609 results about "Heart rate monitoring" patented technology

A drowning or asphyxiation prevention system and methods are set forth, for facilitating drowning prevention of swimmers in bodies of water, such as pools, lakes or the like. The drowning prevention safety system comprises a wearable article worn by a swimmer, an alarm indicator for transmitting an alarm condition. The system may further include an alarm receiving system for receiving the alarm signal from the alarm transmitting device. The invention also relates to a heart rate monitoring system comprising a patch type portion to be adhesively applied to the skin of a user to monitor the electrical activity of the heart and generate heart rate information that is communicated to a separate wearable device, such as a wrist worn device.

A biometric monitoring device measuring various biometric information is provided that allows the person to take and/or display a heart rate reading by a simple user interaction with the device, e.g., by simply touching a heart rate sensor surface area or moving the device in a defined motion pattern. Some embodiments of this disclosure provide biometric monitoring devices that allow a person to get a quick heart rate reading without removing the device or interrupting their other activities. Some embodiments provide heart rate monitoring with other desirable features such as feedback on data acquisition status.

This is directed to an electronic device having an integrated sensor for detecting a user's cardiac activity and cardiac electrical signals. The electronic device can include a heart sensor having several leads for detecting a user's cardiac signals. The leads can be coupled to interior surfaces of the electronic device housing to hide the sensor from view, such that electrical signals generated by the user can be transmitted from the user's skin through the electronic device housing to the leads. In some embodiments, the leads can be coupled to pads placed on the exterior of the housing. The pads and housing can be finished to ensure that the pads are not visibly or haptically distinguishable on the device, thus improving the aesthetic qualities of the device. Using the detected signals, the electronic device can identify or authenticate the user and perform an operation based on the identity of the user. In some embodiments, the electronic device can determine the user's mood from the cardiac signals and provide data related to the user's mood.

A wrist-worn apparatus for monitoring a user's performance while playing golf includes a user input, a processor, a heart rate monitor, a timer, a user input, a display, a processor and a memory for storing a plurality of inputted golf parameters that pertain to a round of golf. The apparatus obtains and displays the user's heart rate, providing feedback on the user's heart rate during a round of golf. In addition, the apparatus can store various inputted golf parameters and compute calculated statistics one or more rounds of golf.

During childbirth, trauma to the infant can readily arise, ultimately resulting in fetal hypoxia, academia, and brain damage. Such unfavorable conditions can be best ascertained by real-time monitoring of the fetus' blood-oxygen level, heart rate monitoring, EKG and EEG waveforms. This invention describes a system of monitoring devices to implement such goals and maximize the potential welfare of the fetus. It furthermore allows the formation of a reference database that can correlate intrapartum events from prior births. The embodiments utilize a small-diameter sensor inserted into the birth canal through a tubular insertion rod. Through wire, fiber optics, and or using a radio frequency link, fetal monitor data can be analyzed, compared to existing data base, and or transmitted via internet. This patent details various apparatuses that allow important life-sign parameters of a fetus to be continuously monitored.

An implantable device for providing electrical stimulation of cervical vagus nerves for treatment of chronic cardiac dysfunction with leadless heart rate monitoring is provided. A stimulation therapy lead includes helical electrodes configured to conform to an outer diameter of a cervical vagus nerve sheath, and a set of connector pins electrically connected to the helical electrodes. A neurostimulator includes an electrical receptacle into which the connector pins are securely and electrically coupled. The neurostimulator also includes a pulse generator configured to therapeutically stimulate the vagus nerve through the helical electrodes in alternating cycles of stimuli application and stimuli inhibition that are tuned to both efferently activate the heart's intrinsic nervous system and afferently activate the patient's central reflexes by triggering bi-directional action potentials. Finally, the neurostimulator includes an integrated leadless heart rate sensor configured to sense heart rate and to record the sensed heart rate as data into a memory.

A new PPG/SpO₂ based ear hook sensor was constructed with the PPG/SpO₂ sensors are attached to the skin in the regions of superficial artery and vein (010) and posterior auricular artery and vein around the ear (011 of FIG. 1C). An ear wearable heart rate monitor is constructed with PPG/SpO₂ sensors are attached to the skin in the regions of superficial artery and vein (010) and posterior auricular artery and vein around the ear (011 of FIG. 1C) (temporal region of the head). This sensor system is less vulnerable to motion artifacts hence capable of producing high quality PPG signals under motion conditions such as running and exercising.

Methods for heart rate measurement based on pulse oximetry are provided that can tolerate some degree of relative displacement of a photoplethysmograph (PPG) heart rate monitor device. In some methods, artifact compensation based on a reference signal is performed on the PPG signal data to remove artifacts in the signal that may be caused, for example, by changes in ambient light and/or motion of a person wearing the monitor device. The reference signal used for artifact compensation may be generated using an LED of a complementary wavelength to that of the LED used to generate the PPG signal, or by driving an LED at a lower current than the current applied to generate the PPG signal.

A combined respiratory and heart rate sensor for a mammal has a flexible support with a surface adapted to be positioned over the skin of a mammal. A pair of inductive coil or capacitive plate elements, spaced apart by a foam spacer having openings therein, are attached to the support surface and are capable of independently sensing respiratory movement of the mammal in a direction perpendicular to the support surface and producing an output signal proportional thereto. The heart rate sensor includes an LED attached to the flexible support capable, and at least two light-detecting elements spaced apart from the LED, each capable of independently sensing light radiation reflected through the skin and capillaries from the light-emitting element and producing an output signal proportional thereto. A barrier layer attached to the support shield from the light-detecting elements light radiation that is not emitted from the LED.

A continuous, non-invasive fetal heart rate measurement is produced using one or more ultrasonic transducer array patches that are adhered or attached to the mother. Each ultrasound transducer array is operated in an autonomous mode by a digital signal processor to obtain data from which fetal heart rate information can be derived. Each ultrasonic transducer array patch comprises a multiplicity of subelements that are switchably reconfigurable to form elements having different shapes, e.g., annular rings. Each subelement comprises a plurality of interconnected cMUT cells that are not switchably disconnectable. The use of cMUT patches will provide the ability to interrogate a three-dimensional space electronically (i.e. without mechanical beam steering) with ultrasound, using a transducer device that is thin and lightweight enough to stick to the patient's skin like an EKG electrode. The ultrasound device can track the fetal heart in three-dimensional space as it moves due to the mother's motion or the motion of the unborn child within the womb.

A heart rate monitoring system for use in sport and fitness training that includes a sensor belt worn on the waist of the user and a display device worn on the wrist of the user. The sensor belt has a pair of sensors that can be located on opposite sides of the body in various locations, such as near the kidneys, near the ilium bones in the pelvis, or on the front abdominal area of the user. Various signal processing techniques are employed to extract the degraded signal that is available at the waist area as compared to the chest area. These signal-processing techniques include bandpass filtering, an adaptive time window, a delayed transmission to allow for correction methods such as missed beat replacement and extra beat deletion, a lead off detection and adjustment algorithm, automatically adjustable gain control, and waveform detection and characterization.

The invention discloses a heart rate estimation method and device for wearable heart rate monitoring equipment. The heart rate estimation method mainly includes: removing motion artifact and tracking heart rate spectrum peak, where motion artifact removing includes: utilizing a nonlinear self-adaptive filter method to capture a nonlinear relation between noise reference signals and motion artifact noise in pulse wave signals so as to effectively eliminate motion artifact interference, adopting a binary decision-making method based on classification to judge whether filtered pulse wave signals still contain a lot of noise or not, and adopting a singular spectrum analysis method to further eliminate noise interference of the pulse wave signals still containing noise; heart rate spectrum peak tracking based on frequency spectra includes: positioning heart rate spectrum peak of each time window, namely positioning the heart rate spectrum peak on the basis of a nonlinear positioning method, and positioning the heart rate spectrum peak on the basis of a classification positioning method if the nonlinear positioning method fails. The heart rate estimation method is used for heart rate estimation and is high in calculating accuracy and low in complexity, so that enforceability of the wearable monitoring equipment is guaranteed.

A system for measuring gait kinematics information during exercise of a subject comprising a fixing member adapted for fixing onto the trunk of the body of the subject; an acceleration sensor attached to the fixing member for sensing the vertical acceleration of the trunk of the body of the subject; and a microprocessor coupled to the acceleration sensor adapted to receive the vertical acceleration data from the acceleration sensor, and to compute and derive the speed and distance traversed by the subject, and to communicate the speed and distance information. In the preferred embodiment, a heart-rate monitoring device is also provided.

The invention discloses an exercise heart rate monitoring method and apparatus. The method includes: acquiring exercise heart rate of a user during an exercise process; if the exercise heart rate of the user acquired at any moment during the exercise process is not less than a preset upper limit of the exercise rate of the user acquired at any moment or is not greater than a preset lower limit of the exercise heat rate of the user acquired at any moment, giving an alarm. The preset upper or lower limit of the exercise heart rate of the user acquired at any moment is determined according to physical power characteristics of the user and exercise strength required for the exercise process. According to the scheme, the ranges of normal exercise heart rate matching with users can be flexibly determined according to the information such as physical power characteristics of the users and the exercise strength required for the exercise process, thus, the existing problem that fixation of the heart rate threshold leads to inaccuracy in heat rate monitoring is avoided and heart rate monitoring is more accurate.

The invention provides an autoreflection heart rate detector and belongs to the field of wearable electronic equipment. The heart rate detector is wearable electronic equipment; the wearable electronic equipment comprises an integrated heart rate LED (Light-Emitting Diode) transceiver, a heart rate signal front end processing circuit, a capacitive skin contact sensor, an MCU (Main Control Unit), a tri-axis gravity acceleration sensor module, a micromotor, a shaking alarm module, a bluetooth low-power-consumption radio frequency module and a display module. The heart rate detector is capable of continuously detecting human body heart rate change condition of a user in real time for 24 hours and automatically analyzing the human body heart rate changes of the user under different human body physical states. According to the technical scheme, the heart rate detector is capable of monitoring whether the user wears the wearable electronic equipment; a wireless connection is established between the heart rate detector and intelligent mobile equipment by use of the bluetooth low-power-consumption radio frequency module, so that the wearable electronic equipment is capable of giving out an alarm prompt on abnormal heart rate by use of the wireless connection with the intelligent mobile equipment, preventing diseases or body discomfort prompted by heart rate abnormity of the user and realizing a remote human body heart rate monitoring function.

The invention relates to the technical field of biomedical engineering, in particular to a heart rate detection method based on an ordinary camera. The heart rate detection method includes the steps that firstly, a front face video image is collected by the ordinary camera, a face region is extracted from the image by using a face detection algorithm and a face tracking technology, a forehead is selected and located as an interested region, and the interested region is extracted as a region for signal acquisition; then technologies of basic color separation, independent component analysis andthe like are used, a pulse source signal is extracted from the interested region, and treated by wavelet filtering, and pure pulse waves are obtained; and finally, a discrete fourier transform algorithm is used for transforming the signal from a time domain into a frequency domain, an energy spectrum is obtained and analyzed, and then a heart rate value is calculated. According to the heart rate detection method based on the ordinary camera, the detection efficiency and the use experience of a testee are effectively improved, and the heart rate detection method is suitable for long-term heartrate monitoring and disease prevention.

The invention relates to the field of human body parameter monitoring technologies and drowning-prevention lifesaving equipment, and discloses a drowning-prevention auxiliary device which resolves the problems that a drowning-prevention monitoring scheme in the prior art is likely to have alarming failures and does not have an auxiliary lifesaving function. The drowning-prevention auxiliary device comprises a neck wearable assembly, a controller, an energy storage assembly, a heart rate monitoring assembly, a drowning alarming assembly and a drowning-prevention auxiliary lifesaving assembly, wherein the neck wearable assembly is used for installing and fixing other assemblies and putting the drowning-prevention auxiliary lifesaving assembly on the neck of the human body, and the controller is connected with the energy storage assembly, the heart rate monitoring assembly, the drowning alarming assembly and the drowning-prevention auxiliary lifesaving assembly and has the functions of information analysis, information processing and control; the energy storage assembly provides electricity for the whole device; the heart rate monitoring assembly tracks and obtains the heart rate and changing conditions of people in real time and feeds an instruction back to the controller; the drowning alarming assembly comprises a buoy capable of being automatically started and ejected out; the drowning-prevention auxiliary lifesaving assembly comprises an air bag capable of being automatically started and ejected out.