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:
Feb. 29, 2000
Filed:
Oct. 05, 1998
Applicant:
Inventors:
John W Davis, Mountain View, CA (US);
Timothy B McFann, Redwood City, CA (US);
Assignee:
Origin Medsystems, Inc., Menlo Park, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
606198 ; 604104 ; 606190 ;
Abstract
Mechanical retractors for bluntly dissecting tissue at a remote surgical site include extendable element disposed near the distal end of an elongated cannula body with direct mechanical linkage to manual actuators disposed near the proximal end of the cannula body. Individual extendable elements may be arranged in symmetrical or asymmetrical configurations about the central axis of the body for selectively bluntly dissecting bodily tissue in patterns of greater diversity than merely omni-radially as provided by conventional pressurizable balloon tip cannulas.