MRI-Compatible Fiber-Optically Sensorized Surgical Tools for Precision Removal of Solid Tumors

Award Information
Agency: Department of Defense
Branch: Army
Contract: W81XWH-08-C-0103
Agency Tracking Number: A08A-038-0091
Amount: $99,999.00
Phase: Phase I
Program: STTR
Awards Year: 2008
Solicitation Year: 2008
Solicitation Topic Code: A08-T038
Solicitation Number: 2008.A
Small Business Information
2363 Calle Del Mundo, Santa Clara, CA, 95054
DUNS: 877452664
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Richard Black
 Chief Scientist
 (408) 565-9000
Business Contact
 Behzad Moslehi
Title: CEO/CTO
Phone: (408) 565-9004
Research Institution
 Mark Cutkosky
 Building 560, 424 Panama Mall
Stanford, CA, 94305 2232
 (650) 450-0589
 Nonprofit college or university
Robotic surgery is a recent breakthrough that is still rapidly emerging. Even the best surgical robotic tools lack the sense of touch that surgeons use to great advantage in the removal of tumors. IFOS proposes to address this shortcoming by embedding arrays of optical fiber Bragg grating (FBG) sensors into metal-free miniature robotic surgery end-effectors. Multiple FBGs can be placed along a single fiber and optically multiplexed to create a tool capable of resolving multiple contact forces and locations as well as temperature profiles. FBG sensors are very small, and are sensitive to mechanical strains as small as 0.1 microstrain. They are more robust than conventional strain gauges, and immune to electromagnetic interference, making them compatible with MRIs. Phase I will explore the feasibility of MRI-compatible fiber-sensorized tools enhancing surgical accuracy for tumor removal. It will include design of an optical interrogator for real-time processing of signals from multiple FBGs, and development of new fabrication methods for bonding optical fibers to surgical tools. The end result will be a sensitive and robust prototype tool that will give physicians unprecedented ability to monitor and respond to forces at the distal ends of surgical and endoscopic instruments, whether used in-situ or remotely.

* information listed above is at the time of submission.

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