Removable heat management for recharge coils
First Claim
1. A heat sink device comprising:
- a material configured to absorb heat from an external energy transfer coil that transfers energy to a rechargeable power source of an implantable medical device via an implantable energy transfer coil of the implantable medical device;
a first housing configured to house the material and mate with a second housing that houses the external energy transfer coil; and
a coupling mechanism configured to removably attach the first housing of the heat sink device to the second housing of the external energy transfer coil.
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Accused Products
Abstract
Devices, systems, and techniques for managing heat generated in coils for wireless energy transmission are disclosed. Inductive coupling between two coils (e.g., a primary coil and a secondary coil) may be used to recharge the power source of an implantable medical device. A phase change material may be thermally coupled to the primary coil to absorb heat generated during the inductive coupling and reduce temperature increases of the primary coil. In one example, the phase change material may be configured to absorb heat from an energy transfer coil. A housing may be configured to contain the phase change material and a coupling mechanism may be configured to removably attach the housing to the energy transfer coil.
114 Citations
21 Claims
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1. A heat sink device comprising:
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a material configured to absorb heat from an external energy transfer coil that transfers energy to a rechargeable power source of an implantable medical device via an implantable energy transfer coil of the implantable medical device; a first housing configured to house the material and mate with a second housing that houses the external energy transfer coil; and a coupling mechanism configured to removably attach the first housing of the heat sink device to the second housing of the external energy transfer coil. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A system comprising:
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a first housing comprising an external energy transfer coil configured to transfer energy to a rechargeable power source of an implantable medical device via an implantable energy transfer coil of the implantable medical device; and a heat sink device configured to absorb heat from the external energy transfer coil, the heat sink comprising a second housing configured to removably attach to the first housing. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A method comprising:
removably attaching a first housing of a heat sink device to a second housing that houses an external energy transfer coil configured to transfer energy to a rechargeable power source of an implantable medical device via an implantable energy transfer coil of the implantable medical device, wherein a material housed by the first housing of heat sink device is configured to absorb heat from the external energy transfer coil. - View Dependent Claims (19, 20, 21)
Specification