WO2018091599A1 - Medical instrument - Google Patents

Medical instrument Download PDF

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Publication number
WO2018091599A1
WO2018091599A1 PCT/EP2017/079494 EP2017079494W WO2018091599A1 WO 2018091599 A1 WO2018091599 A1 WO 2018091599A1 EP 2017079494 W EP2017079494 W EP 2017079494W WO 2018091599 A1 WO2018091599 A1 WO 2018091599A1
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WO
WIPO (PCT)
Prior art keywords
leg
rail
medical instrument
edges
latching mechanism
Prior art date
Application number
PCT/EP2017/079494
Other languages
German (de)
French (fr)
Inventor
Alexander Merz
Bernhard Spitznagel
Original Assignee
Karl Klappenecker Gmbh & Co.Kg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Karl Klappenecker Gmbh & Co.Kg filed Critical Karl Klappenecker Gmbh & Co.Kg
Publication of WO2018091599A1 publication Critical patent/WO2018091599A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A61B17/2812—Surgical forceps with a single pivotal connection
    • A61B17/2833—Locking means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A61B17/29—Forceps for use in minimally invasive surgery

Definitions

  • the invention relates to a medical instrument according to the preamble of claim 1.
  • Such medical instruments are already known and used in various forms and configurations.
  • a pivotally mounted handle lever is in at least one pivotal position relative to the handle in at least one Lockable direction.
  • the locking mechanism can be switched on, off and optionally temporarily off.
  • the disadvantage here is that a stepwise adjustment of the locking mechanism is not possible.
  • the latching mechanism can be switched on and off, it can only be latched in one direction when it is switched on.
  • the object of the present invention is to overcome the disadvantages of the prior art.
  • a medical instrument is to be provided which enables more flexible handling, in particular of a latching mechanism.
  • the medical instrument should be simple, inexpensive to produce and easy to clean.
  • the medical instrument has a first leg and a second leg. Furthermore, the medical instrument is provided with a latching mechanism which can be locked in preferably three stages.
  • the latching mechanism has a rail which is pivotally attached thereto via a hinge on an inner surface of the second leg. Inner surface is present, the surface of the second leg, which faces the first leg.
  • the rail is further movable in a recess of a sliding element.
  • the sliding element is connected via a bolt with a push button.
  • the push button in turn is arranged pressed on an outer side of the first leg. Outer side is the surface of the first leg, which faces away from the second leg.
  • the push button has in its interior a blind hole in which a spring is mounted. At one end, the spring thus abuts against a closed end of the blind bore, on its side opposite the blind hole, the spring presses against a locking ball, which in turn can be brought into operative connection with internal teeth in the first limb.
  • a middle position of the detent mechanism i. in a so-called neutral position, the rail is moved in the recess in the slider element such that edges of the recess extend parallel to edges of the rail sliding in it.
  • the Rastierkugel is located approximately in the middle of the internal teeth in the first leg.
  • the spring has a bias. A tilting of the edges and thus a locking of the locking mechanism or the medical instrument does not take place.
  • the rail In an inner position of the latching mechanism, the rail is moved in the recess in the sliding element such that the edges of the recess no longer run parallel to the edges of the rail sliding in it, but tilt the edges. This was done by pressing the sliding element or the associated push button against the train of spring in the direction of the outer surface of the first leg.
  • the Rastierkugel is located on the internal teeth in a direction away from the rail direction shifted upward. The rail or the latching mechanism and thus the medical instrument is locked against opening.
  • the rail is moved in the recess in the sliding element in such a way that the edges of the recess no longer run parallel to the edges of the sliding rail in it, but the edges and tilt, this time, however, are the opposite edge ends the edges affected compared to the inner position. This was done by pressing the sliding element or the associated push button again against the train of spring in the direction of the outer surface of the first leg.
  • the Rastierkugel is located on the internal teeth in a direction facing the rail shifted downwards. The rail or the latching mechanism and thus the medical instrument is locked against closure.
  • the latching mechanism is preferably arranged on the outer surface of the first leg above the rail. Above this means here in the direction of a joint facing side of the rail over which the two legs are rotatably mounted.
  • the rail is arranged on the inner surface of the second leg.
  • the locking mechanism below the rail that is arranged on the side facing away from the joint of the rail.
  • the latching mechanism it is conceivable to arrange the latching mechanism on an inner surface of the first leg or on an inner or outer surface of the second leg. The rail would then be arranged correspondingly on an inner surface of the first leg.
  • the rail may be formed like a wave, since sometimes a user feels the desire to "feel" the detent during use.
  • the medical instrument has the advantage that the requirement has been met to make the locking mechanism lockable in both directions, However, to allow a position in which no locking effect of the locking mechanism is deployed (center position / neutral position).
  • Another advantage is that significantly reduced by the present locking mechanism or the absence of ratchet teeth or the like sharp elements damaging the gloves of the user and sometimes even turned off.
  • Figure 1 is a side view of an inventive medical instrument with locking mechanism in a central position
  • Figure 2 is a side view of the instrument in Figure 1 with the locking mechanism in an inner position
  • Figure 3 is a side view of the instrument in Figure 1 with the locking mechanism in an exception.
  • FIGS. 1 to 3 show a medical instrument 1.
  • the medical instrument 1 has a first leg 2 and a second leg 3. Furthermore, the medical instrument 1 is provided with a latching mechanism 4, which can be locked in preferably three stages.
  • the locking mechanism 4 has a rail 5, which is pivotally mounted on a pivot surface 6 on an inner surface 7 of the second leg 3 via a rotary joint.
  • Inner surface 7 is presently the surface of the second leg 3, which faces the first leg 2.
  • the rail 5 is further movable in a recess 8 of a sliding element 9.
  • the sliding element 9 is connected via a bolt 10 with a push button 1 1.
  • the push button 1 1 in turn is arranged on an outer side 12 of the first leg 2 pressed. Outside 12 is the surface of the first leg 1, which faces away from the second leg 3.
  • the push button 1 1 has in its interior a blind hole 13 in which a spring 14 is mounted. At one end, the spring 14 thus abuts against a closed end of the blind bore 13, on its side opposite the blind bore 13, the spring 14 presses against a detent ball 15, which in turn can be brought into operative connection with internal teeth 16 in the first leg 2.
  • a middle position of the latching mechanism 4 according to FIG. 1 in a so-called neutral position, the rail 5 is moved in the recess 8 in the slide element 9 such that edges 17 of the recess 8 run parallel to edges 18 of the rail 5 sliding in it.
  • the Rastierkugel 15 is located approximately in the middle of the internal teeth 16 in the first leg 2.
  • the spring 14 has a bias. A tilting of the edges 17 and 18 and thus a locking of the latching mechanism 4 and the medical instrument 1 does not take place.
  • the rail 5 In an inner position of the latching mechanism 4 according to Figure 2, the rail 5 is moved in the recess 8 in the sliding element 9 such that the edges 17 of the recess 8 are no longer parallel to the edges 18 of the sliding rail 5 in her, but the edges 17 and 18 tilt.
  • the rail 5 is moved in the recess 8 in the sliding element 9 in such a way that The edges 17 of the recess 8 again no longer run parallel to the edges 18 of the sliding rail 5 in her, but tilt the edges 17 and 18, this time, however, the opposite edge ends of the edges 17 and 18 are affected compared to the inner position. This was done by pressing the sliding element 9 and the associated push button 1 1 again against the train of the spring 14 in the direction of the outer surface 12 of the first leg 2.
  • the Rastierkugel 15 is located on the internal teeth 16 in a direction of the rail 5 moved down. The rail 5 and the locking mechanism 4 and thus the medical instrument 1 is locked against closure.

Abstract

The invention relates to a medical instrument comprising a first arm (2) and a second arm (3), said instrument being characterised in that the first arm (2) and the second arm (3) are interconnected by means of a latch mechanism (4).

Description

Medizinisches Instrument  Medical instrument
Technisches Gebiet Technical area
Die Erfindung betrifft ein medizinisches Instrument nach dem Oberbegriff des Anspruchs 1 . Stand der Technik The invention relates to a medical instrument according to the preamble of claim 1. State of the art
Derartige medizinische Instrumente sind bereits in vielfältiger Form und Ausgestaltung bekannt und gebräuchlich. Nur beispielhaft wird auf die DE 10 2014 1 10 883 A1 verwiesen, in welcher ein Handgriff eines medizinischen Instrumentes offenbart wird. Ein schwenkbar gelagerter Griffhebel ist in wenigstens einer Schwenkposition bezüglich des Handgriffs in zumindest einer Richtung verrastbar. Der Rastmechanismus kann ein-, aus- und optional temporär ausgeschaltet werden. Such medical instruments are already known and used in various forms and configurations. For example only, reference is made to DE 10 2014 1 10 883 A1, in which a handle of a medical instrument is disclosed. A pivotally mounted handle lever is in at least one pivotal position relative to the handle in at least one Lockable direction. The locking mechanism can be switched on, off and optionally temporarily off.
Nachteilig hierbei ist, dass eine stufenweise Verstellung des Rastmechanismus nicht möglich ist. Der Rastmechanismus kann zwar ein- und ausgeschaltet werden, ist im eingeschalteten Zustand jedoch lediglich in eine Richtung verrastbar. The disadvantage here is that a stepwise adjustment of the locking mechanism is not possible. Although the latching mechanism can be switched on and off, it can only be latched in one direction when it is switched on.
Aufgabe der Erfindung Object of the invention
Die Aufgabe der vorliegenden Erfindung ist es, die Nachteile aus dem Stand der Technik zu überwinden. Insbesondere soll ein medizinisches Instrument bereitgestellt werden, das eine flexiblere Handhabung insbesondere eines Rastmechanismus ermöglicht. Gleichzeitig soll das medizinische Instrument einfach aufgebaut, kostengünstig herzustellen und leicht zu reinigen sein. The object of the present invention is to overcome the disadvantages of the prior art. In particular, a medical instrument is to be provided which enables more flexible handling, in particular of a latching mechanism. At the same time, the medical instrument should be simple, inexpensive to produce and easy to clean.
Lösung der Aufgabe Solution of the task
Zur Lösung der Aufgabe führen die Merkmale nach dem Anspruch 1 . To achieve the object, the features according to claim 1.
Vorteilhafte Ausgestaltungen sind in den Unteransprüchen beschrieben. Advantageous embodiments are described in the subclaims.
Das medizinisches Instrument weist einen ersten Schenkel und einen zweiten Schenkel auf. Ferner ist das medizinische Instrument mit einem Rastmechanismus versehen, welcher in bevorzugt drei Stufen arretierbar ist. The medical instrument has a first leg and a second leg. Furthermore, the medical instrument is provided with a latching mechanism which can be locked in preferably three stages.
Der Rastmechanismus weist eine Schiene auf, welche über ein Drehgelenk auf einer Innenfläche des zweiten Schenkels an diesem schwenkbar befestigt ist. Innenfläche ist vorliegend die Fläche des zweiten Schenkels, welche dem ersten Schenkel zugewandt ist. Die Schiene ist weiterhin in einer Aussparung eines Schiebeelementes verfahrbar. Einends ist das Schiebeelement über einen Bolzen mit einem Druckknopf verbunden. Der Druckknopf wiederum ist auf einer Aussenseite des ersten Schenkels drückbar angeordnet. Aussenseite ist die Fläche des ersten Schenkels, welche von dem zweiten Schenkel abgewandt ist. The latching mechanism has a rail which is pivotally attached thereto via a hinge on an inner surface of the second leg. Inner surface is present, the surface of the second leg, which faces the first leg. The rail is further movable in a recess of a sliding element. At one end, the sliding element is connected via a bolt with a push button. The push button in turn is arranged pressed on an outer side of the first leg. Outer side is the surface of the first leg, which faces away from the second leg.
Der Druckknopf weist in seinem Inneren eine Sacklochbohrung auf, in welcher eine Feder gelagert ist. Einends liegt die Feder folglich an einem geschlossenen Ende der Sacklochbohrung an, auf ihrer der Sacklochbohrung gegenüberliegenden Seite drückt die Feder gegen eine Rastierkugel, welche wiederum mit einer Innenverzahnung in dem ersten Schenkel in Wirkverbindung bringbar ist. The push button has in its interior a blind hole in which a spring is mounted. At one end, the spring thus abuts against a closed end of the blind bore, on its side opposite the blind hole, the spring presses against a locking ball, which in turn can be brought into operative connection with internal teeth in the first limb.
In einer Mittelstellung des Rastmechanismus, d.h. in einer sogenannten neutralen Stellung, ist die Schiene derart in der Aussparung in dem Schieberelement verfahren, dass Kanten der Aussparung parallel zu Kanten der in ihr gleitenden Schiene verlaufen. Die Rastierkugel befindet sich in etwa der Mitte der Innenverzahnung in dem ersten Schenkel. Die Feder weist eine Vorspannung auf. Ein Verkanten der Kanten und damit ein Sperren des Rastmechanismus bzw. des medizinischen Instrumentes findet nicht statt. In a middle position of the detent mechanism, i. in a so-called neutral position, the rail is moved in the recess in the slider element such that edges of the recess extend parallel to edges of the rail sliding in it. The Rastierkugel is located approximately in the middle of the internal teeth in the first leg. The spring has a bias. A tilting of the edges and thus a locking of the locking mechanism or the medical instrument does not take place.
In einer Innenstellung des Rastmechanismus ist die Schiene derart in der Aussparung in dem Schiebeelement verfahren, dass die Kanten der Aussparung nicht mehr parallel zu den Kanten der in ihr gleitenden Schiene verlaufen, sondern sich die Kanten verkanten. Dies erfolgte durch ein Betätigen des Schiebeelementes bzw. des damit verbundenen Druckknopfes gegen den Zug der Feder in Richtung der Aussenfläche des ersten Schenkels. Die Rastierkugel befindet sich auf der Innenverzahnung in einer von der Schiene abgewandten Richtung nach oben verschoben. Die Schiene bzw. der Rastmechanismus und damit das medizinische Instrument ist gegen ein Öffnen gesperrt. In einer Aussensteilung des Rastmechanismus ist die Schiene derart in der Aussparung in dem Schiebeelement verfahren, dass die Kanten der Aussparung erneut nicht mehr parallel zu den Kanten der in ihr gleitenden Schiene verlaufen, sondern sich die Kanten und verkanten, dieses Mal allerdings sind die entgegengesetzten Kantenenden der Kanten verglichen mit der Innenstellung betroffen. Dies erfolgte durch ein Betätigen des Schiebeelementes bzw. des damit verbundenen Druckknopfes erneut gegen den Zug der Feder in Richtung der Aussenfläche des ersten Schenkels. Die Rastierkugel befindet sich auf der Innenverzahnung in einer der Schiene zugewandten Richtung nach unten verschoben. Die Schiene bzw. der Rastmechanismus und damit das medizinische Instrument ist gegen ein Schliessen gesperrt. In an inner position of the latching mechanism, the rail is moved in the recess in the sliding element such that the edges of the recess no longer run parallel to the edges of the rail sliding in it, but tilt the edges. This was done by pressing the sliding element or the associated push button against the train of spring in the direction of the outer surface of the first leg. The Rastierkugel is located on the internal teeth in a direction away from the rail direction shifted upward. The rail or the latching mechanism and thus the medical instrument is locked against opening. In an outer division of the latching mechanism, the rail is moved in the recess in the sliding element in such a way that the edges of the recess no longer run parallel to the edges of the sliding rail in it, but the edges and tilt, this time, however, are the opposite edge ends the edges affected compared to the inner position. This was done by pressing the sliding element or the associated push button again against the train of spring in the direction of the outer surface of the first leg. The Rastierkugel is located on the internal teeth in a direction facing the rail shifted downwards. The rail or the latching mechanism and thus the medical instrument is locked against closure.
Bei dem vorliegenden Ausführungsbeispiel ist der Rastmechanismus bevorzugt auf der Aussenfläche des ersten Schenkels oberhalb der Schiene angeordnet. Oberhalb bedeutet hier die in Richtung eines Gelenks zugewandte Seite der Schiene, über welches die beiden Schenkel drehbar gelagert sind. Die Schiene befindet sich auf der Innenfläche des zweiten Schenkels angeordnet. Selbstverständlich soll von der vorliegenden Erfindung umfasst sein, dass der Rastmechanismus unterhalb der Schiene, also auf der dem Gelenk abgewandten Seite der Schiene angeordnet ist. Weiterhin ist denkbar, den Rastmechanismus auf einer Innenfläche des ersten Schenkels anzuordnen oder auf einer Innen- oder Aussenfläche des zweiten Schenkels. Die Schiene wäre dann entsprechend auf einer Innenfläche des ersten Schenkels angeordnet. In the present embodiment, the latching mechanism is preferably arranged on the outer surface of the first leg above the rail. Above this means here in the direction of a joint facing side of the rail over which the two legs are rotatably mounted. The rail is arranged on the inner surface of the second leg. Of course, should be encompassed by the present invention, that the locking mechanism below the rail, that is arranged on the side facing away from the joint of the rail. Furthermore, it is conceivable to arrange the latching mechanism on an inner surface of the first leg or on an inner or outer surface of the second leg. The rail would then be arranged correspondingly on an inner surface of the first leg.
Weiterhin kann die Schiene wellenartig ausgebildet sein, da manch ein Benutzer den Wunsch verspürt, die Rastung während der Benutzung zu „fühlen". Furthermore, the rail may be formed like a wave, since sometimes a user feels the desire to "feel" the detent during use.
Das medizinische Instrument hat den Vorteil, dass der Anforderung Genüge getan wurde, den Rastmechanismus in beide Richtungen sperrbar zu machen, jedoch auch eine Stellung zu ermöglichen, in welcher keine Sperrwirkung des Rastmechanismus entfaltet wird (Mittelstellung/neutrale Stellung). The medical instrument has the advantage that the requirement has been met to make the locking mechanism lockable in both directions, However, to allow a position in which no locking effect of the locking mechanism is deployed (center position / neutral position).
Weiterhin vorteilhaft ist, dass durch den vorliegenden Rastmechanismus bzw. das nicht Vorhandensein von Rastzähnen oder dergleichen scharfen Elementen ein Beschädigen der Handschuhe des Benutzers deutlich verringert und teilweise sogar abgestellt wird. Another advantage is that significantly reduced by the present locking mechanism or the absence of ratchet teeth or the like sharp elements damaging the gloves of the user and sometimes even turned off.
Figurenbeschreibung figure description
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele sowie anhand der Zeichnungen; diese zeigen in: Further advantages, features and details of the invention will become apparent from the following description of preferred embodiments and from the drawings; these show in:
Figur 1 eine Seitenansicht eines erfindungsgemässen medizinischen Instrumentes mit Rastmechanismus in einer Mittelstellung; Figur 2 eine Seitenansicht des Instrumentes in Figur 1 mit dem Rastmechanismus in einer Innenstellung; Figure 1 is a side view of an inventive medical instrument with locking mechanism in a central position; Figure 2 is a side view of the instrument in Figure 1 with the locking mechanism in an inner position;
Figur 3 eine Seitenansicht des Instrumentes in Figur 1 mit dem Rastmechanismus in einer Ausserstellung. Figure 3 is a side view of the instrument in Figure 1 with the locking mechanism in an exception.
Ausführungsbeispiel embodiment
In den Figuren 1 bis 3 ist ein medizinisches Instrument 1 dargestellt. Das medizinische Instrument 1 weist einen ersten Schenkel 2 und einen zweiten Schenkel 3 auf. Ferner ist das medizinische Instrument 1 mit einem Rastmechanismus 4 versehen, welcher in bevorzugt drei Stufen arretierbar ist. FIGS. 1 to 3 show a medical instrument 1. The medical instrument 1 has a first leg 2 and a second leg 3. Furthermore, the medical instrument 1 is provided with a latching mechanism 4, which can be locked in preferably three stages.
Der Rastmechanismus 4 weist eine Schiene 5 auf, welche über ein Drehgelenk 6 auf einer Innenfläche 7 des zweiten Schenkels 3 an diesem schwenkbar befestigt ist. Innenfläche 7 ist vorliegend die Fläche des zweiten Schenkels 3, welche dem ersten Schenkel 2 zugewandt ist. The locking mechanism 4 has a rail 5, which is pivotally mounted on a pivot surface 6 on an inner surface 7 of the second leg 3 via a rotary joint. Inner surface 7 is presently the surface of the second leg 3, which faces the first leg 2.
Die Schiene 5 ist weiterhin in einer Aussparung 8 eines Schiebeelementes 9 verfahrbar. Einends ist das Schiebeelement 9 über einen Bolzen 10 mit einem Druckknopf 1 1 verbunden. Der Druckknopf 1 1 wiederum ist auf einer Aussenseite 12 des ersten Schenkels 2 drückbar angeordnet. Aussenseite 12 ist die Fläche des ersten Schenkels 1 , welche von dem zweiten Schenkel 3 abgewandt ist. The rail 5 is further movable in a recess 8 of a sliding element 9. At one end, the sliding element 9 is connected via a bolt 10 with a push button 1 1. The push button 1 1 in turn is arranged on an outer side 12 of the first leg 2 pressed. Outside 12 is the surface of the first leg 1, which faces away from the second leg 3.
Der Druckknopf 1 1 weist in seinem Inneren eine Sacklochbohrung 13 auf, in welcher eine Feder 14 gelagert ist. Einends liegt die Feder 14 folglich an einem geschlossenen Ende der Sacklochbohrung 13 an, auf ihrer der Sacklochbohrung 13 gegenüberliegenden Seite drückt die Feder 14 gegen eine Rastierkugel 15, welche wiederum mit einer Innenverzahnung 16 in dem ersten Schenkel 2 in Wirkverbindung bringbar ist. The push button 1 1 has in its interior a blind hole 13 in which a spring 14 is mounted. At one end, the spring 14 thus abuts against a closed end of the blind bore 13, on its side opposite the blind bore 13, the spring 14 presses against a detent ball 15, which in turn can be brought into operative connection with internal teeth 16 in the first leg 2.
In einer Mittelstellung des Rastmechanismus 4 gemäss Figur 1 , in einer sogenannten neutralen Stellung, ist die Schiene 5 derart in der Aussparung 8 in dem Schieberelement 9 verfahren, dass Kanten 17 der Aussparung 8 parallel zu Kanten 18 der in ihr gleitenden Schiene 5 verlaufen. Die Rastierkugel 15 befindet sich in etwa der Mitte der Innenverzahnung 16 in dem ersten Schenkel 2. Die Feder 14 weist eine Vorspannung auf. Ein Verkanten der Kanten 17 und 18 und damit ein Sperren des Rastmechanismus 4 bzw. des medizinischen Instrumentes 1 findet nicht statt. In einer Innenstellung des Rastmechanismus 4 gemäss Figur 2 ist die Schiene 5 derart in der Aussparung 8 in dem Schiebeelement 9 verfahren, dass die Kanten 17 der Aussparung 8 nicht mehr parallel zu den Kanten 18 der in ihr gleitenden Schiene 5 verlaufen, sondern sich die Kanten 17 und 18 verkanten. Dies erfolgte durch ein Betätigen des Schiebeelementes 9 bzw. des damit verbundenen Druckknopfes 1 1 gegen den Zug der Feder 14 in Richtung der Aussenfläche 12 des ersten Schenkels 2. Die Rastierkugel 15 befindet sich auf der Innenverzahnung 16 in einer von der Schiene 5 abgewandten Richtung nach oben verschoben. Die Schiene 5 bzw. der Rastmechanismus 4 und damit das medizinische Instrument 1 ist gegen ein Öffnen gesperrt. In a middle position of the latching mechanism 4 according to FIG. 1, in a so-called neutral position, the rail 5 is moved in the recess 8 in the slide element 9 such that edges 17 of the recess 8 run parallel to edges 18 of the rail 5 sliding in it. The Rastierkugel 15 is located approximately in the middle of the internal teeth 16 in the first leg 2. The spring 14 has a bias. A tilting of the edges 17 and 18 and thus a locking of the latching mechanism 4 and the medical instrument 1 does not take place. In an inner position of the latching mechanism 4 according to Figure 2, the rail 5 is moved in the recess 8 in the sliding element 9 such that the edges 17 of the recess 8 are no longer parallel to the edges 18 of the sliding rail 5 in her, but the edges 17 and 18 tilt. This was done by pressing the sliding element 9 and the associated push button 1 1 against the train of the spring 14 in the direction of the outer surface 12 of the first leg 2. The Rastierkugel 15 is located on the internal teeth 16 in a direction away from the rail 5 direction moved up. The rail 5 and the locking mechanism 4 and thus the medical instrument 1 is locked against opening.
In einer Aussensteilung des Rastmechanismus 4 gemäss Figur 3 ist die Schiene 5 derart in der Aussparung 8 in dem Schiebeelement 9 verfahren, dass die Kanten 17 der Aussparung 8 erneut nicht mehr parallel zu den Kanten 18 der in ihr gleitenden Schiene 5 verlaufen, sondern sich die Kanten 17 und 18 verkanten, dieses Mal allerdings sind die entgegengesetzten Kantenenden der Kanten 17 und 18 verglichen mit der Innenstellung betroffen. Dies erfolgte durch ein Betätigen des Schiebeelementes 9 bzw. des damit verbundenen Druckknopfes 1 1 erneut gegen den Zug der Feder 14 in Richtung der Aussenfläche 12 des ersten Schenkels 2. Die Rastierkugel 15 befindet sich auf der Innenverzahnung 16 in einer der Schiene 5 zugewandten Richtung nach unten verschoben. Die Schiene 5 bzw. der Rastmechanismus 4 und damit das medizinische Instrument 1 ist gegen ein Schliessen gesperrt. In an outer division of the latching mechanism 4 according to FIG. 3, the rail 5 is moved in the recess 8 in the sliding element 9 in such a way that The edges 17 of the recess 8 again no longer run parallel to the edges 18 of the sliding rail 5 in her, but tilt the edges 17 and 18, this time, however, the opposite edge ends of the edges 17 and 18 are affected compared to the inner position. This was done by pressing the sliding element 9 and the associated push button 1 1 again against the train of the spring 14 in the direction of the outer surface 12 of the first leg 2. The Rastierkugel 15 is located on the internal teeth 16 in a direction of the rail 5 moved down. The rail 5 and the locking mechanism 4 and thus the medical instrument 1 is locked against closure.
Obwohl nur eine/einige bevorzugte Ausführungsbeispiel/e der Erfindung beschrieben und dargestellt wurde/n, ist es offensichtlich, dass der Fachmann zahlreiche Modifikationen hinzufügen kann, ohne Wesen und Umfang der Erfindung zu verlassen. Although only a / a few preferred embodiments of the invention have been described and illustrated, it will be obvious that one skilled in the art can add numerous modifications without departing from the spirit and scope of the invention.
Bezugszeichenliste LIST OF REFERENCE NUMBERS
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Claims

Patentansprüche claims
1 . Medizinisches Instrument mit einem ersten Schenkel (2) und einem zweiten Schenkel (3), dadurch gekennzeichnet, dass der erste Schenkel (2) und der zweite Schenkel (3) über einen Rastmechanismus (4) miteinander verbunden sind. 1 . Medical instrument having a first leg (2) and a second leg (3), characterized in that the first leg (2) and the second leg (3) via a latching mechanism (4) are interconnected.
2. Medizinisches Instrument nach Anspruch 1 , dadurch gekennzeichnet, dass der Rastmechanismus (4) ein Schiebeelement (9) aufweist, welches mit einer Schiene (5) in Wirkverbindung bringbar ist. 2. Medical instrument according to claim 1, characterized in that the latching mechanism (4) has a sliding element (9) which can be brought into operative connection with a rail (5).
3. Medizinisches Instrument nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Rastmechanismus (4) einen Druckknopf (1 1 ) aufweist. 3. Medical instrument according to claim 1 or 2, characterized in that the latching mechanism (4) has a push button (1 1).
4. Medizinisches Instrument nach einem der vorigen Ansprüche, dadurch gekennzeichnet, dass der Rastmechanismus (4) eine Rastierkugel (15) aufweist, welche mit einer Innenverzahnung (16) in Wirkverbindung bringbar ist. 4. Medical instrument according to one of the preceding claims, characterized in that the latching mechanism (4) has a Rastierkugel (15) which can be brought into operative connection with an internal toothing (16).
PCT/EP2017/079494 2016-11-18 2017-11-16 Medical instrument WO2018091599A1 (en)

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DE102016122279.8A DE102016122279A1 (en) 2016-11-18 2016-11-18 medical instrument
DE102016122279.8 2016-11-18

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4406880A1 (en) * 1994-02-08 1995-08-10 Lutz Kothe Surgical instrument with two tong shanks hinged together
DE10138236A1 (en) * 2001-08-03 2003-02-13 Aesculap Ag & Co Kg Medical instrument such as pincers has one fixed and one movable arm forming bit, with bracket, guide-hole, clamps and contact element
DE10232086A1 (en) * 2002-07-15 2004-01-29 Rudolf Medizintechnik Gmbh & Co. Kg Surgical instrument has two grip p arts joined by a link, with two grip parts, lock and counter-lock, operating element, catch, lug and pawls
DE10353552A1 (en) * 2003-11-14 2005-06-30 Pajunk Gmbh Surgical instrument for removing tissue specimen of human body, has two handle parts with teeth, and pressure lever to lift one tooth from other tooth to actuate handle parts when pressure is exerted on lever
DE102014110883A1 (en) 2014-07-31 2016-02-04 Aesculap Ag Handle for a medical instrument with a latching mechanism

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4406880A1 (en) * 1994-02-08 1995-08-10 Lutz Kothe Surgical instrument with two tong shanks hinged together
DE10138236A1 (en) * 2001-08-03 2003-02-13 Aesculap Ag & Co Kg Medical instrument such as pincers has one fixed and one movable arm forming bit, with bracket, guide-hole, clamps and contact element
DE10232086A1 (en) * 2002-07-15 2004-01-29 Rudolf Medizintechnik Gmbh & Co. Kg Surgical instrument has two grip p arts joined by a link, with two grip parts, lock and counter-lock, operating element, catch, lug and pawls
DE10353552A1 (en) * 2003-11-14 2005-06-30 Pajunk Gmbh Surgical instrument for removing tissue specimen of human body, has two handle parts with teeth, and pressure lever to lift one tooth from other tooth to actuate handle parts when pressure is exerted on lever
DE102014110883A1 (en) 2014-07-31 2016-02-04 Aesculap Ag Handle for a medical instrument with a latching mechanism

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