JP4472395B2 - 超音波手術システム - Google Patents
超音波手術システム Download PDFInfo
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Description
図1は、この発明の実施の形態である超音波手術システムの概略構成を例示する模式図である。図1において、超音波手術システム1は、電源スイッチ5a、表示部5b、およびコネクタ5cが配置された装置本体5と、ペダル3a,3bが配置されたフットスイッチ3を有しており、フットスイッチ3は、ケーブル4を介して装置本体5と電気的に接続される。また、装置本体5には、圧電セラミック等によって構成される超音波振動子を内蔵したハンドピース20が電気的に接続される。ハンドピース20は、内蔵した超音波振動子と一端が接続され、他端にプラグ20cを設けたケーブル20bを有し、プラグ20cを装置本体5のコネクタ5cに接続することで、上述した装置本体5とハンドピース20との電気的接続がなされる。
つぎに、この発明の実施の形態2について説明する。上述した実施の形態1では、プローブおよびハンドピースに記憶部をそれぞれ配置し、各記憶部に格納されたパラメータをもとに、所望の超音波出力信号の出力制御を行う出力制御パラメータを演算出力するようにしていたが、この実施の形態2では、物理的なプローブ自体またはハンドピース自体を識別する各識別子をそれぞれに設け、また、所望の超音波出力信号の出力制御を行う出力制御パラメータを格納した制御情報記憶部を制御装置本体に設け、各識別子によって識別されたプローブおよびハンドピースに対応する出力制御パラメータをこの制御情報記憶部から読み出すようにしている。
つぎに、この発明の実施の形態3について説明する。上述した実施の形態1では、記憶部41が緩衝材41を介してプローブ40aの内壁面に配置されるように構成していたが、この実施の形態3では、記憶部41が交換可能に固定された支持棒をプローブ内に挿入し、このプローブと記憶部41とが直接接触しない状態にて、このプローブにおける定在波の節に記憶部41を配置している。
物理的なプローブ自体を識別するプローブ識別情報を含む第1の識別子を有し、前記超音波振動子に接続され、該超音波振動子から出力された超音波振動を前記被処置体に伝達するプローブと、
物理的な超音波振動子自体を識別する振動子識別情報を含む第2の識別子と前記超音波振動子とを有するハンドピースと、
前記プローブ識別情報および前記振動子識別情報に対応し、前記超音波振動子の駆動制御を行う出力制御パラメータを読み書き自在に格納する記憶手段と、
前記第1の識別子から読み取ったプローブ識別情報と前記プローブとの対応付けを行うとともに、前記第2の識別子から読み取った振動子識別情報と前記ハンドピースとの対応付けを行い、前記記憶手段から前記プローブ識別情報および前記振動子識別情報に対応する前記出力制御パラメータを読み取る第1の制御手段と、
前記第1の制御手段から入力された出力制御パラメータをもとに、前記超音波振動子の駆動制御を行う第2の制御手段と、
を備えたことを特徴とする超音波手術システム。
前記第1の制御手段は、前記プローブ識別情報および前記振動子識別情報に対応付けられた前記駆動周波数として、前記第2の制御手段によって検出された前記共振周波数に対応する情報を前記記憶手段に格納することを特徴とする付記1に記載の超音波手術システム。
前記出力制御パラメータは、前記駆動電流の出力制御における基準電流値に対応する駆動電流パラメータを含み、
前記第1の制御手段は、前記プローブ識別情報および前記振動子識別情報に対応付けられた前記駆動電流パラメータとして、前記第2の制御手段によって検出された前記駆動電流の値を前記記憶手段に格納することを特徴とする付記1または2に記載の超音波手術システム。
前記出力制御パラメータは、前記駆動電圧の値を決定する昇圧比を設定する昇圧比パラメータを含み、
前記第1の制御手段は、前記プローブ識別情報および前記振動子識別情報に対応付けられた前記昇圧比パラメータとして、前記第2の制御手段によって検出された前記昇圧比に対応する情報を前記記憶手段に格納することを特徴とする付記1〜3のいずれか一つに記載の超音波手術システム。
前記出力制御パラメータは、前記並列コイルのインダクタンス値設定における基準値に対応するコイルパラメータを含み、
前記第1の制御手段は、前記プローブ識別情報および前記振動子識別情報に対応する前記コイルパラメータとして、前記第2の制御手段によって検出された前記並列コイルのインダクタンス値を前記記憶手段に格納することを特徴とする付記1〜4のいずれか一つに記載の超音波手術システム。
前記超音波振動に対応する定在波の節の位置に配置され、前記超音波振動子の駆動制御に関するプローブ出力パラメータを読み書き自在に格納する記憶手段を備えたことを特徴とするプローブ。
前記固定手段は、先端部に前記記憶手段を交換可能に固定する支持棒であり、該支持棒が前記記憶手段を固定した状態にて前記開口部に挿入されかつ当該プローブに螺子締結された場合、前記支持棒は、前記固定した記憶手段を当該プローブに非接触の状態で前記定在波の節の位置に配置することを特徴とする付記7に記載のプローブ。
前記固定手段は、
前記開口部に設けられ、前記記憶手段に伝わる前記超音波振動による応力を緩和するとともに、前記記憶手段を交換可能に固定する緩衝材と、
前記緩衝材に固定された前記記憶手段を前記側壁部内に閉塞する蓋部材と、
を備えたことを特徴とする付記7に記載のプローブ。
3 フットスイッチ
3a,3b ペダル
4,20b,30b ケーブル
5 装置本体
5a 電源スイッチ
5b 表示部
5c コネクタ
7 情報読取部
8 スイッチ検知部
9 CPU
9a RAM
10 出力制御部
10a PLL回路
10b 増幅部
10c 電圧・電流検出部
10d 昇圧部
10e マッチング部
11 ADC
12 DAC
13 変調信号発生部
14 表示回路
15 音源回路
16 吸引処理装置
16a 送水口
16b 吸引口
17,25 読取部
18 制御情報記憶部
20 ハンドピース
20a,30a 接続部
20c,30c プラグ
20d,20e,83 配線
21 超音波振動子
22,82 締結部
22a,22b,40a−1,40a−2,80a−1,80a−2,81a,81b,82a,82b 螺子電極
22c,40a−3,80a−3,81c,82c 螺子絶縁部
23,41 記憶部
24,45 識別子
30 吸引型ハンドピース
30d 吸引チューブ
30e,43,45 開口部
40 シザース型処置治具
40a,50a,60a,70a,80a プローブ
40b,50b,60b,70b プローブカバー
40d 押圧部
40e グリップ
42 シール材
44,46,84 緩衝材
47 蓋
50 フック型処置治具
60 砕石型処置治具
70 吸引型処置治具
70d 送水チューブ
81 支持棒
L1,L3,L5 最大幅
L2,L4,L6 最小間隔
S1,S1a 振動子出力情報
S2,S2a プローブ出力情報
S3 PLL制御情報
S4 電圧制御情報
S5 コイル設定情報
S6 超音波出力信号
S7 駆動周波数情報
S8 駆動電流情報
S9 昇圧比情報
S10 マッチングコイル情報
S11 パラメータ更新情報
S12 変調信号
S13 吸引制御信号
S14 ハンドピース特定情報
S15 プローブ特定情報
Claims (12)
- 超音波振動子をその共振点にて超音波出力するように駆動制御し、前記超音波振動子から適宜出力される超音波振動を被処置体に伝達し、該被処置体に対する医療処置を行う超音波手術システムにおいて、
前記超音波振動に対応する定在波の節の位置に、前記超音波振動子の駆動制御に関するプローブ出力パラメータを読み書き自在に格納する第1の記憶手段と、前記第1の記憶手段を交換可能に固定する固定手段とを有し、前記超音波振動子に接続され、該超音波振動子から出力された超音波振動を前記被処置体に伝達するプローブと、
前記超音波振動子と該超音波振動子の駆動制御に関する振動子出力パラメータを読み書き自在に格納する第2の記憶手段とを有するハンドピースと、
前記第1の記憶手段から読み取ったプローブ出力パラメータと前記第2の記憶手段から読み取った振動子出力パラメータとをもとに、前記超音波振動子の駆動制御を行う出力制御パラメータを演算出力する演算手段と、
前記演算手段から入力された出力制御パラメータをもとに、前記超音波振動子の駆動制御を行う制御手段と、
を備え、
前記プローブは、前記定在波の節の位置である該プローブの側壁部内に前記第1の記憶手段を配置する開口部が設けられ、
前記固定手段は、
前記開口部に設けられ、前記第1の記憶手段に伝わる前記超音波振動による応力を緩和するとともに、前記側壁部内に前記第1の記憶手段を交換可能に固定する緩衝材と、
前記緩衝材に固定された前記第1の記憶手段を前記側壁部内に閉塞する蓋部材と、
を備えたことを特徴とする超音波手術システム。 - 超音波振動子をその共振点にて超音波出力するように駆動制御し、前記超音波振動子から適宜出力される超音波振動を被処置体に伝達し、該被処置体に対する医療処置を行う超音波手術システムにおいて、
前記超音波振動に対応する定在波の節の位置に、前記超音波振動子の駆動制御に関するプローブ出力パラメータを読み書き自在に格納する第1の記憶手段と、前記第1の記憶手段を交換可能に固定する固定手段とを有し、前記超音波振動子に接続され、該超音波振動子から出力された超音波振動を前記被処置体に伝達するプローブと、
前記超音波振動子と該超音波振動子の駆動制御に関する振動子出力パラメータを読み書き自在に格納する第2の記憶手段とを有するハンドピースと、
前記第1の記憶手段から読み取ったプローブ出力パラメータと前記第2の記憶手段から読み取った振動子出力パラメータとをもとに、前記超音波振動子の駆動制御を行う出力制御パラメータを演算出力する演算手段と、
前記演算手段から入力された出力制御パラメータをもとに、前記超音波振動子の駆動制御を行う制御手段と、
を備え、
前記プローブは、前記超音波振動子との接続端と前記定在波の節の位置とを少なくとも連通する開口部が設けられ、
前記固定手段は、先端部に前記第1の記憶手段を交換可能に固定する支持棒であり、該支持棒が前記第1の記憶手段を固定した状態にて前記開口部に挿入されかつ前記プローブに螺子締結された場合、前記支持棒は、前記固定した第1の記憶手段を前記プローブに非接触の状態で前記定在波の節の位置に配置することを特徴とする超音波手術システム。 - 前記プローブ出力パラメータおよび前記振動子出力パラメータの少なくとも一方は、前記プローブが接続された前記超音波振動子の共振周波数を検出する周波数掃引処理における基準周波数に対応する駆動周波数を少なくとも含み、
前記演算手段は、前記第1の記憶手段および前記第2の記憶手段の少なくとも一方に、前記制御手段によって検出された前記共振周波数に対応する情報を前記駆動周波数として格納することを特徴とする請求項1または2に記載の超音波手術システム。 - 前記制御手段は、前記プローブに伝達される超音波振動の振幅を決定する駆動電流の出力制御を行う電流制御手段を備え、
前記プローブ出力パラメータおよび前記振動子出力パラメータの少なくとも一方は、前記駆動電流の値を設定する前記出力制御パラメータを演算出力する駆動電流設定パラメータを含み、
前記演算手段は、前記第1の記憶手段および前記第2の記憶手段の少なくとも一方に、前記制御手段によって検出された前記駆動電流の値に対応する前記駆動電流設定パラメータを格納することを特徴とする請求項1〜3のいずれか一つに記載の超音波手術システム。 - 前記制御手段は、前記超音波振動子および前記プローブのインピーダンス特性に依存する駆動電圧値を決定する昇圧比を設定する昇圧設定手段を備え、
前記プローブ出力パラメータおよび前記振動子出力パラメータの少なくとも一方は、前記昇圧比を設定する昇圧比パラメータを含み、
前記演算手段は、前記第1の記憶手段および前記第2の記憶手段の少なくとも一方に、前記制御手段によって検出された前記昇圧比に対応する情報を前記昇圧比パラメータとして格納することを特徴とする請求項1〜4のいずれか一つに記載の超音波手術システム。 - 前記制御手段は、前記超音波振動子および前記プローブのインピーダンス整合を行う並列コイルの定数を選択し、該並列コイルのインダクタンス値を設定するコイル設定手段を備え、
前記プローブ出力パラメータおよび前記振動子出力パラメータの少なくとも一方は、前記並列コイルのインダクタンス値設定における基準値に対応するコイルパラメータを含み、
前記演算手段は、前記第1の記憶手段および前記第2の記憶手段の少なくとも一方に、前記制御手段によって検出された前記並列コイルのインダクタンス値を前記コイルパラメータとして格納することを特徴とする請求項1〜5のいずれか一つに記載の超音波手術システム。 - 超音波振動子をその共振点にて超音波出力するように駆動制御し、前記超音波振動子から適宜出力される超音波振動を被処置体に伝達し、該被処置体に対する医療処置を行う超音波手術システムにおいて、
前記超音波振動に対応する定在波の節の位置に、物理的なプローブ自体を識別するプローブ識別情報を含む第1の識別子と、前記第1の識別子を交換可能に固定する固定手段とを有し、前記超音波振動子に接続され、該超音波振動子から出力された超音波振動を前記被処置体に伝達するプローブと、
物理的な超音波振動子自体を識別する振動子識別情報を含む第2の識別子と前記超音波振動子とを有するハンドピースと、
前記プローブ識別情報および前記振動子識別情報に対応し、前記超音波振動子の駆動制御を行う出力制御パラメータを読み書き自在に格納する記憶手段と、
前記第1の識別子から読み取ったプローブ識別情報と前記プローブとの対応付けを行うとともに、前記第2の識別子から読み取った振動子識別情報と前記ハンドピースとの対応付けを行い、前記記憶手段から前記プローブ識別情報および前記振動子識別情報に対応付けられた前記出力制御パラメータを読み取る第1の制御手段と、
前記第1の制御手段から入力された出力制御パラメータをもとに、前記超音波振動子の駆動制御を行う第2の制御手段と、
を備え、
前記プローブは、前記定在波の節の位置である該プローブの側壁部内に前記第1の識別子を配置する開口部が設けられ、
前記固定手段は、
前記開口部に設けられ、前記第1の識別子に伝わる前記超音波振動による応力を緩和するとともに、前記側壁部内に前記第1の識別子を交換可能に固定する緩衝材と、
前記緩衝材に固定された前記第1の識別子を前記側壁部内に閉塞する蓋部材と、
を備えたことを特徴とする超音波手術システム。 - 超音波振動子をその共振点にて超音波出力するように駆動制御し、前記超音波振動子から適宜出力される超音波振動を被処置体に伝達し、該被処置体に対する医療処置を行う超音波手術システムにおいて、
前記超音波振動に対応する定在波の節の位置に、物理的なプローブ自体を識別するプローブ識別情報を含む第1の識別子と、前記第1の識別子を前記定在波の節の位置に交換可能に固定する固定手段とを有し、前記超音波振動子に接続され、該超音波振動子から出力された超音波振動を前記被処置体に伝達するプローブと、
物理的な超音波振動子自体を識別する振動子識別情報を含む第2の識別子と前記超音波振動子とを有するハンドピースと、
前記プローブ識別情報および前記振動子識別情報に対応し、前記超音波振動子の駆動制御を行う出力制御パラメータを読み書き自在に格納する記憶手段と、
前記第1の識別子から読み取ったプローブ識別情報と前記プローブとの対応付けを行うとともに、前記第2の識別子から読み取った振動子識別情報と前記ハンドピースとの対応付けを行い、前記記憶手段から前記プローブ識別情報および前記振動子識別情報に対応付けられた前記出力制御パラメータを読み取る第1の制御手段と、
前記第1の制御手段から入力された出力制御パラメータをもとに、前記超音波振動子の駆動制御を行う第2の制御手段と、
を備え、
前記プローブは、前記超音波振動子との接続端と前記定在波の節の位置とを少なくとも連通する開口部が設けられ、
前記固定手段は、先端部に前記第1の識別子を交換可能に固定する支持棒であり、該支持棒が前記第1の識別子を固定した状態にて前記開口部に挿入されかつ前記プローブに螺子締結された場合、前記支持棒は、前記固定した第1の識別子を前記プローブに非接触の状態で前記定在波の節の位置に配置することを特徴とする超音波手術システム。 - 前記第2の制御手段は、前記出力制御パラメータをもとに周波数掃引処理を行い、前記超音波振動子に対して、前記プローブが接続された前記超音波振動子の共振周波数にて超音波出力する駆動制御を行うことを特徴とする請求項7または8に記載の超音波手術システム。
- 前記出力制御パラメータは、前記周波数掃引処理における基準周波数に対応する駆動周波数、前記プローブに伝達される超音波振動の振幅を決定する駆動電流の値を設定する駆動電流パラメータ、前記超音波振動子の定格電圧値、前記超音波振動子の超音波出力変調に関する出力変調パラメータ、前記超音波振動子および前記プローブのインピーダンス特性に依存する駆動電圧値を決定する昇圧比を設定する昇圧比パラメータ、および前記超音波振動子および前記プローブのインピーダンス整合を行う並列コイルのインダクタンス値設定における基準値に対応するコイルパラメータの少なくとも一つを含むことを特徴とする請求項7〜9のいずれか一つに記載の超音波手術システム。
- 前記第1の制御手段は、前記第2の制御手段によって検出された前記出力制御パラメータに含まれる各パラメータの少なくとも一つを前記記憶手段に格納することを特徴とする請求項7〜10のいずれか一つに記載の超音波手術システム。
- 前記第1の制御手段は、前記プローブ識別情報と前記振動子識別情報とをもとに、前記プローブと前記ハンドピースとの組み合わせが前記超音波振動子の駆動制御が可能な組み合わせか否かを判定することを特徴とする請求項7〜11のいずれか一つに記載の超音波手術システム。
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US7749240B2 (en) | 2010-07-06 |
JP2005066316A (ja) | 2005-03-17 |
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