Predicting air-balloon and water-filled infant catheter frequency responses

Craig G. Hartford; Johan M. Van Schalkwyk; Geoffrey G. Rogers; Martin J. Turner

doi:10.1109/51.585514

Predicting air-balloon and water-filled infant catheter frequency responses

Craig G. Hartford^*, Johan M. Van Schalkwyk, Geoffrey G. Rogers, Martin J. Turner

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

The frequency responses of nasogastric water-filled catheters (W-FC) and air-balloon catheters (A-BC) were determined with a sine wave generator, to test the validity of the assumption that these frequency responses fit a second-oder system. A-BC and W-FC frequency responses do not adequately fit second-order systems. Second-order fitted curve:original recorded curve (SOFC:ORC) deviations are larger in W-FC than in A-BC, and in large French Gauge-sized catheters. The sine-wave generator is best used to measure in vitro frequency responses of compliant fluid-filled catheters rather than the square-wave response technique.

Original language	English
Pages (from-to)	27-33
Number of pages	7
Journal	IEEE Engineering in Medicine and Biology Magazine
Volume	16
Issue number	3
DOIs	https://doi.org/10.1109/51.585514
Publication status	Published - May 1997
Externally published	Yes

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title = "Predicting air-balloon and water-filled infant catheter frequency responses",

abstract = "The frequency responses of nasogastric water-filled catheters (W-FC) and air-balloon catheters (A-BC) were determined with a sine wave generator, to test the validity of the assumption that these frequency responses fit a second-oder system. A-BC and W-FC frequency responses do not adequately fit second-order systems. Second-order fitted curve:original recorded curve (SOFC:ORC) deviations are larger in W-FC than in A-BC, and in large French Gauge-sized catheters. The sine-wave generator is best used to measure in vitro frequency responses of compliant fluid-filled catheters rather than the square-wave response technique.",

author = "Hartford, {Craig G.} and {Van Schalkwyk}, {Johan M.} and Rogers, {Geoffrey G.} and Turner, {Martin J.}",

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AU - Van Schalkwyk, Johan M.

AU - Rogers, Geoffrey G.

AU - Turner, Martin J.

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AB - The frequency responses of nasogastric water-filled catheters (W-FC) and air-balloon catheters (A-BC) were determined with a sine wave generator, to test the validity of the assumption that these frequency responses fit a second-oder system. A-BC and W-FC frequency responses do not adequately fit second-order systems. Second-order fitted curve:original recorded curve (SOFC:ORC) deviations are larger in W-FC than in A-BC, and in large French Gauge-sized catheters. The sine-wave generator is best used to measure in vitro frequency responses of compliant fluid-filled catheters rather than the square-wave response technique.

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Predicting air-balloon and water-filled infant catheter frequency responses

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