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Capsule endoscope NORIKA system.

Uehara¹, Hoshina

¹RF System Lab Nagano Japan.

Minimally Invasive Therapy & Allied Technologies : MITAT : Official Journal of the Society for Minimally Invasive Therapy

|June 7, 2006

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The NORIKA system is a novel battery-free micro capsule endoscope. Wireless power and external processing eliminate battery risks, enabling longer, safer internal examinations.

Area of Science:

Medical Devices
Biomedical Engineering
Wireless Power Transfer

Background:

Traditional capsule endoscopes rely on batteries, posing risks of toxic leakage and limited operational duration.
High power consumption of Charge Coupled Device (CCD) sensors in capsule endoscopes necessitates innovative power management solutions.

Purpose of the Study:

To develop a battery-free micro capsule endoscope (NORIKA system) for safer and longer internal examinations.
To address the power consumption challenge of CCD sensors by relocating the Digital Signal Processor (DSP) externally.

Main Methods:

Wireless power transmission using microwave technology and a coil-embedded vest.
External processing of CCD sensor data via a Digital Signal Processor (DSP) to reduce capsule power draw.

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Integrated camera focusing, adjustable LED illumination, and a capsule rotation mechanism for detailed imaging.

Main Results:

The NORIKA system successfully demonstrates wireless powering, eliminating battery-related risks and toxic substance concerns.
External DSP integration allows for stable, continuous power supply, enabling extended operational duration compared to battery-powered devices.
Independent control of focus, four LED lamps, and capsule rotation ensures clear imaging in internal body environments.

Conclusions:

The NORIKA system offers a safer, longer-lasting alternative to traditional capsule endoscopes.
This battery-free technology has the potential to become a valuable diagnostic tool in medical imaging.
Further development could enhance its utility for comprehensive internal examinations.