摘要:
A charging system is disclosed. In one embodiment, the system includes a charging unit having a primary coil, and an implantable medical device comprising a secondary coil to receive charge from the primary coil. The implantable medical device further includes a half-wave voltage-doubling rectifier coupled to the secondary coil, a full-wave rectifier coupled to the secondary coil, and a rechargeable power source. Control logic is provided to periodically configure the rechargeable power source to receive charge from a selected one of the voltage-doubling circuit and the full-wave rectifier in a manner that increases rate at which charge is transferred from the secondary coil to the rechargeable power source. The control logic may configure the rechargeable power source to receive charge based on one or more monitored conditions which may include an indication of a current, a voltage, a coupling coefficient, back-scatter, and temperature.
摘要:
An external device (20) includes a mount (22), which is placed in front of a subject's eye. A laser (24) is coupled to the mount (22) and emits radiation (26) that is outside of 380-750 nm. A partially-transparent mirror (23) is coupled to the mount (22). An intraocular device (30) is implanted entirely in the subject's eye, and includes a plurality of stimulating electrodes (38), and an energy receiver (32), which receives the radiation (26) from the laser (24) and generates a voltage drop. A plurality of photosensors (34) detect photons (33) and generate a signal. Driving circuitry (36) is coupled to the energy receiver (32) and to the photosensors (34), and receives the signals from the photosensors (34) and utilizes the voltage drop to drive the electrodes (38) to apply currents to the retina in response to the signals from the photosensors (34). Other embodiments are also described.
摘要:
A medical implant system such a Direct Acoustic Cochlear Stimulation and method for generating a transcutaneous link between an external module and an internal module. A signal is generated in the external module by modulating an input signal using pulse modulation and then further modulating the pulse modulated signal using digital modulation. In the internal module, the received signal is processed using digital demodulation, the digitally demodulated signal being applied to the input of an amplifier to generate a control signal to control an actuator of the implant. A power component may also be extracted from the received signal in the internal module.
摘要:
A system and method for energy transfer between a transmitting unit and a receiving unit, the transmitting unit having a transmitting antenna circuit having a first resonant frequency and a high quality factor.
摘要:
Systems, devices, methods, and compositions are described for providing an actively-controllable disinfecting implantable device configured to, for example, treat or prevent an infection in a biological subject.
摘要:
An implanted coil supplies energy or control signals to, or provides information from, a medical device implanted in a human or animal patient. Preferably, the coil is implanted subcutaneously in the patient at a location suitable for easy access to the coil. The implanted coil is wound from a wire that is formed into a plurality of smaller diameter coils connected in series and positioned perpendicular to the larger implanted coil. Preferably, the wire used to form the implanted coil is a helically- shaped wire that is very resilient, and, thus, capable of handling even extreme movements of a patient in whom it is implanted without the risk of breaking.
摘要:
A coil arrangement supplies energy or control signals to, or provides information from, a medical device implanted in a human or animal patient. The coil arrangement includes an external coil that is larger than an implanted coil so as to reduce the risk of damage to circuitry in an energy transmitter attached to the external coil that results from a low impedance at the external coil when a switch in an over-voltage protection circuit is opened to protect circuitry in a medical device attached to the implanted coil from being damaged by a too high voltage induced across the implanted coil.
摘要:
The present invention relates to a male contraception apparatus for obtaining temporary sterility of a male mammalian individual. The apparatus comprises an implantable restriction device adapted to restrict vas deference in the region downstream the ampulla during a controlled period in order to preventing sperms to reach the urethra. Further, the apparatus comprises a control device for controlling the operation of the restriction device.
摘要:
An accessory (11) for use with an implanted medical device (100, 102) in a mammal body is intended for use externally to said mammal body and is arranged to wirelessly transmit signals to said implanted medical device (100,102). Said signals are sent in order to initiate a backup function or a backup system in said implanted medical device. The signals can be sent to initiate said backup function or backup system to override a built in control and/or powering system of the implanted device (100, 102). Also, the accessory can send said signals as wireless power signals to a receiver (102) for wirelessly receiving power in said implanted medical device, the signal information regarding the backup function being coded into said power signals.
摘要:
The invention relates to an electronic apparatus (100) comprising a charging module(20) for receiving external energy(RF1) and for transferring it to a rechargeable energy storage(10) in a "charging state". Moreover, the apparatus comprises a processing module which can be operated in a working state that is enabled if the charging module(20) is in the charging state and the apparatus is in a standard operating mode. The processing module may for example be a communication module(30) that can communicate wirelessly in its working state. In the standard operating mode, communication with the apparatus (100) is thus only possible if the apparatus (100) is simultaneously charged. The communication module(30) can therefore be completely switched off during the residual time, thus reducing power consumption and avoiding erroneous communication or misuse.