A monitoring system a user activity sensor to determine patterns of activity based upon the user activity occurring over time.

A device for detecting stenosis comprising disposable components to ensure function and sanitary conditions, said device having a disposable sensing pad, a disposable piezo assembly, and a disposable sensing pod; wherein the entire device can be disposed of after a predetermined number of uses to ensure accuracy of results and of sanitary conditions.

There is disclosed herein examples of systems and methods of processing captured heart sounds with frequency-dependent normalization. Based on an amount of attenuation of a first heart sound, a second heart sound can be normalized by modifying portions of the second heart sound by amounts determined based on frequencies of the portions. Accordingly, the systems and methods disclosed herein can result in different amounts of modification of different portions of the second heart sound based on the different frequencies of the portions.

The present description relates generally to methods and systems for wireless communication between a digital (e.g., electronic) stethoscope and other electronic devices (e.g., computing and listening devices). In one example, a method comprises operating an electronic stethoscope in one of an internal digital mode and a wireless digital mode based on a detected user action. In this way, the electronic stethoscope may be quickly adjusted between projecting sound via integrated speakers and transmitting sound to an external electronic device, enabling efficient remote monitoring of a patient.

The proposed technology relates to a method for indicating a risk for coronary artery disease. A sound recording is obtained (100) covering a plurality of heartbeats, a plurality of heart sounds are identified (200) in the sound recording, and a plurality of segments are obtained (300) from the sound recording. A frequency power measure is determined (400) based on the signal strength of a first frequency window of a period in the diastole, an amplitude of the fourth heart sound is determined (500) based on the plurality of heart sounds and the plurality of segments, and an indication of a heart rate variability is determined (600) based on the plurality of heart sounds. The indication of the risk for coronary artery disease is then determined (700) based on the frequency power measure, the amplitude of the fourth heart sound, and the indication of the heart rate variability.

A blood pressure cuff may comprise an alignment component, a sleeve, and a tapered inflatable bladder disposed within the sleeve. The tapered inflatable bladder may have a width that increases as the distance from the alignment component increases, and the tapered inflatable bladder and the alignment component may be configured to position the blood pressure cuff around a limb having a blood vessel and a circumference, such that at a position coincident with the blood vessel, the width of the tapered inflatable bladder is about 40% of the circumference of the limb. A method of using such a blood pressure cuff may comprise placing the alignment component at the position coincident with the blood vessel of the limb, wrapping the cuff around the limb such that the width of the tapered inflatable bladder overlaying the blood vessel is about 40% of the circumference of the limb, and inflating the bladder.

A method and system for determining blood pressure are disclosed. The method comprises determining a plurality of heart sounds using a microphone of a handheld device and determining a pulse wave using a camera of the handheld device, wherein the plurality of heart sounds and the pulse wave are utilized to determine the blood pressure. The system includes a processor, a memory device coupled to the processor, and an application coupled to the memory device. The system further comprises a microphone coupled to the processor, wherein the microphone is utilized to determine a plurality of heart sounds and a camera coupled to the processor, wherein the camera is utilized to determine a pulse wave, further wherein the application, when executed by the processor, causes the processor to determine the blood pressure using the plurality of heart sounds and the pulse wave.

Provided are a heart physiological parameter measurement method, device and terminal, and a computer storage medium. The method comprises: respectively obtaining back vibration information and shoulder vibration information of an object to be measured in a supine state by means of one or more shoulder vibration sensitive sensors and back vibration sensitive sensors; respectively generating first hemodynamic related information and second hemodynamic related information on the basis of the back vibration information and the shoulder vibration information, the second hemodynamic related information comprising right shoulder second hemodynamic related information generated from right shoulder vibration information; determining a reference AVC time point of an AVC event on the basis of the first hemodynamic related information; and determining an AVC feature point of the AVC event on the basis of the reference AVC time point and the right shoulder second hemodynamic related information.

A system includes one or more sensors to detect activities of a mobile object; and a processor coupled to the sensor and the wireless transceiver to classify sequences of motions into groups of similar postures each represented by a model and to apply the models to identify an activity of the object.

The present disclosure relates to a method, an apparatus and a computer program for noninvasively determining a cause of a blood pressure change. The method includes at least: obtaining maximum amplitudes of heart sounds; monitoring changes in the maximum amplitudes; estimating change amounts of indexes on a myocardial contractile force and on vascular resistance, based on increasing or decreasing of a blood pressure of the patient, and the changes in the maximum amplitudes; and determining the cause of the blood pressure change of the patient as an effect of at least one of alpha action, alpha blockage, beta action and beta blockage, based on results of the estimation of the first change amount of the first index, the second change amount of the second index and the third change amount of the third index.