Transcutaneous Dual Tuned RF Coil System Voltage Gain and Efficiency Evaluation for a Passive Implantable Atrial Defibrillator

OJ Escalona, JJ Velasquez, N Waterman, L Chirwa, JMCC Anderson

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Abstract

Cardioversion of atrial fibrillation (AF) can be achieved by applying an electric shock to the heart (defibrillation). A cost-effective approach for internal cardioversion is by means of a subcutaneous passive implantable atrial defibrillator (PIAD). A circuit design using a dual tuned resonant circuit whose capacitance on the receiver side also serves as a voltage booster is proposed and evaluated. The circuit performance is characterised using a MATLAB based model and a PSpice simulation. The circuit exhibited inherent voltagegain stability with a reasonable voltage gain (VRx / VTx > 0 .3) . Computed link efficiency modelling, estimated high link efficiency values of about 63.63% at the 208 kHz resonant frequency (26 mm air gap between coils). The above theoretical characterisation wassupported by hardware prototyping which realised a system efficiency of 59.61% (best case).
LanguageEnglish
Title of host publicationUnknown Host Publication
Place of Publicationwww
Pages569-572
Number of pages4
Volume37
Publication statusPublished - 15 Nov 2010
EventComputing in Cardiology - Belfast-UK
Duration: 15 Nov 2010 → …
http://www.cinc.org

Conference

ConferenceComputing in Cardiology
Period15/11/10 → …
Internet address

Fingerprint

Defibrillators
Networks (circuits)
Electric potential
Resonant circuits
MATLAB
Natural frequencies
Capacitance
Hardware
Air
Costs

Keywords

  • Transcutaneous Atrial Defibrillation
  • RF Coupled Coils
  • Wireless Power
  • MatLab Modeling

Cite this

Escalona, OJ., Velasquez, JJ., Waterman, N., Chirwa, L., & Anderson, JMCC. (2010). Transcutaneous Dual Tuned RF Coil System Voltage Gain and Efficiency Evaluation for a Passive Implantable Atrial Defibrillator. In Unknown Host Publication (Vol. 37, pp. 569-572). www.
Escalona, OJ ; Velasquez, JJ ; Waterman, N ; Chirwa, L ; Anderson, JMCC. / Transcutaneous Dual Tuned RF Coil System Voltage Gain and Efficiency Evaluation for a Passive Implantable Atrial Defibrillator. Unknown Host Publication. Vol. 37 www, 2010. pp. 569-572
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title = "Transcutaneous Dual Tuned RF Coil System Voltage Gain and Efficiency Evaluation for a Passive Implantable Atrial Defibrillator",
abstract = "Cardioversion of atrial fibrillation (AF) can be achieved by applying an electric shock to the heart (defibrillation). A cost-effective approach for internal cardioversion is by means of a subcutaneous passive implantable atrial defibrillator (PIAD). A circuit design using a dual tuned resonant circuit whose capacitance on the receiver side also serves as a voltage booster is proposed and evaluated. The circuit performance is characterised using a MATLAB based model and a PSpice simulation. The circuit exhibited inherent voltagegain stability with a reasonable voltage gain (VRx / VTx > 0 .3) . Computed link efficiency modelling, estimated high link efficiency values of about 63.63{\%} at the 208 kHz resonant frequency (26 mm air gap between coils). The above theoretical characterisation wassupported by hardware prototyping which realised a system efficiency of 59.61{\%} (best case).",
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Escalona, OJ, Velasquez, JJ, Waterman, N, Chirwa, L & Anderson, JMCC 2010, Transcutaneous Dual Tuned RF Coil System Voltage Gain and Efficiency Evaluation for a Passive Implantable Atrial Defibrillator. in Unknown Host Publication. vol. 37, www, pp. 569-572, Computing in Cardiology, 15/11/10.

Transcutaneous Dual Tuned RF Coil System Voltage Gain and Efficiency Evaluation for a Passive Implantable Atrial Defibrillator. / Escalona, OJ; Velasquez, JJ; Waterman, N; Chirwa, L; Anderson, JMCC.

Unknown Host Publication. Vol. 37 www, 2010. p. 569-572.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

T1 - Transcutaneous Dual Tuned RF Coil System Voltage Gain and Efficiency Evaluation for a Passive Implantable Atrial Defibrillator

AU - Escalona, OJ

AU - Velasquez, JJ

AU - Waterman, N

AU - Chirwa, L

AU - Anderson, JMCC

PY - 2010/11/15

Y1 - 2010/11/15

N2 - Cardioversion of atrial fibrillation (AF) can be achieved by applying an electric shock to the heart (defibrillation). A cost-effective approach for internal cardioversion is by means of a subcutaneous passive implantable atrial defibrillator (PIAD). A circuit design using a dual tuned resonant circuit whose capacitance on the receiver side also serves as a voltage booster is proposed and evaluated. The circuit performance is characterised using a MATLAB based model and a PSpice simulation. The circuit exhibited inherent voltagegain stability with a reasonable voltage gain (VRx / VTx > 0 .3) . Computed link efficiency modelling, estimated high link efficiency values of about 63.63% at the 208 kHz resonant frequency (26 mm air gap between coils). The above theoretical characterisation wassupported by hardware prototyping which realised a system efficiency of 59.61% (best case).

AB - Cardioversion of atrial fibrillation (AF) can be achieved by applying an electric shock to the heart (defibrillation). A cost-effective approach for internal cardioversion is by means of a subcutaneous passive implantable atrial defibrillator (PIAD). A circuit design using a dual tuned resonant circuit whose capacitance on the receiver side also serves as a voltage booster is proposed and evaluated. The circuit performance is characterised using a MATLAB based model and a PSpice simulation. The circuit exhibited inherent voltagegain stability with a reasonable voltage gain (VRx / VTx > 0 .3) . Computed link efficiency modelling, estimated high link efficiency values of about 63.63% at the 208 kHz resonant frequency (26 mm air gap between coils). The above theoretical characterisation wassupported by hardware prototyping which realised a system efficiency of 59.61% (best case).

KW - Transcutaneous Atrial Defibrillation

KW - RF Coupled Coils

KW - Wireless Power

KW - MatLab Modeling

M3 - Conference contribution

VL - 37

SP - 569

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BT - Unknown Host Publication

CY - www

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Escalona OJ, Velasquez JJ, Waterman N, Chirwa L, Anderson JMCC. Transcutaneous Dual Tuned RF Coil System Voltage Gain and Efficiency Evaluation for a Passive Implantable Atrial Defibrillator. In Unknown Host Publication. Vol. 37. www. 2010. p. 569-572