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A mechanism which provides a cheaper, simpler, easier-to-use implementation of the widely-used remote center of motion (RCM mechanism) which is commonly used in medical robots.
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Summary Stanford researchers have designed a mechanism which provides a cheaper, simpler, easier-to-use implementation of the widely-used remote center of motion (RCM mechanism) which is commonly used in medical robots. The new design reduces the number of cables, belts, or pivots required in typical RCM designs, allows for much easier machining and calibration, and provides a high range of rotation in excess of 200 degrees. This mechanism has been reduced to practice and is ready to be implemented with existing RCM mechanisms in robots. This mechanism will advance the state-of-the-art for medical robotics used for surgical guidance in laparoscopic surgery, ear surgery, and IV insertion. Applications Medical robotics Robotic, as well as non-robotic, laparoscopic surgery Robotic IV Insertion Robotic stapedectomy (ear surgery) Advantages Stiff mechanism High-range-of-motion ( > 200 degrees) Cheaper machining and simpler calibration/maintenance than required for traditional RCM designs