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Controlling operation of handpieces during ophthalmic surgery

  • US 5,580,347 A
  • Filed: 09/15/1994
  • Issued: 12/03/1996
  • Est. Priority Date: 07/31/1991
  • Status: Expired due to Fees
First Claim
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1. A system for operating on a patient'"'"'s eye, comprisinga handpiece constructed for insertion by a user into said eye,a control module comprising at least one control arranged to be manipulated by a user to control a setting of at least one parameter of operation of said handpiece, said control being arranged to generate a first signal that indicates the setting of said at least one parameter, anda foot pedal module comprising a foot pedal arranged to generate a second signal, in response to actuation of said foot pedal by the user, for controlling operation of said handpiece in accordance with said parameter set by said control in said control module,said foot pedal module further comprising circuitry connected to said control in said control module, to said foot pedal, and to said handpiece, said circuitry being located within said foot pedal module and being arranged to process said first signal and said second signal to generate an output signal to control the operation of said handpiece, said output signal being based on the setting of said at least one parameter and the actuation of said foot pedal,wherein said circuitry located within said foot pedal module comprises substantially all of the circuitry of said system and performs substantially all processing of signals in said system.

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