Abstract: In some embodiments, an apparatus includes an antenna, an energy storage device, a receiver, and an indicator assembly. The receiver may be coupled to the antenna and the energy storage device. The receiver may be configured to receive wireless energy via the antenna such that an energy storage level of the energy storage device is increased. The indicator assembly may be coupled to the receiver and may be configured, in response to the receiver receiving the wireless energy, to provide an indication based, at least in part, on a characteristic of the wireless energy.

Abstract: Systems for detecting contact between an electrode and a patient's skin using one or more contact detection schemes are provided. An example system can include an electrode assembly comprising at least one electrode configured to be disposed substantially proximate to the patient's skin and configured to at least one of sense an ECG signal of the patient and provide one or more therapeutic pulses to the patient, one or more sensors disposed on the electrode assembly and isolated from the electrode, the sensors configured to measure one or more properties to determine contact between the electrode and the patient's skin, and a controller configured to receive data representing the measured one or more properties and determine, based at least in part on the received data, whether the electrode is in contact with the patient's skin. The sensors can include temperature, impedance, capacitance, optical, and other similar sensors.

Abstract: In some embodiments, a transmitter has a first mode and a second mode. The transmitter is configured to repeatedly send discrete first wireless signals carrying transmitter identification information uniquely associated with the transmitter in the first mode and to send a second wireless signal carrying the transmitter identification information in the second mode. A receiver is configured to receive a wireless signal of the first wireless signals such that the receiver is activated by the wireless signal of the first wireless signal and, in response to receiving the wireless signal of the first wireless signals, to send a third wireless signal carrying the transmitter identification information to the transmitter. The transmitter is configured to transition from the first mode to the second mode in response to receiving the third wireless signal and determining that the third wireless signal includes the transmitter identification information uniquely associated with the transmitter.

Abstract: Systems for detecting contact between an electrode and a patient's skin using one or more contact detection schemes are provided. An example system can include an electrode assembly comprising at least one electrode configured to be disposed substantially proximate to the patient's skin and configured to at least one of sense an ECG signal of the patient and provide one or more therapeutic pulses to the patient, one or more sensors disposed on the electrode assembly and isolated from the electrode, the sensors configured to measure one or more properties to determine contact between the electrode and the patient's skin, and a controller configured to receive data representing the measured one or more properties and determine, based at least in part on the received data, whether the electrode is in contact with the patient's skin. The sensors can include temperature, impedance, capacitance, optical, and other similar sensors.

Abstract: In some embodiments, an apparatus includes an antenna, an energy storage device, a receiver, and an indicator assembly. The receiver may be coupled to the antenna and the energy storage device. The receiver may be configured to receive wireless energy via the antenna such that an energy storage level of the energy storage device is increased. The indicator assembly may be coupled to the receiver and may be configured, in response to the receiver receiving the wireless energy, to provide an indication based, at least in part, on a characteristic of the wireless energy.

Abstract: In some embodiments, an apparatus includes an antenna, an energy storage device, a receiver, and an indicator assembly. The receiver may be coupled to the antenna and the energy storage device. The receiver may be configured to receive wireless energy via the antenna such that an energy storage level of the energy storage device is increased. The indicator assembly may be coupled to the receiver and may be configured, in response to the receiver receiving the wireless energy, to provide an indication based, at least in part, on a characteristic of the wireless energy.

Abstract: In some embodiments, a transmitter has a first mode and a second mode. The transmitter is configured to repeatedly send discrete first wireless signals carrying transmitter identification information uniquely associated with the transmitter in the first mode and to send a second wireless signal carrying the transmitter identification information in the second mode. A receiver is configured to receive a wireless signal of the first wireless signals such that the receiver is activated by the wireless signal of the first wireless signal and, in response to receiving the wireless signal of the first wireless signals, to send a third wireless signal carrying the transmitter identification information to the transmitter. The transmitter is configured to transition from the first mode to the second mode in response to receiving the third wireless signal and determining that the third wireless signal includes the transmitter identification information uniquely associated with the transmitter.

Abstract: In some embodiments, a transmitter has a first mode and a second mode. The transmitter is configured to repeatedly send discrete first wireless signals carrying transmitter identification information uniquely associated with the transmitter in the first mode and to send a second wireless signal carrying the transmitter identification information in the second mode. A receiver is configured to receive a wireless signal of the first wireless signals such that the receiver is activated by the wireless signal of the first wireless signal and, in response to receiving the wireless signal of the first wireless signals, to send a third wireless signal carrying the transmitter identification information to the transmitter. The transmitter is configured to transition from the first mode to the second mode in response to receiving the third wireless signal and determining that the third wireless signal includes the transmitter identification information uniquely associated with the transmitter.

Abstract: In some embodiments, an apparatus includes an antenna, an energy storage device, a receiver, and an indicator assembly. The receiver may be coupled to the antenna and the energy storage device. The receiver may be configured to receive wireless energy via the antenna such that an energy storage level of the energy storage device is increased. The indicator assembly may be coupled to the receiver and may be configured, in response to the receiver receiving the wireless energy, to provide an indication based, at least in part, on a characteristic of the wireless energy.

Abstract: In some embodiments, an apparatus includes an antenna, an energy storage device, a receiver, and an indicator assembly. The receiver may be coupled to the antenna and the energy storage device. The receiver may be configured to receive wireless energy via the antenna such that an energy storage level of the energy storage device is increased. The indicator assembly may be coupled to the receiver and may be configured, in response to the receiver receiving the wireless energy, to provide an indication based, at least in part, on a characteristic of the wireless energy.

Abstract: In some embodiments, a transmitter has a first mode and a second mode. The transmitter is configured to repeatedly send discrete first wireless signals carrying transmitter identification information uniquely associated with the transmitter in the first mode and to send a second wireless signal carrying the transmitter identification information in the second mode. A receiver is configured to receive a wireless signal of the first wireless signals such that the receiver is activated by the wireless signal of the first wireless signal and, in response to receiving the wireless signal of the first wireless signals, to send a third wireless signal carrying the transmitter identification information to the transmitter. The transmitter is configured to transition from the first mode to the second mode in response to receiving the third wireless signal and determining that the third wireless signal includes the transmitter identification information uniquely associated with the transmitter.

Abstract: In some embodiments, a transmitter has a first mode and a second mode. The transmitter is configured to repeatedly send discrete first wireless signals carrying transmitter identification information uniquely associated with the transmitter in the first mode and to send a second wireless signal carrying the transmitter identification information in the second mode. A receiver is configured to receive a wireless signal of the first wireless signals such that the receiver is activated by the wireless signal of the first wireless signal and, in response to receiving the wireless signal of the first wireless signals, to send a third wireless signal carrying the transmitter identification information to the transmitter. The transmitter is configured to transition from the first mode to the second mode in response to receiving the third wireless signal and determining that the third wireless signal includes the transmitter identification information uniquely associated with the transmitter.

Abstract: In some embodiments, an apparatus includes an antenna, an energy storage device, a receiver, and an indicator assembly. The receiver may be coupled to the antenna and the energy storage device. The receiver may be configured to receive wireless energy via the antenna such that an energy storage level of the energy storage device is increased. The indicator assembly may be coupled to the receiver and may be configured, in response to the receiver receiving the wireless energy, to provide an indication based, at least in part, on a characteristic of the wireless energy.

Abstract: In some embodiments, a transmitter has a first mode and a second mode. The transmitter is configured to repeatedly send discrete first wireless signals carrying transmitter identification information uniquely associated with the transmitter in the first mode and to send a second wireless signal carrying the transmitter identification information in the second mode. A receiver is configured to receive a wireless signal of the first wireless signals such that the receiver is activated by the wireless signal of the first wireless signal and, in response to receiving the wireless signal of the first wireless signals, to send a third wireless signal carrying the transmitter identification information to the transmitter. The transmitter is configured to transition from the first mode to the second mode in response to receiving the third wireless signal and determining that the third wireless signal includes the transmitter identification information uniquely associated with the transmitter.

Abstract: Systems for detecting contact between an electrode and a patient's skin using one or more contact detection schemes are provided. An example system can include an electrode assembly comprising at least one electrode configured to be disposed substantially proximate to the patient's skin and configured to at least one of sense an ECG signal of the patient and provide one or more therapeutic pulses to the patient, one or more sensors disposed on the electrode assembly and isolated from the electrode, the sensors configured to measure one or more properties to determine contact between the electrode and the patient's skin, and a controller configured to receive data representing the measured one or more properties and determine, based at least in part on the received data, whether the electrode is in contact with the patient's skin. The sensors can include temperature, impedance, capacitance, optical, and other similar sensors.