Variable recharge determination for an implantable medical device and method therefore
First Claim
1. An implantable medical device adapted to provide a therapeutic output to a patient, comprising:
- a battery having a voltage;
a therapy module, operatively coupled to said battery, adapted to provide said therapeutic output;
a control circuit, operatively coupled to said battery, providing an action indicative of recharging said battery when said voltage of said battery discharges to a recharge voltage;
wherein said recharge voltage is varied as said battery ages;
wherein said recharge voltage is decreased in value as said battery ages.
1 Assignment
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Accused Products
Abstract
Implantable medical device adapted to provide a therapeutic output to a patient. A therapy module, operatively coupled to a battery, is adapted to provide the therapeutic output. A control circuit provides an action indicative of recharging the battery when the voltage of the battery reaches a recharge voltage wherein the recharge voltage is varied as the battery ages. Also a method of providing a therapeutic output to a patient using an implantable medical device having a battery having a voltage. An action indicative of recharging the battery is provided when the voltage of the battery reaches a recharge voltage. The recharge voltage is varied as the battery ages.
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Citations
21 Claims
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1. An implantable medical device adapted to provide a therapeutic output to a patient, comprising:
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a battery having a voltage; a therapy module, operatively coupled to said battery, adapted to provide said therapeutic output; a control circuit, operatively coupled to said battery, providing an action indicative of recharging said battery when said voltage of said battery discharges to a recharge voltage; wherein said recharge voltage is varied as said battery ages; wherein said recharge voltage is decreased in value as said battery ages. - View Dependent Claims (2)
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3. An implantable medical device adapted to provide a therapeutic output to a patient, comprising:
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a battery having a voltage; a therapy module, operatively coupled to said battery, adapted to provide said therapeutic output; a control circuit, operatively coupled to said battery, providing an action indicative of recharging said battery when said voltage of said battery discharges to a recharge voltage; wherein said recharge voltage is varied as said battery ages; wherein said battery has a fully charged capacity that declines as said battery ages and wherein said recharge voltage is varied in order to tend to equalize a value of a difference in voltage between a fully charged voltage and said recharge voltage as said battery ages. - View Dependent Claims (4)
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5. An implantable medical device adapted to provide a therapeutic output to a patient, comprising:
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a battery having a voltage; a therapy module, operatively coupled to said battery, adapted to provide said therapeutic output; a control circuit, operatively coupled to said battery, providing an action indicative of recharging said battery when said voltage of said battery discharges to a recharge voltage; wherein said recharge voltage is varied as said battery ages; wherein said battery has a fully charged capacity that declines as said battery ages and wherein said recharge voltage is varied in order to tend to equalize an amount of charge imparted to said battery during recharge between a fully charged voltage and said recharge voltage. - View Dependent Claims (6)
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7. An implantable medical device adapted to provide a therapeutic output to a patient, comprising:
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a battery having a voltage; a therapy module, operatively coupled to said battery, adapted to provide said therapeutic output; a control circuit, operatively coupled to said battery, providing an action indicative of recharging said battery when said voltage of said battery discharges to a recharge voltage; wherein said recharge voltage is varied as said battery ages; wherein said voltage is varied such that a time between a first recharge of said battery and a second recharge of said battery is made more uniform as said battery ages. - View Dependent Claims (8)
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9. An implantable medical device adapted to provide a therapeutic output to a patient, comprising:
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a battery having a voltage; a therapy module, operatively coupled to said battery, adapted to provide said therapeutic output; a control circuit, operatively coupled to said battery, providing an action indicative of recharging said battery when said voltage of said battery discharges to a recharge voltage; wherein said recharge voltage is varied as said battery ages; wherein said recharge voltage is decreased in value as said battery ages in an early stage of a life of said battery and wherein said recharge voltage is increased in value as said battery ages in a later stage of said life of said battery.
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10. An implantable medical device adapted to provide a therapeutic output to a patient, comprising:
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a battery having a voltage; a therapy module, operatively coupled to said battery, adapted to provide said therapeutic output; a control circuit, operatively coupled to said battery, providing an action indicative of recharging said battery when said voltage of said battery discharges to a recharge voltage; wherein said recharge voltage is varied as said battery ages, wherein said recharge voltage is increased in value as said battery ages in an early stage of a life of said battery and wherein said recharge voltage is decreased in value as said battery ages in a later stage of said life of said battery.
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11. A method of providing a therapeutic output to a patient using an implantable medical device having a battery having a voltage, comprising:
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providing an action indicative of recharging said battery when said voltage of said battery discharges to a recharge voltage; and varying said recharge voltage as said battery ages; wherein said recharge voltage in said varying step is decreased in value as said battery ages.
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12. A method of providing a therapeutic output to a patient using an implantable medical device having a battery having a voltage, comprising:
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providing an action indicative of recharging said battery when said voltage of said battery discharges to a recharge voltage; and varying said recharge voltage as said battery ages; wherein said battery has a fully charged capacity that declines as said battery ages and wherein said recharge voltage is varied in order to tend to equalize a value of a difference in voltage between a fully charged voltage and said recharge voltage as said battery ages. - View Dependent Claims (13)
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14. A method of providing a therapeutic output to a patient using an implantable medical device having a battery having a voltage, comprising:
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providing an action indicative of recharging said battery when said voltage of said battery discharges to a recharge voltage; and varying said recharge voltage as said battery ages; wherein said battery has a fully charged capacity that declines as said battery ages and wherein said recharge voltage is varied in order to tend to equalize an amount of charge imparted to said battery during recharge between a fully charged voltage and said recharge voltage. - View Dependent Claims (15)
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16. A method of providing a therapeutic output to a patient using an implantable medical device having a battery having a voltage, comprising:
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providing an action indicative of recharging said battery when said voltage of said battery discharges to a recharge voltage; and varying said recharge voltage as said battery ages; wherein said voltage is varied such that a time between a first recharge of said battery and a second recharge of said battery is made more uniform as said battery ages. - View Dependent Claims (17, 18)
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19. A method of providing a therapeutic output to a patient using an implantable medical device having a battery having a voltage, comprising:
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providing an action indicative of recharging said battery when said voltage of said battery discharges to a recharge voltage; and varying said recharge voltage as said battery ages; wherein said recharge voltage is decreased in value as said battery ages in an early stage of a life of said battery and wherein said recharge voltage is increased in value as said battery ages in a later stage of said life of said battery.
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20. A method of providing a therapeutic output to a patient using an implantable medical device having a battery having a voltage, comprising:
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providing an action indicative of recharging said battery when said voltage of said battery discharges to a recharge voltage; and varying said recharge voltage as said battery ages; wherein said recharge voltage is increased in value as said battery ages in an early stage of a life of said battery and wherein said recharge voltage is decreased in value as said battery ages in a later stage of said life of said battery.
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21. An implantable medical device adapted to provide a therapeutic output to a patient, comprising:
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a battery having a voltage; a therapy module, operatively coupled to said battery, adapted to provide said therapeutic output; a control circuit, operatively coupled to said battery, including means for providing an action indicative of recharging said battery when said voltage of said battery discharges to a recharge voltage; wherein said means includes means for varying the recharge voltage as said battery ages; wherein the means for varying the recharge voltage as said battery ages includes means for decreasing said recharge voltage in value as said battery ages in an early stage of a life of said battery and increasing said recharge voltage in value as said battery ages in a later stage of said life of said battery.
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Specification