Scope warming device

Details Scope warming device Scope warming device

A - Human Necessities

61

B

A61B 1/313 (2006.01)

Patent

CA 2563293

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.

Cette invention concerne un dispositif de chauffage (30) destiné à chauffer la partie lentille (2) d'un instrument optique (1) tel qu'un laparoscope au-dessus de la température ambiante afin d'empêcher la formation de buée sur la lentille. Ce dispositif comprend un tube cylindrique à double paroi (3) paroi intérieure (3b) et paroi extérieure (3a) une surface supérieure et une partie distale ouverte (7) séparée par une cavité centrale (4); une partie saillante (9) partant de ladite surface supérieure, dont la taille et la forme sont étudiées pour recevoir la partie lentille; une coiffe circulaire (5) dimensionnée pour se fixer sur ladite partie distale du tube cylindrique à double paroi; et un élément chauffant logé dans la cavité centrale et couplé thermiquement à la couche isolante.

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