JP7460717B2 - 電気外科的密封・切開システム - Google Patents
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Description
本願は、2014年5月30日に出願された米国特許仮出願第62/005,009号及び2014年5月30日に出願された米国特許仮出願第62/004,980号の権益主張出願であり、これらの米国特許仮出願を参照により引用し、これらの開示内容全体を本明細書の一部とする。
Claims (15)
- 電気外科的システムであって、
電気外科的器械を含み、
当該電気外科的器械は、
下側ジョー部材、下側導電性パッド、切断電極、及び、絶縁体を含む下側ジョーであって、前記絶縁体は、前記下側導電性パッド及び前記切断電極を前記下側ジョー部材から電気的に絶縁し、前記下側導電性パッド及び前記切断電極は同一の極性を有し、前記下側ジョー部材は前記下側導電性パッド及び前記切断電極に対して逆の極性を有し、前記下側ジョー部材は傾斜した上部外面を有し、前記下側導電性パッドは傾斜した上部外面を有し、前記下側ジョー部材及び前記下側導電性パッドの傾斜した上部外面は、互いの鏡像である、下側ジョーと、
上側ジョー部材、上側導電性パッド、絶縁パッド、及び、圧縮可能なランディングパッドを含む上側ジョーであって、上側ジョー部材及び上側導電性パッドが逆の極性を有し、前記上側ジョー部材が傾斜した下部外面を有し、前記上側導電性パッドが傾斜した下部外面を有し、前記上側ジョー部材の傾斜した前記下部外面、及び、前記上側導電性パッドが互いの鏡像であり、前記圧縮可能なランディングパッド及び前記絶縁パッドが前記上側導電性パッドを前記上側ジョー部材から電気的に絶縁し、前記圧縮可能なランディングパッドは、前記上側ジョー部材及び前記上側導電性パッドよりも剛性が低く、前記圧縮可能なランディングパッドは、前記上側ジョーと前記下側ジョーとの間の組織の電気的分離を容易にし、かつ、前記圧縮可能なランディングパッドと前記下側ジョーとの間に接触および圧力が生じるように構成され、前記圧縮可能なランディングパッドは、前記下側ジョー部材および前記導電性パッドの傾斜した下部外面に対して平坦かつ非平行な下面を有する、上側ジョーと、を備え、
前記下側ジョーが、前記上側ジョーに対向し、かつ、前記上側ジョーと下側ジョーの間で組織を把持するために間隔をあけた位置と近接した位置の間で移動するように回動可能に配置され、前記上側導電性パッド及び前記下側導電性パッドが互いに同一の極性を持ち、前記上側ジョー部材及び前記下側ジョー部材が互いに対して同一の極性を持つ、
電気外科的システム。 - 前記切断電極は、前記上側ジョーと前記下側ジョーが間隔をあけた位置にある開放及び溶融作業中にのみアクティブになるように構成され、アクティブになると、前記切断電極は、前記下側ジョー部材の極性と反対の極性を有し、400ボルトより大きい電位差を前記下側ジョーの切断電極及び前記下側ジョーの下側ジョー部材とに生成し、前記上側ジョーと前記下側ジョーとの間には生成しない請求項1に記載の電気外科用システム。
- 前記上側ジョーと前記下側ジョーが近接した位置にある状態で、前記圧縮可能なランディングパッドは前記下側ジョーの前記下側ジョー部材と前記下側ジョーの前記下側導電性パッドへ圧縮される、請求項1又は2に記載の電気外科用システム。
- 前記上側ジョー部材、前記上側導電性パッド、前記絶縁パッド、及び前記圧縮可能なランディングパッドは、一緒に成形されて単一の構造体を形成する、請求項1~3のいずれか1項に記載の電気外科的システム。
- 前記上側ジョー部材が前記圧縮可能なランディングパッドよりも剛性が高く、前記絶縁パッドが非導電性材料で作られ、前記上側ジョー部材または前記上側導電性パッドと同じかそれよりも剛性が高い、請求項4に記載の電気外科的システム。
- 前記上側ジョー部材は、前記上側導電性パッドの断面形状および前記圧縮可能なランディングパッドの断面形状とは異なり、より大きな断面形状を有し、前記圧縮可能なランディングパッドの断面形状は、前記上側導電性パッドの断面形状とは異なる、請求項1~5のいずれか1項に記載の電気外科的システム。
- 前記下側ジョー部材は、前記下側導電性パッドの断面形状とは異なり、より大きな断面形状を有する、請求項1~6の何れか1項に記載の電気外科的システム。
- 前記下側ジョー部材の前記下側ジョーの中心部分付近の部分と前記下側ジョーの中心部分付近の前記下側導電性パッドの部分とは、ともに平坦であり、前記圧縮可能なランディングパッドに接触して圧縮するように構成されている、請求項1~7の何れか1項に記載の電気外科的システム。
- 前記下側ジョーの中央部分は、電極を有しない、請求項8に記載の電気外科的システム。
- さらに、絶縁ワイヤを有し、当該絶縁ワイヤが、前記上側ジョーの穴を貫通して前記上側ジョーの前記絶縁パッドのスロット内に延び、前記上側ジョーの前記絶縁パッドの遠位端部まで延び、前記上側ジョーの上側導電パッドに延びる、請求項9に記載の電気外科的システム。
- 前記電気外科的器械に取り外し可能に接続された電気外科的発生器をさらに備え、該電気外科的発生器は、該電気外科的器械にRFエネルギーを供給するRF増幅器を備える、請求項1~10の何れか1項に記載の電気外科的システム。
- 供給されたRFエネルギーが、前記上側導電性パッドと前記下側ジョー部材との間、前記上側ジョー部材と前記下側導電性パッドとの間、および前記下側導電性パッドと前記下側ジョー部材との間に供給されて、0℃~100℃の間の温度に到達させる、請求項11の電気外科用システム。
- 前記RF増幅器が、供給されるRFエネルギーの電圧を増加させながら、前記上側ジョーと前記下側ジョーとの間の温度を100℃未満に維持するようにRFエネルギーを供給する、請求項12記載の電気外科用システム。
- 前記電気外科的発生器は、AC主入力に取り外し可能に接続され、前記AC主入力からのAC電圧を変換してDC電圧を前記RF増幅器に供給するように構成された電源からなり、前記電源からのDC電圧を供給されるRFエネルギーとして前記電気外科的器械に供給される350kHzの周波数の正弦波形に変換する請求項11記載の電気外科用システム。
- 供給されたRFエネルギーが、前記上側導電性パッドと前記下側ジョー部材との間、および、前記上側ジョー部材と前記下側導電性パッドとの間に供給されて、60℃から100℃の間の温度に到達させる、請求項14に記載の電気外科用システム。
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WO2015184446A2 (en) | 2015-12-03 |
WO2015184446A3 (en) | 2016-06-09 |
JP2017520360A (ja) | 2017-07-27 |
KR102420273B1 (ko) | 2022-07-13 |
ES2682950T3 (es) | 2018-09-24 |
CA2949242A1 (en) | 2015-12-03 |
AU2021245200B2 (en) | 2023-09-14 |
EP3148465A2 (en) | 2017-04-05 |
AU2015266619A1 (en) | 2016-11-17 |
US20170042604A1 (en) | 2017-02-16 |
EP3148465B1 (en) | 2018-05-16 |
KR20220101749A (ko) | 2022-07-19 |
US10792092B2 (en) | 2020-10-06 |
JP2024081695A (ja) | 2024-06-18 |
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