Calculation of redundant bend in multi-core fiber for safety
AssigneeIntuitive Surgical Operations, Inc.
InventorsPatrick Roye, Mark E. Froggatt, Dawn K. Gifford
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AssigneeIntuitive Surgical Operations, Inc.
InventorsPatrick Roye, Mark E. Froggatt, Dawn K. Gifford
Estimating the term…
A fiber includes M primary cores and N redundant cores, where M an integer is greater than two and N is an integer greater than one. Interferometric circuitry detects interferometric pattern data associated with the M primary cores and the N redundant cores when the optical fiber is placed into a sensing position. Data processing circuitry calculates a primary core fiber bend value for the M primary cores and a redundant core fiber bend value for the N redundant cores based on a predetermined geometry of the M primary cores and the N redundant cores in the fiber and detected interferometric pattern data associated with the M primary cores and the N redundant cores. The primary core fiber bend value and the redundant core fiber bend value are compared in a comparison. The detected data for the M primary cores is determined reliable or unreliable based on the comparison. A signal is generated in response to an unreliable determination.
A robotic system comprising:
A method of operating a medical system comprising a catheter device, the catheter device comprising an optical fiber sensor, the optical fiber sensor extending through a lumen of the catheter device and comprising a plurality of optical cores, the method comprising:
One or more non-transitory computer storage media storing instructions which, when executed by one or more processors, cause the one or more processors to perform operations for operating a medical system comprising a catheter device, an associated drive unit, and a plurality of interferometric interrogators, the catheter device comprising an optical fiber sensor extending through a lumen of the catheter device, the optical fiber sensor comprising a plurality of optical cores, the plurality of interferometric interrogators configured to measure interference patterns for the plurality of optical cores, the operations comprising:
Dependencies are inferred from the claim text.