IMPLANTABLE PULSE GENERATORS AND METHODS FOR SELECTIVE NERVE STIMULATION
First Claim
1. An implantable pulse generator for stimulating nerves comprising:
- a first waveform generator adapted to generate a first waveform having a first frequency;
a second waveform generator adapted to generates a carrier waveform having a second frequency that is higher than said first frequency;
a modulator electrically coupled to said first and second waveform generators and adapted to modulate said first waveform and said carrier waveform to generate a modulated waveforma surgically implantable housing containing said first and second waveform generators and said modulator; and
an electrode electrically coupled to said modulator for applying said modulated waveform.
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Accused Products
Abstract
An Implantable Pulse Generator (IPG) includes a surgically implantable housing, a battery, a first waveform generator, a second waveform generator, a modulator, and electrodes. The IPG produces a pulse envelope, a carrier waveform, and a modulated waveform. The pulse envelope is a low frequency waveform with specific pulse width, amplitude and shape to selectively stimulate a target nerve or body part. The carrier waveform is a high frequency waveform with properties such as amplitude, frequency and the like chosen so as to overcome tissue impedance and the stimulation threshold of the target nerve. The modulated waveform is the waveform obtained by modulating the carrier waveform by the pulse envelope.
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Citations
25 Claims
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1. An implantable pulse generator for stimulating nerves comprising:
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a first waveform generator adapted to generate a first waveform having a first frequency; a second waveform generator adapted to generates a carrier waveform having a second frequency that is higher than said first frequency; a modulator electrically coupled to said first and second waveform generators and adapted to modulate said first waveform and said carrier waveform to generate a modulated waveform a surgically implantable housing containing said first and second waveform generators and said modulator; and an electrode electrically coupled to said modulator for applying said modulated waveform. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An implantable system for stimulating nerves comprising:
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a first waveform generator adapted to generate a first waveform having a frequency capable of stimulating a body part; a second waveform generator adapted to generates a carrier waveform having a second frequency capable of passing through tissue of a mammal; a modulator electrically coupled to said first and second waveform generators and adapted to modulate said first waveform and said carrier waveform to generate a modulated waveform; a power source for operating said system; a surgically implantable housing containing said first and second waveform generators, said modulator, and said power source; and an electrode electrically coupled to said modulator for applying said modulated waveform. - View Dependent Claims (17, 18, 19, 20)
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21. A method for stimulating body parts comprising:
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providing an implantable pulse generator including a first waveform generator adapted to generate a first waveform having a first frequency capable of stimulating a body part, a second waveform generator adapted to generates a carrier waveform having a frequency capable of passing through tissue of a mammal, a modulator electrically coupled to said first and second waveform generators and adapted to modulate said first waveform and said carrier waveform to generate a modulated waveform, a power source for providing power to said first and second waveform generators and said modulator, a housing containing said first and second waveform generators, said modulator and said power source, and an electrode electrically coupled to said modulator for applying said modulated waveform; surgically implanting said housing in a mammal; generating said first waveform and said carrier waveform; modulating said first waveform with said carrier waveform to produce a modulated signal; applying said modulated signal to said body part. - View Dependent Claims (22, 23, 24, 25)
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Specification