90 likes | 245 Views
Las Vegas, NV 4-Dec-10. The Benefits of Tight Contact Spacing: Computational Model on Avoiding Stimulation Gaps. Emarit Ranu MSEE MSBS, Ewan Gillespie MBA, Kerry Bradley MS Boston Scientific Neuromodulation Valencia, CA USA. Activating Function: Contact Distance. (mV/cm 2 ).
E N D
Las Vegas, NV4-Dec-10 The Benefits of Tight Contact Spacing: Computational Model on Avoiding Stimulation Gaps Emarit Ranu MSEE MSBS, Ewan Gillespie MBA, Kerry Bradley MS Boston Scientific NeuromodulationValencia, CAUSA
Activating Function: Contact Distance (mV/cm2) • Maps the change in potential on the nerve. • A function of position relative to electrode. • Shows the level depolarization and hyperpolarization. • Any depolarization above threshold causes neurons to fire. Modeling: E. Ranu. Modeling based on: Rattay, F, “Analysis of models for extracellular fiber stimulation,” IEEE Trans Biomed Eng., Jul;36(7):676-82, 1989.
Activating Function: Contact Distance (mV/cm2) • Maps the change in potential on the nerve. • A function of position relative to electrode. • Shows the level depolarization and hyperpolarization. • Any depolarization above threshold causes neurons to fire. Modeling: E. Ranu. Modeling based on: Rattay, F, “Analysis of models for extracellular fiber stimulation,” IEEE Trans Biomed Eng., Jul;36(7):676-82, 1989.
Activating Function: Contact Distance (mV/cm2) • Maps the change in potential on the nerve. • A function of position relative to electrode. • Shows the level depolarization and hyperpolarization. • Any depolarization above threshold causes neurons to fire. Modeling: E. Ranu. Modeling based on: Rattay, F, “Analysis of models for extracellular fiber stimulation,” IEEE Trans Biomed Eng., Jul;36(7):676-82, 1989.
Activating Function: Contact Distance (mV/cm2) • Maps the change in potential on the nerve. • A function of position relative to electrode. • Shows the level depolarization and hyperpolarization. • Any depolarization above threshold causes neurons to fire. Modeling: E. Ranu. Modeling based on: Rattay, F, “Analysis of models for extracellular fiber stimulation,” IEEE Trans Biomed Eng., Jul;36(7):676-82, 1989.
Activating Function: Contact Distance (mV/cm2) • Maps the change in potential on the nerve. • A function of position relative to electrode. • Shows the level depolarization and hyperpolarization. • Any depolarization above threshold causes neurons to fire. Modeling: E. Ranu. Modeling based on: Rattay, F, “Analysis of models for extracellular fiber stimulation,” IEEE Trans Biomed Eng., Jul;36(7):676-82, 1989.
Tight Contact Spacing: Rolling Cathodes Modeling: E. Ranu. Modeling based on: Rattay, F, “Analysis of models for extracellular fiber stimulation,” IEEE Trans Biomed Eng., Jul;36(7):676-82, 1989.
Wide Contact Spacing: Rolling Cathodes Modeling: E. Ranu. Modeling based on: Rattay, F, “Analysis of models for extracellular fiber stimulation,” IEEE Trans Biomed Eng., Jul;36(7):676-82, 1989.
The Benefits of Tight Contact Spacing WideDiscontinuities TightContinuous Modeling: E. Ranu. Modeling based on: Rattay, F, “Analysis of models for extracellular fiber stimulation,” IEEE Trans Biomed Eng., Jul;36(7):676-82, 1989.