Guide Wire Torque Device for Vascular Intervention Cody Fannin, Morgan Lennon, James Oosten, Samik Patel, Andrew Sassani, and Eric Zhang Advisors: Dr. Rabih Chaer and Dr. Jason Wagner Addressing the Problem Previous Design The Current Design The Current Design During vascular surgery, a wire is navigated through veins to a point of interest and is used as the access port for surgical tools. This wire is manually guided into position by a small device that allows the surgeon to direct the wire within the patient’s vascular network. Current guide wire torque devices must travel the entire length of the wire several times throughout a procedure. This increases the risk of accidental movement of the wire, which can increase operation times and chances of patient injury. Snap Fit Allows device to clip on and off mid-wire Difficult to unclip while gloved Ease of Use One-handed operation Quick wire attachment and detachment Simple to connect at any point along wire Ribbed texture for superior grip Innovative Slider Design Sloped track to pinch wires of varying diameters Slider rotated for quick wire insertion Exposed groove easily guides wire into place Existing Devices Sliding Lock Sloped track allows new slider to pinch wire at different points based on diameter Internal extrusions give path for device to slide without falling off (a) (b) (c) Design Changes Figure: Existing Devices used in Vascular Intervention (a) Pin Vise (traditional), (b) H20 Torq TM, (c) SeaDragon TM Snap-fit elimination More effective locking mechanism Simple one-hand-use design Injection molding compatibility Shortcomings: All three devices must be fed through the distal end of the wire No single device can use all wire sizes Sustainability Increases efficiency of vascular operations. Reduces cost, supplies, and chance of accidental injuries. Compatible with all standard guide wires making it less likely to reach the end of shelf life​ Injection-moldable design makes prototype cheap, easy, and sustainable for manufacturing. Design Objectives Ability to clip device on/off wire without threading through the wire’s distal end Single-handed maneuverability Easy translation of device up and down the wire One device compatible for wire sizes: 0.014”, 0.018”, 0.035” Future Goals Finalize design details with physicians Apply for intellectual property rights