Manometer and method of using same
First Claim
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1. A MANOMETER ADAPTED FOR CONTINUOUS MEASUREMENT OF VENOUS PRESSURE COMPRISING A TUBULAR RESERVOIR HAVING A BORE OF SUBSTANTIAL CROSS-SECTIONAL AREA, MEANS FOR SUPPORTING SAID RESERVOIR IN AN APPROXIMATELY VERTICAL POSITION AT A DESIRED ADJUSTED HEIGHT, A HOLLOW BORE NEEDLE ADAPTED FOR INSERTION INTO A VEIN OF A PATIENT, FLEXIBLE TUBING CONNECTING THE BOTTOM OF SAID RESERVOIR WITH SAID NEEDLE, MEANS FOR SUPPORTING LIQUID TO THE INTERIOR OF THE SYSTEM CONSTITUTED BY THE RESERVOIR AND TUBING, A CALIBRATED SCALE ASSOCIATED WITH THE RESERVOIR TO INDICATE CONTINUOUSLY THE POSITION OF THE FLUID SURFACE THEREIN, AND MEANS DEFINING AN OPENING LEADING FROM SAID LIQUID SUPPLY
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1 Claim
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1. A MANOMETER ADAPTED FOR CONTINUOUS MEASUREMENT OF VENOUS PRESSURE COMPRISING A TUBULAR RESERVOIR HAVING A BORE OF SUBSTANTIAL CROSS-SECTIONAL AREA, MEANS FOR SUPPORTING SAID RESERVOIR IN AN APPROXIMATELY VERTICAL POSITION AT A DESIRED ADJUSTED HEIGHT, A HOLLOW BORE NEEDLE ADAPTED FOR INSERTION INTO A VEIN OF A PATIENT, FLEXIBLE TUBING CONNECTING THE BOTTOM OF SAID RESERVOIR WITH SAID NEEDLE, MEANS FOR SUPPORTING LIQUID TO THE INTERIOR OF THE SYSTEM CONSTITUTED BY THE RESERVOIR AND TUBING, A CALIBRATED SCALE ASSOCIATED WITH THE RESERVOIR TO INDICATE CONTINUOUSLY THE POSITION OF THE FLUID SURFACE THEREIN, AND MEANS DEFINING AN OPENING LEADING FROM SAID LIQUID SUPPLY
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Current AssigneeHarold W. Andersen
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Original AssigneeHarold W. Andersen
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InventorsAndersen, Harold W.
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Application NumberUS04/286,371Time in Patent Office1,026 DaysField of SearchUS Class Current600/487CPC Class CodesA61B 5/02152 specially adapted for venou...A61M 5/16854 by monitoring line pressure
