Structure of the jet from a generic catheter tip
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A generic feature of a wide variety of central venous catheters, which are typically located within the superior vena cava (SVC), is a jet from a side hole of the catheter tip. Particle image velocimetry is employed in conjunction with a scaled-up water facility, in order to characterize the structure of the jet as a function of dimensionless hole diameter and jet velocity ratio. Quantitative patterns in the radial and crossflow planes of the catheter-SVC system define the jet evolution. It has distinctive features, relative to the classical jet in a crossflow, which issues from a small opening in a planar surface into a region of large extent.
KeywordsVorticity Particle Image Velocimetry Superior Vena Cava Side Hole Entrain Flow
- Peterson SD, Plesniak MW (2002) Short-hole jet-in-crossflow velocity field and its relationship to film-cooling performance. Exp Fluids 33:889–898Google Scholar
- Trerotola SO (2000) Hemodialysis catheter placement and management. Radiology 215:651–658Google Scholar
- Twardoski ZJ, Moore HL (2001) Side holes at the tip of chronic hemodialysis catheters are harmful. J Vasc Access 2:8–16Google Scholar