Surgery – Truss – Pad
Patent
1993-06-14
1995-07-18
Hindenburg, Max
Surgery
Truss
Pad
128780, A61B 5103
Patent
active
054332168
ABSTRACT:
An improved tonometric catheter can be configured to have one or more pressure transmitting chambers for sensing the internal pressure such as the internal abdominal pressure of a subject. The tonometric catheter is inserted into the patient such as a nasogastric catheter. The pressure sensing chamber in the form of a balloon is insufflated with a pressure transmitting medium when the balloon is in the desired location. After insufflation of the chamber the catheter is connected to a pressure transducer or manometer which then provides an output reading the internal pressure of the subject. The tonometric catheter with a pressure sensing chamber is useful for sensing the internal abdominal pressure such as during laparoscopic surgery. The sensing of internal pressure can also be used at other locations along the gut or in the cranium. The monitoring of internal pressure is also useful in conjunction with the monitoring of internal pH. The monitored internal pressure can be used to calculate a correction factor which is in turn applied to the calculation of pHi from the measured concentration of gases inside the subject. The pressure sensing chamber can also be used as a location device to ensure the proper location of the chamber and hence the related apparatus on a catheter.
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Boyle, III Charles C.
Buist Michael
Sugrue Michael
Hindenburg Max
Mountpelier Investments, S.A.
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