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JP4422243B2 - Ultrasonic treatment device - Google Patents

Ultrasonic treatment device Download PDF

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Publication number
JP4422243B2
JP4422243B2 JP24758999A JP24758999A JP4422243B2 JP 4422243 B2 JP4422243 B2 JP 4422243B2 JP 24758999 A JP24758999 A JP 24758999A JP 24758999 A JP24758999 A JP 24758999A JP 4422243 B2 JP4422243 B2 JP 4422243B2
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Prior art keywords
ultrasonic
treatment
housing
transmission member
end side
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JP24758999A
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JP2001070313A (en
Inventor
健一 木村
友尚 櫻井
義清 柴田
光正 岡田
高宏 小賀坂
洋 岡部
昌章 植田
明 志賀
剛明 中村
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Olympus Corp
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Olympus Corp
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32Surgical cutting instruments
    • A61B17/320068Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
    • A61B17/320092Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic with additional movable means for clamping or cutting tissue, e.g. with a pivoting jaw
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32Surgical cutting instruments
    • A61B17/320068Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
    • A61B2017/320072Working tips with special features, e.g. extending parts
    • A61B2017/320074Working tips with special features, e.g. extending parts blade
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32Surgical cutting instruments
    • A61B17/320068Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
    • A61B2017/320084Irrigation sleeves
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32Surgical cutting instruments
    • A61B17/320068Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
    • A61B17/320092Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic with additional movable means for clamping or cutting tissue, e.g. with a pivoting jaw
    • A61B2017/320094Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic with additional movable means for clamping or cutting tissue, e.g. with a pivoting jaw additional movable means performing clamping operation

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  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Mechanical Engineering (AREA)
  • Biomedical Technology (AREA)
  • Dentistry (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)

Description

【0001】
【発明の属する技術分野】
本発明は、超音波振動により処置対象部位を処置する超音波処置具に関する。
【0002】
【従来の技術】
従来より超音波振動の応用技術として例えば超音波メス装置や超音波トラカール装置などの超音波を利用した各種の超音波処置具が広く用いられている。
【0003】
このような超音波処置具には、例えば特開昭61−159952号公報に記載されているように、超音波振動により生物組織の処置対象部位、特に骨の切除、骨膜の分離等の処置を行う外科手術具がある。
前記超音波処置具は、超音波振動子に接続された超音波振動を伝達する伝達部材の先端側に処置部を有し、この処置部を処置対象部位に押し当てて、切除等の処置を行うようになっている。また、この伝達部材の内部を通る液体流路を有して、処置した処置対象部位例えば骨の切除片等の回収を行うものが提案されている。
【0004】
【発明が解決しようとする課題】
しかしながら、上記特開昭61−159952号公報に記載の超音波処置具は、伝達部材の処置部が処置対象部位に接触する力量は操作者の操作力量(手術用具を処置対象部位に押し当てる力量)によって直接影響を受ける。特に骨等の硬い処置対象部位を処置する際、過度の操作力量を加えると伝達部材に応力が生じてインピーダンスが上昇し、超音波振動子による超音波振動の発生が困難になる等の問題があった。また、超音波振動を発生させることができても、処置部の処置対象部位に対する接触力量が所定の値を超えて過度の接触力量で処置対象部位を押圧することがあった。
そこで、本発明は前記事情に鑑みてなされたもので、伝達部材のインピーダンスが過度に上昇することをなくすことで超音波振動を安定して発生させると共に、過度の接触力量で処置対象部位を押圧することを防止するようにした超音波処置具を提供することを目的とする。
【0005】
【課題を解決するための手段】
前記目的を達成するため本発明による超音波処置具は、超音波振動子を有する振動子ユニットと、この振動子ユニットの先端側に連結し、前記超音波振動子からの超音波振動を先端側に設けた処置部に伝達する伝達部材と、この伝達部材及び前記振動子ユニットを覆うハウジングと、このハウジングに対して前記振動子ユニットを付勢し、前記伝達部材の先端側に設けた処置部を前記ハウジング外部に突出させる付勢手段と、を具備し、前記処置部は、前記付勢手段により前記ハウジング内に没入可能に付勢されていることを特徴としている。
また、本発明による超音波処置具は、超音波振動子を有する振動子ユニットと、この振動子ユニットの先端側に連結し、前記超音波振動子からの超音波振動を先端側に設けた処置部に伝達する伝達部材と、この伝達部材及び前記振動子ユニットを覆うハウジングと、このハウジング内に前記振動子ユニット及び前記伝達部材を回動自在に連結する支持部材と、前記ハウジングに対して前記振動子ユニットを、前記支持部材を中心に回動する方向に付勢し、前記伝達部材の先端側に設けた処置部を、前記振動子ユニットが回動する方向とは逆方向に回動させて前記ハウジング外部に突出させる付勢手段と、を具備し、前記処置部は、前記付勢手段により前記ハウジング内に没入可能に付勢されていることを特徴としている。
【0006】
【発明の実施の形態】
以下、図面を参照して本発明の実施の形態を説明する。
(第1の実施の形態)
図1ないし図4は本発明の第1の実施の形態に係り、図1は本発明の第1の実施の形態を備えた超音波処置具を示す説明図、図2は図1のA−A断面図、図3は各処置に適した種々の形状に加工されている処置部を示した説明図であり、図3(a)はエッジを有するナイフ形状の処置部を示した外観斜視図、図3(b)は湾曲部を有するフック形状の処置部を示した外観斜視図、図3(c)はキュレット形状の処置部を示した外観斜視図、図4は処置部に加える操作力量が所定の力量になり、処置部がハウジング内に没入されている状態を示す説明図である。
【0007】
図1に示すように本発明の第1の実施の形態を備えた超音波処置具1は、超音波振動子2aを有した振動子ユニット2と、この振動子ユニット2の先端側に連結し、前記超音波振動子2aからの超音波振動を先端側に設けた処置部3aに伝達する伝達部材3と、この伝達部材3及び前記振動子ユニット2を覆う形状の把持部を兼ねるハウジング4とから主に構成されている。尚、本実施の形態の超音波処置具1は、処置対象部位例えば、骨等に押し当てて切除等の超音波処置を施すものである。
【0008】
前記振動子ユニット2は、例えばボルト締めラジュバン型振動子で構成された超音波振動子2aと、この超音波振動子2aに結合されて、この超音波振動子2aで発生した超音波振動を増幅させるホーン5と、前記超音波振動子2aを覆う円筒状のカバー部材6とから構成されている。前記カバー部材6には、前記超音波振動子2aと図示しない超音波発振装置とを電気的に接続するコード7が延出している。
【0009】
前記伝達部材3は、前記ホーン5の先端側に例えばねじ等により取り付けられて前記ホーン5からの超音波振動を伝達する超音波プローブ8と、この超音波プローブ8の先端側に設けられ、超音波振動により処置を行うための前記処置部3aとから構成されている。
尚、前記処置部3aは、図3(a)に示すようにエッジ11aを有するナイフ形状11をしているが、図3(b)に示すような湾曲部12aを有するフック形状12のものや図3(c)に示すようなキュレット形状13等の各処置に適した種々の形状に加工されている。
【0010】
前記ハウジング4の先端側には、前記処置部3aが突出する先端開口部4aが形成され、後端側には前記コード7が挿通される後端開口部4bが形成されている。また、ハウジング4の後端側内周には、前記カバー部材6の外周面と突き当たる内周側に突き出した突当部20が形成されている。
【0011】
前記超音波プローブ8は、超音波振動の節に当たる部分の位置に支持部材21を取り付けている。この支持部材21は、図2に示すように前記超音波プローブ8に形成した凸部22と係合することにより、前記超音波プローブ8に対して一体的に取り付けられている。前記支持部材21は、雌ネジ部21aを形成していて、2つの支点部材23の先端に形成した雄ネジ部23aに螺合することで、前記ハウジング4を前記振動子ユニット2及び伝達部材3に対して回動自在に取り付けている。即ち、振動子ユニット2及び伝達部材3は、ハウジング4に対して支持部材21を中心に回動自在となっている。
【0012】
本実施の形態では、前記ハウジング4に対して前記振動子ユニット2を付勢し、前記超音波プローブ8の先端側に設けられた処置部3aを前記ハウジング4外部に突出する付勢手段を設けて構成している。
【0013】
前記ハウジング4の後端側内周には、付勢手段としてのコイルばね25を調整部材としての調整ねじ26により取り付けている。
前記コイルばね25は、前記ハウジング4に対して前記振動子ユニット2及び伝達部材3を前記支持部材21を中心に図1上で反時計回り方向に付勢する位置に設けられている。尚、前記処置部3aに操作力量が加えられない状態のときには、前記カバー部材6の外周面と前記ハウジング4の突当部20とは突き当たり、前記処置部3aは前記ハウジングの先端開口部4aから突出している状態となっている。
【0014】
前記調整ねじ26には、雄ねじ部26aが形成され、この雄ねじ部26aを前記ハウジング4に形成された雌ねじ部4cにねじ込むことで、前記ハウジング4に対する調整ねじ26のねじ込み量を調整することが可能である。これにより、前記コイルばね25の装備力量を調整できるようになっている。
【0015】
このように構成された超音波処置具1を用いてハウジング4の外周面を保持し、例えば骨等の処置対象部位に押し当て、超音波処置を施す。
図示しない超音波発振装置からコード7を介して超音波振動子2aに電流が供給されると、超音波振動子2aは超音波振動を発生する。この超音波振動子2aにより発生した超音波振動がホーン5により増幅され、超音波プローブ8により処置部3aに伝達される。この処置部3aに伝達された超音波振動により例えば骨等の処置対象部位27(図4参照)の切除等の処置が行われる。
【0016】
このとき、操作者の操作力量即ち処置部3aの処置対象部位27に対する接触力量がコイルばね25の装備力量を超えると、コイルばね25が変形して縮むと共に、振動子ユニット2及び伝達部材3がハウジング4に対して支持部材21を中心に図1上で時計方向に回動し、処置部3aは徐々にハウジング4内に没入していく。
【0017】
更に、操作力量を加えると、伝達部材3のインピーダンスが過度に上昇する(超音波振動子2aにて超音波振動が発生できなくなるまで上昇する)前に、図4に示すように処置部3aはハウジング4内に没入する。よって、処置部3aの処置対象部位27に対する接触力量及び伝達部材3に加わる応力は、所定の値を超えることはない。尚、調整ねじ26のねじ込み量を調整することにより、処置対象部位27に応じた、あるいは伝達部材3の特性に応じたコイルばね25の装備力量を選択することが可能である。
【0018】
この結果、伝達部材3のインピーダンスが過度に上昇することがないため、超音波振動子2aによる超音波振動の発生が安定する。また、処置部3aの処置対象部位に対する接触力量が所定の値を超えることが無い。
【0019】
(第2の実施の形態)
図5ないし図6は本発明の第2の実施の形態に係り、図5は本発明の第2の実施の形態を備えた超音波処置具を示す説明図、図6は図5の処置部の拡大図である。
本実施の形態では、第1の実施の形態で説明した超音波処置具1の超音波振動子2aとホーン5及び超音波プローブ8を貫通し、処置部3aの先端側にて開口するチャンネルを形成すると共に、ハウジング4内にスイッチを設けて超音波処置具を構成している。それ以外の構成は図1とほぼ同様なので同じ構成には、同じ符号を付して説明を省略する。
【0020】
図5に示すように本実施の形態を備えた超音波処置具30の振動子ユニット2後端側には、図示しない送水吸引装置に接続されるチューブ(不図示)が接続される口金31を設け、この口金31と超音波振動子2aとホーン5及び超音波プローブ8を貫通するチャンネル32を形成している。このチャンネル32は、図6に示すように処置部3aの先端側にて開口している。
【0021】
前記ハウジング4の後端側内周には、例えば接触部33aを有するスイッチ33をハウジング4に一体的に取り付けていて、コード33bを介して図示しない超音波発振装置に電気的に接続されている。
このスイッチ33は、前記振動子ユニット2のカバー部材6の外周面とスイッチ33の接触部33aとが接触することでオンし、例えば前記コード33bを介して超音波発振装置に電気信号を送信し、超音波振動子2aへの電力供給を停止するように構成している。尚、このとき、超音波発振装置が警告音を発したり、LEDを点灯させることにより操作者へ告知するような構成にしても良い。
【0022】
このように構成された超音波処置具30を用いてハウジング4の外周面を保持し、処置対象部位(例えば骨等)に押し当て、第1の実施の形態の超音波処置具1と同様に超音波処置を施す。
処置部3aを処置対象部位に押し当て処置を行う際、処置部3aの処置対象部位に対する接触力量によりコイルばね25が変形して縮み、ハウジング4に対して振動子ユニット2及び伝達部材3が支持部材21を中心に図5上で時計方向に回動する。
【0023】
このとき、チャンネル32を介して図示しない送水吸引装置で吸引することにより、処置した処置対象部位(例えば骨の切除片等)の回収を行うことができる。また、チャンネル32を介して送気したり、あるいは例えば生理食塩水等を送水することにより、処置した処置対象部位の除去、あるいは処置対象部位の洗滌を行うこともできる。更に、超音波プローブ8の冷却も同時に行うことができる。
【0024】
更に、処置部3aの処置対象部位に対する接触力量が所定の値を超えると、前記したように振動子ユニット2のカバー部材6の外周面とスイッチ33の接触部33aとが接触することでスイッチ33がオンして、図示しない超音波発振装置からの超音波振動子2aへの電力供給を停止する。これにより、過度の接触力量による超音波処置を防止できる。
【0025】
この結果、第1の実施の形態の超音波処置具1に比べて、更に超音波振動を安定に発生させると共に、過度の接触力量で処置対象部位を押圧することを防止することができる。また、チャンネル32を介して送気、送水、吸引等を行うことにより、良好な視野での処置が可能となる。
【0026】
(第3の実施の形態)
図7は本発明の第3の実施の形態に係る超音波処置具を示す説明図である。
第1、第2の実施の形態では、伝達部材3の長手軸方向に対して略垂直方向に処置部3aを処置対象部位例えば、骨等に押し当てて切除等の超音波処置を施す超音波処置具1に、ハウジング4に対して振動子ユニット2及び伝達部材3を支持部材21を中心に反時計回り方向に付勢するような付勢手段としてコイルばね25を設けた構成としているが、本実施の形態では伝達部材3の長手軸方向に対して略平行方向に処置部3aを処置対象部位に押し当てて超音波処置を施す超音波処置具に適用する。尚、同一構成には、同じ符号を付して説明を省略する。
【0027】
図7に示すように本実施の形態の超音波処置具40は、振動子ユニット2を覆うカバー部材6の先端側にフランジ41を形成すると共に、伝達部材3はパイプ状の超音波プローブ42で構成している。
前記振動子ユニット2及び超音波プローブ42を覆うハウジング43の後端側内周には、押え部材44がハウジング43に対して一体的に設けられている。
【0028】
この押え部材44には、前記カバー部材6の外周面を軸方向に摺動可能に支持する小径部45が形成されている。
前記カバー部材6の外周側には、付勢手段としてのコイルばね46が設けられ、このコイルばね46は前記フランジ41の後端面及び前記押え部材44の先端面に接触している。前記処置部3aに接触力量が加えられない状態のときには、フランジ41の先端面が前記ハウジング43の突当面47に突き当たり、処置部3aはハウジング43の先端開口部43aから突出している状態となっている。
【0029】
このように構成された超音波処置具40を用いてハウジング43の外周面を保持し、処置対象部位(例えば骨等)に押し当て、超音波処置を施す。
そして、処置部3aの先端面を処置対象部位に押し当てた状態で超音波振動を発生させると、キャビテーション現象により処置対象部位が破砕、乳化される。その破砕、乳化された処置対象部位をチャンネル32を介して吸引(回収)する。
【0030】
このとき、処置部3aを処置対象部位に押し当てる力量(軸方向の力量)が所定の値を超えると、コイルばね46が縮み振動子ユニット2及び伝達部材3がハウジング43に対して図7上で右方向に移動して、処置部3aがハウジング43内に没入される。
この結果、第2の実施の形態の超音波処置具と同様な効果を得ることが可能となる。
【0031】
尚、本発明は、上記した実施の形態にのみ限定されるものではなく、本発明の要旨を逸脱しない範囲で種々変形実施可能である。
【0032】
ところで、従来、自動縫合器や自動吻合器等に超音波を組み合わせ、処置対象部位の縫合または吻合を行なう超音波処置具は、処置部の構造が大きいため、血管の吻合や膜の縫合閉鎖等細かい部位の処置が困難であった。
そこで、血管の吻合や膜の縫合閉鎖等細かい部位の処置が可能な超音波処置具を実現することを目的とする。
【0033】
図8に示すように超音波処置具61は、超音波振動子62aを有する処置具本体62と、前記超音波振動子62aからの超音波振動を先端側に設けた処置部63aに伝達する伝達部材63と、この伝達部材63の先端側に設けた処置部63aとの間で処置対象部位を把持する把持部であるジョウ(Jaw)64と、前記処置具本体62の先端側に連設し、前記伝達部材63を覆う形状のカバー部材65とから主に構成されている。
【0034】
前記処置具本体62は、例えばボルト締めラジュバン型振動子で構成された超音波振動子62aと、この超音波振動子62aに結合されて、この超音波振動子62aで発生した超音波振動を増幅させるホーン66とから構成されている。前記カバー部材65には、前記超音波振動子62aと図示しない超音波発振装置とを電気的に接続するコード67が延出している。
【0035】
前記伝達部材63は、前記ホーン66の先端側に例えばねじ等により取り付けられた超音波振動を伝達する超音波プローブ68と、この超音波プローブ68の先端側で、超音波振動により処置を行うための前記処置部63aとから構成されている。
【0036】
前記ジョウ64は、例えば前記カバー部材65の先端側に軸着されていて、このジョウ64には例えば付勢ばね69の下端が固定されると共に、この付勢ばね69の上端は前記カバー部材65の先端側内部に固定されている。
この付勢ばね69の付勢力に抗して前記ジョウ64をこの処置部63aに対して閉方向に回動させて、前記ジョウ64の先端側と前記超音波プローブ68の処置部63aとで処置対象部位を把持できるようになっている。尚、前記ジョウ64は、前記カバー部材65の先端側に軸着せずに図11に示すように、例えば親指70aに嵌められる溝部70を形成して構成しても良い。
【0037】
本実施例では、前記超音波プローブ68先端側に設けられた処置部63aに血管の吻合や膜の縫合閉鎖等細かい部位の処置が可能な組織把持部材としての突起部材として針71を設けると共に、前記ジョウ64に前記針71が貫通する貫通部72を形成している。
【0038】
前記針71は、例えば図9(a)に示すように前記超音波プローブ68先端側の処置部63aから前記ジョウ64に向かって湾曲している形状である。
尚、前記針71は、図9(b)に示すように前記カバー部材65の先端側開口部に設けても良い。
【0039】
このように構成した超音波処置具61を用いてカバー部材65の外周面を手73で保持し、図10に示すように例えば血管や膜等の処置対象部位74a、74bを針71で突き刺して処置部63aとジョウ64との間で把持し、超音波処置を施す。これにより、血管の吻合や膜の縫合閉鎖等細かい部位の処置が可能となり、縫合、吻合したい処置対象部位のマニピュレーションが容易となる。
【0040】
ところで、従来、ソケイヘルニアを内視鏡的に手術する場合、複雑な針糸による縫合操作や、高価なヘルニアステープラ等の縫合器を使用していた。
そこで、腹膜等の処置対象部位の縫合を針や高価なステープラ等を使用することなく、確実かつ容易に行なうことが可能な超音波処置具を実現することを目的とする。
【0041】
図12に示すように超音波処置具81は、超音波振動子(不図示)を有したハンドピース82と、前記超音波振動子からの超音波振動を先端側に伝達する伝達部材83と、この伝達部材83を覆う保護部材である細長い筒状のシース84とから主に構成されている。
【0042】
前記ハンドピース82後端部には、前記超音波振動子と図示しない超音波発振装置とを電気的に接続するコード85が延出している。
前記ハンドピース82は、一体的に形成されている固定ハンドル86と、この固定ハンドル86に対して接離可能な可動操作ハンドル87とを設けている。
前記伝達部材83は、超音波振動子からの超音波振動を伝達する超音波プローブ88と、この超音波プローブ88の先端側に軸着された組織把持部材89とから構成されている。
【0043】
前記超音波プローブ88の後端は、前記ハンドピース82に挿通されて、前記可動操作ハンドル87に接続されている。このため、可動操作ハンドル87を固定ハンドル86に対して操作することによって、前記超音波プローブ88は前記可動操作ハンドル87からの把持あるいは、開放の動作指示を前記組織把持部材89に伝達するようになっている。
【0044】
これにより、図13(a)に示すように前記組織把持部材89で腹膜等の処置対象部位90a、90bを突き刺して、更にこの状態から超音波プローブ88側に向けて閉じる方向に回動させることで、前記超音波プローブ88側に手繰り寄せ、図13(b)に示すように、前記超音波プローブ88との間で処置対象部位90a、90bを把持して超音波接合することが可能である。
【0045】
また、例えば図14に示す超音波処置具91のように、超音波プローブ92の先端側を屈曲させた屈曲プローブ92aと、この屈曲プローブ92aとの間で処置対象部位を把持する組織把持部材93を前記可動操作ハンドル87に接続されている駆動軸94の先端側に回動自在に軸着して構成してもよい。図中では、前記組織把持部材93で例えばヘルニアサック切除後の腹膜開口部95の一端を突き刺して左側の他端に手繰り寄せて超音波処置を施す様子を示している。
尚、前記駆動軸94に前記超音波振動子からの超音波振動を伝達して、前記組織把持部材93で超音波処置を可能なように構成しても良い。
【0046】
図15(a)に示すように前記駆動軸94先端側に回動自在に軸着した前記組織把持部材93は、前記可動操作ハンドル87を固定ハンドル86側に閉操作することによって、屈曲プローブ92a側に向けて閉じる方向に回動すると共に、手元側に平行移動するようになっている。そして、図15(b)に示すように、前記組織把持部材93で腹膜等の処置対象部位90a、90bを前記屈曲プローブ92a側に向けて手繰り寄せ、前記屈曲プローブ92aとの間で処置対象部位90a、90bを把持して超音波接合することが可能となっている。尚、前記屈曲プローブ92aは、図16(a)に示すように処置対象部位が逃げないように処置対象部位を係止する突起部96を設けて構成しても良い。
【0047】
また、図16(b)に示すように、R形状に形成した組織把持部材93を前記駆動軸94に取り付けると共に、同様に屈曲プローブ92aもR形状に形成して、処置対象部位を把持するようにしても良い。この場合、前記組織把持部材93で処置対象部位を引っかけて、手元側に平行移動させるだけで前記屈曲プローブ92aとの間で処置対象部位を把持することができるようになっている。
【0048】
これにより、腹膜等の処置対象部位の縫合を針や高価なステープラ等を使用することなく、確実かつ容易に行なうことができる。
【0049】
尚、本発明は、上記した実施例にのみ限定されるものではなく、本発明の要旨を逸脱しない範囲で種々変形実施可能である。
【0050】
[付記]
(付記項1) 超音波振動子を有する振動子ユニットと、
この振動子ユニットの先端側に連結し、前記超音波振動子からの超音波振動を先端側に設けた処置部に伝達する伝達部材と、
この伝達部材及び前記振動子ユニットを覆うハウジングと、
このハウジングに対して前記振動子ユニットを付勢し、前記伝達部材の先端側に設けた処置部を前記ハウジング外部に突出させる付勢手段と、
を具備したことを特徴とする超音波処置具。
【0051】
(付記項2) 前記ハウジング内に前記伝達部材を回動自在に連結する支点部材を設けたことを特徴とする付記項1に記載の超音波処置具。
【0052】
(付記項3) 前記付勢手段は、コイルばねであることを特徴とする付記項1または2に記載の超音波処置具。
【0053】
(付記項4) 前記付勢手段に前記付勢手段の装備力量を任意に調整する調整部材を設けたことを特徴とする付記項1〜3に記載の超音波処置具。
【0054】
(付記項5) 前記超音波振動子及び前記伝達部材を貫通し前記処置部に開口部を有するチャンネルを設けたことを特徴とする付記項1〜4に記載の超音波処置具。
【0055】
(付記項6) 超音波振動子を有する処置具本体と、
前記超音波振動子からの超音波振動を先端側に設けた処置部に伝達する伝達部材と、
この伝達部材の先端側に設けた処置部との間で処置対象部位を把持する把持部と、
前記処置部付近に設けた組織把持部材と、
を具備したことを特徴とする超音波処置具。
【0056】
(付記項7) 前記組織把持部材は、生体組織を吸着する吸着部材であることを特徴とする付記項6に記載の超音波処置具。
【0057】
(付記項8) 前記組織把持部材は、生体組織を突き刺す突起部材であることを特徴とする付記項6に記載の超音波処置具。
【0058】
(付記項9) 前記突起部材は、湾曲していることを特徴とする付記項8に記載の超音波処置具。
【0059】
(付記項10) 前記突起部材は、前記処置部の先端側に設けたことを特徴とする付記項8に記載の超音波処置具。
【0060】
(付記項11) 前記突起部材は、前記伝達部材を覆うカバー部材の先端側に設けたことを特徴とする付記項8に記載の超音波処置具。
【0061】
(付記項12) 超音波振動子を有するハンドピースと、
前記超音波振動子からの超音波振動を先端側に伝達する伝達部材と、
この伝達部材の先端側に設けられ、処置対象部位を突き刺して回転させることにより前記伝達部材側に手繰り寄せる組織把持部材と、
を具備したことを特徴とする超音波処置具。
【0062】
(付記項13) 超音波振動子を有するハンドピースと、
前記超音波振動子からの超音波振動を先端側に設けた処置部に伝達する伝達部材と、
この伝達部材の先端側に設けた処置部との間で処置対象部位を把持する把持部と、
この把持部の先端側に設けられ、処置対象部位を突き刺して回転させることにより前記伝達部材の先端側に設けた処置部側に手繰り寄せる組織把持部材と、
を具備したことを特徴とする超音波処置具。
【0063】
(付記項14) 前記組織把持部材は、手元側に平行移動可能であることを特徴とする付記項13に記載の超音波処置具。
【0064】
(付記項15) 前記処置部は、先端側で屈曲していることを特徴とする付記項13に記載の超音波処置具。
【0065】
(付記項16) 前記処置部には、処置対象部位を係止する突起部を設けたことを特徴とする付記項13または15に記載の超音波処置具。
【0066】
[付記の目的]
(付記項1〜5)
超音波振動を安定して発生させると共に、過度の接触力量で処置対象部位を押圧することを防止するようにした超音波処置具を提供することを目的とする。
【0067】
(付記項6〜11)
血管の吻合や膜の縫合閉鎖等細かい部位の処置が可能な超音波処置具を提供することを目的とする。
【0068】
(付記項12〜16)
腹膜等の処置対象部位の縫合を針や高価なステープラ等を使用することなく、確実かつ容易に行なうことが可能な超音波処置具を提供することを目的とする。
【0069】
[付記の効果]
(付記項1〜5)
超音波振動を安定して発生させると共に、過度の接触力量で処置対象部位を押圧することを防止することができる。
【0070】
(付記項6〜11)
血管の吻合や膜の縫合閉鎖等細かい部位の処置ができる。
【0071】
(付記項12〜16)
腹膜等の処置対象部位の縫合を確実かつ容易に行なうことができる。
【0072】
【発明の効果】
以上説明したように本発明によれば、伝達部材のインピーダンスが過度に上昇することをなくすことで超音波振動を安定して発生させると共に、過度の接触力量で処置対象部位を押圧することを防止することができる。
【図面の簡単な説明】
【図1】本発明の第1の実施の形態を備えた超音波処置具を示す説明図。
【図2】図1のA−A断面図。
【図3】各処置に適した種々の形状に加工されている処置部を示した説明図であり、図3(a)はエッジを有するナイフ形状の処置部を示した外観斜視図、図3(b)は湾曲部を有するフック形状の処置部を示した外観斜視図、図3(c)はキュレット形状の処置部を示した外観斜視図。
【図4】図1の処置部に加える操作力量が所定の力量になり、処置部がハウジング内に没入されている状態を示す説明図。
【図5】本発明の第2の実施の形態を備えた超音波処置具を示す説明図。
【図6】図5の処置部の拡大図。
【図7】本発明の第3の実施の形態に係る超音波処置具を示す説明図。
【図8】超音波縫合を行なう超音波処置具を示す説明図。
【図9】図8のA矢視図であり、図9(a)は湾曲形状の針を超音波プローブに取り付けた際の説明図、図9(b)は湾曲形状の針をカバー部材に取り付けた際の説明図。
【図10】処置対象部位を針で突き刺して処置部とジョウとの間で把持している際の説明図。
【図11】図8の変形例を示す説明図。
【図12】超音波接合を行なう超音波処置具を示す説明図。
【図13】図12の組織把持部材で処置対象部位を把持している際の説明図であり、図13(a)は組織把持部材で処置対象部位を突き刺している際の説明図、図13(b)は同図(a)の状態から組織把持部材を閉操作して超音波プローブとの間で把持している際の説明図。
【図14】図12の変形例を示す説明図。
【図15】図14の処置部の動作を示す拡大図であり、図15(a)は組織把持部材が屈曲プローブ側に向けて閉じる方向に回動すると共に、手元側に平行移動している際の動作説明図、図15(b)は同図(a)の動作で処置対象部位を把持して超音波処置を行なっている際の説明図。
【図16】図15の処置部の変形例を示す説明図であり、図16(a)は処置対象部位を係止する突起部を設けた屈曲プローブを示す説明図、図16(b)はR形状に形成した組織把持部材及び屈曲プローブを示す説明図。
【符号の説明】
1,30,40,
61,81,91…超音波処置具
2,62 …振動子ユニット
2a,62a …超音波振動子
3,63,83 …伝達部材
3a,63a …処置部
4,43 …ハウジング
6,65 …カバー部材
8,42,68,
88,92 …超音波プローブ
20 …突当部
21 …支持部材
25,46 …コイルばね(付勢手段)
26 …調整ねじ(調整部材)
31 …口金
32 …チャンネル
33 …スイッチ
62 …処置具本体
64 …ジョウ(把持部)
69 …付勢ばね
71 …針(突起部材)
72 …貫通部
82 …ハンドピース
89,93 …組織把持部材
92a …屈曲プローブ
96 …突起部
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an ultrasonic treatment tool for treating a treatment target site by ultrasonic vibration.
[0002]
[Prior art]
Conventionally, various ultrasonic treatment tools using ultrasonic waves, such as an ultrasonic scalpel device and an ultrasonic trocar device, have been widely used as an application technique of ultrasonic vibration.
[0003]
For such an ultrasonic treatment device, for example, as described in Japanese Patent Application Laid-Open No. 61-159952, a treatment target site of a biological tissue, in particular, excision of bone, separation of periosteum and the like is performed by ultrasonic vibration. There are surgical tools to perform.
The ultrasonic treatment instrument has a treatment portion on the distal end side of a transmission member that transmits ultrasonic vibration connected to an ultrasonic transducer, and presses the treatment portion against a treatment target site to perform treatment such as excision. To do. Further, there has been proposed a liquid flow path that passes through the inside of the transmission member and collects a treatment target site such as a bone excision.
[0004]
[Problems to be solved by the invention]
  However, in the ultrasonic treatment instrument described in Japanese Patent Laid-Open No. 61-159952, the force with which the treatment portion of the transmission member comes into contact with the treatment target site is the amount of operation force of the operator (the amount of force with which the surgical tool is pressed against the treatment site. ) Directly affected. In particular, when treating a hard treatment target site such as a bone, if an excessive amount of operating force is applied, stress is generated in the transmission member, the impedance rises, and it is difficult to generate ultrasonic vibration by the ultrasonic vibrator. there were. Even if ultrasonic vibration can be generated, the amount of contact force with respect to the treatment target region of the treatment unit may exceed a predetermined value and the treatment target region may be pressed with an excessive amount of contact force.
  Therefore, the present invention has been made in view of the above circumstances, and it is possible to stably generate ultrasonic vibration by eliminating an excessive increase in the impedance of the transmission member and to press the treatment target site with an excessive amount of contact force. It is an object of the present invention to provide an ultrasonic treatment device that prevents this from happening.
[0005]
[Means for Solving the Problems]
  To achieve the above object, an ultrasonic treatment instrument according to the present invention is connected to a transducer unit having an ultrasonic transducer and a distal end side of the transducer unit, and transmits ultrasonic vibration from the ultrasonic transducer to the distal end side. A transmission member that transmits to the treatment portion provided in the housing, a housing that covers the transmission member and the vibrator unit, and a treatment portion that urges the vibrator unit against the housing and is provided on the distal end side of the transmission member. And an urging means for projecting out of the housing, wherein the treatment portion is urged by the urging means so as to be retractable into the housing.
  Further, an ultrasonic treatment tool according to the present invention includes a vibrator unit having an ultrasonic vibrator, a treatment connected to the distal end side of the vibrator unit, and the ultrasonic vibration from the ultrasonic vibrator provided on the distal end side. A transmission member that transmits to the part, a housing that covers the transmission member and the vibrator unit, a support member that rotatably connects the vibrator unit and the transmission member in the housing, and the housing with respect to the housing The transducer unit is urged in a direction to rotate about the support member, and the treatment portion provided on the distal end side of the transmission member is rotated in a direction opposite to the direction in which the transducer unit rotates. Biasing means for projecting outside the housing.The treatment section is urged by the urging means so as to be immersed in the housing.It is a feature.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
(First embodiment)
1 to 4 relate to a first embodiment of the present invention, FIG. 1 is an explanatory view showing an ultrasonic treatment instrument having the first embodiment of the present invention, and FIG. A sectional view, FIG. 3 is an explanatory view showing a treatment part processed into various shapes suitable for each treatment, and FIG. 3A is an external perspective view showing a knife-like treatment part having an edge. 3 (b) is an external perspective view showing a hook-shaped treatment portion having a curved portion, FIG. 3 (c) is an external perspective view showing a curette-shaped treatment portion, and FIG. 4 is an amount of operating force applied to the treatment portion. It is explanatory drawing which shows the state in which becomes a predetermined amount of force and the treatment portion is immersed in the housing.
[0007]
As shown in FIG. 1, the ultrasonic treatment instrument 1 having the first embodiment of the present invention is connected to a transducer unit 2 having an ultrasonic transducer 2a and a distal end side of the transducer unit 2. A transmission member 3 that transmits ultrasonic vibration from the ultrasonic transducer 2a to a treatment portion 3a provided on the distal end side, and a housing 4 that also serves as a gripping portion that covers the transmission member 3 and the transducer unit 2; Consists mainly of. In addition, the ultrasonic treatment tool 1 according to the present embodiment performs an ultrasonic treatment such as excision by pressing against a treatment target site such as a bone.
[0008]
The transducer unit 2 is coupled to the ultrasonic transducer 2a composed of, for example, a bolt-tight Rajban type transducer, and amplifies the ultrasonic vibration generated by the ultrasonic transducer 2a. The horn 5 is configured to include a cylindrical cover member 6 that covers the ultrasonic transducer 2a. A cord 7 for electrically connecting the ultrasonic transducer 2a and an ultrasonic oscillator (not shown) extends from the cover member 6.
[0009]
The transmission member 3 is attached to the distal end side of the horn 5 with a screw or the like, for example, and is provided on the distal end side of the ultrasonic probe 8 and an ultrasonic probe 8 that transmits ultrasonic vibration from the horn 5. The treatment section 3a is used for performing treatment by sound wave vibration.
The treatment portion 3a has a knife shape 11 having an edge 11a as shown in FIG. 3A. However, the treatment portion 3a has a hook shape 12 having a curved portion 12a as shown in FIG. It is processed into various shapes suitable for each treatment such as a curette shape 13 as shown in FIG.
[0010]
A distal end opening 4a from which the treatment portion 3a protrudes is formed on the distal end side of the housing 4, and a rear end opening 4b through which the cord 7 is inserted is formed on the rear end side. Further, an abutting portion 20 is formed on the inner periphery of the rear end side of the housing 4 so as to project to the inner peripheral side that abuts the outer peripheral surface of the cover member 6.
[0011]
The ultrasonic probe 8 has a support member 21 attached at a position where it hits a node of ultrasonic vibration. The support member 21 is integrally attached to the ultrasonic probe 8 by engaging with a convex portion 22 formed on the ultrasonic probe 8 as shown in FIG. The support member 21 forms a female screw portion 21 a and is screwed into a male screw portion 23 a formed at the tip of two fulcrum members 23, so that the housing 4 is connected to the vibrator unit 2 and the transmission member 3. It is attached to be rotatable. That is, the vibrator unit 2 and the transmission member 3 are rotatable with respect to the housing 4 around the support member 21.
[0012]
In the present embodiment, there is provided urging means for urging the transducer unit 2 with respect to the housing 4 and projecting the treatment portion 3 a provided on the distal end side of the ultrasonic probe 8 to the outside of the housing 4. Is configured.
[0013]
A coil spring 25 as an urging means is attached to the inner periphery of the rear end side of the housing 4 with an adjustment screw 26 as an adjustment member.
The coil spring 25 is provided at a position for urging the vibrator unit 2 and the transmission member 3 counterclockwise on the support member 21 with respect to the housing 4 in FIG. When the amount of operating force is not applied to the treatment portion 3a, the outer peripheral surface of the cover member 6 abuts against the abutting portion 20 of the housing 4, and the treatment portion 3a is separated from the distal end opening 4a of the housing. It is in a protruding state.
[0014]
The adjustment screw 26 is formed with a male screw portion 26 a, and the screw amount of the adjustment screw 26 with respect to the housing 4 can be adjusted by screwing the male screw portion 26 a into the female screw portion 4 c formed in the housing 4. It is. Thereby, the installation force amount of the coil spring 25 can be adjusted.
[0015]
The ultrasonic treatment tool 1 configured as described above is used to hold the outer peripheral surface of the housing 4 and press against a treatment target site such as a bone to perform ultrasonic treatment.
When current is supplied to the ultrasonic transducer 2a from the ultrasonic oscillation device (not shown) via the cord 7, the ultrasonic transducer 2a generates ultrasonic vibration. The ultrasonic vibration generated by the ultrasonic transducer 2 a is amplified by the horn 5 and transmitted to the treatment unit 3 a by the ultrasonic probe 8. For example, a treatment such as excision of a treatment target portion 27 (see FIG. 4) such as a bone is performed by the ultrasonic vibration transmitted to the treatment unit 3a.
[0016]
At this time, when the amount of operating force of the operator, that is, the amount of contact force of the treatment portion 3a with respect to the treatment target portion 27 exceeds the amount of equipment force of the coil spring 25, the coil spring 25 is deformed and contracted, and With respect to the housing 4, the support member 21 is rotated in the clockwise direction in FIG. 1, and the treatment portion 3 a is gradually immersed in the housing 4.
[0017]
Further, when the amount of operating force is applied, before the impedance of the transmission member 3 increases excessively (increases until no ultrasonic vibration can be generated by the ultrasonic transducer 2a), the treatment section 3a is shown in FIG. Immerse in the housing 4. Therefore, the amount of contact force with respect to the treatment target portion 27 of the treatment portion 3a and the stress applied to the transmission member 3 do not exceed a predetermined value. In addition, by adjusting the screwing amount of the adjusting screw 26, it is possible to select the installation force amount of the coil spring 25 according to the treatment target region 27 or according to the characteristics of the transmission member 3.
[0018]
As a result, since the impedance of the transmission member 3 does not increase excessively, the generation of ultrasonic vibration by the ultrasonic vibrator 2a is stabilized. Moreover, the amount of contact force with respect to the treatment target part of the treatment part 3a does not exceed a predetermined value.
[0019]
(Second Embodiment)
FIGS. 5 to 6 relate to a second embodiment of the present invention, FIG. 5 is an explanatory view showing an ultrasonic treatment instrument provided with the second embodiment of the present invention, and FIG. 6 is a treatment section of FIG. FIG.
In the present embodiment, a channel that penetrates the ultrasonic transducer 2a, the horn 5 and the ultrasonic probe 8 of the ultrasonic treatment instrument 1 described in the first embodiment and opens at the distal end side of the treatment portion 3a is provided. At the same time, a switch is provided in the housing 4 to constitute an ultrasonic treatment instrument. Since the other configuration is almost the same as that of FIG.
[0020]
As shown in FIG. 5, a base 31 to which a tube (not shown) connected to a water supply / suction device (not shown) is connected is provided on the rear end side of the transducer unit 2 of the ultrasonic treatment instrument 30 provided with the present embodiment. A channel 32 penetrating the base 31, the ultrasonic transducer 2 a, the horn 5, and the ultrasonic probe 8 is formed. As shown in FIG. 6, the channel 32 is open at the distal end side of the treatment portion 3a.
[0021]
On the inner periphery of the rear end side of the housing 4, for example, a switch 33 having a contact portion 33a is integrally attached to the housing 4, and is electrically connected to an ultrasonic oscillator (not shown) via a cord 33b. .
The switch 33 is turned on when the outer peripheral surface of the cover member 6 of the transducer unit 2 and the contact portion 33a of the switch 33 come into contact with each other, and transmits an electrical signal to the ultrasonic oscillator via the cord 33b, for example. The power supply to the ultrasonic transducer 2a is stopped. At this time, the ultrasonic oscillating device may make a warning sound or notify the operator by turning on the LED.
[0022]
Using the ultrasonic treatment tool 30 configured in this manner, the outer peripheral surface of the housing 4 is held and pressed against a treatment target site (for example, a bone or the like), and similarly to the ultrasonic treatment tool 1 of the first embodiment. Apply ultrasonic treatment.
When the treatment part 3 a is pressed against the treatment target part, the coil spring 25 is deformed and contracted by the amount of contact force of the treatment part 3 a with respect to the treatment target part, and the vibrator unit 2 and the transmission member 3 support the housing 4. The member 21 rotates around the member 21 in the clockwise direction in FIG.
[0023]
At this time, by performing suction with a water supply / suction device (not shown) through the channel 32, it is possible to collect a treatment target site (for example, a bone excision). Further, the treatment target site can be removed or the treatment target site can be washed by supplying air through the channel 32 or by supplying, for example, physiological saline. Furthermore, the ultrasonic probe 8 can be cooled at the same time.
[0024]
Further, when the contact force amount of the treatment portion 3a with respect to the treatment target portion exceeds a predetermined value, the switch 33 is brought into contact with the outer peripheral surface of the cover member 6 of the vibrator unit 2 and the contact portion 33a of the switch 33 as described above. Is turned on, and power supply to the ultrasonic transducer 2a from an ultrasonic oscillator (not shown) is stopped. Thereby, the ultrasonic treatment by an excessive contact force amount can be prevented.
[0025]
As a result, as compared with the ultrasonic treatment instrument 1 of the first embodiment, it is possible to more stably generate ultrasonic vibrations and to prevent the treatment target site from being pressed with an excessive amount of contact force. In addition, by performing air supply, water supply, suction, and the like through the channel 32, it is possible to perform treatment with a good visual field.
[0026]
(Third embodiment)
FIG. 7 is an explanatory view showing an ultrasonic treatment apparatus according to the third embodiment of the present invention.
In the first and second embodiments, an ultrasonic wave that performs ultrasonic treatment such as excision by pressing the treatment portion 3a against a treatment target site such as a bone in a direction substantially perpendicular to the longitudinal axis direction of the transmission member 3. The treatment instrument 1 is provided with a coil spring 25 as an urging means for urging the vibrator unit 2 and the transmission member 3 counterclockwise around the support member 21 with respect to the housing 4. In the present embodiment, the present invention is applied to an ultrasonic treatment instrument that performs ultrasonic treatment by pressing the treatment portion 3a against a treatment target portion in a direction substantially parallel to the longitudinal axis direction of the transmission member 3. In addition, the same code | symbol is attached | subjected to the same structure and description is abbreviate | omitted.
[0027]
As shown in FIG. 7, the ultrasonic treatment instrument 40 of the present embodiment forms a flange 41 on the distal end side of the cover member 6 that covers the transducer unit 2, and the transmission member 3 is a pipe-shaped ultrasonic probe 42. It is composed.
A pressing member 44 is provided integrally with the housing 43 on the inner periphery of the rear end side of the housing 43 that covers the transducer unit 2 and the ultrasonic probe 42.
[0028]
The holding member 44 is formed with a small-diameter portion 45 that supports the outer peripheral surface of the cover member 6 so as to be slidable in the axial direction.
A coil spring 46 as urging means is provided on the outer peripheral side of the cover member 6, and this coil spring 46 is in contact with the rear end surface of the flange 41 and the front end surface of the pressing member 44. When the amount of contact force is not applied to the treatment portion 3a, the distal end surface of the flange 41 abuts against the abutment surface 47 of the housing 43, and the treatment portion 3a protrudes from the distal end opening portion 43a of the housing 43. Yes.
[0029]
The ultrasonic treatment tool 40 configured in this manner is used to hold the outer peripheral surface of the housing 43 and press against a treatment target site (for example, bone or the like) to perform ultrasonic treatment.
When ultrasonic vibration is generated in a state where the distal end surface of the treatment portion 3a is pressed against the treatment target site, the treatment target site is crushed and emulsified by a cavitation phenomenon. The crushed and emulsified treatment target site is aspirated (collected) through the channel 32.
[0030]
At this time, if the amount of force (axial amount of force) pressing the treatment portion 3a against the treatment target site exceeds a predetermined value, the coil spring 46 is contracted, and the vibrator unit 2 and the transmission member 3 are in FIG. The treatment portion 3 a is immersed in the housing 43 by moving rightward.
As a result, it is possible to obtain the same effect as that of the ultrasonic treatment instrument according to the second embodiment.
[0031]
The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the gist of the present invention.
[0032]
By the way, conventionally, an ultrasonic treatment device that combines an ultrasonic wave with an automatic suturing device, an automatic anastomosis device, etc., and sutures or anastomoses a treatment target part has a large treatment portion structure, so that an anastomosis of a blood vessel, a suture closure of a membrane, etc. It was difficult to treat fine parts.
Therefore, an object of the present invention is to realize an ultrasonic treatment instrument capable of treating a small part such as a blood vessel anastomosis or a suture closure of a membrane.
[0033]
As shown in FIG. 8, the ultrasonic treatment instrument 61 transmits a treatment instrument main body 62 having an ultrasonic transducer 62a and ultrasonic treatment from the ultrasonic transducer 62a to a treatment section 63a provided on the distal end side. A jaw 64 that is a gripping part that grips a treatment target region between the member 63 and a treatment part 63 a provided on the distal end side of the transmission member 63, and a distal end side of the treatment instrument main body 62. The cover member 65 is shaped mainly to cover the transmission member 63.
[0034]
The treatment instrument main body 62 is coupled to the ultrasonic transducer 62a configured by, for example, a bolt-tight Rajban transducer, and amplifies the ultrasonic vibration generated by the ultrasonic transducer 62a. And a horn 66 to be made. A cord 67 for electrically connecting the ultrasonic transducer 62a and an ultrasonic oscillator (not shown) extends from the cover member 65.
[0035]
The transmission member 63 is an ultrasonic probe 68 that transmits ultrasonic vibration attached to the distal end side of the horn 66 with, for example, a screw and the like, and performs treatment by ultrasonic vibration on the distal end side of the ultrasonic probe 68. The treatment section 63a.
[0036]
The jaw 64 is pivotally attached to, for example, the distal end side of the cover member 65, and a lower end of an urging spring 69 is fixed to the jaw 64, for example, and the upper end of the urging spring 69 is connected to the cover member 65. It is fixed inside the tip side.
The jaw 64 is rotated in the closing direction with respect to the treatment portion 63 a against the urging force of the urging spring 69, and treatment is performed between the distal end side of the jaw 64 and the treatment portion 63 a of the ultrasonic probe 68. The target part can be grasped. Note that the jaw 64 may be configured by forming a groove portion 70 fitted to the thumb 70a, for example, as shown in FIG. 11 without being pivotally attached to the distal end side of the cover member 65.
[0037]
In the present embodiment, a needle 71 is provided as a protruding member as a tissue gripping member capable of treating a fine part such as an anastomosis of a blood vessel or suture closure of a membrane in the treatment portion 63a provided on the distal end side of the ultrasonic probe 68, A penetration part 72 through which the needle 71 penetrates is formed in the jaw 64.
[0038]
For example, as shown in FIG. 9A, the needle 71 has a shape that is curved toward the jaw 64 from the treatment portion 63 a on the distal end side of the ultrasonic probe 68.
The needle 71 may be provided at the opening on the front end side of the cover member 65 as shown in FIG.
[0039]
Using the ultrasonic treatment instrument 61 configured as described above, the outer peripheral surface of the cover member 65 is held by the hand 73, and the treatment target portions 74a and 74b such as blood vessels and membranes are pierced by the needle 71 as shown in FIG. It grasps between the treatment part 63a and the jaw 64, and performs ultrasonic treatment. As a result, it is possible to treat a small part such as an anastomosis of a blood vessel or suture closure of a membrane, and manipulation of a treatment target part to be sutured or anastomosed becomes easy.
[0040]
By the way, conventionally, when surgically operating a soka hernia, a suturing operation such as a complicated needle thread or an expensive hernia stapler has been used.
In view of the above, an object of the present invention is to realize an ultrasonic treatment instrument capable of reliably and easily performing suturing of a treatment target site such as the peritoneum without using a needle or an expensive stapler.
[0041]
As shown in FIG. 12, the ultrasonic treatment instrument 81 includes a handpiece 82 having an ultrasonic transducer (not shown), a transmission member 83 that transmits ultrasonic vibration from the ultrasonic transducer to the distal end side, It is mainly composed of an elongated cylindrical sheath 84 that is a protective member that covers the transmission member 83.
[0042]
A cord 85 for electrically connecting the ultrasonic transducer and an ultrasonic oscillator (not shown) extends from the rear end of the handpiece 82.
The handpiece 82 is provided with a fixed handle 86 that is integrally formed, and a movable operation handle 87 that can be moved toward and away from the fixed handle 86.
The transmission member 83 includes an ultrasonic probe 88 that transmits ultrasonic vibration from an ultrasonic transducer, and a tissue grasping member 89 that is pivotally attached to the distal end side of the ultrasonic probe 88.
[0043]
A rear end of the ultrasonic probe 88 is inserted into the handpiece 82 and connected to the movable operation handle 87. For this reason, by operating the movable operation handle 87 with respect to the fixed handle 86, the ultrasonic probe 88 transmits an operation instruction for grasping or releasing from the movable operation handle 87 to the tissue grasping member 89. It has become.
[0044]
As a result, as shown in FIG. 13A, the tissue grasping member 89 pierces the treatment target sites 90a and 90b such as the peritoneum, and further pivots from this state toward the ultrasonic probe 88 side. Then, the ultrasonic probe 88 is moved toward the ultrasonic probe 88, and as shown in FIG. 13B, the treatment target portions 90a and 90b can be grasped and ultrasonically bonded to the ultrasonic probe 88. .
[0045]
Further, for example, as in the ultrasonic treatment tool 91 shown in FIG. 14, a bending probe 92a in which the distal end side of the ultrasonic probe 92 is bent, and a tissue gripping member 93 that holds a treatment target portion between the bending probe 92a. May be configured to be pivotally attached to the distal end side of the drive shaft 94 connected to the movable operation handle 87. In the drawing, for example, the tissue grasping member 93 pierces one end of the peritoneal opening 95 after hernia sac excision and draws it to the other end on the left side to perform ultrasonic treatment.
The ultrasonic vibration from the ultrasonic vibrator may be transmitted to the drive shaft 94 so that the tissue gripping member 93 can perform ultrasonic treatment.
[0046]
As shown in FIG. 15 (a), the tissue gripping member 93 pivotally attached to the distal end side of the drive shaft 94 closes the movable operation handle 87 to the fixed handle 86 side, thereby bending probe 92a. It rotates in the closing direction toward the side and translates to the hand side. Then, as shown in FIG. 15 (b), the tissue grasping member 93 moves the treatment target parts 90a, 90b such as the peritoneum toward the bending probe 92a side, and the treatment target part between the bending probe 92a. 90a and 90b can be gripped and ultrasonically bonded. In addition, the bending probe 92a may be configured by providing a protrusion 96 that locks the treatment target site so that the treatment target site does not escape as shown in FIG.
[0047]
Further, as shown in FIG. 16B, a tissue gripping member 93 formed in an R shape is attached to the drive shaft 94, and similarly, a bending probe 92a is also formed in an R shape so as to grip a treatment target site. Anyway. In this case, the treatment target region can be grasped between the bending probe 92a only by hooking the treatment target region with the tissue gripping member 93 and translating it to the proximal side.
[0048]
As a result, it is possible to reliably and easily perform the suturing of the treatment target site such as the peritoneum without using a needle or an expensive stapler.
[0049]
The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention.
[0050]
[Appendix]
(Additional Item 1) A vibrator unit having an ultrasonic vibrator;
A transmission member connected to the distal end side of the transducer unit and transmitting ultrasonic vibration from the ultrasonic transducer to a treatment section provided on the distal end side;
A housing covering the transmission member and the vibrator unit;
An urging means for urging the vibrator unit with respect to the housing and causing a treatment portion provided on a distal end side of the transmission member to protrude outside the housing;
An ultrasonic treatment instrument comprising:
[0051]
(Additional Item 2) The ultrasonic treatment instrument according to Additional Item 1, wherein a fulcrum member that rotatably connects the transmission member is provided in the housing.
[0052]
(Additional Item 3) The ultrasonic treatment instrument according to Additional Item 1 or 2, wherein the biasing means is a coil spring.
[0053]
(Additional Item 4) The ultrasonic treatment instrument according to Additional Items 1 to 3, wherein the urging unit is provided with an adjustment member that arbitrarily adjusts the amount of the force of the urging unit.
[0054]
(Additional Item 5) The ultrasonic treatment instrument according to Additional Items 1 to 4, wherein a channel that penetrates the ultrasonic transducer and the transmission member and has an opening is provided in the treatment portion.
[0055]
(Additional Item 6) A treatment instrument body having an ultrasonic transducer,
A transmission member for transmitting ultrasonic vibration from the ultrasonic vibrator to a treatment section provided on the distal end side;
A gripping part for gripping a treatment target site with a treatment part provided on the distal end side of the transmission member;
A tissue grasping member provided in the vicinity of the treatment section;
An ultrasonic treatment instrument comprising:
[0056]
(Additional Item 7) The ultrasonic treatment instrument according to Additional Item 6, wherein the tissue gripping member is an adsorbing member that adsorbs biological tissue.
[0057]
(Additional Item 8) The ultrasonic treatment instrument according to Additional Item 6, wherein the tissue gripping member is a protruding member that pierces a biological tissue.
[0058]
(Additional Item 9) The ultrasonic treatment instrument according to Additional Item 8, wherein the protruding member is curved.
[0059]
(Additional Item 10) The ultrasonic treatment instrument according to Additional Item 8, wherein the protruding member is provided on a distal end side of the treatment portion.
[0060]
(Additional Item 11) The ultrasonic treatment instrument according to Additional Item 8, wherein the protruding member is provided on a distal end side of a cover member that covers the transmission member.
[0061]
(Additional Item 12) A handpiece having an ultrasonic transducer;
A transmission member for transmitting ultrasonic vibration from the ultrasonic vibrator to the tip side;
A tissue grasping member that is provided on the distal end side of the transmission member, and that approaches the transmission member side by piercing and rotating the treatment target site; and
An ultrasonic treatment instrument comprising:
[0062]
(Additional Item 13) A handpiece having an ultrasonic transducer;
A transmission member for transmitting ultrasonic vibration from the ultrasonic vibrator to a treatment section provided on the distal end side;
A gripping part for gripping a treatment target site with a treatment part provided on the distal end side of the transmission member;
A tissue gripping member that is provided on the distal end side of the gripping portion, and stabs and rotates the treatment target site and moves toward the treatment portion side provided on the distal end side of the transmission member;
An ultrasonic treatment instrument comprising:
[0063]
(Additional Item 14) The ultrasonic treatment instrument according to Additional Item 13, wherein the tissue grasping member is movable in parallel to the proximal side.
[0064]
(Additional Item 15) The ultrasonic treatment instrument according to Additional Item 13, wherein the treatment portion is bent at a distal end side.
[0065]
(Additional Item 16) The ultrasonic treatment instrument according to Additional Item 13 or 15, wherein the treatment portion is provided with a protrusion that locks the treatment target site.
[0066]
[Purpose of supplementary notes]
(Appendix 1-5)
An object of the present invention is to provide an ultrasonic treatment instrument that stably generates ultrasonic vibrations and prevents the treatment target site from being pressed with an excessive amount of contact force.
[0067]
(Appendix 6-11)
It is an object of the present invention to provide an ultrasonic treatment device capable of treating a small part such as a blood vessel anastomosis or a membrane suture closure.
[0068]
(Additional items 12-16)
An object of the present invention is to provide an ultrasonic treatment instrument capable of reliably and easily performing suturing of a treatment target site such as the peritoneum without using a needle or an expensive stapler.
[0069]
[Advantageous effects]
(Appendix 1-5)
It is possible to stably generate ultrasonic vibration and to prevent the treatment target site from being pressed with an excessive amount of contact force.
[0070]
(Appendix 6-11)
It is possible to treat small parts such as blood vessel anastomosis and membrane suture closure.
[0071]
(Additional items 12-16)
Suture of a treatment target site such as the peritoneum can be reliably and easily performed.
[0072]
【The invention's effect】
As described above, according to the present invention,By eliminating the excessive rise in the impedance of the transmission memberIt is possible to stably generate ultrasonic vibration and to prevent the treatment target site from being pressed with an excessive amount of contact force.
[Brief description of the drawings]
FIG. 1 is an explanatory view showing an ultrasonic treatment apparatus provided with a first embodiment of the present invention.
FIG. 2 is a cross-sectional view taken along line AA in FIG.
FIG. 3 is an explanatory view showing treatment parts processed into various shapes suitable for each treatment, and FIG. 3 (a) is an external perspective view showing a knife-like treatment part having an edge, FIG. FIG. 3B is an external perspective view showing a hook-shaped treatment portion having a curved portion, and FIG. 3C is an external perspective view showing a curette-shaped treatment portion.
4 is an explanatory view showing a state in which the amount of operating force applied to the treatment portion of FIG. 1 is a predetermined amount of force and the treatment portion is immersed in the housing. FIG.
FIG. 5 is an explanatory view showing an ultrasonic treatment instrument provided with a second embodiment of the present invention.
6 is an enlarged view of the treatment portion of FIG.
FIG. 7 is an explanatory view showing an ultrasonic treatment apparatus according to a third embodiment of the present invention.
FIG. 8 is an explanatory view showing an ultrasonic treatment instrument for performing ultrasonic suturing.
9 is a view taken in the direction of an arrow A in FIG. 8. FIG. 9A is an explanatory diagram when the curved needle is attached to the ultrasonic probe, and FIG. 9B is a diagram illustrating the curved needle as a cover member. Explanatory drawing when attached.
FIG. 10 is an explanatory diagram when a treatment target site is pierced with a needle and is gripped between a treatment unit and a jaw.
FIG. 11 is an explanatory diagram showing a modification of FIG.
FIG. 12 is an explanatory view showing an ultrasonic treatment tool for performing ultrasonic bonding.
13 is an explanatory diagram when the treatment target region is grasped by the tissue grasping member of FIG. 12, and FIG. 13 (a) is an explanatory diagram when the treatment target region is pierced by the tissue grasping member, FIG. (B) is explanatory drawing at the time of carrying out closing operation of the tissue holding member from the state of the figure (a), and hold | gripping between ultrasonic probes.
14 is an explanatory diagram showing a modification of FIG.
FIG. 15 is an enlarged view showing the operation of the treatment section of FIG. 14, in which FIG. 15 (a) rotates in the direction in which the tissue gripping member closes toward the bending probe side and translates toward the proximal side. FIG. 15B is an explanatory diagram when the ultrasonic treatment is performed by grasping the treatment target site by the operation of FIG.
16 is an explanatory view showing a modified example of the treatment section of FIG. 15, FIG. 16 (a) is an explanatory view showing a bending probe provided with a protrusion for locking the treatment target site, and FIG. 16 (b) is an illustration. Explanatory drawing which shows the tissue holding member and bending probe which were formed in R shape.
[Explanation of symbols]
1, 30, 40,
61, 81, 91 ... Ultrasonic treatment device
2, 62 ... vibrator unit
2a, 62a ... ultrasonic transducer
3, 63, 83 ... transmission member
3a, 63a ... treatment part
4, 43 ... Housing
6, 65 ... Cover member
8, 42, 68,
88, 92 ... ultrasonic probe
20 ... Abutting section
21 ... Support member
25, 46 ... coil spring (biasing means)
26 ... Adjustment screw (adjustment member)
31 ... clasp
32 ... Channel
33… Switch
62 ... Treatment tool body
64 ... Jaw (gripping part)
69… Biasing spring
71 ... Needle (protruding member)
72 ... penetration part
82: Handpiece
89, 93 ... Tissue grasping member
92a ... bending probe
96 ... Protrusions

Claims (6)

超音波振動子を有する振動子ユニットと、
この振動子ユニットの先端側に連結し、前記超音波振動子からの超音波振動を先端側に設けた処置部に伝達する伝達部材と、
この伝達部材及び前記振動子ユニットを覆うハウジングと、
このハウジングに対して前記振動子ユニットを付勢し、前記伝達部材の先端側に設けた処置部を前記ハウジング外部に突出させる付勢手段と、を具備し、
前記処置部は、前記付勢手段により前記ハウジング内に没入可能に付勢されていることを特徴とする超音波処置具。
A vibrator unit having an ultrasonic vibrator;
A transmission member connected to the distal end side of the transducer unit and transmitting ultrasonic vibration from the ultrasonic transducer to a treatment section provided on the distal end side;
A housing covering the transmission member and the vibrator unit;
Urging means for urging the vibrator unit with respect to the housing and projecting a treatment portion provided on the distal end side of the transmission member to the outside of the housing;
The ultrasonic treatment instrument, wherein the treatment section is urged by the urging means so as to be immersed in the housing.
前記振動子ユニットは、前記付勢手段により前記ハウジングの軸方向に付勢されていることを特徴とする請求項1に記載の超音波処置具。  The ultrasonic treatment instrument according to claim 1, wherein the transducer unit is biased in the axial direction of the housing by the biasing means. 超音波振動子を有する振動子ユニットと、
この振動子ユニットの先端側に連結し、前記超音波振動子からの超音波振動を先端側に設けた処置部に伝達する伝達部材と、
この伝達部材及び前記振動子ユニットを覆うハウジングと、
このハウジング内に前記振動子ユニット及び前記伝達部材を回動自在に連結する支持部材と、
前記ハウジングに対して前記振動子ユニットを、前記支持部材を中心に回動する方向に付勢し、前記伝達部材の先端側に設けた処置部を、前記振動子ユニットが回動する方向とは逆方向に回動させて前記ハウジング外部に突出させる付勢手段と、
を具備し
前記処置部は、前記付勢手段により前記ハウジング内に没入可能に付勢されていることを特徴とする超音波処置具。
A vibrator unit having an ultrasonic vibrator;
A transmission member connected to the distal end side of the transducer unit and transmitting ultrasonic vibration from the ultrasonic transducer to a treatment section provided on the distal end side;
A housing covering the transmission member and the vibrator unit;
A support member rotatably connecting the vibrator unit and the transmission member in the housing;
What is the direction in which the vibrator unit turns the treatment unit provided on the distal end side of the transmission member by urging the vibrator unit with respect to the housing in a direction of turning about the support member? Urging means for rotating in the reverse direction and projecting outside the housing;
Equipped with,
The ultrasonic treatment instrument , wherein the treatment section is urged by the urging means so as to be immersed in the housing .
前記付勢手段は、コイルばねであることを特徴とする請求項1から請求項3のいずれか1項に記載の超音波処置具。  The ultrasonic treatment instrument according to any one of claims 1 to 3, wherein the biasing means is a coil spring. 前記付勢手段に前記付勢手段の装備力量を任意に調整する調整部材を設けたことを特徴とする請求項1から請求項4のいずれか1項に記載の超音波処置具。  The ultrasonic treatment instrument according to any one of claims 1 to 4, wherein an adjustment member that arbitrarily adjusts the amount of force of the urging unit is provided in the urging unit. 前記超音波振動子及び前記伝達部材を貫通し前記処置部に開口部を有するチャンネルを設けたことを特徴とする請求項1から請求項5のいずれか1項に記載の超音波処置具。  The ultrasonic treatment instrument according to any one of claims 1 to 5, wherein a channel that penetrates the ultrasonic transducer and the transmission member and has an opening in the treatment portion is provided.
JP24758999A 1999-09-01 1999-09-01 Ultrasonic treatment device Expired - Fee Related JP4422243B2 (en)

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JP4578850B2 (en) * 2004-04-19 2010-11-10 オリンパス株式会社 Ultrasonic treatment device
JP5430161B2 (en) * 2008-06-19 2014-02-26 オリンパスメディカルシステムズ株式会社 Ultrasonic surgical device
US9622766B2 (en) * 2013-08-22 2017-04-18 Misonix Incorporated Ultrasonic instrument assembly and method for manufacturing same
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