This very simple model is similar to the original cable organizer provided by manufacturer of ECG machines, but for me this is a better mechanism than the one provided from factory (the original one broke after a while). It relies on sliding two parts against each other and then securing it with a piece of filament (approx. 6mm long, hole cutout is for 1.75mm filament). You can choose yourself if you want to print it with or without the heart symbol.
Recommended print settings: