US 11,957,468 B2
Standardized measurement of physiological pressures using an air-charged catheter apparatus
Margot S. Damaser, Cleveland Hts., OH (US); Hassan K. Awada, Pittsburgh, PA (US); Paul C. Fletter, Mt. Prospect, IL (US); Mitchell Cooper, Jersey City, NJ (US); and Paul J. Zaszczurynski, Sycamore, IL (US)
Assigned to THE CLEVELAND CLINIC FOUNDATION, Cleveland, OH (US); and The United States Government as represented by the Department of Veterans Affairs, Washington, DC (US)
Filed by THE CLEVELAND CLINIC FOUNDATION, Cleveland, OH (US); and The United States Government as represented by the Department of Veterans Affairs, Washington, DC (US)
Filed on Jan. 14, 2020, as Appl. No. 16/742,147.
Application 16/742,147 is a division of application No. 13/623,981, filed on Sep. 21, 2012, granted, now 10,537,274.
Claims priority of provisional application 61/537,855, filed on Sep. 22, 2011.
Prior Publication US 2020/0146608 A1, May 14, 2020
Int. Cl. A61B 5/03 (2006.01); A61B 5/00 (2006.01); A61B 5/08 (2006.01); A61B 5/20 (2006.01)
CPC A61B 5/205 (2013.01) [A61B 5/036 (2013.01); A61B 5/0823 (2013.01); A61B 5/7278 (2013.01); A61B 5/742 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A method for recording a standardized pressure representing a transient pressure event inside a region of interest with an air-charged pressure sensing catheter comprising:
inserting the air-charged catheter into the region of interest;
collecting pressure data with the air-charged catheter over a time period including the transient pressure event to provide a set of pressure data;
determining a peak pressure in the set of pressure data as the difference between a maximum pressure and a baseline pressure;
calculating the standardized pressure, representing a peak pressure that would be expected for a water-filled catheter given the determined peak pressure from the set of pressure data collected with the air-charged catheter, as a function of the determined peak pressure; and
displaying at least the standardized pressure to an operator at an associated display.