Patent ID: 8454501
Filing Date: 2013-06-04
Classification: A61B

Abstract:
1. An endoscope protection device, comprising: a sheath with a rigid cylindrical tubular part; and an associated flexible sleeve, wherein the rigid cylindrical tubular part is produced from a material able to transport light, the rigid cylindrical tubular part is treated to guide light from a light source from a proximal end to a distal end of the rigid cylindrical tubular part, and the distal end of the cylindrical tubular part includes means for diffusing and/or orienting light guided by the cylindrical tubular part, wherein the means for diffusing and/or orienting light include a diffusion spacer and an angular correction lens, wherein the diffusion spacer is a tubular part having a plane transverse face adapted to rest against the distal end of the cylindrical tubular part while a face opposite to the transverse face has a number of edges, or rounded edges, to form a number of prisms, wherein the diffusion spacer is disposed between the angular correction lens and the distal end of the cylindrical tubular part and there is a gap between the diffusion spacer and the angular correction lens forming an air lens between those two components, wherein the angular correction lens is a lens having an interior face proximal to the prisms of the diffusion spacer and an exterior face opposite the interior face, and the interior face of the angular correction lens has a shape that corresponds to the shape of the prisms of the diffusion spacer.