JPH10295700A - Surgical operation appliance - Google Patents

Surgical operation appliance

Info

Publication number
JPH10295700A
JPH10295700A JP9109320A JP10932097A JPH10295700A JP H10295700 A JPH10295700 A JP H10295700A JP 9109320 A JP9109320 A JP 9109320A JP 10932097 A JP10932097 A JP 10932097A JP H10295700 A JPH10295700 A JP H10295700A
Authority
JP
Japan
Prior art keywords
part
ultrasonic vibration
tip
liquid
portion
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
JP9109320A
Other languages
Japanese (ja)
Inventor
Shinetsu Harada
Shigeo Ito
Yukimasa Yamaguchi
重雄 伊藤
新悦 原田
幸正 山口
Original Assignee
Sumitomo Bakelite Co Ltd
住友ベークライト株式会社
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, 住友ベークライト株式会社 filed Critical Sumitomo Bakelite Co Ltd
Priority to JP9109320A priority Critical patent/JPH10295700A/en
Publication of JPH10295700A publication Critical patent/JPH10295700A/en
Application status is Pending legal-status Critical

Links

Abstract

PROBLEM TO BE SOLVED: To prevent a horn itself from being deteriorated by heating of the horn and safely cut while confirming the position of the cut part by setting the tip part to be a belly of vibration of an operation part into a recessed shape and arranging an insertion part in the adjacent to the rear end side continuing to the recess part.
SOLUTION: A vibration transmission appliance 1 is connected to an ultrasonic vibration source of the same resonance frequency by a connecting screw 4 in the rear end part and a high frequency power of the resonance frequency is applied on the ultrasonic vibration source so that the generated ultrasonic vibration is transmitted to an organisms tissue via an operation part 2 in the tip. A liquid passage 5 which is extended in the length direction so as to be communicated with the liquid path in the ultrasonic vibration source is provided in the inside of the ultrasonic vibration transmission appliance 1 and the tip side of the liquid passage 5 is opened in the liquid injection hole 6 in the adjacent to the rear part of the operation part 2. The shape of the operation part, 2 is so formed that a recess part 3 is provided in an insertion part 7 having a fixed cross section and formed into a straight line and the insertion part 7 is arranged in the adjacent to the rear end side continuing to the recess part.
COPYRIGHT: (C)1998,JPO

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【発明の属する技術分野】本発明は、超音波振動により生物組織の骨化した組織、硬組織等を切削、分離する外科手術用具に関するものである。 The present invention relates to the tissues ossification biological tissue by ultrasonic vibration, cutting hard tissues such as, but relates to the separation to surgical instrument.

【0002】 [0002]

【従来の技術】従来、生物組織、特に硬骨組織及び軟骨組織の切削には外科用メスが用いられているが、頸椎等の手術では精密な作業が要求されるために、長時間を有し、手術者に多大の労力がかかり、且つ切断分離に高度の技術を必要とすると言う欠点があった。 Conventionally, in order biological tissue, but scalpel is used in particular for cutting bone tissue and cartilage tissue, where precision work is required in surgery cervical like, has a long , it takes much labor to the operator, there is and disadvantage that require a high degree of technology cut and separated. また、超音波を利用した外科手術用具も多数開発されており、超音波振動源に接続された作業部を超音波振動させ、接触した生物組織を破砕し、吸引除去する為の外科手術用具(例えば、特公昭47−39197号公報)が知られている。 The surgical instrument using ultrasound has also been developed a large number, the working unit connected to the ultrasonic vibration source is ultrasonically vibrated, the contacted biological tissue by crushing, surgical instrument for sucking and removing ( For example, JP-B-47-39197) it is the known. しかし、前述の破砕、吸引除去するための外科手術用具などは、硬い生物組織を切削するには不適当であったり、また押しながら精密切削が必要な部位に対しては切削位置が予定部位よりずれてしまい周囲の組織を傷つけてしまうという恐れがあった。 However, disruption of the foregoing, such as surgical instrument for aspirating removed, or unsuitable for cutting hard biological tissue and from the cutting position for the precision cutting is required sites proposed site while pressing there was fear that damage the deviation will surrounding tissue.

【0003】 [0003]

【発明が解決しようとする課題】本発明は、従来の外科手術用具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、ホーンの発熱によるホーン自体が劣化するという問題を解消すると共に切削部の位置を確認しながら、かつ視野を確保し、超音波振動による先端作業部の位置ずれをおこさず、細かい作業を安全に行うのに適した形状の外科手術用具を提供しようとするものである。 The present invention invention SUMMARY is] is intended for the purpose of solving such problems of the conventional surgical instrument, thereby eliminating the problem of horn itself due to heat generation of the horn deteriorates while checking the position of the cutting portion and that secures the field of view, and to provide an ultrasonic without causing positional deviation of the distal working portion due to vibration, surgical instrument having a shape suitable for safely while fine work it is.

【0004】 [0004]

【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骨化した組織もしくは硬組織を切削、分離する外科手術装置の、先端部は超音波振動の腹となり生体組織に接する作業部を有し、長さ方向に延びた液体通路を有する振動伝達具であって、該作業部は、 SUMMARY OF THE INVENTION The present invention provides cutting ossification tissue or hard tissue of the living tissue by ultrasonic vibration, the surgical apparatus for separating, the tip body tissue becomes an antinode of the ultrasonic vibrations having a working portion in contact, a vibration transmitting member having a liquid passageway extending in the longitudinal direction, the working portion,
振動の腹となる先端部が凹形状となし、該凹部に続く後端側近傍には挿入部を有し、さらに好ましくは該液体通路の先端側には、該挿入部の後方近傍或いは凹部中央近傍に開口し、該作業部の先端方向にイリゲーション液を噴出する液体噴出孔を設けたことを特徴とする外科手術用具である。 No tip becomes an antinode of vibration and concave, the rear end vicinity followed recess has an insertion portion, more preferably to the distal end side of the liquid passage, the rear near or recesses central insertion portion opened in the vicinity of a surgical instrument, characterized in that a liquid ejection hole for ejecting the irrigation liquid to the tip direction of the working unit.

【0005】 [0005]

【発明の実施の形態】以下、図面を参照して、本発明を詳細に説明する。 DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, with reference to the drawings, the present invention will be described in detail. 図1は本発明の一実施例となる外科手術用具の全体を示す図で、図2はその先端作業部の形状を示す図である。 Figure 1 is a diagram showing the entire surgical instrument which is an embodiment of the present invention, FIG 2 is a diagram showing the shape of the tip working portion. 振動伝達具(1)は、後端部の接続ネジ(4)により同じ共振周波数の超音波振動源(図示していない)に接続され、超音波振動源に共振周波数の高周波電力を加えることにより発生させた超音波振動を、 Vibration transmitting device (1) it is connected to the ultrasonic vibration source of the same resonance frequency by the rear end of the connecting screw (4) (not shown), by applying a high-frequency power of the resonance frequency to the ultrasonic vibration source the ultrasonic vibration is generated,
先端の作業部(2)を介して生物組織に伝える。 Through working portion of the tip (2) conveys to the biological tissue. 超音波振動源と振動伝達具(1)の接続は、超音波振動の腹面で行えば、ネジ接続の他、溶接、圧着等の方法が可能であり、特に限定されない。 Connection of the ultrasonic vibration source and the vibration transmission member (1) is be carried out at the ventral surface of the ultrasonic vibration, the other screw connection, welding, a method of crimping or the like are possible, not particularly limited. また、振動伝達具自体にネジ部を設けず、袋ナット等を用いて接続しても良い。 Also, without a screw portion provided on the vibration transmitting member itself, it may be connected using a cap nut or the like.

【0006】超音波振動源としては、内部に液体通路を有する電歪型、磁歪型のいずれの振動子も使用でき、特に限定はされないが、電気、機械変換効率の優れた電歪型動子を用いるのが好ましい。 [0006] As the source of ultrasonic vibrations, electrostriction type having a liquid passage therein, any vibrator of magnetostrictive can also be used, but are not particularly limited, electrical, excellent electrostrictive type mechanical conversion efficiency Doko it is preferable to use. 超音波振動源で発生した超音波振動は、振動伝達具(1)によって伝達拡大され、作業部(2)の先端で最大振幅となるが、その振幅は、100〜200μmに達する。 Ultrasonic vibration generated by the ultrasonic vibration source is expanded transmitted by the vibration transmitting device (1), although the maximum amplitude at the tip of the working unit (2), the amplitude reaches 100-200 [mu] m. これ以上に振幅を上げると、切削速度はより大きくなるが、切削部の焦げや作業部(2)の耐久性の劣化、切削音が大きい等の問題を生ずるので、上限振幅は200μm程度とするのが好ましいが、技術的には特に限定されるものではない。 When more to increase the amplitude, but the cutting speed is greater, the durability deterioration of the burnt and work of the cutting portion (2), than cause problems such as cutting sound is large, the upper limit amplitude is about 200μm preference is, but not particularly limited technically. また、共振周波数は20〜45KHzが好ましく、22〜 Further, the resonance frequency is preferably 20~45KHz,. 22 to
40KHzで特に良い振動が得られる。 Particularly good vibration can be obtained at 40KHz.

【0007】振動伝達具(1)の内部には、超音波振動源内部の液体通路に連通して長さ方向に延びた液体通路(5)を有し、液体通路(5)の先端側は作業部(2) [0007] Inside of the vibration transmitting device (1), communicates with the ultrasonic vibration source inside the liquid passage has a liquid passage (5) extending in the longitudinal direction, the leading end side of the liquid passage (5) working unit (2)
の後方近傍に設けられた液体噴出孔(6)で開口している。 It is open at the liquid injection holes provided in the rear vicinity of (6). そして、作業部(2)の形状は、図2に示したように、断面積が一定で直線状をなす挿入部(7)の先端部に、凹形状部(3)が設けられている。 Then, the shape of the working unit (2), as shown in FIG. 2, the distal end of the insertion portion formed straight (7) in cross-sectional area is constant, concave portions (3) are provided.

【0008】図3は、振動伝達具(1)の断面積を変化させて、超音波振動の振幅を拡大させる形状の例を示したものであるが、切削に必要な振幅が振動体で発生した振幅にほぼ等しい場合には、作業部(2)までの断面積を変化させずに、(c)図に示すように細い形状にするのが狭い箇所での作業に適し、また視野を確保でき良い。 [0008] Figure 3, by changing the cross-sectional area of ​​the vibration transmitting device (1), but illustrates an example of a shape to enlarge the amplitude of the ultrasonic vibration amplitude required for the cutting occurs in the vibrating member It was when nearly equal to the amplitude, without changing the cross-sectional area of ​​up working unit (2), suitable for working in narrow space is to the narrow shape, as shown in (c) FIG, also ensuring a field of view it may be. 図3(a)(b)のように、振動伝達具(1)の後方側の径を太くする場合でも先端側は細くする。 As shown in FIG. 3 (a) (b), the tip side even when thickening the diameter of the rear side of the vibration transmission member (1) is thinner. さらにそれに続く挿入部(7)は、特に限定はされないが、超音波振動に対する耐久性や、施術対象となる脊椎等の生体構造に応じて先端から3〜50mmの範囲で断面積を一定にするのが良い。 Further insertion portion followed by (7) is not particularly limited, durability and for the ultrasonic vibration, the cross-sectional area constant in the range of 3~50mm from the tip in accordance with the anatomy of the spine such as the treatment target good it is. これによって、先端の作業部(2)を狭い場所で深く挿入することができる。 Thus, it is possible to deeply insert working portion of the tip (2) in a narrow place. 挿入部(7)の外径形状は、特に限定されるものではなく、円筒形や、図2に示すような角柱形、角椎形等の対称形であればいずれでも良い。 Outer shape of the insertion portion (7) is not limited in particular, cylindrical or prismatic shape as shown in FIG. 2, may be any symmetrical shape such as Sumishi form.

【0009】作業部(2)あるいは挿入部(7)の幅は、術式や、生体の施術対象部位によっても異なるが、 [0009] the width of the working unit (2) or the insert part (7) is operative procedure and may vary depending on treatment target part of a living body,
刃形状とは異なり、1.5〜4.0mm程度とするのが好ましい。 Unlike edge geometry, preferably about 1.5 to 4.0 mm. また、作業部(2)の先端には凹形状部(3)が設けられていて、施術時には、図4に示したように、荒削りした後の生体組織(9)の角部に接触面(8)を押し当て位置決めを行い、切削する構造となっている。 Further, the tip of the working portion (2) have concave portions (3) is provided, before the treatment, as shown in FIG. 4, the contact surface on the corner portion of the biological tissue (9) after rough ( pressed against 8) performs the positioning, and has a structure to be cut. また、表面からの溝状削開も可能であり、その際凹型の形状により位置ズレをおこさず安全性に優れている。 Further, it is also possible groove shape cut open from the surface, it is excellent in safety without causing a positional displacement by that time concave shape. その為少ない力で削除、削開が可能であり更に安全性が高くなる。 Therefore remove a small force, KezuHiraki further safety is possible is high. 凹形状部の(3)の深さ形状は特に限定されず、接触面(8)を生体組織に押し当て超音波振動を加えても位置がずれない形状であればよい。 Depth shape (3) of the concave portion is not particularly limited, the contact surface (8) may be any shape that does not misaligned even by adding pressing ultrasonic vibrations to the living tissue. また、 Also,
接触面(8)は平面には限らず曲面でも良い。 The contact surface (8) may be a curved surface is not limited to the flat.

【0010】作業部(2)あるいは挿入部(7)の後方近傍に設けられた液体噴出孔(6)は、作業部(2)の先端の方向に向かってイリゲーション液を噴出するように調整されていれば、液体噴出孔(6)の開口位置は特に限定されない。 [0010] working unit (2) or liquid injection holes provided in the rear vicinity of the insertion portion (7) (6) is adjusted to eject the irrigation fluid toward the distal end of the working unit (2) long as it, the opening position of the liquid discharge holes (6) are not particularly limited. しかし作業性からみて開口位置は作業部凹部中央近傍が望ましい。 However workability viewed from the open position the working portion recess near the center is desirable. イリゲーション液の液体噴出孔(6)より超音波振動によって噴出したイリゲーション液は、図4に示すように、作業部(2)先端もしくは生体組織(9)の切削部位周辺に噴出し、超音波振動によって切削する際の摩擦熱の冷却と、術部の洗浄に使用される。 Irrigation fluid irrigation liquid jetted from the ultrasonic vibrations liquid injection ports (6), as shown in FIG. 4, erupted cutting site periphery of the working unit (2) tip or body tissue (9), an ultrasonic vibration and cooling the frictional heat at the time of cutting by used for washing the operative site. また、液体噴出孔(6)の開口径については、特に限定はないが、液体通路(5)の直径より小さい方が好ましい。 Also, the opening diameter of the liquid jet hole (6) is not particularly limited, smaller than the diameter of the liquid passage (5) is preferable.

【0011】 [0011]

【発明の効果】本発明の従うと超音波振動により生体組織の骨化した組織や硬組織を切削、分離する作業を従来の外科手術用具に比べて技術の熟練を必要とせず、かつ迅速に切断でき、また、長時間連続して高振幅で使用できるので外科手術用具として好適である。 Effects of the Invention According the present invention by ultrasonic vibration cutting ossification tissue and hard tissue of the living tissue, without requiring a skilled technique than the task of separating the conventional surgical instrument, and quickly cutting can also suitable as a surgical instrument so long can be used continuously at high amplitude.

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

【図1】本発明の一実施例となる外科手術用具の全体構造を示す図である。 1 is a diagram showing the entire structure of a surgical instrument which is an embodiment of the present invention.

【図2】本発明の一実施例となる外科手術用具の、先端作業部の形状を示す図である。 [Figure 2] of the surgical instrument which is an embodiment of the present invention, showing the shape of the tip working portion.

【図3】本発明の外科手術用具の、振動伝達具後方側の形状を示す図である。 Surgical instrument of FIG. 3] present invention, showing the shape of the vibration transmission member rear side.

【図4】本発明の外科手術用具の、使用状況とイリゲーション液の噴出方向を示す図である。 [4] the surgical instrument of the present invention, showing the ejection direction of the usage and irrigation liquid.

【図5】本発明の外科手術用具の使用状況を示す図である。 5 is a diagram showing the usage of a surgical instrument of the present invention.

【図6】本発明の外科手術用具の使用状況を示す図である。 6 is a diagram showing the usage of a surgical instrument of the present invention.

【符号の説明】 DESCRIPTION OF SYMBOLS

1 振動伝達具 2 作業部 3 凹形状部 4 接続ネジ 5 液体通路 6 液体噴出孔 7 挿入部 8 接触面 9 生体組織 10 術者の視野 1 the field of view of the vibration transmitting device 2 the working unit 3 concave portion 4 connection screw 5 liquid passages 6 liquid jet hole 7 insertion portion 8 contact surface 9 biological tissue 10 caster

Claims (2)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 超音波振動により生体組織の骨化した組織もしくは硬組織を切削、分離する外科手術装置の、先端部は超音波振動の腹となり生体組織に接する作業部を有し、長さ方向に延びた液体通路を有する振動伝達具であって、該作業部は、振動の腹となる先端部が凹形状となし、該凹部に続く後端側近傍には挿入部を有することを特徴とする外科手術用具。 1. A cutting ossification tissue or hard tissue of the living tissue by ultrasonic vibration, a surgical device for separating the tip portion has a working portion in contact with the body tissue becomes an antinode of the ultrasonic vibration, the length wherein a vibration transmitting member having a liquid passageway extending in a direction, the working portion, the tip portion is concave and without comprising the antinodes of the vibration, that is on the rear end side near following the recess having an insertion portion surgical tool that with.
  2. 【請求項2】 液体通路の先端側には、該挿入部の後方近傍に開口し、該作業部の先端部の方向にイリゲーション液を噴出する液体噴出孔を設けた請求項1記載の外科手術用具。 To 2. A distal end side of the liquid passage is opened in the rear vicinity of the insertion portion, the working portion of the tip direction irrigation liquid surgery according to claim 1, wherein the liquid ejection holes provided for ejecting the tool.
JP9109320A 1997-04-25 1997-04-25 Surgical operation appliance Pending JPH10295700A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9109320A JPH10295700A (en) 1997-04-25 1997-04-25 Surgical operation appliance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9109320A JPH10295700A (en) 1997-04-25 1997-04-25 Surgical operation appliance

Publications (1)

Publication Number Publication Date
JPH10295700A true JPH10295700A (en) 1998-11-10

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Family Applications (1)

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