Patent ID: 7175593
Filing Date: 2007-02-13
Classification: A61B

Abstract:
1. A variable view arthroscope with a plurality of viewing positions in a viewing range between a first end viewing position and a second end viewing position, comprising: a tubular housing having a longitudinal axis and an input end; an input lens in the input end of the housing, the input lens being rotatable around a first axis relative to the housing; a mirror in the input end of the housing, the mirror being rotatable around the first axis relative to the housing and wherein the input lens has a first angular change between a first viewing position and a second viewing position and the mirror has a second angular change between the first viewing position and the second viewing position, and the second angular change is half the first angular change; and a CCD in the housing, the CCD having a receptor surface; wherein an optical path is defined such that object rays received at the input end pass through the input lens, reflect from the mirror and impinge on the receptor surface, and wherein the movement of the input lens and the first mirror varies the view of the arthroscope.