The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 07, 2021
Filed:
Dec. 15, 2017
Stryker European Holdings I, Llc, Kalamazoo, MI (US);
Cathal Heavey, Dublin, IE;
STRYKER EUROPEAN OPERATIONS HOLDINGS LLC, Kalamazoo, MI (US);
Abstract
An ultrasonic tip for fibrous tissue removal. The ultrasonic tip may be configured for at least torsional vibration and coupled to a distal end of a shaft of a surgical instrument with the shaft including a vibration conversion mechanism. The ultrasonic tip includes a plurality of slots extending between inner and outer circumferential surfaces to form a plurality of teeth. A depth of one of the slots at the outer circumferential surface is greater than a depth of the slot at the inner circumferential surface to define a sloped surface. The teeth include a cutting edge defined between the outer circumferential surface and a side surface defining the slot. The cutting edge includes a positive rake angle. The teeth may further include an inner cutting edge defined between the sloped surface and the inner circumferential surface with the inner cutting edge having a positive rake angle.