Ultrasonic probe for calculi treatment
AssigneeGyrus ACMI, Inc.
InventorsCharles Baker, James Macione, Dennis G. Lamser
Life of this patent
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Abstract
A method of treating a calculi mass can include using an ultrasonic probe to produce acoustic energy and fragment the mass. The method can include varying the frequency at which fragmentation occurs to treat the mass with a resonant frequency. The ultrasonic probe can have a distal tip for contact with the mass, where the tip has a morphology for concentrating stress on the mass. The ultrasonic probe can have two or more ultrasonic horns to allow for higher voltage and power levels.
Claims17
An apparatus for treating a calculus mass with an acoustic probe comprising an acoustic transducer, the apparatus comprising:
- a controller circuitry configured for providing a plurality of drive signal components corresponding to a plurality of frequencies, to produce an acoustic resonance frequency of the acoustic probe that is targeted to the calculus mass;
- an output interface configured for communicating the plurality of drive signal components to the acoustic transducer to produce the acoustic resonance frequency;
- an acoustic waveguide extending distally from the acoustic transducer, the acoustic waveguide configured to propagate an acoustic waveform based on the acoustic resonance frequency produced based on the plurality of frequencies;
- and
- a probe tip distal of the acoustic transducer, the probe tip longitudinally displaceable using the propagated acoustic waveform to fracture the calculus mass.
An apparatus for treating a calculus mass with an acoustic probe, the apparatus comprising:
- the acoustic probe comprising an acoustic transducer;
- an input interface configured to receive, from a controller circuitry, a plurality of drive signal components corresponding to a plurality of frequencies, to produce an acoustic resonance frequency of the acoustic probe that is targeted to the calculus mass;
- further comprising an acoustic waveguide extending distally from the acoustic transducer, the acoustic waveguide configured to propagate an acoustic waveform based on the targeted acoustic resonance frequency;
- and
- a probe tip distal of the acoustic transducer, the probe tip longitudinally displaceable by the propagated acoustic waveform to fracture a calculus mass.
A method of fracturing a calculus mass with an acoustic probe comprising an acoustic transducer, the method comprising:
- providing or receiving a plurality of drive signal components corresponding to a plurality of frequencies, to produce an acoustic resonance frequency of the acoustic probe that is targeted to the calculus mass;
- communicating the plurality of drive signal components to the acoustic transducer to produce the acoustic resonance frequency;
- and
- producing a waveform based on the plurality of frequencies, wherein at least one of the plurality of frequencies comprises a harmonic frequency of a fundamental frequency for resonance of the acoustic probe.
Dependencies are inferred from the claim text.