Germantown, MD, United States
Germantown, MD, United States

Time filter

Source Type

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.


An analyte indicator may include a porous base and may be included in an analyte sensor. The analyte indicator may retain its physical, chemical, and optical properties in the presence of compression. The porous base may not vary in opacity. The analyte indicator may include (i) a polymer unit attached or polymerized onto or out of the porous base and (ii) an analyte sensing element attached to the polymer unit or copolymerized with the polymer unit. The analyte sensing element may include one or more indicator molecule. The analyte sensing element may include one or more indicator polymer chains. The analyte indicator may include (i) an indicator polymer chain attached or polymerized onto or out of the porous base and (ii) indicator molecules attached to the indicator polymer chain.


Patent
Senseonics | Date: 2015-04-02

An optical isolation element is provided on an optical sensor comprising a light source, at least one photodetector, and indicator material that emits light that is detected by the photodetector when optically excited by the light source. The optical isolation element limits the optical paths by which light may be transmitted by the light source, thereby limiting exposure of the excitation light source to regions of interest. The optical isolation element also limits the optical paths by which light may be transmitted to the photodetector, thereby limiting exposure of the photodetector to light from extraneous sources.


Patent
Senseonics | Date: 2016-05-27

A computing device receives analyte data produced by an analyte monitoring sensor over a communications link from at least one first device. Health data, comprising at least part of the analyte data, may be communicated over a communications link to at least one second device in response to a request. The first device may be positioned over the analyte monitoring sensor using signal strength and location information. External analyte data may be employed to calibrate the analyte monitoring sensor.


Patent
Senseonics | Date: 2016-05-27

A computing device receives analyte data produced by an analyte monitoring sensor over a communications link from at least one first device. Health data, comprising at least part of the analyte data, may be communicated over a communications link to at least one second device in response to a request. The first device may be positioned over the analyte monitoring sensor using signal strength and location information. External analyte data may be employed to calibrate the analyte monitoring sensor.


Apparatuses and methods for improving the accuracy of an analyte sensor are disclosed. The sensor may include a photodetector and a low angle sensitive (LAS) optical filter. The photodetector may be configured to convert received light into current indicative of the intensity of the received light. The LAS optical filter may be configured to prevent light having a wavelength outside a band pass region from reaching the photodetector and to pass light having a wavelength within the band pass region to the photodetector. The percentage of light passing through the LAS optical filter may decrease as the angle of incidence of the light increases.


A multisite sensing system including two or more analyte sensors, an interface device, and a shared bus. The interface device may be configured to receive a power signal and generate power for powering the analyte sensors and to convey data signals generated by the analyte sensors. The shared bus connected to the interface device and each of the analyte sensors and configured to provide the power generated by the interface device to the analyte sensors and to provide the data signals generated by the analyte sensors to the interface device. The interface device may be an inductive element. The shared bus may be a two wire, multiplexed bus. The analyte sensors may be spatially separated for analyte sensing at least two different locations. The analyte sensors may generate data signals indicative of the presence and/or amount of the same analyte or of one or more different analytes.


Patent
Senseonics | Date: 2016-05-27

A computing device receives analyte data produced by an analyte monitoring sensor over a communications link from at least one first device. Health data, comprising at least part of the analyte data, may be communicated over a communications link to at least one second device in response to a request. The first device may be positioned over the analyte monitoring sensor using signal strength and location information. External analyte data may be employed to calibrate the analyte monitoring sensor.


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.


Patent
Senseonics | Date: 2015-02-24

Sensors and methods for measurement of an analyte in a medium within a living animal are described. The sensor may include an inductive element that may receive power from an external device. The sensor may also include a charge storage device (CSD) and a memory. The sensor may perform analyte measurements initiated by the external device using power received from the external device and convey the analyte measurements to the external device using the inductive element. The sensor also may perform autonomous analyte measurements using the on board charge devices power and store the autonomous analyte measurements in the memory. The sensor may convey one or more stored analyte measurements to the external device using the inductive element using power received from the external device. The sensor may include a CSD-powered clock and a CSD-powered measurement scheduler that initiate the autonomous analyte measurements.

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