# US 10,765,557 B2 · Modulated pulsed ultrasonic power delivery system and method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,765,557 B2 - Document ID: US10765557B2 - Status: Granted - Kind: B2 - Application number: 15/652,039 - Filed: 2017-07-17 - Published: 2017-11-02 - Granted: 2020-09-08 - Earliest claimed: 2002-10-21 - Assignees: Johnson & Johnson Surgical Vision, Inc. - Applicants: Johnson & Johnson Surgical Vision, Inc. - Inventors: Kenneth E. Kadziauskas; Paul W. Rockley - Web page: https://patentgrep.com/patent/US10765557B2 ## CPC - A61F 9/00745: {using mechanical vibrations, e.g. ultrasonic} - B06B 1/0215: {for generating pulses, e.g. bursts of oscillations, envelopes} - B06B 1/023: {and stepped in amplitude, e.g. square wave, 2-level signal} - B06B 1/0253: {taken directly from the generator circuit} - B06B 1/06: operating with piezoelectric effect or with electrostriction (piezoelectric or electrostrictive devices per se H10N30/00) - G06F 12/0223: {User address space allocation, e.g. contiguous or non contiguous base addressing} - A61B 2017/00176: {Two pulses, e.g. second pulse having an effect different from the first one} - A61B 2017/00194: {Means for setting or varying the repetition rate} - A61B 2018/00666: {using a threshold value} - B06B 2201/76: Medical, dental - Y02D 10/00: Energy efficient computing, e.g. low power processors, power management or thermal management - A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C) - B06B: METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, {e.g.} FOR PERFORMING MECHANICAL WORK IN GENERAL (for particular applications, see the relevant subclasses, e.g. B07B1/40, B23Q17/12, B24B31/06; measurement of mechanical vibrations G01H; in direction finding, locating, distance or velocity measuring G01S; {generating seismic energy G01V1/02}; control of mechanical vibrations in general G05D; sound-producing devices, e.g. bells, sirens, whistles G10K, {e.g. methods or devices for transmitting, conducting, or directing sound in general G10K11/00}; generation of electrical oscillations H03B; electromechanical resonators in general H03H; electromechanical transducers {for communication techniques, e.g. microphones, speakers} H04R) - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE ## 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. ## Claims ### Claim 1 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. ### Claim 2 (depends on 1) The apparatus of claim 1, wherein said surgical handpiece comprises piezoelectric crystals configured to deliver ultrasonic energy via the surgical handpiece in said plurality of short burst periods interspersed by multiple de minimis power application periods. ### Claim 3 (depends on 1) The apparatus of claim 1, wherein the first energy burst period is followed immediately thereafter by the nonzero second energy burst period. ### Claim 4 (depends on 1) The apparatus of claim 1, wherein said surgical handpiece is configured to further provide a nonzero third energy burst period after the nonzero second energy burst period. ### Claim 5 (depends on 1) The apparatus of claim 1, wherein said surgical handpiece comprises a phacoemulsification handpiece having a needle and piezoelectric crystals configured to provide ultrasonic energy by vibrating said needle. ### Claim 6 (depends on 1) The apparatus of claim 1, further comprising a switch configured to enable operation of the apparatus at a first desired time when ultrasonic energy application is desired and disable operation of the apparatus at a second desired time when ultrasonic energy application is not desired. ### Claim 7 (depends on 1) The apparatus of claim 1, wherein said surgical handpiece is configured to further provide a zero energy period after the nonzero second energy burst period. ### Claim 8 (depends on 1) The apparatus of claim 1, wherein said surgical handpiece is configured to further provide a nonzero third energy burst period after the nonzero second energy burst period.