Implementations of the present disclosure are directed to an injection device (102) including a medicament reservoir (103) configured to store a medicament to be expelled by the injection device (102), an acoustic source (122a, 122b, 122c, 122d, 200, 300, 400) configured to generate an acoustic signal including information indicative of an amount of the medicament stored in the medicament reservoir (103), the acoustic signal being transmitted to an external device (104) configured to process the acoustic signal and to extract injection device data.

A charging system for an Implantable Medical Device (IMD) is disclosed having a charging coil and one or more sense coils. The charging coil and one or more sense coils are preferably housed in a charging coil assembly coupled to an electronics module by a cable. The charging coil is preferably a wire winding, while the one or more sense coils are concentric with the charging coil and preferably formed in one or more traces of a circuit board. The magnitude of one or more voltages induced on the one or more sense coils can be measured to determine the position of the charging coil relative to the IMD, and in particular whether the charging coil is (i) centered, (ii) not centered but not misaligned, or (iii) misaligned, with respect to the IMD being charged, which three conditions sequentially comprise lower coupling between the charging coil and the IMD.

A charging system for an Implantable Medical Device (IMD) is disclosed having a charging coil and one or more sense coils. The charging coil and one or more sense coils are preferably housed in a charging coil assembly coupled to an electronics module by a cable. The charging coil is preferably a wire winding, while the one or more sense coils are concentric with the charging coil and preferably formed in one or more traces of a circuit board. One or more voltages induced on the one or more sense coils can be used to determine whether the charging coil is (i) centered, (ii) not centered but not misaligned, or (iii) misaligned, with respect to the IMD being charged, which three conditions sequentially comprise lower coupling between the charging coil and the IMD. A charging algorithm is also disclosed that control charging dependent on these conditions.

A wireless power system capable of transmitting power through the skin over distances ranging from a few inches to several feet includes an external transmitting coil assembly and a receiving coil assembly. A transmitting resonant coil and a receiving resonant coil are constructed as to have closely matched or identical resonant frequencies so that the magnetic field produced by the transmitting resonant coil is able to cause the receiving resonant coil to resonate strongly also, even when the distance between the two resonant coils greatly exceeds the largest dimension of either coil. The receiving resonant coil then creates its own local time varying magnetic field, which inductively produces a voltage to provide power to an active implantable medical device or implantable rechargeable battery.

A power supply unit includes: a power supply configured to discharge power to a load for generating an aerosol from an aerosol generation source; a charger configured to convert inputted power into charging power; a temperature measuring unit configured to measure a temperature of the power supply; and a charging controller configured to perform a first control for stopping the charger from supplying the charging power to the power supply and a second control for causing the charger to supply the charging power to the power supply, the charging controller setting a duty ratio to a value greater than 0 and smaller than 100 in a case where the temperature of the power supply is within a predetermined range, and the duty ratio being obtained by dividing a time during which the charging controller performs the first control by a unit time.

A charging and data transfer method for use in a pressure support system adapted to provide a regimen of respiratory therapy to a patient includes establishing a near-field wireless coupling interface between a pressure generating device base unit of the pressure support system and a wireless peripheral device (32) of the pressure support system, transferring energy from the pressure generating device base unit to the wireless peripheral device over the near-field wireless coupling interface and using the transferred energy in the wireless peripheral device to charge an energy storage device (72) of the wireless peripheral device, and transferring pairing information between the pressure generating device base unit and the wireless peripheral device over the near-field wireless coupling interface.

There is provided a method for treating a male impotent patient comprising stimulating at least one portion of the patient's normal penile tissue or the prolongation thereof to at least restrict the blood flow leaving the penis to achieve erection. To improve the erection effect the method further comprises gently constricting the penile portion or the prolongation thereof to restrict the venous blood flow in the penile portion, and then stimulating the constricted penile portion to cause contraction of the penile portion to at least further restrict the blood flow leaving the penis to achieve erection.

The invention relates to an inhaler, in particular an electronic cigarette product, comprising at least one evaporator unit with at least one electric evaporator for evaporating liquid supplied to the evaporator and comprising an electronic controller for controlling and/or regulating the at least one evaporator unit. The inhaler has at least one replaceable cartridge, wherein the cartridge has the evaporator unit and a liquid tank which is connected or can be connected to the evaporator unit.

Devices, and methods for generating variable inhalable products (e.g., variable density, phase, and size products) are provided. Methods for treating or preventing a disorder in a subject using variable products generated by the devices are also provided herein. Additionally, inhalers and breathing systems comprising the devices are provided.

Methods and systems for delivering drug particles to a target site are disclosed. An example method for implementing the subject matter described herein includes applying a drug delivery patch to a target site. The drug delivery patch can include a substrate, an electrode integrated with the substrate, and a fluid in the substrate having drug particles suspended in the fluid. The method further includes transmitting a signal to the drug delivery patch to power the drug delivery patch by inductive coupling. Powering the drug delivery patch causes the electrode in the drug delivery patch to motivate the drug particles towards a target site of the drug delivery patch.