Inventors list

Assignees list

Classification tree browser

Top 100 Inventors

Top 100 Assignees


David R. Markle, Berwyn US

David R. Markle, Berwyn, PA US

Patent application numberDescriptionPublished
20090018418EQUILIBRIUM NON-CONSUMING FLUORESCENCE SENSOR FOR REAL TIME INTRAVASCULAR GLUCOSE MEASUREMENT - Embodiments of the present invention relates to analyte sensors. In particular, the preferred embodiments of the present invention relate to non-consuming intravascular glucose sensors based on fluorescence chemistry.01-15-2009
20090018426DEVICE AND METHODS FOR CALIBRATING ANALYTE SENSORS - The present invention relates to methods and systems for multipoint calibration of an analyte sensor. More specifically, the methods can be used to calibrate glucose sensors.01-15-2009
20090177143USE OF AN EQUILIBRIUM INTRAVASCULAR SENSOR TO ACHIEVE TIGHT GLYCEMIC CONTROL - A method for achieving tight glycemic control in a patient in need thereof is disclosed. The method comprises deploying an equilibrium glucose sensor within a blood vessel in the patient, coupling the sensor to a monitor that displays the blood glucose concentration, and administering a blood glucose regulator when the blood glucose concentration varies outside of the predetermined concentration range. The blood glucose regulator is administered in an amount sufficient to return the blood glucose concentration to within the predetermined concentration range, thereby achieving tight glycemic control.07-09-2009
20090264719SENSOR FOR PERCUTANEOUS INTRAVASCULAR DEPLOYMENT WITHOUT AN INDWELLING CANNULA - The present invention relates to a sensor for percutaneous insertion and intravascular residence without an indwelling cannula. In preferred embodiments, a glucose sensor is inserted into a blood vessel using a removable cannula. After the cannula is removed, the glucose sensor remains within the blood vessel by itself and forms a seal with the patient's tissue.10-22-2009
20100274110OPTICAL DETERMINATION OF PH AND GLUCOSE - Embodiments of the present invention are directed to an optical sensor capable of measuring two analytes simultaneously with a single indicator system. In preferred embodiments, the sensor comprises a fluorescent dye having acid and base forms that facilitate ratiometric pH sensing, wherein the dye is further associated with a glucose binding moiety and configured to generate a signal that varies in intensity with the concentration of glucose.10-28-2010
20100312483ALGORITHMS FOR CALIBRATING AN ANALYTE SENSOR - Disclosed are embodiments that relate to algorithms and methods for calibrating an analyte sensor, and more particularly, to algorithms for calibrating an optical glucose sensor comprising an equilibrium fluorescent chemical indicator system. In particular, a method of detecting an analyte concentration is disclosed where a modified Michaelis-Menten equation comprising Michaelis-Menten parameters is used to characterize the signal generated by the analyte sensor.12-09-2010
20110077477SENSORS WITH THROMBORESISTANT COATING - Embodiments of the present invention relate to analyte sensors comprising a heparin benzalkonium antithrombogenic coating, and methods of coating analyte sensors.03-31-2011
20110105866OPTICAL SENSOR CONFIGURATION FOR RATIOMETRIC CORRECTION OF BLOOD GLUCOSE MEASUREMENT - Embodiments of the invention are directed to an optical sensor for detecting blood glucose. The sensor comprises a chemical indicator system disposed within a gap between the distal end of an optical fiber and an atraumatic tip portion, wherein the optical fiber and atraumatic tip portion are coupled by a coupling member, such as a rod or hypotube or cage that traverses the gap. The sensor further comprises a means for generating and detecting an optical reference signal unrelated to the blood glucose, such that ratiometric correction of blood glucose measurements for artifacts in the optical system is enabled.05-05-2011
20110152658IDENTIFICATION OF ABERRANT MEASUREMENTS OF IN VIVO GLUCOSE CONCENTRATION USING TEMPERATURE - Disclosed herein are methods and systems for generating an estimate of an in vivo analyte concentration and identifying whether the estimate is aberrant. In some embodiments, the system includes a sensor comprising an analyte sensor and a temperature sensing element, and a control unit programmed to identify changes in temperature that may indicate a non-physiologic condition (and result in an aberrant glucose measurement). In some embodiments, the methods include generating an estimate of analyte concentration at a particular time using the analyte sensor, and generating first and second signals indicative of temperature using the temperature sensing element. In some embodiments the methods include identifying the estimate of analyte concentration as aberrant if the magnitude of the difference between the first and second signals indicative of temperature exceeds a threshold value.06-23-2011

Patent applications by David R. Markle, Berwyn, PA US