Electromagnetic Navigational Sensors

Intricon designs and produces electromagnetic sensors using wire as small as 58 AWG (.00991 mm or .00039 inch) diameter. Shown here, an example of a micro-coil held by a laboratory technician at one of Intricon's global facilities (NASDAQ: IIN)

Electromagnetic navigational sensors are a core technical capability at Intricon. Working with a complete range of ultra-fine wires and ferromagnetic core materials, we use our proprietary modeling and engineering systems to design and produce micro-coils that meet electromagnetic goals such as induction, resistance, sensitivity and localization performance. We also routinely work within size constraints dictated by the design of the medical device, utilizing our capabilities of winding down to 58 AWG wire (.00991 mm or .00039 inches), about one-third the diameter of a human hair. Finished micro-coils often fit through the eye of a needle.

example of electromagnetic twisted pair coiled wiring used in micromedical devices for electrophysiology and more

examples of electromagnetic navigational sensors used in micromedical devices for electrophysiology and more

Bonding the coil wire to slightly larger diameter wire — often a twisted pair that runs the length of the device — provides full-length connectivity. Intricon can also help you assemble the entire device, and many of these programs include embedded ROM chips that calibrate the location of the micro-coil within the finished device so that the device can plug in directly to the navigational systems used by physicians. Today, our electromagnetic navigational sensors are advancing a wide range of clinical applications in tip location sensing such as diagnostic applications, active implants and therapeutic applications such as electrophysiology AF mapping and ablation.