Methods and devices for obstructing and aspirating lung tissue segments
US6527761B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2000 |
| Grant date | Mar 4, 2003 |
| Priority date | — |
| Expiry date | Dec 13, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/22068
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Methods, systems, devices and kits for performing lung volume reduction in patients suffering from chronic obstructive pulmonary disease or other conditions using and comprising minimally invasive instruments introduced through the mouth (endotracheally) to isolate a target lung tissue segment from other regions of the lung and reduce lung volume. Isolation is achieved by deploying an obstructive device in a lung passageway leading to the target lung tissue segment. Once the obstructive device is anchored in place, the segment can be aspirated through the device. This may be achieved by a number of methods, including coupling an aspiration catheter to an inlet port on the obstruction device and aspirating through the port. Or, providing the port with a valve which allows outflow of gas from the isolated lung tissue segment during expiration of the respiratory cycle but prevents inflow of air during inspiration. In addition, a number of other methods may be used. The obstructive device may remain as an implant, to maintain isolation and optionally allow subsequent aspiration, or the device maybe removed at any time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.