US 12,369,939 B2
Ultrasonic surgical blades
David A. Witt, Maineville, OH (US); Jeffrey D. Messerly, Cincinnati, OH (US); and Kevin L. Houser, Springboro, OH (US)
Assigned to Cilag GmbH International, Zug (CH)
Filed by Cilag GmbH International, Zug (CH)
Filed on Aug. 10, 2023, as Appl. No. 18/232,591.
Application 18/232,591 is a division of application No. 16/546,593, filed on Aug. 21, 2019, granted, now 11,766,276.
Application 15/424,166 is a division of application No. 12/274,884, filed on Nov. 20, 2008, granted, now 10,010,339, issued on Jul. 3, 2018.
Application 16/546,593 is a continuation of application No. 15/424,166, filed on Feb. 3, 2017, granted, now 10,433,865, issued on Oct. 8, 2019.
Claims priority of provisional application 61/004,961, filed on Nov. 30, 2007.
Prior Publication US 2023/0414244 A1, Dec. 28, 2023
Int. Cl. A61B 17/32 (2006.01); A61B 17/00 (2006.01); A61L 31/08 (2006.01); A61L 31/10 (2006.01); A61L 31/14 (2006.01); A61N 7/00 (2006.01); A61N 7/02 (2006.01)
CPC A61B 17/320092 (2013.01) [A61L 31/08 (2013.01); A61L 31/088 (2013.01); A61L 31/10 (2013.01); A61L 31/14 (2013.01); A61N 7/00 (2013.01); A61B 2017/00849 (2013.01); A61B 2017/00853 (2013.01); A61B 2017/0088 (2013.01); A61B 17/320068 (2013.01); A61B 2017/320078 (2017.08); A61B 2017/320093 (2017.08); A61B 2017/320094 (2017.08); A61B 2017/320095 (2017.08); A61L 2400/10 (2013.01); A61L 2420/08 (2013.01); A61N 7/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An ultrasonic end effector, comprising:
an ultrasonic blade, comprising:
a proximal end; and
a distal end movable relative to a longitudinal axis in accordance with ultrasonic vibrations applied to the ultrasonic blade by an ultrasonic transducer, wherein the distal end comprises a coating, wherein the coating comprises a first layer layered on a distal facing surface of the ultrasonic blade and a second layer layered on top of the first layer, wherein the second layer is distal to at least a portion of the first layer, wherein the first layer comprises a first material, wherein the second layer comprises a second material, and wherein the first material is the same as the second material.