JP2987175B2 - Ultrasound therapy device - Google Patents

Ultrasound therapy device

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Publication number
JP2987175B2
JP2987175B2 JP2176322A JP17632290A JP2987175B2 JP 2987175 B2 JP2987175 B2 JP 2987175B2 JP 2176322 A JP2176322 A JP 2176322A JP 17632290 A JP17632290 A JP 17632290A JP 2987175 B2 JP2987175 B2 JP 2987175B2
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ultrasonic
member
vibration
formed
portion
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JPH0464351A (en
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達也 久保田
裕昭 加川
謙二 吉野
光正 岡田
友尚 桜井
博幸 楠
浩司 神原
哲丸 窪田
忠夫 萩野
敏彦 鈴田
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オリンパス光学工業株式会社
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Description

【発明の詳細な説明】 [産業上の利用分野] この発明は組織切除用の外刃と内刃とを備えた超音波治療装置に関する。 DETAILED DESCRIPTION OF THE INVENTION [Field of the Industrial] This invention relates to an ultrasonic treatment apparatus provided with an outer cutter and inner cutter for tissue ablation.

[従来の技術] 一般に、超音波治療装置として手元側のハンドピース内に超音波振動子が配設されるとともに、このハンドピースに連結された外套管内に振動伝達部材が挿通され、 In the prior art] Generally, with the ultrasonic vibrator to the proximal side of the handpiece as an ultrasonic therapy device is arranged, the vibration transmitting member in the mantle tube that is connected to the handpiece is inserted,
超音波振動子で発生する超音波振動がこの振動伝達部材を介して先端部側に伝達される構成のものが知られている。 There is known a configuration in which ultrasonic vibrations generated by the ultrasonic vibrator is transmitted to the distal end side via the vibration transmission member. この場合、超音波振動子は例えばPZT等の圧電素子と電極とが積層状態で連結されて構成されている。 In this case, ultrasonic transducer and piezoelectric element and the electrodes, for example PZT or the like is configured by connecting in a stacked state. さらに、この超音波振動子には略円錐形状のホーンが連結され、このホーンの先端には管体によって形成された振動伝達部材が連結されている。 Moreover, this is the ultrasonic vibrator is connected horn of substantially conical, the vibration transmitting member is connected which is formed by the tube at the tip of the horn. そして、超音波振動子で発生させた超音波振動はホーンおよび振動伝達部材によって生体組織および結石等の破砕作業に必要な振幅に増幅されるようになっており、この超音波治療装置の使用時には振動伝達部材の先端を体腔内にある結石や生体組織等に押し当てて超音波振動させることにより、結石を破砕したり、生体組織を切除したりするようになっている。 Then, the ultrasonic vibration generated in the ultrasonic vibrator adapted to be amplified to the amplitude required for crushing operation, such as biological tissue and calculus by the horn and the vibration transmission member, in use of the ultrasonic treatment apparatus the tip of the vibration transmitting member is pressed against the stone and the living tissue or the like in the body cavity by ultrasonic vibration, or crushed stones, are adapted to or excised biological tissue.

ところで、この種の超音波治療装置として例えば実開昭60−37310号公報に示されているように超音波振動子の基端部側に電動モータを連結し、このモータによって振動伝達部材を超音波振動子とともに一体的に回転させることにより、生体組織の切除を効率よく行なう構成のものが開発されている。 Incidentally, the electric motor is connected to the proximal end side of the ultrasonic transducer as shown as this type of ultrasonic treatment apparatus, for example, in Japanese Unexamined Utility Model Publication No. 60-37310, the vibration transmission member by the motor super by rotating integrally with wave oscillator, those resection of biological tissue efficiently perform configuration have been developed.

[発明が解決しようとする課題] 従来構成のものにあっては手元側のハンドピース内に配設された超音波振動子の基端部側に電動モータが連結されていたので、ハンドピースが大形化するとともに、 Since the electric motor to the proximal end of the invention Problems to be Solved] ultrasonic transducer disposed within the hand piece proximal the apparatus having the conventional configuration was connected, handpiece as well as it increased in size,
重量が大きくなり、操作性が悪くなる問題があった。 Weight increases, there is a problem that the operability is deteriorated.

この発明は上記事情に着目してなされたもので、ハンドピースを小形軽量化することができ、操作性の向上を図ることができる超音波治療装置を提供することを目的とするものである。 The present invention has been made in view of the above circumstances, the handpiece can be compact lightweight, it is an object to provide an ultrasonic therapy apparatus which can improve the operability.

[課題を解決するための手段] この発明は先端部近傍に外刃が形成された外套管と、 [Means for Solving the Problems] This invention is a mantle tube outer cutter formed near the tip portion,
この外套管の内部に挿通され、手元側に設けられた超音波振動子からの超音波振動を伝達する振動伝達部材と、 This is inserted into the inside of the mantle tube, and a vibration transmission member for transmitting ultrasonic vibration from the ultrasonic transducer provided on the proximal side,
この振動伝達部材の先端に回転可能に連結され、前記外刃と対応する部位に内刃が形成された回転部材と、前記振動伝達部材の先端と回転部材との間に配置され、超音波振動によって前記回転部材を前記振動伝達部材の周方向に沿って回転駆動する超音波モータとを具備したことを特徴とする超音波治療装置である。 This is rotatably connected to the distal end of the vibration transmitting member, a rotating member whose inner edge is formed at a site corresponding to the outer cutter, it is disposed between the tip and the rotating member of the vibration transmitting member, ultrasonic vibration an ultrasonic treatment apparatus characterized by comprising an ultrasonic motor for rotating along the rotating member in a circumferential direction of the vibration transmission member by.

[作用] 内刃が形成された回転部材を超音波モータによって振動伝達部材の周方向に沿って回転駆動し、外套管の先端部近傍に形成された外刃とこの回転部材の内刃とによって生体組織を切除することにより、ハンドピースを小形軽量化して操作性の向上を図るようにしたものである。 [Operation] inner blade is a rotating member formed rotary driven along the circumferential direction of the vibration transmission member by the ultrasonic motor, by the inner blade of the rotary member and the distal end portion near the formed outer cutter of the mantle tube by ablating biological tissue and the handpiece and compact lightweight those to improve the operability.

[実施例] 以下、この発明の第1の実施例を第1図乃至第3図を参照して説明する。 [Example] Hereinafter, a description will be given of a first embodiment of the present invention with reference to FIG. 1 to FIG. 3.

第2図は超音波治療装置1の概略構成を示すもので、 FIG. 2 shows a schematic configuration of an ultrasonic treatment apparatus 1,
2はこの超音波治療装置1のハンドピース部である。 2 is a handpiece portion of the ultrasonic treatment apparatus 1. このハンドピース部2の内部にはランジュバン型の超音波振動子3が収容されている。 It is accommodated ultrasonic transducer 3 of Langevin type inside the handpiece 2. この超音波振動子3には例えばPZT等の圧電素子と電極とが交互に積層されている。 This is to the ultrasonic transducer 3 and the piezoelectric element, for example PZT or the like and the electrodes are alternately stacked. また、この超音波振動子3の前部には略円錐形状のホーン4、この超音波振動子3の後部には裏打ち板5がそれぞれ配置されている。 Further, the ultrasonic transducer substantially conical shape of the horn 4 is the front of the 3, back plate 5 at the rear of the ultrasonic transducer 3 are arranged. この場合、ホーン4の後端面中央部位には取付け軸としてのボルト6の一端部が螺着されている。 In this case, one end of the bolt 6 as the mounting shaft is screwed to the rear end face central portion of the horn 4. このボルト6は超音波振動子3の圧電素子、電極および裏打ち板5の各中心部にそれぞれ形成されたボルト挿通孔内に挿通されている。 The bolt 6 is inserted through the ultrasonic piezoelectric element of the vibrator 3, the electrodes and the bolt insertion hole formed to each center of the backing plate 5. そして、このボルト6の他端部は裏打ち板5の後方に延出されており、 The other end portion of the bolt 6 is extended to the rear of the backing plate 5,
この延出端部にナット7が螺着されてホーン4、超音波振動子3の圧電素子、電極および裏打ち板5が連結状態で保持固定されている。 The extending end nut 7 is screwed into the horn 4, the piezoelectric element of the ultrasonic transducer 3, the electrode and the backing plate 5 is held fixed in a coupled state.

また、ホーン4の前端部には管体によって形成された振動伝達部材8が着脱可能に連結されている。 Further, the vibration transmission member 8 at the front end of the horn 4 which is formed by the tube is connected detachably. さらに、 further,
この振動伝達部材8の管内には吸引管路9が形成されている。 Suction conduit 9 is formed in the tube of the vibration transmission member 8. この吸引管路9にはホーン4およびボルト6の軸心部に形成された吸引管路10が連結されている。 Suction conduit 10 is connected which is formed in the axial portion of the horn 4 and the bolt 6 to the suction conduit 9.

また、振動伝達部材8の周囲は外套管11によって覆われている。 Further, the periphery of the vibration transmission member 8 is covered by the mantle tube 11. この外套管11の基端部はハンドピース部2に連結されている。 The proximal end of the mantle tube 11 is connected to the handpiece unit 2. さらに、この外套管11の先端部には生体組織の切除を行なう外刃12が形成されている。 Furthermore, outer cutter 12 to perform ablation of biological tissue is formed at the distal end of the mantle tube 11. この外刃12は外套管11の先端部に形成された略矩形状の開口部の端縁部によって形成されている。 The outer cutter 12 is formed by the edge of the substantially rectangular opening formed in the distal end portion of the mantle tube 11.

また、振動伝達部材8の先端部側には円筒状の回転部材13が回転可能に連結されている。 Further, the front end portion of the vibration transmission member 8 cylindrical rotary member 13 is rotatably connected. この回転部材13には外套管11の外刃12と対応する部位に内刃14が形成されている。 Inner cutter 14 is formed at a portion corresponding to the outer cutter 12 of the mantle tube 11 to the rotating member 13. この内刃14は略矩形状の開口部の端縁部によって形成されている。 The inner cutter 14 is formed by the edge of a substantially rectangular opening.

さらに、この回転部材13は第3図に示す円環形超音波モータ15によって振動伝達部材8の周方向に沿って回転駆動されるようになっている。 Further, the rotary member 13 is adapted to be rotated along the circumferential direction of the vibration transmission member 8 by the annular ultrasonic motor 15 shown in Figure 3. この円環形超音波モータ The circular ring type ultrasonic motor
15のステータ16には金属材料によって形成されるリング状の振動体16aの底面に圧電素子16bが接着されている。 The piezoelectric element 16b on the bottom surface of the ring-shaped vibrating body 16a formed by a metal material to the stator 16 of the 15 have been bonded.
この圧電素子16bは円周方向に沿って多数に分割して正負交互に分極処理されており、これらに対応して2組の電極群が設けられている。 The piezoelectric element 16b is polarized in positive and negative alternately by dividing the number along the circumferential direction, two sets of electrode groups corresponding to these are provided. さらに、このステータ16のリング状振動体16の上面には超音波モータ15のロータ17を形成するリング状の移動体17aが加圧接触されている。 Furthermore, a ring-shaped movable body 17a for forming the rotor 17 of the ultrasonic motor 15 is brought into pressure contact on the upper surface of the ring-shaped vibrating body 16 of the stator 16.
この場合、振動伝達部材8の先端部には第1図に示すような小径な突設部18が突設されている。 In this case, the distal end portion of the vibration transmission member 8 small diameter projecting section 18 as shown in FIG. 1 are projected. この突設部18の外周面にはリング状の溝19が形成されている。 Ring-shaped groove 19 is formed on the outer peripheral surface of the projecting portion 18. そして、 And,
この突設部18のリング状溝19内に回転部材13の基端部が回転可能に連結されている。 The base end portion of the rotary member 13 is rotatably connected to the ring-shaped groove 19 of the projecting portion 18. さらに、回転部材13の基端部には内方向に突設されたリング状の係合部20が形成されている。 Furthermore, proximal end portion a ring-shaped engaging portion 20 which projects inwardly to the rotary member 13 is formed. そして、この係合部20が振動伝達部材8のリング状溝19内に挿入された状態で係合されており、この係合部20によって超音波モータ15のリング状移動体17a It is approved engaged in a condition in which the engagement portion 20 is inserted into the ring-shaped groove 19 of the vibration transmission member 8, the ring-shaped moving member 17a of the ultrasonic motor 15 by the engagement portion 20
が形成されている。 There has been formed. また、超音波モータ15のステータ16 Further, the stator 16 of the ultrasonic motor 15
は振動伝達部材8の突設部18によって形成されるリング状の段部21に装着されている。 It is mounted in a ring-shaped stepped portion 21 which is formed by the projecting portion 18 of the vibration transmission member 8.

なお、第1図中で、22はハンドピース部2内のホーン4に形成された振動伝達部材8の着脱部、23はこのハンドピース部2に設けられた送水口である。 Incidentally, in FIG. 1, 22 is detachable portion of the handpiece 2 vibration transmission is formed on the horn 4 of the member 8, 23 is a water supply port provided in the hand piece unit 2.

次に、上記構成の作用について説明する。 Next, the operation of the above structure.

まず、超音波治療装置1の使用時に生体組織の切除作業を行なう場合には第1図に示すように外套管11の外刃 First, if during the use of ultrasound therapy apparatus 1 performs a cutting work of the living tissues outer cutter of the mantle tube 11, as shown in Figure 1
12の開口部と回転部材13の内刃14の開口部とを合致させた状態でこれらの開口部内に切除対象となる生体組織を挿入する。 Inserting the ablation subject to biological tissue within the openings in a state of being matched to the opening of the inner cutter 14 of the opening 12 the rotating member 13. そして、この状態で円環形超音波モータ15を駆動し、回転部材13を振動伝達部材8の周方向に沿って回転させる。 Then, by driving the annular ultrasonic motor 15 in this state, it is rotated along the rotating member 13 in the circumferential direction of the vibration transmission member 8. このように回転部材13が回転すると外套管 Thus the rotating member 13 rotates the outer tube
11の外刃12とこの回転部材13の内刃14とによってこれらの両開口部内に挿入された生体組織が切除される。 11 inserted body tissue in both the openings of the inner edge 14 of the outer cutter 12 Toko of the rotating member 13 is ablated.

そこで、上記構成のものにあっては内刃14が形成された回転部材13を超音波モータ15によって振動伝達部材8 Therefore, the vibration transmitting rotation member 13 inner cutter 14 are formed the configuration described above by an ultrasonic motor 15 member 8
の周方向に沿って回転駆動し、外套管11の先端部近傍に形成されて外刃12とこの回転部材13の内刃14とによって生体組織を切除するようにしたので、従来のようにハンドピース部2内に配設された超音波振動子3の基端部側に電動モータを連結させた場合に比べてハンドピース部2を小形軽量化して操作性の向上を図ることができる。 Circumferential rotation driven along. Thus to ablate body tissue by being formed in the vicinity of the distal end portion of the mantle tube 11 and the inner edge 14 of the outer cutter 12 Toko rotary member 13, as in the conventional hand the handpiece unit 2 with small weight can improve operability as compared with the case that has connecting the electric motor to the base end side of the ultrasonic transducer 3 arranged in the piece unit 2.

また、第4図および第5図はこの発明の第2の実施例を示すものである。 Further, FIGS. 4 and 5 shows a second embodiment of the present invention.

これは、第4図に示すようにハンドピース部2の内部に配設された超音波振動子31として第5図に示すように一面側に2分割された電極33,34が形成され、多面側に共通電極35が形成されるとともに、各電極33,34毎に分極方向を反転させた2組の圧電素子32を設け、この超音波振動子31によって超音波モータ15のステータを兼用させるようにしたものである。 This fourth electrode 33, 34 bisected on one side as shown in FIG. 5 as an ultrasound transducer 31 disposed in the interior of the handpiece portion 2 as shown in FIG. Are formed, multifaceted together with the common electrode 35 is formed on the side, two sets of piezoelectric elements 32 obtained by inverting the polarization direction for each electrode 33 and 34 provided by the ultrasonic transducer 31 so as to also serve the stator of the ultrasonic motor 15 it is obtained by the. この場合、2組の圧電素子 In this case, two sets of piezoelectric elements
32,32の各電極33,34間の分割部36を一致させ、残留分極の方向を対向させてU字状に形成された2個の電極板3 32 and 32 to match the dividing section 36 between the electrodes 33 and 34, formed in a U-shape are opposed to the direction of remanent polarization two electrode plates 3
7,38を間にして電極33,34を重ね合わせ、中心部に絶縁筒39を挿通させている。 Superposing electrodes 33 and 34 during the 7, 38, thereby inserting the insulation cylinder 39 in the center. そして、一方の圧電素子32の共通電極35の面にはホーン4、他方の圧電素子32の共通電極35の面には共通電極板40がそれぞれ接合され、この共通電極板40には裏打ち板5を接合させてボルト6によってこれらを一体的に固定させている。 The horn 4 on a surface of the common electrode 35 of one of the piezoelectric elements 32, the common electrode plate 40 are respectively bonded to the surface of the common electrode 35 of the other piezoelectric element 32, the backing plate 5 to the common electrode plate 40 and it is integrally fixed to these by bolts 6 by joining. さらに、電極33,3 Furthermore, the electrode 33,3
4と共通電極35とには電極板37,38と共通電極板40とを介して図示しない駆動制御回路が接続されている。 4 and the common electrode 35 to the (not shown) through the electrode plate 37 and the common electrode plate 40 drive control circuit is connected.

そこで、上記構成のものにあっては共通電極板40に対して電極板37,38に位相制御可能な駆動電源を接続させ、その駆動周波数をたわみ共振周波数に調節する。 Therefore, the configuration described above to connect the phase controllable driving power to the electrode plates 37 and 38 with respect to the common electrode plate 40 is adjusted to the resonant frequency deflection the drive frequency. そして、その位相差を0にして駆動することにより、励振電圧を2組の圧電素子32に同一に印加させ、一方が延びたとき他方が縮む状態のたわみ共振振動を行なわせてホーン4に連結された振動伝達部材8の出力端部に軸に直角方向の直線運動を行なわせるようになっている。 And that by the phase difference is driven to 0, the excitation voltage to the two pairs of piezoelectric elements 32 is applied to the same, coupled to the horn 4 to perform the bending resonance vibration in a state where the other contracts when one is extended It adapted to perform the linear motion of the perpendicular to the axis at the output end of the vibration transmitting member 8 which is. この場合、一方の電極板37に対し、他方の電極板38に印加する駆動電圧の位相を変化させることにより、振動伝達部材8の出力端部8aの振動状態を変化させることができるようになっている。 In this case, with respect to one electrode plate 37, by changing the phase of the drive voltage to be applied to the other electrode plate 38, making it possible to change the vibration state of the output end portion 8a of the oscillation transmitting member 8 ing. さらに、この振動伝達部材8の出力端部8aには第1の実施例と略同様の回転部材13によって形成される超音波モータ15のロータが加圧接触されており、このロータに形成された略矩形状の開口部の端縁部によって内刃14が構成されている。 Further, the output end 8a of the oscillation transmitting member 8 are contacted rotor pressure of the ultrasonic motor 15 which is formed by the first embodiment and substantially the same rotary member 13, formed in the rotor inner cutter 14 is constituted by the edge of a substantially rectangular opening.

したがって、上記構成のものにあっては内刃14が形成されたロータを超音波モータ15によって振動伝達部材8 Therefore, the configuration described above vibration transmission the rotor inner blade 14 is formed by the ultrasonic motor 15 member 8
の周方向に沿って回転駆動し、外套管11の先端部近傍に形成された外刃12とこのロータの内刃14とによって生体組織を切除するようにしたので、第1の実施例と略同様にハンドピース部2を小形軽量化して操作性の向上を図ることができる。 Circumferential rotation driving along, since the outer cutter 12 formed in the vicinity of the distal end portion of the mantle tube 11 and the inner blades 14 of the rotor so as to ablate body tissue, the first embodiment and substantially Similarly the handpiece 2 by size and weight reduction can improve the operability.

さらに、第6図はこの発明の第3の実施例を示すものである。 Further, FIG. 6 shows a third embodiment of the present invention.

これは、第1の実施例の円環形超音波モータ15のステータ16の電極構造を変形させたものである。 This is obtained by modifying the electrode structure of the stator 16 of annular ultrasonic motor 15 of the first embodiment. すなわち、 That is,
このステータ16の圧電素子16bには半径方向に分割された2組の電極群51,52が設けられている。 Two sets of electrode groups 51, 52 which are divided in a radial direction is provided in the piezoelectric element 16b of the stator 16. この場合、内周部側の電極群51と外周部側の電極群52とは幾何学的にπ/2の位相の異なる振動を励振できるように配置されている。 In this case, it is disposed so as to be excited phase different vibration geometrically [pi / 2 and the electrode group 52 of the inner peripheral portion side of the electrode assembly 51 and the outer peripheral side.

したがって、この場合には超音波モータ15の動作特性を向上させることができるので、操作性の一層の向上を図ることができる。 Accordingly, since it is possible to improve the operating characteristics of the ultrasonic motor 15 in this case, it is possible to further improve the operability.

なお、この発明は上記各実施例に限定されるものではない。 The present invention is not limited to the above embodiments.

例えば、第7図に示すように第1の実施例の外套管26 For example, the outer tube 26 of the first embodiment as shown in FIG. 7
の先端部に形成された外刃27aの開口部61の端縁形状を略波形に形成しても良く、また第8図に示すように開口部62の端縁形状が略楕円形の外刃27b、或いは第9図に示すように開口部63の端縁形状が略矩形の外刃27cを使用しても良い。 Outer blade may be formed in a substantially wave formed an edge shape of the opening 61 of the outer cutter 27a at the tip, also the edge shape of the opening 62 as shown in FIG. 8 is generally elliptical 27b, or the edge shape of the opening 63 as shown in FIG. 9 may be used a substantially rectangular outer cutter 27c. さらに、第10図および第11図に示すように第1の実施例の外套管26の先端部に傾斜状の切欠部71 Further, notch 71 sloped at the tip portion of the mantle tube 26 of the first embodiment as shown in FIGS. 10 and 11
を設け、この切欠部71から外部側に突没可能に設けられた略球状の研磨具72,73はそれぞれ第1の実施例の超音波モータ15によって回転駆動する構成にしても良く、また第12図に示すように略円柱状の研磨具74を第1の実施例の超音波モータ15によって回転駆動する構成にしても良い。 The provided may be configured to rotationally drive the ultrasonic motor 15 of each grinding tool 72, 73 of substantially spherical shape provided can project and retreat from the notch 71 in the outer side the first embodiment, also the a substantially cylindrical grinding tool 74 as shown in FIG. 12 may be configured to rotationally drive the ultrasonic motor 15 of the first embodiment.

さらに、その他この発明の用紙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。 In addition, other can of course be variously modified embodiments without departing from the sheets of this invention.

[発明の効果] この発明によれば内刃が形成された回転部材を超音波モータによって振動伝達部材の周方向に沿って回転駆動し、外套管の先端部近傍に形成された外刃とこの回転部材の内刃とによって生体組織を切除するようにしたので、ハンドピースを小形軽量化することができ、操作性の向上を図ることができる。 The effect of the invention] rotary member inner cutter is formed according to the present invention is driven to rotate along the circumferential direction of the vibration transmission member by the ultrasonic motor, a tip portion formed outer cutter in the vicinity of the mantle tube this since so as to ablate body tissue by the inner blade of the rotary member, the handpiece can be compact lightweight, it is possible to improve the operability.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

第1図乃至第3図はこの発明の第1の実施例を示すもので、第1図は超音波治療装置の要部構成を示す縦断面図、第2図は超音波治療装置の概略構成を示す縦断面図、第3図は円環状超音波モータの概略構成を示す斜視図、第4図および第5図はこの発明の第2の実施例を示すもので、第4図は超音波振動子の装着状態を示す縦断面図、第5図は圧電素子を示す斜視図、第6図はこの発明の第3の実施例の電極構造を示す平面図、第7図乃至第12図はそれぞれ異なる他の実施例の要部構成を示す斜視図である。 Figure 1 to Figure 3 show a first embodiment of the present invention, FIG. 1 is a longitudinal sectional view showing the main structure of the ultrasonic therapeutic apparatus, Figure 2 is a schematic arrangement of an ultrasonic therapeutic apparatus longitudinal sectional view showing a third diagram is a perspective view showing a schematic configuration of a toric ultrasonic motor, FIGS. 4 and 5 show a second embodiment of the present invention, Figure 4 is an ultrasonic longitudinal sectional view showing a mounted state of the vibrator, Fig. 5 is a perspective view showing a piezoelectric element, Fig. 6 is a plan view showing an electrode structure of a third embodiment of the present invention, FIG. 7 to FIG. 12 it is a perspective view showing a configuration of a main part of other different embodiments, respectively. 2……ハンドピース部、3……超音波振動子、8……振動伝達部材、11……外套管、12……外刃、13……回転部材、14……内刃、15……超音波モータ。 2 ...... handpiece unit, 3 ...... ultrasonic transducer, 8 ...... vibration transmission member, 11 ...... mantle tube, 12 ...... outer blade, 13 ...... rotating member, 14 ...... inner blade, 15 ...... than wave motor.

フロントページの続き (72)発明者 加川 裕昭 東京都渋谷区幡ケ谷2丁目43番2号 オ リンパス光学工業株式会社内 (72)発明者 楠 博幸 東京都渋谷区幡ケ谷2丁目43番2号 オ リンパス光学工業株式会社内 (72)発明者 桜井 友尚 東京都渋谷区幡ケ谷2丁目43番2号 オ リンパス光学工業株式会社内 (72)発明者 鈴田 敏彦 東京都渋谷区幡ケ谷2丁目43番2号 オ リンパス光学工業株式会社内 (72)発明者 神原 浩司 東京都渋谷区幡ケ谷2丁目43番2号 オ リンパス光学工業株式会社内 (72)発明者 吉野 謙二 東京都渋谷区幡ケ谷2丁目43番2号 オ リンパス光学工業株式会社内 (72)発明者 萩野 忠夫 東京都渋谷区幡ケ谷2丁目43番2号 オ リンパス光学工業株式会社内 (56)参考文献 特開 平1−145053(JP,A) 特開 昭63−197445(JP,A) 実開 昭63−100016(JP,U) Of the front page Continued (72) inventor Hiroaki Kagawa Tokyo, Shibuya-ku, Hatagaya 2-chome No. 43 No. 2 Olympus Optical Industry Co., Ltd. in the (72) inventor Hiroyuki Kusunoki Shibuya-ku, Tokyo Hatagaya 2-chome No. 43 No. 2 Olympus Optical in industry Co., Ltd. (72) invention's Sakurai TomoSho Tokyo, Shibuya-ku, Hatagaya 2-chome No. 43 No. 2 Olympus optical industry Co., Ltd. in the (72) inventor Toshihiko Suzuta Shibuya-ku, Tokyo Hatagaya 2-chome No. 43 No. 2 Olympus the optical industry Co., Ltd. (72) inventor Koji Kamihara Shibuya-ku, Tokyo Hatagaya 2-chome No. 43 No. 2 Olympus optical industry Co., Ltd. in the (72) inventor Kenji Yoshino Shibuya-ku, Tokyo Hatagaya 2-chome No. 43 No. 2 Olympus the optical industry Co., Ltd. (72) inventor Tadao Hagino Shibuya-ku, Tokyo Hatagaya 2-chome No. 43 No. 2 Olympus optical industry Co., Ltd. in the (56) reference Patent flat 1-145053 (JP, a) JP Akira 63 -197445 (JP, A) JitsuHiraku Akira 63-100016 (JP, U) (58)調査した分野(Int.Cl. 6 ,DB名) A61B 17/36 330 A61B 17/32 A61B 17/22 (58) investigated the field (Int.Cl. 6, DB name) A61B 17/36 330 A61B 17/32 A61B 17/22

Claims (1)

    (57)【特許請求の範囲】 (57) [the claims]
  1. 【請求項1】先端部近傍に外刃が形成された外套管と、 この外套管の内部に挿通され、手元側に設けられた超音波振動子からの超音波振動を伝達する振動伝達部材と、 この振動伝達部材の先端に回転可能に連結され、前記外刃と対応する部位に内刃が形成された回転部材と、 前記振動伝達部材の先端と回転部材との間に配置され、 And 1. A mantle tube near tip outer cutter is formed, it is inserted inside the outer tube, and the vibration transmitting member for transmitting ultrasonic vibration from the ultrasonic transducer provided on the proximal side this is rotatably coupled to the distal end of the vibration transmitting member, a rotating member whose inner edge is formed at a site corresponding to the outer cutter, is disposed between the tip and the rotating member of the vibration transmitting member,
    超音波振動によって前記回転部材を前記振動伝達部材の周方向に沿って回転駆動する超音波モータと を具備したことを特徴とする超音波治療装置。 It said rotating member an ultrasonic treatment apparatus characterized by comprising an ultrasonic motor for rotating along the circumferential direction of the vibration transmission member by the ultrasonic vibration.
JP2176322A 1990-07-05 1990-07-05 Ultrasound therapy device Expired - Fee Related JP2987175B2 (en)

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