BATTERY RECHARGE MANAGEMENT FOR IMPLANTABLE MEDICAL DEVICE
First Claim
1. A recharge management system for an implantable medical device, comprising in combination:
- a rechargeable power source operatively coupled with the implantable medical device;
a recharge coil operatively coupled with the implantable medical device and being capable of receiving energy from an external device to recharge the rechargeable power source;
a recharge measurement device configured to monitor a recharge parameter associated with the recharge management system; and
a recharge regulation control unit configured to regulate a charging rate of the rechargeable power source by increasing the charging rate based, at least in part, on the recharge parameter.
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Abstract
An implantable medical device having an implantable power source such as a rechargeable lithium ion battery. The implantable medical device includes a recharge module that regulates the recharging process of the implantable power source using closed-loop feedback control. The recharge module includes a recharge regulator, a recharge measurement device monitoring at least one recharge parameter, and a recharge regulation control unit for regulating the recharge energy delivered to the power source in response to the recharge measurement device. The recharge module adjusts the energy provided to the power source to ensure that the power source is being recharged under safe levels.
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Citations
36 Claims
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1. A recharge management system for an implantable medical device, comprising in combination:
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a rechargeable power source operatively coupled with the implantable medical device; a recharge coil operatively coupled with the implantable medical device and being capable of receiving energy from an external device to recharge the rechargeable power source; a recharge measurement device configured to monitor a recharge parameter associated with the recharge management system; and a recharge regulation control unit configured to regulate a charging rate of the rechargeable power source by increasing the charging rate based, at least in part, on the recharge parameter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of recharging a power source within an implantable medical device, comprising the steps of:
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(a) receiving energy within the implantable medical device from an external energy source; (b) recharging the power source with the energy; (c) sensing at least one recharge parameter of the implantable medical device in response to the step of recharging, wherein the parameter is selected from the group consisting of an input voltage to the power source, an input current to the power source, a power source voltage and a power source charge; and (d) regulating, with an implanted circuit, the step of recharging in response to the step of sensing by increasing a charging rate of the power source in response to the recharge parameter. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A recharge management system for an implantable medical device, comprising in combination:
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an external device providing a source of recharge energy; a rechargeable power source operatively coupled with the implantable medical device; a recharge coil operatively coupled with the implantable medical device and being capable of receiving energy from the external device to recharge the rechargeable power source; a recharge measurement device configured to monitor a recharge parameter associated with the recharge management system; and a recharge regulation control unit configured to regulate a charging rate of the rechargeable power source by increasing the charging rate based, at least in part, on the recharge parameter. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification