| 摘要 |
<p>An apparatus and a method for establishing a static column of gas inside a blood vessel and a system for automatically regulating the delivery and removal of the gas from the target blood vessel. The regulated gas delivery system for use with the gas-column angioscopy procedure comprises a gas reservoir (100), a pair of syringes (103, 112) operated by computer controlled electromotors (109, 118), a valve system (104, 107, 116, 117) for directing the flow of gas into and out of the system, and a catheter assembly (200) for establishing the gas-column inside the target vessel and for introducing fiber optic (215) and microsurgical devices (212) into the lumen of the target vessel.</p> |
