Flow meter for parenteral solutions

Abstract

Abstract A FLOW METER FOR MEASURING THE RATE OF INTRAVENOUS INFUSION OF PARENTERAL SOLUTIONS. THE FLOW METER INCLUDES A PLURALITY OF CHAMBERS INTERCONNECTED ONE WITH ANOTHER IN A SERIES RELATIONSHIP SUCH THAT A SOLUTION FLOWS DOWNWARNDLY FROM A CONTAINER SUPPLYING THE SAME INTO AND THROUGH A DRIP CHAMBER AND UPWARDLY THEREFROM THROUGH A MEASURING CHAMBER FOR DELIVERY TO A PATIENT. THE DRIP CHAMBER ENABLES THE SOLUTION DELIVERED THERETO TO BE COUNTED DROP BY DROP, AND IT HAS A RESTRICTED VOLUME ADJACENT ITS LOWER END ENABLING SUCH END OF THE CHAMBER TO FILL QUICKLY. THE MEASURING CHAMBER HAS A GENERALLY LOGARITHMIC CURVATURE FROM END TO END THEREOF COOPERATIVE WITH A BALL-SHAPED RESTRICTOR MOUNTED THEREWITH WHICH IS MOVABLE ALONG THE MEASURING CHAMBER AND DEFINES A FLOW INDICATOR, THE POSITION OF WHICH WITHIN THE CHAMBER IS DETERMINED BY THE FLOW RATE THERETHROUGH. THE FLOW RATE CAN BE VARIED BY ADJUSTING A METERING CLAMP MOUNTED ON A COMPRESSIBLE TUBE THROUGH WHICH FLUID IS CARRIED TO A PATIENT.

Inventors

• 👤 Bob L Smith

Bibliographic Details