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DE20021619U1 - Surgical hand tool, in particular ultrasound scalpel - Google Patents

Surgical hand tool, in particular ultrasound scalpel

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Publication number
DE20021619U1
DE20021619U1 DE20021619U DE20021619U DE20021619U1 DE 20021619 U1 DE20021619 U1 DE 20021619U1 DE 20021619 U DE20021619 U DE 20021619U DE 20021619 U DE20021619 U DE 20021619U DE 20021619 U1 DE20021619 U1 DE 20021619U1
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DE
Germany
Prior art keywords
handpiece
hand tool
surgical hand
tool according
instrument
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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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DE20021619U
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German (de)
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NEUMANN ANNE KATHRIN
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NEUMANN ANNE KATHRIN
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Priority to DE20021619U priority Critical patent/DE20021619U1/en
Publication of DE20021619U1 publication Critical patent/DE20021619U1/en
Anticipated expiration legal-status Critical
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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods
    • A61B17/32Surgical cutting instruments
    • A61B17/320068Surgical cutting instruments using mechanical vibrations, e.g. ultrasonic
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods
    • A61B2017/0042Surgical instruments, devices or methods with special provisions for gripping
    • A61B2017/00424Surgical instruments, devices or methods with special provisions for gripping ergonomic, e.g. fitting in fist
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods
    • A61B2017/0042Surgical instruments, devices or methods with special provisions for gripping
    • A61B2017/00455Orientation indicators, e.g. recess on the handle
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods
    • A61B2017/0046Surgical instruments, devices or methods with a releasable handle; with handle and operating part separable
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods
    • A61B17/28Surgical forceps
    • A61B17/29Forceps for use in minimally invasive surgery
    • A61B2017/2926Details of heads or jaws
    • A61B2017/2927Details of heads or jaws the angular position of the head being adjustable with respect to the shaft
    • A61B2017/2929Details of heads or jaws the angular position of the head being adjustable with respect to the shaft with a head rotatable about the longitudinal axis of the shaft

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  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Mechanical Engineering (AREA)
  • Biomedical Technology (AREA)
  • Dentistry (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)

Description

15179/mj/no15179/mj/no

GebrauchsmusteranmeldungUtility model application

Frau Anne-Kathrin Neumann, Engeweg 10, 26605 AurichMrs Anne-Kathrin Neumann, Engeweg 10, 26605 Aurich

Chirurgisches Handwerkzeug, insbesondere Ultraschall-SkalpellSurgical hand tools, especially ultrasonic scalpels

Die Erfindung betrifft ein chirurgisches Handwerkzeug, insbesondere ein Ultraschall-Skalpell, mit einem Handstück, mit einem an dem Handstück angeordneten Instrumententräger, mit wenigstens einem Instrument und mit einer Steuerungseinrichtung für das Instrument, welche vom Handstück entfernt angeordnet ist und mit welcher das ·Handstück über wenigstens eine Verbindungsleitung verbunden ist.The invention relates to a surgical hand tool, in particular an ultrasonic scalpel, with a handpiece, with an instrument carrier arranged on the handpiece, with at least one instrument and with a control device for the instrument, which is arranged remotely from the handpiece and to which the handpiece is connected via at least one connecting line.

Ein chirurgisches Handwerkzeug wird insbesondere im klinischen Einsatz während der Durchführung von chirurgischen Operationen eingesetzt. Ein klassisches chirurgisches Handwerkzeug ist z. B. das Skalpell. Neben aus Metall gefertigten, klingenartigen Skalpellen ist bereits ein Ultraschall-Skalpell vorgeschlagen worden.A surgical hand tool is used in particular in clinical settings during surgical operations. A classic surgical hand tool is the scalpel. In addition to blade-like scalpels made of metal, an ultrasonic scalpel has already been proposed.

Das Ultraschall-Skalpell weist eine Steuerungseinrichtung auf, die beispielsweise eine Koffergröße aufweist und insbesondere auf einem Wagen auf dem Boden z. B. in einem Operationssaal abgestellt ist. Von dieserThe ultrasonic scalpel has a control device which is, for example, the size of a suitcase and is placed on a trolley on the floor, for example in an operating room.

Steuerungseinrichtung verläuft eine Verbindungsleitung zu einem Handstück, an dem über einen Instrumententräger das Instrument befestigt ist, mit dem tatsächlich der chirurgische Eingriff vorgenommen wird. Das Handstück dient dabei dem Führen des Instrumentes. Es wird von einem Chirurgen in die Hand genommen, um das Instrument dem Operationsherd anzunähern und an diesem verschiedene Operationsmaßnahmen durchzuführen. Ist das chirurgische Handwerkzeug als Ultraschallskalpell ausgebildet, ist in dem Handstück regelmäßig noch die piezoelektrische Keramik aufgenommen. Die Steuerungseinrichtung verbleibt an ihrem Ort, denn die Verbindungsleitung ermöglicht durch eine flexible Ausbildung als Kabel bzw. als Schlauch einen relativ unabhängigen Einsatz des Handstücks und des an ihm angeordneten Instrumentes.A connecting line runs from the control device to a handpiece, to which the instrument with which the surgical procedure is actually carried out is attached via an instrument carrier. The handpiece is used to guide the instrument. It is held by a surgeon in order to bring the instrument closer to the surgical site and to carry out various surgical procedures on it. If the surgical hand tool is designed as an ultrasonic scalpel, the piezoelectric ceramic is usually incorporated into the handpiece. The control device remains in place because the connecting line, thanks to its flexible design as a cable or hose, enables relatively independent use of the handpiece and the instrument attached to it.

Chirurgische Operationen können einen großen Zeitaufwand verursachen. Das Skalpell wird als universelles chirurgisches Handwerkzeug nahezu während des gesamten chirurgischen Eingriffes benötigt, so daß es im Verlauf einer lang andauernden Operation von dem Chirurgen häufig in die Hand genommen wird.Surgical operations can be very time-consuming. The scalpel is a universal surgical tool that is required for almost the entire surgical procedure, meaning that the surgeon will use it frequently during a long operation.

Die bisher bekannten Handstücke insbesondere von Ultraschall-Skalpellen sind im wesentlichen mit einem Pistolengriff bzw. mit einem Scherengriff versehen. Diese Griffe ermöglichen zwar eine Handhabung des Handstücks, jedoch wird durch die vorgesehenen Griffe eine Überdehnung des Handgelenkes verursacht. Insgesamt hat sich gezeigt, daß beiThe handpieces known to date, especially those of ultrasonic scalpels, are essentially equipped with a pistol grip or a scissor grip. These handles allow the handpiece to be handled, but the handles provided cause an overstretching of the wrist. Overall, it has been shown that

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einem längeren Gebrauch dieser bekannten Ultraschall-Skalpelle eine Ermüdung insbesondere der Arme des Chirurgen eintritt.Prolonged use of these well-known ultrasonic scalpels leads to fatigue, particularly of the surgeon's arms.

Der Erfindung liegt die Aufgabe zugrunde, ein chirurgisches Handwerkzeug der eingangs genannten Gattung aufzuzeigen, das durch den Chirurgen ermüdungsärmer zu bedienen ist.The invention is based on the object of providing a surgical hand tool of the type mentioned at the beginning, which can be operated with less fatigue by the surgeon.

Diese Aufgabe ist erfindungsgemäß dadurch gelöst, daß das Handstück des chirurgischen Handwerkzeuges im wesentlichen etwa zylinderförmig ausgebildet ist, wobei die Zylinderform über die LängserStreckung des Handstücks eine kontinuierlich ausgebildete Krümmung aufweist.This object is achieved according to the invention in that the handpiece of the surgical hand tool is essentially cylindrical in shape, wherein the cylindrical shape has a continuous curvature over the longitudinal extent of the handpiece.

Bei dem erfindungsgemäßen Handwerkzeug ist ein Pistolenbzw, ein Scherengriff nicht vorgesehen. Vielmehr ist das Handstück als kompaktes Bauteil ausgebildet, das die vorbeschriebene Form aufweist. Diese Form ermöglicht es, das Handstück in die Hand zu nehmen, ohne die Finger in einen Pistolen- oder Scherengriff einzuführen und dadurch eine Überdehnung des Handgelenkes zu verursachen. Die Krümmung des Handstücks ermöglicht eine Anschmiegung der Hand in ihrer natürlichen Ausprägung an das Handstück, wobei eine möglichst große Kontaktfläche zwischen der Oberfläche des Handstücks und der Oberfläche der Hand gewährleistet ist.The hand tool according to the invention does not have a pistol or scissor handle. Instead, the handpiece is designed as a compact component that has the shape described above. This shape makes it possible to hold the handpiece in the hand without inserting the fingers into a pistol or scissor handle and thereby causing overstretching of the wrist. The curvature of the handpiece allows the hand to nestle against the handpiece in its natural form, ensuring the largest possible contact area between the surface of the handpiece and the surface of the hand.

Der Instrumententräger ist vorzugsweise an einem freien Ende der etwa Zylinder form angeordnet. An dem dem Instrumententräger gegenüberliegenden freien Ende ist vorzugsweise eine Abrundung dieses freien Endes vorgesehen.The instrument carrier is preferably arranged at a free end of the approximately cylindrical shape. At the free end opposite the instrument carrier, this free end is preferably rounded.

Die erfindungsgemäße Formgestaltung des Handstücks ist ergonomisch. Sie ist für Links- und Rechtshänder gleichermaßen geeignet. Aufgrund der ausgebildeten Krümmung, die vorzugsweise gering ausgebildet ist, wird das Handgelenk eines Benutzers nicht überdehnt.The design of the handpiece according to the invention is ergonomic. It is equally suitable for left- and right-handed people. Due to the curvature, which is preferably slight, the user's wrist is not overstretched.

Das Handstück weist beispielsweise eine Form auf, die etwa der Form eines Hinterleibes einer Wespe entspricht. Das Handstück, das einer solchen Form entspricht, wird derart in die Hand genommen, daß bei einer waagerechten Haltung die Krümmungsinnenseite einem Erdboden zugekehrt ist.The handpiece, for example, has a shape that roughly corresponds to the shape of a wasp's abdomen. The handpiece, which corresponds to such a shape, is held in the hand in such a way that, when held horizontally, the inside of the curve faces the ground.

Nach einer Weiterbildung der Erfindung ist vorgesehen, daß das Handstück auf einer Mantelseite des Zylinders einen flächigen Vorsprung aufweist, der eine Fingerauflage ausbildet. Durch einen derartigen Vorsprung wird die Haptik und die Ergonomie des Handstücks weiter verbessert. Die Auflage schafft eine definierte Auflagefläche für Finger einer Hand, die das chirurgische Handwerkzeug ergreift. Auf die Auflage sind beispielsweise der Mittelfinger und der Ringfinger auflegbar, auf einen der Auflage zugeordneten weiteren Bereich ist der Zeigefinger auflegbar. Außerhalb der Fingerauflage kann für den Zeigefinger eine Kuhle ausgebildet sein.According to a further development of the invention, the handpiece has a flat projection on one side of the cylinder, which forms a finger rest. Such a projection further improves the feel and ergonomics of the handpiece. The rest creates a defined resting surface for the fingers of a hand that is holding the surgical hand tool. The middle finger and ring finger, for example, can be placed on the rest, and the index finger can be placed on a further area assigned to the rest. A hollow can be formed outside the finger rest for the index finger.

Der Durchmesser des Handstücks ist so bemessen, daß die Finger bei einem Umfassen des Handstücks in den entsprechenden Oberflächenabschnitten zur Auflage kommen.The diameter of the handpiece is dimensioned in such a way that the fingers rest on the corresponding surface sections when grasping the handpiece.

Zum Verbinden eines Instrumentes mit dem Handstück ist nach einer Weiterbildung der Erfindung vorgesehen, daß der Instrumententräger einen Bajonett-Verschluß umfaßt, und daß das Instrument einen zum Bajonett-Verschluß korrespondierenden Bajonett-Einsatz aufweist. Bajonett-Verschluß und Bajonett-Einsatz können auf einfache und schnelle Weise miteinander in haltende Wirkverbindung gebracht werden, so daß eine haltende Wirkverbindung zwischen Handstück und Instrument über den Instrumententräger erreichbar ist. Bajonett-Verschluß und Bajonett-Einsatz ermöglichen dabei insbesondere ein schnelles Austauschen eines Instrumentes gegen ein anderes Instrument. Diese Instrumente können dabei beispielsweise Einweg instrumente sein oder sie können als Mehrweginstrumente ausgebildet sein, die sterilisierbar sind.In order to connect an instrument to the handpiece, according to a further development of the invention, the instrument carrier comprises a bayonet lock and the instrument has a bayonet insert corresponding to the bayonet lock. The bayonet lock and bayonet insert can be brought into a holding connection with one another in a simple and quick manner, so that a holding connection between the handpiece and the instrument can be achieved via the instrument carrier. The bayonet lock and bayonet insert enable one instrument to be exchanged for another instrument quickly. These instruments can be disposable instruments, for example, or they can be designed as reusable instruments that can be sterilized.

Der Instrumententräger weist vorzugsweise eine um die Längsachse des Handstücks drehbare Aufnahmeeinrichtung für ein Instrument auf. Diese Aufnahmeeinrichtung umfaßt beispielsweise einen Stellring, der um die gekrümmte Längsmittelachse des Handstücks drehbar gelagert ist. Mit dem Stellring wird das eingesetzte Instrument in haltende Wirkverbindung gebracht. Eine Drehung des Stellringes bewirkt aufgrund dieser Verbindung eine Drehung des Instrumentes um seine Längsachse. Soll das Instrument in verschiedenen Drehpositionen eingesetzt werden, so ist vorteilhaft nicht mehr das gesamte Handwerkzeug zu drehen. Es ist ausreichend, mittels des Stellringes eine Drehung des InstrumentesThe instrument carrier preferably has a holding device for an instrument that can be rotated about the longitudinal axis of the handpiece. This holding device comprises, for example, an adjusting ring that is mounted so that it can rotate about the curved longitudinal center axis of the handpiece. The inserted instrument is brought into a holding connection with the adjusting ring. Due to this connection, a rotation of the adjusting ring causes the instrument to rotate about its longitudinal axis. If the instrument is to be used in different rotational positions, it is advantageous not to rotate the entire hand tool. It is sufficient to rotate the instrument using the adjusting ring.

vorzunehmen. Das Handstück wird dabei nicht mitgedreht, so daß es seiner vorteilhaften Lage innerhalb der Hand des Benutzers verbleibt.The handpiece is not rotated, so that it remains in its advantageous position within the user's hand.

In einer besonders vorteilhaften Ausbildung ist noch vorgesehen, daß der Stellring in voneinander verschiedene Arbeitspositionen bringbar ist, in denen verschiedene Einflußnahmen auf das Instrument erfolgen. Beispielsweise kann der Stellring in eine Position gebracht werden, in der nicht das gesamte Instrument um seine Längsachse gedreht wird, sondern nur einige Teile des Instrumentes um die Längsachse des Instrumentes und dadurch um andere Teile des Instrumentes gedreht werden. So können beispielsweise bei einem Ultraschall-Skalpell verschiedene Zuordnungen einer Klemmbranche zu einer Klinge eingestellt werden. Die Klemmbranche und eine ihr zugeordnete Führungshülse können mittels des Stellringes in verschiedene Winkellagen bezüglich einer feststehenden Klinge gebracht werden, um beispielsweise verschiedene Koagulationsmodi einzustellen.In a particularly advantageous embodiment, it is also provided that the adjusting ring can be brought into different working positions in which different influences on the instrument can be exerted. For example, the adjusting ring can be brought into a position in which the entire instrument is not rotated about its longitudinal axis, but only some parts of the instrument are rotated about the longitudinal axis of the instrument and thus about other parts of the instrument. For example, in an ultrasonic scalpel, different assignments of a clamping branch to a blade can be set. The clamping branch and a guide sleeve assigned to it can be brought into different angular positions with respect to a fixed blade by means of the adjusting ring in order, for example, to set different coagulation modes.

Der Stellring ist in die voneinander verschiedenen Arbeitspositionen vorzugsweise durch sein Verschieben entlang der verlängerten Längsachse des Handstücks bringbar. Dadurch ist zunächst eine einfache Verstellmöglichkeit gegeben. Konstruktiv treten mit dem Stellring in den voneinander verschiedenen Schiebepositionen z. B. Vorsprünge in Eingriff oder aus dem Eingriff, so daß bestimmte Kräfte von demThe adjusting ring can be brought into the different working positions preferably by sliding it along the extended longitudinal axis of the handpiece. This initially provides a simple adjustment option. In terms of construction, projections, for example, engage or disengage with the adjusting ring in the different sliding positions, so that certain forces are transferred from the

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Stellring auf Teile des Instrumentes oder das Instrument insgesamt übertragbar sind.Adjusting ring can be transferred to parts of the instrument or the instrument as a whole.

Am Instrument ist vorzugsweise wenigstens ein Betätigungselement für sein Betätigen angeordnet. Dieses Betätigungselement ist beispielsweise als Hebel ausgebildet, mit dem eine Kraft auf ein beweglich gelagertes Bauteil des Instrumentes übertragbar ist. Vorzugsweise ist ein Hebelabschnitt in einer Betätigungsposition des Instrumentes in haltende Wirkverbindung mit dem Stellring bringbar. Dadurch wird mit dem Hebel in der Betätigungsposition der Stellring gehalten bzw. arretiert. Bei einer Betätigung des Betätigungselementes ist dadurch ausgeschlossen, daß mit dem Stellring eine Beeinflussung des Instrumentes durchgeführt wird, die bei einem Betätigen des Instrumentes nicht erwünscht ist.Preferably, at least one actuating element is arranged on the instrument for its actuation. This actuating element is designed, for example, as a lever with which a force can be transmitted to a movably mounted component of the instrument. Preferably, a lever section can be brought into a holding operative connection with the adjusting ring in an actuating position of the instrument. As a result, the adjusting ring is held or locked in the actuating position by the lever. When the actuating element is actuated, this prevents the adjusting ring from influencing the instrument in a way that is not desired when the instrument is actuated.

Zur konstruktiven Ausbildung ist vorzugsweise vorgesehen, daß der Hebelabschnitt drahtförmig ausgebildet ist, und daß in einem dem Hebelabschnitt zugeordneten Umfangsabschnitt des Stellringes wenigstens eine Einkerbung angeordnet ist. Der Hebelabschnitt steht dann in die Einkerbung vor und arretiert diese und den Stellring, wenn er in seiner Betätigungsposition befindlich ist. In dieser ist er beispielsweise um eine Achse geschwenkt worden, wobei während des Schwenkens der Hebelabschnitt in die Einkerbung bewegt ist.For structural design, it is preferably provided that the lever section is wire-shaped and that at least one notch is arranged in a peripheral section of the adjusting ring associated with the lever section. The lever section then projects into the notch and locks this and the adjusting ring when it is in its actuating position. In this position, it has been pivoted about an axis, for example, with the lever section being moved into the notch during pivoting.

Am Stellring sind vorzugsweise vier Einkerbungen vorgesehen, die auf dem Umfang des Stellringes zueinander umPreferably four notches are provided on the adjusting ring, which are spaced apart from each other on the circumference of the adjusting ring by

etwa 90° versetzt sind. Mit dem Betätigungselement kann somit der Stellring in vier voneinander verschiedenen Drehpositionen festgelegt werden, die vier verschiedenen Bearbeitungseinstellungen des chirurgischen Handwerkzeuges entsprechen.are offset by approximately 90°. The actuating element can thus be used to set the adjusting ring in four different rotational positions, which correspond to four different processing settings of the surgical hand tool.

Nach einer Weiterbildung der Erfindung ist vorgesehen, daß im Handstück wenigstens ein Betätigungsorgan für die Steuerungseinrichtung angeordnet ist. Durch diese Anordnung kann eine Betätigung, insbesondere ein Ein- und Ausschalten, der Steuerungseinrichtung direkt vom Handstück vorgenommen werden. Dadurch ist es vorteilhaft nicht erforderlich, einen Fußschalter oder dergleichen anderen Schalter vorzusehen, der sich im klinischen Betrieb als nachteilig erwiesen hat. Während ein Fußschalter, insbesondere bei seiner Anordnung unterhalb des Operationstisches, von einem Chirurg mühsam mit dem Fuß gesucht werden muß, ist ein unmittelbar im Handstück angeordnetes Betätigungsorgan für den Chirurgen ohne weiteres auffindbar und erreichbar.According to a further development of the invention, at least one actuating element for the control device is arranged in the handpiece. This arrangement allows the control device to be operated, in particular switched on and off, directly from the handpiece. This advantageously means that it is not necessary to provide a foot switch or similar other switch, which has proven to be disadvantageous in clinical operation. While a surgeon has to laboriously search for a foot switch with his foot, especially when it is arranged below the operating table, an actuating element arranged directly in the handpiece is easy for the surgeon to find and reach.

Vorzugsweise sind im Handstück zwei Betätigungsorgane im Abstand von etwa 2 cm zueinander auf der in Arbeitshaltung Oberseite des Handstücks angeordnet. Beide Betätigungsorgane auf der Oberseite des Handstücks können mit dem Daumen der das Handstück haltenden Hand betätigt werden. Durch die Betätigung mit ein und demselben Daumen ist sichergestellt, daß jeweils nur ein Betätigungsorgan betätigt wird. Da auch der Stellring vorzugsweise mit dem Daumen betätigt wird, ist zugleichPreferably, two actuating elements are arranged in the handpiece at a distance of approximately 2 cm from each other on the top of the handpiece when in the working position. Both actuating elements on the top of the handpiece can be actuated with the thumb of the hand holding the handpiece. By actuating with one and the same thumb, it is ensured that only one actuating element is actuated at a time. Since the adjusting ring is also preferably actuated with the thumb,

sichergestellt, daß eine gleichzeitige Betätigung des Stellringes sowie eines Betätigungsorgans ausgeschlossen ist.ensure that simultaneous actuation of the adjusting ring and an actuating element is excluded.

Zur weiteren Verbesserung .der Ergonomie sieht eine Weiterbildung der Erfindung vor, daß zwischen den beiden Betätigungsorganen in der Oberfläche des Handstücks eine Eindellung bzw. Abflachung angeordnet ist. Diese Eindellung bildet eine Ablagefläche für den Daumen aus, wenn dieser nicht gerade für die Beeinflussung des Stellringes oder der Betätigungsorgane eingesetzt wird.To further improve ergonomics, a further development of the invention provides for an indentation or flattening to be arranged in the surface of the handpiece between the two actuating elements. This indentation forms a resting surface for the thumb when it is not being used to influence the adjusting ring or the actuating elements.

Zur weiteren Ausbildung der Erfindung ist schließlich vorgesehen, daß jedes Betätigungsorgan als Drucktaster ausgebildet ist, der aus Silikon geformt ist. Ein aus Silikon ausgebildeter Drucktaster kann in der Oberfläche des Handstücks nahtlos angeordnet sein, so daß sich keine Schmutzfänger, Spalte oder dergleichen ausbilden. Beispielsweise kann vorgesehen sein, das Handstück zweischalig auszubilden, wobei ein von diesen Schalen umschlossener Hohlraum zumindestens abschnittsweise mit Silikon gefüllt ist. Den Drucktastern aus Silikon sind z. B. geeignete elektronische Schaltbauteile zugeordnet, die aufnehmende Druckkräfte in Schaltvorgänge umsetzt.Finally, to further develop the invention, it is provided that each actuating element is designed as a push button made of silicone. A push button made of silicone can be arranged seamlessly in the surface of the handpiece so that no dirt traps, gaps or the like are formed. For example, it can be provided that the handpiece is designed with two shells, with a cavity enclosed by these shells being filled with silicone at least in sections. The push buttons made of silicone are assigned, for example, suitable electronic switching components that convert the pressure forces received into switching processes.

Ein Ausführungsbeispiel der Erfindung, aus dem sich weitere erfinderische Merkmale ergeben, ist in der Zeichnung dargestellt. Es zeigen:An embodiment of the invention, from which further inventive features emerge, is shown in the drawing. They show:

Fig. 1 eine Seitenansicht eines Handstücks einesFig. 1 is a side view of a handpiece of a

chirurgischen Handwerkzeuges undsurgical hand tools and

Fig. 2 eine Draufsicht des Handstücks gemäß
Fig. 1.
Fig. 2 a top view of the handpiece according to
Fig.1.

Das Handstück 1 in Fig. 1 weist eine im wesentlichen zylinderförmige Bauform auf, die über die Längserstreckung des Handstücks 1 eine kontinuierlich ausgebildete Krümmung aufweist. An einem Ende des im wesentlichen zylinderförmigen Handstücks 1 ist ein Instrumententräger 2 angeordnet. Dieser trägt ein Instrument 3, das abgebrochen dargestellt ist.The handpiece 1 in Fig. 1 has a substantially cylindrical design which has a continuous curvature over the longitudinal extent of the handpiece 1. An instrument carrier 2 is arranged at one end of the substantially cylindrical handpiece 1. This carries an instrument 3 which is shown broken off.

An dem Ende des Handstücks 1, das dem Instrumententrager 2 abgekehrt ist, ist eine Verbindungsleitung 4 aus dem Handstück 1 heraus geführt. Sie führt zu einer nicht weiter dargestellten Steuerungseinrichtung z. B. für eine piezoelektrische Keramik.At the end of the handpiece 1 facing away from the instrument holder 2, a connecting line 4 is led out of the handpiece 1. It leads to a control device (not shown in more detail), e.g. for a piezoelectric ceramic.

Auf einer Seite des Handstücks 1 ist eine Eindellung 5 zur Auflage des Daumens einer das Handstück 1 haltenden Hand vorgesehen. Auf der Seite des Handstücks 1, die der Eindellung 5 gegenüberliegt, ist ein Vorsprung 6 angeordnet, durch den eine Fingerauflage ausgebildet ist.On one side of the handpiece 1, an indentation 5 is provided for resting the thumb of a hand holding the handpiece 1. On the side of the handpiece 1 opposite the indentation 5, a projection 6 is arranged, which forms a finger rest.

Die Eindellung 5 ist auch in Fig. 2 dargestellt. Der Eindellung 5 sind zwei Drucktaster 7 zugeordnet, die beidseitig der Eindellung 5 angeordnet sind. Jeder Drucktaster 7 ist etwa ellipsenförmig ausgebildet und vorzugsweise aus Silikon gefertigt.The indentation 5 is also shown in Fig. 2. The indentation 5 is assigned two push buttons 7, which are arranged on both sides of the indentation 5. Each push button 7 is approximately elliptical in shape and is preferably made of silicone.

Der Instrumententräger 2 umfaßt einen Stellring 8. Mit diesem Stellring 8 ist das Instrument 3 beeinflußbar, beispielsweise um die verlängerte Längsmittelachse des Handstücks 1 drehbar. In den Umfang des Stellringes 8 sind Einkerbungen 9 eingelassen. In eine derartige Einkerbung 9 ist ein Hebelabschnitt 10 eines Betätigungselementes 11 für das Instrument 3 vorstehbar. Das Betätigungselement 11 läuft in einen Abzug 12 aus, der z. B. mit dem Zeigefinger einer das Handstück 1 umfassenden Hand betätigbar ist.The instrument carrier 2 comprises an adjusting ring 8. The instrument 3 can be influenced with this adjusting ring 8, for example by rotating it around the extended longitudinal center axis of the handpiece 1. Notches 9 are let into the circumference of the adjusting ring 8. A lever section 10 of an actuating element 11 for the instrument 3 can be projected into such a notch 9. The actuating element 11 runs into a trigger 12, which can be actuated, for example, with the index finger of a hand grasping the handpiece 1.

Claims (17)

1. Chirurgisches Handwerkzeug, insbesondere Ultraschall- Skalpell, mit einem Handstück, mit einem an dem Handstück angeordneten Instrumententräger, mit wenigstens einem Instrument und mit einer Steuerungseinrichtung für das Instrument, welche vom Handstück entfernt angeordnet ist und mit welcher das Handstück über wenigstens eine Verbindungsleitung verbunden ist, dadurch gekennzeichnet, daß das Handstück (1) im wesentlichen etwa zylinderförmig ausgebildet ist, wobei die Zylinderform über die Längserstreckung des Handstücks (1) eine kontinuierlich ausgebildete Krümmung aufweist. 1. Surgical hand tool, in particular an ultrasonic scalpel, with a handpiece, with an instrument carrier arranged on the handpiece, with at least one instrument and with a control device for the instrument, which is arranged remote from the handpiece and to which the handpiece is connected via at least one connecting line, characterized in that the handpiece ( 1 ) is essentially cylindrical in shape, the cylindrical shape having a continuous curvature over the longitudinal extent of the handpiece ( 1 ). 2. Chirurgisches Handwerkzeug nach Anspruch 1, dadurch gekennzeichnet, daß das Handstück (1) eine Form aufweist, die etwa der Form des Hinterleibes einer Wespe entspricht. 2. Surgical hand tool according to claim 1, characterized in that the handpiece ( 1 ) has a shape which corresponds approximately to the shape of the abdomen of a wasp. 3. Chirurgisches Handwerkzeug nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß es auf einer Mantelseite des Zylinders einen flächigen Vorsprung (6) aufweist, der eine Fingerauflage ausbildet. 3. Surgical hand tool according to claim 1 or 2, characterized in that it has a flat projection ( 6 ) on a jacket side of the cylinder, which forms a finger rest. 4. Chirurgisches Handwerkzeug nach Anspruch 3, dadurch gekennzeichnet, daß der Vorsprung (6) in der Arbeitshalteposition des Handstücks (1) an der Unterseite desselben angeordnet ist. 4. Surgical hand tool according to claim 3, characterized in that the projection ( 6 ) is arranged on the underside of the handpiece ( 1 ) in the working holding position thereof. 5. Chirurgisches Handwerkzeug nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Instrumententräger (2) einen Bajonett-Verschluß umfaßt, und daß das Instrument (3) einen zum Bajonett-Verschluß korrespondierenden Bajonett-Einsatz aufweist. 5. Surgical hand tool according to one of the preceding claims, characterized in that the instrument carrier ( 2 ) comprises a bayonet closure, and that the instrument ( 3 ) has a bayonet insert corresponding to the bayonet closure. 6. Chirurgisches Handwerkzeug nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Instrumententräger (2) eine um die Längsachse des Handstücks (1) drehbare Aufnahmeeinrichtung für ein Instrument (3) aufweist. 6. Surgical hand tool according to one of the preceding claims, characterized in that the instrument carrier ( 2 ) has a receiving device for an instrument ( 3 ) which can be rotated about the longitudinal axis of the handpiece ( 1 ). 7. Chirurgisches Handwerkzeug nach Anspruch 6, dadurch gekennzeichnet, daß die Aufnahmeeinrichtung einen Stellring (8) umfaßt, der um die Längsmittelachse des Handstücks (1) drehbar gelagert ist. 7. Surgical hand tool according to claim 6, characterized in that the receiving device comprises an adjusting ring ( 8 ) which is rotatably mounted about the longitudinal central axis of the handpiece ( 1 ). 8. Chirurgisches Handwerkzeug nach Anspruch 7, dadurch gekennzeichnet, daß der Stellring (8) in voneinander verschiedene Arbeitspositionen bringbar ist, in denen verschiedene Einflußnahmen auf das Instrument (3) erfolgen. 8. Surgical hand tool according to claim 7, characterized in that the adjusting ring ( 8 ) can be brought into different working positions in which different influences on the instrument ( 3 ) take place. 9. Chirurgisches Handwerkzeug nach Anspruch 8, dadurch gekennzeichnet, daß der Stellring (8) in die verschiedenen Arbeitspositionen durch sein Verschieben entlang der verlängerten Längsachse des Handstücks (1) bringbar ist. 9. Surgical hand tool according to claim 8, characterized in that the adjusting ring ( 8 ) can be brought into the various working positions by its displacement along the extended longitudinal axis of the handpiece ( 1 ). 10. Chirurgisches Handwerkzeug nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß am Instrument (3) wenigstens ein Betätigungselement (11) für sein Betätigen angeordnet ist. 10. Surgical hand tool according to one of the preceding claims, characterized in that at least one actuating element ( 11 ) for its actuation is arranged on the instrument ( 3 ). 11. Chirurgisches Handwerkzeug nach Anspruch 10, dadurch gekennzeichnet, daß das Betätigungselement (11) wenigstens einen Hebel umfaßt, wobei ein Hebelabschnitt (10) in einer Betätigungsposition des Instrumentes (3) in haltende Wirkverbindung mit dem Stellring (8) tritt. 11. Surgical hand tool according to claim 10, characterized in that the actuating element ( 11 ) comprises at least one lever, wherein a lever section ( 10 ) in an actuating position of the instrument ( 3 ) comes into holding operative connection with the adjusting ring ( 8 ). 12. Chirurgisches Handwerkzeug nach Anspruch 11, dadurch gekennzeichnet, daß der Hebelabschnitt (10) drahtförmig ausgebildet ist und daß in einem dem Hebelabschnitt zugeordneten Umfangsabschnitt des Stellringes (8) wenigstens eine Einkerbung (9) angeordnet ist. 12. Surgical hand tool according to claim 11, characterized in that the lever section ( 10 ) is wire-shaped and that at least one notch ( 9 ) is arranged in a peripheral section of the adjusting ring ( 8 ) associated with the lever section. 13. Chirurgisches Handwerkzeug nach Anspruch 12, dadurch gekennzeichnet, daß im Stellring (8) vier Einkerbungen (9) vorgesehen sind, die auf dem Umfang des Stellringes (8) zueinander um etwa 90° versetzt sind. 13. Surgical hand tool according to claim 12, characterized in that four notches ( 9 ) are provided in the adjusting ring ( 8 ), which are offset from one another by approximately 90° on the circumference of the adjusting ring ( 8 ). 14. Chirurgisches Handwerkzeug nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß im Handstück (1) wenigstens ein Betätigungsorgan für die Steuerungseinrichtung angeordnet ist. 14. Surgical hand tool according to one of the preceding claims, characterized in that at least one actuating element for the control device is arranged in the handpiece ( 1 ). 15. Chirurgisches Handwerkzeug nach Anspruch 14, dadurch gekennzeichnet, daß im Handstück (1) zwei Betätigungsorgane im Abstand von etwa 2 cm zueinander auf der in Arbeitshaltung Oberseite des Handstücks (1) angeordnet sind. 15. Surgical hand tool according to claim 14, characterized in that in the handpiece ( 1 ) two actuating elements are arranged at a distance of approximately 2 cm from one another on the upper side of the handpiece ( 1 ) in the working position. 16. Chirurgisches Handwerkzeug nach Anspruch 15, dadurch gekennzeichnet, daß zwischen den beiden Betätigungsorganen in der Oberfläche des Handstücks (1) eine Eindellung (5) angeordnet ist. 16. Surgical hand tool according to claim 15, characterized in that an indentation ( 5 ) is arranged between the two actuating members in the surface of the handpiece ( 1 ). 17. Chirurgisches Handwerkzeug nach einem der Ansprüche 14 bis 16, dadurch gekennzeichnet, daß jedes Betätigungsorgan als Drucktaster (7) ausgebildet ist, der aus Silikon geformt ist. 17. Surgical hand tool according to one of claims 14 to 16, characterized in that each actuating member is designed as a push button ( 7 ) which is molded from silicone.
DE20021619U 2000-12-21 2000-12-21 Surgical hand tool, in particular ultrasound scalpel Expired - Lifetime DE20021619U1 (en)

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