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:
Nov. 15, 2011
Filed:
Sep. 26, 2008
Beat Knuchel, Ursenbach, CH;
Vinzenz Burgherr, Wabern, CH;
Christian Steiner, Eisenach, DE;
Meinrad Fiechter, Münsingen, CH;
Beat Knuchel, Ursenbach, CH;
Vinzenz Burgherr, Wabern, CH;
Christian Steiner, Eisenach, DE;
Meinrad Fiechter, Münsingen, CH;
Stryker Trauma SA, , CH;
Abstract
A telescopic strut for use with an external fixator includes a tube and a rod, especially a threaded rod being in threaded engagement with the tube. The tube comprises at least one hole for accommodating a ball, the ball having the spherical shape for engagement with the threaded rod. A sleeve is provided on the portion of the tube comprising the hole. The sleeve comprises a non-spherical inner cross-section. The greater diameter of the sleeve has a dimension which is at least the sum of the outer diameter of the threaded rod plus the diameter of an accommodating ball for allowing direct axial movement of the threaded rod against the tube in such a rotational position of the sleeve. The lesser diameter has a dimension to place the ball within the threaded rod for allowing a rotational movement of the threaded rod against the tube.