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:
Nov. 13, 1990
Filed:
Jan. 25, 1990
Randal B Chinnock, North Reading, MA (US);
Arthur Shoemaker, Syosset, NY (US);
Smith & Nephew Dyonics, Inc., Andover, MA (US);
Abstract
The present invention provides a videoarthroscope which is longitudinally compact so tht it can be held and controlled with one hand. the videoarthroscope of the present invention includes a needle assembly and a focusing assembly rotatable relative to each other to permit rotation of the needle tip. The focusing assembly includes a rotatable focusing ring. All confronting rotating surfaces are sealed by a multilobed seal and provided with a lubricant to promote both ease of movement and sealing of movable joints. The videoarthroscope includes in its optical assembly a movable focusing group comprised of two lenses and an optional fixed telescope lens.