的に移動する、請求項37〜42のいずれかに記載の外科用ステープル留めデバイス。
- 外科用ステープル留めデバイスであって:
静止ハンドル部分、該静止ハンドル部分に回動可能に固定された発射トリガーおよび該静止ハンドル部分の近位端に回転可能に固定された接近ノブを含むハンドルアセンブリ;
該ハンドルアセンブリから遠位方向に延びる細長い本体部分;および
アンビルアセンブリおよびシェルアセンブリを含むヘッド部分であって、該シェルアセンブリが複数のステープルを収容し、該アンビルアセンブリが、該接近ノブの間隔を置いた位置と接近した位置との間の作動に応答して、該シェルアセンブリに対して移動可能であるヘッド部分;を備え、
ここで、該発射トリガーが、該静止ハンドルに向かって回動し、該複数のステープルを該シェルアセンブリから発射し、該発射トリガーが、該接近ノブの遠位端の近位方向に位置決めされる近位端を有する、外科用ステープル留めデバイス。
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