JP2003010201A - Ultrasonic therapeutic instrument - Google Patents

Ultrasonic therapeutic instrument

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Publication number
JP2003010201A
JP2003010201A JP2001194706A JP2001194706A JP2003010201A JP 2003010201 A JP2003010201 A JP 2003010201A JP 2001194706 A JP2001194706 A JP 2001194706A JP 2001194706 A JP2001194706 A JP 2001194706A JP 2003010201 A JP2003010201 A JP 2003010201A
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JP
Japan
Prior art keywords
probe
ultrasonic
ultrasonic vibration
therapeutic instrument
tip
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Pending
Application number
JP2001194706A
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Japanese (ja)
Inventor
Teruo Ouchi
輝雄 大内
Original Assignee
Pentax Corp
ペンタックス株式会社
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Publication date
Application filed by Pentax Corp, ペンタックス株式会社 filed Critical Pentax Corp
Priority to JP2001194706A priority Critical patent/JP2003010201A/en
Publication of JP2003010201A publication Critical patent/JP2003010201A/en
Application status is Pending legal-status Critical

Links

Abstract

PROBLEM TO BE SOLVED: To provide an ultrasonic therapeutic instrument that can be used by putting it through a endo-therapy accessory insertion channel of a soft endoscope and can significantly expand applications without an abdominal operation. SOLUTION: In an ultrasonic therapeutic instrument designed to transmit ultrasonic vibration generated in an ultrasonic vibration generation section 2 arranged in a handpiece section 1 to the tip of a probe 5 through the probe 5 of a metal pipe form, the probe 5 is formed of an superalastic alloy pipe such as nickel-titanium for example to easily bend with a relatively small radius of curvature.

Description

【発明の詳細な説明】 【0001】 【発明の属する技術分野】この発明は、超音波振動により生体組織や結石等を破壊、除去するために用いられる超音波治療具に関する。 BACKGROUND OF THE INVENTION [0001] TECHNICAL FIELD OF THE INVENTION The present invention destroys the biological tissue and calculus or the like by the ultrasonic vibration, an ultrasonic treatment instrument used to remove. 【0002】 【従来の技術】超音波治療具は一般に、ハンドピース部に配置された超音波振動発生部で発生した超音波振動を、金属製パイプ状のプローブを経由してプローブの先端に伝達するようになっている。 [0002] Ultrasonic treatment instrument generally transmitted, the ultrasonic vibration generated by the ultrasonic vibration generating unit disposed in the handpiece part, via a metal pipe-shaped probe into the tip of the probe It has become way. 【0003】そのような超音波治療具のプローブは、超音波振動を伝達するものなので、超音波振動を吸収してしまうプラスチック材等で形成することはできず、ステンレス鋼やチタン等の金属によって形成されている(特許第2959850号公報等)。 [0003] Probe of such ultrasonic treatment device, since something to transmit the ultrasonic vibration can not be formed of a plastic material or the like which absorbs ultrasonic vibrations, the metal such as stainless steel or titanium It is formed (Japanese Patent No. 2959850, etc.). 【0004】 【発明が解決しようとする課題】上述のような従来の超音波治療具は開腹手術中に用いられてきたが、内視鏡の処置具挿通チャンネルに挿通して使用すれば、開腹することなく体内の処置に用いることができる。 [0004] The present invention is to provide While the conventional ultrasonic treating device as described above has been used in open surgery, the use by inserting the treatment instrument insertion channel of an endoscope, laparotomy it can be used in the treatment of the body without. 【0005】そこで従来は、超音波治療具のプローブを硬性内視鏡の処置具挿通チャンネルに挿通するケースがあったが、プローブを曲げることができないので、適用範囲の格段に広い軟性内視鏡の処置具挿通チャンネルに通すことはできない。 [0005] Therefore Conventionally, a probe of an ultrasonic treatment device there is a case of inserting the treatment instrument insertion channel of the rigid endoscope, it is impossible to bend the probe, much wider flexible endoscope coverage of it can not be passed through a treatment tool insertion channel. そのため、用途が限られてしまい、開腹手術中に用いるケースがほとんどだった。 Therefore, applications will be limited, the case to be used in open surgery was the most. 【0006】そこで本発明は、軟性内視鏡の処置具挿通チャンネルに通して使用することができ、開腹手術なしでの適用を格段に広げることができる超音波治療具を提供することを目的とする。 [0006] sokodé the present invention teeth, flexible inner viewing mirror field treatment tool insertion channel two through hand used to the ancient capital moth can, open surgery without de field applied wo remarkably similar spread ancient city moth can ultrasonic treatment immediately wo provide to the ancient capital wo purpose door to. 【0007】 【課題を解決するための手段】上記の目的を達成するため、本発明の超音波治療具は、ハンドピース部に配置された超音波振動発生部で発生した超音波振動を、金属製パイプ状のプローブを経由してプローブの先端に伝達するようにした超音波治療具において、プローブを超弾性合金製パイプによって形成したものである。 [0007] [Means for Solving the Problems] To achieve the above object, an ultrasonic treatment instrument of the present invention, the ultrasonic vibration generated by the ultrasonic vibration generating unit disposed in the handpiece portion, metal via the manufacturing pipe-like probe in the ultrasonic treatment device which is adapted to transmit to the tip of the probe is a probe that is formed by super-elastic alloy pipe. 【0008】なお、プローブの外周に、可撓性の合成樹脂材からなる外皮シースが被覆されていてもよい。 [0008] Incidentally, the outer periphery of the probe, the outer skin sheath made of a flexible synthetic resin material may be coated. 【0009】 【発明の実施の形態】図面を参照して本発明の実施例を説明する。 DETAILED DESCRIPTION OF THE INVENTION Referring to the accompanying drawings illustrating the embodiment of the present invention. 図1は、超音波治療具の全体構成を示しており、術者の手で保持されるハンドピース1内に、超音波振動を発生する超音波振動子2が配置されている。 Figure 1 shows the overall configuration of the ultrasonic therapeutic device, the handpiece 1 held by the hand of the operator, the ultrasonic transducer 2 for generating ultrasonic vibrations is arranged. 3はその電源コードである。 3 is its power cord. 【0010】超音波振動子2の振動部には、超音波振動を先端に伝達するプローブ5の基端がテーパ状のホーン4を介して連結されている。 [0010] the vibration part of the ultrasonic transducer 2, the proximal end of the probe 5 for transmitting ultrasonic vibrations to the tip is connected via a tapered horn 4. 6は、ホーン4をハンドピース1に押圧固定するナットである。 6 is a nut for pressing and fixing the horn 4 to the handpiece 1. 【0011】ホーン4とプローブ5とは、その連結部分の断面を拡大して図示する図2に示されるように、金属製のつなぎ環7を介して連結されており、超音波振動子2で発生した超音波振動が、ホーン4で増幅されてプローブ5の基端に伝達され、さらにプローブ5を媒体としてプローブ5の先端に伝達される。 [0011] The horn 4 and the probe 5, as shown in FIG. 2 which illustrates an enlarged cross section of the connecting portion are connected via a metal connecting rings 7, the ultrasonic transducer 2 ultrasonic vibration generated is amplified by the horn 4 is transmitted to the proximal end of the probe 5, and further transmitted to the tip of the probe 5 to the probe 5 as a medium. 【0012】ホーン4の内面とプローブ5の内面には一つながりに連通する流路が形成されていて、ハンドピース1に配置された接続口金8と連通している。 [0012] The horn 4 Roh inner surface of door probe 5 Roh inner surface of second blade a stretch similar communication through the flow path moth formed hand have the hand, the hand piece 1 two-arranged other connection base 8 door communicated with hand there. したがって、水等を接続口金8から注入してプローブ5の先端から放出させることができ、或いは吸引チューブを接続口金8に接続してプローブ5の先端から吸引することができる。 Thus, by injecting water or the like from the connection mouth ring 8 can be released from the tip of the probe 5, or can be sucked from the tip of the probe 5 by connecting the suction tube to the connection mouth ring 8. 【0013】プローブ5は、例えばニッケル−チタン系等の超弾性合金製パイプによって形成されており、図1 [0013] probe 5, for example, nickel - is formed by a super-elastic alloy pipe titanium-based, etc., FIG. 1
に二点鎖線で示されるように、比較的小さな曲率半径で容易に曲げることができる。 As indicated by the two-dot chain line in, it can be easily bent relatively small radius of curvature. 【0014】その結果、屈曲した状態の軟性内視鏡の処置具挿通チャンネル(図示せず)内にプローブ5を挿脱することができる。 [0014] As a result, it is possible to insertion and removal of the probe 5 in the treatment instrument insertion channel of the flexible endoscope of the bent state (not shown). ただし、プローブ5を形成する超弾性合金材の素材自体の弾力性は極めて小さいので、超音波振動の伝達性は一般の金属とほとんど変わらない。 However, since the elasticity of the material itself of the superelastic alloy material forming the probe 5 is extremely small, the transmissibility of the ultrasonic vibration is hardly different from the ordinary metal. 【0015】このようなプローブ5としては、例えば外径が1〜2.5mmで肉厚が0.05〜0.2mm程度のパイプ材を用いるとよい。 [0015] As such a probe 5, for example, a thickness outside diameter at 1~2.5mm is preferably used 0.05~0.2mm about the pipe. パイプ材は棒材と比較して同じ断面積でも腰を強くすることができるので、横ぶれが少なくて超音波振動の伝達効率がよい。 Since the pipe is able to strongly lower back in the same cross-sectional area as compared to the rod, the lateral shake is less good transmission efficiency of the ultrasonic vibration. プローブ5の長さは、内視鏡の処置具挿通チャンネルの長さよりある程度長くする必要があるので1〜2m程度になる。 The length of the probe 5 is on the order of 1~2m it is necessary to somewhat longer than the length of the treatment instrument insertion channel of an endoscope. 【0016】このように構成された超音波治療具を軟性内視鏡の処置具挿通チャンネルに通して使用する際には、屈曲した状態の処置具挿通チャンネルにプローブ5 [0016] When using through the thus configured ultrasonic treatment instrument in the treatment instrument insertion channel of the flexible endoscope probe 5 to the treatment instrument insertion channel of the bent state
を通して、体内の組織や結石等を超音波振動で直接破壊、除去することができる。 Through, it can be directly broken, removed by ultrasonic vibration in the body tissue and calculus and the like. 【0017】ただし、超音波振動をかける際には、プローブ5をできるだけ真っ直ぐに近い状態にしておいた方が、プローブ5の中間部分での超音波振動の減衰を小さくすることができる。 [0017] However, when applying the ultrasonic vibration may be better to leave the probe 5 to as straight as possible close state, to reduce the attenuation of the ultrasonic vibration at the intermediate portion of the probe 5. 【0018】なお、本発明は上記実施例に限定されるものではなく、例えば図3に示されるように、プローブ5 [0018] still, the present invention leaves the above-described embodiment two limited are things out teeth without, Tatoeba Figure 3 two shown is Yo two, probe 5
の外周に、例えば四フッ化エチレン樹脂等のような可撓性の合成樹脂材からなる外皮シース9を被覆してもよい。 The outer periphery of, for example, may be coated with flexible skin sheath 9 made of a synthetic resin such as tetrafluoroethylene resin. 【0019】そのように構成することにより、超音波振動がプローブ5から内視鏡側に伝わることによる振動減衰と内視鏡側の部材の破損等を抑制することができる。 [0019] By constituting as such, it is possible to ultrasonic vibration to suppress the damage of an endoscope of the vibration damping and the endoscope side by transmitted it to the side member from the probe 5.
外皮シース9として摩擦係数の小さな材料、或いは弾力性の大きな材料を用いると効果が大きい。 The outer skin sheath 9 Toshite friction coefficient Roh small material, Aruiwa elasticity sex Roh large material wo used-effective moth large. 【0020】 【発明の効果】本発明によれば、ハンドピース部に配置された超音波振動発生部で発生した超音波振動を伝達する金属製パイプ状のプローブを超弾性合金製パイプによって形成したことにより、超音波治療具を軟性内視鏡の処置具挿通チャンネルに通して使用することができ、開腹手術なしでの超音波治療の適用を格段に広げることができる。 According to the present invention, a metal pipe-shaped probe that transmits ultrasonic vibrations generated by the ultrasonic vibration generating unit disposed in the handpiece portion is formed by super-elastic alloy pipe it allows the ultrasonic treatment instrument through a treatment instrument insertion channel of a flexible endoscope can be used, the application of ultrasonic treatment without laparotomy can be widened dramatically.

【図面の簡単な説明】 【図1】本発明の第1の実施例の超音波治療具の全体構成を示す側面断面図である。 It is a side sectional view showing the entire configuration of an ultrasonic treatment device of a first embodiment of the BRIEF DESCRIPTION OF THE DRAWINGS [Figure 1] present invention. 【図2】本発明の第1の実施例の超音波治療具の部分拡大側面断面図である。 2 is a partial enlarged side sectional view of the ultrasonic therapeutic device of the first embodiment of the present invention. 【図3】本発明の第2の実施例の超音波治療具の部分拡大側面断面図である。 3 is a partially enlarged side sectional view of the ultrasonic therapeutic device of the second embodiment of the present invention. 【符号の説明】 1 ハンドピース2 超音波振動子4 ホーン5 プローブ9 外皮シース [EXPLANATION OF SYMBOLS] 1 hand piece 2 ultrasonic vibrator 4 horn 5 probe 9 skin sheath

Claims (1)

  1. 【特許請求の範囲】 【請求項1】ハンドピース部に配置された超音波振動発生部で発生した超音波振動を、金属製パイプ状のプローブを経由して上記プローブの先端に伝達するようにした超音波治療具において、 上記プローブを超弾性合金製パイプによって形成したことを特徴とする超音波治療具。 The Patent Claims 1. A ultrasonic vibration generated by the ultrasonic vibration generating unit disposed in the handpiece part, via a metal pipe-shaped probe so as to transmit to the tip of the probe in the ultrasonic therapeutic device, ultrasonic therapy device, characterized in that the probe is formed by super-elastic alloy pipe. 【請求項2】上記プローブの外周に、可撓性の合成樹脂材からなる外皮シースが被覆されている請求項1記載の超音波治療具。 Wherein the outer periphery of the probe, an ultrasonic treatment device according to claim 1, wherein the outer skin sheath made of a flexible synthetic resin material is coated.
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US9066747B2 (en) 2007-11-30 2015-06-30 Ethicon Endo-Surgery, Inc. Ultrasonic surgical instrument blades
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