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US 10,765,557 B2Granted
Modulated pulsed ultrasonic power delivery system and method
AssigneeJohnson & Johnson Surgical Vision, Inc.
InventorsKenneth E. Kadziauskas, Paul W. Rockley
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Abstract
A method and apparatus for delivering energy during a surgical procedure such as phacoemulsification is provided. The method and apparatus include applying energy during at least one pulsed energy on period, typically sufficient or intended to rapidly induce and beneficially employ transient cavitation. Applying energy during the pulsed energy on period comprises applying energy during a first high energy period, and applying energy during a second nonzero lower energy period.
Claims8
A surgical apparatus, comprising:
- a controller;
- and
- a surgical handpiece configured to receive commands from a controller and apply modulated ultrasonic energy to a surgical area of a patient in a plurality of short burst periods, said short burst periods comprising a first energy burst period followed thereafter by a nonzero second energy burst period,
- wherein the energy applied during the first energy burst period is higher than the energy applied during the nonzero second energy burst period,
- wherein the first energy burst period is sufficient to induce transient cavitation within the surgical area, and
- wherein the first energy burst period is between 1.8 and 3.5 milliseconds.
3 more elements
Dependencies are inferred from the claim text.