| 摘要 |
<p>A physiological pressure sensing and monitoring system (10) including a sterile throwaway pressure transducing device (11). The device (11) includes a pressure transducer (16) mounted together with a flow control valve (14) in a housing (12). The device includes a first connector (21) for connecting the device to a source of sterile solution (18), a second connector (28) for electrically connecting the pressure transducer to a monitoring device (26), and a third connector (22) for selectively connecting the device to a catheter (33) inserted into a patient"s circulatory system. The device, including the connectors, is made to be low cost so as to permit the entire device to be installed and discarded as a unit so as to constitute a throwaway pressure sensing and flow regulating means. A number of different embodiments of the pressure transducer are disclosed, each of which constitutes a low cost, accurate pressure transducing means arranged to have high electrical isolation relative to the fluid in a pressure chamber (13) of the housing, the pressure of which is continuously sensed by the transducer. In one embodiment, the force collector for transmitting the pressure force to the strain gage (55) is formed as a one-piece unit. In a number of the embodiments, the elements are formed separately and bonded together. </p> |
