Methods and devices to assist pulmonary decompression
US7533667B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 20, 2004 |
| Grant date | May 19, 2009 |
| Priority date | — |
| Expiry date | Oct 13, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2202/03
- 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. 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. 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.