132results about "Diagnostics using spectroscopy" patented technology

The present invention relates to a method for detecting and removing a motion artifact of a functional near-infrared spectroscopy signal. Disclosed are a method and a device for detecting and removing a motion artifact of a near-infrared spectroscopy signal in real time on the basis of an artificial neural network model, the method comprising: a conversion step of converting time series data of functional near-infrared spectroscopy signals measured through a plurality of channels from a target into image data; a detection step of detecting whether noise is present in the converted image data using a pretrained detection model; and a removal step of removing noise from image data where noise has been detected using a pretrained noise removal model.

A system and method for determining an optimal clinical outcome, comprising receiving images of a skin tissue of a patient from an image capturing device; analyzing the one or more images of the skin tissue; and determining skin characteristics and physiological factors of the skin tissue based on the one or more images analyzed. The system and method further analyzing the determined skin characteristics and physiological factors of the skin tissue; determining treatment parameters based on the determined skin characteristics and physiological factors analyzed; generating skin response predictor images of predicted treatment outcomes based on a combination of the one or more images of the skin tissue and treatment parameters; scoring the skin response predictor images based on safety and predetermined criterion of efficacy; and displaying one or more treatment parameters based on the scoring of the skin response predictor images.

The application relates to the technical field of intelligent interaction, in particular to an interaction system based on emotion recognition, which comprises the following steps: collecting multi-modal sensing data and environmental context of a user; when a first situation is matched, constructing a first situation feature by using each single-dimension feature deviation and corresponding coupling feature deviation calculated from the current multi-modal sensing data of the user; when the first situation is not matched, constructing a second situation feature by using each single-dimension feature deviation calculated from the current multi-modal sensing data of the user; an emotion risk index calculation module is used for fusing the first situation feature or the second situation feature according to a pre-trained fusion model to obtain an emotion risk index; and an interaction module is used for triggering an interaction strategy of a corresponding level according to the relationship between the emotion risk index and a latest emotion risk threshold. In the emotion recognition process, the situation category in which the user is currently located is fused, and the accuracy of emotion recognition is greatly improved.

In one embodiment, an apparatus includes a needle that includes a substantially cylindrical shaft and a lumen, which includes a hollow space located within the shaft. The shaft includes a tip located at an end of the shaft, where the tip includes an opening. The apparatus also includes an optical fiber that includes an end face. The end face and at least a portion of the optical fiber are located within the lumen. The optical fiber is configured to transmit a pump-Stokes beam of light along the optical fiber toward the tip of the needle and to the end face, where the pump-Stokes beam is emitted from the end face and directed to a sample. The apparatus further includes a catheter that includes a catheter connector and a catheter tube having a substantially cylindrical shape, where the catheter tube surrounds at least a portion of the needle shaft.

The application discloses an ultra-scan data acquisition and distribution system and method, wherein the ultra-scan data acquisition and distribution system is electrically connected with a host computer through a collection module, user quantity data and execution channel quantity data are acquired through a user module, and according to actual use, a plurality of collection modules can be cascaded with each other through a cascade unit, and a distribution module is used for distributing the same number of collection units to each user according to the user quantity data and the execution channel quantity data, and driving a plurality of collection units to execute ultra-scan one by one, compared with a traditional ultra-scan mode, a plurality of collection modules are cascaded according to the user quantity and the execution channel quantity data to increase the collection units, and then the corresponding number of collection units can be distributed to the users, and the flexibility of configuration is effectively improved.

In one embodiment, an apparatus includes a needle that includes a substantially cylindrical shaft and a lumen. The lumen includes a hollow space located within the shaft, and the shaft includes a tip located at an end of the shaft. The apparatus also includes an optical fiber that includes an end face, where the end face and at least a portion of the optical fiber are located within the lumen. The optical fiber is configured to transmit a pump-Stokes beam of light along the optical fiber toward the tip of the needle and to the end face, where the pump-Stokes beam is emitted from the end face and directed to a sample located in the lumen. The pump-Stokes beam is configured to produce a Raman signal by coherent Raman scattering of the pump-Stokes beam while propagating through the sample.

A method is disclosed comprising providing a biological sample on a swab, directing a spray of charged droplets onto a surface of the swab in order to generate a plurality of analyte ions, and analysing the analyte ions.

A system is provided for classifying tissue of a subject to provide therapy. The system includes a catheter insertable in a lumen of the subject, where the catheter includes a catheter body, at least one needle extendable from the catheter body, and configured to enable delivery of the therapy to the subject, and at least one energy delivery device configured to transmit electromagnetic energy through tissue at a distal end of the at least one energy delivery device, where the at least one energy delivery device is positioned on a distal end of the at least one needle; and a spectral signal analyzer configured to measure a response of the tissue to different frequencies of the electromagnetic energy at the distal end of the at least one energy delivery device, wherein the measured response indicates tissue classification at the distal end of the at least one energy delivery device.

The present invention relates to a system and method of skin detection of a human subject using a textile product. The textile product (10, 31, 43) is made from or comprising textile including near-infrared, NIR, absorbing pigments. It supports and / or partially covers the human subject while skin detection and / or detection / monitoring vital signs of the human subject is carried out. A increased contrast between the textile product and skin in the NIR wavelength range is thus achieved.

The application provides a neurovascular coupling imaging system, method, device and storage medium, which comprises an image collector, a microscope frame arranged in the light inlet direction of the image collector, a visible light system for emitting visible light to a sample to be collected after the visible light is reflected by a beam splitter in the microscope frame, a near-infrared light system for emitting near-infrared light to the sample to be collected after the near-infrared light is reflected by another beam splitter in the microscope frame, and a trigger device for switching the frequency of the time-sharing emission of each light source in the visible light system and the near-infrared light system based on the collection frequency of the image collector. The application can integrate different visible light or near-infrared laser light sources in the light path to be collected, is compatible with various imaging requirements such as visible light for imaging of nerve cell activity and near-infrared light speckle imaging for non-invasive blood flow imaging, ensures that there is no time difference between image collection and light source switching and no time resolution is lost, and facilitates subsequent storage and calculation of data.

A method and apparatus for changing a person's brain state from an initial brain state to a target brain state are described. The method includes receiving information characterizing the initial brain state, where the information includes the structural configuration and functional architecture of the brain; estimating the likelihood that the brain will change from the initial brain state to the target brain state based at least in part on the received information; determining a non-invasive brain stimulation protocol based at least in part on the received information and the estimated likelihood that the brain will change from the initial brain state to the target brain state; and controlling at least one non-invasive brain stimulation device to stimulate the brain according to the non-invasive brain stimulation protocol. The method also includes using the brain information to inform the design of a computationally general artificial intelligence agent.

Described herein are methods and apparatuses for characterizing a material at a distal end of an aspiration catheter using one or more sensors. The methods and apparatuses described herein may include a plurality of sensing electrodes at a distal end region of the apparatus, and a controller configured to sense contact and / or close proximity to the sensing electrodes. These methods and apparatuses may determine or detect vessel size. These methods and apparatuses may include distal contrast ports for applying contrast material distal to the aspiration catheter. In some examples these apparatuses include one or more reference electrodes near the sensing electrodes that may enhance detection of material (e.g., clot, blood vessel wall). These methods and apparatuses may include a steerable distal end region. In some cases the apparatuses and methods may include a retriever probe to assist in capturing clot material.

A method of measuring at least one biomechanical property of a reproductive cellular structure is provided. The method includes illuminating the reproductive cellular structure with radiation; detecting at least a portion of radiation scattered from the illuminated reproductive cellular structure; analyzing a frequency spectrum of the detected scattered radiation to identify at least one Brillouin frequency shift in the frequency spectrum; and determining the at least one biomechanical property based on the Brillouin frequency shift. The method further includes determining a viability index of the reproductive cellular structure based on the at least one biomechanical property.

This application discloses a method, apparatus, storage medium, and electronic device for evaluating the signal quality of fNIRS (functional optical brain imaging). The method includes: acquiring incident light intensity data and emitted light intensity data emitted by a light source; determining the coefficient of variation based on the incident light intensity data, and determining the signal-to-noise ratio based on the incident light intensity data and the emitted light intensity data; processing the incident light intensity data to obtain the number of peaks and heartbeat signal characteristics within a preset frequency range; and determining the quality evaluation result of the fNIRS signal based on the coefficient of variation, signal-to-noise ratio, number of peaks, and heartbeat signal characteristics. The evaluation method of this application can comprehensively measure the quality of near-infrared signals and can adapt to the physiological characteristics of different individuals to guide real-time signal quality detection and iterative hardware design.

Provided is a near-infrared light emitting device (10) including: a solid-state light emitting element (1); and a wavelength converter (2) that includes a phosphor, wherein the near-infrared light emitting device emits two or more fluorescent components from one light output surface. The two or more fluorescent components include a first fluorescent component and a second fluorescent component positioned in order from a short wavelength side. In a spectral shape of the first fluorescent component, a slope in a long wavelength region from a fluorescence peak of the first fluorescent component is steeper than that in a short wavelength region, and in a spectral shape of the second fluorescent component, a slope in a short wavelength region from a fluorescence peak of the second fluorescent component is steeper than that in a long wavelength region. The second fluorescent component has the fluorescence peak, which is within a wavelength range of 780 nm or more and 1,000 nm or less.

Disclosed herein are implants with sensors and methods for powering implants with sensors. A joint implant according to the present disclosure can include a first implant and a second implant in contact with the first implant. The first implant can be coupled to a first bone of a joint. The first implant can include an energy generator coupled to a transducer. The second implant can include at least one sensor, a battery coupled to the at least one sensor, and a receiver coupled to the battery. The receiver can be disposed within the second implant adjacent the transducer. Energy from the energy generator can be transmitted from the transducer of the first implant to the receiver of the second implant.

A touchless system for assessing a status of a target individual may include an optical component configured to image a patient sample, a Raman spectrometer subsystem configured to detect inelastically scattered light from the patient sample, and a laser-induced fluorescence spectrometer subsystem configured to detect fluorescence emissions of the sample; and a controller configured to receive the inelastically scattered light from the Raman spectrometer subsystem, receive the fluorescence emissions from the laser-induced fluorescence spectrometer subsystem, and determine a status of the sample based on the inelastically scattered light and the fluorescence emissions.

A detection apparatus includes a semiconductor substrate, a first photoelectric conversion unit formed at the semiconductor substrate, a first light emitting layer formed by being stacked at the semiconductor substrate, and a first filter layer formed by being stacked at the first photoelectric conversion unit.

In one embodiment, an apparatus includes a needle that includes a substantially cylindrical shaft that includes a tip located at a distal end of the shaft, where the tip includes an opening. The apparatus also includes an optical waveguide located within the shaft of the needle. The optical waveguide is configured to (i) receive a pump-Stokes beam of light emitted from an end face of an optical fiber, where the optical-fiber end face is located at a proximal end of the shaft opposite the distal end and (ii) convey the pump-Stokes beam along the optical waveguide to the tip of the needle, where the pump-Stokes beam is emitted from the optical waveguide and directed through the opening of the needle to a sample.

A system and kit for measuring analyte concentration in a bodily fluid includes a durable component, at least one indicator component including an indicator zone, and at least one moisture sensor. The kit has a plurality of individually packaged indicator components. A method of measuring analyte concentration in a bodily fluid and predicting future health risks includes the steps of collecting and transporting a bodily fluid to at least one colorimetric analyte sensing element and detecting the presence of the bodily fluid in contact with the at least one colorimetric analyte sensing element, collecting optical data related to the at least one colorimetric analyte sensing element with at least one spectrophotometer after a predetermined period of time after detecting the presence of the bodily fluid, transmitting the optical data to a computing system having at least one processor and data storage device, and analyzing the optical data to determine at least one analyte concentration in the bodily fluid.

An apparatus for estimating bio-information according to an embodiment of the present disclosure includes a processor configured to obtain spectra from an object, obtain a component produced based on a change in pressure applied to the object, correct the spectra based on the obtained component produced based on the change in pressure, and estimate bio-information of the object based on the corrected spectra.

A wearable device (1), comprising a plurality of emitters (2) arranged on a carrier (4), and an object intake (5) is provided. Each emitter (2) is configured to emit electromagnetic radiation towards the object intake (5), the emitters (2) are distributed around the object intake (5) and the carrier (4) is arranged on the side of the emitters (2) facing away from the object intake (5). The wearable device (1) is configured to perform detection of a movement of an object (10) arranged in the object intake (5) and / or tactile sensing. At least one emitter can be a micro-LED. Furthermore, a method for operating a wearable device is provided.

The present invention provides a device and method for preventing obesity and regulating body weight using non-invasive blood glucose measurement, the device comprising: a sensing unit that generates lifestyle pattern biological information by detecting motion sensing information and body information; a storage unit that stores biological information, motion standard model information, blood glucose measurement information, and blood glucose measurement synthesis information; a blood glucose measurement unit that measures blood glucose of a user in real time by non-invasive blood glucose measurement to acquire blood glucose measurement information; a personal matching unit that compares the amount of blood glucose measured by the blood glucose measurement unit with blood glucose amount synthesis information stored in the storage unit according to an externally input or preset blood glucose level range and increase / decrease information; a blood glucose level processing unit that outputs a personal matching result in real time using a comparison result of the personal matching unit; and an output unit that outputs the personal matching result output from the blood glucose level processing unit to the outside so that the outside can recognize.

A method and apparatus of non-invasively determining a blood circulatory hemoglobin value for a subject using a near-infrared spectrophotometric (NIRS) sensing device is provided. The method includes: a) non-invasively sensing tissue of the subject using the NIRS sensing device at about a time T1, and determining at least one NIRS tissue totalHb value; b) acquiring at least one circulatory blood sample from the subject at about the time T1; c) determining at least one blood circulatory THb value; d) calibrating the NIRS sensing device using the at least one blood circulatory THb value and the at least one NIRS tissue TotalHb value; and e) determining at least one blood circulatory hemoglobin value using the calibrated NIRS sensing device and the at least one NIRS tissue totalHb value.

Fluorescence from a material sample is excited. The exciting enables capture of fluorescence characteristics of the material sample. The fluorescence characteristics occur along the Red-Green-Blue (RGB) light wavelength spectrum. The exciting is accomplished using at least two different fluorescence excitation wavelengths. The material sample is illuminated with additional light wavelengths. The illuminating enables capture of reflectance characteristics of the material sample. The material sample exhibits reflectance characteristics along the RGB light wavelength spectrum. The illuminating is accomplished using at least three additional light wavelengths. A depth estimation of the material sample is mapped, based on the reflectance characteristics. A material composition is detected, based on analysis of the fluorescence characteristics, the reflectance characteristics, and the depth estimation. The material composition is indicative of a biophysical status of the material sample.