Systems and methods are disclosed herein that can allow for wirelessly powering and/or communicating with a sterile-packed electronic device without removing the electronic device from its sterile packaging and while maintaining the sterility of the electronic device. In some embodiments, a base station with a power transmitter wirelessly transfers power to a power receiver of the electronic device, for example using inductive, capacitive, or ultrasonic coupling. The base station or another external device can also be used to wirelessly program or interrogate the electronic device. Battery charging circuits and switching circuits for use with said systems and methods are also disclosed.

A method of non-invasive detection of an analyte includes generating a transmit signal having at least two different frequencies each of which is in a radio or microwave frequency range of the electromagnetic spectrum, and transmitting the transmit signal into a target containing at least one analyte of interest using at least one transmit antenna/element. At least one receive antenna/element that is decoupled from the at least one transmit antenna/element is used to detect a response resulting from transmitting the transmit signal by the at least one transmit antenna/element into the target containing the at least one analyte of interest. In one embodiment, the at least one transmit antenna/element can have a first geometry and the at least one receive antenna/element can have a second geometry that is geometrically different from the first geometry.

Methods and systems for providing data communication in medical systems are disclosed.

An apparatus includes an electrocardiograph device having first, second, and third, electrode assemblies with first, second, and third electrodes adapted to measure first, second, and third electrical signals of an individual, respectively. The apparatus further includes a processing device to: determine a Lead I from the first electrical signal and the second electrical signal; determine a Lead II from the second electrical signal and the third electrical signal; generate a Lead III using (Lead III=Lead II−Lead I); determine, using a machine learning model trained using measured twelve-lead ECG data, Leads aVR, aVL, aVF, V1, V2, V3, V4, V5, and V6 based on Lead I, Lead II, and Lead III; and provide Leads Lead I, Lead II, Lead III, aVR, aVL, aVF, V1, V2, V3, V4, V5, and V6 for display on a client device.

A method of non-invasive detection of an analyte includes generating a transmit signal having at least two different frequencies each of which is in a radio or microwave frequency range of the electromagnetic spectrum, and transmitting the transmit signal into a target containing at least one analyte of interest using at least one transmit antenna/element. At least one receive antenna/element that is decoupled from the at least one transmit antenna/element is used to detect a response resulting from transmitting the transmit signal by the at least one transmit antenna/element into the target containing the at least one analyte of interest. In one embodiment, the at least one transmit antenna/element can have a first geometry and the at least one receive antenna/element can have a second geometry that is geometrically different from the first geometry.

Implantable systems are described that include a stimulation device positionable in vivo and configured to communicatively couple to electrodes configured to stimulate or block body tissue and an auxiliary device positionable in vivo and including one or more coils configured to wirelessly couple, in vivo, to the stimulation device and to wirelessly couple to an ex vivo device. The auxiliary device may include a coil driver and a power source controlled by a processor and memory for storing data instructions for the coil driver and for storing data received from the stimulation device. The auxiliary device may also include a radio transceiver and an antenna. The stimulation device may include a housing, a coil, a power source and an integrated circuit for controlling the electrodes. The stimulation device may be coupled to a cuff via a lead and physically coupled to the auxiliary device

An ultrasonic communication system and method provide a networking framework for wearable devices based on ultrasonic communications. The ultrasonic communication system and method incorporate a set of physical, data link, network and application layer functionalities that can flexibly adapt to application and system requirements to efficiently distribute information between ultrasonic wearable devices.

An in-vivo implantable electronic device includes a housing, a power reception coil, and an electronic circuit. The housing is formed of a biocompatible material and forms an internal space sealed. The power reception coil is disposed in the internal space of the housing and receives power by interacting with an electromagnetic field formed by an external electric field or magnetic field, or transmits an electromagnetic wave to the outside. The electronic circuit is disposed in the internal space, is connected to the power reception coil, and performs at least processing of an electric signal. The housing includes a first member in a box shape formed of a biocompatible metal material and having an opening, a second member formed of a biocompatible nonmetal material and having a shape that closes the opening, a packing in an annular shape disposed between the first member and the second member.

An in-vivo implantable medical device includes a housing, an electronic circuit component, a power reception coil, and a magnetic material. The housing is formed of a biocompatible material and forms an internal space. The electronic circuit component is disposed in the internal space. The power reception coil is disposed in the internal space, interacts with an external electromagnetic field to form an electromagnetic resonance field to receive power. At least part of a region of the housing in which the electromagnetic resonance field is formed is formed of a biocompatible nonmetal material.

An acoustic device for spirometric measurement is provided. The acoustic device includes an inlet conduit configured to receive an airflow and a central cavity in communication with the inlet conduit. The central cavity includes a channel configured to guide at least a portion of the airflow into a vorticial flow about a central axis of the central cavity. The acoustic device further includes an outlet conduit configured to receive at least a portion of the vorticial flow and transduce at least a portion of kinetic energy of the vorticial flow into an acoustic emission. A frequency of the acoustic emission varies based on a rate of the airflow provided to the inlet conduit. In addition, the acoustic device includes a flow controller configured to modify at least a portion of the airflow provided to the inlet conduit.