I am leading a team looking into the current state of embolization coils, and the numerous issues with their usability. We are designing a catheter-agnostic coil that can function across multiple sizes and brands of microcatheters. There are currently two “catheter agnostic” coils on the market currently, the Penumbra Ruby and the Boston Scientific Embold, but these are still limited to .4 and .6 French (1 French= ⅓ mm) diameter variance in microcatheter respectively. The Embold is currently the highest quality and most state of the art coil on the market, so we looked to improve on this design. 

         Aside from price, there are a few constraints and issues faced by this coil. The rotation of the catheter is limited to less than 360° before the coil detaches, which has led to premature accidental detachments. There have also been cases where the coil can stretch and break off inside the patient in an undesired location. Finally, as the detachment mechanism is powered by simple mechanical force, an attempt at recalling the coil can lead to detachment, thus deploying the coil in an unwanted location. Our design aims to improve upon all of these issues, as well as completely removing the size constraint.