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Catheter Related Problems in Pediatric Oncology Treatment: A Technical Investigation Performed at Uppsala Akademsika Sjukhus
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Applied Materials Sciences.
2016 (English)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

In this project, problems related to loss of free flow in central venous catheter and implanted subcutaneous ports have been investigated. The catheters investigated in this project are intended for children with cancer diseases. The initial hypothesis was that the length, radius and curvature of the catheter would affect the flow. Two other things that can have a negative impact on the flow are if the catheter is squashed or kinked. Experiments and simulations have been performed in order to test the hypothesis and investigate how a deformation of the catheter affects the flow.

The results from the experiments and simulations show that the length and radius of the catheter have major impact on the pressure drop, and hence the flow. The curvature of the catheter has less impact on the flow as long as the catheter is not kinked. Experiments with squashed catheters show a decrease in outlet pressure with a decrease of the catheter lumen.

Abstract [sv]

Denna projektrapport ämnar undersöka problem relaterade till fritt flöde i centrala venkatetrar och inopererade subkutana portar. Katetrarna som testats i detta projekt är till för barn med cancersjukdomar. Den ursprungliga hypotesen var att längden, radien och krökningen hos katetern påverkar flödet. Ytterligare två saker som skulle kunna ha negativ effekt på flödet är om katetern är klämd eller veckad. För att testa hypotesen om hur deformationer av katetern påverkar flödet har experiment och simuleringar utförts.

Resultaten från experiment och simuleringar visar att kateterns längd och radie har störst effekt på tryckfallet och därmed flödet. Krökningen på katetern har mindre betydelse, så länge katetern inte är veckad. Experiment med klämd kateter visar att utloppstrycket minskar med minskad kateterlumen.

Place, publisher, year, edition, pages
2016. , 30 p.
UPTEC F, ISSN 1401-5757 ; 16022
Keyword [en]
CVC, SVP, Catheter, Catheter Related Problems, Pediatric Oncology, Fluid Dynamics
National Category
Other Medical Engineering
URN: urn:nbn:se:uu:diva-297294OAI: diva2:941467
External cooperation
CTMH (Center for Technology in Medicine and Health)
Educational program
Master Programme in Engineering Physics
Available from: 2016-06-22 Created: 2016-06-22 Last updated: 2016-06-22Bibliographically approved

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