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Laparoscopic ultrasonic surgical instrument and methods for manufacturing the instruments

  • US 5,346,502 A
  • Filed: 04/15/1993
  • Issued: 09/13/1994
  • Est. Priority Date: 04/15/1993
  • Status: Expired due to Term
First Claim
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1. Ultrasonic surgical apparatus comprising:

  • an elongated shaft having a proximal end and a surgical blade at a distal end;

    said proximal end, said shaft and said blade being one-piece integral construction and adapted to transmit ultrasonic energy therealong from said proximal end to said blade; and

    a sheath extending about and generally radially spaced from said shaft;

    the largest lateral dimensions of said proximal end and said blade being greater than the smallest internal diameter of said sheath.

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