AI Article Synopsis
- A new fiber optic motion sensor has been created to track the movement and direction of a ferrous bead as it moves through a sensor, specifically within a colonic lumen.
- Integrating these sensors into existing fiber optic manometry catheters allows for concurrent measurement of muscle contractions and the motion of the beads without the need for x-ray imaging methods.
- Testing has been conducted on the sensor using excised rabbit colon sections, which demonstrates its practical application in monitoring gastrointestinal activity.
Article Abstract
A fibre optic motion sensor has been developed for monitoring the proximity and direction of motion of a ferrous bead travelling axial to the sensor. By integrating an array of these sensors into our previously developed fibre optic manometry catheters we demonstrate simultaneous detection of peristaltic muscular activity and the associated motion of ferrous beads through a colonic lumen. This allows the motion of solid content to be temporally and spatially related to pressure variations generated by peristaltic contractions without resorting to videoflouroscopy to track the motion of a radio opaque bolus. The composite catheter has been tested in an in-vitro animal preparation consisting of excised sections of rabbit colon. Cut-away image of the fibre optic motion sensor showing the location of the fibre Bragg gratings and the rare earth magnet.
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| http://dx.doi.org/10.1002/jbio.201500187 | DOI Listing |
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