University of Pennsylvania

Bryan E Marshall

C William Hanson, Iii

Carol Marshall

James E Baumgardner

Gordon R Neufeld

Fred Frasch

Carl Medsker

A gas measurement probe for measuring gas tensions in liquid. The probe comprises a tubing having one end adapted for connection to a gas measurement device, such as a mass spectrometer, a gas chromatograph, an infrared spectrometer or a Raman spectrometer, among others. The second end of the probe is provided with a tip having at least one pore formed in it. The pore is filled with a membrane material which eliminates water from entering, but admits low molecular weight gases. These low molecular weight gases may then be identified by the measurement device.

Probe for the measurement of gas tensions

This invention describes a patient monitoring system which creates graphical displays of various pulmonary and other patient functions so that physicians and clinicians can quickly and accurately make decisions about the patient's care based on the graphical displays while in the intensive care unit. Patient functions are monitored and pulmonary models are implemented to graphically reveal relationships between the basic information input to the system from monitoring devices and the models so that physicians can utilize the revealed relationships to make informed accurate diagnoses and design therapeutic plans concerning the patient.

Intensive care information graphical display

A method and apparatus for unifying the pressure/flow and ventilation perfusion ratios is disclosed. The method comprises the following steps: determining the initial health condition of a patient so as to define a pulmonary pressure flow curve for each of a plurality of lung compartments of said patient; applying a stimulus of hypoxic pulmonary vasoconstriction to the pressure flow curve for each compartment to obtain a pressure flow curve for each of said plurality of compartments; and deriving a pulmonary artery pressure value corresponding to a ventilation/perfusion ratio that satisfies both the individual and total pressure flow requirements for said pulmonary pressure/flow curves.

Growing community of inventors

Wynnewood, PA, United States of America

Bryan E Marshall