US 8,945,097 B2Granted

Medical instrument

AssigneeKarl Storz GmbH & Co. KG

InventorsFrank Doll, Martin Hahn

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Abstract

A medical instrument with a proximal instrument part and a distal instrument part that are connected with one another by an elongated shaft. The distal instrument part includes a pivot element that is mounted to pivot with respect to the shaft and that can pivot by a translationally moveable actuation element. The pivot element is coupled with the actuating element by a coupling element, so that the coupling element is in a hinged connection with the pivot element by a first hinged connection and with the actuation element by a second hinged connection. The second hinged connection is controlled by at least one nonlinear guide formed by the distal instrument part in such a way that the pivot element can pivot both in the one pivot direction and in the other pivot direction. The actuating element is configured to be suitable for control by the nonlinear guide.

Claims11

Dependent claims

A medical instrument with a proximal instrument part and a distal instrument part that are connected with one another by an elongated shaft, such that the distal instrument part includes a pivot element that is mounted to pivot with respect to the shaft and that is pivotable by means of a translationally movable actuation element, wherein

the pivot element is coupled with the actuation element by means of at least one coupling element, so that the coupling element is in a hinged connection with the pivot element by a first hinged connection and with the actuation element by a second hinged connection,
the second hinged connection of the coupling element is controlled by at least one nonlinear channel or nonlinear groove formed by the distal instrument part in such a way that the pivot element is pivotable both in one pivot direction as well as in the other pivot direction, and
the nonlinear channel or nonlinear groove is configured to guide the actuation element in nonlinear movement.

Dependencies are inferred from the claim text.

Facts

Application: 13/045,235Filed 10 Mar 2011
Priority: DE 10 2010 010 94710 Mar 2010
Published: US 2011/0264079 A127 Oct 2011
Granted: 3 Feb 2015
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

A61B 17/4241
Gynaecological or obstetrical instruments or methods: instruments for manoeuvring or retracting the uterus, e.g. during laparoscopic surgery
A61B 2017/00853
Material properties: low friction, hydrophobic and corrosion-resistant fluorocarbon resin coating
A61B 2017/2927
Details of heads or jaws: the angular position of the head being adjustable with respect to the shaft
A61B 2017/2934
Camming or guiding means: arcuate shaped guiding means