Serrated ultrasonic cutting blade with varied tooth pitch
AssigneeMisonix, Incorporated
InventorsElad I. LEVY, Timothy O'CONNOR, Dan VOIC
Life of this patent
Estimating the term…
Abstract
An ultrasonic blade is provided along a convexly arcuate distal edge and at least one longitudinal edge with a continuous array of teeth including a first subset of teeth along the convexly arcuate distal edge and a second subset of teeth along the at least one straight longitudinal edge. The teeth along the convexly arcuate distal edge differ in tooth length and optionally in inter-tooth separation or pitch from the teeth along one or both of the longitudinal edges.
Claims25
-19. (canceled)
An apparatus, comprising:
- a proximal portion defining a channel extending therethrough and configured to convey a fluid, the proximal portion configured to be coupled to a source of ultrasonic energy;
- and
- a blade disposed at a distal end of the proximal portion, the blade defining a through slot in fluid communication with the channel, the through slot extending longitudinally along a portion of the blade and configured to deliver the fluid to an area adjacent to the blade, the blade including a plurality of teeth disposed along at least a portion of an edge of the blade, the plurality of teeth configured to cut through biological tissue.
An apparatus, comprising:
- a proximal portion defining a channel extending therethrough and configured to convey a fluid, the proximal portion configured to be coupled to a source of ultrasonic energy;
- and
- a blade disposed at a distal end of the proximal portion, the blade including a first lateral surface and a second lateral surface parallel to the first lateral surface, the through slot extending between the first lateral surface to the second lateral surface, the through slot in fluid communication with the channel and configured to deliver the fluid to an area adjacent to the blade,
- the blade further including a plurality of teeth disposed along at least a portion of an edge of the blade, the plurality of teeth configured to cut through biological tissue.
The apparatus of 31, wherein a tooth length of the first set of teeth is uniform among the first set of teeth and a tooth length of the second set of teeth is uniform among the second set of teeth.
An apparatus, comprising:
- a proximal portion including a channel extending therethrough, the proximal portion configured to be coupled to a source of ultrasonic mechanical vibrations;
- a blade disposed at a distal end of the proximal portion, the blade including a pair of longitudinal edges and a distal edge continuous with the pair of longitudinal edges, the blade defining a through slot extending along a portion thereof,
- the blade further including a plurality of teeth including a first set of teeth disposed along at least a portion of the distal edge, and a second set of teeth disposed along at least a portion of the pair of longitudinal edges, the first set of teeth having a first length and a first pitch and the second set of teeth having a second length greater than the first length and a second pitch greater than the first pitch, the plurality of teeth configured to cut through biological tissue.
The apparatus of 36, wherein a tooth length of the first set of teeth is uniform among the first set of teeth and a tooth length of the second set of teeth is uniform among the second set of teeth.
Dependencies are inferred from the claim text.