College - Author 1

College of Engineering

Department - Author 1

Mechanical Engineering Department

Degree Name - Author 1

BS in Mechanical Engineering

College - Author 2

College of Engineering

Department - Author 2

Mechanical Engineering Department

Degree - Author 2

BS in Mechanical Engineering



Primary Advisor

John Fabijanic, College of Engineering, Mechanical Engineering Department


When gaining access to a vein or organ for the purpose of ablation or other reasons, the common procedural method of entry is to use the Seldinger technique. This has been the standard entry procedure since its introduction in 1953, and the technique has not been modified during this time. While effective, it is prone to complication as it relies solely on the operator's precision and experience. It is our task and goal to develop a modifying kit for this procedure that would aid the operator in this process. It would make use of mapping technology and standard products used in hospitals and Arrhythmia Centers, including ultrasound and magnetic cardiovascular mapping systems, as well as hypodermic needles and catheters. Ultimately this product will focus on minimizing the time, complexity, and overall complications currently associated with this procedure. This report outlines the ideation process and explains how we came to our concept design. Our concept design comprises of two main components— a handle and tunneller. The handle guides and orients the ultrasound catheter. The tunneller will secure the mapping catheter and guide the needle to the desired spot of insertion. Following approval of the concept design and direction, we moved towards 3-D modeling, prototyping, and testing. This led to the final design of the handle, which comprises of a ultrasound head, handle, and Tuohy-Borst mechanism. The tunneller final design consists of a needle insert, needle shaft, and a Touhy-Borst/Luer Lock mechanism. We outline any changes made from concept design to our final design and describe the final assembly of this project along with manufacturing cost and the next steps to get this project into production.