111 results about "Blood oxygen concentration" patented technology

A method for removing motion artifacts from devices for sensing bodily parameters and apparatus and system for effecting same. The method includes analyzing segments of measured data representing bodily parameters and possibly noise from motion artifacts. Each segment of measured data may correspond to a single light signal transmitted and detected after transmission or reflection through bodily tissue. Each data segment is frequency analyzed to determine up to three candidate peaks for further analysis. Each of the up to three candidate frequencies may be filtered and various parameters associated with each of the up to three candidate frequencies are calculated. The best frequency, if one exists, is determined by arbitrating the candidate frequencies using the calculated parameters according to predefined criteria. If a best frequency is found, a pulse rate and SPO₂ may be output. If a best frequency is not found, other, conventional techniques for calculating pulse rate and SpO₂ may be used. The above method may be applied to red and infrared pulse oximetry signals prior to calculating pulse rate and/or pulsatile blood oxygen concentration. Apparatus and systems disclosed are configured to perform methods disclosed according to the invention.

A physical activity assistance apparatus includes a blood oxygen concentration measurement section (biological information detection section and blood oxygen concentration calculation section) that measures a user's blood oxygen concentration and a breathing instruction section that instructs the user to practice a predetermined breathing method when the blood oxygen concentration is lower than or equal to a first threshold. The thus configured physical activity assistance apparatus can appropriately support the user's physical activity.

The invention belongs to the field of human body motion sensing and monitoring, and particularly relates to portable motion monitoring and detecting equipment and a motion monitoring and detecting method. The motion monitoring and detecting method includes: selecting two red rays or infrared rays different in wavelength as incident rays, and enabling the incident rays to be vertically irradiated into fingers, wherein one of the incident rays is an infrared ray of 805nm in wavelength; adopting a reflective mode to measure pulse waves and blood oxygen concentration; calculating to acquire arterial blood oxygen saturation by respectively measuring IAC and IDC of reflection light signals of the red rays or the infrared rays according to a formula. Compared with transmission-type measuring methods, the motion monitoring and detecting method has the advantages that baseline drift caused by color scattering disturbance and motion disturbance of light is reduced, and accuracy and practicability are greatly improved when compared with those of conventional transmission-type pulse measuring.

The invention provides a share-based virtual reality body-building riding system with a constitutional examination device. The share-based virtual reality body-building riding system comprises a spinning, a VR device and the constitutional examination device, wherein an electronic lock is arranged on the spinning, a speed sensor is arranged beside a wheel, a pressure sensor is arranged on a handlebar, and the constitutional examination device comprises a bioelectricity sensor and a blood oxygen concentration sensor. The invention also provides a share-based virtual reality body-building ridingmethod with the constitutional examination device. The body-building riding system is shared, and a user can use the system only though on-time payment after registration and login without separate purchase. In addition, after the user experience a VR scene during riding exercises and see his/her heart rate and blood oxygen changes to perform a certain exercise amount, and the system can also score the constitution of the user according to acquired data, so that the user better knows his/her constitution.

The invention relates to a synchronous photodynamic therapy device. The synchronous photodynamic therapy device can be used for synchronously controlling light illuminating power of a therapy light source according to the blood oxygen concentration in a diseased area of a patient under the control of a computer and can also be used for adjusting time and space distribution parameters of the light illuminating power in a therapy area through a spatial light modulator, or adjusting the light illuminating power of the therapy light source in a light source modulation method through cooperation of the computer and the spatial light modulator. In addition, according to the synchronous photodynamic therapy device, multiple spectrum structures can be adopted in the therapy light source, blood oxygen spatial distribution parameters of a treated part can be obtained through structured light illumination, then the space and time distribution of therapy light in the therapy area can be controlled, optimal matching of photosensitizer, light and oxygen can be achieved, and harmful effects of the photothermal effect and photochemical toxicity of the photosensitizer on peripheral tissues can be reduced.

A medical device includes a temperature sensor configured to deliver a temperature signal and an optical sensor configured to deliver an optical signal. The medical device also includes a microcontroller configured to receive the temperature signal and the optical signal. The microcontroller is configured to calculate, in real-time, a body temperature, a pulse rate, a respiratory rate, and a blood oxygen concentration based on the received temperature signal and the received optical signal. The medical device also includes a display configured to display the body temperature, the pulse rate, the respiratory rate, and the blood oxygen concentration of a patient.

The invention discloses a flexible wearable sleep physiological parameter detection method and device. Conventional sleep respiration detection is not combined with heart rate and blood oxygen. The flexible wearable sleep physiological parameter detection device comprises a heart rate and blood oxygen detection module, a temperature and moisture detection module and assorted mobile phone terminal software, wherein the heart rate and blood oxygen detection module and the temperature and moisture detection module can support bluetooth 5.0; and the mobile phone terminal software is used for receiving the temperature, the moisture, the reflection infrared light data and the reflection infrared light data, detecting the respiration situation, performing filtering on the reflection infrared light data, performing peak seeking, performing calculation to obtain the heart rate value, performing FFT alternation on the reflection infrared light data and the reflection infrared light data, and obtaining the blood oxygen concentration value combined with a Beer-Lambert Model. The flexible wearable sleep physiological parameter detection method and device disclosed by the invention also support a manner that the data is stored, and the CSV formatted file is transmitted out for secondary research. The flexible wearable sleep physiological parameter detection device disclosed by the invention is integrated on a flexible circuit board, and is stuck to the skin below the nose, so that the wearing is convenient; and the flexible wearable sleep physiological parameter detection device has very low active RF and MCU electric current, is low in power dissipation, and is suitable for long-time monitoring.

The invention relates to a multifunctional sensing device based on an internet of things air conditioner, and the multifunctional sensing device comprises an upper shell, a lower shell, a watchband which is fixed on two ends of the lower shell and a measuring assembly which is arranged in a cavity formed by the upper shell and the lower shell; the measuring assembly comprises a display screen, a control main board and a pulse and blood oxygen concentration collection device, wherein the display screen is arranged inside the cavity; the control main board is arranged below the display screen; and the pulse and oxygen concentration collection device is arranged below the control main board and used for collecting body temperature, pulse and blood oxygen concentration of the human body. The multifunctional sensing device simultaneously uploads the collected information such as ambient temperature, ambient humidity, body temperature, pulse and blood oxygen concentration to the internet of things air conditioner, so that the internet of things air conditioner works under the condition which is favorable for the health of the human body; and the movement information and energy consumption of the human body can be collected, so that a user can be encouraged to positively stick movement so as to obtain the health body. The multifunctional sensing device has a falling warning function of a human body movement sensor, so that the falling old people or the disabled people can be helped in time.

A mouse for measuring consistency of blood oxygen includes a mouse case, on which two transmitters, a transmitting circuit, a receiver, a receiving feedback circuit, a filtrate amplifying circuit, and a calculating unit are disposed. The transmitting circuit serves to control the transmitters to alternately radiate a red glow and an infrared light to the receiver. The receiving feedback circuit applies to convert them into an electrical signal, and the filtrate amplifying circuit obviates any promiscuous frequency existing in the electrical signal and amplifies the electrical signal. The calculating unit accordingly computes the signal to obtain the value of consistency of blood oxygen, which would thence be outputted from a communication interface for informing users about the consistency of blood oxygen, so as to prevent the discomfort suffered by the occurrence of oxygen deficiency in blood.

A method for measuring blood pressure by use of oximeter and electrocardiograph includes such steps as using oximeter to measure the waveform of continuously varied blood oxygen period, using electrocardiograph to measure the pulse time segments of systolic pressure and diastolic pressure, using microprocessor to calculate out the sectional area relative to said waveform and time segment, and using a stored equation to calculate out the values of systolic pressure and diastolic pressure. Its apparatus is also disclosed.

Disclosed are a device of a sensing circuit which is embedded in a watch strap and used for detecting human body vital signs and a method. The method includes that the watch strap with the embedded sensing circuit and for detecting the human body vital signs is worn on an arm; human body pulses, human body blood oxygen concentration, human body surface humidity, human body temperature and human body movement conditions are detected through the embedded sensing circuit; detected human body pulse parameter signals, human body blood oxygen concentration parameter signals, human body surface humidity parameter signals, human body temperature parameter signals and human body movement condition parameter signals are transmitted to a microprocessor in the current form; processing and analysis are performed on the human body pulse parameter signals, the human body blood oxygen concentration parameter signals, the human body surface humidity parameter signals, the human body temperature parameter signals and the human body movement condition parameter signals through the microprocessor and obtained vital sign data through the processing and analysis are transmitted to personal terminal equipment such as a smartphone or a computer through a wireless communication interface or a serial communication interface through the microprocessor. According to the watch strap with the embedded sensing circuit and for detecting the human body vital signs and the detection method, the sensing circuit for detecting the vital signs is embedded in the existing general watch strap, so that a user can conveniently detect self-pulses, blood oxygen concentration, surface humidity, temperature and human body movement conditions.

The invention discloses a driver vitality sign detection device and method. The device is composed of a signal collection unit, a front-end signal filtering amplification unit, a central processing unit DSP arithmetic unit and a rear-end alarm unit, wherein the signal collection unit is installed at the frequent-touch position of a steering wheel and is a touch miniature photoelectric measuring instrument. Sign feedback signals of a driver are collected for rear signal processing and operation to obtain the accurate heart rate and blood oxygen concentration of the driver. The physical state of the driver is judged according to a preset threshold value or limit, and an alarm signal is given correspondingly. According to the driver vitality sign detection device and method, a packaged touch sensor is customized according to the principle that the infrared absorption and red light absorption of human body blood oxygen content are different, detection of the human body vitality sign of the driver is simplified, discomfort of a traditional testing method is eliminated, the physical state of the driver can be continuously reflected in time, the accurate and effective alarm remind can be provided, and life safety of persons inside an automobile is ensured.

The invention discloses a plastic optical fiber sensing system for simultaneously measuring blood sugar concentration and blood oxygen concentration, comprising a light source, a low-pass optical filter, a sensing pool, a sensing head, a high-pass optical filter and a photoelectric detector. The plastic optical fiber sensing system is characterized in that the head of the sensing head is provided with a U-shaped optical fiber of which the sheath is stripped; sol-gel containing fluorescence indicator o-phenanthroline ruthenium and glucose oxidase is coated on the outer wall of the U-shaped optical fiber; the sensing head is prepared in such a way that light emitted by the light source is coupled by the low-pass optical filter to enter a plastic optical fiber; the phenanthroline ruthenium on the sensing head emits the fluorescence of 574 nm; after the fluorescence passes through the high-pass optical filter, the fluorescence strength is measured by the photoelectric detector to obtain the blood oxygen concentration and the blood sugar concentration; when the blood sugar concentration and the blood oxygen concentration are simultaneously measured, the invention has high sensitivity, simple structure and low cost, is difficult to interfere by an external environment and has the minimal measurement value of blood sugar, which reaches 1 mg/L, and the minimal measurement value of blood oxygen, which reaches 0.1 mg/L.

The invention discloses a multifunctional respiratory therapy system for hospital and family environments. The multifunctional respiratory therapy system comprises a control unit, a ventilation unit and an oxygen generation unit; due to self oxygen generation through an oxygen supply unit, the problem that the existing respiratory therapy equipment completely depends on an external oxygen source is solved; low/high flow oxygen therapy, intelligent oxygen supply control and non-invasive positive-pressure mechanical ventilation therapy functions are integrated into a whole; corresponding therapeutic working modes can be started according to different requirements of different stages of respiratory diseases of patients; and therefore, seamless switching and multiple purposes by one machine invarious therapeutic schemes can be realized. According to the multifunctional respiratory therapy system and method for hospital and family environments in the invention, closed loop control of bloodoxygen concentration, respiratory synchronized trigger pulse oxygen supply or respiratory synchronized on-demand oxygen supply technologies are adopted; oxygen supply is only carried out in the inspiratory phase of a patient; stimulation of an airflow on the upper respiratory tract when continuous flow oxygen therapy is carried out is reduced; the comfort and the compliance of the patient are improved; and simultaneously, oxygen resource waste is reduced to the most extent.

The invention discloses a photo-thermal and photo-power treatment device which comprises a closed treatment chamber as well as a laser, a heating plate, an optical system, a blood oxygen instrument, a thermal imaging system and an air purifier packaged in the treatment chamber, wherein the laser emits laser to provide a light source to a treated body through the optical system, the optical system is used for controlling the spot size of the laser to control the power density of the light source, the heating plate is used for heating the treatment chamber to maintain the temperature of the treatment body, the blood oxygen instrument is used for monitoring the blood oxygen concentration change of the treatment body, the thermal imaging system is used for detecting the local or overall temperature of the treatment body, the air purifier is used for purifying air in the treatment chamber, and the treatment chamber is further provided with a ventilating hole for inputting oxygen or anesthetics to the treatment chamber. The device disclosed by the invention combines photo-thermal and photo-power treatments, and can realize photo-thermal and/or photo-power treatment for small animals or cells in a culture plate.

The invention discloses an intelligent oxygen generator. The intelligent oxygen generator comprises a main control panel, a blood oxygen detection module and an oil-free compressor, and the blood oxygen detection module and the oil-free compressor are connected with the main control panel respectively; the blood oxygen detection module is used for detecting the blood oxygen concentration of a target user, generating electric signals corresponding to the detected blood oxygen concentration, and sending the electric signals to the main control panel; the main control panel is used for generatingrotation speed adjustment signals corresponding to the electric signals; the oil-free compressor is used for adjusting the rotation speed of a motor according to the rotation speed adjustment signals. According to the intelligent oxygen generator, the rotation speed of the motor of the oil-free compressor in the oxygen generator is adjusted according to the detected blood oxygen concentration ofthe target user, accordingly, the oxygen outlet amount is adjusted, and the aims that energy is saved and using noise of the oxygen generator is lowered are achieved.

The invention discloses a monitoring device and a monitoring method for remote detection of human vital signs. The device comprises a main control unit, wherein the main control unit is connected to an electrocardiogram and heart rate information processing unit, a blood pressure and pulse information processing unit, a blood oxygen concentration and pulse rate information processing unit, a body temperature information acquisition unit, a respiratory information identifying unit, a Bluetooth/WIFI signal transmitting and receiving unit and a GPS positioning and 2G/3G/4G remote communication unit. The monitoring device provided by the invention has the advantages of being simple in structure, outstanding and sensitive in performances and long in service life, regardless of regional and spatial limitation, the human vital sign multi-parameter monitoring equipment, which is applicable to an inpatient department of a hospital, is placed on the body of a discharged patient as a wearable product, so that doctors can follow up postoperative or medication effects in real time; and meanwhile, in the case that vital sign parameters of a monitored object become worse rapidly, an illness state can be timely mastered or a warning (one-touch calling and positioning) can be transmitted timely, so that the monitored object can be rescued timely and effectively to the greatest extent.

The invention discloses a medical breathing machine in an air duct positive-pressure high-frequency ventilating mode. The medical breathing machine adopts an air duct positive-pressure ventilating mode, a high-frequency pulse pressure wave with adjustable amplitude, frequency and duration is increased in the pressure level of an air duct positive-pressure ventilating mode, and the ventilating modes can be divided into at least seven types, namely single-level positive-pressure high-frequency ventilation, double-level inspiration phase high-frequency ventilation, double-level expiration phase high-frequency ventilation, double-level expiration and inspiration two-phase high-frequency ventilation, proportional ventilation inspiration phase high-frequency ventilation, proportional ventilation expiration phase high-frequency ventilation, and proportional ventilation inspiration phase and expiration phase high-frequency ventilation. By superposing vibration amplitude, vibration frequency and vibration time duration on different treatment pressures in different breathing sections to generate the high-frequency ventilating pressure of the air duct, the smoothness of the air duct and the increase of the pulmonary ventilation in ventilation treatment are achieved, and the blood oxygen concentration and the carbon dioxide concentration are adjusted.

The invention discloses a multifunctional inhaled general anesthesia device for anesthesia department, wherein the multifunctional inhaled general anesthesia device for anesthesia department includesan anesthesia respirator, an anesthesia mask, an exhaust gas recovery device, an oral cavity protection intubation device and a multi-parameter monitor. The anesthesia respirator includes a medicinalliquid chamber, an atomizer, an oxygen supply device, a medicine supply tube and a respirating tube. The anesthesia mask includes an inner mask and an outer mask which is sealedly connected with the exterior of the inner mask, and the outer mask is connected with the exhaust gas recovery device through an exhaust gas tube; the exhaust gas recovery device includes a negative pressure pump and an absorption chamber; the oral cavity protection intubation device includes an oral cavity protection fixator; the middle part of the oral cavity protection fixator is provided with an adjustable gas tubesupport ring for the respiratory tube to pass through and fixing the respiratory tube; the multi-parameter monitor is used for real-time monitoring of the heart rate, blood pressure, body temperatureand blood oxygen concentration of a patient. In a word, the multifunctional inhaled general anesthesia device for anesthesia department has the advantages of novel structure, convenient use, safety,high efficiency and the like.

The invention provides a headband used for virtual reality glasses. The headband comprises a headband structure and a headband circuit. The headband structure comprises a circular protection pad, a long band which is transversely arranged, a short band which is transversely arranged, and a vertical band which is vertically arranged. The headband circuit comprises brain electric signal test electrodes, a humiture module, a vibration module, a PPG sensor, a pressure sensor, a lithium battery, a main controller, a processing circuit and a bluetooth module. The headband used for virtual reality glasses is simple in structure, and can accurately measure physiological parameters such as brain electric signals, body temperature, blood oxygen concentration, pulses and nose-bridge bearing pressure.

The invention provides a tumor imaging system based on near-infrared spectrum blood oxygen concentration measurement and an experiment detection method of the system. The problems that traditional tumor detection equipment is heavy, expensive and high in diagnosis cost are mainly solved. The system comprises a main control part, and the main control part comprises a control kernel STM32F103 which is respectively connected with a light signal generation module, a data storage and communication interface module, and a signal conditioning and analog-digital conversion module, wherein the data storage and communication interface module comprises an SD card, a USB communicating with an upper computer, and a serial interface; the signal conditioning and analog-digital conversion module comprises a data amplifying and filtering part and an analog-digital conversion part and is responsible for signal collection and preprocessing. A probe part comprises the light signal generation module and a light signal receiving module. The system has the advantages of being free of radiation, low in manufacturing cost, portable, easy to operate, high in recognition rate, capable of achieving imaging and the like.

The invention relates to a method for monitoring physiological parameters of the human body. The method comprises the following steps that 1, the blood pressure, blood oxygen concentration, heart rateand body temperature parameters of the human body and the air pressure, oxygen concentration and temperature parameters of the environment are acquired; 2, according to environment parameters and human body parameters, the health condition of the human body is judged; 3, an alarm is given, and meanwhile the alarm is sent to an ad-hoc network through an ad-hoc network module; 4, when an accident happens to member nodes, an aid information request is sent to a nearby node, and aid is provided; 5, if the member nodes can be in communication with the ad-hoc network, the member nodes access the network and share monitoring of the physiological parameters of the human body, and it is guaranteed that treatment is conducted in time when team members are in an abnormal physical state.

The invention relates to a method for combining physiological monitoring with vehicle control. The method comprises the following steps of: developing a vehicle control unit (VCU) control logic; Whenphysiological phenomena of a driver are abnormal (emotional hyperactivity, unclear consciousness, etc.) and other critical conditions, the VCU intervenes in vehicle control and monitors physiologicalsignals including electrocardiogram, blood pressure, pulse, blood oxygen concentration, body temperature and respiratory waves, and threshold values of different degrees and corresponding warnings areprovided for the physiological signals.

The invention discloses a fabric tactile sensation quantitative evaluation and recognition system based on a multi-mode brain-computer interface, and relates to the technical field of fabric evaluation. The system comprises an electroencephalogram collecting cap, a near-infrared brain function imager, a sample table, a processing module and a display module. The invention discloses a fabric tactile sensation quantitative evaluation and recognition system based on the multi-mode brain-computer interface, by which the touch sensation texture electroencephalogram signals and the blood oxygen concentration when a human body touches the fabric can be acquired in real time; the processing module is used for analyzing and extracting characteristic parameters and obtaining the brain activation degree, the characteristic parameters and the brain activation degree are combined, the quantitative evaluation of touch sensation such as fabric comfort and smoothness is achieved, and the recognition of the fabric is completed by comparing and classifying the touch sensation with electroencephalogram characteristic parameters of different fabrics. The evaluation and recognition system can reflect the real tactile sensation reflection of the brain of the human body, objectively achieves the quantitative evaluation of the tactile sensation of the fabric by people, improves the accuracy and objectivity of evaluation, and reduces the number of processing channels.

The present invention discloses a consciousness detection device for multi-sensory brain-body joint stimulations. The consciousness detection device comprises the following steps: constructing a non-invasive auditory and somatosensory joint stimulation normal form matched with a user consciousness function; collecting electroencephalogram and near-infrared brain blood oxygen data, and extracting characteristic responses of the brain to external consciousness related brain-body joint stimulation information; and conducting fusion analysis and extraction of electroencephalogram and cerebral blood oxygen of neurophysiological information and thus constructing a BCI system for micro-consciousness detection. The consciousness detection device conducts intensive induction of consciousness function responses of the brain, extracts electroencephalogram physiological and blood-oxygen multi-dimensional characteristics: event-related potential (ERP), steady-state somatosensory evoked potential (SSSEP) and blood oxygen concentration change, realizes a brain consciousness-oriented detection application, can be popularized to the fields of neuropsychology, life science and the like, and obtainsconsiderable social benefits and economic benefits.

The invention discloses an intelligent Bluetooth rope skipping device. The device comprises a handle, wherein a single chip microcomputer, a battery, a heart rate and blood oxygen sensor, a three-axisacceleration sensor and an electric shock circuit are arranged in the handle, and the heart rate and blood oxygen sensor is used for monitoring heart rate and blood oxygen concentration through a pressed thumb; the three-axis acceleration sensor is used for measuring rope skipping frequency and rope skipping times; and the single chip microcomputer is used for comparing the current heart rate with a maximum heart rate value, a first heart rate value and a second heart rate value, and prompting to accelerate rope skipping frequency when the current heart rate is smaller than or equal to the first heart rate value; prompting to maintain the rope skipping frequency when the current heart rate is larger than the first heart rate value; prompting to reduce the rope skipping frequency when thecurrent heart rate is larger than the second heart rate value; prompting to reduce the rope skipping frequency when the rope skipping frequency approaches the set rope skipping frequency; and promoting to stop rope skipping through the electric shock circuit when the rope skipping times are larger than the set rope skipping times or the blood oxygen concentration is lower than 90%. The invention can carry out exercise planning according to personal physical ability, and is beneficial to improving exercise effect. The intelligent rope skipping device disclosed by the invention ca perform motionplanning according to the personal physical ability, and the exercise effect is favorably improved.