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:
Jun. 12, 2018
Filed:
Jun. 22, 2015
Fisher & Paykel Healthcare Limited, Auckland, NZ;
Michael Joseph Blackhurst, Auckland, NZ;
Laurence Gulliver, Auckland, NZ;
Robert Ashton Murphy, Auckland, NZ;
Fisher & Paykel Healthcare Limited, Auckland, NZ;
Abstract
A warming device () for warming the lens portion () of an optical instrument (I), such as a laparoscope, to a temperature above ambient to prevent lens fogging comprising: a double walled cylindrical tube () having an intemal wall (), and an external wall (), an upper surface and an open distal portion () with a central cavity () therebetween; a protrusion () extending from said upper surface, sized and shaped to receive the lens portion; a circular cap () sized to attach to said distal portion of said double walled cylindrical tube; and, a heating element () enclosed within said central cavity and thermally coupled to said insulation layer.