US 11,653,944 B2
Passive dissection features for ultrasonic surgical instrument
Kevin L. Houser, Springboro, OH (US)
Assigned to Cilag GmbH International, Zug (CH)
Filed by Cilag GmbH International, Zug (CH)
Filed on Nov. 26, 2019, as Appl. No. 16/696,271.
Application 16/696,271 is a continuation of application No. 15/158,769, filed on May 19, 2016, granted, now 10,543,013.
Prior Publication US 2020/0163691 A1, May 28, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 17/32 (2006.01)
CPC A61B 17/320092 (2013.01) [A61B 2017/320094 (2017.08); A61B 2017/320095 (2017.08)] 20 Claims
OG exemplary drawing
 
1. A surgical instrument, comprising:
(a) an acoustic waveguide; and
(b) an end effector, including:
(i) an ultrasonic blade in acoustic communication with the acoustic waveguide and distally extending from the acoustic waveguide,
(ii) a clamp arm having a first tine with a first grasping surface extending along a first plane, wherein the clamp arm is configured to selectively move toward the ultrasonic blade from an open configuration for receiving a tissue to a closed configuration for compressing the tissue, and
(iii) a blade guard positioned such that the ultrasonic blade is transversely between the blade guard and the clamp arm, wherein the blade guard includes:
(A) a second tine having a second grasping surface extending along a second plane, and
(B) a longitudinally extending arm defining a pathway such that the ultrasonic blade is received at least partially within the pathway, wherein at least a portion of the ultrasonic blade is positioned transversely below the second plane of the second grasping surface in the closed configuration, wherein the second tine is distally positioned relative to the longitudinally extending arm.