Mechanical defibrillator and method for defibrillating a heart
First Claim
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1. An implantable heart defibrillator comprising:
- implantable means for detecting a condition of a heart and for emitting a sensed condition signal;
implantable control means for generating, dependent on said sensed condition signal, a command signal to initiate a selected cardiac therapy regimen including, when warranted by said sensed condition signal, a defibrillation regimen; and
implantable shock generator means, responsive to said command signal, for generating at least one defibrillation shock pulse containing non-electrical energy as at least part of said defibrillation regimen; and
including means adapted for contact with tissue of said heart for delivering said shock pulse containing said non-electrical energy to said heart as a direct mechanical impact to said heart tissue.
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Abstract
An implantable heart defibrillator and a method for defibrillating a heart, employ a shock pulse generator for delivering a defibrillation shock to a heart, the delivered energy being mechanical. The shock pulse generator includes an electromechanical energy converter which generates, e.g., pressure, by means of a piezoelement, in a pressure chamber. Pressure is transmitted by a fluid in an electrode devised like a hydraulic line to a balloon-like electrode head in contact with heart tissue. The generated pressure causes the electrode head to expand and deliver a mechanical shock to the heart corresponding to the pressure.
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Citations
34 Claims
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1. An implantable heart defibrillator comprising:
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implantable means for detecting a condition of a heart and for emitting a sensed condition signal; implantable control means for generating, dependent on said sensed condition signal, a command signal to initiate a selected cardiac therapy regimen including, when warranted by said sensed condition signal, a defibrillation regimen; and implantable shock generator means, responsive to said command signal, for generating at least one defibrillation shock pulse containing non-electrical energy as at least part of said defibrillation regimen; and
including means adapted for contact with tissue of said heart for delivering said shock pulse containing said non-electrical energy to said heart as a direct mechanical impact to said heart tissue. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A method for defibrillating a heart comprising the steps of:
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converting electrical energy into a non-electrical energy shock pulse; and delivering said non-electrical energy shock pulse in vivo to a heart exhibiting fibrillation as a direct mechanical impact to tissue of said heart for defibrillating said heart. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31)
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32. An implantable heart defibrillator comprising:
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implantable means for detecting a condition of a heart and for emitting a sensed condition signal; implantable control means for generating, dependent on said sensed condition signal, a command signal to initiate a selected cardiac therapy regimen including, when warranted by said sensed condition signal, a defibrillation regimen; and implantable shock generator means, responsive to said command signal, for generating at least one defibrillation shock by piezoelectrically converting electrical energy into mechanical energy, as at least part of said defibrillation regimen, and for delivering said shock containing said mechanical energy to said heart.
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33. An implantable heart defibrillator comprising:
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implantable means for detecting a condition of a heart and for emitting a sensed condition signal; implantable control means for generating, dependent on said sensed condition signal, a command signal to initiate a selected cardiac therapy regimen including, when warranted by said sensed condition signal, a defibrillation regimen; and implantable shock generator means, responsive to said command signal, for generating at least one defibrillation shock by converting electrical energy into chemical energy and converting said chemical energy into mechanical energy, as at least part of said defibrillation regimen, and for delivering said shock containing said mechanical energy to said heart.
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34. An implantable heart defibrillator comprising:
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implantable means for detecting a condition of a heart and for emitting a sensed condition signal; implantable control means for generating, dependent on said sensed condition signal, a command signal to initiate a selected cardiac therapy regimen including, when warranted by said sensed condition signal, a defibrillation regimen; and implantable bubble generator means, responsive to said command signal, for generating at least one defibrillation shock containing mechanical energy as at least part of said defibrillation regimen, and for delivering said shock containing said mechanical energy to said heart.
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Specification