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US 12,575,849 B2Granted
Ultrasonic surgical instruments having offset blades
AssigneeCilag GmbH International
InventorsJeffrey D. Messerly, Cory G. Kimball, William E. Clem, Gregory W. Johnson, Frederick L. Estera, William B. Weisenburgh, II, Foster B. Stulen
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Abstract
Ultrasonic surgical instruments having angularly and/or linearly off-set blades are described. The angularly and/or linearly off-set blades may facilitate increased surgical site access, visibility, and manipulability.
Claims9
An ultrasonic surgical instrument comprising:
- an ultrasonic transducer;
- an ultrasonic transmission waveguide acoustically coupled to the ultrasonic transducer, wherein the ultrasonic transmission waveguide has a V-shaped cross-section;
- an ultrasonic surgical blade integrally formed with the ultrasonic transmission waveguide, wherein the ultrasonic transmission waveguide has an uninterrupted tapered width that decreases from a maximum at an acoustic coupling with the ultrasonic transducer to a minimum at a transition to the ultrasonic surgical blade;
- and
- a transduction shaft integrally formed with the ultrasonic transmission waveguide, wherein the transduction shaft is located through an aperture extending through the length of the ultrasonic transducer, and wherein the ultrasonic transducer is clamped between proximal edges of the ultrasonic transmission waveguide and a cam lock extending through a proximal bore in the transduction shaft.
2 more elements
Dependencies are inferred from the claim text.