Surgery – Endoscope – With means for indicating position – depth or condition of...
Patent
1998-03-16
1999-09-28
Leubecker, John P.
Surgery
Endoscope
With means for indicating position, depth or condition of...
600145, A61B 1012
Patent
active
059578335
ABSTRACT:
A sensor device and system projects a three-dimensional image of the position of the colonoscope within the gut onto a video screen next to the optical image from the end of the colonoscope. The sensor device comprises a plurality of strain gages mounted on a bendable rod at the head of the rod. As the head is pushed through the biopsy channel of the colonoscope, the head bends with the curvature of the colonoscope causing the deformation of the head to be captured by the strain gages. An encoder at the inlet to the biopsy channel records the velocity and distance of the head as the head is pushed in and through the channel. The combined electrical output from the strain gages and encoder enables an instantaneous generation of a three-dimensional image of the colonoscope on a view screen. The sensor device avoids the need for any equipment that is above or surrounds the abdomen of the patient.
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