This is very similar to the clips provided by manufacture of the monitors for the 4 limb leads. We were tired of the 6 leads being a tangled mess and the clips always getting lost, or broken and purchasing new ones. So I redesigned the original and added a little tooth on the clip for it to lock in place better. This is still a prototype and I may be making changes and making the locking part stronger. Feel free to change the design to suit your department and monitor needs.
The author hasn't provided the model origin yet.