Patent ID: 6412340
Filing Date: 2002-07-02
Classification: A61L,G01B

Abstract:
A sensing mechanism for detecting an unevenness of a surface on a device, wherein said surface has at least a first path and a second path therealong, wherein said first path and said second path are noncoincident, said mechanism comprising:at least one connector; a first pawl, wherein a first end of said first pawl is connected to said connector in a manner allowing movement of said first pawl and wherein a second end of said first pawl contacts a portion of said first path on said surface; a second pawl, wherein a first end of said second pawl is connected to said connector in a manner allowing movement of said second pawl and wherein a second end of said second pawl contacts a portion of said second path; and a sensor mounted on said first pawl or said second pawl, wherein said sensor detects a position of said first pawl relative to said second pawl.