Title :
Characterization of Flow in Intravenous Catheters
Author :
Philip, Beverly K. ; Philip, James H.
Author_Institution :
Bioengineering Laboratory, Department of Anesthesia, Brigham and Women´´s Hospital, Harvard Medical School
fDate :
5/1/1986 12:00:00 AM
Abstract :
The pressure-flow (P-F) relationship in intravenous catheters is shown to be represented by the predictive model P = RLF + RTF2. The pressure loss due to F, calculated from experimental data, was found to equal the expected Poiseuille laminar flow loss. Pressure loss due to F2 was found to be the sum of turbulent P losses due to entrance length flow disturbance, kinetic energy at the outflow, and minor shape change losses. Analysis of the flow capabilities of intravenous catheters can be used to evaluate suitability for specific intravenous infusion needs.
Keywords :
Catheters; Immune system; Kinetic energy; Needles; Predictive models; Shafts; Shape; Surgery; System performance; Testing; Catheters, Indwelling; Humans; Infusions, Parenteral; Mathematics; Pressure;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
DOI :
10.1109/TBME.1986.325743
