Patent ID: 8668684
Filing Date: 2014-03-11
Classification: A61B,A61M

Abstract:
1. A holding device for medical purposes having a carrier arm on whose distal end at least one medical instrument can be secured in an instrument intake and having at least one joint for positioning one or more of the carrier arm and the medical instrument, where the at least one joint can be converted between a position that releases the joint and a position that blocks the joint, wherein the at least one joint consists of at least two joint members, which enter into active connection with one another by means of catching elements that engage with one another, where the catching elements are aligned essentially perpendicular to the longitudinal direction of the carrier arm and are pre-tensed with respect to one another by at least one spring element, and that in the joint at least one hydraulically or pneumatically spreadable expansion element is positioned by which the at least one joint can be hydraulically or pneumatically converted into the position that releases the joint; wherein the at least one spring element is supported on a joint member to produce the pre-tensing between the joint members and transmits the spring force to the other joint member by means of a tensing element connected with the spring element.