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A Passive implantable atrial defibrillation system using transcutaneous RF power delivery.

Biomedical Sciences Research Institute Computer Science Research Institute Environmental Sciences Research Institute Nanotechnology & Advanced Materials Research Institute

Santos, JA, Manoharan, G, Evans, NE, Anderson, JMCC, Kidawi, BJ, Allen, JD and Adgey, AAJ (2000) A Passive implantable atrial defibrillation system using transcutaneous RF power delivery. In: IEEE-EMBS Asia Pacific Conference, Hangzhou, Peoples Republic of China. UNSPECIFIED. 2 pp. [Conference contribution]

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Atrial fibrillation (AF) is one of the most common sustained cardiac arrhythmias found. Its treatment requires the use of a synchronised electrical shock or drug therapy. This paper describes a new form of electrical defibrillator that empioys a two-part, transdermal RF transformer to couple an on-off keyed 7.2 :MHz pulse to an implanted, passive receiver; this, in turn, . delivers a unipolar DC shock to the heart. Factors influencing the transformer's design are discussed and results from axial and lateral primary / secondary coil -displacement trials presented. In animal studies, cardioversion was 100 % successful with pulses of 100 V amplitude and 10 rns width. The implant is battery-free, which makes it an attractive and inexpensive alternative for the treatment ofAF.

Item Type:Conference contribution (Paper)
Keywords:Atrial Fibrillation, Pulsed Mode RF Power Delivery, Battery-Free Cardiac Implants
Faculties and Schools:Faculty of Computing & Engineering
Faculty of Computing & Engineering > School of Computing and Intelligent Systems
Faculty of Computing & Engineering > School of Engineering
Research Institutes and Groups:Engineering Research Institute
ID Code:8066
Deposited By:Dr Jose Santos
Deposited On:16 Feb 2010 14:40
Last Modified:16 Feb 2010 14:40

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