1
Billie John Barwick Jr, James H Little: Phacoemulsification system having ultrasonic power controlled by aspiration vacuum sensor. Walter A Hackler, December 23, 1997: US05700240 (184 worldwide citation)

A method for controlling aspiration and irrigation fluids in an eye during a surgical procedure includes placing a handpiece in an operative relationship with an eye for introducing irrigation fluid and aspiration of fluid from the eye. Irrigation is provided at diverse pressures and aspiration is c ...


2
Billie J Barwick Jr, James H Little: Phacoemulsification method and apparatus. Walter A Hackler, January 7, 1997: US05591127 (91 worldwide citation)

A method and apparatus for phacoemulsification in which handpiece occlusion is sensed by a vacuum rise beyond a programmable level. The speed of a variable speed peristaltic pump is varied in response to the sensed handpiece occlusion condition. Ultrasonic phaco power can be adjusted in response to ...


3
James H Little, William A Lindgren: Video monitoring and reapposition monitoring apparatus and methods. Senniger Powers Leavitt and Roedel, May 8, 1990: US04922909 (47 worldwide citation)

Video monitoring apparatus for use in an application in which changes in relative spatial relationship of features of a biological tissue are to be observed. A video camera electronically produces a first image of the tissue and also electronically produces a subsequent image of the tissue after a p ...


4
Billy John Barwick Jr, James H Little: Operating method of ultrasonic phacoemulsification apparatus. Allergan Sales, June 19, 2001: JP2001-161740 (28 worldwide citation)

PROBLEM TO BE SOLVED: To provide an operating method to implement the programming so as to be useful for the operation different from each other according to the experiences and the ability of an operator in operating a ultrasonic phacoemulsification apparatus provided with a pulsed ultrasonic wave ...


5
Billy John Barwick Jr, James H Little: Method for controlling phacoemulsification system and phacoemulsification apparatus. Advanced Medical Optics, July 29, 2004: JP2004-209276

PROBLEM TO BE SOLVED: To provide a method for controlling a phacoemulsification system and a phacoemulsification apparatus which enable controlling ultrasonic power responsive to necessities of both a method of an operation and special technique when a phacoemulsification operation is performed.SOLU ...