Non-invasive battery recharger for electronic cardiac implants
First Claim
1. A device for recharging the battery of cardiac implants comprising:
- a generator (A) connectable and powerable by an AC or DC energy supply power source (1), at least first and second potentiometers (4, 5), a high power amplifier (6), a transmitter unit (B) comprising a resonant network with a capacitor (7) and a coil (8), said transmitter unit (B) adapted to produce a magnetic field that induces a voltage in a corresponding coil (9) of an implantable device (C), which is rectified by a bridge rectifier (10) and filtered by a capacitor, characterized in that said first potentiometer (4) is adapted to adjust the frequency of a (co)sinusoidal voltage controlled oscillator [(cosin VCO] (3) and said second potentiometer (5) is adapted to adjust the intensity and amplitude of the (co)sinusoidal voltage controlled oscillator [(co)din VCO] (3), the resulting signal being deliverable to said high power amplifier (6) which is connected through a coaxial cable to the transmitter unit (B) whose said coil (8) is a linear air core coil, said transmitter unit (B) being adapted for producing a (co)sinusoidal magnetic field which in turn indicates a (co)sinusoidal voltage in the said corresponding coil (9) of the implantable device (C).
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Abstract
The present invention refers to a device used to recharge the battery of electronic cardiac implants, like implanted pacemakers and defibrillators. It can be used to recharge the battery after an emergency requirement, such as: defibrillation or in diagnosis and or reprogramming of implants, during which no energy is demanded from the internal battery, seeing that the energy feed becomes guaranteed (accepted) by the proposed device. The invention is composed by three essential components: a generator (A), a transmitter unit (B) and a receptor coil (C). The generator is destined to produce an energy signal with determined amplitude and frequency and that is carried across through a coaxial cable to the transmitter unit (B). The emitted magnetic field is captured by the receptor coil (C) that is implanted inside the human body, generating a voltage with the absence of the Gibbs phenomenon. Furthermore, the battery recharging device guarantees the energetic supply of a communication channel between the exterior for diagnosis and/or implant reprogramming. In this case, there will be no demand of energy from the internal battery.
15 Citations
7 Claims
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1. A device for recharging the battery of cardiac implants comprising:
a generator (A) connectable and powerable by an AC or DC energy supply power source (1), at least first and second potentiometers (4, 5), a high power amplifier (6), a transmitter unit (B) comprising a resonant network with a capacitor (7) and a coil (8), said transmitter unit (B) adapted to produce a magnetic field that induces a voltage in a corresponding coil (9) of an implantable device (C), which is rectified by a bridge rectifier (10) and filtered by a capacitor, characterized in that said first potentiometer (4) is adapted to adjust the frequency of a (co)sinusoidal voltage controlled oscillator [(cosin VCO] (3) and said second potentiometer (5) is adapted to adjust the intensity and amplitude of the (co)sinusoidal voltage controlled oscillator [(co)din VCO] (3), the resulting signal being deliverable to said high power amplifier (6) which is connected through a coaxial cable to the transmitter unit (B) whose said coil (8) is a linear air core coil, said transmitter unit (B) being adapted for producing a (co)sinusoidal magnetic field which in turn indicates a (co)sinusoidal voltage in the said corresponding coil (9) of the implantable device (C). - View Dependent Claims (2, 3, 4, 5, 6, 7)
Specification