Endoscopic inflatable retraction devices and method of making

摘要

The present invention provides an apparatus (3) for providing a retraction force from outside the body to retract first tissue (e.g. L) inside the body to gain access to adjacent tissue (e.g. GB), comprising inflatable chamber means (8) for engaging the first tissue and a shaft means (13) for manipulating the chamber means, the inflatable chamber means (8) being defined by an envelope (18) and the envelope is rolled when the chamber means is in its collapsed state.