Portable circuit and method for performing a time study and analysis of bodily characteristics
First Claim
1. A circuit for monitoring over a period of study time a bodily ionic characteristic comprising:
- transducer means for measuring the ionic characteristic and generating an analog signal proportional thereto;
interface means for receiving said analog signal from said transducer means and converting said analog signal into a representative digital signal, said interface means including adjustment means for permitting variable correction for drift in calibration of said transducer means occurring during the period of study time; and
,processor means for receiving said digital signal, sampling said digital signal at preselected occasions over the study period, and storing said sampled digital signal for subsequent data analysis.
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Abstract
A portable circuit and method for performing a time study and analysis of bodily ionic characteristics as esophageal pH includes a transducer 11 for measuring pH and generating a proportional analog signal and an interface 12 for converting this signal into a representative digital signal including offset and gain controls 23,24 for permitting correction for transducer 11 calibration drift during the study period. A processor 14 receives and stores all digital signals for rapid transmission to a data analysis after the study period is ended. Esophageal pH values are measured and stored for a plurality of pre-study and post-study known conditions.
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Citations
5 Claims
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1. A circuit for monitoring over a period of study time a bodily ionic characteristic comprising:
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transducer means for measuring the ionic characteristic and generating an analog signal proportional thereto; interface means for receiving said analog signal from said transducer means and converting said analog signal into a representative digital signal, said interface means including adjustment means for permitting variable correction for drift in calibration of said transducer means occurring during the period of study time; and
,processor means for receiving said digital signal, sampling said digital signal at preselected occasions over the study period, and storing said sampled digital signal for subsequent data analysis. - View Dependent Claims (2)
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3. A method for monitoring over a period of study time a bodily ionic characteristic comprising the steps of:
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determining the ionic characteristic for a plurality of pre-study conditions and recording first digital signals representive thereof; measuring by transducer the ionic characteristic throughout the study period and at preselected occasions recording second digital signals representative thereof; determining the ionic characteristic for a plurality of post-study conditions and recording third digital signals representive thereof; providing said first digital signals, said second digital signals and said third digital signals to a data analysis device; and
,correcting said measured ionic characteristic for variable drift in calibration of said transducer occurring during the period of study time. - View Dependent Claims (4, 5)
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Specification