75 results about "Oxygenated Hemoglobin" patented technology

The invention relates to methods and devices for measuring pulsus paradoxus. The methods herein employ a combination of one or more forms of waveform analysis for the purpose of measuring pulsus paradoxus and diagnosing respiratory distress. The methods also combine measurements of pulsus paradoxus and physician assessments to diagnose respiratory distress. The methods also combine measurements of pulsus paradoxus and percentage oxygenated hemoglobin to diagnose respiratory distress. The devices of this invention employ pulse oximeters, arterial tonometers, finometers, or processors for the purpose of implementing the methods of the invention.

The present invention relates to blood products, and more particularly to compositions comprising a modified oxygenated hemoglobin having a high affinity for oxygen and methods for making such compositions. Such compositions according to the present invention have better stability to autooxidation and superior oxygen carrying characteristics.

Methods and apparatus are provided for detecting an abnormality in a host medium, such as a tumor within a patient's breast. The host medium is initially illuminated at a plurality of different positions with light of at least two different wavelengths. Following the propagation of the signals through the host medium, the amplitude and phase of the signals are detected and, based upon the detected signals, a shadow image can be created in which the abnormality is depicted as a suspicious region. Once a suspicious region has been identified, at least that portion of the host medium that contains the suspicious region is again illuminated with frequency-swept modulated signals of at least two different wavelengths generated by the light source and modulated by a modulator, such as a network analyzer. Based upon the detected signals that have propagated through at least that portion of the host medium that includes the suspicious region, a P-criteria can be determined that is dependent upon the coefficient of absorptivity of the host medium and embedded abnormalities. Likewise, an S_var-criteria can be determined based upon concentrations of oxygenated hemoglobin and deoxygenated hemoglobin. Based upon at least these criteria which reflect physiological parameters of the host medium and embedded abnormalities as well as the possible comparison of the shadow images to an x-ray image of the host medium, the abnormality can be characterized. In addition, an apparatus is provided that facilitates the compression of a patient's breast in order to improve the resulting images.

A physiologically ingestible composition of matter obtained by using super-oxygenated and structured water, and uses thereof are provided. The tuned super-oxygenated and structured water is produced by receiving oxygen enriched water into a coil system and passing the water therethrough, combining water output by the coil system with structured ozone, inputting the combined water and structured ozone to a multicoil system and passing the water therethrough, and outputting tuned super-oxygenated and structured water. The tuned super-oxygenated and structured water may also be utilized for producing and tuning super-oxygenated and structured water. The physiologically ingestible composition of matter may be administered to increase the level of oxygenated hemoglobin in the blood of a mammal.

A method and apparatus for determining at least one hemoglobin related parameter of a whole blood sample is provided. The method includes the steps of: a) depositing the sample into an analysis chamber adapted to quiescently hold the sample for analysis, the chamber defined by an interior surface of a first panel, and an interior surface of a second panel, and the chamber has a height extending between the interior surfaces of the panels, wherein the chamber is configured to increase the oxygenation state of the sample to a substantially oxygenated state within a predetermined amount of time after entry into the chamber; b) imaging the at least one red blood cell contacting the interior surfaces, and producing image signals; c) determining an optical density of at least a portion of the imaged red blood cell contacting both interior surfaces; and d) determining the at least one hemoglobin related parameter of the red blood cell contacting the interior surfaces, using the determined optical density and a molar extinction coefficient for oxygenated hemoglobin.

A physiologically ingestible composition of matter obtained by preparing water with a negative oxidation reduction potential (ORP), and the uses thereof, are provided. The obtaining method includes preconditioning water received from a water source for electrolysis, performing electrolysis on the preconditioned water, and outputting alkaline water and/or acidic water with a negative ORP. The output alkaline water and/or acidic water with a negative ORP may be used for a variety of purposes and/or applications. For example, the method may be utilized as part of a method for producing and tuning super-oxygenated and structured water. The physiologically ingestible composition of matter may be administered to increase the level of oxygenated hemoglobin in the blood of a mammal.

The invention relates to an upper limb movement imagination pattern recognition based on multi-modal signals. At first, the movement imagination pattern recognition based on multi-modal signals calculates the original near infrared spectrum signal to obtain the oxygenated hemoglobin content in the brain, and extract the CSP characteristic from the oxygenated hemoglobin content value; secondly, thesample entropy is extracted from the EEG signal; then, the obtained multimodal features are normalized and serially fused; and finally, the support vector machine model is used to classify the fusedmulti-modal features. The movement imagination pattern recognition based on multi-modal signals has the advantages of maintaining high spatial resolution of the electroencephalogram signal, and supplementing the characteristics of high temporal resolution of the near-infrared spectrum signal at the same time, so that the recognition rate of the upper limb movement imagination mode is improved.

The mental state, such as mood or emotion, of an individual can be apprehended by a method using non-invasive biological light measurement technology. A biological light measurement device, which has an irradiation section, presents different tasks (at least a first task and a second task) to a subject, hemoglobin signals based on changes in the concentration of oxygenated hemoglobin and deoxygenated hemoglobin in the subject are calculated from the strength of light detected by a detection section, and a relative value using the hemoglobin signal at a predetermined measurement channel with respect to the first task, and the hemoglobin signal at a different predetermined measurement channel with respect to the second task is calculated.

The invention discloses a device for measuring oxygenated hemoglobin and deoxygenated hemoglobin and a near infrared brain imaging device. The device comprises an interface module, a near infrared receiving and transmitting module and a controller, wherein the near infrared transceiving module is provided with a plug-and-play interface and plugged in the interface module through the plug-and-playinterface, the near infrared receiving and transmitting module is driven by the controller to transmit preset-wavelength near infrared rays to measured cerebral cortex and receive light intensity signals generated when the near infrared rays are reflected by the measured cerebral cortex. The controller is connected with the interface module and used for receiving the light intensity signals outputby the near infrared receiving and transmitting module and measuring parameters of oxygenated hemoglobin and deoxygenated hemoglobin of the measured cerebral cortex according to the light intensity signals. Thus, according to the characteristic that hot plug is supported by the near infrared receiving and transmitting module, the aims of increasing and decreasing functions and channel number canbe realized, and the reusability of the device and the usage rate of parts can be increased.

In the special observation mode, second illumination light including different-absorption-wavelength light that has different absorption coefficients for oxygenated hemoglobin and reduced hemoglobin is emitted, a turn-off state is thereafter initiated, and signal reading is performed for some of a plurality of pixel rows in accordance with a skip read method. Subsequently, first illumination light, which is normal light, is emitted, a turn-off state is thereafter initiated, and signal reading is performed for all of the pixel rows in a column direction in accordance with a pixel addition read method. An image processor generates an oxygen saturation image on the basis of a second image capture signal read in accordance with the skip read method and a first image capture signal read in accordance with the pixel addition read method, and generates a normal observation image on the basis of the first image capture signal.

The present invention provides systems, devices, and methods to vaporize prostatic tissue having oxygenated hemoglobin. The systems, devices, and methods include a laser module configured to emit light near an absorption peak of the oxygenated hemoglobin and a delivery catheter that is optically coupled to the laser module and configured to deliver the light from the laser module to the prostatic tissue.

PPG is photo plethyamo graphy, which is characterized in that LED light is emitted to skin, a photosensitive sensor is used for receiving the light reflected from the skin tissue after being absorbedby the skin tissue or transmitting the skin, and the electric signal obtained by the photosensitive sensor is converted into a digital signal so as to obtain the final PPG signal. Due to the differentabsorption characteristics of oxygenated hemoglobin and hemoglobin, a prior method uses light with two wavelengths to respectively measure the intensity of the reflected light alternating current signal, and then calculates the proportion of the oxygenated hemoglobin and hemoglobin according to the absorption characteristic diagram of the two beams of light. The invention provides a device for measuring the heart rate and the blood oxygen saturation based on depth learning and PPG signals, which is used for obtaining two paths of PPG signals by using two beams of light, and meanwhile, the PPGsignals are processed through a depth learning network model in the device, thereby predicting the heart rate and blood oxygen saturation of a human body. The device has good tolerance to noise, andcan accurately measure the heart rate and the blood oxygen in a resting state or a motion state.

The present invention relates to blood products, and more particularly to compositions comprising a modified oxygenated hemoglobin having a high affinity for oxygen and methods for making such compositions. Such compositions according to the present invention have better stability to autooxidation and superior oxygen carrying characteristics.

The invention relates to a device for quantitatively detecting the spectral content distribution of oxygenated hemoglobin and deoxygenated hemoglobin. The device comprises a light source module, an imaging module, an adjusting bracket, an image data transmission link, a control command transmission link and a computer. As a technical means of high spectral imaging is adopted, the full cover detection is realized in a detected region, and a characteristic spectrum of the oxygenated hemoglobin and the deoxygenated hemoglobin is extracted through using a spectral decomposition technology, the calculation is carried out by utilizing a regional oxygen saturation computational formula, and the device and the method have the characteristics of acquiring comprehensive information and being high in precision without any reagent.