| 摘要 |
A cardiac assist envelope for endoscopic application to permit the anatomic insertion of the envelope through an endoscopic cannula in which the body of the envelope is formed of a flexible but inelastic material and has form shaping spring elements embedded in the material to allow for folding of the envelope for endoscopic insertion and spring back of the material to a configuration necessary for cardiac assist function through a single driver conduit with shuttle gas flow divisions.
|
