Disposable external defibrillator

Details Disposable external defibrillator Disposable external defibrillator

1998-04-16

2000-03-21

Kamm, William E.

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical therapeutic systems

A61N 139

Patent

active

060412550

ABSTRACT:
External defibrillator using a thermal battery. The thermal battery provides an essentially infinite shelf life since it is internally insulated by dry salts until activation. The high power output of the thermal battery allows the use of leaky unreformed capacitors since they can be quickly recharged in spite of their current leakage. This obviates the energy intensive process of regular capacitor reforming. The extreme power output of the thermal battery also allows the therapy of essentially continuous shocks as it can recharge the capacitors in typically 5 seconds instead of the 15 to 30 seconds in conventional defibrillators.

REFERENCES:
patent: 3818304 (1974-06-01), Hursen et al.
patent: 3823037 (1974-07-01), Cairns et al.
patent: 3836798 (1974-09-01), Greatbatch
patent: 4510935 (1985-04-01), Spencer
patent: 5545184 (1996-08-01), Dougherty
patent: 5635812 (1997-06-01), Eschback et al.

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