US 12,402,905 B2
Serrated ultrasonic cutting blade with varied tooth pitch
Elad Levy, Amherst, NY (US); Timothy O'Connor, Boca Raton, FL (US); and Dan Voic, Cedar Grove, NJ (US)
Assigned to Misonix, LLC, Farmingdale, NY (US)
Filed by Misonix, LLC, Farmingdale, NY (US)
Filed on Aug. 13, 2021, as Appl. No. 17/402,295.
Prior Publication US 2023/0048993 A1, Feb. 16, 2023
Int. Cl. A61B 17/32 (2006.01)
CPC A61B 17/320068 (2013.01) [A61B 2017/320077 (2017.08)] 20 Claims
OG exemplary drawing
 
1. An ultrasonic surgical tool, comprising:
a substantially planar blade body having a pair of opposed lateral surfaces, a pair of straight longitudinal edges and a convexly arcuate distal edge contiguous with said straight longitudinal edges; and
a shank integral on a distal side with said blade body and provided at a proximal side with a connector for operatively linking the blade to a source of ultrasonic mechanical vibrations,
said substantially planar blade body defining a through slot that extends longitudinally and axially along a portion of the substantially planar blade body, the through slot being configured to deliver a fluid to an area adjacent to the substantially planar blade body,
said substantially planar blade body including an array of teeth disposed along said convexly arcuate distal edge and at least one straight longitudinal edge of said pair of straight longitudinal edges, the array of teeth including a first subset of teeth disposed along said convexly arcuate distal edge and a second subset of teeth disposed along said at least one straight longitudinal edge of said pair of straight longitudinal edges.