JPH08275952A - Ultrasonic dissecting and coagulating device - Google Patents
Ultrasonic dissecting and coagulating deviceInfo
- Publication number
- JPH08275952A JPH08275952A JP7081470A JP8147095A JPH08275952A JP H08275952 A JPH08275952 A JP H08275952A JP 7081470 A JP7081470 A JP 7081470A JP 8147095 A JP8147095 A JP 8147095A JP H08275952 A JPH08275952 A JP H08275952A
- Authority
- JP
- Japan
- Prior art keywords
- probe
- ultrasonic
- vibration
- movable
- vibration transmitting
- 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.)
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Links
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- Surgical Instruments (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、超音波振動を加えるこ
とによって生体組織の切除あるいは凝固を行う超音波切
開凝固装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ultrasonic cutting and coagulating apparatus for excising or coagulating living tissue by applying ultrasonic vibration.
【０００２】[0002]
【従来の技術】近年、体腔内に細長の挿入部を挿入する
ことにより、体腔内臓器などを観察したり、必要に応じ
て内視鏡観察下で各種治療処置が行われている。2. Description of the Related Art In recent years, by inserting an elongated insertion portion into a body cavity, various organs in the body cavity are observed and, if necessary, various medical treatments are performed under observation with an endoscope.
【０００３】前記内視鏡観察下で治療処置を行う方法の
一つとして生体組織を吸着あるいは把持等する外科用鉗
子が種々提案されており、例えば吸着あるいは把持して
いる部材に超音波振動を加えて生体組織を切除あるいは
凝固などの処置を行うもの等が知られている。Various surgical forceps for adsorbing or grasping a living tissue have been proposed as one of the methods for performing a medical treatment under the above-mentioned endoscopic observation. For example, ultrasonic vibration is applied to a member adsorbing or grasping. In addition, there are known ones that perform treatment such as excision or coagulation of living tissue.
【０００４】例えば、ＵＳＰ５３２２０５５号には、ハ
ウジングに搭載された超音波要素と、超音波振動を受け
取って振動する細長端を有する外科用刃と、外科用刃の
片側に沿いながら外科用刃に対置するシース先端部に設
けられた開閉自在なクランプ部と、このクランプ部と外
科用刃との間に組織を挟んで超音波要素からの超音波振
動を加えて切開あるいは凝固する超音波外科器具のため
のクランプ凝固装置及び切断システムが示されている。For example, US Pat. No. 5,322,055 discloses an ultrasonic element mounted in a housing, a surgical blade having an elongated end that vibrates when receiving ultrasonic vibration, and a surgical blade that is placed along one side of the surgical blade and is opposed to the surgical blade. Of an open / close clamp part provided at the distal end of the sheath and an ultrasonic surgical instrument that cuts or coagulates by sandwiching tissue between the clamp part and a surgical blade and applying ultrasonic vibration from an ultrasonic element. Clamp coagulator and cutting system for are shown.
【０００５】また、例えば特開平１−２３２９４８号公
報には切除部を構成する刃部に超音波振動を加えること
により生体組織の切除を効率的に行えるようにした外科
用切除鉗子が示されている。Further, for example, Japanese Unexamined Patent Publication No. 1-232948 discloses a surgical cutting forceps capable of efficiently cutting living tissue by applying ultrasonic vibration to a blade forming a cutting portion. There is.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、前記Ｕ
ＳＰ５３２２０５５号に示された超音波外科器具のため
のクランプ凝固装置及び切断システムでは、シースの先
端部に設けられている可動部であるクランプ部にシース
内を挿通する作動ロッドを接続して開閉動作が行なわれ
るようになっている。このため、シース内にクランプ部
に接続する作動ロッドを通すための細長穴を開けるなど
構造が複雑になり、使用後の洗滌が非常に難しく、感染
症を防止するためにはシースを使い捨てにしなければな
らない。また、可動部であるクランプ部と外科用刃部と
が分離した構造であるため、術者は術前にクランプ部と
外科用刃部との位置決めを行なわなければならなかっ
た。さらに、一般的に内視鏡下外科手術に使用する処置
具は、３００mm以上の長さを必要とし、製作上長手方向
の長さに比較的大きな誤差が生じるため前記シースとプ
ローブとの間に長さの誤差が生じ、後端部で位置決めを
行っても先端部で大きなズレが生じるおそれがあるの
で、先端部側に新たな位置決め手段を設けなければなら
ず、構造がますます複雑になるという問題がある。However, the above-mentioned U
In the clamp coagulation device and cutting system for ultrasonic surgical instruments shown in SP5322055, an operating rod inserted through the sheath is connected to a clamp part, which is a movable part provided at the distal end of the sheath, to open and close. Is being carried out. For this reason, the structure becomes complicated by forming an elongated hole for passing the operating rod connected to the clamp part in the sheath, it is very difficult to wash after use, and the sheath must be disposable to prevent infection. I have to. In addition, since the clamp part, which is a movable part, and the surgical blade part are separated from each other, the operator must position the clamp part and the surgical blade part before the operation. Further, generally, a treatment tool used for endoscopic surgery requires a length of 300 mm or more, and a relatively large error occurs in the lengthwise direction in manufacturing, so that the length between the sheath and the probe is large. There is a risk of length error, and even if positioning is performed at the rear end, a large deviation may occur at the front end, so new positioning means must be provided on the front end side, and the structure becomes more and more complicated. There is a problem.
【０００７】一方、前記特開平１−２３２９４８号公報
に示された外科用切除鉗子では、超音波振動が伝達され
る固定刃に可動刃がピンにより回動自在に接続されてい
る。このため、前記ピンに超音波振動に十分耐えられる
だけの強度を持たせるためには、超音波振動に対する疲
労強度に関係する因子である周波数，振幅，ピンの材
質，ピンの太さ及びピンの加工状態などを考慮すると、
ピンの太さが重要な因子となり、ピンを太くして疲労強
度を持たせることによって全体形状が大きくなって使い
難くなるという問題がある。On the other hand, in the surgical cutting forceps disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 1-232948, a movable blade is rotatably connected by a pin to a fixed blade to which ultrasonic vibration is transmitted. Therefore, in order to give the pin sufficient strength to withstand ultrasonic vibration, frequency, amplitude, pin material, pin thickness, and pin Considering processing conditions,
The thickness of the pin is an important factor, and there is a problem in that the entire shape becomes large and it becomes difficult to use by making the pin thick and providing fatigue strength.
【０００８】また、プローブ内部に金属性の作動棒が設
けられているため、プローブとの摩耗や発熱、異音など
の不具合が生じる。可動刃とプローブとの接続部、擦り
合わせ部が全て金属同士のため、振動のロス分が全て熱
・音に変わり、不具合となる。Further, since the metallic actuation rod is provided inside the probe, problems such as abrasion with the probe, heat generation, and abnormal noise occur. Since the connecting part between the movable blade and the probe and the rubbing part are all made of metal, the loss of vibration changes to heat and sound, resulting in a problem.
【０００９】本発明は、上記事情に鑑みてなされたもの
であり、超音波振動による強度が十分で、プローブの摩
耗、発熱、異音の発生など無い、使い易い安全な超音波
切開凝固装置を提供することを目的としている。The present invention has been made in view of the above circumstances, and provides a safe and easy-to-use ultrasonic incision coagulator which has sufficient strength due to ultrasonic vibration and does not cause probe wear, heat generation, or abnormal noise. It is intended to be provided.
【００１０】[0010]
【課題を解決するための手段及び作用】本発明の超音波
切開凝固装置は、後端部の超音波発振源に連結された超
音波プローブに超音波振動を伝達して生体組織を切除あ
るいは凝固する超音波切開凝固装置において、前記超音
波プローブの先端側に配置されて生体組織を把持または
切除する際の固定刃を構成する振動伝達部と、前記振動
伝達部に対向して前記振動伝達部に配設され、生体組織
を把持または切除する際の可動刃を構成する可動部と、
前記可動部と前記振動伝達部とを連結する連結部材と、
前記可動部を前記振動伝達部に対して開閉動作させる開
閉手段とを備え、前記連結部材の少なくとも前記振動伝
達部との接触部分を摺動部材で形成することで、超音波
振動による強度が十分確保すると共に、プローブの摩
耗、発熱、異音の発生など無く、操作性及び安全性を向
上させることを可能とする。The ultrasonic dissection and coagulation apparatus of the present invention cuts or coagulates biological tissue by transmitting ultrasonic vibrations to an ultrasonic probe connected to an ultrasonic oscillation source at the rear end. In the ultrasonic dissection and coagulation apparatus, a vibration transmitting unit that is disposed on the tip side of the ultrasonic probe and constitutes a fixed blade when grasping or excising a living tissue, and the vibration transmitting unit facing the vibration transmitting unit. And a movable part that constitutes a movable blade when grasping or excising a biological tissue,
A connecting member for connecting the movable portion and the vibration transmitting portion,
An opening / closing means for opening / closing the movable part with respect to the vibration transmitting part is provided, and at least a contact portion of the connecting member with the vibration transmitting part is formed of a sliding member, so that the strength by ultrasonic vibration is sufficient. In addition to ensuring the above, it is possible to improve operability and safety without causing wear, heat generation, or abnormal noise of the probe.
【００１１】[0011]
【実施例】以下、図面を参照しながら本発明の実施例に
ついて述べる。Embodiments of the present invention will be described below with reference to the drawings.
【００１２】図１ないし図３は本発明の第１実施例に係
わり、図１は超音波切開凝固装置の概略の構成を示す構
成図、図２は図１のプローブの構成を示す分解斜視図、
図３は図１の超音波切開凝固装置の先端断面を示す断面
図である。1 to 3 relate to the first embodiment of the present invention, FIG. 1 is a schematic diagram showing the construction of an ultrasonic dissection and coagulation apparatus, and FIG. 2 is an exploded perspective view showing the construction of the probe shown in FIG. ,
FIG. 3 is a cross-sectional view showing a cross-section of the tip of the ultrasonic incision coagulation apparatus in FIG.
【００１３】図１に示すように、外科用鉗子としての超
音波切開凝固装置１は、内部に超音波振動子を配設した
グリップ部２と、このグリップ部２に固定されている操
作部３と、前記グリップ部２の超音波振動子に連結され
て超音波振動を伝達する細長な超音波プローブ（以下プ
ローブと略記）４と、このプローブ４を被覆するシース
５とで構成されている。なお、操作部３には後述する可
動部を可動させるハンドピース３ａが設けられている。As shown in FIG. 1, an ultrasonic incision coagulator 1 as a surgical forceps has a grip portion 2 in which an ultrasonic transducer is arranged, and an operation portion 3 fixed to the grip portion 2. And an elongated ultrasonic probe (hereinafter abbreviated as a probe) 4 which is connected to the ultrasonic transducer of the grip portion 2 and transmits ultrasonic vibration, and a sheath 5 which covers the probe 4. The operation unit 3 is provided with a handpiece 3a that moves a movable unit described later.
【００１４】図２及びプローブ４の先端断面である図３
に示すように、プローブ４の先端には組織を切除、凝固
するための固定刃を構成する振動伝達部１１が設けら
れ、振動伝達部１１に対向する可動刃を構成する可動部
１２が設けられており、バネ鋼等の弾性部材１３が接続
されているとともに、前記弾性部材１３にはプローブ４
との連結部１４が設けらている。そして、連結部１４は
プローブ４の細径部１５に固定することができる。2 and FIG. 3 which is a cross section of the tip of the probe 4.
As shown in FIG. 3, the tip of the probe 4 is provided with a vibration transmitting portion 11 that constitutes a fixed blade for cutting and coagulating tissue, and a movable portion 12 that constitutes a movable blade facing the vibration transmitting portion 11 is provided. The elastic member 13 such as spring steel is connected to the elastic member 13 and the probe 4 is attached to the elastic member 13.
Is provided with a connecting portion 14. Then, the connecting portion 14 can be fixed to the small-diameter portion 15 of the probe 4.
【００１５】プローブ４の細径部１５と連結部１４との
間にはフッ素樹脂等の摺動部材やシリコンゴム等の弾性
部材が設けられていて、前記摺動部材ないし弾性部材は
筒状部１６及びワッシャ部１７からなり、連結部１４と
細径部１５が接触しないようになっている。A sliding member such as fluororesin or an elastic member such as silicon rubber is provided between the small-diameter portion 15 of the probe 4 and the connecting portion 14, and the sliding member or the elastic member is a tubular portion. 16 and the washer portion 17, the connecting portion 14 and the small diameter portion 15 are prevented from contacting each other.
【００１６】細径部１５には平面部１８が形成されてお
り、可動部１２と振動伝達部１１との位置固定ができる
ようになっている。A flat surface portion 18 is formed on the small-diameter portion 15 so that the movable portion 12 and the vibration transmitting portion 11 can be fixed in position.
【００１７】振動伝達部１１にはネジ部１９が設けられ
ておりプローブ４と着脱できるようになっている。The vibration transmitting portion 11 is provided with a screw portion 19 so that it can be attached to and detached from the probe 4.
【００１８】プローブ４の外周には可動部１２を開閉さ
せるための内シース２０が設けられており、その外周に
はシース５が設けられている。内シース２０の先端には
フッ素樹脂などの摺動部材で作られた摺動部２１が設け
られている。またフッ素樹脂など摺動部材を設ける変わ
りにプローブ４との連結部１４にフッ素樹脂コーティン
グなどを施すことも可能である。An inner sheath 20 for opening and closing the movable portion 12 is provided on the outer circumference of the probe 4, and a sheath 5 is provided on the outer circumference thereof. At the tip of the inner sheath 20, a sliding portion 21 made of a sliding member such as fluororesin is provided. Instead of providing a sliding member such as a fluororesin, it is possible to apply a fluororesin coating or the like to the connecting portion 14 with the probe 4.
【００１９】次に、このように構成された本実施例の作
用について説明する。Next, the operation of this embodiment thus constructed will be described.
【００２０】操作部３を操作することにより、内シース
２０が軸方向に前後する。内シース２０が前方向に動い
た場合、摺動部２１が可動部１２に接触し可動部１２を
閉じる。また内シース２０が後方に動くと可動部１２は
弾性部材１３の力で開く。By operating the operating portion 3, the inner sheath 20 moves back and forth in the axial direction. When the inner sheath 20 moves forward, the sliding portion 21 contacts the movable portion 12 and closes the movable portion 12. When the inner sheath 20 moves rearward, the movable portion 12 is opened by the force of the elastic member 13.
【００２１】グリップ部２内部の超音波振動子より発生
した超音波振動は、プローブ４に伝わり振動伝達部１１
に伝達される。可動部１２が閉じたとき、可動部１２と
振動伝達部１１との間に挟まれた組織は、振動伝達部１
１が超音波振動することにより発生する摩擦熱により焼
灼される。焼灼の間、組織は可動部１２によって挟まれ
ているため滑り落ちることはなく、確実に焼灼される。The ultrasonic vibration generated by the ultrasonic vibrator inside the grip portion 2 is transmitted to the probe 4 and the vibration transmitting portion 11 is transmitted.
Is transmitted to When the movable section 12 is closed, the tissue sandwiched between the movable section 12 and the vibration transmitting section 11 becomes the vibration transmitting section 1.
1 is cauterized by frictional heat generated by ultrasonic vibration. During the cauterization, the tissue is sandwiched by the movable portion 12, does not slip off, and is surely cauterized.
【００２２】なお、プローブ４と振動伝達部１１を分離
することができる。また、分離後、把持するタイプのも
のだけではなくハサミ状のものやヘラ状のものなどに交
換することができる。The probe 4 and the vibration transmitting section 11 can be separated. Further, after separation, not only the gripping type but also scissors-like or spatula-like ones can be replaced.
【００２３】このように本実施例によれば、プローブ４
に伝達された超音波は、振動伝達部１１に伝達される
が、ワッシャ部１７、筒状部１６により大きく減衰する
ため連結部１４には伝達されない。また、これら部材は
摺動部材で形成されているため超音波振動による摩擦熱
が発生せず、正常組織に熱の影響を与えることはない。
また、プローブの耐性も向上する。さらに、振動による
金属同士の接触による異音の発生の防止効果もある。As described above, according to this embodiment, the probe 4
The ultrasonic waves transmitted to the vibration transmission section 11 are transmitted to the vibration transmission section 11, but are not transmitted to the coupling section 14 because they are largely attenuated by the washer section 17 and the tubular section 16. Further, since these members are formed of sliding members, frictional heat due to ultrasonic vibration is not generated, and the normal tissues are not affected by the heat.
Also, the resistance of the probe is improved. Further, it also has an effect of preventing generation of abnormal noise due to contact between metals due to vibration.
【００２４】なお、フッ素樹脂コーティングなどを使用
すればさらに小型化、簡素化とを図ることが可能とな
る。If a fluororesin coating or the like is used, it is possible to achieve further miniaturization and simplification.
【００２５】次に、本発明の第２実施例について説明す
る、図４は本発明の第２実施例に係るプローブの先端の
構成を示す構成図である。Next, a second embodiment of the present invention will be described. FIG. 4 is a configuration diagram showing the configuration of the tip of a probe according to the second embodiment of the present invention.
【００２６】本実施例の構成は第１実施例とはぼ同じで
あるが、図４に示すように、弾性部材１３ベース３１に
接続され、ベース３１が細径部１５に固定されている。
ベース３１はフッ素樹脂などの摺動部材やシリコンゴム
などの弾性部材より構成されている。その他の構成、作
用は第１実施例と同じである。The construction of this embodiment is almost the same as that of the first embodiment, but as shown in FIG. 4, it is connected to the elastic member 13 base 31, and the base 31 is fixed to the small diameter portion 15.
The base 31 is composed of a sliding member such as fluororesin or an elastic member such as silicon rubber. Other configurations and operations are the same as those in the first embodiment.
【００２７】従って、本実施例では、第１実施例と同じ
くプローブ４の振動をベース３１でカットするため可動
部１２には振動は伝わらない。また細径部１５で発熱す
ることもない。また、第１実施例と比較して構造が単純
であるため洗條性は向上し、コス卜は下がる。Therefore, in this embodiment, the vibration of the probe 4 is cut by the base 31 as in the first embodiment, so that the vibration is not transmitted to the movable portion 12. Further, the small-diameter portion 15 does not generate heat. Further, since the structure is simpler than that of the first embodiment, the rinsing property is improved and the cost is lowered.
【００２８】次に、本発明の第３実施例例について説明
する、図５は本発明の第３実施例に係るプローブの先端
の構成を示す構成図である。Next, a third embodiment of the present invention will be described. FIG. 5 is a configuration diagram showing the configuration of the tip of a probe according to the third embodiment of the present invention.
【００２９】本実施例の構成は基本的には第１実施例と
はぼ同じであるが、図５に示すように、可動部１２はフ
ッ素樹脂などの摺動部材で形成された根元部４１が連結
されており、根元部３１とプローブ４は同じく摺動部材
で形成されたピン４２で回転可能に固定されている。ま
た根元部４１には作動棒４３に接続されるピン４４が固
定されており作動棒４３にはフッ素樹脂などの摺動チュ
ーブ４６が被覆されている。その他の構成、作用は第１
実施例と同じである。The construction of this embodiment is basically the same as that of the first embodiment, but as shown in FIG. 5, the movable portion 12 has a base portion 41 formed of a sliding member such as fluororesin. Are connected, and the base 31 and the probe 4 are rotatably fixed by a pin 42 which is also formed of a sliding member. A pin 44 connected to the actuating rod 43 is fixed to the base portion 41, and the actuating rod 43 is covered with a sliding tube 46 made of fluororesin or the like. Other configurations and operations are first
Same as the embodiment.
【００３０】従って、本実施例では、第１実施例と同じ
効果を得ることができるが、可動部１２の作動を従来の
鉗子と同じ構成をとるため操作性が向上する。またプロ
ーブ４の内腔に作動棒４３を挿入しているため、プロー
ブ４の細径化が実現される。また 根元部４１、ピン４
２、摺動チューブ４６等に使用している摺動部材のため
に発熱、異音など防止できる。Therefore, in this embodiment, the same effect as that of the first embodiment can be obtained, but since the operation of the movable portion 12 has the same structure as the conventional forceps, the operability is improved. Further, since the actuation rod 43 is inserted in the inner cavity of the probe 4, the diameter of the probe 4 can be reduced. Also, the root portion 41 and the pin 4
2. The sliding member used for the sliding tube 46 and the like can prevent heat generation and abnormal noise.
【００３１】図６ないし図９は本発明の第４実施例に係
わり、図６は超音波切開凝固装置のプローブの構成を示
す分解斜視図、図７は図６のプローブを有する超音波切
開凝固装置の先端の構成を示す断面図、図８は図７の超
音波切開凝固装置の先端部分の作用を説明する説明図、
図９は図８のＡ−Ａ線断面を示す断面図である。6 to 9 relate to a fourth embodiment of the present invention, FIG. 6 is an exploded perspective view showing the structure of a probe of an ultrasonic incision coagulation apparatus, and FIG. 7 is an ultrasonic incision coagulation having the probe of FIG. Sectional drawing which shows the structure of the front-end | tip of an apparatus, FIG. 8 is explanatory drawing explaining the effect | action of the front-end | tip part of the ultrasonic dissection-coagulation apparatus of FIG.
9 is a cross-sectional view showing a cross section taken along the line AA of FIG.
【００３２】図６及びプローブ４の先端断面である図７
に示すように、プローブ４の先端には組織を切除、凝固
するための固定刃を構成する振動伝達部１１が設けら
れ、振動伝達部１１に対向する可動刃を構成する可動部
１２が設けられている。そして、振動伝達部１１と可動
部１２とは巻きバネ５１を介して開閉する構成になって
いる。可動部１２及び巻きバネ５１は金属あるいは樹脂
等で形成されたピン５２によりフッ素樹脂等などの摺動
部材で形成されたベース５３に回転可能に固定されてお
り、ベース５３にはプローブ４との連結部５４が設けら
れ、連結部５４はプローブ４の細径部５５に固定するこ
とができるようになっている。連結部５４とプローブ４
の細径部５５との固定方法は、スナップフィット方式や
ネジ固定プローブを分割して挟み込む方法等がある。ま
た、プローブ４の細径部５５には平面部５６が形成され
ており、可動部１２と振動伝達部１１との位置固定がで
きるようになっている。FIG. 6 and FIG. 7 which is a cross section of the tip of the probe 4.
As shown in FIG. 3, the tip of the probe 4 is provided with a vibration transmitting portion 11 that constitutes a fixed blade for cutting and coagulating tissue, and a movable portion 12 that constitutes a movable blade facing the vibration transmitting portion 11 is provided. ing. The vibration transmission unit 11 and the movable unit 12 are configured to open and close via the winding spring 51. The movable portion 12 and the winding spring 51 are rotatably fixed to a base 53 formed of a sliding member such as fluororesin by a pin 52 formed of metal or resin, and the base 53 and the probe 4 are fixed to the base 53. A connecting portion 54 is provided, and the connecting portion 54 can be fixed to the small diameter portion 55 of the probe 4. Connecting part 54 and probe 4
The fixing method with the small-diameter portion 55 includes a snap-fit method and a method in which a screw fixing probe is divided and sandwiched. Further, a flat surface portion 56 is formed on the small diameter portion 55 of the probe 4, so that the movable portion 12 and the vibration transmitting portion 11 can be fixed in position.
【００３３】プローブ４の外周には、可動部１２を開閉
させるための内シース５７が設けられており、その先端
にはフッ素樹脂等の摺動部材で作られた摺動部５８が設
けられている。また、摺動部５８には当接部５９が設け
られており、可動部１２に設けられた作用部６０に当た
るようになっている。なお、フッ素樹脂等の摺動部材で
作られた摺動部５８に代わりにプローブ４に接する部分
にフッ素樹脂コーティングを施して構成しても良い。An inner sheath 57 for opening and closing the movable portion 12 is provided on the outer circumference of the probe 4, and a sliding portion 58 made of a sliding member such as fluororesin is provided at the tip thereof. There is. Further, the sliding portion 58 is provided with an abutting portion 59, which abuts on the action portion 60 provided on the movable portion 12. Instead of the sliding portion 58 made of a sliding member such as a fluororesin, a portion contacting with the probe 4 may be coated with a fluororesin.
【００３４】次に、このように構成された本実施例の作
用について説明する。Next, the operation of this embodiment thus constructed will be described.
【００３５】図８及び図８のＡ−Ａ断面である図９に示
すように、操作部３を操作することにより内シース５７
が軸方向に前後する。内シース５７が後方に動いた場
合、当接部５９が作用部６０に当たり、ピン５２を中心
に可動部１２を回転させ閉じることとなる。また、内シ
ース５７が前方に動くと可動部１２は巻きバネ５１の力
で再び開く。グリップ部２内部の超音波振動子より発生
した超音波振動はプローブ４に伝わり振動伝達部１１に
伝達される。可動部１２が閉したとき、可動部１２と振
動伝達部１１との間に挟まれた組織は振動伝達部１１が
超音波振動することにより発生する摩擦熱により，焼灼
される。そして、焼灼の間、組織は可動部１２によって
挟まれているため滑り落ちることはなく、確実に焼灼さ
れる。As shown in FIGS. 8 and 9 which is an AA cross section of FIG. 8, the inner sheath 57 is operated by operating the operating portion 3.
Goes back and forth in the axial direction. When the inner sheath 57 moves rearward, the contact portion 59 contacts the acting portion 60, and the movable portion 12 is rotated around the pin 52 to close it. When the inner sheath 57 moves forward, the movable portion 12 is reopened by the force of the winding spring 51. Ultrasonic vibration generated from the ultrasonic transducer inside the grip portion 2 is transmitted to the probe 4 and transmitted to the vibration transmission portion 11. When the movable part 12 is closed, the tissue sandwiched between the movable part 12 and the vibration transmitting part 11 is cauterized by the frictional heat generated by the ultrasonic vibration of the vibration transmitting part 11. Further, during cauterization, the tissue is sandwiched by the movable portion 12 and does not slip off, so that the tissue is cauterized reliably.
【００３６】このように本実施例によれば、プローブ４
に伝達された超音波は振動伝達部１１に伝達されるた
め、プローブ４に接触しているものとの間では超音波振
動による摩擦熱が発生することとなるが、プローブ４と
接触している部分は摺動部材で形成されたベース５３の
みであり、摂動による摩擦熱は発生しにくい。そのため
正常組織に熱の影響を与えることはない。また、プロー
ブ４が削れるなどの不具合もなくなり、耐性が向上す
る。さらに、振動による金属同士の接触による異音の発
生の防止効果もある。また、フッ素樹脂コーティングな
どを使用すればさらに小型化、簡素化などを図ることが
可能となる。ベース５３により内シース５７とプローブ
４の位置決めをするためプローブ４と内シース５７との
接触を防止し発熱の防止、耐久性の向上ができる。As described above, according to this embodiment, the probe 4
Since the ultrasonic wave transmitted to the probe 4 is transmitted to the vibration transmitter 11, frictional heat due to ultrasonic vibration is generated between the ultrasonic wave and the object in contact with the probe 4, but the ultrasonic wave is in contact with the probe 4. The part is only the base 53 formed of a sliding member, and frictional heat due to perturbation is unlikely to be generated. Therefore, heat does not affect the normal tissue. Further, the problem that the probe 4 is scraped off is eliminated, and the resistance is improved. Further, it also has an effect of preventing generation of abnormal noise due to contact between metals due to vibration. Further, if a fluororesin coating or the like is used, it is possible to further reduce the size and simplify. Since the inner sheath 57 and the probe 4 are positioned by the base 53, contact between the probe 4 and the inner sheath 57 can be prevented, heat generation can be prevented, and durability can be improved.
【００３７】なお、巻きバネ１３を使用することによ
り、可動部１２の開き角を大きくとることができ、さら
に先端部の開閉部を小型化でき、また開閉動作の耐久性
をアップできる。また、内シース５７を後方に移動して
可動部１２を閉じる機構なため、プローブ４を操作部３
のハンドピースに固定した後、シース５を取り付けるこ
とができるため、組立・分解が容易となる。また構造が
簡単なため洗條性が向上し、操作部の機構も簡素化さ
れ、可動部１２を閉じた時の把持範囲が小さくなること
がない。By using the winding spring 13, the opening angle of the movable portion 12 can be increased, the opening / closing portion at the tip portion can be downsized, and the durability of the opening / closing operation can be improved. Further, since the inner sheath 57 is moved backward to close the movable portion 12, the probe 4 is attached to the operation portion 3.
Since the sheath 5 can be attached after being fixed to the handpiece, the assembly / disassembly becomes easy. Further, since the structure is simple, the washability is improved, the mechanism of the operation portion is simplified, and the grip range when the movable portion 12 is closed is not reduced.
【００３８】次に、本発明の第５実施例について説明す
る、図１０は本発明の第５実施例に係るプローブの先端
の構成を示す構成図である。Next, a fifth embodiment of the present invention will be described. FIG. 10 is a structural diagram showing the structure of the tip of a probe according to the fifth embodiment of the present invention.
【００３９】本実施例の構成は基本的には第１実施例と
同じであるが、図１０に示すように、摺動チューブ７１
で被覆された作動棒７２により可動部１２を開閉するリ
ンク機構である。２つのピン７３、７４で固定する摺動
部材でできたベース７５は、プローブ４に接続されてお
り、ベース７５の外周部がシース５の内周部と嵌合され
ている。その他の構成、作用は第１実施例と同じであ
る。The structure of this embodiment is basically the same as that of the first embodiment, but as shown in FIG.
It is a link mechanism that opens and closes the movable portion 12 by the operating rod 72 covered with. A base 75 made of a sliding member fixed by two pins 73 and 74 is connected to the probe 4, and an outer peripheral portion of the base 75 is fitted to an inner peripheral portion of the sheath 5. Other configurations and operations are the same as those in the first embodiment.
【００４０】このように本実施例では、基本的には第１
実施例と同じ効果を有するが、作動棒７２がプローブ４
内部に位置しないため洗浄時に分解する必要性がない。
また作動棒７２がプローブ４と接触する可能性が低いた
め、異音発生・発熱・疲労破壊等を防止することができ
る。Thus, in this embodiment, basically the first
It has the same effect as the embodiment, but the actuation rod 72 has the probe 4
Since it is not located inside, there is no need to disassemble during cleaning.
Further, since the operating rod 72 is unlikely to come into contact with the probe 4, it is possible to prevent abnormal noise, heat generation, fatigue damage, and the like.
【００４１】［付記］ （付記項１） 後端部の超音波発振源に連結された超音
波プローブに超音波振動を伝達して生体組織を切除ある
いは凝固する超音波切開凝固装置において、前記超音波
プローブの先端側に配置されて、前記生体組織を把持ま
たは切除する際の固定刃を構成する振動伝達部と、前記
振動伝達部に対向して前記振動伝達部に配設され、前記
生体組織を把持または切除する際の可動刃を構成する可
動部と、前記可動部と前記振動伝達部とを連結する連結
部材と、前記可動部を前記振動伝達部に対して開閉動作
させる開閉手段とを備え、前記連結部材は、少なくとも
前記振動伝達部との接触部分を摺動部材で形成すること
を特徴とする超音波切開凝固装置。[Additional remarks] (Additional remark 1) In the ultrasonic cutting coagulation apparatus for excising or coagulating living tissue by transmitting ultrasonic vibrations to an ultrasonic probe connected to an ultrasonic oscillating source at the rear end, A vibration transmitting portion that is disposed on the tip side of the sound wave probe and that constitutes a fixed blade when gripping or excising the biological tissue, and is disposed in the vibration transmitting portion facing the vibration transmitting portion. A movable part that constitutes a movable blade when gripping or excising a body, a connecting member that connects the movable part and the vibration transmitting part, and an opening / closing means that opens and closes the movable part with respect to the vibration transmitting part. The ultrasonic cutting and coagulating apparatus, wherein the connecting member has at least a contact portion with the vibration transmitting portion formed of a sliding member.
【００４２】（付記項２） 前記連結部材は、前記振動
伝達部と着脱可能であることを特徴とする付記項１に記
載の超音波切開凝固装置。(Additional Item 2) The ultrasonic cutting and coagulating apparatus according to Additional Item 1, wherein the connecting member is detachable from the vibration transmitting portion.
【００４３】（付記項３） 前記開閉手段は、少なくと
も前記振動伝達部との接触部分を摺動部材で形成するこ
とを特徴とする付記項１に記載の超音波切開凝固装置。(Additional Item 3) The ultrasonic cutting and coagulating apparatus according to Additional Item 1, wherein the opening / closing means forms at least a contact portion with the vibration transmitting portion by a sliding member.
【００４４】（付記項４） 前記開閉手段は、前記超音
波プローブを覆うシースであることを特徴とする付記項
１に記載の超音波切開凝固装置。(Additional Item 4) The ultrasonic cutting and coagulating apparatus according to Additional Item 1, wherein the opening / closing means is a sheath that covers the ultrasonic probe.
【００４５】（付記項５） 前記開閉手段は、前記超音
波プローブの内部を挿通する作動棒であることを特徴と
する付記項１に記載の超音波切開凝固装置。(Additional Item 5) The ultrasonic cutting and coagulating apparatus according to Additional Item 1, wherein the opening / closing means is an operating rod inserted through the inside of the ultrasonic probe.
【００４６】（付記項６） 前記開閉手段は、前記超音
波プローブの外部に設けられた作動棒であることを特徴
とする付記項１に記載の超音波切開凝固装置。(Additional Item 6) The ultrasonic cutting and coagulating apparatus according to Additional Item 1, wherein the opening / closing means is an actuating rod provided outside the ultrasonic probe.
【００４７】（付記項７） 前記連結部材は、全体を摺
動部材で形成されることを特徴とする付記項１に記載の
超音波切開凝固装置。(Additional Item 7) The ultrasonic cutting and coagulating apparatus according to Additional Item 1, wherein the connecting member is entirely formed of a sliding member.
【００４８】（付記項８） 前記連結部材は、外表面が
摺動部材で被覆されていることを特徴とする付記項１に
記載の超音波切開凝固装置。(Additional Item 8) The ultrasonic cutting and coagulating apparatus according to Additional Item 1, wherein the outer surface of the connecting member is covered with a sliding member.
【００４９】（付記項９） 前記作動棒は、外表面が摺
動部材で被覆されていることを特徴とする付記項５また
は６に記載の超音波切開凝固装置。(Additional Item 9) The ultrasonic cutting and coagulating apparatus according to Additional Item 5 or 6, wherein the outer surface of the actuation rod is covered with a sliding member.
【００５０】（付記項１０） 前記超音波プローブは、
前記連結部材を連結するための接続部を備えていること
を特徴とする付記項１に記載の超音波切開凝固装置。(Additional Item 10) The ultrasonic probe is
The ultrasonic dissection and coagulation apparatus according to appendix 1, further comprising a connecting portion for connecting the connecting member.
【００５１】（付記項１１） 前記接続部は、前記超音
波プローブの外径より小さいことを特徴とする付記項１
０に記載の超音波切開凝固装置。(Additional Item 11) The additional item 1 is characterized in that the connecting portion is smaller than the outer diameter of the ultrasonic probe.
The ultrasonic dissection coagulator according to 0.
【００５２】[0052]
【発明の効果】以上説明したように本発明の超音波切開
凝固装置によれば、連結部材の少なくとも振動伝達部と
の接触部分を摺動部材で形成しているので、超音波振動
による強度が十分確保すると共に、プローブの摩耗、発
熱、異音の発生など無く、操作性及び安全性を向上させ
ることできるという効果がある。As described above, according to the ultrasonic cutting and coagulating apparatus of the present invention, since at least the contact portion of the connecting member with the vibration transmitting portion is formed by the sliding member, the strength due to the ultrasonic vibration is increased. There is an effect that the operability and safety can be improved while the probe is sufficiently secured, and the probe is not worn, generates heat, or causes abnormal noise.
【図１】本発明の第１実施例に係る超音波切開凝固装置
の概略の構成を示す構成図FIG. 1 is a configuration diagram showing a schematic configuration of an ultrasonic incision coagulation apparatus according to a first embodiment of the present invention.
【図２】図１のプローブの構成を示す分解斜視図FIG. 2 is an exploded perspective view showing the configuration of the probe shown in FIG.
【図３】図１の超音波切開凝固装置の先端断面を示す断
面図FIG. 3 is a cross-sectional view showing a tip cross-section of the ultrasonic incision coagulation apparatus in FIG.
【図４】本発明の第２実施例に係るプローブの先端の構
成を示す構成図FIG. 4 is a configuration diagram showing a configuration of a tip of a probe according to a second embodiment of the present invention.
【図５】本発明の第３実施例に係るプローブの先端の構
成を示す構成図FIG. 5 is a configuration diagram showing a configuration of a tip of a probe according to a third embodiment of the present invention.
【図６】本発明の第４実施例に係る超音波切開凝固装置
のプローブの構成を示す分解斜視図FIG. 6 is an exploded perspective view showing a configuration of a probe of an ultrasonic incision coagulation apparatus according to a fourth embodiment of the present invention.
【図７】図６のプローブを有する超音波切開凝固装置の
先端の構成を示す断面図FIG. 7 is a cross-sectional view showing the configuration of the tip of an ultrasonic incision coagulator having the probe of FIG.
【図８】図７の超音波切開凝固装置の先端部分の作用を
説明する説明図8 is an explanatory view for explaining the action of the tip portion of the ultrasonic dissection and coagulation device in FIG. 7. FIG.
【図９】図８のＡ−Ａ線断面を示す断面図9 is a cross-sectional view showing a cross section taken along line AA of FIG.
【図１０】本発明の第５実施例に係るプローブの先端の
構成を示す構成図FIG. 10 is a configuration diagram showing a configuration of a tip of a probe according to a fifth embodiment of the present invention.
１…超音波切開凝固装置 ２…グリップ部 ３…操作部 ３ａ…ハンドピース ４…超音波プローブ ５…シース １１…振動伝達部 １２…可動部 １３…弾性部材 １４…連結部 １５…細径部 １６…筒状部 １７…ワッシャ部 １８…平面部 １９…ネジ部 ２０…内シース ２１…摺動部 DESCRIPTION OF SYMBOLS 1 ... Ultrasonic incision coagulator 2 ... Grip part 3 ... Operation part 3a ... Handpiece 4 ... Ultrasonic probe 5 ... Sheath 11 ... Vibration transmission part 12 ... Movable part 13 ... Elastic member 14 ... Connection part 15 ... Small diameter part 16 ... Cylindrical part 17 ... Washer part 18 ... Flat part 19 ... Screw part 20 ... Inner sheath 21 ... Sliding part
Claims (1)
波プローブに超音波振動を伝達して生体組織を切除ある
いは凝固する超音波切開凝固装置において、 前記超音波プローブの先端側に配置されて、前記生体組
織を把持または切除する際の固定刃を構成する振動伝達
部と、 前記振動伝達部に対向して前記振動伝達部に配設され、
前記生体組織を把持または切除する際の可動刃を構成す
る可動部と、 前記可動部と前記振動伝達部とを連結する連結部材と、 前記可動部を前記振動伝達部に対して開閉動作させる開
閉手段とを備え、 前記連結部材は、少なくとも前記振動伝達部との接触部
分を摺動部材で形成することを特徴とする超音波切開凝
固装置。1. An ultrasonic dissection and coagulation apparatus for excising or coagulating living tissue by transmitting ultrasonic vibration to an ultrasonic probe connected to an ultrasonic oscillation source at a rear end of the ultrasonic probe, wherein the distal end of the ultrasonic probe is provided. And a vibration transmission part that constitutes a fixed blade when gripping or excising the biological tissue, and is disposed in the vibration transmission part so as to face the vibration transmission part.
A movable part that constitutes a movable blade when grasping or excising the biological tissue, a connecting member that connects the movable part and the vibration transmitting part, and an opening / closing operation that opens and closes the movable part with respect to the vibration transmitting part. Means, wherein the connecting member forms at least a contact portion with the vibration transmitting portion by a sliding member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08147095A JP3841459B2 (en) | 1995-04-06 | 1995-04-06 | Ultrasonic incision coagulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08147095A JP3841459B2 (en) | 1995-04-06 | 1995-04-06 | Ultrasonic incision coagulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08275952A true JPH08275952A (en) | 1996-10-22 |
| JP3841459B2 JP3841459B2 (en) | 2006-11-01 |
Family
ID=13747298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP08147095A Expired - Fee Related JP3841459B2 (en) | 1995-04-06 | 1995-04-06 | Ultrasonic incision coagulator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3841459B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11113922A (en) * | 1997-10-15 | 1999-04-27 | Olympus Optical Co Ltd | Ultrasonic treating tool |
| US5954746A (en) * | 1997-10-09 | 1999-09-21 | Ethicon Endo-Surgery, Inc. | Dual cam trigger for a surgical instrument |
| JP2000126198A (en) * | 1998-10-29 | 2000-05-09 | Olympus Optical Co Ltd | Ultrasonic treatment tool |
| EP1256323A2 (en) | 2001-05-04 | 2002-11-13 | Ethicon Endo-Surgery | Easily detachable ultrasonic clamping device |
| US6497715B2 (en) * | 2000-11-07 | 2002-12-24 | Miwatec Incorporated | Ultrasonic hand piece and ultrasonic horn for use with the same |
-
1995
- 1995-04-06 JP JP08147095A patent/JP3841459B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5954746A (en) * | 1997-10-09 | 1999-09-21 | Ethicon Endo-Surgery, Inc. | Dual cam trigger for a surgical instrument |
| US6443968B1 (en) | 1997-10-09 | 2002-09-03 | Ethicon Endo-Surgery, Inc. | Dual cam trigger for a surgical instrument |
| JPH11113922A (en) * | 1997-10-15 | 1999-04-27 | Olympus Optical Co Ltd | Ultrasonic treating tool |
| JP2000126198A (en) * | 1998-10-29 | 2000-05-09 | Olympus Optical Co Ltd | Ultrasonic treatment tool |
| US6497715B2 (en) * | 2000-11-07 | 2002-12-24 | Miwatec Incorporated | Ultrasonic hand piece and ultrasonic horn for use with the same |
| EP1256323A2 (en) | 2001-05-04 | 2002-11-13 | Ethicon Endo-Surgery | Easily detachable ultrasonic clamping device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3841459B2 (en) | 2006-11-01 |
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