Electrode Securing System

Problem

A common method to assess electrophysiology of a muscle is to elicit M-waves (maximal nerve stimulation with maximal muscle reaction) and H-reflexes (simple reflex like a tendon-tap). During this process, a researcher manually moves a small electrode in the cavity formed by the back of the knee when bent to a right angle. Methods to secure the placement of an electrode in the  area are inadequate because he researcher to manually move the electrode into place, and then attempt to quickly secure the electrode in place with material wedged between the electrode and a strap running around the femur that is then tightened. The electrode always moves around. 

Task

Create an apparatus in which to move and secure an electrode firmly to the back of the knee. The electrode should be embedded into a material that is firm enough that small movements can be made by the research to allow him/her to find the optimal location of stimulation, but  also be soft enough to conform to the variations of shapes and sizes of the cavity.

Provided by Keith Cole, PT, DPT, PhD, MbiomedE, OCS, at George Hacks 2018 Medical Solutions Hackathon.

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