Patent ID: 8500173

Claim:
A medical-engineering coupling mechanism for connecting two medical instruments having: a coupling plug and a coupling socket for insertion of the coupling plug, so that the coupling socket and the coupling plug can be secured to one another by at least one spring-loaded notching connection, with the notching connection comprising at least two notching hooks that are positioned on one of the coupling plug and the coupling socket, where the at least two notching hooks are in active engagement with at least one spring element configured as an elliptical spring washer, and at least one notching recess positioned on the other one of the coupling plug and the coupling socket for insertion of the at least two notching hooks; and characterized in that in the coupled position the at least one spring element presses the at least two notching hooks into the at least one notching recess and in that the notching connection is releasable by a release mechanism that is in active engagement with the at least one spring element and wherein the at least one spring element is positioned in a groove configured inside the notching hooks with the notching hooks sitting upright on the spring element and that in the coupled position the spring element fixes the notching hooks into the at least one notching recess and in the release position the at least one spring element presses the notching hooks out of the at least one notching recess.