Design and application of compliant mechanisms for surgical tools.

This paper introduces the benefits of exploiting elasticity in the engineering design of surgical tools, in general, and of minimally invasive procedures, in particular. Compliant mechanisms are jointless mechanisms that rely on elastic deformation to transmit forces and motion. The lack of traditional joints in these single-piece flexible structures offers many benefits, including the absence of wear debris, pinch points, crevices, and lubrication. Such systems are particularly amenable to embedded sensing for haptic feedback and embedded actuation with active-material actuators. The paper provides an overview of design synthesis methods developed at the Compliant Systems Design Laboratory and focuses specifically on surgical applications. Compliant systems have potential to integrate. well within the constraints of laparoscopic procedures and telerobotic surgery. A load-path representation is used within a genetic algorithm to solve two gripper example problems. In addition, the paper illustrates the design and construction of an organ (kidney) manipulator for use in minimally invasive procedures.

[1]  S. Kota,et al.  An Effective Method of Synthesizing Compliant Adaptive Structures using Load Path Representation , 2005 .

[2]  M. Treat,et al.  Postoperative cell mediated immune response is better preserved after laparoscopic vs open colorectal resection in humans , 2003, Surgical Endoscopy And Other Interventional Techniques.

[3]  Mary Frecker,et al.  Analytical modeling of a segmented unimorph actuator using electrostrictive P(VDF-TrFE) copolymer , 2004 .

[4]  J H Peters,et al.  Clinical and physiologic comparison of laparoscopic and open Nissen fundoplication. , 1995, Journal of the American College of Surgeons.

[5]  David E. Goldberg,et al.  Genetic Algorithms in Search Optimization and Machine Learning , 1988 .

[6]  J. Bodner,et al.  First experiences with the da Vinci operating robot in thoracic surgery. , 2004, European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery.

[7]  John H. Holland,et al.  Adaptation in Natural and Artificial Systems: An Introductory Analysis with Applications to Biology, Control, and Artificial Intelligence , 1992 .

[8]  J. Fleshman,et al.  A comparison of laparoscopically assisted and open colectomy for colon cancer. , 2004, The New England journal of medicine.

[9]  Eric J Hanly,et al.  Technology in the operating suite. , 2005, JAMA.

[10]  Sridhar Kota,et al.  Strategies for systematic synthesis of compliant mems , 1994 .

[11]  Mark S Slaughter,et al.  Minimally invasive mitral valve repair using the da Vinci robotic system. , 2004, The Annals of thoracic surgery.

[12]  Mary Frecker,et al.  Design of a PZT Bimorph Actuator Using a Metamodel-Based Approach , 2002 .

[13]  Ashutosh Tewari,et al.  Prospective comparison of radical retropubic prostatectomy and robot-assisted anatomic prostatectomy: the Vattikuti Urology Institute experience. , 2002, Urology.

[14]  Kerr-Jia Lu,et al.  Synthesis of shape morphing compliant mechanisms. , 2004 .

[15]  Kerr-Jia Lu.  PARAMETERIZATION STRATEGY FOR OPTIMIZATION OF SHAPE MORPHING COMPLIANT MECHANISMS USING LOAD PATH REPRESENTATION , 2003 .

[16]  Mary Frecker,et al.  Topological synthesis of compliant mechanisms using multi-criteria optimization , 1997 .

[17]  John H. Holland,et al.  Adaptation in Natural and Artificial Systems: An Introductory Analysis with Applications to Biology, Control, and Artificial Intelligence , 1992 .

[18]  Sridhar Kota,et al.  An Energy Formulation for Parametric Size and Shape Optimization of Compliant Mechanisms , 1999 .

[19]  Mary Frecker,et al.  Design of a piezoelectric inchworm actuator and compliant end effector for minimally invasive surgery , 1999, Smart Structures.

[20]  Sridhar Kota,et al.  Topological Synthesis of Compliant Mechanisms Using Linear Beam Elements* , 2000 .