Design limitations of using magnetic inductive coupling to verify nasogastric tube placement
Citation:
Silva, Nuno P. and Elahi, Adnan and O'Halloran, Martin and O'Keeffe, Derek T. and O'Loughlin, Declan, Design limitations of using magnetic inductive coupling to verify nasogastric tube placement, 17th European Conference on Antennas and Propagation, Florence, Italy, 26-31 March 2023, 2023Abstract:
Nasogastric tube insertion is a standard procedure
but with potentially fatal consequences if misplaced. Many
bedside methods have been proposed for identifying misplace-
ment including magnetic inductive coupling. This study aims to
identify the coil design limitations for nasogastric tube placement
confirmation using magnetic inductive coupling. The fundamental
limits on the coil sizes and detection distances are identified
based on the anatomical understanding. Candidate designs are
simulated and fabricated, and key parameters such as coil
radius and penetration depth are examined. Specifically, the
mutual inductance and coupling factor between the coils in
the candidate designs are both calculated and measured with
respected to distance. This work highlights that a small coil of up
to 3 mm in diameter could be integrated into a nasogastric tube
without impairing clinical function. These preliminary results
suggest that magnetic inductive coupling is a promising approach
for nasogastric tube localisation, however, optimisation of the
detector coil size could improve localisation performance.
Author's Homepage:
http://people.tcd.ie/oloughdeDescription:
PUBLISHEDFlorence, Italy
Author: O'Loughlin, Declan
Other Titles:
17th European Conference on Antennas and PropagationType of material:
Conference PaperAvailability:
Full text availableKeywords:
electromagnetic coupling, electromagnetic induction, inductive power transmission, medical devices and systems, mutual couplingSubject (TCD):
Next Generation Medical DevicesMetadata
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