Disclosed is an antenna device for measuring biometric information by using a leaky wave. The antenna device according to an embodiment may include an antenna main body formed to surround at least some portion of the body having a target analyte. The antenna main body may include a plurality of transmission-side slots and a plurality of reception-side slots formed on a surface surrounding the body portion. An electromagnetic wave is excited inside the antenna main body may be radiated to an inside of the body portion through at least one of the plurality of transmission-side slots. Information on an analyte within the body portion may be sensed based on a frequency of an electromagnetic wave received through at least one of the plurality of reception-side slots via the body portion.

Diabetes analysis system for analysis and interpretation of data related to glucose level (GL) in blood. The system includes an input module to receive GL related data from measurements of interstitial fluid in subcutaneous tissue, and a hypoglycemia identification module to identify hypoglycemic events by performing a computer-implemented automatic search of the received GL related data. All uninterrupted glucose levels less than a predetermined level in a same time series are considered as one hypoglycemic event. A hypoglycemia classification module analyzes, for each identified event, the glucose data during a predetermined first time period preceding the hypoglycemic event, to determine the glucose level during the first time period. The hypoglycemia classification module determines the type of hypoglycemia event, based upon the glucose level during the first time period, by applying a computer-implemented pattern search procedure on a predetermined hypoglycemic classification scheme, in order to identify the underlying cause of hypoglycemia.

Disclosed are a biometric information measuring apparatus and method. An external device according to an embodiment includes a dipole antenna and a cavity reflecting an electro-magnetic field, radiated by the dipole antenna, in a direction toward an inside of a body having a target analyte. The external device may be attached to the exterior of the body having the target analyte.

A glucose measuring system includes a glucose meter that incorporates wireless communication capabilities. The meter can advantageously be a low cost meter by eliminating expensive components, such as the display. The user nevertheless is able to retrieve and view his or her glucose values by referring to displays within the glucose measuring local area network. Feedback via these displays can advantageously be used by the diabetic to create a higher level of confidence and safety.

Analyte sensors and methods of manufacturing same are provided, including analyte sensors comprising multi-axis flexibility. For example, a multi-electrode sensor system 800 comprising two working electrodes and at least one reference/counter electrode is provided. The sensor system 800 comprises first and second elongated bodies E1, E2, each formed of a conductive core or of a core with a conductive layer deposited thereon, insulating layer 810 that separates the conductive layer 820 from the elongated body, a membrane layer deposited on top of the elongated bodies E1, E2, and working electrodes 802′, 802″ formed by removing portions of the conductive layer 820 and the insulating layer 810, thereby exposing electroactive surface of the elongated bodies E1, E2.

Systems and methods for processing sensor data and self-calibration are provided. In some embodiments, systems and methods are provided which are capable of calibrating a continuous analyte sensor based on an initial sensitivity, and then continuously performing self-calibration without using, or with reduced use of, reference measurements. In certain embodiments, a sensitivity of the analyte sensor is determined by applying an estimative algorithm that is a function of certain parameters. Also described herein are systems and methods for determining a property of an analyte sensor using a stimulus signal. The sensor property can be used to compensate sensor data for sensitivity drift, or determine another property associated with the sensor, such as temperature, sensor membrane damage, moisture ingress in sensor electronics, and scaling factors.

In some aspects, an apparatus for a biosensor includes a sensor wire and a rigid member. The rigid member may be coupled to the sensor wire and include a contact surface. The contact surface may be sized to enable a suction head of a robotic placement device to create a vacuum seal on the contact surface for lifting the sensor wire and rigid member.

A method for detecting a failure of at least one component of a continuous analyte monitoring system is disclosed. The continuous analyte monitoring system has a failure detection resistor and an analyte sensor having at least two measurement electrodes. A constant voltage is applied between the two measurement electrodes and a first response signal is measured. A failure detection signal that is distinguishable from the constant voltage and/or from the first response signal in frequency and/or in height is applied to the continuous monitoring system, and a second response signal to the failure detection signal is measured using the failure detection resistor. Information is determined depending on at least one actual property of the component by evaluating the first response signal and the second response signal. A failure is detected if the information deviates from an expected value by more than a predetermined tolerance.

The disclosure relates to two methods to modify microneedles and needles to transform them as electrochemical sensors for ions and biomolecules. The methods focus on microneedles and needles made of any material through an external and internal modification methods to provide the function as electrodes: the working electrode, (pseudo)counter electrode and/or (pseudo)reference electrode depending on the electrochemical readout. With the external modification method, any solid microneedle and needle can be individually transformed in either of the said electrodes. With the internal modification method, any hollow microneedle and needle can be individually transformed in either of the electrodes. The working electrode, (pseudo)counter electrode and or (pseudo)reference electrode can be simultaneously integrated into the same hollow microneedle or needle by internal compartmentation. Two different biofluids can be simultaneously targeted by microneedles and needles of different sizes, structures and fabricated by one or both methods when integrated in the same skin patch.

A biometric information measurement system and method are disclosed. A biometric information measurement system according to an embodiment of the present invention may comprise an implant device that is inserted into the human body so as to measure biometric information and an external device that transmits a signal to the implantable device while sweeping a frequency.