Neural stimulation devices and systems for treatment of chronic inflammation
First Claim
1. A leadless, implantable microstimulator device for treating chronic inflammation, the device comprising:
- a hermetically sealed capsule body;
at least two electrically conductive capsule regions, wherein each region electrically connects to an electrode for applying stimulation to a vagus nerve;
a resonator within the sealed capsule body;
a battery within the sealed capsule body; and
an electronic assembly within the sealed capsule body, wherein the electronic assembly is connected to the capsule body by a suspension configured to absorb mechanical shock and make electrical contact;
wherein the electronic assembly comprises power management circuitry configured to receive power from the resonator to charge the battery, and a microcontroller configured to control stimulation of the vagus nerve from the conductive capsule regions.
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Accused Products
Abstract
A system for treating chronic inflammation may include an implantable microstimulator, a wearable charger, and optionally an external controller. The implantable microstimulator may be implemented as a leadless neurostimulator implantable in communication with a cervical region of a vagus nerve. The microstimulator can address several types of stimulation including regular dose delivery. The wearable charger may be worn around the subject'"'"'s neck to rapidly (<10 minutes per week) charge an implanted microstimulator. The external controller may be configured as a prescription pad that controls the dosing and activity of the microstimulator.
697 Citations
19 Claims
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1. A leadless, implantable microstimulator device for treating chronic inflammation, the device comprising:
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a hermetically sealed capsule body; at least two electrically conductive capsule regions, wherein each region electrically connects to an electrode for applying stimulation to a vagus nerve; a resonator within the sealed capsule body; a battery within the sealed capsule body; and an electronic assembly within the sealed capsule body, wherein the electronic assembly is connected to the capsule body by a suspension configured to absorb mechanical shock and make electrical contact; wherein the electronic assembly comprises power management circuitry configured to receive power from the resonator to charge the battery, and a microcontroller configured to control stimulation of the vagus nerve from the conductive capsule regions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18, 19)
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17. A leadless, implantable microstimulator device for treating chronic inflammation by stimulation of a cervical region of a vagus nerve, the device comprising:
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a hermetically sealed capsule body having two electrically conductive capsule end regions separated by a central non-conductive region, wherein the capsule body has a hemi-cylindrical nerve channel, further wherein each conductive region is configured to electrically connect to an electrode for applying stimulation to a vagus nerve within the nerve channel; a resonator, battery and electronic assembly within the sealed capsule body; and a spring suspension connecting the electronic assembly to the capsule body to absorb mechanical shock; wherein the electronic assembly comprises power management circuitry configured to receive power from the resonator to charge the battery, and a microcontroller configured to control stimulation of the vagus nerve from the conductive capsule regions.
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Specification