The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 03, 2015
Filed:
Aug. 30, 2012
Stuart Coleman, Dundee, GB;
Stuart Coleman, Dundee, GB;
University of Dundee, , GB;
Abstract
A medical instrument including a shaft rotating device for rotating a shaft of a medical instrument about its longitudinal axis relative to a handle of the medical instrument The shaft rotating device includes a operating element arranged at a proximal portion of the shaft such that the shaft is rotatable relative to the handle against frictional forces. The shaft rotating device includes a coil spring arrangement having a surface and being in frictional contact with a surface of a counterpart for keeping the shaft and the handle rotationally stationary with respect to each other and movable against frictional forces. The operating element is operatively connected with the coil spring arrangement such that torque applied to the operating element decreases the frictional forces, while the shaft and coil spring arrangement are operatively connected such that torque applied to a distal portion of the shaft increases the frictional forces.