JPH0795984A - Handpiece for surgical operation - Google Patents

Handpiece for surgical operation

Info

Publication number
JPH0795984A
JPH0795984A JP5242963A JP24296393A JPH0795984A JP H0795984 A JPH0795984 A JP H0795984A JP 5242963 A JP5242963 A JP 5242963A JP 24296393 A JP24296393 A JP 24296393A JP H0795984 A JPH0795984 A JP H0795984A
Authority
JP
Japan
Prior art keywords
tip
cover
electrode
ultrasonic vibration
surgical handpiece
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP5242963A
Other languages
Japanese (ja)
Inventor
Shinetsu Harada
新悦 原田
Morihito Idemoto
守人 出本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Bakelite Co Ltd
Original Assignee
Sumitomo Bakelite Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo Bakelite Co Ltd filed Critical Sumitomo Bakelite Co Ltd
Priority to JP5242963A priority Critical patent/JPH0795984A/en
Publication of JPH0795984A publication Critical patent/JPH0795984A/en
Pending legal-status Critical Current

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  • Surgical Instruments (AREA)

Abstract

PURPOSE:To prevent the damage of an ultrasonic vibration transmission part by separately providing a connection wire not directly supplying a high frequency current to the ultrasonic vibration transmission part but supplying the same to the electrode of a tip part becoming an electric knife part. CONSTITUTION:An ultrasonic vibrator 1, a joint part 2 and a tip part 3 are received in and covered with a protective cover consisting of a main body cover 8 and a tip cover 13. The tip part 3 can be received in the tip cover 13 so that the tip working part 5 thereof protrudes from the leading end of the tip cover and a high frequency current is supplied to the electrode 12 provided to the leading end of the tip cover through the connection wire embedded in the side wall of the tip cover.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、超音波振動により生体
組織を破砕、除去するとともに、高周波電流により生体
組織の切開、凝固又は混合を行う、特に内視鏡下外科手
術に適した外科手術用ハンドピースに関するものであ
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surgical operation particularly suitable for endoscopic surgery, in which the living tissue is crushed and removed by ultrasonic vibration and the living tissue is dissected, coagulated or mixed by a high frequency current. For handpieces for use.

【0002】[0002]

【従来の技術】従来、超音波振動伝達体に高周波電流を
通電する構成のもの(例えば実公昭60−33925号
公報、実公昭60−33926号公報)が知られている
が、この構成のものは超音波振動伝達体を電気メスの電
極として使用しているため、超音波振動及び高周波電流
という2種類の負荷が超音波振動伝達体に加わり、超音
波振動伝達体の寿命を短くし、金属疲労による破損の危
険性を伴うという欠点と、超音波振動伝達体に高周波電
流を通電しているため、超音波振動子との接合部に絶縁
板を配置しても、表皮電流により超音波振動子に電流が
流れてしまうという欠点があった。
2. Description of the Related Art Heretofore, there have been known structures in which a high-frequency current is passed through an ultrasonic vibration transmitter (for example, Japanese Utility Model Publication No. 60-33925 and Japanese Utility Model Publication No. 60-33926). Uses an ultrasonic vibration transmitter as an electrode of an electrosurgical knife, two types of loads, ultrasonic vibration and high-frequency current, are applied to the ultrasonic vibration transmitter, shortening the life of the ultrasonic vibration transmitter, and Even if an insulating plate is placed at the joint with the ultrasonic vibrator, ultrasonic vibration is generated by the skin current because the ultrasonic vibration transmitter carries a high-frequency current. There was a drawback that current flowed to the child.

【0003】また、超音波振動伝達体と電気メスの電極
をそれぞれ別個に突出させている構成のもの(例えば実
公昭61−36253号公報)が知られているが、この
構成のものは、超音波振動伝達体と電気メスの電極を覆
う保護カバーが必要なため、保護カバーの寸法が大きく
なり、使用時に術者の視野を奪うと共に、内視鏡を用い
た手術の場合、患者に対する侵襲の度合いが大きくなる
という欠点があった。
Further, there is known a structure (for example, Japanese Utility Model Publication No. 61-36253) in which the electrodes of the ultrasonic vibration transmitter and the electric knife are separately projected. Since a protective cover for covering the ultrasonic vibration transmitter and the electrode of the electrosurgical unit is required, the size of the protective cover becomes large, which steals the operator's field of view during use, and in the case of surgery using an endoscope, it does not invade the patient. There was a drawback that the degree became large.

【0004】[0004]

【発明が解決しようとする課題】本発明は、超音波振動
と高周波電流を併用できる従来の外科手術用ハンドピー
スのこのような問題点を解決することを目的としたもの
で、高周波電流による超音波振動伝達部の破損防止、及
び使用するトラカールの細径化をはかり、長時間安定し
た操作が可能な外科手術用ハンドピースを提供しようと
するものである。
SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems of the conventional surgical handpiece which can use both ultrasonic vibration and high frequency current. An object of the present invention is to provide a surgical handpiece capable of stable operation over a long period of time by preventing breakage of a sound wave vibration transmitting portion and reducing the diameter of a trocar used.

【0005】[0005]

【課題を解決するための手段】即ち本発明は、超音波振
動により生体組織の異物を破砕もしくは切断分離し除去
すると共に、高周波電流により生体組織の切開、凝固又
は混合を行うための外科手術用ハンドピースであって、
超音波振動源、該超音波振動源に接続され超音波周波数
の機械的振動を伝達拡大する振動体、高周波発生源、該
高周波発生源に接続され高周波電流を通電するための電
極、対極板、及び超音波振動源と振動体とを収納被覆す
る絶縁体の保護カバーから構成されており、該保護カバ
ーは、その先端より振動体の先端作業部を突出、収納可
能で、且つ前記振動体の軸を中心にして回軸可能に取り
付けられていることを特徴とする外科手術用ハンドピー
スである。
That is, the present invention is for surgical operation for crushing or cutting and separating foreign matter of living tissue by ultrasonic vibration and for cutting, coagulating or mixing living tissue by high-frequency current. A handpiece,
An ultrasonic vibration source, a vibrating body connected to the ultrasonic vibration source and transmitting and expanding mechanical vibrations at ultrasonic frequencies, a high frequency source, an electrode connected to the high frequency source for supplying a high frequency current, a counter electrode, And an ultrasonic protective cover for accommodating and covering the ultrasonic vibration source and the vibrating body, the protective cover being capable of projecting and accommodating the tip working portion of the vibrating body from the tip thereof, and A surgical handpiece characterized by being attached so as to be rotatable about an axis.

【0006】更には、振動体がジョイント部とチップ部
とで構成され、保護カバーが、超音波振動源とジョイン
ト部の一部とを収納する本体カバーと、チップ部とジョ
イント部の一部とを被覆するチップカバーとを組み合わ
せたものであって、高周波電流を通電させるための電極
が、チップカバー先端にその一部を突出して付設される
と共に、高周波発生源との接続線がチップカバーの側壁
内に埋設されており、チップカバー先端の電極が交換可
能に取り付けられており、その電極の形状が、へら状、
球状、もしくは鉤状に形成されていることを特徴とす
る。
Further, the vibrating body is composed of a joint portion and a tip portion, and a protective cover includes a main body cover for accommodating the ultrasonic vibration source and a part of the joint portion, a tip portion and a part of the joint portion. Which is a combination of a chip cover for coating a high frequency current, an electrode for energizing a high frequency current is attached to the tip of the chip cover by projecting a part of the electrode, and a connection line with a high frequency generation source of the chip cover. It is embedded in the side wall, the electrode at the tip of the tip cover is replaceably attached, and the shape of the electrode is a spatula shape,
It is characterized in that it is formed into a spherical shape or a hook shape.

【0007】以下、図面を参照して本発明を詳細に説明
する。図1は本発明の一実施例となる外科手術用ハンド
ピースの基本的な構造を説明するための図で、図2はチ
ップカバーの構造、図3は本発明による外科手術用ハン
ドピースを使用するシステムの全体を示す図である。
The present invention will be described in detail below with reference to the drawings. FIG. 1 is a view for explaining a basic structure of a surgical handpiece according to an embodiment of the present invention, FIG. 2 is a structure of a tip cover, and FIG. 3 is a surgical handpiece according to the present invention. It is a figure which shows the whole system which does.

【0008】超音波振動子(1)は、図1(a)に示す
ように、ジョイント部(2)と細径のチップ部(3)か
らなる振動体とネジ等の手段で接合され、これらの内部
には長さ方向に貫通した吸引通路(4)が設けられてい
る。そして、これらの超音波振動をする部材は、絶縁性
を有する耐熱樹脂製の保護カバーで収納被覆されてい
る。保護カバーは、図1(b)及び(c)に示したよう
に、超音波振動子(1)とジョイント部(2)の一部と
を収納する本体カバー(8)と、ジョイント部(2)の
先端部分とチップ部(3)とを覆うチップカバー(1
3)との組み合わせで構成されている。
As shown in FIG. 1 (a), the ultrasonic transducer (1) is joined with a vibrating body composed of a joint portion (2) and a small-diameter tip portion (3) by a means such as a screw. A suction passageway (4) is provided in the inside of the casing so as to penetrate therethrough in the lengthwise direction. These members that vibrate ultrasonically are housed and covered with a protective cover made of a heat-resistant resin having an insulating property. As shown in FIGS. 1B and 1C, the protective cover includes a main body cover (8) for accommodating the ultrasonic transducer (1) and a part of the joint part (2), and a joint part (2). ) And a tip cover (1) covering the tip portion (3).
3) and the combination.

【0009】チップカバー(13)は、図2に示すよう
に、チップ部(3)を挿通するため内腔(14)と、そ
の側壁内に埋設され高周波電流を通電するための接続線
(15)を有する。内腔(14)にチップ部(3)を挿
通したとき両者の間に生ずる環状の空間は、生理食塩水
等のイリゲーション液を供給するための通路として利用
され、チップカバー(13)の後端部近傍にはイリゲー
ション液の入口となるイリゲーションニップル(11)
と、高周波電源(23)と接続線(15)とを接続する
ためのコネクター(10)が設けられている。また、チ
ップカバー(13)の先端には、図2に示したように、
着脱可能な別部品として形成され、電気メス部となる電
極(12)を有する。
As shown in FIG. 2, the tip cover (13) has an inner cavity (14) through which the tip portion (3) is inserted, and a connecting wire (15) embedded in the side wall thereof for conducting a high frequency current. ) Has. An annular space formed between the tip portion (3) and the tip portion (3) when the tip portion (3) is inserted into the lumen (14) is used as a passage for supplying an irrigation liquid such as physiological saline, and is provided at the rear end of the tip cover (13). An irrigation nipple (11) serving as an inlet for irrigation liquid near the part
And a connector (10) for connecting the high frequency power supply (23) and the connecting wire (15). At the tip of the tip cover (13), as shown in FIG.
It has an electrode (12) which is formed as a detachable separate component and serves as an electric knife portion.

【0010】チップカバー(13)は、本体カバー
(8)に嵌め込み装着されており、図2に示すように、
振動体の振動の節部に対応する位置のチップカバー(1
3)の内面に設けられた突起部(16)との接触によっ
て保持されると共に、振動体の軸を中心にして回転でき
るようになっている。また更に、チップ部(3)先端の
作業部(5)を突出、収納可能にするため、本体カバー
(8)との嵌め込み部において、本体カバー先端部のノ
ッチ(27)とチップカバー後部内面に設けた2つの溝
部(28)とにより長さ方向の位置を確認し、前後に移
動できるようになっている。
The chip cover (13) is fitted and attached to the main body cover (8), and as shown in FIG.
Tip cover at the position corresponding to the node of vibration of the vibrating body (1
It is held by contact with a protrusion (16) provided on the inner surface of (3) and can rotate about the axis of the vibrating body. Furthermore, in order to allow the working portion (5) at the tip of the tip portion (3) to project and be housed, the notch (27) at the tip portion of the body cover and the inner surface of the rear portion of the tip cover at the fitting portion with the body cover (8). With the two groove portions (28) provided, the position in the lengthwise direction can be confirmed and it can be moved back and forth.

【0011】本発明による外科手術用ハンドピースの使
用方法は、図3に示すように、超音波発振器(25)か
らハンドピース(17)内の超音波振動子(1)へ共振
周波数の高周波電力を供給し、そこで超音波振動を発生
させ、ジョイント部(2)及びチップ部(3)を組合せ
た振動体にて超音波振動を伝達拡大させ、チップ部
(3)先端の作業部(5)で生体組織等の破砕作業を行
う方法と、高周波発振器(23)からチップカバー(1
3)内の接続線(15)へ高周波電流を供給し、先端メ
ス部となる電極(12)にて生体組織等の切開、凝固を
行う方法がある。
As shown in FIG. 3, the method of using the surgical handpiece according to the present invention is as follows: From the ultrasonic oscillator (25) to the ultrasonic transducer (1) in the handpiece (17), the high frequency power of the resonance frequency is used. Is supplied there, ultrasonic vibration is generated there, and the ultrasonic vibration is transmitted and expanded by a vibrating body that combines the joint portion (2) and the tip portion (3), and the working portion (5) at the tip of the tip portion (3) A method of crushing living tissue with a high frequency oscillator (23) and a chip cover (1
There is a method in which a high-frequency current is supplied to the connecting wire (15) in 3) to incise and coagulate a biological tissue or the like at the electrode (12) serving as a distal female portion.

【0012】超音波手術器として使用する場合は、まず
チップカバー(13)の先端より、チップ部(3)先端
の作業部(5)を突出させておき、振動開始と同時にロ
ーラーポンプ(20)を作動させ、ボトル(18)から
イリゲーションチューブ(19)、イリゲーションニッ
プル(11)を通ってチップカバー(13)内にイリゲ
ーションを注入する。イリゲーション液は内腔(14)
の内壁とチップ部(3)間の環状通路を通り、チップカ
バー(13)の先端部より作業部(5)に向けて、超音
波振動によって噴出される。このイリゲーション液と作
業部(5)の超音波振動によって生体組織等が破砕、乳
化される。乳化された破砕片は、吸引ポンプ(20)の
吸引圧力でチップ部(3)、ジョイント部(2)、超音
波振動子(1)の内部の吸引通路(4)を経て、吸引ニ
ップル(7)、吸引チューブ(26)を通り、吸引びん
(24)に集められる。
When used as an ultrasonic surgical instrument, first, the working portion (5) at the tip of the tip portion (3) is projected from the tip of the tip cover (13) and the roller pump (20) is started simultaneously with the start of vibration. Is operated to inject irrigation into the tip cover (13) from the bottle (18) through the irrigation tube (19) and the irrigation nipple (11). Irrigation fluid is lumen (14)
Through the annular passage between the inner wall of the chip and the tip portion (3), and is jetted by ultrasonic vibration from the tip of the tip cover (13) toward the working portion (5). The irrigation liquid and ultrasonic vibration of the working unit (5) crush and emulsify the living tissue. The emulsified crushed pieces pass through the tip portion (3), the joint portion (2), and the suction passageway (4) inside the ultrasonic transducer (1) by the suction pressure of the suction pump (20), and then the suction nipple (7). ), Through a suction tube (26) and collected in a suction bottle (24).

【0013】また、電気手術器として使用する場合は、
チップ部(3)先端の作業部(5)をチップカバー(1
3)内に収納し、術部を挟んで対極板(22)を対置さ
せ、高周波発生器(23)からコネクター(10)、接
続線(15)を通じて電極(12)へ高周波電流を供給
し、電極(12)にて生体組織等の切開、凝固を行な
う。このとき発生する煙は、超音波手術器として使用す
るときと同様に吸引方法を用いて体外に排出できるの
で、煙による視野妨害を軽減できる。
When used as an electrosurgical instrument,
Attach the tip cover (1) to the working section (5) at the tip of the tip section (3).
3), the counter electrode plate (22) is placed oppositely across the surgical site, and a high frequency current is supplied from the high frequency generator (23) to the electrode (12) through the connector (10) and the connecting wire (15), The tissue (12) is incised and coagulated by the electrode (12). The smoke generated at this time can be discharged to the outside of the body by using the suction method as in the case of using as an ultrasonic surgical instrument, so that the obstruction of the visual field due to the smoke can be reduced.

【0014】また、安全機構として、超音波発振器(2
5)と高周波発生器(23)とが同時に作動して漏れ電
流等による事故を発生しないように、内部回路にて同時
に作動しない構造になっている。
As a safety mechanism, an ultrasonic oscillator (2
5) and the high frequency generator (23) are simultaneously operated so that an accident due to a leakage current or the like does not occur and the internal circuit does not simultaneously operate.

【0015】[0015]

【発明の効果】本発明に従うと、超音波振動伝達部と高
周波電流通電部が異なるため、従来の装置の欠陥であ
る、高周波電流による超音波振動伝達部の破損の危険が
取り除かれるため超音波振動するチップを細径化でき、
また超音波メスと電気メスが同時に作動することによる
事故も防止できて、超音波メスと電気メスの機能を合わ
せ持ち、且つ長時間安定した操作が可能な外科手術用ハ
ンドピースとして有用である。
According to the present invention, since the ultrasonic vibration transmitting part and the high frequency current carrying part are different from each other, the risk of damage to the ultrasonic vibration transmitting part due to the high frequency current, which is a defect of the conventional device, is eliminated. The vibrating tip can be made smaller,
Further, it is possible to prevent an accident caused by simultaneous operation of the ultrasonic knife and the electric knife, and it is useful as a surgical handpiece having both the functions of the ultrasonic knife and the electric knife and capable of stable operation for a long time.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の一実施例となる外科手術用ハンドピー
スの基本的な構造を示す図で、(a)は超音波振動源と
振動体を接続した断面図、(b)は本体カバーを装着し
た側面図、(c)は本体カバーとチップカバーを装着し
た側面図である。
FIG. 1 is a view showing a basic structure of a surgical handpiece according to an embodiment of the present invention, (a) is a cross-sectional view in which an ultrasonic vibration source and a vibrating body are connected, and (b) is a main body cover. Is a side view with the main body cover and the chip cover attached.

【図2】本発明におけるチップカバーの構造の一例を示
す断面図である。
FIG. 2 is a sectional view showing an example of the structure of a chip cover according to the present invention.

【図3】本発明による外科手術用ハンドピースを使用す
るシステムの全体を示す図である。
FIG. 3 shows an overall system using a surgical handpiece according to the present invention.

【符号の説明】[Explanation of symbols]

1 超音波振動子 2 ジョイント部 3 チップ部 4 吸引通路 5 作業部 8 本体カバー 10 コネクター 11 イリゲーションニップル 12 電極 13 チップカバー 14 内腔 15 接続線 16 突起部 22 対極板 23 高周波発生器 25 超音波発振器 27 ノッチ 28 溝部 DESCRIPTION OF SYMBOLS 1 Ultrasonic transducer 2 Joint part 3 Tip part 4 Suction passage 5 Working part 8 Main body cover 10 Connector 11 Irrigation nipple 12 Electrode 13 Chip cover 14 Lumen 15 Connection line 16 Projection part 22 Counter electrode plate 23 High frequency generator 25 Ultrasonic oscillator 27 Notch 28 Groove

Claims (6)

【特許請求の範囲】[Claims] 【請求項1】 超音波振動により生体組織の異物を破砕
もしくは切断分離し除去すると共に、高周波電流により
生体組織の切開、凝固又は混合を行うための外科手術用
ハンドピースであって、超音波振動源、該超音波振動源
に接続され超音波周波数の機械的振動を伝達拡大する振
動体、高周波発生源、該高周波発生源に接続され高周波
電流を通電するための電極、対極板、及び超音波振動源
と振動体とを収納被覆する絶縁体の保護カバーから構成
されており、該保護カバーは、その先端より振動体の先
端作業部を突出、収納可能で、且つ前記振動体の軸を中
心にして回軸可能に取り付けられていることを特徴とす
る外科手術用ハンドピース。
1. A surgical handpiece for crushing or cutting and separating foreign matter of living tissue by ultrasonic vibration and removing it, and for incising, coagulating or mixing the living tissue by high-frequency current. Source, a vibrating body connected to the ultrasonic vibration source and transmitting and expanding mechanical vibrations at ultrasonic frequencies, a high-frequency generation source, an electrode connected to the high-frequency generation source for conducting a high-frequency current, a counter electrode, and an ultrasonic wave It is composed of a protective cover of an insulator for accommodating and covering the vibration source and the vibrating body, the protective cover being capable of projecting and accommodating the tip working portion of the vibrating body from its tip, and centering on the axis of the vibrating body. A surgical handpiece characterized by being attached so as to be rotatable.
【請求項2】 振動体が、ジョイント部とチップ部とか
らなることを特徴とする、請求項(1)記載の外科手術
用ハンドピース。
2. The surgical handpiece according to claim 1, wherein the vibrating body comprises a joint portion and a tip portion.
【請求項3】 保護カバーが、超音波振動源とジョイン
ト部の一部とを収納する本体カバーと、チップ部とジョ
イント部の一部とを被覆するチップカバーとを組み合わ
せてなることを特徴とする、請求項(2)記載の外科手
術用ハンドピース。
3. The protective cover is a combination of a main body cover that houses the ultrasonic vibration source and a part of the joint part, and a tip cover that covers the tip part and a part of the joint part. The surgical handpiece according to claim (2).
【請求項4】 高周波電流を通電させるための電極が、
チップカバー先端にその一部を突出して付設されると共
に、高周波発生源との接続線がチップカバーの側壁内に
埋設されていることを特徴とする、請求項(3)記載の
外科手術用ハンドピース。
4. An electrode for passing a high frequency current,
The surgical hand according to claim 3, wherein a part of the tip cover is attached to the tip end of the tip cover so as to project therefrom, and a connection line to a high-frequency generation source is embedded in the side wall of the tip cover. piece.
【請求項5】 チップカバー先端の電極が、交換可能に
取り付けられていることを特徴とする、請求項(4)記
載の外科手術用ハンドピース。
5. The surgical handpiece according to claim 4, wherein the electrode at the tip of the tip cover is replaceably attached.
【請求項6】 電極の形状が、へら状、球状、もしくは
鉤状に形成されていることを特徴とする、請求項(5)
記載の外科手術用ハンドピース。
6. The electrode according to claim 5, wherein the electrode is formed into a spatula shape, a spherical shape, or a hook shape.
The surgical handpiece described.
JP5242963A 1993-09-29 1993-09-29 Handpiece for surgical operation Pending JPH0795984A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5242963A JPH0795984A (en) 1993-09-29 1993-09-29 Handpiece for surgical operation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5242963A JPH0795984A (en) 1993-09-29 1993-09-29 Handpiece for surgical operation

Publications (1)

Publication Number Publication Date
JPH0795984A true JPH0795984A (en) 1995-04-11

Family

ID=17096841

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5242963A Pending JPH0795984A (en) 1993-09-29 1993-09-29 Handpiece for surgical operation

Country Status (1)

Country Link
JP (1) JPH0795984A (en)

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