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VITRECTOMY PROBE WITH ADJUSTABLE CUTTER PORT SIZE

  • US 20130158582A1
  • Filed: 05/11/2012
  • Published: 06/20/2013
  • Est. Priority Date: 12/20/2011
  • Status: Active Grant
First Claim
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1. A vitrectomy probe comprising:

  • a housing;

    a cutter extending longitudinally from a first end of the housing, the cutter comprising;

    an outer cutting member coupled to the housing;

    an inner cutting member slideable within the outer cutting member, the inner cutting member slideable between a retracted position and an extended position; and

    an adjustable port, a size of the adjustable port defined by an edge of an opening formed in the outer cutting member and an end surface of the inner cutting member when the inner cutting member is in a fully retracted position;

    an oscillator operable to reciprocate the inner cutting member between the retracted position and the extended position, the oscillator comprising a first contact surface; and

    a stroke limiter operable to limit the size of the adjustable port, the stroke limiter comprising;

    a pancake motor; and

    a body longitudinally moveable in response to rotation of the pancake motor, the body comprising a second contact surface operable to contact the first contact surface to define the fully retracted position of the inner cutting member.

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