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:
Jul. 28, 1992
Filed:
Aug. 17, 1990
Applicant:
Inventor:
Douglas D Sjostrom, Wakefield, MA (US);
Assignee:
Smith & Nephew Dyonics Inc., Andover, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
606180 ; 604 22 ; 408124 ;
Abstract
A surgical device including a handpiece adapted to receive a surgical tool, a motor driven drive shaft for rotating the tool about an axis, a static seal element sealed to the motor assembly, and a dynamic seal element sealed to the drive shaft, the seal elements having mating sealing portions defining a face seal in a surface transverse to the axis of rotation of the drive shaft.