WO1998031476A1 - Unambiguous multiple-frequency phase detector for phacoemulsification system - Google Patents

Unambiguous multiple-frequency phase detector for phacoemulsification system Download PDF

Info

Publication number
WO1998031476A1
WO1998031476A1 PCT/US1998/001004 US9801004W WO9831476A1 WO 1998031476 A1 WO1998031476 A1 WO 1998031476A1 US 9801004 W US9801004 W US 9801004W WO 9831476 A1 WO9831476 A1 WO 9831476A1
Authority
WO
WIPO (PCT)
Prior art keywords
current
voltage
signal
handpiece
onset
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US1998/001004
Other languages
English (en)
French (fr)
Inventor
James W. Staggs
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Allergan Inc
Allergan Sales LLC
Original Assignee
Allergan Inc
Allergan Sales LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Allergan Inc, Allergan Sales LLC filed Critical Allergan Inc
Priority to JP53338098A priority Critical patent/JP3974662B2/ja
Priority to EP98904597A priority patent/EP0954386B1/en
Priority to DE69804765T priority patent/DE69804765T2/de
Publication of WO1998031476A1 publication Critical patent/WO1998031476A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/0207—Driving circuits
    • B06B1/0223—Driving circuits for generating signals continuous in time
    • B06B1/0238—Driving circuits for generating signals continuous in time of a single frequency, e.g. a sine-wave
    • B06B1/0246—Driving circuits for generating signals continuous in time of a single frequency, e.g. a sine-wave with a feedback signal
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00636—Sensing and controlling the application of energy
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61F9/00—Methods or devices for treatment of the eyes; Devices for putting in contact-lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/007—Methods or devices for eye surgery
    • A61F9/00736—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments
    • A61F9/00745—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments using mechanical vibrations, e.g. ultrasonic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
    • B06B2201/50—Application to a particular transducer type
    • B06B2201/55—Piezoelectric transducer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
    • B06B2201/70—Specific application
    • B06B2201/76—Medical, dental

Definitions

  • the 15 phacoemulsification handpiece is interconnected with the control council by an electric cable for powering and controlling the piezoelectric transducer and tubing for providing irrigation fluid to the handpiece and withdrawing aspiration fluid from an eye through 20 the handpiece.
  • onset of a current cycle is obtained. More particularly, the onset may be determined when the AC current increases while crossing a zero current value.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Surgical Instruments (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
PCT/US1998/001004 1997-01-22 1998-01-21 Unambiguous multiple-frequency phase detector for phacoemulsification system Ceased WO1998031476A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP53338098A JP3974662B2 (ja) 1997-01-22 1998-01-21 超音波白内障乳化吸引法のための多周波数位相検出器
EP98904597A EP0954386B1 (en) 1997-01-22 1998-01-21 Unambiguous multiple-frequency phase detector for phacoemulsification system
DE69804765T DE69804765T2 (de) 1997-01-22 1998-01-21 Eindeutiger mehrfrequenz-phasendetektor für phacoemulsifikationsystem

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/787,229 1997-01-22
US08/787,229 US5852794A (en) 1997-01-22 1997-01-22 Multiple frequency unambiguous phase detector for phacoemulsification system

Publications (1)

Publication Number Publication Date
WO1998031476A1 true WO1998031476A1 (en) 1998-07-23

Family

ID=25140810

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/001004 Ceased WO1998031476A1 (en) 1997-01-22 1998-01-21 Unambiguous multiple-frequency phase detector for phacoemulsification system

Country Status (5)

Country Link
US (1) US5852794A (https=)
EP (1) EP0954386B1 (https=)
JP (1) JP3974662B2 (https=)
DE (1) DE69804765T2 (https=)
WO (1) WO1998031476A1 (https=)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7169123B2 (en) 1997-01-22 2007-01-30 Advanced Medical Optics, Inc. Control of pulse duty cycle based upon footswitch displacement
US6394974B1 (en) 1997-01-22 2002-05-28 Allergan Sales, Inc. Power mode phaco
US6629948B2 (en) * 1997-01-22 2003-10-07 Advanced Medical Optics Rapid pulse phaco power for burn free surgery
US6780165B2 (en) 1997-01-22 2004-08-24 Advanced Medical Optics Micro-burst ultrasonic power delivery
US5938677A (en) * 1997-10-15 1999-08-17 Alcon Laboratories, Inc. Control system for a phacoemulsification handpiece
SE511145C2 (sv) * 1997-12-23 1999-08-09 Ericsson Telefon Ab L M Metod och anordning för detektering av fasskillnad
US6028387A (en) * 1998-06-29 2000-02-22 Alcon Laboratories, Inc. Ultrasonic handpiece tuning and controlling device
US6997935B2 (en) 2001-11-20 2006-02-14 Advanced Medical Optics, Inc. Resonant converter tuning for maintaining substantially constant phaco handpiece power under increased load
US20040092921A1 (en) * 2002-10-21 2004-05-13 Kadziauskas Kenneth E. System and method for pulsed ultrasonic power delivery employing cavitation effects
US7077820B1 (en) 2002-10-21 2006-07-18 Advanced Medical Optics, Inc. Enhanced microburst ultrasonic power delivery system and method
US7316664B2 (en) * 2002-10-21 2008-01-08 Advanced Medical Optics, Inc. Modulated pulsed ultrasonic power delivery system and method
CA2830583C (en) 2003-03-12 2015-06-09 Abbott Medical Optics Inc. System and method for pulsed ultrasonic power delivery employing cavitation effects
US7846126B2 (en) * 2003-07-14 2010-12-07 Abbott Medical Optics, Inc. System and method for modulated surgical procedure irrigation and aspiration
US7785336B2 (en) 2006-08-01 2010-08-31 Abbott Medical Optics Inc. Vacuum sense control for phaco pulse shaping
US10485699B2 (en) * 2007-05-24 2019-11-26 Johnson & Johnson Surgical Vision, Inc. Systems and methods for transverse phacoemulsification
US10363166B2 (en) 2007-05-24 2019-07-30 Johnson & Johnson Surgical Vision, Inc. System and method for controlling a transverse phacoemulsification system using sensed data
US10596032B2 (en) 2007-05-24 2020-03-24 Johnson & Johnson Surgical Vision, Inc. System and method for controlling a transverse phacoemulsification system with a footpedal
US9050627B2 (en) 2011-09-02 2015-06-09 Abbott Medical Optics Inc. Systems and methods for ultrasonic power measurement and control of phacoemulsification systems
US11877953B2 (en) 2019-12-26 2024-01-23 Johnson & Johnson Surgical Vision, Inc. Phacoemulsification apparatus
US12472094B2 (en) 2020-05-21 2025-11-18 Johnson & Johnson Surgical Vision, Inc. Phacoemulsification probe comprising magnetic sensors and/or multiple independent piezoelectric vibrators
US12178750B2 (en) 2020-11-23 2024-12-31 Johnson & Johnson Surgical Vision, Inc. Removal of cataract debris
US12324770B2 (en) 2021-04-15 2025-06-10 Johnson & Johnson Surgical Vision, Inc. Compensating for imperfect behavior of multi-piezoelectric crystal
US12310888B2 (en) 2021-11-18 2025-05-27 Johnson & Johnson Surgical Vision, Inc. On-the-fly tuning for piezoelectric ultrasonic handpieces

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0270819A2 (en) * 1986-11-07 1988-06-15 Alcon Laboratories, Inc. Linear power control for ultrasonic probe with tuned reactance
US5431664A (en) 1994-04-28 1995-07-11 Alcon Laboratories, Inc. Method of tuning ultrasonic devices

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4954960A (en) * 1986-11-07 1990-09-04 Alcon Laboratories Linear power control for ultrasonic probe with tuned reactance
US4970656A (en) * 1986-11-07 1990-11-13 Alcon Laboratories, Inc. Analog drive for ultrasonic probe with tunable phase angle
US5001649A (en) * 1987-04-06 1991-03-19 Alcon Laboratories, Inc. Linear power control for ultrasonic probe with tuned reactance

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0270819A2 (en) * 1986-11-07 1988-06-15 Alcon Laboratories, Inc. Linear power control for ultrasonic probe with tuned reactance
US5431664A (en) 1994-04-28 1995-07-11 Alcon Laboratories, Inc. Method of tuning ultrasonic devices

Also Published As

Publication number Publication date
EP0954386B1 (en) 2002-04-10
EP0954386A1 (en) 1999-11-10
JP3974662B2 (ja) 2007-09-12
DE69804765T2 (de) 2003-02-20
US5852794A (en) 1998-12-22
JP2002513325A (ja) 2002-05-08
DE69804765D1 (de) 2002-05-16

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