DE102005051367A1 - Surgical jaw instrument e.g. for endoscopic surgery, has two joints having angle which can be moved relative to each other with bearing has joint section and far working section such as surgical muzzle instrument - Google Patents

Surgical jaw instrument e.g. for endoscopic surgery, has two joints having angle which can be moved relative to each other with bearing has joint section and far working section such as surgical muzzle instrument Download PDF

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DE102005051367A1
DE102005051367A1 DE200510051367 DE102005051367A DE102005051367A1 DE 102005051367 A1 DE102005051367 A1 DE 102005051367A1 DE 200510051367 DE200510051367 DE 200510051367 DE 102005051367 A DE102005051367 A DE 102005051367A DE 102005051367 A1 DE102005051367 A1 DE 102005051367A1
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instrument
surgical
sections
section
joint
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Uwe Dr. Schöler
Thomas Aue
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Olympus Winter and Ibe GmbH
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Olympus Winter and Ibe GmbH
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A61B18/1442—Probes having pivoting end effectors, e.g. forceps
    • A61B18/1445—Probes having pivoting end effectors, e.g. forceps at the distal end of a shaft, e.g. forceps or scissors at the end of a rigid rod
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/0046—Surgical instruments, devices or methods, e.g. tourniquets with a releasable handle; with handle and operating part separable
    • A61B2017/00473—Distal part, e.g. tip or head
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00477—Coupling
    • 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
    • A61B2017/2926—Details of heads or jaws
    • 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
    • A61B2017/2926—Details of heads or jaws
    • A61B2017/2931—Details of heads or jaws with releasable head
    • 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
    • A61B2017/2926—Details of heads or jaws
    • A61B2017/2932—Transmission of forces to jaw members
    • A61B2017/2939—Details of linkages or pivot points
    • A61B2017/294—Connection of actuating rod to jaw, e.g. releasable
    • 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
    • A61B2017/2926—Details of heads or jaws
    • A61B2017/2945—Curved jaws
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A61B2018/1405—Electrodes having a specific shape
    • A61B2018/1425—Needle
    • A61B2018/1432—Needle curved
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A61B2018/1495—Electrodes being detachable from a support structure

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

Abstract

The instrument has two joints (4) having an angle which can be moved relative to each other. The bearing has a joint section (7) and a far working section (6) such as a surgical muzzle instrument (1). Jaw parts (5) of the instrument of the two sections are separate and fastened together at an attachment location (8). The two sections are made of different material.

Description

Die Erfindung betrifft ein chirurgisches Maulinstrument der im Oberbegriff des Anspruchs 1 genannten Art.The The invention relates to a surgical jaw instrument in the preamble of claim 1 type.

Solche Maulinstrumente sind in unterschiedlichen Ausführungsformen bekannt. Sie werden in der offenen Chirurgie in der Grundform einer Haushaltsschere oder einer Werkzeugzange verwendet. In Ausführung für die endoskopische Chirurgie bzw. Laparoskopie sitzt das Maul an einem langgestreckten Schaft und wird z.B. über eine Betätigungsstange von am proximalen Ende des Schaftes angeordneten beweglichen Handgriffen betätigt. Sie dienen in der Chirurgie als Zangen zum Halten während einer Operation. Mit Zangen kann z.B. auch genäht werden. Zangen werden auch mit Hochfrequenzbeaufschlagung verwendet, insbesondere als bipolare Zangen, bei denen die beiden Maulteile an unterschiedliche Pole ei ner Hochfrequenzquelle angeschlossen sind, um zwischen den Maulteilen gefasstes Gewebe zu koagulieren. In Ausführung als Scheren dienen die Maulinstrumente zum Zerschneiden von Gewebe, wobei Scheren auch mit Hochfrequenzbeaufschlagung verwendet werden, insbesondere in bipolarer Ausführung, um Gewebe leichter und unter sofortiger Koagulation zu schneiden.Such Foot instruments are known in different embodiments. you will be in open surgery in the basic form of a household scissors or a tool tongs used. In execution for endoscopic surgery or laparoscopy, the mouth sits on an elongated shaft and is used e.g. above an actuating rod of arranged at the proximal end of the shaft movable handles actuated. They serve as pliers in surgery during a surgery Surgery. With pliers, e.g. also be sewn. Pliers are too used with Hochfrequenzbeaufschlagung, especially as a bipolar Pliers in which the two jaw parts to different poles A high frequency source is connected to the jaws coagulated tissue. The jaw instruments are used as scissors for cutting tissue, with scissors also with Hochfrequenzbeaufschlagung used, especially in bipolar design, to make tissues lighter and more flexible to cut under immediate coagulation.

Bekannte gattungsgemäße Maulinstrumente weisen einstückige Maulteile auf, die im Arbeitsabschnitt im Falle einer Schere mit einer Schneide und im Falle einer Zange mit einer Greiffläche ausgebildet sind. Die Gelenkabschnitte sind in meist komplizierter Weise als Lagerstellen, z.B. mit Zapfen oder Bohrungen, geformt und im Falle beispielsweise bipolarer Zangen gegeneinander isoliert ausgebildet.Known have generic mouth instruments one-piece Jaws that are in the working section in the event of a scissors with a cutting edge and in the case of a pair of pliers with a gripping surface are formed. The joint sections are in most complicated ways as bearing points, e.g. with pins or holes, shaped and in the case, for example bipolar forceps insulated against each other.

Dabei sind die Anforderungen an die beiden Abschnitte eines Maulteiles sehr unterschiedlich. Beim Gelenkabschnitt muss angesichts der erforderlichen, sehr geringen Außendurchmesser und der erforderlichen Lagerungsgenauigkeit hochpräzise gefertigt werden, wobei die Anforderungen wachsen, wenn im Falle einer bipolaren Zange das Isolierproblem hinzukommt. Dagegen sind beim Arbeitsabschnitt die Anforderungen bei der Fertigungsgenauigkeit wesentlich geringer. Hier tritt aber das Problem auf, dass Zangen und auch Scheren zumeist im Arbeitsabschnitt in einer großen Zahl von Varianten gefertigt werden müssen. Sowohl bei Zangen als auch bei Scheren werden Arbeitsabschnitte mit kurzer Länge und auch mit großer Länge gefordert sowie mit gerader und gebogener Formgebung. Bei Zangen kommen noch unterschiedliche Profilgebungen in der Greiffläche hinzu, die von den Ärzten je nach Anwendungsfall verlangt werden.there are the requirements for the two sections of a jaw part very different. At the joint section, given the required, very small outside diameter and the required storage accuracy manufactured with high precision be, with the requirements grow, if in the case of bipolar Pliers the insulation problem is added. By contrast, the working section the requirements in terms of manufacturing accuracy significantly lower. Here, however, the problem arises that pliers and scissors mostly manufactured in the working section in a large number of variants Need to become. Both pliers and scissors become work sections short length and also with big ones Length required as well as with straight and curved shape. Pliers are still coming different profiling in the gripping area added by the doctors ever be requested according to application.

Bei den bekannten einstückigen Maulteilen gestaltet sich daher die Fertigung sehr aufwendig, da unterschiedlich geformte Maulteile mit hinsichtlich der hochgenauen Ausbildung der Gelenkabschnitte erforderlicher Präzision gefertigt werden müssen. Es müssen also relativ kleine Stückzahlen mit sehr hoher Präzision gefertigt werden, was die Produktionskosten stark erhöht.at the well-known one-piece Mouth parts, therefore, the production is very complex, because different Molded jaws with respect to the highly accurate training of Joint sections required precision must be made. So it has to be relatively small quantities with very high precision be manufactured, which greatly increases the cost of production.

Die Aufgabe der vorliegenden Erfindung besteht darin, ein chirurgisches Maulinstrument der eingangs genannten Art zu schaffen, bei dem die Fertigungskosten geringer sind.The Object of the present invention is a surgical Foot instrument of the type mentioned above, in which the Production costs are lower.

Diese Aufgabe wird mit den Merkmalen des Anspruches 1 gelöst:
Erfindungsgemäß besteht ein Maulteil aus zwei Abschnitten, die getrennt ausgebildet und aneinander befestigt sind. Dies hat den wesentlichen Vorteil, dass die Abschnitte gesondert gefertigt werden können. Bei den Arbeitsabschnitten kann je nach Ausbildung als Zange oder Schere sowie nach speziell verlangter Formgebung die Fertigungsqualität deutlich geringer sein. Die sehr präzise auszubildenden Gelenkabschnitte sind gesondert gefertigt und es ist vor allem möglich, einen in großer Serie gefertigten Gelenkabschnitt für alle unterschiedlichen Arbeitsabschnitte zu verwenden. Dadurch lassen sich die Gesamtherstellungskosten deutlich senken.This object is achieved with the features of claim 1:
According to the invention, a jaw part consists of two sections, which are formed separately and fastened to one another. This has the significant advantage that the sections can be made separately. Depending on the training as a pair of pliers or scissors as well as specially required shaping, the manufacturing quality can be significantly lower in the work sections. The very precisely designed joint sections are made separately and it is especially possible to use a manufactured in large series joint section for all different working sections. This can significantly reduce the overall production costs.

Die beiden Abschnitte können aus demselben Material bestehen, bestehen vorteilhaft jedoch gemäß Anspruch 2 aus unterschiedlichen Materialien. Die Gelenkabschnitte können zum Beispiel aus besonders gut spanbarem Stahl bestehen, während die Arbeitsabschnitte zum Beispiel als Gussteile oder Sinterteile hergestellt werden und im Material dafür optimiert sind. Auch hierdurch können wiederum Kosten gespart werden.The both sections can consist of the same material, but are advantageous according to claim 2 of different materials. The joint sections can for Example consist of particularly good spanbarem steel, while the Working sections made for example as castings or sintered parts and optimized in the material for it are. Also by this can In turn, costs are saved.

An der Befestigungsstelle können die Abschnitte z.B. stumpf aneinander befestigt werden. Vorteilhaft sind jedoch die Merkmale des Anspruches 3 vorgese hen. Ein Formschlusssteckeingriff sichert die Befestigungsstelle vor der Endverbindung und erleichtert die Montage.At the attachment point can the sections e.g. be stumped together. Advantageous However, the features of claim 3 are vorgese hen. A positive locking engagement secures the attachment site from the end connection and facilitates the assembly.

Die Befestigungsstelle kann beispielsweise als Klemmverbindung, beispielsweise mittels des Formschlusssteckeingriffes ausgebildet sein. Sie kann beispielsweise auch als Schraubverbindung ausgebildet sein. Vorteilhaft sind jedoch die Merkmale des Anspruches 4 vorgesehen. Durch Schweißen, Löten oder Kleben können die Abschnitte mit der erforderlichen hohen Festigkeit verbunden werden, gegebenenfalls nach vorheriger Herstellung eines Formschlusseingriffes, der die Abschnitte während des Verbindungsvorganges aneinander sichert.The Fixing point, for example, as a clamping connection, for example be formed by means of the positive locking engagement. she can for example, be designed as a screw connection. Advantageous However, the features of claim 4 are provided. By welding, soldering or Can stick the sections associated with the required high strength optionally after prior production of a positive engagement, the sections during the Securing connection process to each other.

In der Zeichnung ist die Erfindung beispielsweise und schematisch dargestellt. Es zeigen:In the drawing, the invention is for example and shown schematically. Show it:

1: eine teilgeschnittene Seitenansicht des Maules eines erfindungsgemäßen Maulinstrumentes, 1 FIG. 2: a partially sectioned side view of the mouth of a jaw instrument according to the invention, FIG.

2: einen Schnitt nach Linie 2-2 in 1, 2 : a cut to line 2-2 in 1 .

3: einen Schnitt nach Linie 3-3 in 1 und 3 : a section along line 3-3 in 1 and

4–6: Ausführungsvarianten zu 3. 4 - 6 : Variants to 3 ,

1 zeigt den distalen Endbereich eines chirurgischen Maulinstrumentes 1, das im Ausführungsbeispiel als laparoskopische Zange ausgebildet ist. 1 shows the distal end portion of a surgical jaw instrument 1 , which is formed in the embodiment as a laparoscopic forceps.

Das Ende eines Schaftrohres 2 wird von zwei Wangen 3 überragt, die eine querstehende Achse 4 tragen. Auf der Achse 4 sind zwei im Ausführungsbeispiel identisch ausgebildete Maulteile 5 gelagert, die jeweils aus einem Arbeitsab schnitt 6 und einem Gelenkabschnitt 7 bestehen. Wie 1 zeigt, sind dabei jeweils der Arbeitsabschnitt 6 und der Gelenkabschnitt 7 als getrennte Teile ausgebildet, die aneinander an einer Befestigungsstelle 8 verbunden sind. In 1 sind sie an der Befestigungsstelle 8 voneinander getrennt dargestellt.The end of a shaft tube 2 gets from two cheeks 3 surmounted by a transverse axis 4 wear. On the axis 4 are two identical in the embodiment jaw parts 5 stored, each cut from a Arbeitsab 6 and a joint section 7 consist. As 1 shows are each the working section 6 and the joint section 7 formed as separate parts which abut each other at an attachment point 8th are connected. In 1 they are at the attachment point 8th shown separated from each other.

An der Befestigungsstelle 8 ist im Ausführungsbeispiel am Arbeitsabschnitt 6 ein Zapfen 9 vorgesehen und am Gelenkabschnitt 7 eine Vertiefung 10.At the attachment point 8th is the working section in the embodiment 6 a cone 9 provided and at the joint portion 7 a depression 10 ,

2 zeigt im Schnitt nach Linie 2-2 in 1 die Querschnittform des Zapfens 9, der einen unrunden Querschnitt aufweist. Die Vertiefung 10 hat einen entsprechenden Querschnitt, so dass der Zapfen 9 formschlüssig und verdrehsicher in die Vertiefung 10 passt. Nach Montage durch Einstecken sind die Abschnitte 6 und 7 fest miteinander zu verbinden. Dies kann durch Verschweißung am Rand, durch flächige Verlötung oder flächige Verklebung erfolgen. 2 shows in section according to line 2-2 in 1 the cross-sectional shape of the pin 9 which has a non-circular cross-section. The depression 10 has a corresponding cross-section, so that the pin 9 positive fit and secure against rotation in the recess 10 fits. After mounting by plugging in the sections 6 and 7 firmly connect with each other. This can be done by welding on the edge, by surface soldering or surface bonding.

Wie 1 in einem stark vereinfachten Ausführungsbeispiel eines Zangengelenkes zeigt, weisen die Gelenkabschnitte 7 jeweils eine rückwärtige Verlängerung 11 auf, an denen sie mit Lagern 12 an Koppelgliedern 13 gelagert sind, welche mit einem gemeinsamen Lager 14 am distalen Ende einer im Schaftrohr 2 verlaufenden Betätigungsstange 15 gelagert sind.As 1 shows in a highly simplified embodiment of a forceps joint, have the joint portions 7 one rearward extension each 11 on where they are with camps 12 at coupling links 13 are stored, which with a common warehouse 14 at the distal end of a shaft tube 2 extending actuating rod 15 are stored.

Am nicht dargestellten proximalen Ende des Schaftrohres 2 ist eine Betätigungseinrichtung vorgesehen, die durch Relativbetätigung der Betätigungsstange 15 gegenüber dem Schaftrohr 2 in dessen Achsrichtung die Maulteile 5 öffnen und schließen kann.At the proximal end of the shaft tube, not shown 2 an actuator is provided by the relative operation of the actuating rod 15 opposite the shaft tube 2 in the axial direction of the jaw parts 5 open and close.

3 zeigt im Schnitt der Linie 3-3 in 1 eine Draufsicht auf die Greiffläche 16 des Arbeitsabschnittes 6. Es handelt sich hierbei um den Arbeitsabschnitt einer geraden Zange. 3 shows in section the line 3-3 in 1 a plan view of the gripping surface 16 of the working section 6 , This is the working section of a straight pair of pliers.

4 zeigt in einer Ausführungsvariante einen Arbeitsabschnitt 46 einer Zange, bei der die Maulteile seitlich gebogen sind. 4 shows in a variant embodiment, a working section 46 a pliers, in which the jaw parts are bent laterally.

5 zeigt in einer weiteren Ausführungsvariante einen Arbeitsabschnitt 56 einer kurzen Zange. 5 shows in a further embodiment, a working section 56 a short pair of pliers.

6 zeigt in einer weiteren Ausführungsvariante einen Arbeitsabschnitt 66 für ein als Schere ausgebildetes Maulinstrument mit einer seitlichen Schneidenfläche 67. 6 shows in a further embodiment, a working section 66 for a scissor-trained jaw instrument with a lateral cutting surface 67 ,

Da bei allen gezeigten Ausführungsformen die Arbeitsabschnitte 6, 16, 46, 56, 66 getrennt von den Gelenkabschnitten 7 ausgebildet sind, kann das chirurgische Maulinstrument 1 mit den Gelenkabschnitten 7 in hierfür erforderlicher Weise hochpräzise, z.B. mittels spanender Fertigung produziert werden. Das chirurgische Maulinstrument 1 kann in nicht dargestellter Weise in seinem Gelenk mit elektrischen Isolierungen ausgebildet sein, die die beiden Gelenkteile 7 gegeneinander isolieren, so dass die beiden Maulteile 5 bei bipolarer Ausführung an unterschiedliche elektrische Spannungen angeschlossen sein können.Since in all the embodiments shown, the working sections 6 . 16 . 46 . 56 . 66 separated from the joint sections 7 are formed, the surgical jaw instrument 1 with the joint sections 7 in this required manner with high precision, for example produced by cutting production. The surgical jaw instrument 1 can be formed in a manner not shown in its joint with electrical insulation, which the two joint parts 7 isolate against each other, leaving the two jaws 5 can be connected to different electrical voltages in bipolar design.

Die gesondert gefertigten Arbeitsabschnitte können auf andere Weise hergestellt werden, z.B. als Gussteile, als Sinterteile oder dergleichen bzw. in unterschiedlicher Formgebung, z.B. entsprechend den in den 3–6 dargestellten Ausführungsvarianten.The separately manufactured work sections can be produced in other ways, for example as castings, as sintered parts or the like or in different shapes, for example according to the in the 3 - 6 illustrated embodiments.

Im dargestellten Ausführungsbeispiel ist dargestellt, dass zur Herstellung des Formschlusssteckeingriffes an der Befestigungsstelle 8 am Arbeitsabschnitt 6 der Zapfen 9 und am Gelenkabschnitt 7 die Vertiefung 10 ausgebildet sind. Es kann auch umgekehrt am Arbeitsabschnitt 6 eine Vertiefung und am Gelenkabschnitt ein Zapfen angeordnet sein, was unter Umständen die Fertigung vereinfacht. Die Formgebung des Zapfens 9 mit der in 2 dargestellten unrunden Querschnittsform kann auch anders gewählt sein, z.B. mit runder Querschnittsform oder rechteckiger Querschnittsform. Es sind auch andere Formschlusseingriffsarten möglich, die eine Steckverbindung vor endgültiger Befestigung mittels Schweißen oder dergleichen ermöglicht. Es kann auch auf den Formschlusssteckeingriff verzichtet werden und es können die Abschnitte 6 und 7 mit flachen Stirnflächen aneinander z.B. mittels Verschweißung befestigt werden.In the illustrated embodiment, it is shown that for the production of the interlocking engagement at the attachment site 8th at the working section 6 the pin 9 and at the joint section 7 the depression 10 are formed. It can also be reversed on the working section 6 a recess and be arranged on the hinge portion a pin, which simplifies manufacturing under certain circumstances. The shape of the pin 9 with the in 2 shown non-circular cross-sectional shape may also be chosen differently, for example with a round cross-sectional shape or rectangular cross-sectional shape. There are also other Formschlusseingriffsarten possible that allows a connector before final attachment by welding or the like. It can also be dispensed with the interlocking key engagement and it can sections 6 and 7 be attached with flat faces to each other, for example by means of welding.

Anders, als in den Figuren dargestellt, kann auch eines der beiden Maulteile gegenüber dem Schaft feststehend ausgebildet sein. Ferner kann auch nur eines der Maulteile mit der erfindungsgemäßen Abschnittsteilung ausgebildet sein kann, während im anderen Maulteil die beiden Abschnitte in bekannter Weise einstückig sind.Differently, as shown in the figures, also one of the two jaw parts opposite the Shank be formed stationary. Furthermore, only one of the jaw parts may be formed with the section division according to the invention, while in the other jaw part, the two sections are in one piece in a known manner.

Claims (4)

Chirurgisches Maulinstrument (1) mit einem Maul, bestehend aus zwei in einem Gelenk (4) zu relativer Winkelverstellung aneinander gelagerten Maulteilen (5), die jeweils einen proximalen, die Lagerstelle (4) ausbildenden Gelenkabschnitt (7) und einen distalen, zum Arbeitsangriff ausgebildeten Arbeitsabschnitt (6, 46, 56, 66) aufweisen, dadurch gekennzeichnet, dass bei wenigstens einem der Maulteile (5) die beiden Abschnitte (7; 6, 46, 56, 66) als gesonderte, an einer Befestigungsstelle (8) aneinander befestigte Teile ausgebildet sind.Surgical jaw instrument ( 1 ) with a mouth consisting of two in one joint ( 4 ) relative angular adjustment of jaws ( 5 ), each one proximal, the bearing ( 4 ) forming joint section ( 7 ) and a distal, trained for work attack working section ( 6 . 46 . 56 . 66 ), characterized in that at least one of the jaws ( 5 ) the two sections ( 7 ; 6 . 46 . 56 . 66 ) as a separate, at an attachment point ( 8th ) are attached to each other parts. Chirurgisches Maulinstrument nach Anspruch 1, dadurch gekennzeichnet, dass die beiden Abschnitte (7; 6, 46, 56, 66) aus unterschiedlichen Materialien bestehen.A surgical jaw instrument according to claim 1, characterized in that the two sections ( 7 ; 6 . 46 . 56 . 66 ) consist of different materials. Chirurgisches Maulinstrument nach Anspruch 1, dadurch gekennzeichnet, dass die Besfestigungsstelle (8) mit Formschlusssteckeingriff (9, 10) ausgebildet ist.A surgical jaw instrument according to claim 1, characterized in that the seizing point ( 8th ) with positive locking engagement ( 9 . 10 ) is trained. Chirurgisches Maulinstrument nach Anspruch 1, dadurch gekennzeichnet, dass die beiden Abschnitte (7; 6, 46, 56, 66) aneinander mittels Schweißung, Lötung oder Klebung befestigt sind.A surgical jaw instrument according to claim 1, characterized in that the two sections ( 7 ; 6 . 46 . 56 . 66 ) are attached to each other by means of welding, soldering or gluing.
DE200510051367 2005-10-25 2005-10-25 Surgical jaw instrument e.g. for endoscopic surgery, has two joints having angle which can be moved relative to each other with bearing has joint section and far working section such as surgical muzzle instrument Withdrawn DE102005051367A1 (en)

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