SIMULTANIOUS MULTI-PARAMETER PHYSIOLOGICAL MONITORING DEVICE WITH LOCAL AND REMOTE ANALYTICAL CAPABILITY
First Claim
1. A portable handheld device for simultaneously monitoring pulse waveforms indicative of blood pressure, blood oxygen levels, and electrocardiogram signals, said device comprising:
- a handheld base unit comprising a microprocessor or microcontroller, software, memory, display, and user control inputs;
said handheld base unit further comprising an air pump and valve for driving a blood pressure monitoring cuff, at least one detector to monitor pulse input from said blood pressure monitoring cuff, and an external cuff port to accommodate the tubing for said blood pressure monitoring cuff;
said handheld base unit further comprising an external first ECG electrode configured to touch the patient'"'"'s hand while the patient is holding said handheld base unit, ECG amplifier, and an electrical ECG/oximeter port to receive input from a second ECG electrode mounted on the interior of an external finger pulse oximeter/ECG electrode device, thereby also obtaining electrocardiogram pulse wave information;
said electrical ECG/oximeter port further configured to drive a plurality of finger pulse oximeter light sources at a plurality of wavelengths, and to receive photodetector signals from said finger pulse oximeter/ECG electrode device;
wherein when a blood pressure monitoring cuff is plugged into said external cuff port and placed around the limb of a patient, and said external finger pulse oximeter/ECG electrode device is further placed around a digit of said patient, said device is configured to apply varying amounts of air pressure to said cuff and obtain pulse wave information from said cuff, said device is also configured drive said external finger pulse oximeter/ECG electrode device at a plurality of wavelengths, and obtain blood hemoglobin absorbance information as a function of wavelength and as a function of pulse wave, and said device is configured to monitor electrical signals from said first ECG electrode and second ECG electrodes, thereby deriving electrocardiogram pulse wave information;
wherein said device software is configured to direct said microprocessor or microcontroller to store in either local or remote memory, either direct or mathematically processed versions of said blood pressure monitoring pulse wave information, said external finger pulse oximeter/ECG electrode device blood hemoglobin absorbance information as a function of wavelength pulse wave information, and said electrocardiogram pulse wave information.
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Abstract
Handheld medical diagnostic instrument that provides high time-resolution pulse waveforms associated with multiple parameters including blood pressure measurements, blood oxygen saturation levels, electrocardiograph (ECG) measurements, and temperature measurements. The device stores and analyzes the pulse waveforms simultaneously obtained from all tests, and thereby allows an unusually detailed view into the functioning of the user'"'"'s cardiovascular heart-lung system. The device is designed for use by unskilled or semi-skilled users, thus enabling sophisticated cardiovascular measurements to be obtained in a home environment. Data from the device can be analyzed onboard, with local computerized devices, and with remote server based systems. The remote server may be configured to analyze this data according to various algorithms chosen by the physician to be most appropriate to that patient'"'"'s particular medical condition (e.g. COPD patient algorithms). The server may be further configured to automatically provide alerts and drug recommendations.
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Citations
20 Claims
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1. A portable handheld device for simultaneously monitoring pulse waveforms indicative of blood pressure, blood oxygen levels, and electrocardiogram signals, said device comprising:
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a handheld base unit comprising a microprocessor or microcontroller, software, memory, display, and user control inputs; said handheld base unit further comprising an air pump and valve for driving a blood pressure monitoring cuff, at least one detector to monitor pulse input from said blood pressure monitoring cuff, and an external cuff port to accommodate the tubing for said blood pressure monitoring cuff; said handheld base unit further comprising an external first ECG electrode configured to touch the patient'"'"'s hand while the patient is holding said handheld base unit, ECG amplifier, and an electrical ECG/oximeter port to receive input from a second ECG electrode mounted on the interior of an external finger pulse oximeter/ECG electrode device, thereby also obtaining electrocardiogram pulse wave information; said electrical ECG/oximeter port further configured to drive a plurality of finger pulse oximeter light sources at a plurality of wavelengths, and to receive photodetector signals from said finger pulse oximeter/ECG electrode device; wherein when a blood pressure monitoring cuff is plugged into said external cuff port and placed around the limb of a patient, and said external finger pulse oximeter/ECG electrode device is further placed around a digit of said patient, said device is configured to apply varying amounts of air pressure to said cuff and obtain pulse wave information from said cuff, said device is also configured drive said external finger pulse oximeter/ECG electrode device at a plurality of wavelengths, and obtain blood hemoglobin absorbance information as a function of wavelength and as a function of pulse wave, and said device is configured to monitor electrical signals from said first ECG electrode and second ECG electrodes, thereby deriving electrocardiogram pulse wave information; wherein said device software is configured to direct said microprocessor or microcontroller to store in either local or remote memory, either direct or mathematically processed versions of said blood pressure monitoring pulse wave information, said external finger pulse oximeter/ECG electrode device blood hemoglobin absorbance information as a function of wavelength pulse wave information, and said electrocardiogram pulse wave information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of simultaneously monitoring pulse waveforms indicative of blood pressure, blood oxygen levels, and electrocardiogram signals, said method comprising:
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providing a portable handheld base unit comprising a microprocessor or microcontroller, software, memory, display, and user control inputs; said handheld base unit further comprising an air pump and valve for driving a blood pressure monitoring cuff, at least one detector to monitor pulse input from said blood pressure monitoring cuff, and an external cuff port to accommodate the tubing for said blood pressure monitoring cuff; said handheld base unit further comprising an external first ECG electrode configured to touch the patient'"'"'s hand while the patient is holding said handheld base unit, ECG amplifier, and an electrical ECG/oximeter port to receive input from a second ECG electrode mounted on the interior of an external finger pulse oximeter/ECG electrode device, thereby also obtaining electrocardiogram pulse wave information; said electrical ECG/oximeter port further configured to drive a plurality of finger pulse oximeter light sources at a plurality of wavelengths, and to receive photodetector signals from said finger pulse oximeter/ECG electrode device; said blood pressure monitoring cuff being plugged into said external cuff port; said external finger pulse oximeter/ECG electrode device being plugged into said electrical ECG/oximeter port; placing said blood pressure monitoring cuff around the limb of a patient; placing said external finger pulse oximeter/ECG electrode device around the digit of said patient; instructing said patient to hold said base unit so that said first ECG electrode makes electrical contact with the hand of said patient holding said base unit, while said second ECG electrode makes electrical contact with a digit on either a different hand or a toe of said patient; using said air pump and valve to apply varying amounts of air pressure to said cuff and obtaining pulse wave information data from said cuff as a function of air pressure; driving said external finger pulse oximeter/ECG electrode device at a plurality of wavelengths, and using said photodetector to obtain blood hemoglobin absorbance information data as a function of wavelength and as a function of pulse wave; monitoring electrical signals from said first ECG electrode and second ECG electrodes, thereby deriving electrocardiogram pulse wave information data; using said microprocessor or microcontroller to store either direct or mathematically processed versions of said blood pressure monitoring pulse wave information, said external finger pulse oximeter/ECG electrode device blood hemoglobin absorbance information as a function of wavelength pulse wave information, and said electrocardiogram pulse wave information in either local memory or remote memory. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification