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Microsurgical instruments

  • US 4,258,716 A
  • Filed: 01/30/1979
  • Issued: 03/31/1981
  • Est. Priority Date: 02/06/1978
  • Status: Expired due to Term
First Claim
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1. A finger operated microsurgical instrument comprising a handle and an elongated instrument body rotatably secured within the end of said handle and having a surgical instrument on its other end, plunger means having a substantially flat face reciprocable within the portion of the instrument body which is secured within said handle, an operating bell crank lever pivoted to said handle and having a first arm positioned to be engageable by a surgeon'"'"'s finger while the handle is held in the surgeon'"'"'s hand, and a second arm engaging said plunger, an instrument actuating means having a substantially flat face within said instrument body and in frictional face-to-face engagement with said plunger, so that pivotal movement of said first arm by said surgeon will cause reciprocation of saind plunger means against said actuation means and actuation of said instrument, means preventing said actuating means from rotating relative to said instrument body, said instrument body being freely rotatable relative to said handle when said bell crank lever is released, said plunger means and instrument actuating means frictionally securing said instrument body from rotation when said bell crank lever is pivoted in use.

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