| 摘要 |
A blood processing system ( 2 ), includes a housing ( 4 ), to which a user control panel is mounted, having an access opening ( 47 ) therein. A cassette assembly ( 22 ), mounted to the housing for movement between a use position covering the access opening and a cassette-replacement position, includes a cassette holder and cassette ( 26 ) removably mounted to the holder. The cassette includes in part by tubing aligned with a through-hole ( 45 ) in the cassette. A door ( 34 ) is mounted to the housing for movement between a latched position, capturing the cassette between the panel and the door, and a released position. Independently-driven roller assemblies ( 46, 54, 72 ) pass part-way through the access opening to capture first tubing portions ( 44 A, 52 A, 68 A) between the roller tracks ( 100, 102, 104 ) and the roller assemblies for peristaltic pumping of fluid. A number of movable pinch elements ( 48, 80, 90, 96 ) are extendable through the front panel to selectively pinch the tubing against the door and thus seal the tubing. |
