Patent ID: 7925329
Filing Date: 2011-04-12
Classification: A61B,A61N

Abstract:
1. A method of an implantable Doppler tomography system for describing movement of tissue locations in a subject, the method comprising: (a) transmitting electromagnetic energy from a transmitter configured on a first implantable lead of the implantable Doppler tomography system, wherein the transmitter is stably associated with a first tissue location in the subject when the first implantable lead is placed along the first tissue location; (b) directly detecting the electromagnetic energy at a sensor configured on a second implantable lead of the implantable Doppler tomography system, wherein the sensor is stably associated with a second tissue location in the subject when the second implantable lead is placed along the second tissue location; (c) determining a Doppler shift in the electromagnetic energy received at the sensor using a signal processing element of the implantable Doppler tomography system; and (d) providing data associated with a movement of the second tissue location relative to the first tissue location based on the Doppler shift in the electromagnetic energy received at the sensor.