Patent ID: 9549677
Date: 2017-01-24
CPC Classifications: A61B

Claim:
1. A system, comprising: a body data collection module configured to collect body data comprising a time series of a first body signal of a patient, wherein said first body signal is a cardiac signal or a kinetic signal, a non-transitory computer readable program storage unit encoded with instructions that, when executed by a computer, perform a method, comprising: receiving a said time series of a said first body signal of a patient from said body data collection module, determining at least two sliding adjacent time windows for said time series of said first body signal comprising a foreground window and a background window; extracting at least one first long chain from said foreground window and at least one second long chain from said background window; applying a continuous wavelet transform to each of said long chains, to yield a wavelet transform maximum modulus (WTMM) skeleton for each window; determining a first variance of the WTMM skeleton from said foreground window and a second variance of the WTMM skeleton from said background window; generating a stepwise approximation of changes in said variance; determining a seizure onset in response to a determination that an output of the stepwise approximation of changes in said first variance has reached an onset threshold; and determining a seizure termination in response to a determination that an output of the stepwise approximation of changes in said second variance has reached a termination threshold; and an implantable medical device comprising an electrical signal generator, a lead assembly attached at a first end to said electrical signal generator, and an electrode assembly attached to a second end of said lead assembly, wherein said electrode assembly is configured for surgical coupling to a cranial nerve of said patient, wherein said implantable medical device is configured to deliver an electrical signal for treating said seizure at a particular time, wherein said particular time is based upon said determination of said seizure onset, wherein said seizure onset is determined faster than a seizure onset determined by a validated algorithm.