DATA COMMUNICATION SYSTEM FOR CONTROL OF TRANSCUTANEOUS ENERGY TRANSMISSION TO AN IMPLANTABLE MEDICAL DEVICE

摘要

An implantable device with a data communication system for control of transcutaneous energy transmission to the implantable medical device, the implantable medical device having rechargeable batteries and a single coil that is employed both for energy transmission and data telemetry. Control circuitry in the implantable device senses battery voltage and current through the battery, encodes those values by use of a mulitplexer, and transmits the sened and encoded values through the coil to an external energy transmission device. The external device includes a coil that is electromagnetically coupled to the coil in the implantable device for receiving the encoded signals and for transmitting energy to the implantable device. The external device decodes the transmitted values and transmits those to a controller for controlling energy transmission.