| 摘要 |
<p>A valve ( 10 ) comprises a housing ( 12 ) with a valve element ( 14 ) which normally fluidicly couples a low pressure operating device, such as a transducer ( 30 ) and tubing ( 34 ) to be coupled to a patient ( 36 ) along a first flow path ( 42 ) including a flexible control wall ( 58 ) which normally interrupts a second flow path ( 72 ) between a high pressure generating source such as an injector syringe ( 32 ) and the tubing ( 34 ), but which flexes, in response to high pressure excursions from the syringe ( 32 ) to allow the second flow path ( 72 ) to open as it flexes into the first flow path ( 42 ) to thereby restrict same thus providing protection to the transducer ( 30 ) during the high pressure excursion from the syringe ( 32 ).</p> |
