Robert D Bainbridge

US Patent:

55469418, Aug 20, 1996

Filed:

Oct 28, 1994

Appl. No.:

8/330981

Inventors:

Ran C. Zeimer - Reisterstown MD
George J. Jost - Lake In The Hills IL
Robert C. Bainbridge - Sandwich IL
Richard Schwarzbach - Naperville IL
Charles Ware - Warrenville IL
Kathleen D. Zebrowski - Hinsdale IL

Assignee:

CDS Technologies, L.L.C. - West Chicago IL

International Classification:

A61B 316

US Classification:

128652

Abstract:

An improved tenometer provides for a bellows and a stepper motor to pressurize the interior of a probe in the barrel into which the probe is fitted for moving the probe outward towards a patient's eye. The device also includes a laser for improved centering of the patient's eye over the eye piece, and a safety detection device for terminating operation of the tenometer if the probe fails to move along the barrel after a given amount of pressure is applied to the interior of the barrel and the probe. A rotatable occluder near the head rest for blocking the eye not being tested and a computer in the instrument records the eye being tested and the test results.