Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical therapeutic systems
Reexamination Certificate
2006-05-16
2006-05-16
Getzow, Scott M. (Department: 3762)
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Electrical therapeutic systems
C607S008000
Reexamination Certificate
active
07047072
ABSTRACT:
A dosage for electrotherapy delivered to a patient, such as a defibrillation pulse delivered by an external defibrillator, is selected based on an age-related classification, such as adult or child, and a measured electrical parameter, such as the transthoracic impedance, of the patient. For example, a nominal voltage level for an energy storage circuit may be determined based on a nominal dosage. The nominal voltage level may be adjusted by applying a function that relates voltage level adjustment to impedance to the measured impedance. The function may be selected based on the age-related classification of the patient. The dosage of the defibrillation pulse delivered based on the adjusted voltage level, i.e., the selected dosage, may have a substantially equivalent probability of success for the patient as the nominal dosage would provide for a reference patient with an average transthoracic impedance for the class of which the patient is a member.
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International Preliminary Examination Report for PCT/US03/38308, filed Dec. 3, 2003 (4 pages).
Sullivan Joseph L.
Walker Robert G.
Getzow Scott M.
Medtronic Emergency Response Systems, Inc.
Shumaker & Sieffert P.A.
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