Endoscope

Details Endoscope Endoscope

2007-07-11

2011-12-13

Smith, Philip (Department: 3779)

Surgery

Endoscope

Having imaging and illumination means

Reexamination Certificate

active

08075479

ABSTRACT:
In a drive mechanism which displaces a movable lens to be displaced, a shape memory element which is displaced due to heating. A displaceable range of a movable lens is restricted between a first position and a second position. With the shape memory element in a heated state upon applying a predetermined amount of heat to the shape memory element, the movable lens is displaced to the first position, and when the shape memory element is not heated, the movable lens is displaced to the second position. During a normal observation, a time for which the movable lens is displaced to the second position is longer than a time for which the movable lens is displaced to the first position.

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