172 results about "Pulse rate" patented technology

A photoplethysmogram system and method are disclosed. The system includes at least three light sources of different frequencies configured to emit light into a subject's skin. A PPG sensor detects the light from the multiple light sources after it has passed through the subject's skin and generates a PPG signal for each light source. A processor, communicatively coupled to the PPG sensor, receives the PPG signals and estimates physiological parameters from each PPG signal. The light sources may include a red light source, an infrared light source, and a green light source, with the green light source used for calibration in the measurement of blood oxygen saturation. The processor may dynamically perform amputation or imputation of the PPG signals based on the consistency of the signals from the different light sources. The physiological parameters may include respiratory effort and pulse rate and pulse rate variability.

A wearable device to measure a user's physiological parameters comprising one or more biosensors, as well as a light source comprising light emitting diodes, lenses for directing light towards tissue of the user comprising blood vessels, and a detection system receiving reflected tissue light. The physiological parameters, for example hypertension, are measured with a differential measurement. For example, the physiological parameters may be associated with pulse rate and blood flow. The output signal is associated with the physiological parameters, and artificial intelligence may be used in making decisions regarding the output signal. Signal-to-noise ratio of the output signal may be improved by synchronizing the detection system to the light source, increasing light intensity, and detecting a change. The wearable device is configured to determine that is being worn by the user and may be configured to communicate with a smartphone or tablet.

The embodiment of the invention provides a control method of an oxygen generation system and an adjustable oxygen generation system, and belongs to the technical field of medical instruments. The control method of the oxygen generation system comprises the steps that 1, the threshold value interval of a pulse rate normal value and the threshold value of an oxyhemoglobin saturation normal value are obtained; 2, receiving a pulse rate monitoring value and a blood oxygen saturation monitoring value of a user of the oxygen generation system; 3, according to the threshold value interval, the threshold value, the received pulse rate monitoring value and the received oxyhemoglobin saturation monitoring value, the oxygen output quantity of the oxygen generation system is controlled, and the oxygen output quantity is the oxygen generation pressure and / or the oxygen output rate. According to the method, the performance parameters of the oxygenerator can be timely and automatically adjusted according to the physiological parameter change of the user of the oxygenerator, so that the requirements of the user at the current moment are met.

The invention particularly relates to an old people health condition monitoring system based on a wristband oximeter. The system comprises a state determination module; a motion index module; a fatigue index module; and an analysis processing module. According to the system, the wrist strap type oximeter obtains the exercise step number, monitors key physiological parameters such as the blood oxygen saturation degree, the pulse rate and the perfusion index, and deeply analyzes the parameters in different exercise states to obtain the exercise index, the fatigue index and the cooperation index, so that the multi-dimensional comprehensive monitoring of the health condition of the old people is realized; the physical state of the old people can be reflected more accurately, and potential health problems can be found in time.

A steering wheel system is disclosed for monitoring a driver's vital signs of a driver. The steering wheel system comprises a steering wheel and sensors integrated into the steering wheel. The sensors are configured to detect one or more driver vital signs. The steering wheel system comprises a memory storing computer executable instructions, and a processor configured to execute the computer executable instructions. The processor receives the one or more vital signs from the array of sensors, wherein the one or more vital signs correspond to cortisol levels, alcohol levels, one or more proteins associated with an occurrence stroke, one or more biomarkers associated with myocardial infarctions, temperature, pulse rate, and oxygen levels. The processor determines a health risk of the driver based at least in part on the vital signs and alerts the driver in response to the health risk exceeding a certain health risk level.

The invention discloses a wireless multi-parameter monitoring system. According to the technical scheme, the wireless multi-parameter monitoring system is characterized by comprising a host, a transmitter gateway and at least one parameter monitoring component; the parameter monitoring component comprises at least one of a body temperature probe module, an electrocardiogram monitoring module and a pulse rate / blood oxygen probe module; the host is in wireless communication connection with the parameter monitoring component through the transmitter gateway so as to receive and process physiological parameter data collected by the parameter monitoring component. The wireless transmission technology (Bluetooth and a wireless local area network) is adopted, the constraint of wired connection is thoroughly eliminated, the monitoring host can be separated from the peripheral space of the body of a patient, remote monitoring or monitoring in different space sites is achieved, the monitoring scene is greatly expanded, and the system is particularly suitable for special scenes such as the radiotherapy environment.

The invention relates to the technical field of health data processing, and discloses a night cardiac event early warning method based on pulse rate and blood oxygen mutation, which comprises the following steps: collecting pulse rate time sequence data, blood oxygen saturation time sequence data and original physiological signal waveform; a dynamic change vector is calculated, a personalized dynamic change vector feature library is constructed, a collaborative analysis early warning rule is established, and the rule cooperatively verifies in-library attribution of the dynamic change vector, a signal quality index of an original physiological signal waveform and accumulated duration of the dynamic change vector so as to trigger an early warning signal. According to the method, real pathological mutation, healthy physiological fluctuation, signal source pollution and transient benign anomaly can be distinguished from data processing logic, the technical problem that the false alarm rate is high due to the fact that the states are confused in an existing method is solved, and the early warning accuracy is improved.

The invention discloses a traditional Chinese medicine pulse diagnosis instrument based on multi-modal analysis and a detection method thereof.The device is composed of a shell, a master controller and three sets of pulse diagnosis components used for the cun pulse position, the guan pulse position and the chi pulse position, and each pulse diagnosis component integrates an air path sensing module, an optical sensing module and a pressure sensing module; through cooperative work of the pneumatic piston, the liquid annular bag, the thin film pressure sensor and the optical sensor, accurate collection of pulse signals is completed. The system has the automatic locating and fitting function of three-dimensional linkage of the y axis, the theta axis and the z axis, intelligent locating and layered pressurization of wrist pulse positions can be achieved, and the pulse taking manipulation of'lifting, pressing and searching 'of traditional Chinese medicine is simulated. The device synchronously obtains multi-mode signals such as pulse position, pulse rate, pulse law, pulse shape and pulse potential, and after general control filtering, correction and fusion algorithm processing, a standardized feature matrix is formed and input into a multi-mode fusion model for pulse condition classification and automatic dialectical analysis. According to the device, a visual analysis result is generated based on pulse condition characteristics in combination with eight-line syndrome differentiation and viscera syndrome differentiation.

An embodiment for determining a blood-oxygen level (e.g., SpO2) of a subject includes exposing a body portion of the subject to more than two wavelengths of electromagnetic energy, receiving a portion of the more than two wavelengths redirected by the body portion, converting the received portion of the redirected more-than-two wavelengths into signals each representing a respective group of at least one of the more than two wavelengths, and determining the blood-oxygen level (e.g., SpO2) of the subject in response to the signals. For example, such an embodiment can determine the blood-oxygen level of the subject with little or no skin-tone bias. That is, such an embodiment can determine the blood-oxygen level of the subject independently of the subject's skin tone, i.e., with little or no skin-tone-induced corruption of the determined blood-oxygen level.

The present disclosure provides an asymmetric supercapacitor that includes a negative electrode, a positive electrode, an ionic liquid electrolyte, and a separator. The negative electrode includes a tomato leaf activated carbon having a hierarchical porosity disposed on a first carbon cloth. The positive electrode includes a polyaniline disposed on a second carbon cloth; an ionic liquid electrolyte. The separator is located between the positive electrode and the negative electrode, and the ionic liquid electrolyte is present in and on the separator. The supercapacitor may be implemented in a heart pulse rate monitoring system.

A self-regulating oxygen delivery system (100) for COPD, comprising: an oxygen source designed to provide medical oxygen; a sensor module configured to record physiological parameters such as oxygen saturation (SpO2), respiratory rate and pulse rate; a microcontroller-based control unit that is functionally connected to the sensor module and the oxygen source; and an intelligent flow control mechanism controlled by the microcontroller, the system automatically adjusts the oxygen flow in real time based on the recorded physiological parameters to maintain optimal oxygen saturation levels.

The invention provides a mental stress analysis method and equipment based on pulse waves. The method is applied to physiological signal processing. The method comprises the following steps: acquiring a pulse wave signal of a target object, wherein the pulse wave signal is a signal acquired by pulse wave acquisition equipment; extracting pulse rate change information from the pulse wave signal by using a window function with the length of 0, so as to obtain a forward pulse rate; reversely correcting a problem pulse rate in the forward pulse rate by adopting a path growth mode to obtain a target pulse rate; performing forward heartbeat point search on the target pulse rate, and performing reverse correction on the heartbeat point to obtain a heartbeat interval; calculating a heart rate variability parameter according to the heartbeat interval; and calculating the heart rate variability parameter by using a pre-constructed mental stress model to obtain a mental stress parameter. According to the invention, mental stress monitoring with low burden, high reliability and high accuracy is realized.

1. The name of the design product: medical and preventive core wrist ECG and blood pressure recording smart watch (G1). 2. The use of the design product: for smart watch, detecting human ECG, blood pressure, pulse rate, heart rate and blood oxygen saturation monitoring, sleep monitoring, stress and emotion monitoring, and recording and analyzing health data. 3. The design points of the design product: the combination of shape and pattern. 4. The picture or photo that best indicates the design points: perspective view 1.

A blood oxygen concentration measurement device includes a light source unit, a light detection unit, a signal processing circuit, and a control unit. The light source generates a light signal. The light detection unit receives a penetrating signal generated by the light signal penetrating an object to generate a detection signal. The signal processing circuit receives the detection signal and processes the detection signal to generate a first processing signal. The control unit receives the first processing signal, calculates the blood oxygen value, the pulse rate and the signal strength index according to the first processing signal, and outputs the blood oxygen value, the pulse rate, and the signal strength index, or performs a low perfusion signal measurement process according to the signal strength index and the first predetermined index.

Systems and methods for laser catheter treatment in a vessel lumen. The method includes inserting the laser catheter to a location of a treatment region within the vessel lumen; presenting an image of the treatment region within the vessel lumen based on using an ultrasound (US) imaging system; and detecting in real-time a bubble cloud dependent on laser catheter operation in the treatment region (at a prescribed speed and controlling flux and pulse rate). The method determines vessel diameter, real-time location and measurements of the bubble cloud, and estimates dwell location and dwell time. A dynamic display image is presented indicating progress of the laser catheter treatment, and a command to modify laser catheter parameters can be generated in response to the estimated dwell location, the estimated dwell time, and a recommended treatment regimen.

An apparatus includes a photoplethysmography (PPG) sensor configured to measure a PPG signal associated with a user, an accelerometer configured to measure an acceleration signal associated with the user, and a processor operatively coupled to the PPG sensor and the accelerometer. The processor is configured to determine whether the user is engaging in movement based on the acceleration signal, in response to determining that the user is engaging in movement, determine a type of movement of the user based on the acceleration signal, generate a probability distribution associated with a pulse rate of the user based on the type of movement, and determine the pulse rate of the user based on the PPG signal, the acceleration signal, and the probability distribution.

This invention relates to the field of medical device technology, and more particularly to an intelligent probe patch for monitoring blood circulation in microscopic free flaps, comprising: a disposable probe patch configured to be attached to the surface or edge of the free flap; a biocompatible adhesive layer is provided on the bottom surface of the flexible base of the disposable probe patch, and an auxiliary structure is provided on the top of the flexible base to resist postoperative tissue activity or secretions; the disposable probe patch integrates an optical sensing unit and a temperature sensing unit for collecting local blood oxygen saturation, pulse rate, and surface temperature of the flap, respectively; a repeater, establishing non-contact near-field coupling with the disposable probe patch, the repeater being configured to provide working power to the disposable probe patch through near-field coupling, enabling it to operate without a built-in battery; and synchronously receiving physiological parameter data reflecting the local microcirculation status of the flap collected by the disposable probe patch; and a terminal device, wirelessly connected to the repeater, receiving and processing the physiological parameter data.

To more accurately evaluate heat stress experienced by a user.SOLUTION: The wearable terminal includes a sensor that detects a pulse rate of a user, and a controller. The controller estimates an intensity of exercise by the user from the number of pulses detected by the sensor, and determines that the user is experiencing heat stress when a degree of decrease in the number of pulses is smaller than a predetermined reference value in a period in which the estimated intensity of the exercise has decreased. Iga.SELECTED DRAWING: Figure 5

The invention relates to the technical field of physiological parameter detection, in particular to a physiological parameter detection method adaptive to individual difference factors, which comprises the following steps: (1) acquiring an electrocardiosignal and a PPG signal, and respectively performing primary filtering, primary high-frequency filtering and secondary filtering on the signals; (2) extracting an RR interval, a pulse rate, a heart rate and heart rate pulse conduction time based on the signal after the secondary filtering processing; (3) processing a differential signal corresponding to the electrocardiosignal through a first window filter coefficient, and calculating q RR interval mean values of the first window filter coefficient; (4) processing the PPG signal through a second window coefficient to obtain q differential values and pulse rates of the second window coefficient; (5) obtaining the heart rate; and (6) calculating the R wave position within the range of 20-50ms after each frame of electrocardio is finished by using the electrocardio signal, and calculating the corresponding pulse conduction time, so that the individual adaptability of physiological parameter detection is remarkably improved.

The invention is based on a method of using a laser feedback interference (LFI) sensor (10), in particular a virtual retinal display (12), preferably in data glasses (14), in which at least one laser beam (16) is output by the LFI sensor (10), and in which a reflected signal (18) originating from a previously output laser beam (16) is recorded by the LFI sensor (10). According to the invention, the pulse rate of the owner of the eye (24) and / or the blood flow direction of at least one blood vessel of the eye (24) is determined from a detected reflected signal (18) of the LFI sensor (10), said reflected signal comprising a laser speckle reflection pattern (20) of the retina (22) of the eye (24).

The invention discloses a pulse rate and oxyhemoglobin saturation calculation method and system based on signal processing. According to the method, the maximum value point and the minimum value point in the signal are accurately identified by analyzing the input signal and adopting the window-dividing processing technology, and the time difference between the adjacent extreme points is calculated, so that the pulse rate value is accurately determined. Furthermore, results of the rough channel and the detailed channel are combined, the direct current component and the first harmonic component are utilized, and the oxyhemoglobin saturation is calculated. The technical scheme is not only suitable for the condition that the signal intensity is weak, but also can be realized on a low-performance processor, and quick response of calculation is ensured. According to the method, the accuracy and the stability of blood oxygen saturation measurement are improved, and meanwhile, the calculation complexity is reduced.

The present invention relates to the field of medical monitoring, and in particular non-contact, video-based monitoring of pulse rate, respiration rate, motion, and oxygen saturation. Systems and methods are described for capturing images of a patient, producing intensity signals from the images, filtering those signals to focus on a physiologic component, and measuring a vital sign from the filtered signals. Examples include flood fill methods and skin tone filtering methods.

To provide a pulse rate estimation method and estimation system in ST or ST2 where an exercise time is short compared to a case of a conventional Ramp load, a training method that performs exercise using the pulse rate estimated by the estimation method as an index, and an exercise instruction apparatus and exercise instruction system capable of instructing exercise intensity using an individual's pulse rate in ST or ST2 as an index.SOLUTION: A pulse rate estimation method includes determining a descending start point at which the measured value of SpO2 begins to show a descending trend, or determining an inflection point at which the behavior of the value obtained by dividing blood oxygen concentration by pulse rate (SpO2 / pulse rate) changes while applying a constant load to a subject for 2 to 10 minutes such that the subject's pulse rate remains between 75% and 90% of the maximum heart rate, and estimating the pulse rate in ST or ST2 on the basis of these points. The present invention also provides an estimation system capable of implementing the estimation method, as well as a training method and an exercise instruction apparatus utilizing the estimation method.SELECTED DRAWING: None

This application provides a clinical method, system, device, and medium for detecting bowel and bladder movements. First, raw pulse rate time-series data of the patient is collected. The raw pulse rate time-series data undergoes quality verification and signal cleaning to obtain effective pulse rate time-series data. Based on the effective pulse rate time-series data, the mean pulse rate within the current detection window is calculated, and a pre-determined individualized resting pulse rate baseline value is obtained. The difference between the mean pulse rate within the current detection window and the individualized resting pulse rate baseline value is determined as the dynamic pulse rate offset. The dynamic pulse rate offset is judged using predefined bowel and bladder behavior detection rules, and the event confidence level for the current time period is output. The event confidence level is compared with a preset clinical decision threshold. If the event confidence level exceeds the clinical decision threshold, a graded early warning signal is generated and pushed to the clinical nursing system. The above scheme can achieve non-invasive detection of clinical bowel and bladder events.

To provide a non-contact pulse estimation device, etc. by a thermal camera that is more accurate than a conventional one.SOLUTION: A non-contact pulse estimation device for estimating a pulse from video data acquired by a thermal camera includes: a frequency analysis unit for executing frequency analysis for a plurality of pulse signals extracted from the video data; and a pulse component determination unit for determining a frequency component having a maximum amplitude in a pulse frequency range, which is a frequency range likely to be a pulse component, of frequency components output by the frequency analysis unit, as a pulse component.SELECTED DRAWING: Figure 1

1. The name of the design product: pulse oximeter. 2. The use of the design product: for blood oxygen saturation and pulse rate monitoring. 3. The design features of the design product: in shape. 4. The picture or photograph best indicating the design features: perspective view 1. 5. Other circumstances requiring explanation Other explanation: A part is a display panel.

To provide a health management system further accurately detecting changes in conditions of heart failure.SOLUTION: A health management system executes bathing determination processing, first acquisition processing, second acquisition processing, pulse data acquisition processing, determination processing and output processing. The bathing determination processing includes determining when a subject starts bathing or finishes bathing. The first acquisition processing includes acquiring a measurement result of the subject's blood oxygen saturation in a first measurement period as the first oxygen saturation. The second acquisition processing includes acquiring the subject's blood oxygen saturation in a second measurement period as the second oxygen saturation. The pulse data acquisition processing includes acquiring the subject's pulse rate. The determination processing includes determining the subject's condition of the heart failure on the basis of a value of the first oxygen saturation, a value of the second oxygen saturation, and a change in the pulse rate. The output processing includes outputting a determination result in the determination processing.SELECTED DRAWING: Figure 4

1. The name of the design product: pediatric oximeter (WS10B). 2. The use of the design product: applied to measure physiological parameters such as pulse rate, blood oxygen saturation, weak perfusion index, etc. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

According to the invention there is herein detailed a method for automated home oxygen therapy and a double closed-loop regulated device for regulating oxygen for automated oxygen therapy, the device and method comprising use of a controller configured for controlling the provided flow of oxygen through the valve by adjusting the valve in response to feedback from a flowmeter and a sensor; the controller configured to provide a first flow of oxygen for a first set time t1 and in response to a received first set of physiological data comprising patient SpO2 and pulse rate from the sensor, establish a second set time t2, the controller further configured for providing a variable second flow of oxygen for the second set time t2 while receiving a second set of physiological data comprising patient SpO2 and pulse rate from the sensor for establishing a third set time t3 based on the physiological data received; and providing a third flow of oxygen for the third set time t3, without feedback from the sensor.

A blood oxygen concentration measurement device includes a light source unit, a light detection unit, a sensing unit and a control unit. The light source generates a light signal. The light detection unit receives a penetrating signal generated by the light signal penetrating an object to generate a detection signal. The sensing unit senses movement of the blood oxygen concentration measurement device to output a sensing signal. The processing unit receives the detection signal and the sensing signal, and calculates a blood oxygen value and a pulse rate according to the detection signal and the sensing signal.