Scope warming device
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United States of America Patent
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Jun 12, 2018
Issued Date -
N/A
app pub date -
Jun 22, 2015
filing date -
Apr 5, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
A warming device (30) for warming the lens portion (2) of an optical instrument (I), such as a laparoscope, to a temperature above ambient to prevent lens fogging comprising: a double walled cylindrical tube (3) having an intemal 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.
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