The present disclosure provides systems and methods for controlling wireless power transfer systems. A wireless power transfer system includes a transmitter driven by a power source and a transmit controller, wherein the transmitter is configured to control delivery of wireless power, and a receiver inductively coupled to the transmitter, the receiver configured to receive the wireless power from the transmitter and deliver the received wireless power to a load. The receiver includes receiver electronics configured to determine a Thevenin equivalent impedance of the wireless power transfer system, determine a Thevenin equivalent source voltage of the wireless power transfer system, and control, based on the determined Thevenin equivalent impedance and the determined Thevenin equivalent source voltage, an ideal source voltage of the receiver to vary the amount of the wireless power transferred from the transmitter to the receiver.

An external transmitter inductive coil can be provided in, on, or with a belt designed to be placed externally around a part of a body of a patient. An implantable device (such as a VAD or other medical device) that is implanted within the patient's body has associated with a receiver inductive coil that gets implanted within that part of the patient's body along with the device. The externally-located transmitter inductive coil inductively transfers electromagnetic power into that part of the body and thus to the receiver inductive coil. The implanted receiver inductive coil thus wirelessly receives the inductively-transferred electromagnetic power, and operates the implant.

There is provided a method for controlling a flow of fluid and/or other bodily matter in a lumen formed by a tissue wall of a patient's organ. The method comprises gently constricting (i.e., without substantially hampering the blood circulation in the tissue wall) at least one portion of the tissue wall to influence the flow in the lumen, and stimulating the constricted wall portion to cause contraction of the wall portion to further influence the flow in the lumen. The method can be used for restricting or stopping the flow in the lumen, or for actively moving the fluid in the lumen, with a low risk of injuring the organ. Such an organ may be the esophagus, stomach, intestines, urine bladder, urethra, ureter, renal pelvis, aorta, corpus cavernosum, exit veins of erectile tissue, uterine tube, vas deferens or bile duct, or a blood vessel.

A connection system implantable within a living body having an exterior skin includes a male connector and a female connector. The male connector includes a shaft extending along an axis between a proximal end and a distal end, the shaft having an exterior surface surrounding the axis, at least one shaft contact carried on the shaft and exposed at the exterior surface, and a retaining element mounted to the shaft. The female connector includes a structure defining a bore extending along an axis between a proximal end and a distal end, at least one bore contact mounted to the structure and exposed within the bore and a catch element mounted to the structure. The catch and retaining elements allow the shaft to be inserted into the bore to align the contacts. A locking element rotatably locks the shaft in the bore. A method of implanting the system is also provided.

A hand-held dispenser to dispense fluid includes a casing to fit into a hand of a user, a nozzle in the casing to dispense a mist, a fluid reservoir contained in the casing to hold a fluid to be turned into the mist, a filament extension atomizer contained in the casing to generate the mist, an air source contained in the casing to provide air flow to direct the mist to the nozzle, a motor contained in the casing to operate the filament extension atomizer, an actuator positioned on the casing to activate the dispenser, a control circuit contained in the casing to receive a signal from the actuator and to send a signal to the motor to cause the motor to actuate, and a power source contained in the casing to provide power to the motor upon receive a signal from the control circuit.

The present disclosure provides aerosol delivery devices. In an example implementation, an aerosol delivery device comprises an aerosol source member that defines an outer surface and an interior area and includes a substrate material having an aerosol precursor composition associated therewith, a control body having a housing that is configured to receive the aerosol source member, an electrical energy source coupled with the housing, and a heating assembly operatively connected to the electrical energy source. The heating assembly includes a plurality of spikes that may be configured to articulate between a retracted position, in which the plurality of spikes is not in contact with the aerosol source member, and a heating position, in which the plurality of spikes pierces through the outer surface of the substrate material and into a portion of the interior area thereof.

Provided is a wearable, self-contained drug infusion or medical device capable of communicating with a host controller or other external devices via a personal area network (PAN). The medical device utilizes a PAN transceiver for communication with other devices in contact with a user's body, such as a physiological sensor or host controller, by propagating a current across the user's body via capacitive coupling. The wearable nature of the medical device and the low power requirements of the PAN communication system enable the medical device to utilize alternative energy harvesting techniques for powering the device. The medical device preferably utilizes thermal, kinetic and other energy harvesting techniques for capturing energy from the user and the environment during normal use of the medical device. A system power distribution unit is provided for managing the harvested energy and selectively supplying power to the medical device during system operation.

A medical device and a system for medical treatment comprising the medical device are disclosed. The medical device comprises a fluidic conduit and/or is configured to be operatively coupled to a fluidic conduit. The medical device comprises a flow regulator for regulating the flow of a fluid in the fluidic conduit and at least two movable elements, which are passively displaceable as a function of a fluidic pressure change in the fluidic conduit or actively displaceable for regulating the flow of fluid in the fluidic conduit. The medical device further comprises at least one transponder circuit comprising at least one transponder element chosen from a capacitor, an inductor, a resistor, or combinations thereof, being arranged with respect to the movable elements such that the transponder circuit has a capacitance or inductance or resistance or resonant frequency or Q factor, which changes as a function of the displacement of the movable elements. The system further comprises a control device comprising a transceiver, wherein the transceiver is configured to transmit energy to the transponder circuit and to read out the capacitance and/or the inductance and/or the resistance and/or the resonant frequency and/or the Q factor of the transponder circuit, such as to determine with the same transponder circuit whether there is a displacement of any of the movable elements. A foil comprising at least one transponder circuit to be arranged in the medical device is also disclosed.

Devices, systems, and techniques for automatic network configuration based on biometric authentication are described herein. In one example, one or more processors may obtain first biometric data derived from one or more sensor signals generated by one or more sensors of a first device coupled to a user. The one or more processors may obtain second biometric data derived from one or more sensor signals generated by one or more sensors of a second device. The one or more processors may compare the first biometric data and the second biometric data, determine that the second device is coupled to the user based on the comparison, and establish a communication link with the second device based on the determination that the second device is coupled to the user.

The invention generally relates to prefilled disposable medication devices, method of making, and using to store, contain and deliver at least a diluent for allergenic extract and more particularly to a prefilled cartridge containing a diluent for allergenic extract for use with an injection pen for allergy treatments.