JPH0723968A - Ultrasonic treatment apparatus - Google Patents
Ultrasonic treatment apparatusInfo
- Publication number
- JPH0723968A JPH0723968A JP5169246A JP16924693A JPH0723968A JP H0723968 A JPH0723968 A JP H0723968A JP 5169246 A JP5169246 A JP 5169246A JP 16924693 A JP16924693 A JP 16924693A JP H0723968 A JPH0723968 A JP H0723968A
- Authority
- JP
- Japan
- Prior art keywords
- ultrasonic
- tip
- distance
- receiving
- vibration
- 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.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は外科手術、もしくは内視
鏡下外科手術の際に血管の止血等に使用される超音波処
置装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ultrasonic treatment device used for hemostasis of blood vessels during surgery or endoscopic surgery.
【０００２】[0002]
【従来の技術】従来から血管の止血等の外科的処置では
小型のクリップやステイプルを用いたクリップ装置もし
くは吻合装置が用いられている。例えば米国特許第４６
１６６５０号や第４６２４２５４号に示すようにクリッ
プアプリケータに複数の金属製クリップを内蔵し、クリ
ップアプリケータの先端に挟み込んだ管を一回の操作で
クリップするようにしたものが知られている。2. Description of the Related Art Conventionally, a clip device or an anastomosis device using small clips or staples has been used in surgical procedures such as hemostasis of blood vessels. For example, US Pat. No. 46
As disclosed in Japanese Patent No. 16650 and No. 4624254, it is known that a clip applicator has a plurality of metal clips built therein, and a pipe sandwiched at the tip of the clip applicator is clipped by a single operation.
【０００３】これらのクリップ装置もしくは吻合装置で
は金属や合成樹脂製のクリップまたはステイプルが生体
内に残ってしまう問題がある。そこで、米国特許第３７
９４０４０号に示すように、超音波振動を利用すること
により、クリップまたはステイプルを使用することなく
血管の止血を行なう構成にした装置が開発されている。These clip devices or anastomotic devices have a problem that clips or staples made of metal or synthetic resin remain in the living body. Therefore, U.S. Pat. No. 37
As shown in Japanese Patent No. 94040, there has been developed a device configured to perform hemostasis of blood vessels by utilizing ultrasonic vibration without using clips or staples.
【０００４】この超音波振動を用いた止血装置では出血
した血管の出血部位に超音波振動している工具の作用面
を当てて加圧し、血管の出血部位を局部的に加熱するこ
とにより、この血管の出血部位を塞ぎ、止血するように
なっている。In this hemostatic device using ultrasonic vibration, the action surface of the ultrasonically vibrating tool is applied to the bleeding site of the bleeding blood vessel to apply pressure to locally heat the bleeding site of the blood vessel. It is designed to block the bleeding site of blood vessels and stop bleeding.
【０００５】[0005]
【発明が解決しようとする課題】上記構成のものにあっ
ては工具の作用面に伝達される超音波振動の振幅、周波
数、工具を血管の出血部位に押し当てる際の加圧力の力
量、および超音波振動の印加時間等の条件に応じて変化
する。しかしながら、従来構成のものにあっては作業者
の手操作によって上記各パラメータを設定し、調整して
いたので、上記パラメータを適正に制御して安定に血管
の止血作業を行なうことは難しい問題がある。With the above-mentioned structure, the amplitude and frequency of the ultrasonic vibration transmitted to the working surface of the tool, the amount of force applied when the tool is pressed against the bleeding site of the blood vessel, and It changes according to conditions such as the application time of ultrasonic vibration. However, in the case of the conventional configuration, the above-mentioned parameters are set and adjusted manually by the operator, so it is difficult to appropriately control the above-mentioned parameters and stably perform hemostasis of blood vessels. is there.
【０００６】本発明は上記事情に着目してなされたもの
で、その目的は、超音波振動の印加時のパラメータを適
正に制御し、安定に血管の止血作業等を行なうことがで
きる超音波処置装置を提供することにある。The present invention has been made in view of the above circumstances, and an object thereof is an ultrasonic treatment capable of appropriately controlling parameters at the time of applying ultrasonic vibration and stably performing hemostasis of blood vessels. To provide a device.
【０００７】[0007]
【課題を解決するための手段】本発明は体内に挿入され
る挿入部の先端部に生体組織を挾持する挾持手段が設け
られ、超音波振動を発生する超音波振動子からの超音波
振動が振動伝達部材を介して前記挾持手段に伝達されて
前記挾持手段に挾持されている生体組織が接合される超
音波処置装置において、離間対向配置された前記挾持手
段の一対の挾持要素間の距離を検出する距離検出手段を
設けるとともに、この距離検出手段からの検出データに
もとづいて前記超音波振動子の超音波出力を制御する超
音波出力制御手段を設けたものである。According to the present invention, a holding means for holding a living tissue is provided at the tip of an insertion portion to be inserted into the body, and ultrasonic vibration from an ultrasonic transducer for generating ultrasonic vibration is generated. In an ultrasonic treatment device in which a living tissue that is transmitted to the holding means via a vibration transmission member and held by the holding means is joined, a distance between a pair of holding elements of the holding means that are spaced and opposed to each other is set. The distance detecting means for detecting is provided, and the ultrasonic output control means for controlling the ultrasonic output of the ultrasonic transducer is provided based on the detection data from the distance detecting means.
【０００８】[0008]
【作用】血管の止血作業等の作業時には離間対向配置さ
れた挾持手段の一対の挾持要素間の距離を距離検出手段
によって検出するとともに、この距離検出手段からの検
出データにもとづいて超音波出力制御手段によって超音
波振動子の超音波出力を制御するようにしたものであ
る。When a work such as blood vessel hemostasis work is performed, the distance between the pair of holding elements of the holding means, which are spaced apart and opposed to each other, is detected by the distance detecting means, and ultrasonic output control is performed based on the detection data from the distance detecting means. The means controls the ultrasonic output of the ultrasonic transducer.
【０００９】[0009]
【実施例】以下、本発明の第１の実施例を図１（Ａ）乃
至図２（Ｂ）を参照して説明する。図１（Ｂ）は超音波
処置装置の概略構成を示すものである。図１（Ｂ）中
で、１は超音波処置装置の本体である。この超音波処置
装置本体１には体内に挿入される挿入部２とこの挿入部
２の基端部に連結された手元側の操作部３とが設けられ
ている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. 1 (A) to 2 (B). FIG. 1B shows a schematic configuration of the ultrasonic treatment device. In FIG. 1B, reference numeral 1 is a main body of the ultrasonic treatment device. The ultrasonic treatment apparatus main body 1 is provided with an insertion portion 2 to be inserted into the body and an operation portion 3 on the hand side connected to the proximal end portion of the insertion portion 2.
【００１０】また、操作部３にはグリップ部４と引き金
部５とが設けられている。ここで、グリップ部４は例え
ば、先端にホーンが設けられた、ボルト締めランジュバ
ン型のような超音波振動子６を収容する超音波振動子ケ
ース７に突設されている。Further, the operating portion 3 is provided with a grip portion 4 and a trigger portion 5. Here, the grip portion 4 is provided, for example, in a protruding manner on an ultrasonic transducer case 7 that houses an ultrasonic transducer 6 such as a bolted Langevin type having a horn at the tip.
【００１１】さらに、超音波振動子６のホーンの先端に
は振動伝達部材８の基端部が接続されている。この振動
伝達部材８の先端にはねじ穴が形成されており、このね
じ穴に任意の断面形状と先端の作用面形状を有する先端
チップ９がねじ込まれている。Further, the base end of the vibration transmitting member 8 is connected to the tip of the horn of the ultrasonic transducer 6. A screw hole is formed at the tip of the vibration transmitting member 8, and a tip chip 9 having an arbitrary cross-sectional shape and an action surface shape of the tip is screwed into the screw hole.
【００１２】また、挿入部２には振動伝達部材８を挿通
する管状のシース１０が設けられている。このシース１
０の先端部には略Ｌ字状の受け部材１１が連結されてい
る。この受け部材１１の先端部には先端チップ９の先端
の作用面と離間対向配置された受け部１１ａが形成され
ている。The insertion section 2 is provided with a tubular sheath 10 through which the vibration transmission member 8 is inserted. This sheath 1
A substantially L-shaped receiving member 11 is connected to the front end portion of 0. At the tip of the receiving member 11, a receiving portion 11a is formed, which is arranged so as to face the working surface of the tip of the tip 9 at a distance.
【００１３】さらに、シース１０の基端部にはケース７
に対して挿入部２の軸心方向に沿ってスライド自在に装
着されたスライド部材１２が接続固定されている。この
スライド部材１２には引き金部５が突設されている。そ
して、グリップ部４と引き金部５との間の接離動作にと
もないシース１０を介して受け部材１１の受け部１１ａ
が先端チップ９に対して挿入部２の軸心方向に沿って前
後に進退操作されるようになっており、これらの受け部
材１１の受け部１１ａと先端チップ９とによって生体組
織を挾持する挾持部（挾持手段）１３が形成されてい
る。Further, a case 7 is attached to the proximal end of the sheath 10.
On the other hand, the slide member 12 mounted so as to be slidable along the axial direction of the insertion portion 2 is connected and fixed. A trigger portion 5 is provided on the slide member 12 so as to project therefrom. Then, the receiving portion 11a of the receiving member 11 is inserted through the sheath 10 along with the contact / separation operation between the grip portion 4 and the trigger portion 5.
Is operated to move back and forth with respect to the distal tip 9 along the axial direction of the insertion portion 2, and the holding portion 11a of the receiving member 11 and the distal tip 9 sandwich the living tissue. A part (holding means) 13 is formed.
【００１４】また、超音波振動子６には超音波振動子駆
動回路が接続されている。この超音波振動子駆動回路に
は図１（Ａ）に示すようにアンプ１４、電圧制御増幅器
１５、電圧制御発振器１６が設けられている。An ultrasonic oscillator drive circuit is connected to the ultrasonic oscillator 6. This ultrasonic transducer drive circuit is provided with an amplifier 14, a voltage control amplifier 15, and a voltage control oscillator 16 as shown in FIG.
【００１５】さらに、受け部材１１の受け部１１ａの外
面には受信用圧電素子（距離検出手段）１７が装着され
ている。この受信用圧電素子１７は受信器（超音波出力
制御手段）１８に接続されている。この受信器１８は超
音波振動子駆動回路の電圧制御増幅器１５に接続されて
いる。そして、この受信器１８からの出力信号に応じて
受信用圧電素子１７からの検出データにもとづいて超音
波振動子６の超音波出力が制御されるようになってい
る。Further, a receiving piezoelectric element (distance detecting means) 17 is mounted on the outer surface of the receiving portion 11a of the receiving member 11. The receiving piezoelectric element 17 is connected to a receiver (ultrasonic wave output control means) 18. The receiver 18 is connected to the voltage controlled amplifier 15 of the ultrasonic transducer drive circuit. Then, the ultrasonic output of the ultrasonic transducer 6 is controlled based on the detection data from the receiving piezoelectric element 17 according to the output signal from the receiver 18.
【００１６】次に、上記構成の作用について説明する。
まず、超音波処置装置本体１を使用して例えば、血管の
止血等の処置を行なう場合には処置対象の血管に挿入部
２の先端の挾持部１３を接近させ、挾持部１３における
受け部材１１の受け部１１ａと先端チップ９との間に処
置対象の血管を挿入させる。この状態で、手元側の操作
部３の引き金部５を引き、この引き金部５の操作によ
り、スライド部材１２をケース７のグリップ部４側にス
ライドさせる。Next, the operation of the above configuration will be described.
First, for example, when a treatment such as hemostasis of a blood vessel is performed using the ultrasonic treatment apparatus main body 1, the holding portion 13 at the tip of the insertion portion 2 is brought close to the blood vessel to be treated, and the receiving member 11 in the holding portion 13 is provided. A blood vessel to be treated is inserted between the receiving portion 11a of the sheet and the tip 9. In this state, the trigger portion 5 of the operating portion 3 on the hand side is pulled, and by operating the trigger portion 5, the slide member 12 is slid to the grip portion 4 side of the case 7.
【００１７】これにより、受け部材１１の受け部１１ａ
が先端チップ９の生体組織接合面１４側に引き寄せられ
るので、この受け部１１ａの動作にともない処置対象組
織が先端チップ９と受け部材１１の受け部１１ａとの間
に挟み込まれる。Thus, the receiving portion 11a of the receiving member 11
Is drawn toward the biological tissue joining surface 14 side of the tip 9, so that the tissue to be treated is sandwiched between the tip 9 and the receiving portion 11a of the receiving member 11 with the operation of the receiving portion 11a.
【００１８】続いて、超音波振動子６を駆動する。この
超音波振動子６の駆動時には超音波振動子駆動回路から
出力される駆動信号により超音波振動子６が駆動され
る。さらに、超音波振動子６によって励振された超音波
振動によって振動伝達部材８が超音波振動されるととも
に、超音波振動子６によって励起された超音波振動がこ
の振動伝達部材８を介して先端チップ９に伝達され、こ
の先端チップ９が超音波振動される。Subsequently, the ultrasonic transducer 6 is driven. When driving the ultrasonic vibrator 6, the ultrasonic vibrator 6 is driven by a drive signal output from the ultrasonic vibrator drive circuit. Further, the vibration transmitting member 8 is ultrasonically vibrated by the ultrasonic vibration excited by the ultrasonic vibrator 6, and the ultrasonic vibration excited by the ultrasonic vibrator 6 is transmitted through the vibration transmitting member 8 to the tip chip. 9, and the tip 9 is ultrasonically vibrated.
【００１９】この超音波発振中、受け部材１１と先端チ
ップ９との間の処置対象組織を適当な押し付け圧力で挟
んだ状態を適当な時間維持することで、血管の出血部位
が局部的に加熱され、この血管の出血部位が塞がれて止
血される。During the ultrasonic oscillation, the bleeding site of the blood vessel is locally heated by maintaining the state in which the tissue to be treated between the receiving member 11 and the distal tip 9 is sandwiched by an appropriate pressing pressure for an appropriate time. Then, the bleeding site of this blood vessel is blocked and the bleeding is stopped.
【００２０】さらに、血管の止血作業中、受け部材１１
の受け部１１ａと先端チップ９との間の距離Ｓ1 に応じ
て受信用圧電素子１７で検出される信号は図２（Ａ）に
示すように変化する。この場合、受け部材１１の受け部
１１ａと先端チップ９との間の距離Ｓ1 が小さい状態で
は受信用圧電素子１７からの検出信号が大きくなり、距
離Ｓ1 が大きくなるにしたがって受信用圧電素子１７か
らの検出信号が徐々に小さくなる。Further, the receiving member 11 is used during the hemostasis of the blood vessel.
The signal detected by the receiving piezoelectric element 17 changes as shown in FIG. 2A in accordance with the distance S 1 between the receiving portion 11a of the sheet and the tip chip 9. In this case, when the distance S 1 between the receiving portion 11a of the receiving member 11 and the tip 9 is small, the detection signal from the receiving piezoelectric element 17 increases, and the receiving piezoelectric element increases as the distance S 1 increases. The detection signal from 17 gradually decreases.
【００２１】そして、この受信用圧電素子１７からの検
出信号は受信器１８に入力され、さらにこの受信器１８
からの出力信号にもとづいて電圧制御増幅器１５の増幅
率が制御される。この場合、受信用圧電素子１７からの
検出信号が大きい状態では電圧制御増幅器１５の増幅率
が低下され、受信用圧電素子１７からの検出信号が小さ
くなるにしたがって電圧制御増幅器１５の増幅率が徐々
に大きくなる。したがって、超音波振動子６からの超音
波出力は図２（Ｂ）に示すように受け部材１１の受け部
１１ａと先端チップ９との間の距離Ｓ1 が小さい状態で
は比較的低出力状態に制御され、距離Ｓ1 が大きくなる
にしたがって増加される。The detection signal from the receiving piezoelectric element 17 is input to the receiver 18, and the receiver 18 further receives the detection signal.
The amplification factor of the voltage controlled amplifier 15 is controlled based on the output signal from the. In this case, the amplification factor of the voltage control amplifier 15 is reduced when the detection signal from the reception piezoelectric element 17 is large, and the amplification factor of the voltage control amplifier 15 is gradually increased as the detection signal from the reception piezoelectric element 17 is reduced. Grows to. Therefore, as shown in FIG. 2B, the ultrasonic wave output from the ultrasonic transducer 6 is relatively low when the distance S 1 between the receiving portion 11a of the receiving member 11 and the tip 9 is small. It is controlled and increases as the distance S 1 increases.
【００２２】そこで、上記構成のものにあっては超音波
処置装置本体１における受け部材１１の受け部１１ａの
外面に受信用圧電素子１７を装着し、血管の止血作業等
の作業時にはこの受信用圧電素子１７からの検出信号に
応じて超音波振動子６からの超音波出力を制御するよう
にしたので、受け部材１１の受け部１１ａと先端チップ
９との間の距離Ｓ1 に応じて超音波出力を調整し、受け
部材１１の受け部１１ａと先端チップ９との間の距離Ｓ
1 が変化した場合でもその距離Ｓ1 に応じて適正な超音
波出力を超音波振動子６から出力させることができる。
そのため、受け部材１１の受け部１１ａと先端チップ９
との間の距離Ｓ1 に関係なく、常に一定の血管の加熱効
果を得ることができるので、安定に血管の止血作業等を
行なうことができる。Therefore, in the above-mentioned structure, the receiving piezoelectric element 17 is mounted on the outer surface of the receiving portion 11a of the receiving member 11 in the ultrasonic treatment apparatus main body 1, and the receiving piezoelectric element 17 is used for receiving blood vessels when hemostasis work is performed. Since the ultrasonic wave output from the ultrasonic transducer 6 is controlled according to the detection signal from the piezoelectric element 17, the ultrasonic wave is changed according to the distance S 1 between the receiving portion 11a of the receiving member 11 and the tip end 9. The sound wave output is adjusted and the distance S between the receiving portion 11a of the receiving member 11 and the tip 9 is adjusted.
Even when 1 changes, the ultrasonic transducer 6 can output a proper ultrasonic output according to the distance S 1 .
Therefore, the receiving portion 11a of the receiving member 11 and the tip 9
Since a constant heating effect on the blood vessel can be obtained regardless of the distance S 1 between the blood vessel and the blood vessel, it is possible to stably perform the hemostasis work on the blood vessel.
【００２３】また、図３および図４は本発明の第２の実
施例を示すものである。この実施例ではシース１０内に
レーザプローブ２１が配設されている。このレーザプロ
ーブ２１の先端部は振動伝達部材８の先端チップ９の先
端位置に合わせて位置決めされた状態で配置されてい
る。さらに、このレーザプローブ２１の基端部はレーザ
変位計２２に連結されている。そして、先端チップ９の
先端位置に対応するレーザプローブ２１の先端面位置と
受け部材１１の受け部１１ａとの間の距離Ｓ1 がレーザ
変位計２２によって計測されるようになっている。3 and 4 show a second embodiment of the present invention. In this embodiment, a laser probe 21 is arranged inside the sheath 10. The tip of the laser probe 21 is arranged in a state of being aligned with the tip position of the tip 9 of the vibration transmitting member 8. Further, the base end of the laser probe 21 is connected to the laser displacement meter 22. The distance S 1 between the tip surface position of the laser probe 21 corresponding to the tip position of the tip 9 and the receiving portion 11a of the receiving member 11 is measured by the laser displacement meter 22.
【００２４】また、レーザ変位計２２は超音波振動子駆
動回路の電圧制御増幅器１５に接続されている。そし
て、先端チップ９と受け部材１１の受け部１１ａとの間
の距離Ｓ1 の検出データにもとづいてレーザ変位計２２
からの出力信号に応じて超音波振動子６の超音波出力が
図４に示すように制御されるようになっている。Further, the laser displacement meter 22 is connected to the voltage control amplifier 15 of the ultrasonic transducer drive circuit. Then, based on the detection data of the distance S 1 between the tip 9 and the receiving portion 11a of the receiving member 11, the laser displacement meter 22
The ultrasonic output of the ultrasonic transducer 6 is controlled as shown in FIG. 4 according to the output signal from the.
【００２５】そこで、上記構成のものにあっては超音波
処置装置本体１のシース１０内にレーザプローブ２１を
配設し、このレーザプローブ２１の先端部を振動伝達部
材８の先端チップ９の先端位置に合わせて配置するとと
もに、このレーザプローブ２１の基端部をレーザ変位計
２２に連結し、先端チップ９と受け部材１１の受け部１
１ａとの間の距離Ｓ1 の検出データにもとづいてレーザ
変位計２２からの出力信号に応じて超音波振動子６の超
音波出力を図４に示すように制御するようにしたので、
この場合も第１の実施例と同様に受け部材１１の受け部
１１ａと先端チップ９との間の距離Ｓ1 に応じて超音波
出力を調整し、受け部材１１の受け部１１ａと先端チッ
プ９との間の距離Ｓ1 が変化した場合でもその距離Ｓ1
に応じて適正な超音波出力を超音波振動子６から出力さ
せることができる。そのため、受け部材１１の受け部１
１ａと先端チップ９との間の距離Ｓ1 に関係なく、常に
一定の血管の加熱効果を得ることができるので、安定に
血管の止血作業等を行なうことができる。Therefore, in the above-mentioned structure, the laser probe 21 is arranged in the sheath 10 of the ultrasonic treatment apparatus main body 1, and the tip of this laser probe 21 is the tip of the tip 9 of the vibration transmitting member 8. The laser probe 21 is arranged according to the position, and the base end portion of the laser probe 21 is connected to the laser displacement meter 22.
Since the ultrasonic output of the ultrasonic transducer 6 is controlled as shown in FIG. 4 according to the output signal from the laser displacement meter 22 on the basis of the detection data of the distance S 1 from 1a,
Also in this case, the ultrasonic output is adjusted according to the distance S 1 between the receiving portion 11a of the receiving member 11 and the tip 9 as in the first embodiment, and the receiving portion 11a of the receiving member 11 and the tip 9 are adjusted. that distance S 1 even if the distance S 1 is varied between
The appropriate ultrasonic wave output can be output from the ultrasonic vibrator 6 in accordance with the above. Therefore, the receiving portion 1 of the receiving member 11
Regardless of the distance S 1 between the tip 1a and the distal tip 9, a constant blood vessel heating effect can be obtained, so that stable hemostasis of blood vessels can be performed.
【００２６】また、図５（Ａ）〜（Ｃ）は本発明の第３
の実施例を示すものである。これは、第１の実施例の受
信器１８を電圧制御発振器１６に接続し、この受信器１
８からの出力信号にもとづいて電圧制御発振器１６の発
振周波数を制御するようにしたものである。Further, FIGS. 5A to 5C show the third embodiment of the present invention.
FIG. This connects the receiver 18 of the first embodiment to the voltage controlled oscillator 16,
The oscillating frequency of the voltage controlled oscillator 16 is controlled based on the output signal from 8.
【００２７】ここで、受け部材１１の受け部１１ａと先
端チップ９との間の距離Ｓ1 に応じて受信用圧電素子１
７で検出される信号は図５（Ｂ）に示すように変化す
る。この場合、受け部材１１の受け部１１ａと先端チッ
プ９との間の距離Ｓ1 が小さい状態では受信用圧電素子
１７からの検出信号が大きくなり、距離Ｓ1 が大きくな
るにしたがって受信用圧電素子１７からの検出信号が徐
々に小さくなる。Here, according to the distance S 1 between the receiving portion 11a of the receiving member 11 and the tip 9, the receiving piezoelectric element 1
The signal detected at 7 changes as shown in FIG. In this case, when the distance S 1 between the receiving portion 11a of the receiving member 11 and the tip 9 is small, the detection signal from the receiving piezoelectric element 17 increases, and the receiving piezoelectric element increases as the distance S 1 increases. The detection signal from 17 gradually decreases.
【００２８】そして、この受信用圧電素子１７からの検
出信号は受信器１８に入力され、さらにこの受信器１８
からの出力信号にもとづいて電圧制御発振器１６の発振
周波数が制御される。この場合、受信用圧電素子１７か
らの検出信号が大きい状態、すなわち受け部材１１の受
け部１１ａと先端チップ９との間の距離Ｓ1 が小さい状
態では図５（Ｃ）に示すように電圧制御発振器１６の発
振周波数が上昇され、受信用圧電素子１７からの検出信
号が小さくなる、すなわち受け部材１１の受け部１１ａ
と先端チップ９との間の距離Ｓ1 が大きくなるにしたが
って電圧制御発振器１６の発振周波数が徐々に下降され
る。The detection signal from the receiving piezoelectric element 17 is input to the receiver 18, and the receiver 18 further receives the detection signal.
The oscillation frequency of the voltage controlled oscillator 16 is controlled based on the output signal from the. In this case, when the detection signal from the receiving piezoelectric element 17 is large, that is, when the distance S 1 between the receiving portion 11a of the receiving member 11 and the tip 9 is small, voltage control is performed as shown in FIG. The oscillation frequency of the oscillator 16 is increased and the detection signal from the receiving piezoelectric element 17 is decreased, that is, the receiving portion 11a of the receiving member 11 is received.
The oscillation frequency of the voltage controlled oscillator 16 is gradually lowered as the distance S 1 between the tip and the tip 9 increases.
【００２９】したがって、超音波振動子６からの超音波
の出力周波数は受け部材１１の受け部１１ａと先端チッ
プ９との間の距離Ｓ1 が小さい状態では発振周波数が高
くなり、受け部材１１の受け部１１ａと先端チップ９と
の間の距離Ｓ1 が大きくなるにしたがって超音波振動子
６からの超音波の出力周波数が低下するので、受け部材
１１の受け部１１ａと先端チップ９との間の距離Ｓ1 が
小さい状態でも生体組織が穿孔しにくくなり、安全性を
高めることができる。Therefore, the output frequency of the ultrasonic wave from the ultrasonic transducer 6 becomes high when the distance S 1 between the receiving portion 11a of the receiving member 11 and the tip 9 is small, and the output frequency of the receiving member 11 increases. As the distance S 1 between the receiving portion 11a and the tip 9 increases, the output frequency of the ultrasonic wave from the ultrasonic transducer 6 decreases, so that the distance between the receiving portion 11a of the receiving member 11 and the tip 9 increases. Even when the distance S 1 is small, it becomes difficult for the biological tissue to perforate, and safety can be improved.
【００３０】また、図６（Ａ）は本発明の第４の実施例
を示すものである。これは、超音波処置装置本体１の振
動伝達部材８の外周面にリング状のＯリング装着溝３１
を形成し、このＯリング装着溝３１にＯリング３２を装
着してこのＯリング３２によってシース１０と振動伝達
部材８との間を気密にシールするようにしたものであ
る。この場合、Ｏリング装着溝３１は振動伝達部材８に
おける振動の節となる位置に配置されている。FIG. 6A shows the fourth embodiment of the present invention. This is a ring-shaped O-ring mounting groove 31 on the outer peripheral surface of the vibration transmission member 8 of the ultrasonic treatment apparatus body 1.
And the O-ring 32 is mounted in the O-ring mounting groove 31, and the O-ring 32 hermetically seals between the sheath 10 and the vibration transmitting member 8. In this case, the O-ring mounting groove 31 is arranged at a position serving as a node of vibration in the vibration transmitting member 8.
【００３１】そこで、上記構成のものにあってはＯリン
グ３２によってシース１０と振動伝達部材８との間を気
密にシールすることができるので、患者の腹腔内を気腹
させた状態で患者の腹壁内に例えばトラカールを穿刺さ
せ、このトラカールの内腔内に超音波処置装置本体１の
挿入部２を挿入した際に、シース１０と振動伝達部材８
との間から患者の体内の気腹ガスが漏洩することを防止
することができる。Therefore, in the above-described structure, the O-ring 32 can hermetically seal between the sheath 10 and the vibration transmitting member 8, so that the patient's abdominal cavity is inflated. For example, when a trocar is punctured in the abdominal wall and the insertion portion 2 of the ultrasonic treatment apparatus main body 1 is inserted into the lumen of the trocar, the sheath 10 and the vibration transmission member 8
It is possible to prevent the pneumoperitoneum gas in the patient's body from leaking from between.
【００３２】なお、図６（Ｂ）に示すようにシース１０
の内周面にリング状のＯリング受部材４１を装着し、こ
のＯリング受部材４１の内周面のＯリング装着溝４２に
Ｏリング４３を装着してこのＯリング４３によってシー
ス１０と振動伝達部材８との間を気密にシールする構成
にしてもよい。As shown in FIG. 6B, the sheath 10
The ring-shaped O-ring receiving member 41 is attached to the inner peripheral surface of the O-ring receiving member 41, the O-ring 43 is attached to the O-ring attaching groove 42 on the inner peripheral surface of the O-ring receiving member 41, and the O-ring 43 vibrates the sheath 10. A configuration may be employed in which the transmission member 8 and the transmission member 8 are hermetically sealed.
【００３３】また、図７は本発明の第５の実施例を示す
ものである。これは、超音波処置装置本体１のシース１
０をスライド部材１２に対して着脱可能に設けるととも
に、振動伝達部材８を前後に２分割された前後２組の振
動伝達部材構成体８Ａ，８Ｂを着脱可能に連結させて形
成したものである。この場合、シース１０の基端部には
スライド部材１２に対して着脱可能に連結される連結部
５１が形成されている。FIG. 7 shows a fifth embodiment of the present invention. This is the sheath 1 of the ultrasonic treatment apparatus main body 1.
0 is detachably attached to the slide member 12, and the vibration transmission member 8 is formed by detachably connecting two sets of front and rear vibration transmission member constituent bodies 8A and 8B. In this case, a coupling portion 51 that is detachably coupled to the slide member 12 is formed at the proximal end portion of the sheath 10.
【００３４】そこで、上記構成のものにあっては超音波
処置装置本体１を使用しない場合にはスライド部材１２
に対してシース１０を取り外すとともに、先端側の振動
伝達部材構成体８Ａを後端側の振動伝達部材構成体８Ｂ
から取り外すことにより、超音波処置装置本体１を消毒
し易くすることができる。なお、シース１０および先端
側の振動伝達部材構成体８Ａを使い捨て部品によって形
成する構成にしてもよい。Therefore, in the case of the above structure, the slide member 12 is used when the ultrasonic treatment apparatus body 1 is not used.
With the sheath 10 removed, the front end side vibration transmission member constituting body 8A is replaced with the rear end side vibration transmission member constituting body 8B.
The ultrasonic treatment apparatus main body 1 can be easily disinfected by removing the ultrasonic treatment apparatus main body 1. The sheath 10 and the vibration transmitting member constituting body 8A on the distal end side may be formed of disposable parts.
【００３５】また、図８は本発明の第６の実施例を示す
ものである。これは、シース１０を前後に２分割された
前後２組のシース構成体１０Ａ，１０Ｂによって形成す
るとともに、振動伝達部材８を前後に２分割された前後
２組の振動伝達部材構成体８Ａ，８Ｂによって形成し、
先端側のシース構成体１０Ａと振動伝達部材構成体８Ａ
とを一体的に組み付けて一体化した先端側着脱ユニット
を設けたものである。FIG. 8 shows a sixth embodiment of the present invention. This forms the sheath 10 by two sets of front and rear sheath structures 10A and 10B that are divided into two parts, and the vibration transmission member 8 is divided into two parts, that is, the front and rear sets of vibration transmission member structures 8A and 8B. Formed by
End-side sheath structure 10A and vibration transmitting member structure 8A
And a front end side attachment / detachment unit which is integrally assembled by integrating.
【００３６】この場合、後端側のシース構成体１０Ｂの
先端部には先端側のシース構成体１０Ａの連結穴６１が
形成されている。さらに、先端側のシース構成体１０Ａ
の後端部には連結穴６１内に挿入される円筒状の連結部
６２が形成され、この連結部６２の外周面にＯリング６
３が嵌着されている。In this case, a connecting hole 61 for the sheath structure 10A on the distal end side is formed at the distal end of the sheath structure 10B on the rear end side. Furthermore, the sheath structure 10A on the distal end side
A cylindrical connecting portion 62 to be inserted into the connecting hole 61 is formed at a rear end portion of the O-ring 6 on the outer peripheral surface of the connecting portion 62.
3 is fitted.
【００３７】また、先端側の振動伝達部材構成体８Ａの
後端部には後端側の振動伝達部材構成体８Ｂのテーパ状
連結穴６４が形成されている。さらに、後端側の振動伝
達部材構成体８Ｂの先端部には先端側の振動伝達部材構
成体８Ａのテーパ状連結穴６４内に挿入されるテーパ状
連結部６５が形成されている。なお、前後２組の振動伝
達部材構成体８Ａ，８Ｂは振動の腹の部分で分割されて
いる。Further, at the rear end portion of the vibration transmitting member constituting body 8A on the front end side, a tapered connecting hole 64 of the vibration transmitting member constituting body 8B on the rear end side is formed. Further, a tapered connecting portion 65 to be inserted into the tapered connecting hole 64 of the vibration transmitting member constituting body 8A on the front end side is formed at a tip end portion of the vibration transmitting member constituting body 8B on the rear end side. The two sets of front and rear vibration transmitting member structures 8A and 8B are divided at the antinode of vibration.
【００３８】また、先端側の振動伝達部材構成体８Ａの
後端部外周面にはリング状のばね受部６６が突設されて
いる。さらに、先端側のシース構成体１０Ａの内周面に
はリング状のばね受部６７が突設されている。そして、
先端側の振動伝達部材構成体８Ａの外周面にはばね受部
６６，６７間に配置されるコイルばね６８が装着されて
いる。A ring-shaped spring receiving portion 66 is projectingly provided on the outer peripheral surface of the rear end portion of the vibration transmitting member constituting body 8A on the front end side. Further, a ring-shaped spring receiving portion 67 is projectingly provided on the inner peripheral surface of the distal end side of the sheath forming body 10A. And
A coil spring 68 arranged between the spring receiving portions 66 and 67 is mounted on the outer peripheral surface of the vibration transmitting member constituting body 8A on the distal end side.
【００３９】そこで、上記構成のものにあっては超音波
処置装置本体１を使用しない場合には先端側のシース構
成体１０Ａと振動伝達部材構成体８Ａとを一体的に組み
付けて一体化した先端側着脱ユニットを超音波処置装置
本体１から取り外すことにより、超音波処置装置本体１
を消毒し易くすることができる。Therefore, in the case of the above construction, when the ultrasonic treatment apparatus main body 1 is not used, the distal end side sheath assembly 10A and the vibration transmitting member assembly 8A are integrally assembled and integrated. By removing the side detachable unit from the ultrasonic treatment apparatus main body 1, the ultrasonic treatment apparatus main body 1
Can be easily disinfected.
【００４０】さらに、先端側着脱ユニットを複数種類準
備しておくことにより、処置の種類に応じて適切な先端
側着脱ユニットを超音波処置装置本体１に適宜選択的に
交換して装着することができ、使い勝手を高めることが
できる。Furthermore, by preparing a plurality of types of distal end side detachable units, it is possible to appropriately and selectively attach the distal end side detachable unit to the ultrasonic treatment apparatus main body 1 according to the type of treatment. It is possible to improve usability.
【００４１】また、先端側着脱ユニットの振動伝達部材
構成体８Ａをステンレスによって形成し、先端側のシー
ス構成体１０Ａとともに一体的に組み付けて一体化した
使い捨て部品によって形成する構成にしてもよい。な
お、本発明は上記実施例に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できること
は勿論である。Further, the vibration transmitting member constituting body 8A of the tip side detachable unit may be formed of stainless steel and integrally formed with the sheath forming body 10A on the tip side to be formed as an integrated disposable component. It should be noted that the present invention is not limited to the above-mentioned embodiments, and it is needless to say that various modifications can be made without departing from the gist of the present invention.
【００４２】[0042]
【発明の効果】本発明によれば離間対向配置された挾持
手段の一対の挾持要素間の距離を検出する距離検出手段
を設けるとともに、この距離検出手段からの検出データ
にもとづいて超音波振動子の超音波出力を制御する超音
波出力制御手段を設けたので、超音波振動の印加時のパ
ラメータを適正に制御し、安定に血管の止血作業等を行
なうことができる。According to the present invention, the distance detecting means for detecting the distance between the pair of holding elements of the holding means arranged facing each other at a distance is provided, and the ultrasonic transducer based on the detection data from the distance detecting means. Since the ultrasonic wave output control means for controlling the ultrasonic wave output is provided, it is possible to appropriately control the parameters at the time of applying the ultrasonic vibration and stably perform the hemostasis work of the blood vessel.
【図１】 本発明の第１の実施例を示すもので、（Ａ）
は超音波処置装置の概略構成図、（Ｂ）は超音波処置装
置本体の概略構成図。FIG. 1 shows a first embodiment of the present invention (A)
Is a schematic configuration diagram of an ultrasonic treatment apparatus, and (B) is a schematic configuration diagram of an ultrasonic treatment apparatus main body.
【図２】 （Ａ）は受け部材の受け部と先端チップとの
間の距離と受信用圧電素子による検出信号との関係を示
す特性図、（Ｂ）は受け部材の受け部と先端チップとの
間の距離と超音波出力との関係を示す特性図。FIG. 2A is a characteristic diagram showing the relationship between the distance between the receiving part of the receiving member and the tip and the detection signal from the receiving piezoelectric element, and FIG. 2B is the receiving part of the receiving member and the tip. The characteristic view which shows the relationship between the distance between and ultrasonic output.
【図３】 本発明の第２の実施例の超音波処置装置を示
す概略構成図。FIG. 3 is a schematic configuration diagram showing an ultrasonic treatment apparatus according to a second embodiment of the present invention.
【図４】 受け部材の受け部と先端チップとの間の距離
と超音波出力との関係を示す特性図。FIG. 4 is a characteristic diagram showing a relationship between a distance between a receiving portion of a receiving member and a tip and ultrasonic output.
【図５】 本発明の第３の実施例を示すもので、（Ａ）
は超音波処置装置の概略構成図、（Ｂ）は受け部材の受
け部と先端チップとの間の距離と受信用圧電素子による
検出信号との関係を示す特性図、（Ｃ）は受け部材の受
け部と先端チップとの間の距離と電圧制御発振器の発振
周波数との関係を示す特性図。FIG. 5 shows a third embodiment of the present invention (A)
Is a schematic configuration diagram of the ultrasonic treatment apparatus, (B) is a characteristic diagram showing the relationship between the distance between the receiving portion of the receiving member and the tip and the detection signal by the receiving piezoelectric element, and (C) is the receiving member. FIG. 6 is a characteristic diagram showing the relationship between the distance between the receiving portion and the tip and the oscillation frequency of the voltage controlled oscillator.
【図６】 （Ａ）は本発明の第４の実施例の要部構成を
示す縦断面図、（Ｂ）は第４の実施例の変形例を示す縦
断面図。FIG. 6A is a vertical cross-sectional view showing a main part configuration of a fourth embodiment of the present invention, and FIG. 6B is a vertical cross-sectional view showing a modified example of the fourth embodiment.
【図７】 本発明の第５の実施例の超音波処置装置の要
部の概略構成図。FIG. 7 is a schematic configuration diagram of a main part of an ultrasonic treatment apparatus according to a fifth embodiment of the present invention.
【図８】 本発明の第６の実施例の超音波処置装置の要
部の縦断面図。FIG. 8 is a vertical cross-sectional view of a main part of an ultrasonic treatment device according to a sixth embodiment of the present invention.
２…挿入部、６…超音波振動子、８…振動伝達部材、９
ａ…生体組織接合面、１３…挾持部（挾持手段）、１７
…受信用圧電素子（距離検出手段）、１８…受信器（超
音波出力制御手段）、２１…レーザプローブ（距離検出
手段）、２２…レーザ変位計（超音波出力制御手段）。2 ... insertion part, 6 ... ultrasonic transducer, 8 ... vibration transmitting member, 9
a ... Living tissue joining surface, 13 ... Holding part (holding means), 17
... receiving piezoelectric element (distance detecting means), 18 ... receiver (ultrasonic output controlling means), 21 ... laser probe (distance detecting means), 22 ... laser displacement meter (ultrasonic output controlling means).
Claims (1)
組織を挾持する挾持手段が設けられ、超音波振動を発生
する超音波振動子からの超音波振動が振動伝達部材を介
して前記挾持手段に伝達されて前記挾持手段に挾持され
ている生体組織が接合される超音波処置装置において、
離間対向配置された前記挾持手段の一対の挾持要素間の
距離を検出する距離検出手段を設けるとともに、この距
離検出手段からの検出データにもとづいて前記超音波振
動子の超音波出力を制御する超音波出力制御手段を設け
たことを特徴とする超音波処置装置。1. A holding means for holding a living tissue is provided at a distal end portion of an insertion portion to be inserted into a body, and ultrasonic vibration from an ultrasonic vibrator for generating ultrasonic vibration is transmitted through a vibration transmitting member. In the ultrasonic treatment device, which is transmitted to the holding means and is joined to the living tissue held in the holding means,
A distance detecting means for detecting a distance between a pair of holding elements of the holding means arranged facing each other at a distance is provided, and an ultrasonic wave control unit for controlling an ultrasonic output of the ultrasonic transducer based on detection data from the distance detecting means. An ultrasonic treatment apparatus comprising a sound wave output control means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16924693A JP3236134B2 (en) | 1993-07-08 | 1993-07-08 | Ultrasonic treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16924693A JP3236134B2 (en) | 1993-07-08 | 1993-07-08 | Ultrasonic treatment equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0723968A true JPH0723968A (en) | 1995-01-27 |
| JP3236134B2 JP3236134B2 (en) | 2001-12-10 |
Family
ID=15882957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16924693A Expired - Fee Related JP3236134B2 (en) | 1993-07-08 | 1993-07-08 | Ultrasonic treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3236134B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007144012A (en) * | 2005-11-30 | 2007-06-14 | Aloka Co Ltd | Ultrasonic surgical instrument and vibration absorbing tool |
-
1993
- 1993-07-08 JP JP16924693A patent/JP3236134B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007144012A (en) * | 2005-11-30 | 2007-06-14 | Aloka Co Ltd | Ultrasonic surgical instrument and vibration absorbing tool |
| JP4482518B2 (en) * | 2005-11-30 | 2010-06-16 | アロカ株式会社 | Ultrasonic surgical device and vibration absorber |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3236134B2 (en) | 2001-12-10 |
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