237 results about "Oxygen saturation" patented technology

The invention relates to the technical field of sewage treatment, in particular to an aerobic aeration treatment system for plateau domestic sewage treatment, which comprises a pretreatment unit, a biological treatment unit, an advanced treatment unit and a recycling unit which are connected in sequence, the system further comprises a data acquisition module, an aerobic aeration intelligent regulation and control module, a biochemical environment constant-temperature maintenance module, a carbon-nitrogen proportion and backflow dynamic regulation and control module, a digital twinning and sludge characteristic simulation module and an energy collaborative scheduling module. Compared with the prior art which adopts a standard aeration strategy and cannot adapt to the special environment of low air pressure and low oxygen partial pressure of the plateau, the system can accurately adapt to the plateau environment by integrating real-time atmospheric pressure and water temperature monitoring, dynamically calculating the oxygen saturation solubility and correcting the aeration control target according to the oxygen saturation solubility, so that the aeration control target is optimized. Stable supply of dissolved oxygen required by biochemical reaction is ensured, and the technical bottleneck of low efficiency of traditional sewage treatment in plateau regions is fundamentally overcome.

The invention relates to the technical field of image processing and biological signal detection, discloses a facial physiological detection method and system based on signal quality driven ROI selection, and aims to solve the problem of signal degradation of a traditional fixed geometric ROI in a complex scene. The method comprises the following steps: collecting a user face video stream through a camera and preprocessing the user face video stream; detecting a face bounding box and dividing the face bounding box into a plurality of sub-regions; calculating the signal-to-noise ratio, the periodic intensity and the motion artifact interference degree of each sub-region; screening an optimal sub-region according to a weighted fusion formula to generate a dynamic ROI mask; extracting a pure rPPG signal from the dynamic ROI mask coverage area; detrending and band-pass filtering are carried out on the rPPG signals, and physiological parameters such as the heart rate and the blood oxygen saturation degree are extracted. The system comprises a face video acquisition module, a face region positioning and segmentation module, a signal quality evaluation module, a dynamic ROI selection module, an rPPG signal extraction module and a physiological parameter estimation module. According to the technical scheme, signal degradation caused by local shielding, illumination abrupt change or attitude offset can be effectively avoided, the signal-to-noise ratio and the stability of the rPPG signal are remarkably improved, and the universality and the robustness of the method are enhanced.

A non-contact, non-invasive health monitoring device and method utilizing advanced artificial intelligence (AI) and machine learning techniques. This system captures real-time image data of a user's face using a high-resolution camera and processes the data to extract physiological signals, including Photoplethysmography (PPG, iPPG, and rPPG) and Ballistocardiography (BCG and iBCG). By leveraging facial landmark detection and deep learning models such as Convolutional Neural Networks (CNNs) and Transformers, the device predicts vital signs such as heart rate, respiratory rate, blood pressure, and oxygen saturation, alongside wellness metrics like stress levels and metabolic health. The device employs robust feature construction and signal processing modules to ensure accurate metrics under varying conditions, with error margins below 5%. Outputs are displayed in real time and integrated with external systems using standardized healthcare protocols. Applications include telehealth, fitness monitoring, public health screening, and automotive safety systems.

The invention discloses a non-inductive physical and psychological health monitoring and early warning system and method before a coal miner goes down a well, and belongs to the technical field of coal mine safety production and personnel health monitoring. A physiological monitoring unit comprises a millimeter-wave radar, an infrared camera and an imaging type photoplethysmography device, the millimeter-wave radar is installed in the center of the top of a monitoring channel, and the infrared camera is installed on the imaging type photoplethysmography device; the infrared cameras are symmetrically installed on the two sides of the channel, the imaging type photoplethysmography devices are integrated in the infrared cameras and used for synchronously collecting the core body temperature and the oxyhemoglobin saturation, and the integrated imaging type photoplethysmography devices focus on the forehead and cheek areas through the RGB channel. Reflected light intensity fluctuation signals caused by blood vessel blood volume changes are collected. Through cooperation of the three devices, non-contact synchronous collection of multiple parameters can be completed without deliberate cooperation of workers, comprehensive and continuous basic data are provided for subsequent physical and psychological health analysis, the wellhead passing efficiency is improved, and the cross infection risk of contact type devices is avoided.

The invention discloses personal life support equipment in a high-altitude environment and a cooperative control method thereof, and relates to the technical field of personal life support equipment, and the equipment comprises a respiration sensor which is arranged on a mask and is used for detecting respiration frequency and phase; the blood oxygen and heart rate sensor is worn on the wrist of the user and used for detecting the blood oxygen saturation degree and the heart rate; the body temperature sensor is attached to the chest of the user and used for detecting the core body temperature; the automatic oxygen supply device is used for providing oxygen; the intelligent heating device comprises partition heating pieces attached to the chest and the four limbs of the user and is used for partition heating; the microcontroller unit is used for formulating an optimal life support strategy according to the sensor data and intelligently and cooperatively controlling the working states of the automatic oxygen supply device and the automatic heating device according to the optimal life support strategy; the sensor data comprises respiratory frequency and phase, oxyhemoglobin saturation, heart rate and core body temperature, and dynamic oxygen supply and body temperature adjustment can be cooperatively controlled.

A system for real-time prediction of heart disease and to support clinical decisions; the system includes: a patient data acquisition module configured to receive multimodal inputs, including physiological signals selected from electrocardiographic waveforms, blood pressure readings, heart rate readings, and oxygen saturation readings, as well as demographic and lifestyle information, including age, gender, cholesterol levels, smoking habits, and family medical history; a preprocessing engine configured to perform data cleansing, imputation of missing values, categorical coding, and feature scaling, so that the input data is normalized and converted into a format suitable for machine learning; a processing core comprising a multi-core CPU / GPU system-on-chip operationally coupled with a secure storage unit, wherein the processing core is configured to execute a variety of pre-trained machine learning models, including Naive Bayes, Random Forest, Logistic Regression and Decision Tree classifiers; a model evaluation unit configured to calculate validation metrics such as precision, recall, F1 score and area under the curve for each of the models and dynamically select the model with optimal performance to generate real-time predictions for the risk of heart disease; a display interface configured to present predictive results in the form of risk probability values, confidence indices, and actionable recommendations that are mapped to clinical treatment guidelines; and a communication interface configured to transmit emergency alerts based on high-risk predictions to remote caregivers, hospitals, and emergency response systems via wireless communication protocols such as WLAN, Bluetooth, and 4G / 5G cellular connections.

The invention relates to an oxygen supply device and an intelligent oxygen supply amount adjusting method, belongs to the technical field of medical equipment, and solves the problems of low resource utilization rate and poor individual comfort caused by extensive oxygen supply in the prior art. The oxygen supply device comprises a vibration sensor used for collecting weak vibration signals of a human body; the signal processing platform is used for extracting a respiration signal, a heart impact signal and related characteristics of the respiration signal and the heart impact signal in the human body weak vibration signals and calculating the blood oxygen saturation degree; regulating and controlling the oxygen supply amount and generating a corresponding regulation and control command by monitoring the change of the oxyhemoglobin saturation and the breathing signal; and the oxygen supply output device is used for adjusting the state of a valve to carry out oxygen supply output according to the regulation and control command of the signal processing platform. Through undisturbed non-intrusive real-time monitoring of vital signs, real-time intelligent adjustment of oxygen supply is achieved, the comfort of oxygen supply is improved, and energy consumption and resource waste are reduced.

The utility model discloses a blood extracorporeal circulation device, which belongs to the technical field of blood extracorporeal circulation equipment and comprises an inner tube and an outer tube, the inner tube and the outer tube are integrally nested, one end of the outer tube is connected with an air inlet tube, the air inlet tube is communicated with oxygen inlet equipment, and the other end of the outer tube is connected with an air outlet tube. A temperature changer and a flow speed controller are connected between one end, far away from the air outlet end, of the outer pipe and the oxygen inlet equipment; one end of the inner tube is a liquid inlet end for transporting blood, the other end of a blood inlet of the inner tube is a liquid outlet end, and the liquid outlet end is connected with a temperature sensor, an oxygen saturation sensor, a blood pump and a microembolus filter; the part, in the outer pipe, of the inner pipe is made of a gas exchange membrane material, and the liquid inlet end of the inner pipe is opposite to the gas inlet pipe of the outer pipe. The blood temperature rising process is safer, meanwhile, in the blood temperature rising process, the oxygen saturation index in the blood can be directly adjusted, the blood oxygen value is simple, convenient and controllable on the basis of convenient temperature rising, temperature control and oxygen saturation of in-vitro blood circulation are carried out at the same time, and operation is easy and safe.

The invention relates to the technical field of respiratory function monitoring, and discloses a pulmonary ventilation blood flow distribution real-time monitoring method and evaluation system based on a sensor. The method comprises the following steps: acquiring multi-modal data such as a blood oxygen saturation waveform, an airflow rate waveform and a thoracic pressure waveform of a lung area; performing time synchronization processing on the data to generate a time alignment sequence; dividing the data into an inspiration phase, an expiration phase and a transition phase according to a preset rule; extracting time-frequency domain features from each phase segment, and constructing a multi-dimensional respiration feature matrix; identifying an abnormal breathing mode and marking an abnormal section through breathing phase switching frequency analysis; decomposing the normal segment feature matrix by using a lung pathological feature library to generate a pathological feature vector; a pathological feature vector is optimized through a ventilation and blood flow coupling model; and carrying out abnormal region positioning based on the lung pathology propagation network, and generating a lung partition function evaluation result. The method realizes non-invasive and real-time monitoring, and is suitable for scenes such as clinical monitoring and rehabilitation evaluation.

The invention relates to the technical field of image processing, and discloses a facial health state assessment method and system based on layered optical modeling. The objective of the invention is to solve the problems of poor face health state evaluation precision and robustness caused by rough optical modeling, mixed reflection components, weak environmental adaptability and insufficient multi-dimensional health index fusion capability in the prior art. The method comprises the following steps: synchronously acquiring a user face video sequence comprising at least two different spectral bands through a multispectral imaging device; constructing a multilayer optical transmission model of the skin tissue, and separating a specular reflection component and a diffuse reflection component from the face video sequence; extracting a physiological time sequence signal related to subcutaneous blood flow activity from the separated diffuse reflection component, and calculating heart rate, heart rate variability and blood oxygen saturation parameters; and fusing the physiological parameters and expression and micro-expression features extracted from the facial video sequence, and outputting quantitative evaluation results of fatigue degree, pressure level and emotional state through a pre-trained deep neural network model. The system comprises a multispectral image acquisition module, a layered optical modeling module, a reflection component separation module, a physiological parameter inversion module and a health state evaluation module. According to the technical scheme, the signal-to-noise ratio and stability of physiological signal extraction in a complex illumination environment can be remarkably improved, the adaptability to individuals with different skin colors and dynamic illumination conditions is enhanced, and more accurate and more robust judgment of the high-order health state is achieved.

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.

Existing pulse oximeters have impaired accuracy in measuring blood oxygen levels (SpO2) in patients of color, where the presence of melanin in the skin tends to interfere with measurements of pulse oximetry, resulting in an overestimation of SpO2. Thus, the pulse oximeter often reports a higher oxygen saturation for patients with darker skin tones, often with increasing bias as the actual saturation (SaO2) decreases. This bias is further reinforced by calibration based on individuals with light skin pigmentation, which may lead to inequitable healthcare for patients of color. Our proposed solution is to modify current pulse oximetry calculations—which utilize the relative tissue absorbance of red and infrared light to estimate SpO2—to account for the concentration of melanin by additionally measuring the skin absorbance of UV˜A light. This derived concentration of melanin can then be used to modify the pulse oximetry algorithm output, thus estimating SpO2 more accurately for patients of color.

The invention relates to a wirelessly usable sensor system, wherein the sensor system is suitable for being attached to the skin of a person and comprises the following components: (a) a measuring sensor which is suitable for measuring the oxygen saturation or the tissue perfusion of the skin covered by the sensor system and / or of the underlying tissue and outputting said oxygen saturation or tissue perfusion as a measured value; (b) an evaluation unit which is connected to the measuring sensor, is suitable for evaluating the measured value output by the measuring sensor, for comparing said measured value with a reference value and for outputting a signal if the measured value deviates from the reference value by a predetermined amount, and is suitable for learning the normal state of the tissue of a patient, for identifying patterns in the measured values measured by the measuring sensor by searching for repeating regularities in the sensor data and analyzing deviations from the determined normal state over a certain period of time, and for outputting a signal if the pattern deviates from a regularity; (c) a rechargeable energy store which supplies energy to the measuring sensor and to the evaluation unit and to further optional electronic components, and (d) a housing in which the components (a) to (c) and further optional electronic components are contained, wherein the housing is closed and impermeable to liquid such that the components (a) to (c) and further optional electronic components are protected from liquid. The sensor system is preferably used in medicine in decubitus prophylaxis.

This device for detecting oxygen saturation of percutaneous muscle comprises a light source for causing light to enter the body, and a first light detector and a second light detector for detecting reflected light reflected in the body. The second light detector is positionally shifted, in the circumferential direction about the light source, from a first imaginary line linking the light source and the first light detector.

The invention relates to an intelligent water cup integrating motion state monitoring and water replenishing reminding functions, and belongs to the technical field of intelligent home and health monitoring. The intelligent water cup comprises a cup body, a cup cover, and a main control module, a motion state monitoring module, a water volume detection module, a physiological parameter acquisition module and a reminding module which are arranged in the cup body. The system is mainly characterized in that the motion states (such as step number, motion intensity and motion duration) and physiological parameters (such as heart rate and oxyhemoglobin saturation) of a user can be monitored in real time, the water demand of the user is comprehensively analyzed through a built-in algorithm, and personalized water replenishing reminding is provided. In addition, the water cup can be connected with a mobile terminal through a communication module, and data synchronization and remote management are achieved. The problems that an existing intelligent water cup is single in function and the reminding mode is not scientific and reasonable enough are solved, the water supplementing requirements of a user in different states can be more accurately met, and the intelligent water cup has high practical value and market prospects.

This invention discloses a smart Bluetooth headset suitable for health monitoring, relating to the field of Bluetooth headset technology. It incorporates an accelerometer to collect acceleration information during the wearer's exercise, an infrared thermometer to collect body temperature information, and a photoelectric sensor to collect physiological information, including heart rate, blood pressure, and blood oxygen saturation. This allows for real-time monitoring of the wearer's exercise status and vital signs. A processor further determines the wearer's condition based on the acceleration, body temperature, and physiological information. When the wearer's condition indicates that continued exercise is unsuitable, the headset issues a stop-exercise warning signal, thus preventing accidents during exercise.

This invention provides a pulse oximeter that offers high accuracy in measuring oxygen saturation and provides continuous data suitable for measuring the oxygen saturation decline index. [Solution] The pulse oximeter includes: a saturation measurement unit 21 that measures the blood oxygen saturation of a subject 9 from detection signals of a red light sensor 12 and an infrared light sensor 13 and converts them into a measurement data group 211; an abnormal value detection unit 22 that detects abnormal values ​​221 that appear in the measurement data group 211; a first data processing unit 23 that generates a first data group 233 by removing abnormal value intervals 232 that include the abnormal values ​​221 and adjacent time ranges 231 of a predetermined length; a second data processing unit 24 that generates a second data group 243 by removing low reliability intervals 242 in which the reliability index 241 calculated on the first data group 233 is lower than a predetermined threshold L; and a third data processing unit 25 that performs data interpolation processing on the second data group 243 to generate a third data group 252 of a predetermined time length.

The invention discloses a protector for an oxygen saturation probe, which comprises an inner air bag skin and an outer air bag skin, two ends of the outer air bag skin and the inner air bag skin are hermetically connected to a first elastic rubber ring and a second elastic rubber ring, the first elastic rubber ring and the second elastic rubber ring are parallel in two annular surfaces, the outer air bag skin wraps the inner air bag skin to form an inflatable bag, and a wrapping chamber with two open ends is formed in the inner air bag skin. And a fixed inflating head is arranged on one side of the outer airbag skin. The first elastic rubber ring is larger than the second elastic rubber ring in diameter. The oxygen saturation probe has the advantages that the oxygen saturation probe can be properly expanded from the first elastic rubber ring to be stuffed into the wrapping chamber, the whole oxygen saturation probe is wrapped by the inner air bag leather, the second elastic rubber ring is located at the end of the oxygen saturation probe, then the inflation head is connected to inflate the inflation bag, the outer air bag leather is bulged, and the inner air bag leather further wraps the oxygen saturation probe. When the oxygen saturation probe falls or collides, the outer air bag skin and the inflatable bag play a role in damping and buffering, so that the oxygen saturation probe is protected from being damaged by collision.

An oral appliance may include a mouthpiece configured to be positioned in an oral cavity of a user and an electronic assembly coupled to the mouthpiece. The electronic assembly may include an oxygen sensor oriented toward soft tissue of the user's mouth to determine an oxygen saturation level of the user. The electronic assembly may be positioned within an appendage extending away from a wall of the mouthpiece.

A test platform for simulating patient conditions. In accordance with methods, systems, platforms and modules, the controller of a ventilator, may be tested. Where the ventilator manages automated mechanical ventilation controllers' maintenance of peripheral oxygen saturation (SpO2) for a simulated patient, an analogue blood oxygen output signal that is responsive to the fraction of inspired oxygen (FiO2) and the peak inspiratory pressure ventilator settings of the ventilator is tested by a test platform controller. Where the ventilator manages end-tidal carbon dioxide (EtCO2) of a simulated patient, operation of the test platform controlled by the platform controller of the test platform in providing carbon dioxide generation, lung compliance (CL) and airway resistance (RAW) states while providing an EtCO2 level that is responsive to changes in tidal volume and respiratory rate changes of the patient is tested.

A device comprising interconnected components for deoxygenating blood used in the treatment and prevention of reperfusion injury, including a configuration to reduce the ionized calcium concentration of the deoxygenated blood to less than 0.5 mmol / L. The components may include a syringe pump operably communicating with various configurations via a control unit / processor, a cannula, a pump communicating with the cannula, a heat exchanger, a device for generating / creating fluid flow, an infusion port, a mixing port, a device hub, and a catheter hub. These components are selectively connected to a subject, and monitoring and / or other lead wires / devices may be attached to the subject. The lead wires / devices may include sensors and other devices that can be attached to / connected to the subject, providing health indicators, such as a temperature sensor, electrodes for monitoring cardiac electrical activity, and an oxygen saturation (SpO2) sensor for monitoring the patient's blood oxygen saturation.

A system includes: a dialysis system configured to provide a dialysis treatment for a patient; an optical monitoring system in communication with the dialysis system, wherein the optical monitoring system is configured to obtain measurements of the patient's hematocrit, oxygen saturation and / or blood volume change during the dialysis treatment, wherein the measurements are indicative of a double pool refill rate for the patient during the dialysis treatment; and a massaging system in communication with the dialysis system, wherein the massaging system is configured to provide massaging for the patient during the dialysis treatment, wherein providing massaging for the patient includes running a massage sequence taking into account the measurements obtained by the optical monitoring system.

Provided is a method and a system for noninvasive measurement of blood viscosity based on oxygen saturation and blood flow rate, which may easily and quickly calculate the blood viscosity by using the method and the system for noninvasive measurement of blood viscosity based on oxygen saturation and blood flow rate, thereby enabling immediate obtaining of the blood viscosity.

1. The name of the design product: wireless brain oxygen monitoring headband. 2. The use of the design product: for medical and health services, mainly with non-invasive brain oxygen monitor, which can be used for continuous non-invasive wireless monitoring of local brain oxygen saturation in clinical practice. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

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.

Systems (100), computer-readable media, and methods for detecting a first indicator of a pericardium-related issue based, at least in part, on first heart sounds measurements; detecting a second indicator of the pericardium-related issue based, at least in part, on one or more of the following: posture, restlessness, respiratory activity, cardiac activation signals, oxygen saturation, and second heart sounds measurements; and generating an alert in response to detecting the first indicator and the second indicator.

A system configured to enclose a premature fetus within an extracorporeal environment to promote growth of the fetus and increase viability of the fetus. The system includes a device for measuring oxygen saturation.

The invention provides an in-vehicle oxygen concentration control method, device and equipment, and is applied to the technical field of in-vehicle oxygen concentration control. The method comprises the following steps: acquiring a vibration signal generated in the driving process of a vehicle and an original pulse signal of a driver; and dynamically offsetting the vibration interference component in the original pulse signal based on the vibration signal to obtain a denoised pulse signal of the driver. And determining the blood oxygen saturation degree of the driver according to the pulse signal after noise reduction. According to the oxyhemoglobin saturation and the preset threshold interval, the control instruction of the vehicle-mounted oxygen supply device in the vehicle is generated so as to adjust the in-vehicle oxygen concentration of the vehicle, and the problem that a traditional in-vehicle oxygen concentration control system is prone to being disturbed by vehicle vibration and consequently low in measurement precision can be solved.

The invention relates to the technical field of hemodialysis monitoring, and provides a blood oxygen saturation monitoring method and device for a hemodialysis pipeline based on double optical paths, and the blood oxygen saturation monitoring method comprises the following steps: S1, obtaining the transmitted light intensity I1 red light of red light penetrating through a narrow-diameter section of the hemodialysis pipeline and the transmitted light intensity I1 infrared light of infrared light penetrating through the hemodialysis pipeline; s2, acquiring transmitted light intensity I2 red light of the red light penetrating through the wide-diameter section of the hemodialysis pipeline and transmitted light intensity I2 infrared light of the infrared light penetrating through the hemodialysis pipeline; s3, a data buffer area is constructed, N recent light intensity sampling values are stored in the data buffer area, the arithmetic average value of data in a data set is calculated, and representative narrow-diameter section red light transmission light intensity I1 red light avg (t), narrow-diameter section infrared light transmission light intensity I1 infrared avg (t), wide-diameter section red light transmission light intensity I2 red light avg (t) and wide-diameter section red light transmission light intensity I1 infrared avg (t) at the moment t are obtained; and the oxyhemoglobin saturation SpO2 is calculated. The device has the advantages that in-vitro blood oxygen saturation monitoring is achieved, and accuracy is improved.

The invention relates to a method for determining a substance concentration in a sample comprising a liquid containing particles, in particular oxygen saturation, comprising the following steps: - Obtaining a first perfusion index based on a reflected first component of an incident first light ray with a first wavelength; - Obtaining a second perfusion index based on a reflected second component of an incident second light beam with a second wavelength; - Receiving a reflected third component of an incident third light ray with a third wavelength, wherein the third light ray is in a wavelength range that is less sensitive to oxygen saturation than the first and second light rays; - Adjust at least one of the perfusion indices in response to the third component received; - Determining the oxygen saturation or a change thereof from at least one adjusted perfusion index and the respective other perfusion index.