56 results about "Pulse oximeters" patented technology

The invention discloses a vein blood oxygen saturation real-time measurement system and method based on an LED light source. The method comprises the steps that 1, a pulse driving circuit outputs pulse voltage to drive LEDs with different wavelengths in a dual-wavelength LED light source to flicker alternately; collecting a photoacoustic signal by an ultrasonic transducer; 2, the ultrasonic signal processing platform receives the collected sound signals and carries out subsequent processing; 3, controlling the ultrasonic transducer to transmit an ultrasonic signal to the same measured part, and receiving an echo signal of the ultrasonic transducer; reconstructing an ultrasonic image of the measured part based on the echo signal; step 4, in the obtained ultrasonic image, positioning a vein to be analyzed and an adjacent artery thereof, and positioning the vein in the ultrasonic image; 5, the arterial oxygen saturation value of the whole body is measured through a finger clamping type pulse oximeter, and quantitative calculation of the venous oxygen saturation is achieved; and step 6, carrying out pixel-level fusion on the oxyhemoglobin saturation information and the ultrasonic image, and realizing visualization on the same frame of ultrasonic image.

The invention discloses a multi-sensor monitoring system and method based on time alignment, and belongs to the technical field of multi-sensor monitoring, and the system comprises a sensor collection module which is used for obtaining an electrocardiosignal, a photoelectric volume pulse wave signal, a heart sound signal and a respiratory impedance signal containing a main clock receiving timestamp; the time alignment module is used for performing acquisition time alignment on the electrocardiosignal, the pulse oximeter signal, the heart sound signal and the respiratory impedance signal containing the main clock receiving timestamp to form the electrocardiosignal, the pulse oximeter signal, the heart sound signal and the respiratory impedance signal which are in time alignment; the multi-modal fusion analysis module is used for extracting local morphological features in the electrocardiosignal, the pulse oximeter signal, the heart sound signal and the respiratory impedance signal after time alignment to form a feature map, and extracting dynamic weights between different signals and between different time points / features in the same signal; according to the invention, the interpretability and accuracy of judgment are improved.

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 utility model discloses a finger clip type pulse oximeter, which comprises a panel assembly, an upper shell assembly, a lower shell assembly, an upper finger clip pad, a lower finger clip pad, a light emitter and a receiver, in a storage state, the matching surfaces of the upper shell assembly and the lower shell assembly are close to each other, and the shading part of the panel assembly is arranged in a storage groove; in the using state, after an external finger or a similar finger is inserted between the upper shell assembly and the lower shell assembly, the upper shell assembly and the lower shell assembly are opened, the cavity is compressed, the shading part of the panel assembly is separated from the containing groove, and the upper finger clamping pad, the lower finger clamping pad and the shading parts on the two sides jointly form a containing cavity for containing and shielding the external finger or the similar finger. According to the scheme, light leakage interference can be effectively prevented from influencing a measurement result, the shading part and the panel assembly are integrally formed instead of being additionally arranged in a sleeving mode, the number of parts is small compared with the number of parts, assembly procedures are reduced, and the requirements for the production process and the production cost are reduced to some extent; and the shading part and the accommodating groove of the lower shell assembly can be integrally accommodated in the accommodating state.

This utility model relates to the field of wearable medical device technology, and discloses an adjustable pulse oximeter finger clip that prevents slippage. It includes a lower housing and a detector. A central shaft is rotatably connected to the top center of the lower housing, and an upper housing is rotatably connected to the outside of the central shaft. An airbag is fixedly connected to the front outer side of the lower housing, and a connecting tube is fixedly connected to the inside of the lower housing. A balloon is fixedly connected to the rear side of the lower housing, and a one-way valve is provided at the rear end of the balloon. A spring plate is fixedly connected to the inside of the balloon, and an adjustment component for deflating the airbag is provided at the top of the balloon. In this utility model, the airbag can compress and wrap around the finger, adapting to measurements of different finger sizes, preventing the finger clip from loosening, and improving measurement accuracy. The Velcro closure, with its barbed and textured surfaces, adheres to the finger clip, increasing its stability and preventing slippage.

The utility model relates to the technical field of medical machinery, in particular to a blood oxygen detector which comprises a shell, a mounting cover and an anti-falling fixing mechanism. A partition plate is fixedly mounted in the shell, and a semicircular hole is formed in the partition plate; the shell and the semicircular groove in the mounting cover form a detection port; the fixing mechanism comprises an air bag, an arc-shaped plate and an air pump; an air outlet of the air pump is fixedly connected with a ventilation box, and the ventilation box is communicated with the air bag through a pipeline penetrating through the partition plate; the two arc-shaped plates make contact with each other and form a cylinder shape. According to the anti-slip sleeve, after the anti-slip sleeve is used, the installation shell can be detached, the installation shell drives the upper anti-slip sleeve and one arc-shaped plate to move away, the inner wall of the upper anti-slip sleeve and the inner wall of the lower anti-slip sleeve can be cleaned conveniently, bacterial breeding caused by scurf residues is avoided, and the use safety is improved.

The invention relates to pulse oximeter equipment and a blood oxygen saturation degree detection method and device.The method comprises the steps that red light electric signals, infrared light electric signals and acceleration data corresponding to body movement of a wearing object collected by the pulse oximeter equipment are obtained; extracting light intensity corresponding to the current sampling data point according to the red light electric signal and the infrared light electric signal, and obtaining a body motion interference coefficient corresponding to the current sampling data point according to the acceleration data; performing dynamic compensation on the AC components of the red light electric signal and the infrared light electric signal based on the light intensity and the body motion interference coefficient to obtain a compensated AC component; extracting DC components of the red light electric signal and the infrared light electric signal; and calculating the oxyhemoglobin saturation according to the compensated AC component and DC component. In the whole process, the photoelectric signals are dynamically compensated based on the collected acceleration data and light intensity data, the blood oxygen saturation degree detection precision can be remarkably improved, and high-precision blood oxygen saturation degree detection is achieved.

This invention relates to the field of data monitoring, and more particularly to a data monitoring system for Traditional Chinese Medicine (TCM) pulmonary rehabilitation training. The system includes: a multi-source monitoring data kernel function construction module, used to construct a linear kernel function based on the BODE index of lung function, an RBF kernel function based on TCM syndrome scores obtained from a TCM questionnaire, and a periodic similarity kernel function based on pulse oximeter data; an SVM parameter optimization module, used to optimize SVM parameters using a soft-margin algorithm; a kernel function combination weight optimization module, used to determine the optimal solution of initial weighting coefficients using a grid search algorithm to generate an optimized SVM pulmonary rehabilitation level judgment model; and an SVM training suggestion output module, which generates pulmonary rehabilitation levels and determines the corresponding TCM pulmonary rehabilitation training suggestions displayed to the user by the rehabilitation training data monitoring platform. This invention meets the needs of TCM pulmonary rehabilitation data monitoring and achieves intelligent pulmonary rehabilitation training guidance.

The utility model provides a simulation instrument for testing a pulse oximeter, the simulation instrument comprises a sensor assembly, an ambient light acquisition assembly and a control assembly, the sensor assembly is suitable for stretching into a clamping part, and the sensor assembly comprises a first photoelectric sensor and a first light emitting diode; the first photoelectric sensor is used for converting a first optical signal emitted by the second light-emitting diode into a first electric signal, the first light-emitting diode is used for emitting a third optical signal to the third photoelectric sensor, and the ambient light collection assembly comprises a second photoelectric sensor which is used for collecting ambient light around; and the control assembly comprises a receiving module, an input module, a preprocessing module, a compensation module and an output module. According to the simulator for testing the pulse oximeter, the ambient light acquisition assembly and the compensation module are arranged, so that the interference of ambient light is reduced, and the accuracy and the reliability of a test result are further improved.

The application discloses a wearable system for evaluating postoperative pulmonary complication risk, comprising: a data acquisition module, including a vest, a pulse oximeter and a signal recording box, for collecting physiological signals of an evaluated person during submaximal exercise test; a data processing module connected with the data acquisition module, for processing the physiological signals to obtain characteristic data based on the peak and slope of the physiological signals; a model calculation module connected with the data processing module, for inputting the characteristic data into a model trained by using a stochastic gradient algorithm and including preoperative clinical physiological characteristic data, to calculate a postoperative pulmonary complication incidence rate; and a model evaluation module connected with the model calculation module, for determining whether the evaluated person has postoperative pulmonary complications according to a Melbourne Group Score Scale. The system can accurately predict the probability of pulmonary complications by the cooperation of the modules, and provide precise medical intervention guidance for clinical treatment.

1. Name of the product in this design: Finger Pulse Oximeter. 2. Purpose of this design: To measure human blood oxygen levels. 3. The key design elements of this product are the combination of shape, pattern, and color. 4. The image or photograph that best illustrates the design's key points: a 3D model. 5. The design for which protection is sought includes color.

The present invention relates to a portable pulse oximeter ring with a Bluetooth low energy connection for use in physical exertion conditions and for all skin tones. The ring is structurally configured as a bridge-shaped surrounding body that can be fitted on the human finger and includes three printed circuit boards (PCB) connected to each other by flexible connections, two being peripheral on the sides, with four light emitting diodes (LED) and two photodiodes (PD) facing one another through the finger by way of a transmission oximeter, and a main board integrating the microprocessor with Bluetooth low energy (BLE), the LED and PD controller and other secondary peripherals. These LED, PD, BLE and controller components have specific features for the desired operation, with an algorithm to more reliably calculate heart rate. An optional temperature sensor is mounted on the main PCB in contact with the skin of the finger.

To provide a pulse oximeter capable of measuring oxygen saturation with high accuracy. [Solution] The pulse oximeter includes a red light sensor that detects red light from a subject by irradiating the subject with red light, an infrared light sensor that detects infrared light from a subject by irradiating the subject with infrared light, and a control device that processes the detection signals from the red light sensor and the infrared light sensor. The control device includes an oxygen saturation measurement unit that generates a group of oxygen saturation data indicating the oxygen saturation of the subject based on the detection signals, and an abnormal value detection unit that detects abnormal values ​​in the oxygen saturation data group based on the subject's body movement based on at least one of the ratio of the red light signal intensity to the signal intensity of the amplitude signal of the detection signal of the red light sensor, and the ratio of the infrared light signal intensity to the signal intensity of the amplitude signal of the detection signal of the infrared light sensor.

1. Name of the product in this design: Pulse Oximeter. 2. Purpose of this design: This design is used to detect human blood oxygen and pulse. 3. The key design points of this product are: the shape of the product shown in 1 and 2, and the combination of shape and color of the product shown in 3 and 4. 4. The image or photograph that best illustrates the key design points: Design 1 3D view. 5. The design for which protection is sought includes color. 6. Design 1 is designated as the basic design.

A pulse oximeter includes a saturation measurement unit that measures a blood oxygen saturation of a subject by a red light sensor and an infrared light sensor, a detection indicator calculation unit that calculates a detection indicator, and an abnormal value detection unit that detects an abnormal value of the oxygen saturation based on the detection indicator. The detection indicator calculation unit calculates, as the detection indicator, at least one of a green-red signal ratio that is a ratio between a green light pulse wave signal intensity ratio and a red light pulse wave signal intensity ratio, and a green-infrared signal ratio that is a ratio between the green light pulse wave signal intensity ratio and an infrared light pulse wave signal intensity ratio.

The utility model discloses a pulse oximeter simulation system. The system mainly comprises a microprocessor, an information interaction module, a simulation finger module, a plurality of current-voltage converters, a plurality of digital-to-analog converters, a plurality of signal amplifiers and a plurality of analog switches. The simulation finger module is located between the light-emitting tube and the light receiver, comprises a red light receiver and an infrared light receiver, and is used for receiving light signals emitted by the target oximeter and converting the light signals into current signals. Through a series of converters, the current signals are converted into voltage signals, and the state of the analog switch is controlled according to the received infrared light signals. The information interaction module allows a user to input parameters such as finger thickness, oxyhemoglobin saturation and pulse rate so as to determine a perfusion coefficient, and signal conversion is performed by using a calibration curve. Finally, a simulation signal generated by the system is used for adjusting the brightness and the flicker mode of the red light emitting tube, so that effective simulation of the oximeter is realized. According to the invention, the output signal error caused by the parameter difference is relatively small.

An electronic device that monitors blood pressure in vasculature of an individual is described. This electronic device may perform the operations of: monitoring blood flow of the individual (e.g., using a pulse oximeter); calibrating the blood flow based at least in part on a predefined or predetermined comparison of the blood flow and blood pressure, e.g., in the individual's vasculature; and providing the calibrated blood flow of the individual as a function of time, where the calibrated blood flow indicates at least the blood pressure or a blood-pressure reading for the individual.

A photoplethysmographic sensor has a first light source, a second light source, an optical filter positioned within the path of the light emitted by the first light source and adapted to pass light within the spectral bandwidth of the first light source, an output aperture positioned to allow light passing through the optical filter and light emitted by the second light source to pass through, and a photodetector configured to detect light from the first and second light sources and to convert the detected light signal into an electronic signal. The first light source, the optical filter, and the output aperture configured to prevent light output by the first light source from passing through the output aperture without first passing through the optical filter.

1. Name of the product in this design: Pulse Oximeter. 2. Purpose of this design: A pulse oximeter for detecting blood oxygen levels in the human body. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

1. Name of the product in this design: Wrist Pulse Oximeter. 2. Purpose of this design: To measure and display physiological parameters such as blood oxygen. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

This invention discloses an intelligent blood glucose meter, belonging to the field of blood glucose meter technology. It includes a base, on which a detection component is mounted. The detection component includes a pulse oximeter body mounted on top of the base, with two display screens on the pulse oximeter body. A support frame is positioned between the base and the pulse oximeter body, and two connecting frames, each located at one end of a corresponding display screen, are mounted on the support frame. Limiting shells are embedded in the connecting frames. This invention generates a tiny current by dripping blood onto a test strip between an extension tube and a blood glucose sensor. The current intensity corresponds to the blood glucose value. The current intensity is measured by the electrodes of the blood glucose sensor, and the current intensity is directly proportional to the glucose concentration. This current is transmitted through the pulse oximeter body and elastic pads at the ends of the pulse oximeter bodies, allowing for analysis of the user's blood glucose levels under different conditions during blood glucose testing. This facilitates error prediction and correction, improving the accuracy of the test.

An adhesive is disclosed that absorbs light within the range of 400-1400nm and that has a moisture vapor transmission rate (MVTR) of about, or greater than, 200 g / m2 / day. The adhesive may be employed in a tape that may be adhered to a patient's body part to direct stray light out of the body part and thereby improve accuracy and efficacy of medical equipment such as pulse oximeters.

The embodiment of the invention provides a heart rate monitoring method and device, equipment and a medium. The method comprises the following steps: acquiring a real-time physiological signal of a user, wherein the real-time physiological signal comprises an acceleration signal and a photoelectric volume pulse wave signal; performing first filtering processing on the photoelectric volume pulse wave signal based on the acceleration signal to obtain the photoelectric volume pulse wave signal after the first filtering processing; determining a target band-pass filter of the pulse oximeter signal after the first filtering processing; and performing second filtering processing on the photoelectric volume pulse wave signal after the first filtering processing based on the target band-pass filter, and determining a heart rate value of the user based on the photoelectric volume pulse wave signal after the second filtering processing. According to the method, the robustness and accuracy of heart rate measurement in dynamic motion and complex noise environments are remarkably improved.

A healthcare device for asthmatic patients that can help in reducing and avoiding risk factors that can trigger one or more symptoms of asthma. The healthcare device includes an infrared sensor, a pulse oximeter sensor, a UV sensor, an atmospheric sensor, and an air quality sensor for measuring values of different risk factors including ambient temperature, body temperature, blood oxygen saturation level, heart rate, intensity of ultraviolet radiations, humidity level, altitude, CO2 levels, and total volatile organic compounds (TVOCs).

The utility model discloses a kind of finger pulse oxygen clamp finger protective sleeve, and its technical solution main points include protective sleeve body, protective sleeve body is sleeved on user finger, protective sleeve body includes isolation compression resistance layer, buffer layer and skin-friendly layer in turn from outside to inside, the two sides of protective sleeve body are respectively provided with first detection window and second detection window, first detection window and second detection window are all communicated with the inside of protective sleeve body, first detection window and second detection window are used for part of user finger to expose;The utility model is set by the multilayer cooperation of isolation compression resistance layer, buffer layer and skin-friendly layer, can slow down the oppression of finger pulse oxygen clamp to patient finger, avoid that user finger is caused harm by strong compression, improve the protection effect to user finger.

An electronic device that evaluates a cardiac pumping function is described. This electronic device may perform the operations of: monitoring an instance of a pulse oximeter waveform of an individual; computing metric information associated with the instance of the pulse oximeter waveform; and calculating a rate of rise or fall of the instance of the pulse oximeter waveform as a function of time. In some embodiments, the electronic device may provide a recommended remedial action based at least in part on the calculated rate or rise of fall in the instance of the pulse oximeter waveform.

This utility model provides a pulse oximeter device, including: a probe assembly and a strap assembly; the probe assembly includes a body, an extension, and a detection element, the extension is connected to the end of the body, and the extension can deform to form a receiving space with the body for accommodating the measured part; the strap hole of the probe assembly penetrates the inner and outer surfaces of the extension in the thickness direction or penetrates the inner and outer surfaces of the body in the thickness direction; the size of the first strap of the strap assembly is smaller than the size of the second strap, and the strap hole allows the first strap to pass through but not the second strap; when the strap assembly is bound to the probe assembly, the first strap passes through the strap hole, and the first hook layer is detachably connected to the nap of the second strap, the side of the first strap facing the receiving space is blocked by the body or the extension and isolated from the receiving space, and the second strap is wrapped around the outer surfaces of the body and the extension.

The invention discloses a pulse oximeter simulation system. The system mainly comprises a microprocessor, an information interaction module, a simulation finger module, a plurality of current-voltage converters, a plurality of digital-to-analog converters, a plurality of signal amplifiers and a plurality of analog switches. The simulation finger module is located between the light-emitting tube and the light receiver, comprises a red light receiver and an infrared light receiver, and is used for receiving light signals emitted by the target oximeter and converting the light signals into current signals. Through a series of converters, the current signals are converted into voltage signals, and the state of the analog switch is controlled according to the received infrared light signals. The information interaction module allows a user to input parameters such as finger thickness, oxyhemoglobin saturation and pulse rate so as to determine a perfusion coefficient, and signal conversion is performed by using a calibration curve. Finally, a simulation signal generated by the system is used for adjusting the brightness and the flicker mode of the red light emitting tube, so that effective simulation of the oximeter is realized. According to the invention, the output signal error caused by the parameter difference is relatively small.

This utility model discloses a probe for a pulse oximeter, relating to the field of probes. It includes a rubber adhesive with a rough edge on one side and a barbed edge on the other. A sensor is housed inside the rubber adhesive, and a wire is fixedly mounted on one side of the sensor. Rotating protrusions are mounted on both sides of the wire, and a mounting block is movably mounted within each rotating protrusion. One end of the mounting block is fitted with a rubber sleeve. This utility model solves the problem of poor performance in existing pulse oximeter probes. By incorporating a rubber adhesive, with adhesive at one end of the side where the sensor light-emitting block and sensor receiving block are located, and a rough edge on the other end, and a barbed edge on the other side, the protective film on the adhesive side can be removed when the probe needs to be installed on the patient's fingertip.

An adaptive gas mixture controller system. A pulse oximeter interface receives pulse oximeter data. A gas blender interface communicates with a separate externally connected gas blender. A processor receives pulse oximeter data via the pulse oximeter interface and outputs data to the gas blender interface for adaptive feedback control of the gas mixture based upon the SpO2 level signals from the pulse oximeter interface. When the processor receives data from the gas blender indicating that the gas mixture has been manually changed, enters a manual override mode and halts sending adaptive feedback control signals to the gas blender. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.