Variable resistance pulmonary ventilation bypass valve
First Claim
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1. A ventilation bypass system for treating a lung of a patient comprising:
- 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 around the artificial opening in the visceral membrane to prevent air from entering a pleural space around the lung at the artificial opening; and
a flow-control device connected to the conduit which is adapted to adjustably restrict the exit of air from the lung through the conduitwherein the flow-control device is adapted to be controlled by the patient.
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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.
341 Citations
19 Claims
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1. 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 around the artificial opening in the visceral membrane to prevent air from entering a pleural space around the lung at the artificial opening; and a flow-control device connected to the conduit which is adapted to adjustably restrict the exit of air from the lung through the conduit wherein the flow-control device is adapted to be controlled by the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of controlling air flow in a ventilation bypass system, wherein the method comprises:
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(a) selecting an adjustable flow control device connected to a conduit which is adapted to adjustably restrict the exit of air from the lung through the conduit whereby the actuation of the adjustable flow control device can restrict the exit of air from the lung through the conduit, which the adjustable flow control device is adapted to be controlled by the patient; and (b) 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; and (c) 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. - View Dependent Claims (11, 12, 13, 14)
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15. 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 around the artificial opening in the visceral membrane to prevent air from entering a pleural space around the lung at the artificial opening; and a flow-control device connected to the conduit which is adapted to adjustably restrict the exit of air from the lung through the conduit wherein the flow-control device is automatically controlled. - View Dependent Claims (16, 17, 18, 19)
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Specification