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:
May. 01, 2018
Filed:
Feb. 27, 2015
Boss Instruments, Ltd, Gordonsville, VA (US);
Sean W. Higgins, Richmond, VA (US);
BOSS Instruments, LTD, Gordonville, VA (US);
Abstract
A rotatable arm is provided which provides an ability to rotate a working end of an instrument such as a surgical retractor. Rotation of a key hub transfers torque to a drive hub which causes an extension or retraction of a lead screw along a center axis of the rotating arm. The extension or retraction forces a drive pin to bear against sides of helical slots of a driven tip, producing a rotation of the driven tip along a pitch line of the helical slots. The driven tip is connected to the working end such that the two rotate together. The rotatable arm has a low profile, a non-reversible torque transmission, and may be hermetically sealed.