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. 20, 2018
Filed:
Dec. 07, 2015
Intuitive Surgical Operations, Inc., Sunnyvale, CA (US);
Mark Froggatt, Blacksburg, VA (US);
Dawn K. Gifford, Blacksburg, VA (US);
Stephen T. Kreger, Blacksburg, VA (US);
Alexander K. Sang, Christiansburg, VA (US);
Jeffrey T. Lacroix, Blacksburg, VA (US);
Eric E. Sanborn, Blacksburg, VA (US);
Intuitive Surgical Operations, Inc., Sunnyvale, CA (US);
Abstract
An optical fiber includes multiple optical waveguides configured in the fiber. An interferometric measurement system mitigates or compensates for the errors imposed by differences in a shape sensing optical fiber's response to temperature and strain. A 3-D shape and/or position are calculated from a set of distributed strain measurements acquired for a multi-core optical shape sensing fiber that compensates for these non-linear errors using one or more additional cores in the multicore fiber that react differently to temperature changes than the existing cores.