Telesurgery at SRI
Precise servo-mechanics
Force feedback
3-D visualization
Hand motions reproduced with 5-degrees of freedom
Sensitive scalable tactile response
to 100x magnification
Philip Green led a team at SRI that assembled the first working model of a telepresence surgery system in 1991, and with funding from the NIH Green went on to design and build a demonstration system. The proposal contained the diagram shown in Fig. 1, showing the concept of workstation, viewing arrangement, and manipulation configuration used in the surgical telepresence systems today. In1992 SRI obtained funding for a second-generation telepresence system for emergency surgeries in battlefield situations. For this second-generation system the SRI team developed the precise servo-mechanics, force-feedback, 3-D visualization and surgical instruments needed to build a computer-driven system that could accurately reproduce a surgeon's hand motions with remote surgical instruments having 5-degrees of freedom and extremely sensitive tactile response.