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Integrated system for powered surgical tools

  • US 6,329,778 B1
  • Filed: 12/29/1999
  • Issued: 12/11/2001
  • Est. Priority Date: 08/15/1996
  • Status: Expired due to Term
First Claim
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1. A control console for providing an energization signal to a surgical handpiece that is removably connected to said control console, the surgical handpiece having a variable speed motor that is actuated in response to application of the energization signal, said control console comprising:

  • a motor control assembly for generating the energization signal for application to the handpiece motor, wherein said motor control assembly, in response to a first motor control signal, selectively modulates the energization signal; and

    a processor connected to;

    said handpiece motor for receiving an indication of the speed of the motor;

    a removable memory that is integral with the surgical handpiece, the removable memory containing data representative of the maximum current the handpiece motor should draw at a plurality of different speeds; and

    to said motor control assembly for applying the first motor control signal to said motor control assembly wherein, said processor is configured to;

    determine when a new surgical handpiece is attached to said control console, and when a new surgical handpiece is attached to said control console, to read the data in the removable memory integral with the surgical handpiece;

    calculate a maximum allowed current that can be drawn by the motor based on the speed of the motor and the data in the handpiece memory representative of the maximum current for the plurality of speeds; and

    compare the current drawn by the motor to the maximum allowed current and, based on the comparison, to selectively generate the first motor control signal applied to said motor control assembly.

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