Patent classifications
A61B5/1473
Analyte Monitoring System and Methods
Disclosed embodiments include methods and systems including a receiver unit of a glucose monitoring system. The receiver is configured for communicating with a remote transmitter unit coupled with a glucose sensor. The glucose sensor generates data signals associated with a glucose level. The receiver unit includes a processor, a display, and a memory for storing instructions which, when executed by the processor: access a transmitter key associated with the remote transmitter unit; transmit a command to the remote transmitter unit after verifying the transmitter key; receive communication packets from the remote transmitter unit including a first data segment with data signals indicative of the glucose level and a second data segment with information corresponding to a remaining life of the remote transmitter unit; estimate a remaining life of the remote transmitter unit; process the data signals; and output the estimated remaining life and the processed data signals for display.
Medical Devices and Methods Thereof for Determining Bacterial Infections in Blood
Medical devices and methods thereof for determining bacterial infections in blood. The medical devices and methods thereof can utilize a coating including an antibody conjugated to a reporter protein configured to indicate a bacterial infection in a patient's blood by way of an antigen thereof. Exemplary medical devices include, but are not limited to, a catheter assembly, an AV fistula needle set, an extension set for either a catheter assembly or an AV fistula needle set, and a hemodialysis tubing set. The medical devices and methods thereof can utilize immunochromatographic separation of the antibody and an antigen-antibody complex to indicate a bacterial infection in a patient's blood.
Wireless stimulation probe device for wireless nerve integrity monitoring systems
A stimulation probe device including a first electrode, a stimulation module, a control module and a physical layer module. The stimulation module is configured to (i) wirelessly receive a payload signal from a console interface module or a nerve integrity monitoring device, and (ii) supply a voltage or an amount of current to the first electrode to stimulate a nerve or a muscle in a patient. The control module is configured to generate a parameter signal indicating the voltage or the amount of current supplied to the electrode. The physical layer module is configured to (i) upconvert the parameter signal to a first radio frequency signal, and (ii) wirelessly transmit the first radio frequency signal from the stimulation probe to the console interface module or the nerve integrity monitoring device.
Wireless stimulation probe device for wireless nerve integrity monitoring systems
A stimulation probe device including a first electrode, a stimulation module, a control module and a physical layer module. The stimulation module is configured to (i) wirelessly receive a payload signal from a console interface module or a nerve integrity monitoring device, and (ii) supply a voltage or an amount of current to the first electrode to stimulate a nerve or a muscle in a patient. The control module is configured to generate a parameter signal indicating the voltage or the amount of current supplied to the electrode. The physical layer module is configured to (i) upconvert the parameter signal to a first radio frequency signal, and (ii) wirelessly transmit the first radio frequency signal from the stimulation probe to the console interface module or the nerve integrity monitoring device.
Data-Stream Bridging for Sensor Transitions
Data-stream bridging for sensor transitions is described. A first data stream of glucose measurements is received from a first glucose sensor worn by a user. A termination event for the first glucose sensor is detected when production and/or communication of the first glucose measurements via the first data stream ceases. Next, a second data stream of glucose measurements is received from a second glucose sensor worn by the user that replaces the first glucose sensor. During a warmup period for the second glucose sensor, estimated glucose values are output for the user based on both the first data stream of glucose measurements received from the first glucose sensor prior to the termination event and the second data stream of glucose measurements received from the second glucose sensor.
Data-Stream Bridging for Sensor Transitions
Data-stream bridging for sensor transitions is described. A first data stream of glucose measurements is received from a first glucose sensor worn by a user. A termination event for the first glucose sensor is detected when production and/or communication of the first glucose measurements via the first data stream ceases. Next, a second data stream of glucose measurements is received from a second glucose sensor worn by the user that replaces the first glucose sensor. During a warmup period for the second glucose sensor, estimated glucose values are output for the user based on both the first data stream of glucose measurements received from the first glucose sensor prior to the termination event and the second data stream of glucose measurements received from the second glucose sensor.
Micro Biosensor and Sensing Structure Thereof
The present invention provides a sensing structure of a micro biosensor for performing a measurement of a physiological parameter of a target analyte of a biofluid and reducing an interference of an interferant of the biofluid on the measurement by an electrochemical reaction. The sensing structure includes: a substrate having a surface; a first working electrode configured on the surface, and including an active surface; at least one second working electrode configured on the surface and adjacent to the first working electrode, for consuming the interferant by the electrochemical reaction; and an isolated layer configured with respect to the active surface to program a diffusive distribution of the interferant when the biofluid flows through the second working electrode, wherein at least the interferant of the biofluid passes through the second working electrode over a time period and is consumed by the second working electrode by the electrochemical reaction.
DYNAMIC MODIFICATION OF CALIBRATION FREQUENCY
Methods, systems, and apparatuses for dynamic modification of calibration frequency. Dynamic modification of calibration frequency may include one or more of: receiving sensor data conveyed by an analyte sensor comprising an analyte indicator, using the sensor data to calculate one or more analyte levels, and receiving one or more reference analyte level measurements. Dynamic modification of calibration frequency may include using the sensor data, the one or more calculated analyte levels, and/or the one or more reference analyte level measurements to calculate a degradation rate of the analyte indicator of the analyte sensor. Dynamic modification of calibration frequency may include setting a dynamic calibration frequency based on the calculated degradation rate.
TRANSCUTANEOUS ANALYTE SENSORS, APPLICATORS THEREFOR, AND ASSOCIATED METHODS
- John Michael Gray ,
- Jennifer Blackwell ,
- Paul V. Neale ,
- Justen Deering England ,
- Andrew Joncich ,
- Cameron Brock ,
- Peter C. Simpson ,
- Thomas Metzmaker ,
- Neel Narayan Shah ,
- Mark Douglas Kempkey ,
- Patrick John Castagna ,
- Warren Terry ,
- Jason Halac ,
- Christian Michael Andre George ,
- Daniel E. Apacible ,
- John Charles Barry ,
- Maria Noel Brown Wells ,
- Kenneth Pirondini ,
- Andrew Michael Reinhardt ,
- Jason C. Wong ,
- Remy E. Gagnon ,
- David DeRenzy ,
- Randall Scott Koplin ,
- Alan Baldwin ,
- Young Woo Lee ,
- David A. Keller ,
- Louise Emma van den Heuvel ,
- Carol Wood Sutherland
The present embodiments relate generally to applicators of on-skin sensor assemblies for measuring an analyte in a host, as well as their method of use and manufacture. In some aspects, an applicator for applying an on-skin sensor assembly to a skin of a host is provided. The applicator includes an applicator housing, a needle carrier assembly comprising an insertion element configured to insert a sensor of the on-skin sensor assembly into the skin of the host, a holder releasably coupled to the needle carrier assembly and configured to guide the on-skin sensor assembly while coupled to the needle carrier assembly, and a drive assembly configured to drive the insertion element from a proximal starting position to a distal insertion position, and from the distal insertion position to a proximal retraction position.
Tunable detectors
Embodiments described herein relate to detectors and their method of use for sensing electromagnetic fields, electromagnetic signals, biochemical analytes, and/or other conditions in subjects. The device may include an inductively-coupled implantable coil-based transducer that converts electrical, photonic, biochemical signals, and/or other appropriate signals and/or conditions originating in tissues and/or transplanted tissue grafts into changes in a property of the transducer, such as a resonance frequency, that may be detected using an alternating magnetic field that may be provided by a magnetic resonance imaging (MRI) signal and/or other appropriate source. In some embodiments, the detector comprises a FET that changes state upon detection of a subject condition of interest. The change in the FET may change the resonance frequency of an associated LC or RLC circuit. The change in resonance frequency may change the brightness and/or intensity of the detector when detected by an MRI scanner or other appropriate scanner.