Triggering of patient ventilator responsive to a precursor signal
First Claim
1. A method for ventilating a person, comprising the steps of:
- providing a ventilator operable to ventilate a person responsive to a trigger signal, and a controller that outputs a trigger signal to the ventilator;
providing a nasal sensor;
affixing the nasal sensor to the nare of the person;
producing a nasal sensor output signal of the nasal sensor responsive to the movement of the nare of the person; and
providing the nasal sensor output signal to the controller for use in generating the trigger signal.
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Accused Products
Abstract
A ventilator is operable to ventilate a patient responsive to a trigger signal. A nasal sensor is affixed to the external surface of the nose of the person. A nasal sensor output signal is produced responsive to the alae nasi reflex or other source of nasal movement of the person, and that nasal sensor output signal is provided to a controller, which in turn produces a trigger signal for the ventilator responsive to the nasal sensor output signal. Other sensor signals can also be measured, and used together with the output of the nasal sensor to provide the most reliable triggering and closest synchronization of the mechanical breathing assistance of the ventilator to the spontaneous breathing efforts of the person.
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Citations
13 Claims
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1. A method for ventilating a person, comprising the steps of:
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providing a ventilator operable to ventilate a person responsive to a trigger signal, and a controller that outputs a trigger signal to the ventilator; providing a nasal sensor; affixing the nasal sensor to the nare of the person; producing a nasal sensor output signal of the nasal sensor responsive to the movement of the nare of the person; and providing the nasal sensor output signal to the controller for use in generating the trigger signal. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for ventilating a person, comprising the steps of:
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providing a ventilator operable to ventilate a person responsive to a trigger signal, and a controller that outputs a trigger signal to the ventilator; providing a nasal sensor; affixing the nasal sensor to a hare of the person; providing a second sensor; producing a second sensor output signal responsive to a spontaneous breath of the person; utilizing the nasal sensor and the second sensor to determine a trigger time at which the trigger signal is to be transmitted by the controller to the ventilator; and transmitting the trigger signal from the controller to the ventilator at the trigger time. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification