#$%^&*AU2019202722B220200514.pdf#####HEMOSTAT-STYLE ULTRASONIC SURGICAL INSTRUMENT WITH CLAMP FORCE-LIMITING FEATURE ABSTRACT An ultrasonic surgical instrument (10) disclosed herein comprises: a first shaft member (110a)； a jaw member (164) extending distally from the first shaft member (110a)； a second shaft member (1Ob)； an ultrasonic blade (162) extending distally from the second shaft member (110b) and positioned to oppose the jaw member (164)； and a force-limiting hinge assembly (180) operably coupling the first and second shaft members (110a, 1Ob) with one another such that movement of the first and second shaft members (11Oa, 1Ob) relative to one another between a spaced-apart position and an approximated position moves the jaw member (164) and the ultrasonic blade (162) relative to one another between an open position and a clamping position for clamping tissue therebetween, wherein the force-limiting hinge assembly (180) includes a hinge arm (184) fixedly engaged to one of the first or second shaft members (11Oa, 1Ob) at a first end thereof and pivotably coupled to the other of the first or second shaft members (1Oa, 1Ob) at a second end thereof, the hinge arm (184) configured to flex to regulate a clamping force applied to tissue clamped between the jaw member (164) and the ultrasonic blade (162).1/3 C0 co Co C o CLC) cCo CD coc i ----g.~ IIj czI I: I~ C J I__ C_ I "cl IIj
