POSITIVE PRESSURE SYSTEMS AND METHODS FOR INCREASING BLOOD PRESSURE AND CIRCULATION
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Accused Products
Abstract
In one embodiment, the invention provides a medical method for treating a person and comprises repeatedly compressing the person'"'"'s chest. While repeatedly compressing the person'"'"'s chest, the method further includes repeatedly delivering a positive pressure breath to the person and extracting respiratory gases from the person'"'"'s airway using a vacuum following the positive pressure breath to create an intrathoracic vacuum to lower pressures in the thorax and to enhance blood flow back to the heart.
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Citations
55 Claims
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1-40. -40. (canceled)
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41. A medical method for treating a person, the method comprising:
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interfacing a threshold valve with the person'"'"'s airway, wherein the threshold valve is configured to open when the person'"'"'s negative intrathoracic pressure reaches about −
3 cm H2O to about −
20 cm H2O to permit respiratory gases to flow into the person'"'"'s airway;repetitively compressing the person'"'"'s chest to provide a compression phase where the chest is compressed and a decompression phase where the chest is actively lifted using an active chest compression/decompression device; while repeatedly compressing and lifting the person'"'"'s chest, extracting respiratory gases from the person'"'"'s airway using a vacuum generated when actively lifting the chest with the active chest compression/decompression device while the threshold valve is interfaced with the person'"'"'s airway to create an intrathoracic vacuum to lower pressures in the thorax; wherein the level of the negative intrathoracic pressure is repetitively lowered over at least two successive chest decompressions, and wherein use of the active chest compression/decompression device and the threshold valve generates an intrathoracic pressure that rapidly decreases as the person'"'"'s chest is actively lifted. - View Dependent Claims (42, 43, 44, 45)
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46. A medical method for treating a person, the method comprising:
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interfacing a threshold valve with the person'"'"'s airway, wherein the threshold valve is configured to open when the person'"'"'s negative intrathoracic pressure reaches about −
3 cm H2O to about −
20 cm H2O to permit respiratory gases to flow into the person'"'"'s airway;repetitively compressing the person'"'"'s chest to provide a compression phase where the chest is compressed and a decompression phase where the chest is actively lifted using an active chest compression/decompression device; while repeatedly compressing and lifting the person'"'"'s chest, extracting respiratory gases from the person'"'"'s airway using a vacuum generated when actively lifting the chest with the active chest compression/decompression device while the threshold valve is interfaced with the person'"'"'s airway to create an intrathoracic vacuum to lower pressures in the thorax; wherein the level of the negative intrathoracic pressure is repetitively lowered over at least two successive chest decompressions. - View Dependent Claims (47, 48, 49, 50)
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51. A medical method for treating a person, the method comprising:
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interfacing a threshold valve with the person'"'"'s airway, wherein the threshold valve is configured to open when the person'"'"'s negative intrathoracic pressure reaches about −
3 cm H2O to about −
20 cm H2O to permit respiratory gases to flow into the person'"'"'s airway;repetitively compressing the person'"'"'s chest to provide a compression phase where the chest is compressed and a decompression phase where the chest is actively lifted using an active chest compression/decompression device; while repeatedly compressing and lifting the person'"'"'s chest, extracting respiratory gases from the person'"'"'s airway using a vacuum generated when actively lifting the chest with the active chest compression/decompression device while the threshold valve is interfaced with the person'"'"'s airway to create an intrathoracic vacuum to lower pressures in the thorax; wherein use of the active chest compression/decompression device and the threshold valve generates an intrathoracic pressure that rapidly decreases as the person'"'"'s chest is actively lifted. - View Dependent Claims (52, 53, 54, 55)
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Specification