Cardiac support systems and methods for chronic use
First Claim
1. A cardiac support system comprising:
- a rotary blood pump that is implantable into a human body, wherein said rotary blood pump generates a desired amount of blood flow;
a power module coupled to said rotary blood pump, wherein said power module stores electrical energy utilized to operate said rotary blood pump, and said power module is implantable into said human body;
a receiving coil assembly coupled to said power module, wherein said receiving coil assembly is implantable into said human body; and
a transmitting coil assembly magnetic resonance coupled to said receiving coil assembly, wherein said transmitting coil assembly is utilized to electromagnetically transfer energy to said receiving coil assembly.
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Accused Products
Abstract
A high efficiency cardiac support system is suitable for chronic use in treating heart failure, wherein the system includes an implantable rotary blood pump, an implantable power module, a wireless power transfer subsystem, a patient monitor, and a programmer. In a cardiac support system, the cumulative efficiencies of the components of the system are capable of providing therapeutically effective blood flow for a typical day of awake hours using the energy from a single wireless recharge of an implanted rechargeable energy source. Moreover, the implantable rechargeable energy source may be recharged during a normal sleep period of 8 hours or less. The system may provide full or partial cardiac support without the need for external wearable batteries, controllers, or cables.
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Citations
33 Claims
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1. A cardiac support system comprising:
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a rotary blood pump that is implantable into a human body, wherein said rotary blood pump generates a desired amount of blood flow; a power module coupled to said rotary blood pump, wherein said power module stores electrical energy utilized to operate said rotary blood pump, and said power module is implantable into said human body; a receiving coil assembly coupled to said power module, wherein said receiving coil assembly is implantable into said human body; and a transmitting coil assembly magnetic resonance coupled to said receiving coil assembly, wherein said transmitting coil assembly is utilized to electromagnetically transfer energy to said receiving coil assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for treating heart failure, the method comprising:
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generating a desired amount of blood flow with a rotary blood pump implanted in a patient; storing electrical energy in a power module implanted in said patient, wherein said power module stores electrical energy received from a receiving coil assembly implanted in said patient; and coupling a transmitting coil assembly to said receiving coil assembly using magnetic resonance coupling, wherein said transmitting coil assembly electromagnetically transfers energy to said receiving coil assembly. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A cardiac support system comprising:
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a rotary blood pump that is implantable into a human body, wherein said rotary blood pump generates a desired amount of blood flow; a power module connected to said rotary blood pump, wherein said power module is implantable into said human body; and a receiving coil assembly receiving energy wirelessly, wherein said receiving coil assembly is implantable into said human body, said receiving coil assembly transfers said energy into said power module, and said desired amount of blood flow is generated with an energy conversion ratio (ECR) of 1.0 or greater using energy stored by said power module. - View Dependent Claims (25, 26, 27, 28)
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29. A method for treating heart failure, the method comprising:
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receiving energy wirelessly via a receiving coil assembly, wherein said receiving coil assembly is implantable into a human body; storing said energy in a power module, wherein said power module is implantable into said human body; and producing a desired amount of blood flow from a rotary blood pump utilizing energy provided by said power module, wherein said rotary blood pump is implantable into said human body, and said desired amount of blood flow is generated with an Energy Conversion Ratio (ECR) of 1.0 or greater using energy stored by said power module. - View Dependent Claims (30, 31, 32, 33)
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Specification