Maria E Currie1,2,3, Ali Talasaz2, Reiza Rayman1,4, Michael W A Chu1,2,4,3, Bob Kiaii1,2,4,3, Terry Peters4,3, Ana Luisa Trejos5,2, Rajni Patel5,2,4. 1. Division of Cardiac Surgery, Department of Surgery, London Health Sciences Centre, London, Ontario, Canada. 2. Canadian Surgical Technologies and Advanced Robotics, Lawson Health Research Institute, London, Ontario, Canada. 3. Medical Imaging Laboratory, Robarts Research Institute, Western University, London, Ontario, Canada. 4. Department of Surgery, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada. 5. Department of Electrical and Computer Engineering, Western University, London, Ontario, Canada.
Abstract
BACKGROUND: The objective of this work was to determine the effect of both direct force feedback and visual force feedback on the amount of force applied to mitral valve tissue during ex vivo robotics-assisted mitral valve annuloplasty. METHODS: A force feedback-enabled master-slave surgical system was developed to provide both visual and direct force feedback during robotics-assisted cardiac surgery. This system measured the amount of force applied by novice and expert surgeons to cardiac tissue during ex vivo mitral valve annuloplasty repair. RESULTS: The addition of visual (2.16 ± 1.67), direct (1.62 ± 0.86), or both visual and direct force feedback (2.15 ± 1.08) resulted in lower mean maximum force applied to mitral valve tissue while suturing compared with no force feedback (3.34 ± 1.93 N; P < 0.05). CONCLUSIONS: To achieve better control of interaction forces on cardiac tissue during robotics-assisted mitral valve annuloplasty suturing, force feedback may be required.
BACKGROUND: The objective of this work was to determine the effect of both direct force feedback and visual force feedback on the amount of force applied to mitral valve tissue during ex vivo robotics-assisted mitral valve annuloplasty. METHODS: A force feedback-enabled master-slave surgical system was developed to provide both visual and direct force feedback during robotics-assisted cardiac surgery. This system measured the amount of force applied by novice and expert surgeons to cardiac tissue during ex vivo mitral valve annuloplasty repair. RESULTS: The addition of visual (2.16 ± 1.67), direct (1.62 ± 0.86), or both visual and direct force feedback (2.15 ± 1.08) resulted in lower mean maximum force applied to mitral valve tissue while suturing compared with no force feedback (3.34 ± 1.93 N; P < 0.05). CONCLUSIONS: To achieve better control of interaction forces on cardiac tissue during robotics-assisted mitral valve annuloplasty suturing, force feedback may be required.