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:
Apr. 02, 2013
Filed:
Jan. 17, 2007
Thomas Grey, San Marco, CA (US);
Alex Vayser, Mission Viejo, CA (US);
Jon Gasson, San Francisco, CA (US);
Thomas Grey, San Marco, CA (US);
Alex Vayser, Mission Viejo, CA (US);
Jon Gasson, San Francisco, CA (US);
Invuity, Inc., San Francisco, CA (US);
Abstract
A surgical illumination system includes a retractor having a proximal handle portion and a distal portion adapted for insertion into a surgical field and retraction of body tissue, and a light guide disposed on the retractor, said light guide having a distal surface adapted to face the surgical field when in use in retracting body tissue away from a surgical field, and a proximal aperture adapted to receive light from a light engine or other light source wherein a portion of the distal surface adapted to face the surgical field is faceted with a plurality of facets, ridges, steps or shoulders, wherein the distally oriented surface of said facets, ridges, steps or shoulders are angled relative to the axis of the light guide and the location of the surgical field such that light passing through the light guide is emitted and directed toward the surgical field.