JP2005103282A - 牽引バイアス型ラチェット機構を含む多数回ストローク式発射機構を有する外科ステープル器具 - Google Patents
牽引バイアス型ラチェット機構を含む多数回ストローク式発射機構を有する外科ステープル器具 Download PDFInfo
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Abstract
【解決手段】上記ハンドルは上記エンド・エフェクタを発射する(すなわち、ステープル処理および切断を行なう)ために必要とされる力の量を減少するために多数回の発射ストロークを行なう。さらに、一定のリンク型の伝動機構は必要とされるハンドルの長手方向の長さを減少すると共に、発射のために直線状になる時に一定の剛性の強力な構成を達成する。また、一定の牽引バイアス型の発射機構は一定の抗バックアップ機構と協働して上記直線状のリンク型ラックの駆動における拘束を回避し、発射中の閉鎖トリガの解除を阻止する一定のロックアウト機構を伴う。さらに、一定の外部指示手段が外科医に発射の進行の程度についてのフィードバック情報を与えると共に、一定の手動による後退の能力を与える。
【選択図】図1
Description
本特許出願は本特許出願と同日に出願されている4件の同時係属で共有されている特許出願に関連しており、これらのそれぞれの開示はそれぞれの全体において本明細書に参考文献として含まれており、これら4件の特許出願はそれぞれ以下の発明の名称を付けられている。
「サージカル・ステープリング・インストルメント・ウィズ・マルチストローク・ファイアリング・インコーポレイティング・アン・アンチ−バックアップ・メカニズム(SURGICAL STAPLING INSTRUMENT WITH MULTISTROKE FIRING INCORPORATING AN ANTI-BACKUP MECHANISM)」、フレデリック E.シェルトン(Frederick E. Shelton)、マイク・セトサー(Mike Setser)に譲渡されている米国特許出願第 号、
「サージカル・ステープリング・インストルメント・ハビング・マルチストローク・ファイアリング・ウィズ・オープニング・ロックアウト(SURGICAL STAPLING INSTRUMENT HAVING MULTISTROKE FIRING WITH OPENING LOCKOUT)」、フレデリック E.シェルトン(Frederick E. Shelton)、ジェフリー S.スウェイズ(Jeffrey S. Sways)、ダグラス B.ホフマン(Douglas B. Hoffman)に譲渡されている米国特許出願第 号、
「サージカル・ステープリング・インストルメント・インコーポレイティング・ア・ファイアリング・メカニズム・ハビング・ア・リンクド・ラック・トランスミッション(SURGICAL STAPLING INSTRUMENT INCORPORATING A FIRING MECHANISM HAVING A LINKED RACK TRANSMISSION)」、ジェフリー S.スウェイズ(Jeffrey S. Sways)、フレデリック E.シェルトン四世(Frederick E. Shelton IV)に譲渡されている米国特許第 号、および
「サージカル・ステープリング・インストルメント・インコーポレイティング・ア・マルチストローク・ファイアリング・ポジション・インジケータ・アンド・リトラクション・メカニズム(SURGICAL STAPLING INSTRUMENT INCORPORATING A MULTISTROKE FIRING POSITION INDICATOR AND RETRACTION MECHANISM)」、ジェフリー S.スウェイズ(Jeffrey S. Sways)、フレデリック E.シェルトン四世(Frederick E. Shelton IV)に譲渡されている米国特許第 号。
多数回ストローク式の発射動作を行なうことが可能な一定のハンドル20の利点は図2乃至図6において示されているエンド・エフェクタ12等のような多数の器具への適用性を含む。このエンド・エフェクタ12は一定の垂直方向に突出しているアンビルの特徴部分56(図4)よりも先端側の一対の横方向に突出しているアンビル・ピボット・ピン54を含む一定のアンビル基端部52に接続しているアンビル面50(図2,4,6)を最初に含むことによる上記ハンドル20による閉鎖動作(図2乃至図6において示されていない)に応じて動作する。上記のアンビル・ピボット・ピン54は細長い通路16に対してアンビル14を開閉するためにその細長い通路16の中の腎臓型の開口部58の中に移動する。また、上記アンビルの特徴部分56は閉鎖チューブ24の先端部62におけるタブ孔60の中に内側に延在している一定の屈曲タブ59に係合しており、この後者はアンビル面50を押す一定の先端側エッジ部分64の中に先端側に延出している。これにより、閉鎖チューブ24がその開口位置から基端側に移動する時に、その閉鎖チューブ24の屈曲タブ59がアンビルの特徴部分56を基端側に引き動かして、アンビル・ピボット・ピン54が通路16の腎臓形の開口部58に追随して動き、アンビル14が同時に基端側に移動してその開口位置まで上方に回転する。その後、上記閉鎖チューブ24が先端側に移動すると、タブ孔60がアンビルの特徴部分56から離れて先端側エッジ部分64がアンビル面50を押してアンビル14を閉じる。
図7および図8において、外科ステープル用および切断用の器具10のハンドル20が詳細に示されていて、高められた強度、減少されたハンドルの寸法、最少化された拘束等のような種々の特徴を与える一定の連結型の伝動発射機構150が例示されている。
特に、図10において、上記リンク型ラック200が多数の利点を示すためにさらに詳細に示されている。各リンク196a乃至dはピストル・グリップ36の中への下方の基端側の回転のためにそれぞれの隣接しているリンク196a乃至dに対してピン留めされている。なお、上記の方向に屈曲可能であるが、このリンク型ラック200は一定の円柱方向の負荷、特に、先端側の各リンク196a乃至dを上方に押し曲げようとする一定の負荷に対して一定の剛性の構造を形成する。特に、各リンク196a乃至dは一定の下部において横方向の貫通穴302を有するオス形の延伸部分300の中に基端側に伸びている。各リンク196a乃至dにおける左側304は歯付きの表面部分222を含み、この左側部分304と平行な右側部分306はこれらの間に傾斜した中央トラック282を定めており、この中央トラック282は上記オス形の延伸部分300の中に伸びている。
図11乃至図14において、上記リンク伝動型の発射機構150が一定のシーケンスにおいて示されており、このシーケンスは上記の牽引バイアス機構210(すなわち、爪270、バイアス・ホイール278、およびバイアス・ランプ280)が上記発射トリガ34の移動方向に積極的に応じる様式を示している。さらに、バイアス・ホイール278はバイアス・ランプ280に対して摩擦を伴って接触するので、このバイアス・ホイール278は爪270の完全な脱離または係合が達成される時に摺動する。
上述したように、抗バックアップ機構250は各発射ストロークの間に係止して、発射の移動が達成されるか使用者が引き戻すことを選択するまで、発射ロッド32および発射機構150が後退することを阻止する。図15において、抗バックアップ機構250が一定の係止状態の位置で示されている。この場合に、抗バックアップ解除レバー248は最も基端側の位置にあり、抗バックアップ・カム・スロット・チューブ252を回転して抗バックアップ・カム・チューブ268に係合させることにより一定の最小の長手方向の長さを形成して係止プレート266のための一定の増大した空間部分を形成している。この係止プレート266は抗バックアップ圧縮ばね264により示されている角度でその先端部分が傾いており、図16において示されているように発射ロッド32の上にかみ合っている。
図26において、外科ステープル用および切断用の器具10がその初期的な開口状態にあり、閉鎖トリガ26および発射トリガ34が前方にあって、リンク型ラック200が後退している。上述したように、この無発射状態において、指示歯車230はその円形の隆起部242における開口部240を係止アーム172の上面部244に対して配置しており、この係止アーム172は通常においてハウジング構造体182と閉鎖解除ボタン38の内側の先端面178との間において圧縮ばね180の作用により開口部240から下側に回転する。図26においては、閉鎖解除ボタン38が押されていて、上記の上面部244が開口部240の中に入っている。さらに、図27において、上記の閉鎖トリガ26および係止アーム172はこの閉鎖トリガ26のピストル・グリップ36に対する閉鎖および発射トリガ34の発射のための位置への揺動の後に挟まれて当接している。この場合に、伸びた閉鎖ばね180により分かるように、閉鎖解除ボタン38は押されていない。この結果、上記係止アーム172の上面部244は円形の隆起部242の下方に揺動しており、指示歯車230は無係止状態になって反時計方向に自由に回転する。この係止アーム172の下方への移動は指示歯車230および接続しているリンク伝動型発射機構150を無係止状態にして、発射トリガ34を作動可能にする。これにより、指示歯車230がその後の発射を伴って回転し続けている時に、閉鎖解除ボタン38は挟まれた状態の閉鎖トリガ26を解除することを妨げられる。
図28において、一定の外科ステープル用および切断用の器具610はいずれかの手により容易に作動できる一定の差込式の発射レトラクタとして機能する一定の上部接触可能な後退レバー642を構成するために上方に延出している代替的な指示装置640により置き換えられている指示後退ノブを有している。この器具は先端側に移動している閉鎖トリガ26および発射トリガ34および開口状態のエンド・エフェクタ12により示されているように、開いた無発射状態で示されている。発射が開始されていない場合に、上記の後退レバー642は通常においてハンドル・ハウジング154に近接して先端側に回転している。この指示装置640は既に説明されているように前述の遊び歯車220および一定の発射機構150に連結可能であり(図示されていない)、この場合に、その後退レバー642は上記連結型の伝動機構が発射する時に基端側に回転して、その発射の視覚的な指示を行なうと共に一定の回転式の位置指示装置としてこれに一定の手動による先端側の力を加えることにより自動的な後退を補助する一定の手段を可能にしており、この実施形態においてこのレバー642を上記の遊び歯車220に取り付けることが必要であるのでその回転の方向を逆にする必要がある。
(1)前記エンド・エフェクタが
前記軸部に接続している一定の細長い通路、
前記細長い通路に旋回可能に連結していて組織を挟むための一定のアンビル、および
前記細長い通路の中に受容されている一定のステープル・カートリッジを含み、
前記発射部材が前記ステープル・カートリッジを作動して前記挟まれている組織の中にステープルを形成するように操作可能に構成されている一定の発射バーの中に先端側において到達している請求項2に記載の外科器具。
(2)さらに、前記ステープル装置の一定の閉鎖手段を備えている実施態様(1)に記載の外科器具。
(3)前記発射機構が摩擦によりバイアス力を加えられて前記発射部材が前記帰還方向に移動する時に当該発射部材から分離する請求項1に記載の外科器具。
(4)さらに、前記発射部材に対して移動可能に連結していて前記発射機構が作動している時に当該発射機構に対して操作可能に連結する一定のラックを含む請求項1に記載の外科器具。
(5)前記ハンドルが前記発射機構にバイアス力を加えて前記発射制御装置の前記発射方向への移動に応じて前記発射部材に対して連結して係合させるための少なくとも1個の摩擦面を含む請求項1に記載の外科器具。
(7)前記発射制御装置がさらに一定のトリガを含み、このトリガの一定の上側部分が手動動作の間に一定の弓形状に移動し、前記摩擦面およびバイアス面から成る群における選択された1個の内の少なくとも一部分が円弧状である実施態様(6)に記載の外科器具。
(8)前記摩擦面およびバイアス面から成る群における選択された1個が変形可能である実施態様(6)に記載の外科器具。
(9)前記摩擦面およびバイアス面から成る群における選択された1個が一定のエラストマーを含む実施態様(8)に記載の外科器具。
(10)前記摩擦面およびバイアス面から成る群における選択された1個が平滑である実施態様(6)に記載の外科器具。
(12)前記摩擦面およびバイアス面から成る群における選択された1個が約0.04乃至約0.4の一定の摩擦係数を有する実施態様(7)に記載の外科器具。
(13)前記バイアス面が一定のホイールを含む請求項(6)に記載の外科器具。
(14)外科器具において、
一定の長手方向に沿う発射動作に応じて一定の外科手術を行なう一定のエンド・エフェクタ、
前記エンド・エフェクタに先端側において接続している一定の軸部、
前記軸部により摺動可能に受容されていて、前記発射動作を前記エンド・エフェクタに伝達する一定の発射部材、および
前記軸部および発射部材に基端側において接続している一定のハンドルを備えており、このハンドルが
前記発射部材に先端側において連結している一定のラック、
一定のオペレータに応じて一定の発射方向および一定の帰還方向に移動する一定の発射制御装置、および
前記発射方向に応じて摩擦によりバイアス力が加えられて前記発射制御装置を前記ラックに連結することにより前記発射動作を賦与し、前記帰還方向に応じて摩擦によりバイアス力が加えられて前記発射制御装置を前記ラックから分離する一定の爪を含む一定の発射機構を含む外科器具。
(15)前記エンド・エフェクタが前記長手方向に沿う発射動作に応じてステープル処理の外科手術を行なう一定のステープル装置を含む実施態様(14)に記載の外科器具。
前記軸部に接続している一定の細長い通路、
前記細長い通路に旋回可能に連結していて組織を挟むための一定のアンビル、および
前記細長い通路の中に受容されている一定のステープル・カートリッジを含み、
前記発射部材が前記ステープル・カートリッジを作動して前記挟まれている組織の中にステープルを形成するように操作可能に構成されている一定の発射バーの中に先端側において到達している実施態様(15)に記載の外科器具。
(17)外科器具において、
一定の長手方向に沿う発射動作に応じて一定の外科手術を行なう一定のエンド・エフェクタ、
一定の使用者に応じて前記発射動作を行なうように操作可能に構成されている一定の発射アクチュエータ、および
前記発射アクチュエータの発射動作を前記エンド・エフェクタに摩擦により連結するための一定の発射手段を備えている外科器具。
12 エンド・エフェクタ
14 アンビル
16 細長い通路
18 軸部
20 ハンドル
22 実行部分
24 閉鎖チューブ
28 フレーム
30 回転ノブ
32 発射ロッド
34 多数回ストローク式発射トリガ
36 ピストル・グリップ
38 閉鎖解除ボタン
40 指示後退ノブ
42 抗バックアップ解除ボタン
50 アンビル面
66 発射トラフ部材
76 発射バー
78 案内部材
80 E型ビーム
82 ステープル・カートリッジ
88 ウエッジ・スレッド・ドライバ
90 ステープル・ドライバ
92 ステープル
96 ステープル孔
98 ステープル形成溝
104 切断面
112 アンビル・ポケット
114 アンビル・スロット
150 リンク伝動型発射機構
152 閉鎖トリガ・ピン
154 ハンドル・ハウジング
156 右半分外殻部
158 左半分外殻部
172 係止アーム
180 圧縮ばね
182 ハウジング構造
192 スチール・バンド
196 リンク
200 ラック
202 発射トリガ・ピン
210 後退バイアス機構
220 遊び歯車
222 歯付き状面部
230 指示歯車
242 円形リッジ
248 抗バックアップ解除レバー
250 抗バックアップ機構
260 カム・スロット・チューブ・ピン
266 抗バックアップ・プレート
268 抗バックアップ・カム・チューブ
270 爪
278 バイアス・ホイール
280 バイアス・ランプ
282 傾斜状の中央トラック
300 オス形延出部
310 ピボット・ピン
400 フレーム基端部
410 カム・スロット・チューブのカム面
430 湾曲状ランプ
440 水平スロット
610 外科ステープル用および切断用器具
640 指示装置
642 後退レバー
650 別の発射機構
660 指示歯車
662 第1の一時停止領域
664 第2の一時停止領域
668 歯付き領域
670 湾曲状の歯部
Claims (2)
- 外科器具において、
一定の長手方向に沿う発射動作に応じて一定の外科手術を行なう一定のエンド・エフェクタ、
前記エンド・エフェクタに先端側において接続している一定の軸部、
前記エンド・エフェクタに前記発射動作を伝達するための前記軸部の中における一定の発射部材、および
前記軸部および発射部材に基端側において接続している一定のハンドルを備えており、このハンドルが
一定のハウジング、
一定の発射方向および反対側の帰還方向への一定のオペレータによる手動移動に対応して構成されている一定の発射制御装置、および
摩擦によりバイアス力が加えられて前記発射制御装置が前記発射方向に移動する時に前記発射部材に対して連結する一定の発射機構を含む外科器具。 - 前記エンド・エフェクタが前記長手方向に沿う発射動作に応じてステープル処理の外科手術を行なう請求項1に記載の外科器具。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US673662 | 1984-11-21 | ||
US10/673,662 US7000819B2 (en) | 2003-09-29 | 2003-09-29 | Surgical stapling instrument having multistroke firing incorporating a traction-biased ratcheting mechanism |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005103282A true JP2005103282A (ja) | 2005-04-21 |
JP4954460B2 JP4954460B2 (ja) | 2012-06-13 |
Family
ID=34313950
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004285041A Active JP4954460B2 (ja) | 2003-09-29 | 2004-09-29 | 牽引バイアス型ラチェット機構を含む多数回ストローク式発射機構を有する外科ステープル器具 |
Country Status (9)
Country | Link |
---|---|
US (1) | US7000819B2 (ja) |
EP (1) | EP1520522B1 (ja) |
JP (1) | JP4954460B2 (ja) |
CN (1) | CN1628617B (ja) |
AU (2) | AU2004216571A1 (ja) |
BR (1) | BRPI0405218B8 (ja) |
CA (1) | CA2482704C (ja) |
MX (1) | MXPA04009527A (ja) |
PL (1) | PL1520522T3 (ja) |
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- 2004-09-28 AU AU2004216571A patent/AU2004216571A1/en not_active Abandoned
- 2004-09-28 CA CA2482704A patent/CA2482704C/en not_active Expired - Fee Related
- 2004-09-29 BR BRPI0405218A patent/BRPI0405218B8/pt active IP Right Grant
- 2004-09-29 MX MXPA04009527A patent/MXPA04009527A/es active IP Right Grant
- 2004-09-29 EP EP04255988.0A patent/EP1520522B1/en active Active
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Also Published As
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JP4954460B2 (ja) | 2012-06-13 |
CA2482704C (en) | 2012-06-12 |
CA2482704A1 (en) | 2005-03-29 |
AU2011202438B2 (en) | 2012-06-21 |
EP1520522A1 (en) | 2005-04-06 |
BRPI0405218A (pt) | 2005-06-07 |
BRPI0405218B1 (pt) | 2014-12-09 |
AU2011202438A1 (en) | 2011-06-16 |
CN1628617A (zh) | 2005-06-22 |
EP1520522B1 (en) | 2017-10-18 |
MXPA04009527A (es) | 2005-07-05 |
US20050067458A1 (en) | 2005-03-31 |
AU2004216571A1 (en) | 2005-04-14 |
US7000819B2 (en) | 2006-02-21 |
BRPI0405218B8 (pt) | 2021-06-22 |
CN1628617B (zh) | 2010-05-26 |
PL1520522T3 (pl) | 2018-02-28 |
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