Description

Extremely Rare - Display Model Only - NOT FOR MEDICAL USE! The Model 5842 Medtronic™ Chardack™ Implantable Demand Pulse Generator - A second generation demand pacemaker. In 1967 Medtronic introduced the Model 5841, a ventricular-inhibited demand pacemaker with adjustable rate. It gained wide acceptance. Its successor, the Model 5842, offers significant design improvements: • Narrow pulse width (0.85 msec) to conserve current • Rate decrease with the depletion of more than one cell • Magnetically actuated switch to test standby function • Reversion to fixed-rate in the presence of external electrical interference such as 50- and 60-Hz AC