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Outer sheath and blade arrangements for ultrasonic surgical instruments

  • US 8,579,928 B2
  • Filed: 02/11/2010
  • Issued: 11/12/2013
  • Est. Priority Date: 02/11/2010
  • Status: Active Grant
First Claim
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1. A surgical instrument, comprising:

  • a hollow sheath including an outer perimeter and an opening, wherein the hollow sheath defines a longitudinal axis;

    a blade disposed at least partially within the hollow sheath and extending through the opening, wherein the blade comprises a tip and a cross-sectional shape adjacent to the tip that is a polygon, and wherein the tip projects away from the longitudinal axis and radially extends beyond the outer perimeter; and

    at least one ultrasonic transducer operably coupled to the blade.

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