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 temperature; and
a recharge regulation control unit configured to regulate a charging rate of the rechargeable power source by increasing the charging rate, at least in part, in response to the temperature monitored by the recharge measurement device.
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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
57 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 temperature; and a recharge regulation control unit configured to regulate a charging rate of the rechargeable power source by increasing the charging rate, at least in part, in response to the temperature monitored by the recharge measurement device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. 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 temperature; and a recharge regulation control unit configured to regulate a charging rate of the rechargeable power source by increasing the charging rate, at least in part, in response to the temperature monitored by the recharge measurement device. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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39. A method of recharging a rechargeable power source operatively coupled within an implantable medical device using a recharge management system, comprising the steps of:
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(a) receiving energy with a recharge coil within the implantable medical device from an external energy source associated with an external device; (b) recharging the rechargeable power source with the energy; (c) monitoring, with a recharge measurement device, a temperature; and (d) regulating, with a recharge regulation control unit, the step of recharging in response to the step of monitoring by increasing a charging rate of the rechargeable power source in response, at least in part, on the temperature sensed in the monitoring step. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57)
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Specification