Ultrasonic surgical blade for use with ultrasonic surgical instruments

A surgical instrument, comprising:

• an ultrasonic transducer;
• an ultrasonic transmission waveguide extending from the ultrasonic transducer;
• and
• an ultrasonic blade acoustically coupled to the ultrasonic transmission waveguide, wherein the ultrasonic blade comprises:
• a base;
• a longitudinal axis extending parallel through the base;
• and
• a curved body extending distally from the base, wherein the curved body comprises:
• a distal end offset from the longitudinal axis in a first direction and a second direction different than the first direction;
• a proximal end opposite the distal end;
• a first side;
• a second side opposite the first side;
• and
• a curved edge extending on the second side, wherein the curved edge comprises:
• a first portion curving away from the longitudinal axis at a point adjacent the proximal end;
• a second portion curving toward the longitudinal axis at a point adjacent the distal end;
• and
• a balancing feature comprising a contour line that defines an asymmetry in the curved body.

A surgical instrument, comprising:

• an ultrasonic transducer;
• an ultrasonic transmission waveguide extending from the ultrasonic transducer;
• and
• an ultrasonic blade acoustically coupled to the ultrasonic transmission waveguide, wherein the ultrasonic blade comprises:
• a base;
• a longitudinal axis extending parallel through the base;
• and
• a curved body extending distally from the base, wherein the curved body comprises:
• a distal end offset from the longitudinal axis in a first direction and a second direction different than the first direction;
• a proximal end opposite the distal end;
• a first side;
• a second side opposite the first side;
• a blunt tip adjacent the distal end and extending laterally beyond the base;
• a height gradually tapered toward the blunt tip;
• a width gradually tapered toward the blunt tip;
• and
• a curved edge extending on the second side, wherein the curved edge comprises:
• a first portion curving away from the longitudinal axis at a point adjacent the proximal end;
• a second portion curving toward the longitudinal axis at a point adjacent the distal end;
• and
• a balancing feature comprising a contour line that defines an asymmetry in the curved body.

A surgical instrument, comprising:

• an ultrasonic transducer;
• an ultrasonic transmission waveguide extending from the ultrasonic transducer;
• and
• an ultrasonic blade acoustically coupled to the ultrasonic transmission waveguide, wherein the ultrasonic blade comprises:
• a base;
• a longitudinal axis extending parallel through the base;
• and
• a curved portion extending distally from the base, wherein the curved portion comprises:
• a distal end;
• a proximal end opposite the distal end;
• a first face, comprising:
• a tissue-treating surface;
• a first side wall intersecting the tissue-treating surface;
• and
• a second side wall intersecting the tissue-treating surface;
• and
• a second face opposite sides the first face, wherein the second face comprises:
• a first intermediate wall intersecting the first side wall;
• a second intermediate wall intersecting the second side wall;
• a cutting edge extending distally along a length of the curved portion, wherein the cutting edge comprises:
• a first portion curving away from the longitudinal axis at a point adjacent the proximal end;
• a second portion curving toward the longitudinal axis at a point adjacent the distal end;
• and
• a balancing feature comprising a contour line that defines an asymmetry in the curved portion;
• and;
• a first tissue cutting surface;
• and
• a second tissue cutting surface intersecting the first tissue cutting surface at the cutting edge.