Disposable physiological pressure sensing system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Oct 8, 1985
Grant Date -
N/A
app pub date -
Jul 14, 1982
filing date -
Jul 14, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A physiological pressure sensing and monitoring system including a sterile throwaway pressure transducing device. The device includes a pressure transducer mounted together with a flow control valve in a housing. The device includes a first connector for connecting the device to a source of sterile solution, a second connector for electrically connecting the pressure transducer to a monitoring device, and a third connector for selectively connecting the device to a catheter 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 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 is formed as a one-piece unit. In a number of the embodiments, the elements are formed separately and bonded together.
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