Design World December 2021

Page 56

CAE Solutions

Using simulation to ensure multimode pacemakers synchronize communications Dixita Patel

Figure 1. Multinode LCP system with two implanted capsules.

Recent advances for pacemaker technology include improved electronics and smaller batteries, making the development of leadless cardiac pacemakers (LCPs) possible. An LCP is a self-contained (capsulelike) generator and electrode system that eliminates the need for pocket or transvenous leads that o en cause malfunctions. The current LCPs on the market pace at a single location of the heart, but for patients who require more than single-chamber stimulation, a multinode LCP system (Figure 1) can be used. Multinode LCP systems require synchronization between all of the implanted devices to function properly. However, the standard communication techniques used may 54

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The heart figure has been modified and reprinted by permission of Pearson Education, Inc., New York, New York. be unsuitable due to constraints in terms of power consumption and size. To help make the system and communication more efficient, researchers at MicroPort CRM are using simulation to investigate these design challenges using galvanic intrabody communication (IBC). IBC provides a power-optimized solution to facilitate communication between devices, which in turn helps to synchronize multinode LCP systems. DESIGN WORLD

11/30/21 2:52 PM


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