Catheter Design Cynthia Harmon Jarntip Pitayagulsarn

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Presentation transcript:

Catheter Design Cynthia Harmon Jarntip Pitayagulsarn Advisor: Ted Larson February 18. 2002

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

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

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

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

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

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.

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 1. 173-180. 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. 1998. http://www.mayo.edu/ISUIA/aneur.jpg. http://illuminations.nctm.org/imath/912/cardiac/student/images/catheter.jpg. www.psrc.usm.edu/italian/ baseball.jpg.