Patent application number | Description | Published |
20140187877 | ANALYTE PERMEABLE MEMBRANE SYSTEMS FOR OXIDATIVE AND OPTICAL STABILITY - A sensor that may be used to detect the presence, amount, and/or concentration of an analyte in a medium within an animal. The sensor may include a sensor housing, an indicator element embedded within and/or covering at least a portion of the sensor housing, and a membrane over the indicator element. The membrane may reduce indicator element deterioration by preventing immune cells, such as white blood cells, from contacting the indicator element, substantially prevent transmission of light of at least a specified wavelength or range of wavelengths through the membrane, and/or permit the analyte to pass through to the indicator element. The membrane may be an opaque diffusion membrane. The sensor may include a foil. The foil may block light and/or reduce indicator element deterioration. The membrane may reduce oxidation of the indicator element. | 07-03-2014 |
20140187878 | ANALYTE PERMEABLE MEMBRANE SYSTEMS FOR OXIDATIVE AND OPTICAL STABILITY - A sensor that may be used to detect the presence, amount, and/or concentration of an analyte in a medium within an animal. The sensor may include a sensor housing, an indicator element embedded within and/or covering at least a portion of the sensor housing, and a membrane over the indicator element. The membrane may reduce indicator element deterioration by preventing immune cells, such as white blood cells, from contacting the indicator element, substantially prevent transmission of light of at least a specified wavelength or range of wavelengths through the membrane, and/or permit the analyte to pass through to the indicator element. The membrane may be an opaque diffusion membrane. The sensor may include a foil. The foil may block light and/or reduce indicator element deterioration. The membrane may reduce oxidation of the indicator element. | 07-03-2014 |
20140324067 | SUBCUTANEOUS TUNNELING AND IMPLANTATION TOOLS FOR A DISK-SHAPED SENSOR - Tunneling and implantation tools that may be used to implant a sensor within a living animal. For example, the sensor may be implanted in subcutaneous tissue below the skin. The sensor may be disk-shaped and may be capable of being compressed (e.g., wrapped) in a more cylindrical shape. The sensor may or may not be able expand on its own (i.e., to force tissue apart to accommodate the sensor in its full disk-shape) after insertion into the living animal. The tunneling tool may have a flat and wide tip, a vibration device, arms attached to a rod at its tip, a spring in a hollow tube at the end of a rod, and/or oscillating teeth. The implantation tool may have jaws that clamp and then release the sensor and/or rods that insert into channels of the sensor and spread apart to assist in opening up a compressed sensor. | 10-30-2014 |
20140350359 | ANALYTE SENSOR TRANSCEIVER CONFIGURED TO PROVIDE TACTILE, VISUAL, AND/OR AURAL FEEDBACK - A transceiver for interfacing with an analyte sensor. The transceiver may include an interface device and a notification device. The interface device may be configured to convey a power signal to the analyte sensor and to receive data signals from the analyte sensor. The notification device may be configured to generate one or more of a vibrational, aural, and visual signal based on one or more data signals received from the analyte sensor. The interface device of the transceiver may receive analyte data from the analyte sensor, and the transceiver may comprise a processor configured to calculate an analyte concentration value based on the received analyte data. The notification device may be configured to generate one or more of aural, visual, or vibrational alarm when the calculated analyte concentration value exceeds or falls below a threshold value. | 11-27-2014 |
20150057509 | DRUG ELUTION FOR IN VIVO PROTECTION OF BIO-SENSING ANALYTES - A sensor (e.g., an optical sensor) that may be implanted within a living animal (e.g., a human) and may be used to measure an analyte (e.g., glucose or oxygen) in a medium (e.g., interstitial fluid, blood, or intraperitoneal fluid) within the animal. The sensor may include a sensor housing, an analyte indicator covering at least a portion of the sensor housing, and one or more therapeutic agents. The one or more therapeutic agents may reduce deterioration of the analyte indicator. The one or more therapeutic agents may be incorporated within the analyte indicator, a membrane covering at least a portion of the analyte indicator, and/or one or more drug eluting polymer matrices, which may be external to or within the sensor housing. | 02-26-2015 |
20150099956 | USE OF A SENSOR WITH MULTIPLE EXTERNAL SENSOR TRANSCEIVER DEVICES - Methods, sensors, and systems that prevent or reduce data loss when more than one external sensor transceiver is used with a sensor. A sensor may receive a transceiver identification (ID) of an external transceiver conveyed from the external transceiver and determine whether the received transceiver ID is a new transceiver ID. If sensor determines the received transceiver ID to be a new transceiver ID, the sensor may store the received transceiver ID in a nonvolatile storage medium of the sensor and convey, using the sensor, measurement information stored in the nonvolatile storage medium to the external transceiver. | 04-09-2015 |
20150141777 | FLUORESCENCE-BASED SENSOR WITH MULTIPLE INDICATOR GRAFTS - A system including a sensor and a transceiver and configured to determine a concentration of an analyte in a medium of a living animal. The sensor may include first and second signal photodetectors and first and second reference photodetectors, which may each be covered by an associate filter. The first photodetector may receive light emitted from first and second grafts, respectively. The grafts may receive excitation light from one or more light sources. The transceiver may receive signals from the photodetectors of the sensor and may determine the analyte concentration based on the received signals. | 05-21-2015 |
20150257787 | SUBCUTANEOUS SENSOR IMPLANT INSERTION TOOL WITH BIORESORBABLE TIP - A system, method, and apparatus for implanting a sensor or other item into tissue of an animal includes the use of a tapered tip, which may be made from a bioresorbable material. The tapered tip may be removably attached to the distal end of a sleeve or cannula within which the item to be implanted is positioned. The tapered tip may facilitate advancement of the sleeve into the tissue to form a pocket within the tissue. Retraction of the sleeve may remove the item from the sleeve and separate the tip from the sleeve, thereby depositing the tip and the item in the pocket formed in the tissue. | 09-17-2015 |