| US 7,517,314 B2 | ||
| Endoscopic imaging with indication of gravity direction | ||
| Hans David Hoeg, Arcadia, Calif. (US); Eric Lawrence Hale, Altadena, Calif. (US); and Nathan Jon Schara, Pasadena, Calif. (US) | ||
| Assigned to Karl Storz Development Corp., Goleta, Calif. (US) | ||
| Filed on Feb. 10, 2005, as Appl. No. 11/55,444. | ||
| Claims priority of provisional application 60/618618, filed on Oct. 14, 2004. | ||
| Prior Publication US 2006/0084840 A1, Apr. 20, 2006 | ||
| Int. Cl. A61B 1/00 (2006.01) | ||
| U.S. Cl. 600—117 [600/173] | 13 Claims |
| 1. A system for indicating the proper upright orientation of images, comprising:
a scope for acquiring images, said scope having a view vector, a longitudinal axis, and a view vector pivot axis angularly
offset from the longitudinal axis about which the view vector pivots;
at least three rotation sensors for monitoring rotation of said scope about three substantially orthogonal axes and generating
signals therefor;
a processor connected to said rotation sensor that receives the signals and calculates an image upright direction based thereon;
and
a display device connected to said scope for displaying the acquired images, wherein the display device displays with the
images a graphical representation of a three-dimensional indicator of the calculated image upright direction based on the
rotation of said scope relative to each of the three substantially orthogonal axes;
wherein the calculated upright direction is further based on the pivoting of the view vector relative to the longitudinal
axis of said scope.
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