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Microsurgical instrument

  • US 20070185514A1
  • Filed: 02/06/2006
  • Published: 08/09/2007
  • Est. Priority Date: 02/06/2006
  • Status: Abandoned Application
First Claim
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1. A microsurgical instrument, comprising:

  • a cutting member having a tubular outer cutting member with a port for receiving tissue and a tubular inner cutting member disposed within said outer cutting member;

    a base having an actuating mechanism for reciprocating actuation of said inner cutting member so that said inner cutting member opens and closes said port and cuts tissue disposed in said port;

    a nose member having a cam member for operative engagement with said inner cutting member; and

    and an actuating handle coupled to said base and operatively engaged with said cam member, said actuating handle having a plurality of flexible appendages disposed around said instrument, said flexible appendages being capable of elongation upon application of a radially inward pressure;

    wherein during actuation of said inner cutting member and upon application of said pressure, said appendages elongate to rotate said cam member, said cam member interrupts a return stroke of said inner cutting member, and an open size of said port is adjusted.

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