Universal recharging of an implantable medical device
First Claim
1. A system, comprising:
- a device adapted to charge a rechargeable power source of an Implantable Medical Device (IMD); and
an antenna assembly physically removably coupled to the device, the antenna assembly having a primary coil and a corresponding sense coil, the sense coil having a configuration that is selected based on the configuration of the primary coil, the sense coil adapted to prevent voltage across the primary coil from exceeding a maximum voltage amplitude;
wherein the primary coil is any selected one of multiple coil configurations, and wherein the device is adapted to drive any of the multiple coil configurations.
1 Assignment
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Accused Products
Abstract
Techniques associated with a universal recharging device for recharging a power source of implantable medical devices (IMDs). The recharging device includes an interface to allow an antenna assembly to be removably coupled. The antenna assembly has a primary coil and a corresponding sense coil. The sense coil has a configuration that is selected based on the configuration of the primary coil. The sense coil is adapted to prevent voltage across the primary coil from exceeding a maximum voltage amplitude allowable with the recharging device. The maximum voltage amplitude may be selected based on a maximum magnetic field strength to which a patient is to be exposed. In one embodiment, the maximum voltage amplitude is programmable.
32 Citations
57 Claims
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1. A system, comprising:
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a device adapted to charge a rechargeable power source of an Implantable Medical Device (IMD); and an antenna assembly physically removably coupled to the device, the antenna assembly having a primary coil and a corresponding sense coil, the sense coil having a configuration that is selected based on the configuration of the primary coil, the sense coil adapted to prevent voltage across the primary coil from exceeding a maximum voltage amplitude; wherein the primary coil is any selected one of multiple coil configurations, and wherein the device is adapted to drive any of the multiple coil configurations. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. For use with a recharge system that is adapted to recharge a rechargeable power supply of an implantable medical device (IMD), a system, comprising:
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a primary coil interface adapted to be physically removably coupled to a primary coil that is any of multiple coil configurations; a sense coil interface adapted to be physically removably coupled to a sense coil and to regulate voltage amplitude across the sense coil while the primary coil interface is being used to recharge the rechargeable power supply, thereby limiting voltage amplitude across the primary coil interface to a maximum voltage amplitude; a primary coil adapted to be coupled to the primary coil interface, the primary coil having a selected one of the multiple coil configurations; and a sense coil having a coil configuration that is selected based on the selected one of the multiple coil configurations. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28)
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29. An antenna assembly for use in recharging an Implantable Medical Device (IMD) having a secondary coil, the antenna assembly comprising:
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a primary coil having a coil configuration selected from multiple possible coil configurations; a sense coil having a coil configuration that is selected based on the selected coil configuration of the primary coil; and a sense coil interface physically removably coupled to the sense coil, the sense coil interface adapted to limit strength of a magnetic field coupling the primary coil to the sense coil when the primary coil is inductively coupled to the secondary coil. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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40. A method of transcutaneously recharging a rechargeable power source of an implantable medical device (IMD), comprising:
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receiving, by a recharging device, a primary coil that is removably coupleable to the recharging device, wherein the primary coil may be any one of multiple types of primary coils; and receiving, by the recharging device, a sense coil that is removably coupleable to the recharging device, wherein the sense coil is configured to maintain a given ratio between voltage across the primary coil and voltage across the sense coil when the primary coil is recharging the rechargeable power source, wherein the sense coil has a coil configuration that is determined based on the type of the primary coil. - View Dependent Claims (41, 42, 43, 44, 45, 46, 47)
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48. A system, comprising:
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an implantable medical device (IMD); an external device adapted to transmit electromagnetic energy to the IMD; and an antenna assembly physically removably coupled to the external device, the antenna assembly having a primary coil and a sense coil having a configuration that is selected based on a configuration of the primary coil, the sense coil adapted to prevent voltage across the primary coil from exceeding a selected maximum voltage amplitude; wherein the primary coil may be any selectable one of multiple configurations, and wherein the external device is adapted to drive any of the multiple configurations. - View Dependent Claims (49, 50, 51, 52, 53, 54, 55, 56, 57)
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Specification