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Automatic internal compression-distraction-method and apparatus

  • US 5,156,605 A
  • Filed: 06/11/1991
  • Issued: 10/20/1992
  • Est. Priority Date: 07/06/1990
  • Status: Expired due to Fees
First Claim
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1. An orthopaedic apparatus, comprising:

  • a telescoping rod suitable for placement in a bone of a patient, said telescoping rod including means for adjusting its lengtha plurality of fixing means for securing said telescoping rod to the bone in which it is placed;

    automatic drive means for controlling said means for adjusting the length of said telescoping rod, said drive means comprising a motor for causing incremental adjustments of said means for adjusting to adjust the length of said telescoping rod; and

    a controller means for providing pulses to said motor to control the incremental adjustments of said telescoping rod and for storing information regarding the number of stepwise adjustments of said telescoping rod length by said motor.

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