JP6318312B2 - 処置具 - Google Patents
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- JP6318312B2 JP6318312B2 JP2017547027A JP2017547027A JP6318312B2 JP 6318312 B2 JP6318312 B2 JP 6318312B2 JP 2017547027 A JP2017547027 A JP 2017547027A JP 2017547027 A JP2017547027 A JP 2017547027A JP 6318312 B2 JP6318312 B2 JP 6318312B2
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/32—Surgical cutting instruments
- A61B17/320068—Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
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- A61B2017/00017—Electrical control of surgical instruments
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- A61B2017/00039—Electric or electromagnetic phenomena other than conductivity, e.g. capacity, inductivity, Hall effect
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- A61B17/00—Surgical instruments, devices or methods
- A61B2017/0042—Surgical instruments, devices or methods with special provisions for gripping
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- A61B2017/0046—Surgical instruments, devices or methods with a releasable handle; with handle and operating part separable
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- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00607—Coagulation and cutting with the same instrument
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- A61B2018/00773—Sensed parameters
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00994—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body combining two or more different kinds of non-mechanical energy or combining one or more non-mechanical energies with ultrasound
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Description
本発明の第1実施形態について、図1乃至図7を参照して説明する。
図1に示すように、処置具11は、ハンドピース12と、電源装置13と、ハンドピース12と電源装置13とを接続するケーブル14と、を備える。電源装置13は、ハンドピース12の操作ボタン15(操作部)の操作に伴いハンドピース12にエネルギーを供給できる。なお、本実施形態では、ハンドピース12に設けられるプローブ16の長手方向Cに平行な2方向の一方を先端方向C1とし、先端方向C1とは反対方向を基端方向C2として説明を進める。
第1の共振周波数≦第3の共振周波数≦第2の共振周波数 … 式(1)
の関係を満たす。なお、上記したフロントマス部32の第1の共振周波数、プローブ16の第2の共振周波数、および組み合わせた全体の第3の共振周波数の各数値は、一例であり、式(1)の関係を満たすように各共振周波数を適宜に設定できる。
周波数差分=(第2の共振周波数)−(第1の共振周波数)
の式によって算出できる。境界部B(接続部)における超音波振動の振幅は、15μmとした。異音の有無および異音の大きさの評価については、人間の耳で聞いたときに、小さいと感じたか或いは大きいと感じたかで決定した。異音がない場合には0(異音無)とし、異音があるが、境界部B(接続部)に耳を近づけて聞こえる小さな音で、実際の使用上ほとんど聞こえないと判断できるものを1(異音有−小)とした。超音波振動の電流波形は歪まないが、はっきりした異音が聞こえ、実際の使用上でも聞こえる(気になる)と判断できるものを2(異音有−中)とした。超音波振動の電流波形が歪み、はっきりした異音が聞こえ、音が大きい(境界部B(接続部)でうなる音がする)と判断できるものを3(異音有−大)とした。周波数差分が−1.51から+1.63kHzの範囲(サンプル1〜3、7〜27)において、異音がないという評価結果となった。なお、サンプル22(周波数差分=1.41kHz)において2回目の測定で1(異音有−小)の評価結果となったが、異音が小さいことや、1回目と3回目で0(異音無)となったことから、当該1の評価結果をほとんど無視できる。サンプル4(周波数差分=−1.83kHz)において、2回目の測定で3(異音有−大)の評価結果となり、サンプル5(周波数差分=−1.87kHz)において、3回目の測定で2(異音有−中)の評価結果となった。このため、周波数差分が−1.83kHzよりも小さいときに、異音の発生確率が高くなり、異音の大きさも大きくなる傾向が確認できる。
図8を参照して、第2実施形態の処置具について説明する。第2実施形態の処置具11は、初期状態でのプローブ16の第2の共振周波数、および振動発生部26からプローブ16に伝達される超音波振動の腹位置43の場所が異なる点で、第1の実施形態のものと異なっているが、他の部分は第1実施形態と共通している。このため、主として第1実施形態と異なる部分について説明し、第1実施形態と共通する部分については図示或いは説明を省略する。本実施形態の処置具11は、他の鉗子やメス等と同時に使用され、手術中にピンポイントで使用される等、1回の手術において使用頻度が低い処置に好適な処置具である。
図9を参照して、第3実施形態の処置具について説明する。第3実施形態の処置具11は、初期状態でのプローブ16の第2の共振周波数、および振動発生部26からプローブ16に伝達される超音波振動の腹位置43の場所が異なる点で、第1の実施形態のものと異なっているが、他の部分は第1実施形態と共通している。このため、主として第1実施形態と異なる部分について説明し、第1実施形態と共通する部分については図示或いは説明を省略する。本実施形態の処置具11は、乳腺の処置等、長時間連続的に用いられる過酷な条件、すなわち1回の手術において頻繁に使用される処置に好適な処置具である。
以下図10から図18を参照して、第1実施形態の処置具11の各変形例(第1から第8変形例)について説明する。ここでは、主として第1実施形態と異なる部分について説明し、第1実施形態と共通する部分については図示或いは説明を省略する。
図10に示すように、プローブユニット21は、環状部材61を有し、環状部材61は、プローブ16のフランジ部67とケース35との間の位置に設けられる。環状部材61は、低摩擦性または潤滑性のある材料で構成され、より具体的には、例えばフッ素系樹脂(PTFE、PFA)で構成される。環状部材61は、プローブ16に伝わる超音波振動の節位置62に設けられる。節位置62では、超音波振動の振幅が最小となるが、この節位置62でも通常は微小な振動が発生してプローブ16とケース35との間で摩擦を生じる。
図10に示すように、プローブユニット21は、環状部材61を有し、環状部材61は、プローブ16のフランジ部67とケース35との間の位置に設けられる。第1変形例とは異なり、本変形例では、環状部材61は、ゴム状の弾性のある材料で構成され、より具体的には、例えばゴム材料(シリコンゴム、フッ素ゴム)で構成される。環状部材61は、プローブ16に伝わる超音波振動の節位置62に設けられる。節位置62では、超音波振動の振幅が最小となるが、この節位置62でも通常は微小な振動が発生する。
図11、図12に示すように、プローブユニット21は、一対の環状の低摩擦部材60を有する。一対の低摩擦部材60は、互いに同一の形状(平座金形状、長方形の断面を有するリング形状)をなしている。一対の低摩擦部材60は、ケース35の回転ノブを構成する第1部分35Aと、ケース35の本体部分を構成する第2部分35Bと、の間に設けられている。より詳細には、図12に示すように、低摩擦部材60は、第1部分35Aの基端方向C2側にあるフランジ状部分58と、第2部分35Bの内側に突出した受け部59と、の間に設けられている。低摩擦部材60は、フッ素系樹脂(PTFE、PFA)で構成される。一対の低摩擦部材60は、長手方向Cに互いに重ねられて設置される。なお、プローブ16は、フロントマス部32に所定の圧力で押し付けられてこれに接続された際に、その反作用で低摩擦部材60に対しても押し付けられる。本変形例では、2個の低摩擦部材60を重ね合わせて使用することで、回転ノブである第1部分35Aを持ってプローブ16を回転させる際に必要な回転力(第1部分35Aと第2部分35Bとの間で発生する摩擦力)が低減される。これによって、医師は、プローブ16を比較的小さな力で滑らかに回転できる。
図14に示すように、プローブユニット21は、プローブ16を保護する円筒形のシース63と、プローブ16とシース63との間に設けられる第1環状部材64と、プローブ16とケース35との間に介在される第2環状部材65と、フロントマス部32とケース35との間に介在される第3環状部材66と、を備える。第1から第3環状部材66のそれぞれは、低摩擦性または潤滑性のある材料で構成され、より具体的には、例えばフッ素系樹脂(PTFE、PFA)で構成される。第1環状部材64は、円筒形をなしており、シース63の中心位置にプローブ16を支持する。第1環状部材64は、プローブ16に伝わる超音波振動の節位置62に設けられる。第1環状部材64は、シース63の基端方向C2側の内部を密閉(シール)することができ、処置で発生した生体組織の破片や液体等がシース63の内部(或いはケース35の内部)に侵入することを防止する。
図15に示すように、把持部ユニット22は、外殻を構成する略円筒形のハウジング25と、ハウジング25内に収納される振動発生部26と、を有している。振動発生部26は、ハウジング25内に収納される超音波振動子31と、超音波振動子31に接続されたフロントマス部32と、を有する。フロントマス部32は、フランジ状部68を有する。把持部ユニット22は、このフランジ状部68とハウジング25との間に、円筒状の支持部材71を有する。
図16は、第4変形例の図15に示すF16を拡大して示している。図16に示すように、把持部ユニット22は、外殻を構成する略円筒形のハウジング25と、ハウジング25内に収納される振動発生部26と、を有している。振動発生部26は、ハウジング25内に収納される超音波振動子31と、超音波振動子31に接続されたフロントマス部32と、超音波振動子31をフロントマス部32に固定する固定部材72(バックマス)と、を有する。固定部材72は、雌ねじ部を有しており、フロントマス部32の基端面32Aに設けた雄ねじ部に対してねじ式で固定される。
図17に示すように、把持部ユニット22は、外殻を構成する略円筒形のハウジング25を有する。ハウジング25は、本体部分25Aと、本体部分25Aに対して折り曲げられた折り曲げ部25Bと、を有する。折り曲げ部25Bは、ケーブル14と接続する位置に設けられている。このため、ハウジング25は、本体部分25Aと折り曲げ部25Bとによって、術者の手に沿う形状をなしている。
図18は、第1変形例の図10に示すF18−F18線に沿った断面図を示している。プローブユニット21は、プローブ16と、プローブ16の周囲を覆うケース35と、プローブ16およびケース35と一体的に設けられた筒状部材36と、筒状部材36の周囲に設けられたばね部材37と、筒状部材36に対してスライド移動可能であってばね部材37によって先端方向C1側に付勢されたピンユニット41と、を備えている。ピンユニット41は、プローブ16の半径方向に突出した第1から第3ピン23A〜23Cを有する。第1から第3ピン23A〜23Cは、中心軸Cに関して、非対称に配置されている。第1ピン23Aと第2ピン23Bとがなす角度は、例えば、90°であり、第2ピン23Bと第3ピン23Cとがなす角度は、例えば、150°であり、第3ピン23Cと第1ピン23Aとがなす角度は、例えば、120°である。なお、これらの角度は一例であり、各ピンが中心軸Cに対して非対称形に配置されれば、他の角度でも当然によい。
Claims (6)
- 超音波振動可能な振動子と、
前記振動子と超音波振動を伝達可能に接続し、第1の共振周波数を有するフロントマス部と、
前記フロントマス部の第1の共振周波数よりも高い第2の共振周波数を有する、被検体を処置するための処置部プローブと、
前記フロントマス部の先端面と、前記処置部プローブの基端面と、を押圧して非ねじ接続するとともに、前記第1の共振周波数で振動したときの腹位置となる接続部と、
を備え、
前記第1の共振周波数<前記第2の共振周波数<前記第1の共振周波数+1.5kHzの関係を有する処置具。 - 初期状態において、前記超音波振動の腹位置は、前記接続部から前記フロントマス部側に1mm以下の距離分を移動した位置にある請求項1に記載の処置具。
- 前記処置部プローブに高周波エネルギーを供給できる高周波エネルギー供給部を備え、
前記処置部プローブには、前記超音波振動と前記高周波エネルギーとを同時に伝達可能である請求項1に記載の処置具。 - 前記処置部プローブと前記フロントマス部は長手軸に沿って接続され、少なくとも前記処置部プローブの基端面若しくはフロントマス部の先端面は、前記長手軸に直交する平面である請求項1に記載の処置具。
- 前記処置部プローブが設けられるプローブユニットと、
前記振動子が設けられる把持部ユニットと、
前記プローブユニットに設けられたピンと、
前記把持部ユニットに設けられ、前記ピンを受ける受け部と、
を備えた請求項1に記載の処置具。 - 前記処置部プローブと前記フロントマス部は、カムを用いて突き当てて固定される請求項1に記載の処置具。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015238791 | 2015-12-07 | ||
| JP2015238791 | 2015-12-07 | ||
| PCT/JP2016/086432 WO2017099142A1 (ja) | 2015-12-07 | 2016-12-07 | 処置具 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPWO2017099142A1 JPWO2017099142A1 (ja) | 2017-12-07 |
| JP6318312B2 true JP6318312B2 (ja) | 2018-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2017547027A Active JP6318312B2 (ja) | 2015-12-07 | 2016-12-07 | 処置具 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US10966777B2 (ja) |
| EP (1) | EP3388004B1 (ja) |
| JP (1) | JP6318312B2 (ja) |
| CN (1) | CN108366810B (ja) |
| WO (1) | WO2017099142A1 (ja) |
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| US20070084897A1 (en) | 2003-05-20 | 2007-04-19 | Shelton Frederick E Iv | Articulating surgical stapling instrument incorporating a two-piece e-beam firing mechanism |
| US9072535B2 (en) | 2011-05-27 | 2015-07-07 | Ethicon Endo-Surgery, Inc. | Surgical stapling instruments with rotatable staple deployment arrangements |
| US11890012B2 (en) | 2004-07-28 | 2024-02-06 | Cilag Gmbh International | Staple cartridge comprising cartridge body and attached support |
| US11998198B2 (en) | 2004-07-28 | 2024-06-04 | Cilag Gmbh International | Surgical stapling instrument incorporating a two-piece E-beam firing mechanism |
| US10159482B2 (en) | 2005-08-31 | 2018-12-25 | Ethicon Llc | Fastener cartridge assembly comprising a fixed anvil and different staple heights |
| US11246590B2 (en) | 2005-08-31 | 2022-02-15 | Cilag Gmbh International | Staple cartridge including staple drivers having different unfired heights |
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| JPH02203972A (ja) * | 1989-01-31 | 1990-08-13 | Taga Electric Co Ltd | 超音波振動装置 |
| JPH02123216U (ja) * | 1989-03-20 | 1990-10-09 | ||
| JPH0549649A (ja) | 1991-08-28 | 1993-03-02 | Olympus Optical Co Ltd | 超音波治療装置 |
| US20080294051A1 (en) * | 2007-05-25 | 2008-11-27 | Machiko Koshigoe | Ultrasonic operating apparatus |
| US9044261B2 (en) * | 2007-07-31 | 2015-06-02 | Ethicon Endo-Surgery, Inc. | Temperature controlled ultrasonic surgical instruments |
| US8097011B2 (en) * | 2008-02-26 | 2012-01-17 | Olympus Medical Systems Corp. | Surgical treatment apparatus |
| WO2014045687A1 (ja) * | 2012-09-24 | 2014-03-27 | オリンパスメディカルシステムズ株式会社 | 処置アッセンブリ及びその製造方法並びに処置具 |
| WO2015072326A1 (ja) * | 2013-11-15 | 2015-05-21 | オリンパスメディカルシステムズ株式会社 | 振動発生ユニット、振動体ユニット及び超音波処置装置 |
| JP5911650B2 (ja) * | 2014-02-17 | 2016-04-27 | オリンパス株式会社 | 把持処置装置 |
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- 2016-12-07 JP JP2017547027A patent/JP6318312B2/ja active Active
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| US20180280073A1 (en) | 2018-10-04 |
| JPWO2017099142A1 (ja) | 2017-12-07 |
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| CN108366810A (zh) | 2018-08-03 |
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| EP3388004A4 (en) | 2019-06-26 |
| EP3388004B1 (en) | 2022-02-02 |
| US10966777B2 (en) | 2021-04-06 |
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