Low frequency cataract fragmenting device
AssigneeCircuit Tree Medical, Inc.
InventorsAlex Urich, Michael Curtis
Life of this patent
Estimating the term…
Abstract
A control circuit that provides a driving signal to a transducer coupled to a mechanical cutting element. The transducer is capable of operating in a resonant mode. The driving signal contains a plurality of pulses provided in a time interval that does not cause the transducer to operate in the resonant mode.
Claims21
A console that can be coupled to a handpiece that has at least one transducer and a reciprocating tip that can be inserted through a tissue of a patient, comprising:
- a control circuit that can be coupled to the tip and generates packets of pulses at approximately a resonant frequency of the transducer to reciprocate the tip, each packet being separated by a pause period of no pulses so that the tip operates in a non-resonant mode and does not generate heat that denatures the tissue.
A medical system, comprising:
- a handpiece that has at least one transducer and a tip that can be inserted through a tissue of a patient;
- and,
- a control circuit that is coupled to said handpiece and generates packets of pulses at approximately a resonant frequency of said transducer to reciprocate said tip, each packet being separated by a pause period of no pulses so that said tip operates in a non-resonant mode and does not generate heat that denatures the tissue.
A console that can be coupled to a handpiece that has at least one transducer and a reciprocating tip that can be inserted through a cornea of a patient, comprising:
- a control circuit that be coupled to the tip and generates packets of pulses at approximately a resonant frequency of the transducer to reciprocate the tip, each packet being separated by a pause period of no pulses so that the tip operates in a non-resonant mode and does not generate heat that denatures the cornea.
A medical system, comprising:
- a handpiece that has at least one transducer and a tip that can be inserted through a cornea of a patient;
- and,
- a control circuit that is coupled to said handpiece and generates packets of pulses at approximately a resonant frequency of said transducer to reciprocate said tip, each packet being separated by a pause period of no pulses so that said tip operates in a non-resonant mode and does not generate heat that denatures the cornea.
A medical system, comprising:
- a cutting element that can be placed in contact with a tissue of a patient;
- a transducer coupled to said cutting element;
- and,
- a control circuit that is coupled to said transducer and generates packets of pulses at approximately a resonant frequency of said transducer to reciprocate said cutting element, each packet being separated by a pause period of no pulses so that said tip operates in a non-resonant mode and does not generate heat that denatures the tissue.
A medical system, comprising:
- a cutting element that can be placed in contact with a cornea of a patient;
- a transducer coupled to said cutting element;
- and,
- a control circuit that is coupled to said transducer and generates packets of pulses at approximately a resonant frequency of said transducer to reciprocate said cutting element, each packet being separated by a pause period of no pulses so that said tip operates in a non-resonant mode and does not generate heat that denatures the cornea.
Dependencies are inferred from the claim text.