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1. WO2012147061 - DEFIBRILLATOR APPARATUS AND METHOD

Publication Number WO/2012/147061
Publication Date 01.11.2012
International Application No. PCT/IB2012/052127
International Filing Date 27.04.2012
IPC
A61N 1/39 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
1Electrotherapy; Circuits therefor
18Applying electric currents by contact electrodes
32alternating or intermittent currents
38for producing shock effects
39Heart defibrillators
A61N 1/378 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
1Electrotherapy; Circuits therefor
18Applying electric currents by contact electrodes
32alternating or intermittent currents
36for stimulation, e.g. heart pace-makers
372Arrangements in connection with the implantation of stimulators
378Electrical supply
CPC
A61N 1/3787
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
1Electrotherapy; Circuits therefor
18Applying electric currents by contact electrodes
32alternating or intermittent currents
36for stimulation
372Arrangements in connection with the implantation of stimulators
378Electrical supply
3787from an external energy source
A61N 1/395
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
1Electrotherapy; Circuits therefor
18Applying electric currents by contact electrodes
32alternating or intermittent currents
38for producing shock effects
39Heart defibrillators
395for treating atrial fibrillation
A61N 1/3956
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
1Electrotherapy; Circuits therefor
18Applying electric currents by contact electrodes
32alternating or intermittent currents
38for producing shock effects
39Heart defibrillators
3956Implantable devices for applying electric shocks to the heart, e.g. for cardioversion
A61N 1/3968
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
1Electrotherapy; Circuits therefor
18Applying electric currents by contact electrodes
32alternating or intermittent currents
38for producing shock effects
39Heart defibrillators
3968Constructional arrangements, e.g. casings
A61N 1/3975
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
1Electrotherapy; Circuits therefor
18Applying electric currents by contact electrodes
32alternating or intermittent currents
38for producing shock effects
39Heart defibrillators
3975Power supply
Applicants
  • UNIVERSITY OF ULSTER [GB]/[GB]
  • ANDERSON, Janice [GB]/[GB] (UsOnly)
  • ESCALONA, Omar Jacinto [GB]/[GB] (UsOnly)
  • MANOHARAN, Ganesh [GB]/[GB] (UsOnly)
Inventors
  • ANDERSON, Janice
  • ESCALONA, Omar Jacinto
  • MANOHARAN, Ganesh
  • ANDERSON, John, McCune
Agents
  • MABEY, Katherine, F.
Priority Data
1106982.027.04.2011GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) DEFIBRILLATOR APPARATUS AND METHOD
(FR) DÉFIBRILLATEUR ET PROCÉDÉ ASSOCIÉ
Abstract
(EN)
An apparatus and method for delivering an electrical defibrillation signal to a heart (36) transcutaneously. The apparatus (1 ) includes an external transmitter part (5) and implantable receiver part (3) arranged so that an RF pulse (22, 24) can be wirelessly transmitted through a barrier (29) and received internally to apply a defibrillating pulse to a heart (36). The oscillator (22) and the keying unit (24) are powered via a power source (2). The external transmitter (5) comprises a capacitor arrangement (8) connected to the power source (2) and a high voltage DC to DC converter (6), The capacitor (8) is connected through a resonant circuit (10) to circuitry (16, 18) operable to discharge the capacitor (8) through the resonant circuitry (10) and excite the primary coil (12) and cause RF pulse transmission. The primary coil (12) is inductively coupled to the secondary coil (30) of the implantable receiver (3), to enable instant wireless transmission of the RF pulse across the barrier (29). The receiver (3) further comprises a resonant circuit, rectification circuitry (32) and filtering circuitry (34).
(FR)
L'invention concerne un appareil et un procédé permettant de délivrer au coeur (36) par voie transcutanée un signal de défibrillation électrique. L'appareil (1) comprend une partie de transmission externe (5) et une partie de réception implantable (3) agencées de manière qu'une impulsion RF (22, 24) peut être transmise par radio à travers une barrière (29) et reçue en interne pour appliquer une impulsion de défibrillation au coeur (36). L'oscillateur (22) et l'unité de saisie au clavier (24) sont alimentés par une source d'alimentation (2). L'émetteur externe (5) comprend un ensemble condensateur (8) connecté à la source d'alimentation (2) et un convertisseur CC-CC de haute tension (6). Le condensateur (8) est connecté via un circuit résonnant (10) à un circuit (16, 18) ayant pour fonction de décharger le condensateur (8) via le circuit résonnant (10) et d'exciter la bobine primaire (12) et d'engendrer la transmission d'impulsions RF. La bobine primaire (12) est couplé par inductance à la bobine secondaire (30) du récepteur implantable (3) pour permettre une transmission radio instantanée de l'impulsion RF à travers la barrière (29). Le récepteur (3) comporte aussi un circuit résonnant, un circuit de rectification (32), et un circuit de filtrage (34).
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