1. Catheter Design Cynthia Harmon Jarntip Pitayagulsarn
Advisor: Ted Larson
February

2. Project Definition
Objective: Determine a new design of a catheter that will increase control and maneuvering
Main Issues: Decrease use of vessels walls, increase speed of insertion, efficiently moving the device through the body

3. Arteries to Aneurysms
Insertion in the femoral artery leads up to the carotid artery
Three main parts of the carotid artery: common, internal, and external
Extreme degree of branching and curving

4. Arteries to Aneurysms continued
Carotid artery helps lead to aneurysm
Forms bubble in vessel
Blood is blocked from vessel with embolization and coil.
Catheter procedure used for embolization and coils

5. Current Status Prove using stitches will: reduce effects of drag
induce curving
increase travel

6. Key Issues Stitches can not catch on vessel walls Length of stitching
Biocompatibility
Levitation of catheter in artery
Configuration
Control of rotation
Keeping catheter in laminar profile

7. Future Work
Determine stitching to avoid catching on vessel wall through fluid dynamics.
Illustrate the effects of stitching on the flow and curvature of the catheter.

8. References
Kerber, C. W., Heilman, C.B. “Flow Dynamics in the Human Carotid Artery: I. Preliminary Observations Using a Transport Elastic Model.” American Journal of Neuroradiology. Jan/Feb 1992, Vol 13, No
Griffing, David, f. The Dynamics of Sports. Dalog Company: Oxford, Ohio, 1987.
Kuethe, A. M., Chuen-Yen, C. Foundations of Aerodynamics. Wuinn-Woodbine, Inc: Phoenix, Az
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