An improved artificial spinal implant system for replacing a disc or vertebral body that provides adjustability in height, and provides support and stability of the spine with proper lordosis or kyphosis, osseous-integration of the implant, and motion preservation of the adjacent vertebrae while preserving the space. Evidence of a rhythm breaking point is obtained in response to sensing a cardiac event having a morphology corresponding to a supraventricular beat. The sequential scheduler reads one frame per a visit to each frame buffer at a speed lower than a communication speed of the communication device.