| 摘要 |
Briefly stated, technologies are generally described for tracking a location and an orientation of a medical tool inside a body. The method may include positioning multiple light emitting diodes (LEDs) in infrared (IR) wavelength range near a tip of the medical tool. Upon insertion of the medical tool inside the body, the LEDs may emit IR light in unique patterns, which may be detectable through bodily tissue. The emitted light patterns may be detected through an IR detector device external to the body. One or more IR markers may be placed near the body to serve as reference points and the IR detector may determine the location and the orientation of the medical tool inside the body based on the detected light patterns. The location and the orientation of the medical tool inside the body may be displayed on a monitor.
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