Tonometry sensor calibration apparatus

Details Tonometry sensor calibration apparatus Tonometry sensor calibration apparatus

1991-06-18

1993-03-23

Cohen, Lee S.

Surgery

Truss

Pad

128748, 128774, 128690, 73 1B, A61B 502

Patent

active

051955229

ABSTRACT:
A calibration apparatus for use in calibrating a tissue stress sensor used in a blood pressure monitoring system. The calibration apparatus includes a calibration head which is adapted to be retained in close proximity to a tissue stress sensor. The calibration head includes means for heating the tissue stress sensor. A calibration system is also disclosed for calibrating a blood pressure monitoring system, the blood pressure monitoring system employing a stress sensor for generating an electric output signal representative of tissue stress data. The calibration system comprises a tissue stress sensor having a displaceable diaphragm and a sealed chamber. The chamber has a continuous wall defining an inner volume and an outer volume. The displaceable diaphragm comprises a portion of the continuous wall, whereby the displaceable diaphragm is responsive to a pressure differential between the inner chamber volume and the outer chamber volume. The vacuum means is fluidly coupled to the inner volume of the sealed chamber for applying a controlled vacuum to the inner volume of the chamber whereby the diaphragm is displaced in response to the application of the vacuum. Calibration means is provided for detecting the sensors response to heating and displacing of the sensor diaphragm and for generating corrective data for use in correcting the effects of sensor temperture on the data generated by the sensor.

REFERENCES:
patent: 3219035 (1965-11-01), Pressman et al.
patent: 3842357 (1974-10-01), Hutchins
patent: 4572204 (1986-02-01), Stephens
patent: 4658829 (1987-04-01), Wallace
patent: 4901733 (1990-02-01), Kaida et al.

Affiliated with

Also associated with

Rating

Tonometry sensor calibration apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tonometry sensor calibration apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tonometry sensor calibration apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1345355