Variable resistance pulmonary ventilation bypass valve and method
First Claim
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1. A flow control valve assembly for a collateral ventilation bypass system, comprising:
- at least one implantable device adapted to be connected, at a predetermined site, to at least one lung for removing trapped gases from the lung, the at least one implantable device comprising at least one conduit having first and second ends, the first end being adapted for extending into the at least one lung at a predetermined location and the second end being adapted to be positioned outside of the lung and respiratory tract of the patient, and a sealing device for establishing an airtight seal between the first end of the conduit and the lung; and
a valve assembly at least partially positioned within the at least one conduit for adjusting the flow of gases from the at least one lung through the at least one device thereby creating temporary pressure buildup in the at least one lung.
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Abstract
A collateral ventilation bypass trap system directly linked with a patient'"'"'s lung or lungs may be utilized to increase the expiratory flow from the diseased lung or lungs, thereby treating one aspect of chronic obstructive pulmonary disease. The system includes a trap, a filter/one-way valve, an air carrying conduit and a retention device for securing system elements in position. The system also includes a flow restriction device for controlling the flow of air through the air carrying conduit.
364 Citations
20 Claims
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1. A flow control valve assembly for a collateral ventilation bypass system, comprising:
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at least one implantable device adapted to be connected, at a predetermined site, to at least one lung for removing trapped gases from the lung, the at least one implantable device comprising at least one conduit having first and second ends, the first end being adapted for extending into the at least one lung at a predetermined location and the second end being adapted to be positioned outside of the lung and respiratory tract of the patient, and a sealing device for establishing an airtight seal between the first end of the conduit and the lung; and a valve assembly at least partially positioned within the at least one conduit for adjusting the flow of gases from the at least one lung through the at least one device thereby creating temporary pressure buildup in the at least one lung. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A ventilation bypass system for treating a lung of a patient comprising:
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a conduit adapted to pass through an artificial opening in a visceral membrane of a lung such that a proximal end of the conduit is external to the lung of the patient, a distal end of the conduit is inside the lung of the patient, and air present in the lung of the patient may exit the lung via the conduit; a seal being adapted around the artificial opening in the visceral membrane to prevent air from entering a pleural space around the lung at the artificial opening; and an adjustable valve assembly connected to the conduit which is adapted to adjustably restrict the exit of air from the lung through the conduit. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of controlling air flow in a ventilation bypass system, wherein the method comprises:
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(a) implanting a conduit through an artificial opening in the visceral membrane of a lung such that a proximal end of the conduit is external to the lung of the patient, a distal end of the conduit is embedded within the lung of the patient, and air present in the lung of the patient exits the lung via the conduit; (b) creating a seal around the artificial opening in the visceral membrane to prevent air from entering a pleural space around the lung from the artificial opening in the visceral membrane; and (c) providing an adjustable valve assembly connected to the conduit which is adapted to adjustably restrict the exit of air from the lung through the conduit whereby actuating the adjustable valve assembly temporarily restricts the exit of air from the lung through the conduit. - View Dependent Claims (17, 18, 19, 20)
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Specification