Entries |
Document | Title | Date |
20090005663 | NON-INVASIVE MEASUREMENT OF BLOOD ANALYTES - An apparatus for the measurement of at least one analyte in the blood of a patient, which includes a light source generating broadband light and a light-transmission arrangement having a plurality of transmitting fibers is positioned for simultaneously transmitting multiple wavelengths of the broadband light from the light source to the blood of the patient. The measurement apparatus further includes an optical fiber arrangement having a plurality of light detector fibers for leading multi-wavelength light, in spectrally unseparated form, transmitted through, or reflected from, the blood and a light detection arrangement for receiving the multi-wavelength light in its spectrally unseparated form from the optical fiber arrangement, for spectrally decomposing the received light, and for determining amplitudes of selected wavelengths of the decomposed light. The measurement apparatus utilizes a non-pulsatile element of the patient's blood for determining the measurement of at least one analyte in the blood as a function of the amplitudes of the selected wavelengths. | 01-01-2009 |
20100130842 | DEVICE AND METHOD FOR TRANSCUTANEOUS DETERMINATION OF BLOOD GASES - The device for the transcutaneous determination of blood gases including a transcutaneous sensor for the measurement of at least one of the parameters of skin carbon dioxide partial pressure (PsCO2) and skin oxygen partial pressure (PsO2) includes at least one sensor for the measurement of the tissue blood flow (F) local with respect to the transcutaneous sensor, and includes a device for the calculation of at least one of the parameters of transcutaneous carbon dioxide partial pressure (tcpCO2) and transcutaneous oxygen partial pressure (tcpO2) from the measured skin carbon dioxide partial pressure (PsCO2) or the measured skin oxygen partial pressure (PsO2), with a factor dependent on the local tissue blood flow (F) being taken into account in the calculation of at least one of the parameters of transcutaneous carbon dioxide partial pressure (tcpCO2) and transcutaneous oxygen partial pressure (tcpO2). | 05-27-2010 |
20100168536 | WIRELESS, INTERNET-BASED, MEDICAL DIAGNOSTIC SYSTEM - A system for monitoring a patient, including: a body-worn monitor having an electrical sensor that measures an electrical waveform from the patient and a wireless transmitter configured to receive the electrical waveform and transmit it over a wireless interface; a computer-based system configured to receive the electrical waveform from the wireless interface and store it in a database; a first algorithm configured to analyze the electrical waveform from the database by comparing it to an secondary electrical waveform previously measured from the patient to determine a property related to the patient's cardiac condition; and a second algorithm configured to analyze the patient's cardiac condition determined by comparing the secondary electrical waveform to the electrical waveform and, in response, transmit a text message. | 07-01-2010 |
20110237914 | PHYSIOLOGICAL PARAMETER CONFIDENCE MEASURE - Confidence in a physiological parameter is measured from physiological data responsive to the intensity of multiple wavelengths of optical radiation after tissue attenuation. The physiological parameter is estimated based upon the physiological data. Reference data clusters are stored according to known values of the physiological parameter. At least one of the data clusters is selected according to the estimated physiological parameter. The confidence measure is determined from a comparison of the selected data clusters and the physiological data. | 09-29-2011 |
20120041290 | ENDOSCOPIC POLARIZED MULTISPECTRAL LIGHT SCATTERING SCANNING METHOD - Method and system for early detection of precancerous and other abnormal changes in tissue of various organs. The system comprises a combination of endoscopic scanning with light scattering spectroscopy and improves detection of abnormalities that may otherwise remain undetected. The system may include a probe that collects data of quality that is independent of a distance of the probe from the scanned tissue. During endoscopy, tissue of an organ is imaged using polarized multispectral light scattering scanning and results are presented to a user in a manner that allows detecting abnormal morphological and biochemical changes in the tissue. A determination of whether to perform biopsy may be performed while the endoscopy is being performed, which thus provides guided biopsy. An entire surface of the organ may be rapidly scanned and results of the scanning are analyzed with a reduced time delay. | 02-16-2012 |
20120059234 | Blood Chamber for an Optical Blood Monitoring System - An extracorporeal blood chamber for an optical blood monitoring system includes an opaque chamber body in order to prevent inaccuracies when measuring oxygen saturation levels due to light ducting, which can occur at low oxygen saturation levels and low hematocrit levels. In one embodiment, the blood chamber need not include a moat as is present in conventional blood chambers. | 03-08-2012 |
20130281806 | NON-INVASIVE ANALYTE SENSING SYSTEM AND METHOD - A non-invasive gas analyte sensing and monitoring system and method is provided that is particularly applicable to transcutaneous monitoring of arterial blood gases in a mammal. The system and method relies on diffusion of the analyte to be measured into a diffusion chamber and remote sensing of the analyte in the diffusion chamber using optical chemical sensors and associated optoelectronics. | 10-24-2013 |
20150011852 | SENSOR FOR DETERMINING CONCENTRATION OF GAS - An optical sensor unit ( | 01-08-2015 |
20160153964 | Interpretation of Gas Levels Measured Via Breath, Blood and Skin after Different Breath-Holding Times | 06-02-2016 |