Method and apparatus for electrical stimulation of the respiratory muscles to achieve artificial ventilation in a patient
First Claim
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1. An apparatus for electrically stimulating respiration in an organism, said apparatus comprising:
- a first radio frequency transmitter for periodically generating a first radio frequency signal;
a first demodulator circuit for receiving and demodulating said first radio frequency signal, said first demodulator circuit including a stimulation pulse output;
a phrenic nerve electrode connected to said stimulation pulse output of said first demodulator circuit;
a link-up circuit for receiving said first radio frequency signal, said link-up circuit including a radio frequency trigger output;
a second radio frequency transmitter connected to said trigger output of said link-up circuit, said second radio frequency transmitter generating a second radio frequency output signal in response to the presence of a trigger input signal;
a second demodulator circuit for receiving and demodulating said second radio frequency signal, said second demodulator circuit having a stimulation pulse output; and
,a spinal cord electrode connected to said stimulation pulse output of said second demodulator circuit.
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Abstract
An artificial respirator apparatus periodically activates intercostal muscles in an organism by applying a first stimulation signal while simultaneously activating the diaphragm of the organism by applying a second stimulation signal. The intercostal muscles are stimulated according to a first set of stimulation parameters while the diaphragm is stimulated using a second set of stimulus parameters. The coordinated stimulation of the intercostal muscles and diaphragm effects artificial ventilation in the organism. The stimulation steps are substantially simultaneous and repeated between periods of non-stimulation.
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Citations
14 Claims
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1. An apparatus for electrically stimulating respiration in an organism, said apparatus comprising:
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a first radio frequency transmitter for periodically generating a first radio frequency signal; a first demodulator circuit for receiving and demodulating said first radio frequency signal, said first demodulator circuit including a stimulation pulse output; a phrenic nerve electrode connected to said stimulation pulse output of said first demodulator circuit; a link-up circuit for receiving said first radio frequency signal, said link-up circuit including a radio frequency trigger output; a second radio frequency transmitter connected to said trigger output of said link-up circuit, said second radio frequency transmitter generating a second radio frequency output signal in response to the presence of a trigger input signal; a second demodulator circuit for receiving and demodulating said second radio frequency signal, said second demodulator circuit having a stimulation pulse output; and
,a spinal cord electrode connected to said stimulation pulse output of said second demodulator circuit. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of inducing artificial ventilation in a human comprising:
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periodically generating and transmitting a first radio frequency signal; receiving and demodulating said first radio frequency signal at a first demodulation circuit; generating a first electrical output stimulation pulse and transmitting said first electrical output stimulation pulse to a phrenic nerve of a human; receiving and demodulating said first radio frequency signal at a second demodulation circuit; generating a second electrical output stimulation pulse and transmitting said second electrical output stimulation pulse to a spinal cord of said human. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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Specification