Late night: Home.
Hmmmm. Well there you go, it does. The image in question shows part of a defibrillator, monophasic. Has been superceded now by a nifty new biphasic one.
Confused? So am I a lot of the time! :-)>
This is the journal of an accidental absurdartist, amateur photographer, amateur astronomer, not a bad cook (again, amateur), husband, father, professional nurse and a real life pseudo-intellectual vegetable...