US 12,357,341 B2
Cutting instrument with improved surface topography
Clifford Spiro, Phoenix, AZ (US); Timothy Tobin, Phoenix, AZ (US); Eric Coats, Phoenix, AZ (US); and William Fender, Phoenix, AZ (US)
Assigned to PLANATOME, LLC, Phoenix, AZ (US)
Filed by Entrepix Medical, LLC, Phoenix, AZ (US)
Filed on Sep. 30, 2021, as Appl. No. 17/491,512.
Claims priority of provisional application 63/085,952, filed on Sep. 30, 2020.
Prior Publication US 2022/0096114 A1, Mar. 31, 2022
Int. Cl. A61B 17/3211 (2006.01); A61B 17/00 (2006.01); B24B 37/04 (2012.01)
CPC A61B 17/3211 (2013.01) [B24B 37/042 (2013.01); A61B 2017/00526 (2013.01); A61B 2017/00849 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A cutting instrument, comprising:
a blade body having two opposing faces and a cutting wedge comprising:
a leading edge; and
one or more cutting fasciae extending from at least one of the two opposing faces and defining at least a portion of the leading edge, wherein the one or more cutting fasciae have a surface roughness comprising:
a measured arithmetic mean height (Sa) of 150 nm or less with a standard deviation of 30 nm or less across a measurement area of 16,641 square microns on at least a portion of the one or more cutting fasciae; and
one or more of: (1) a measured maximum height (St) of 1.5 μm or less with a standard deviation of 0.4 μm or less within the measurement area of 16,641 square microns on the at least the portion of the one or more cutting fasciae; or (2) a measured arithmetic mean peak curvature (Spc) of 150 mm−1 or less with a standard deviation of 30 mm−1 or less within the measurement area of 16,641 square microns on the at least the portion of the one or more cutting fasciae.