Ambulatory patient monitoring system
First Claim
1. An ambulatory patient monitoring system for measuring and storing a plurality of diagnostic parameter values useful for clinical evaluation of a patient, comprising:
- an ambulatory patient monitoring device including a portable power supply;
microprocessor means coupled to said portable power supply for controlling the measurement and storage of said diagnostic parameter values;
nonvolatile memory means coupled to said microprocessor means for storing both said plurality of diagnostic parameter values and a control algorithm, said nonvolatile memory being formed by a plurality of electrically programmable, electrically erasable semiconductor memory devices, each of said memory devices being electrically erasable;
means for erasing said semiconductor memory devices of said nonvolatile memory means;
random access memory means coupled to said microprocessor means for temporary storage of said control algorithm, said microprocessor means transferring said control algorithm (1) from said nonvolatile memory means to said random access memory means preceding electrical erasure of said nonvolatile memory means, and (2) back to said nonvolatile memory means subsequent to said erasure thereof;
signal conditioning means coupled to said microprocessor means for providing said diagnostic parameters thereto; and
input means coupled to a patient for sensing diagnostic parameters therefrom, said input means having an output coupled to said signal conditioning means.
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Accused Products
Abstract
An ambulatory patient monitoring system (100) is provided for measuring and storing predetermined diagnostic parameters of a patient. The monitoring system includes a personal type computer (120) which may be selectively coupled to the portable portion (102) of system (100). Portable portion (102) may include one or more monitoring modules, such as ECG monitoring unit (110) and blood pressure monitoring unit (210). When ECG monitoring unit (110) and blood pressure monitoring unit (210) are disposed in side-by-side relationship and with respective optical interfaces (50, 254) in optical alignment, the two units operate in concert. ECG monitoring unit (110) supplies an R-wave gating signal to blood pressure monitoring unit (210) for establishing a window in which the receipt of a Korotkoff sound is expected. Additionally, the ECG unit (110) may trigger the blood pressure unit (210) to take a reading responsive to unit (110) identifying a predetermined abnormality in the ECG signal. Alternately, ECG monitoring unit (110) and blood pressure monitoring unit (210) may be used independently of one another as separate monitoring devices.
63 Citations
9 Claims
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1. An ambulatory patient monitoring system for measuring and storing a plurality of diagnostic parameter values useful for clinical evaluation of a patient, comprising:
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an ambulatory patient monitoring device including a portable power supply; microprocessor means coupled to said portable power supply for controlling the measurement and storage of said diagnostic parameter values; nonvolatile memory means coupled to said microprocessor means for storing both said plurality of diagnostic parameter values and a control algorithm, said nonvolatile memory being formed by a plurality of electrically programmable, electrically erasable semiconductor memory devices, each of said memory devices being electrically erasable; means for erasing said semiconductor memory devices of said nonvolatile memory means; random access memory means coupled to said microprocessor means for temporary storage of said control algorithm, said microprocessor means transferring said control algorithm (1) from said nonvolatile memory means to said random access memory means preceding electrical erasure of said nonvolatile memory means, and (2) back to said nonvolatile memory means subsequent to said erasure thereof; signal conditioning means coupled to said microprocessor means for providing said diagnostic parameters thereto; and input means coupled to a patient for sensing diagnostic parameters therefrom, said input means having an output coupled to said signal conditioning means. - View Dependent Claims (2)
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3. An ambulatory patient monitoring system for measuring and storing a plurality of blood pressure values useful for clinical evaluation of a patient, comprising:
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an ambulatory patient monitoring device including a portable power source and means for noninvasively monitoring and measuring the patient'"'"'s blood pressure by an auscultatory method and an oscillometric method, and means for selectably calculating such blood pressure values by the auscultatory method and the oscillometric method; microprocessor means coupled to said portable power source for controlling the measurement and storage of said diagnostic parameter values; memory means coupled to said microprocessor means for storing said plurality of diagnostic parameter values; means for stopping and starting operation of said microprocessor means to thereby conserve power from said portable power source, said stopping and starting means including clock means for generating a periodic interrupt signal to restart said microprocessor means; signal conditioning means coupled to said microprocessor means for providing said diagnostic parameters thereto; and input means coupled to a patient for sensing diagnostic parameters therefrom, said input means having an output coupled to said signal conditioning means. - View Dependent Claims (4, 5, 6, 7, 8, 9)
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Specification