Scope warming device with whitening element
US9060676B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2005 |
| Grant date | Jun 23, 2015 |
| Priority date | — |
| Expiry date | Aug 29, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B1/00057
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A warming device (30) for warming the lens portion (2) of an optical instrument (1), such as a laparoscope, to a temperature above ambient to prevent lens fogging comprising: a double walled cylindrical tube (3) having an internal wall (3b), and an external wall (3a), an upper surface and an open distal portion (7) with a central cavity (4) therebetween; a protrusion (9) extending from said upper surface, sized and shaped to receive the lens portion; a circular cap (5) sized to attach to said distal portion of said double walled cylindrical tube; and, a heating element (15) enclosed within said central cavity and thermally coupled to said insulation layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.