| 摘要 |
The pressure sensor assembly (10) constitutes a pressure detection section of a driver mechanism for driving a disposable pumping cassette (22) comprising, a rod (12) having an end (24) contacting the cassette pressure detection section and being adapted to move in response to changes of pressure in the cassette (22). First and second flexible supports (14, 16) support the rod (12) and flex in response to movement of the rod (12). A strain gauge (18) is associated with one of the supports (16) for monitoring flexural movement thereof, whereby pressure changes in the liquid (20) within the cassette (22) can be monitored by monitoring the strain guage (18). |
