Combined positive and negative pressure assist ventilation
First Claim
1. A method of delivering combined positive and negative pressure assist ventilation to a patient, comprising:
- detecting neural inspiratory activation of the patient;
applying a positive pressure to the patient'"'"'s airways to inflate the patient'"'"'s lungs;
applying a negative pressure around the patient'"'"'s ribcage and/or abdomen in order to reduce a load imposed by the ribcage and/or abdomen on the patient'"'"'s lungs; and
controlling application of the positive and negative pressures in response to the detected neural inspiratory activation of the patient;
wherein controlling application of the positive and negative pressures comprises controlling a level of the positive pressure applied to the patient'"'"'s airways as a function of the detected neural inspiratory activation of the patient.
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Accused Products
Abstract
The present invention relates to a method of delivering combined positive and negative pressure assist ventilation to a patient, wherein a positive pressure is applied to the patient'"'"'s airways to inflate the patient'"'"'s lungs, a negative pressure is applied around the patient'"'"'s ribcage and/or abdomen in order to reduce a load imposed by the ribcage and/or abdomen on the patient'"'"'s lungs, and application of the positive and negative pressures is synchronized. The present invention also relates to a system for delivering combined positive and negative pressure assist ventilation to a patient, comprising a positive pressure ventilator connected to the patient'"'"'s airways for applying a positive pressure to the patient'"'"'s airways to inflate the patient'"'"'s lungs, a negative pressure ventilator installed on the patient'"'"'s ribcage and/or abdomen for applying a negative pressure around the patient'"'"'s ribcage and/or abdomen in order to reduce a load imposed by the ribcage and/or abdomen on the patient'"'"'s lungs, and a controller for synchronizing operation of the positive and negative pressure ventilators.
48 Citations
47 Claims
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1. A method of delivering combined positive and negative pressure assist ventilation to a patient, comprising:
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detecting neural inspiratory activation of the patient; applying a positive pressure to the patient'"'"'s airways to inflate the patient'"'"'s lungs; applying a negative pressure around the patient'"'"'s ribcage and/or abdomen in order to reduce a load imposed by the ribcage and/or abdomen on the patient'"'"'s lungs; and controlling application of the positive and negative pressures in response to the detected neural inspiratory activation of the patient; wherein controlling application of the positive and negative pressures comprises controlling a level of the positive pressure applied to the patient'"'"'s airways as a function of the detected neural inspiratory activation of the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A system for delivering combined positive and negative pressure assist ventilation to a patient, comprising:
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a sensor of neural inspiratory activation of the patient; a positive pressure ventilator connected to the patient'"'"'s airways for applying a positive pressure to the patient'"'"'s airways to inflate the patient'"'"'s lungs; a negative pressure ventilator installed on the patient'"'"'s ribcage and/or abdomen for applying a negative pressure around the patient'"'"'s ribcage and/or abdomen in order to reduce a load imposed by the ribcage and/or abdomen on the patient'"'"'s lungs; and a controller connected to the sensor of neural inspiratory activation and to the positive and negative pressure ventilators for controlling application of the positive and negative pressures in response to the neural inspiratory activation detected by the sensor; wherein the controller is responsive to the neural inspiratory activation detected by the sensor to control a level of positive pressure applied by the positive pressure ventilator. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
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44. A system for delivering combined positive and negative pressure assist ventilation to a patient, comprising:
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means for detecting neural inspiratory activation of the patient; first means for applying a positive pressure to the patient'"'"'s airways to inflate the patient'"'"'s lungs; second means for applying a negative pressure around the patient'"'"'s ribcage and/or abdomen in order to reduce a load imposed by the ribcage and/or abdomen on the patient'"'"'s lungs; and means connected to the first and second pressure applying means for controlling application of the positive and negative pressures in response to the detected neural inspiratory activation; wherein the means for controlling are responsive to the detected neural inspiratory activation to control a level of positive pressure applied by the positive pressure ventilator. - View Dependent Claims (45, 46, 47)
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Specification