Patent ID: 8491300
Filing Date: 2013-07-23
Classification: A61C

Abstract:
1. An ultrasonic tool comprising: a first transducer for generating mechanical energy; a coupling member disposed proximate the first transducer and adapted to receive mechanical energy from said transducer, wherein the coupling member comprises a material having magnetic permeability; a second transducer disposed substantially proximate to the coupling member and generating a voltage signal in response to movement of a portion of the coupling member due to the magnetic permeability of the coupling member, at least one rare earth magnet disposed in close proximity to the coupling member, wherein the at least one rare earth magnet is mounted in a stationary position such that the coupling member moves relative to the at least one rare earth magnet; and at least one light source disposed substantially proximate to the coupling member, said at least one light source being connected to and receiving the voltage signal from the second transducer to generate light.