Intra/extra-thoracic collateral ventilation bypass system and method
US7426929B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 12, 2004 |
| Grant date | Sep 23, 2008 |
| Priority date | — |
| Expiry date | Jul 26, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2210/1039
- WIPO fieldMedical technology
- WIPO sectorInstruments
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. 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.