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DE29623113U1 - Axial handle for surgical, especially endoscopic, instruments - Google Patents

Axial handle for surgical, especially endoscopic, instruments

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Publication number
DE29623113U1
DE29623113U1 DE29623113U DE29623113U DE29623113U1 DE 29623113 U1 DE29623113 U1 DE 29623113U1 DE 29623113 U DE29623113 U DE 29623113U DE 29623113 U DE29623113 U DE 29623113U DE 29623113 U1 DE29623113 U1 DE 29623113U1
Authority
DE
Germany
Prior art keywords
branches
locking devices
brought
adjusting device
handle
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.)
Expired - Lifetime
Application number
DE29623113U
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German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Olympus Winter and Ibe GmbH
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Olympus Winter and Ibe GmbH
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Publication date
Application filed by Olympus Winter and Ibe GmbH filed Critical Olympus Winter and Ibe GmbH
Priority to DE29623113U priority Critical patent/DE29623113U1/en
Priority to DE19739002A priority patent/DE19739002A1/en
Publication of DE29623113U1 publication Critical patent/DE29623113U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • A61B17/2909Handles
    • 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
    • A61B17/2909Handles
    • A61B2017/2912Handles transmission of forces to actuating rod or piston
    • A61B2017/2919Handles transmission of forces to actuating rod or piston details of linkages or pivot points
    • A61B2017/292Handles transmission of forces to actuating rod or piston details of linkages or pivot points connection of actuating rod to handle, e.g. ball end in recess
    • 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
    • A61B17/2909Handles
    • A61B2017/2912Handles transmission of forces to actuating rod or piston
    • A61B2017/2919Handles transmission of forces to actuating rod or piston details of linkages or pivot points
    • A61B2017/2922Handles transmission of forces to actuating rod or piston details of linkages or pivot points toggle linkages
    • 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
    • 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
    • A61B2017/2946Locking means

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

Description

N ta\OWIa52 Gehölzweg 20, D-22043 Hamburg Ihr Zeichen/Your Ref:N ta\OWIa52 Gehölzweg 20, D-22043 Hamburg Your Ref:

OLYMPUS WINTER & IBE GMBH
Kuehnstraße 61, 22045 Hamburg
OLYMPUS WINTER & IBE GMBH
Kuehnstrasse 61, 22045 Hamburg

Axialgriff für chirurgische, insbesondere
endoskopische Instrumente
Axial handle for surgical, especially
endoscopic instruments

Die Erfindung bezieht sich auf einen Axialgriff nach dem Oberbegriff des Anspruches 1.The invention relates to an axial handle according to the preamble of claim 1.

Gattungsgemäße Axialgriffe werden insbesondere bei endoskopischen Schaftinstrumenten eingesetzt. Wesentliches Merkmal ist, daß die Griffachse und die Achse des Schaftes fluchten. Ähnlich wie die bekannten seillich abstehenden Scherengriffe weisen auch Axialgriffe zwei relativ zueinander verschwenkbare Branchen auf, die bei Verschwenkung ein am distalen Ende des Schaftes angeordnetes Arbeitswerkzeug betätigen.Axial handles of this type are used in particular for endoscopic shaft instruments. The key feature is that the handle axis and the shaft axis are aligned. Similar to the well-known scissor handles that protrude like a rope, axial handles also have two branches that can be pivoted relative to one another and, when pivoted, actuate a working tool located at the distal end of the shaft.

Axialgriffe erleichtern die Handhabung insbesondere solcher Instrumente, die während des Gebrauchs häufig um ihre Achse verdreht werden, wie z.B. Nadelhalter etc.Axial handles facilitate the handling of instruments that are often rotated around their axis during use, such as needle holders, etc.

Die relativ zueinander verschwenkbaren Branchen lassen sich bei gattungsgemäßen Axialgriffen mit Riegeleinrichtungen in unterschiedlichen Verschwenkposilionen lösbar miteinander verriegeln. In aller Regel sind die Riegeleinrichtungen miteinander in Eingriff bringbare Rastelemente, deren Rastungen so ausgestaltet sind, daßThe branches that can be pivoted relative to one another can be releasably locked together in different pivot positions in the case of axial handles of the type with locking devices. As a rule, the locking devices are locking elements that can be brought into engagement with one another, the locking mechanisms of which are designed in such a way that

sich die Branchen ohne weitere Maßnahmen zusammendrücken lassen und nach Loslassen automatisch in der jeweils erreichten Relativposition gegen ein Auseinanderschwenken verriegelt sind.the branches can be pressed together without any further action and, once released, are automatically locked in the relative position reached to prevent them from swinging apart.

Für den Fall des oben beschriebenen Nadelhalter bedeutet dies, daß der Operateur die Branchen zunächst soweit zusammendrücken kann, bis die am distalen Ende des Schaftes betätigten Backen des Nadelgreifers eine Nadel fest und unter Spannung zwischen sich halten. Wird der Griff dann losgelassen, so bleiben die Griffbranchen in dieser Position gegeneinander verriegelt und die Nadel wird selbsttätig gehalten, wodurch der Operateur während des Nähvorganges entlastet wird.In the case of the needle holder described above, this means that the surgeon can initially press the branches together until the jaws of the needle gripper, which are operated at the distal end of the shaft, hold a needle firmly and under tension between them. If the handle is then released, the handle branches remain locked against each other in this position and the needle is held automatically, which relieves the surgeon during the suturing process.

Soll der Griff z.B. nach Beendigung des Nähvorganges zum Entfernen der Nadel wieder auseinandergeschwenkt werden, so können die Riegeleinrichlungen mittels einer am Griff angeordneten Stelleinrichtung außer Eingriff gebracht werden.If the handle is to be swung apart again after the sewing process has been completed, for example to remove the needle, the locking devices can be disengaged using an adjusting device located on the handle.

Bei herkömmlichen Griffen ist dabei vorgesehen, daß die Stelleinrichtung die Regeleinrichtungen nur während des Zeitraumes der Betätigung außer Eingriff bringt. Danach nehmen die Riegeleinrichlungen automatisch wieder eine Eingriffsposition bzw. eine Position ein, in der sie während des Verschwenken in Eingriff bringbar sind.In conventional handles, the actuating device only disengages the control devices during the period of operation. After that, the locking devices automatically return to an engaged position or a position in which they can be engaged during pivoting.

Aufgrund ihrer oben beschriebenen Eigenschaften sind die gattungsgemäßen Axialgriffe insbesondere für Nadelhalter geeignet und werden vorrangig auch dort eingesetezt. Ihr Einsatz bei z.B. Zangen zum Ergreifen und Halten von Gewebe ist dagegen eher problematisch. Insbesondere bei derartigen Gewebezangen, aber auch bei anderen endoskopischen Instrumenten, kann unter Umständen nicht erwünscht sein, daß die Griflbranchen automatisch in jeder Verschwenkposition gegen eine Auseinanderbewegiing verriegelt werden, da hierdurch ein feinfühliges Arbeiten erschwert wird.Due to the properties described above, the axial handles of this type are particularly suitable for needle holders and are primarily used there. Their use in forceps for grasping and holding tissue, for example, is rather problematic. Particularly with tissue forceps of this type, but also with other endoscopic instruments, it may not be desirable for the handle branches to be automatically locked against moving apart in every pivoting position, as this makes it more difficult to work with sensitivity.

In letzter Zeit geht die Tendenz dabin, vom Aufbau her ähnliche Geräte mit unterschiedlichen Funktionen so weit wie möglich aus gleichen Komponenten aufzubauen. Diese Komponenten können dann beliebig unter den Instrumenten ausgetauscht werden. Denkbar ist z.B. ein modulares Baukastensystem, mit dem sich z.B. Nadelgreifer aber auch Gewebezangen bzw andere Instrumente zusammensetzen lassen.Recently, the trend has been to build structurally similar devices with different functions from as many of the same components as possible. These components can then be exchanged between instruments at will. One possibility is a modular system with which, for example, needle grippers but also tissue forceps or other instruments can be put together.

Ein soches System setzt allerdings eine große Flexibilität voraus, die mit den gattungsgemäßen Axialgriffeii nicht gegeben ist.However, such a system requires a high degree of flexibility, which is not possible with the generic axial grips.

Die Aufgabe der Erfindung ist es daher, einen Axialgriff zu schaffen, der eine problemlose Betätigung von insbesondere endoskopischen Schafünslrumenten mit unterschiedlichen Funktionen erlaubt. The object of the invention is therefore to create an axial handle that allows problem-free operation of endoscopic instruments with different functions.

Gelöst wird diese Aufgabe mit einem Axialgriff, der die kennzeichnenden Merkmale des Anspruchs 1 aufweist.This object is achieved with an axial handle having the characterizing features of claim 1.

Danach ist vorgesehen, daß die Stelleinrichtung in eine Einstellposilion bringbar ist, in der die Riegeleinrichtungen dauerhaft und selbsttätig bis zur Aufhebung dieser Einslellposition außer Eingriff bleiben.It is then provided that the adjusting device can be brought into a setting position in which the locking devices remain permanently and automatically disengaged until this setting position is canceled.

Erfindungsgemäß erhält man damit einen Axialgriff, der einerseits die Eigenschaften gattungsgemäßer Griffe aufweist und darüber hinaus aber auch so eingestellt werden kann, daß seine Branchen frei und ohne daß hierfür eine dauernde Betätigung der Stelleinrichtung durch den Operateur erforderlich ist, beliebig relativ zueinander verschwenkbar sind.According to the invention, an axial handle is thus obtained which, on the one hand, has the properties of generic handles and, in addition, can also be adjusted in such a way that its branches can be freely pivoted relative to one another without the operator having to constantly operate the adjusting device.

Der Operateur kann also durch entsprechende Einstellung der Stelleinrichtung den Griff an die Funktion des jeweiligen Instrumentes anpassen. Soll der Griff z.B. für eine Gewebezange eingesetzt werden, so wird die Stelleinrichtung in die erfindungsgemäße Einstellposition gebracht, in der die Riegeleinrichtungen dauerhaft außer Eingriff sind. Ist der Griff dagegen für einen Nadelhalter oderThe surgeon can therefore adjust the handle to the function of the respective instrument by adjusting the setting device accordingly. If the handle is to be used for a tissue forceps, for example, the setting device is brought into the setting position according to the invention, in which the locking devices are permanently disengaged. If, on the other hand, the handle is to be used for a needle holder or

ähnliches gedacht, so wird diese Einstellposition wieder aufgehoben, mit der Folge, daß die Griflbranchen, wie die der oben beschriebenen bekannten Griffe, in unterschiedlichen Positionen gegen ein Auseinanderschwenken verriegelbar sind und durch Betätigung der Slelleinrichlung und nur während ihrer Betätigung außer Eingriff gebracht werden.If something similar is intended, this setting position is canceled again, with the result that the handle branches, like those of the known handles described above, can be locked in different positions to prevent them from swinging apart and are disengaged by actuating the locking device and only during its actuation.

Der erfindungsgemäße Axialgriff ist damit universell einsetzbar.The axial handle according to the invention can therefore be used universally.

Vorteilhafte Ausgestaltungen sind in den Unteransprüchen angegeben. Vorteilhaft ist die Stelleinrichtung so aufgeslaltet, daß sie sich zunächst in eine erste Position bringen läßt, in der die Riegeleinrichtungen außer Eingriff gelangen und daß sie dann zur Erzielung der oben angesprochenen dauerhaften Einstellposilion in dieser ersten Position arretierbar ist. Besonders vorteilhaft ist die Stelleinrichtung ein in einer Richtung gegen die Kraft einer Feder verschiebbares und drehbares Element, das durch Verschiebung gegen die Federkraft in die oben angesprochene erste Position bringbar und durch Verdrehen in dieser ersten Position arretierbar ist.Advantageous embodiments are specified in the subclaims. The adjusting device is advantageously designed in such a way that it can first be brought into a first position in which the locking devices are disengaged and that it can then be locked in this first position to achieve the permanent setting position mentioned above. The adjusting device is particularly advantageously an element that can be moved and rotated in one direction against the force of a spring, which can be brought into the first position mentioned above by moving it against the spring force and can be locked in this first position by turning it.

Wie bei gattungsgemäßeu Axialgriffen, so ist auch bei dem erfindungsgemäßen Griff vorzugsweise vorgesehen, daß die Riegeleinrichtungen durch jeweils an einer der Branchen aufeinander zuweisend angeordnete Elemente mit zugeordneten Rastungen gebildet sind. Die Rastungen sind so ausgerichtet, daß bei Eingriff der Riegeleinrichtungen ein Zusammendrücken der Branchen (innerhalb ihres Verschwenkbereiches) möglich ist, während ein Auseinanderschwenken der Branchen durch den jeweils eingestellten Rasteingriff verhindert wird. Solche Riegeleinrichtungen werden standardmäßig verwendet und lassen sich in besonders einfacher Weise konstruktiv verwirklichen.As with the generic axial handles, the handle according to the invention is also preferably provided with the locking devices being formed by elements arranged on each of the branches facing one another with associated detents. The detents are aligned in such a way that when the locking devices engage, the branches can be pressed together (within their pivoting range), while the branches are prevented from pivoting apart by the locking engagement set in each case. Such locking devices are used as standard and can be implemented in a particularly simple manner.

Zur Entriegelung reicht es, daß eines der Rastelemente (oder beide) soweit ausgelenkt werden, bis ihre Rastungen außer Eingriff sind. Auch der hierfür erforderliche Mechanismus kann in besonders einfacher Weise verwirklicht werden.To unlock it, it is sufficient that one of the locking elements (or both) are deflected until their locking mechanisms are disengaged. The mechanism required for this can also be implemented in a particularly simple way.

Im folgenden soll die Erfindung an Hand von Abbildungen, die beispielhaft eine Ausführungsform der Erfindung zeigen, näher erläutert werden.In the following, the invention will be explained in more detail with reference to figures which show an example embodiment of the invention.

Dabei zeigt:It shows:

Fig. 1: im Teilschnitt eine Seitenansicht des Griffes,Fig. 1: partial section of a side view of the handle,

Fig. 2: den Grill aus Fig. 1 in einer anderen Verschwenkpo-Fig. 2: the grill from Fig. 1 in a different swivel position

sition undposition and

Fig. 3: den Griff aus Fig. 2 in der dort dargestellten Ver-Fig. 3: the handle from Fig. 2 in the configuration shown there.

schwenkposition, wobei allerdings die Riegeleinheiten außer Eingriff gebracht sind.pivoting position, whereby the locking units are disengaged.

In Fig. 1 erkennt man ein Ausführungsbeispiel des erfindungsgemäßen Griffes 10, der an einem nur teilweise dargestellten Schaft 11 eines endoskopischen Instrumentes angeordnet ist. Der Griff 10 weist eine ortsfest am Schaft 11 angeordnete Branche 12 und eine daran in einem Gelenk 13 verschwenkbar gelagerte Branche 14 auf. Bei Verschwenkung der Branchen 12 und 14 gegeneinander wird über aneinander und an den Branchen angelenkte Hebel 15 und 16 ein mit seinem proximalen Ende in dem Hebel 16 befestigtes Schub- und Zugelement 17 in Richtung des Pfeiles 18 verschoben. Das Schub- und Zugelement 17 ist an seinem distalen Ende mit einem nicht dargestellten Werkzeug verbunden, das durch Verschiebung des Elementes betätigt wird.In Fig. 1, one can see an embodiment of the handle 10 according to the invention, which is arranged on a shaft 11 of an endoscopic instrument (only partially shown). The handle 10 has a branch 12 arranged in a fixed position on the shaft 11 and a branch 14 pivotably mounted on it in a joint 13. When the branches 12 and 14 pivot against each other, a push and pull element 17, which is attached with its proximal end to the lever 16, is displaced in the direction of the arrow 18 via levers 15 and 16, which are hinged to each other and to the branches. The push and pull element 17 is connected at its distal end to a tool (not shown), which is actuated by displacing the element.

An den Branchen 12 und 14 sind weiterhin aufeinander zuweisende Riegeleinrichlungen 19 und 20 vorgesehen. Die Riegeleinriclitungen 19 und 20 weisen Rastungen 21 und 22 auf und sind so positioniert bzw. so angeordnet, daß die Riegeleinrichtunngen bei Verschwenkung der Branchen 12 und 14 in den eingangs beschriebenen und in den in Fig. 2 gezeigten Rasleingriff bringbar sind. Hierauf wird später noch eingegangen.Furthermore, locking devices 19 and 20 facing each other are provided on the branches 12 and 14. The locking devices 19 and 20 have catches 21 and 22 and are positioned or arranged in such a way that the locking devices can be brought into the locking engagement described at the beginning and shown in Fig. 2 when the branches 12 and 14 are pivoted. This will be discussed later.

Die Riegeleinrichtung 19 ist an dem einen Ende eines in einem Gelenk 23 verschwenkbar gelagerten Hebels 24 angeordnet. An dem anderen Ende des Hebels 24 greift ein in Richtung des Pfeiles 25 verschiebbares Element 26 einer Stelleinrichtung an. Wird das Element 26 in die Branche 12 hineingedrückt, so wird das abgewandte Ende des Hebels 24 gegen die Kraft einer Feder 27 (wie in Fig. 3 dargestellt) nach oben gedrückt, wobei das Riegelelement 19 nach hinten verschwenkt. An dem Element 26 ist mindestens ein Vorsprung 28 ausgebildet, der in einer definierten Eindrückposition des Elementes 26 durch Verdrehung dieses Elementes in Eingriff mit Ausnehmungen 29 in der Griffbranche 12 gebracht werden kann und in Eingriffsposition das Element 26 gegen die Kraft der Feder 27 arretiert.The locking device 19 is arranged at one end of a lever 24 pivotably mounted in a joint 23. An element 26 of an adjusting device, which can be moved in the direction of arrow 25, engages the other end of the lever 24. If the element 26 is pressed into the branch 12, the opposite end of the lever 24 is pressed upwards against the force of a spring 27 (as shown in Fig. 3), whereby the locking element 19 pivots backwards. At least one projection 28 is formed on the element 26, which in a defined pressing position of the element 26 can be brought into engagement with recesses 29 in the handle branch 12 by rotating this element and in the engaged position locks the element 26 against the force of the spring 27.

Fig. 2 zeigt den Griff 10 aus Fig. 1. In dieser Darstellung sind die Branchen 12 und 14 soweit aufeinander zu verschwenkt worden, daß die Riegeleinrichtungen 19 und 20 mit ihren Rastungen 22 und 21 in Eingriff gelangt sind. In der gezeigten Eingriffsposition können die Branchen 12 und 14 noch weiter zusammengeführt werden, wobei in den jeweiligen Verschwenkpositionen jeweils ein neuer Rasteingriff entsteht. Ein Auseinanderscliwenken der Griffbranchen 12 und 14 ist nicht möglich. Hierzu muß, wie in Fig. 3 dargestellt, die Riegeleinrichtung 19 durch Eindrücken der Stelleinrichtung 26 nach hinten ausgelenkt und die Rastverbindung zwischen den beiden Riegeleinrichlungen 19 und 20 gelöst werden.Fig. 2 shows the handle 10 from Fig. 1. In this illustration, the branches 12 and 14 have been pivoted towards each other to such an extent that the locking devices 19 and 20 have engaged with their catches 22 and 21. In the engagement position shown, the branches 12 and 14 can be brought together even further, whereby a new catch engagement is created in each of the pivot positions. It is not possible to pivot the handle branches 12 and 14 apart. To do this, as shown in Fig. 3, the locking device 19 must be deflected backwards by pressing in the adjusting device 26 and the catch connection between the two locking devices 19 and 20 must be released.

Dieser Zustand ist in Fig. 3 dargestellt. Man erkennt, daß das Element 26 der Stelleinrichtung soweit eingeschoben wurde, daß sich sein Vorsprung 28 auf Höhe der Ausnehmungen 29 befindet, dabei wurde der Hebel 24 gegen die Kraft der Feder 27 verschwenkl und die Riegeleinrichtung 19 außer Eingriff mit der Einrichtung 20 gebracht. In diesem Zustand, d.h. solange das Element 26 in dieser Position eingedrückt ist, können die Branchen 12 und 14 frei gegeneinander verschwenkt werden. Erfindungsgemäß ist vorgesehen, daß das Element 26 der Stelleinrichtung entweder von dem Operateur in dieser Stellung gehalten werden kann oder aber, wie in diesem Fall, durch Verdrehung mit seinem Vorsprung 28 in denThis state is shown in Fig. 3. It can be seen that the element 26 of the adjusting device has been pushed in so far that its projection 28 is at the level of the recesses 29, in the process the lever 24 has been pivoted against the force of the spring 27 and the locking device 19 has been brought out of engagement with the device 20. In this state, i.e. as long as the element 26 is pressed in this position, the branches 12 and 14 can be freely pivoted against each other. According to the invention, it is provided that the element 26 of the adjusting device can either be held in this position by the operator or, as in this case, by turning its projection 28 in the

Ausnehmungen 29 dauerhaft arretiert werden kann (gestrichelt dargestellt), wobei dann die Riegeleinrichlungen 19 und 20 ebenfalls dauerhaft außer Eingriff bleiben.Recesses 29 can be permanently locked (shown in dashed lines), whereby the locking devices 19 and 20 then also remain permanently disengaged.

Dargestellt ist eine besonders bevorzugte Ausführungsform. Selbstverständlich kann die Stelleinrichtung auch auf andere Weise verwirklicht werden. So wäre es z.B. denkbar, daß die Stelleinrichtung zwei Elemente aulweist, von denen eines die kurzzeitige Lösung der Riegelverbiiidung bewirkt und das andere die dauerhalte. Selbstverständlich muß die Stelleinrichtung auch nicht zwingend mit einem Element arbeiten, das gleichzeitig verschoben und verdreht werden kann. Denkbar wäre z.B. auch ein Element, daß nur verschiebbar ist und durch eine einschiebbare Schiebesicherung auf der oberen Seite der Griffbrauche 12 arretierbar ist. Weiterhin ist selbstverständlich auch der Steileinrichtung erzielbare Effekt nicht ausschließlich auf eine Auslenkung der Riegeleinrichtung nach hinten beschränkt. Denkbar wäre auch eine Verschiebung bzw. Verdrehungsbewegung. A particularly preferred embodiment is shown. Of course, the adjusting device can also be implemented in other ways. For example, it would be conceivable for the adjusting device to have two elements, one of which causes the locking connection to be released temporarily and the other to be released permanently. Of course, the adjusting device does not necessarily have to work with an element that can be moved and rotated at the same time. It would also be conceivable, for example, to have an element that can only be moved and can be locked by an insertable sliding lock on the upper side of the handle bar 12. Furthermore, the effect that can be achieved with the adjusting device is of course not limited exclusively to deflecting the locking device backwards. A displacement or twisting movement would also be conceivable.

Claims (5)

PATENTANSPRÜCHE:PATENT CLAIMS: 1. Axialgriff für chirurgische, insbesondere endoskopische Instrumente, mit zwei relativ zueinander verschwenkbaren Branchen, an denen einander zugeordnete Riegeleinrichtungen vorgesehen sind, die beim Zusammendrücken der Branchen in Eingriff bringbar sind und diese dann in im wesentlichen der jeweils erreichten Position gegen ein Auseinanderschwenken verriegeln, wobei eine an mindestens einer der Riegeleinrichtungen angreifende Stelleinrichtung vorgesehen ist, mit deren Betätigung die Riegeleinrichtungen zum Auseinanderschwenken der Branchen aui3er Eingriff bringbar sind, dadurch gekennzeichnet, daß die Stelleinrichtung (26) in eine dauerhafte Einstellposition bringbar ist, in der sie die Riegeleinrichtungen (19, 20) dauerhaft und selbsttätig bis zur Aufhebung dieser Einstellposition außer Eingriff hält.1. Axial handle for surgical, in particular endoscopic instruments, with two branches which can be pivoted relative to one another and on which mutually associated locking devices are provided which can be brought into engagement when the branches are pressed together and then lock them in essentially the position reached in each case against pivoting apart, wherein an adjusting device engaging at least one of the locking devices is provided, with the actuation of which the locking devices can be brought out of engagement for pivoting the branches apart, characterized in that the adjusting device (26) can be brought into a permanent setting position in which it keeps the locking devices (19, 20) permanently and automatically out of engagement until this setting position is canceled. 2. Axialgriff nach Anspruch 1, dadurch gekennzeichnet, daß zur Erzielung der Einslellposilion die Stelleinrichtung zunächst in eine erste Position bringbar ist, in der die Riegeleinrichtungen (19, 20) außer Eingriff in allen Verschwenkpositionen der Branchen (12, 14) gehalten sind und dann in dieser ersten Position zur Erzielung der dauerhaften Einstellposition arretierbar ist.2. Axial handle according to claim 1, characterized in that in order to achieve the setting position, the adjusting device can first be brought into a first position in which the locking devices (19, 20) are held out of engagement in all pivoting positions of the branches (12, 14) and can then be locked in this first position in order to achieve the permanent setting position. 3. Axialgriff nach Anspruch 2, dadurch gekennzeichnet, daß die Stelleinrichtung ein auf einer Branche (12) angeordnetes verschiebbares und drehbares Element (26) ist, das durch Verschiebung in die erste Position und durch Verdrehen aus dieser ersten Position in die dauerhafte Einstellposition bringbar ist.3. Axial handle according to claim 2, characterized in that the adjusting device is a displaceable and rotatable element (26) arranged on a branch (12) which can be brought into the first position by displacement and into the permanent setting position by rotation from this first position. 4. Axialgriff nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Riegeleinrichtungen (19, 20) jeweils an einer der Branchen (12, 14) aufeinander zuweisend angeordnete Elemente (19, 20) mit einander zugeordneten Rastungen (21, 22) aufweisen.4. Axial handle according to one of claims 1 to 3, characterized in that the locking devices (19, 20) each have elements (19, 20) arranged on one of the branches (12, 14) facing one another and having mutually associated detents (21, 22). 5. Axialgriff nach Anspruch 4, dadurch gekennzeichnet, daß5. Axial handle according to claim 4, characterized in that eines der Elemente (19) verschwenkbar gelagert ist und durch Betätigung des Stellgliedes (26) soweit auslenkbar ist, daß die einander zugeordneten Rastungen (21, 22) außer Eingriff sind.one of the elements (19) is pivotably mounted and can be deflected by actuating the actuator (26) to such an extent that the mutually associated detents (21, 22) are disengaged.
DE29623113U 1996-09-18 1996-09-18 Axial handle for surgical, especially endoscopic, instruments Expired - Lifetime DE29623113U1 (en)

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DE19739002A DE19739002A1 (en) 1996-09-18 1997-09-06 Axial handle for surgical, esp. endoscopic, instruments

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