Intra-thoracic collateral ventilation bypass system

• US 20040244803A1
• Filed: 05/24/2004
• Published: 12/09/2004
• Est. Priority Date: 06/05/2003
• Status: Active Grant

• Current Assignee: Portaero, Inc
• Original Assignee: Portaero, Inc
• Inventors: Tanaka, Don
• Granted Patent: US 7,377,278 B2
• Time in Patent Office: Days
• US Class Current: 128/207.16
• CPC Class Codes: A61M 16/0009 with sub-atmospheric pressure, e.g. during expiration
• CPC Class Codes: A61M 16/021 operated by electrical means A61M16/202 – A61M16/205 take precedence
• CPC Class Codes: A61M 16/0406 implanted flow modifiers
• CPC Class Codes: A61M 16/101 using an oxygen concentrator
• CPC Class Codes: A61M 16/107 in the inspiratory path
• CPC Class Codes: A61M 2202/0007 introduced into the body
• CPC Class Codes: A61M 2202/0208 Oxygen
• CPC Class Codes: A61M 2202/03 Gases in liquid phase, e.g. cryogenic liquids
• CPC Class Codes: A61M 39/0247 Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body peritoneal dialysis catheters A61M1/285; tracheostomy devices A61M16/0465; measuring pressure within the body A61B5/03; colostomy devices A61F5/445; gastrotomy feeding tubes A61J15/0015; means for fixing a feeding tube outside of the body A61J15/0053

Abstract

A long term oxygen therapy system having an oxygen supply directly linked with a patient'"'"'s lung or lungs may be utilized to more efficiently treat hypoxia caused by chronic obstructive pulmonary disease such as emphysema and chronic bronchitis. The system includes an oxygen source, one or more valves and fluid carrying conduits. The fluid carrying conduits link the oxygen source to diseased sites within the patient'"'"'s lungs. 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 another aspect of chronic obstructive pulmonary disease. The system includes a trap, a filter/one-way valve and an air carrying conduit. In various embodiments, the system may be intrathoracic, extrathoracic or a combination thereof. A pulmonary decompression device may also be utilized to remove trapped air in the lung or lungs, thereby reducing the volume of diseased lung tissue. A lung reduction device may passively decompress the lung or lungs. In order for the system to be effective, an airtight seal between the parietal and visceral pleurae is required. Chemical pleurodesis is utilized for creating the seal.

Claims

1. An intra-thoracic collateral ventilation bypass system comprising:

at least one conduit having first and second ends, the first end being in fluid communication with an airway in proximity to a trachea of a patient and the second end being in fluid communication with the inner volume of a lung of a patient at a predetermined site;

a first sealing device for establishing an airtight seal between the conduit and the airway; and

a second sealing device for establishing an airtight seal between the conduit and the lung.

2. A method for decompressing a hyperinflated portion of a lung of a patient comprising:

determining a site of hyperinflation in a patient'"'"'s lung; and

bypassing non-patent airways utilizing a device in communication with a hyperinflated portion of a patient'"'"'s lung and an airway proximate a patient'"'"'s trachea.