Variable frequency impedance measurement

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United States of America Patent

PATENT NO 9776012
SERIAL NO

13791491

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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When a defibrillator selects a dosage of energy or current to be delivered to a patient, the defibrillator selects an excitation current frequency and applies the excitation current at the selected frequency to the patient. The frequency of the excitation current is selected as a function of the dosage to be delivered. The patient's response to the excitation current at the selected frequency will accurately reflect the impedance that the defibrillator will “see” when delivering the selected dosage of energy or current.

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Patent Owner(s)

  • PHYSIO-CONTROL, INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chapman, Fred Renton, US 20 118
Schweizer, Scott Snohomish, US 2 9
Sullivan, Joseph Kirkland, US 51 664

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