Surgery – Diagnostic testing – Measuring anatomical characteristic or force applied to or...
Patent
1999-06-03
2000-10-10
Mulcahy, John
Surgery
Diagnostic testing
Measuring anatomical characteristic or force applied to or...
200DIG2, 200 6145R, 200 6152, 3405731, 340689, G01C 906, G08B 2100, H01H 3502
Patent
active
061296864
ABSTRACT:
A patient position monitor is disclosed. The patient position monitor includes an inclinometer and a microprocessor connected to the output of the inclinometer. The inclinometer is a body axis orientation sensor having a light impermeable capsule including a cylindrical body. The longitudinal axis of the cylindrical body is parallel to the patient's body axis. The cylindrical body includes a first end portion having a circuit board with a radial array of sequentially illuminated LEDs. A light sensor is mounted on a second end portion of the cylindrical body. A light impermeable sphere disposed in the capsule between the array of LEDs and the light sensor is sized to block light emitted from a portion of the LEDs. The detection of light from the unblocked LEDs is indicative of the position of the sphere and of the orientation of the patient's body axis relative to gravity.
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