Patent ID: 7699055
Filing Date: 2010-04-20
Classification: A61M

Abstract:
1. A tracheotomy cannula assembly, comprising: a cannula for passing through an incision in the neck and trachea; a shield member through which the cannula extends, which shield member is selectably positionable against the neck of a patient and about the incision there at, being characterized in that the shield member is capable of being selectably fixed to the cannula at various longitudinal locations thereon; wherein the shield member includes a housing having a plurality of walls forming an enclosure and a clamping device positioned within the housing, the cannula extending through an opening in the housing and being selectably fixed thereto by a selectable operation of the clamping device; whereof the clamping device also includes a spring biasing member operating to bias the clamping device to engagement with the cannula thereby placing the cannula into clamping engagement with the housing, the spring biasing member having spring portions facing away from each other; and wherein the clamping device further comprises actuation means for actuation thereof such that by compression of said actuation means in the direction into the housing the clamping engagement is released, wherein the releasing said compression of said actuation means automatically returns said clamping device into engagement with said cannula under the action of said spring biasing member.