System and method for sensing shape of elongated instrument
US9500472B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 4, 2012 |
| Grant date | Nov 22, 2016 |
| Priority date | — |
| Expiry date | Jun 23, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/0166
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An instrument system that includes a first optical fiber, a second optical fiber and a controller is provided. The first optical fiber is operatively coupled to an elongate body that is adapted to be placed inside a patient. The second optical fiber is operatively coupled to the patient, to an actuating element adapted to actuate the elongate body, or to a portion of an imaging system adapted to identify a location of the portion relative to the elongate body. The controller is operatively coupled to the first optical fiber and the second optical fiber and is adapted to receive a first signal from the strain sensor provided on the first optical fiber, receive a second signal from the strain sensor provided on the second optical fiber; and determine a position or orientation of the elongate body based on the first signal and based on the second signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.