Piezoelectric ultrasonic micro-motor system for minimally invasive surgery - The Intellimotor

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Abstract

True micro-motor systems capable of direct and immediate integration are needed in order to advance the technological state and effectiveness of existing minimally invasive surgery (MIS) equipment. In this study, a three degree-of-freedom (DOF) piezoelectric ultrasonic micro-motor is reported, with a major diameter of only 350 μm; the Intellimotor. Upon integrating the micro-motor with a MIS micro-guidewire, a severe loss of actuation performance to the point of inoperability was observed, due to a detrimental loss of acoustic energy from the micro-motor. To combat this, two diameter 300 μm waveguide micro-Bragg reflectors (micro-BRs) were developed. A prototype micro-BR was constructed and tested to verify the ability to reflect otherwise lost acoustic energy, thereby enabling the integration of a resonant micro-actuator, such as the Intellimotor, with standard MIS equipment. © 2012 American Institute of Physics.

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APA

Rogers, G. W. (2012). Piezoelectric ultrasonic micro-motor system for minimally invasive surgery - The Intellimotor. In AIP Conference Proceedings (Vol. 1433, pp. 705–708). https://doi.org/10.1063/1.3703280

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