Infusion pump

• US 3,137,242 A
• Filed: 01/22/1962
• Issued: 06/16/1964
• Est. Priority Date: 01/22/1962
• Status: Expired due to Term

• Current Assignee: William Hahn George
• Original Assignee: William Hahn George
• Inventors: WILLIAM HAHN GEORGE
• Application Number:
  US04/167,820
• Time in Patent Office: 876 Days
• US Class Current: 417/477.7
• CPC Class Codes: A61M 5/142 Pressure infusion, e.g. using pumps
• CPC Class Codes: F04B 43/1276 Means for pushing the rollers against the tubular flexible member

Claims

1. IN AN INFUSION PUMP FOR MEDICAMENTS HAVING A BASE PLATE AND A PAIR OF VERTICAL PARALLEL WALLS ALONG ONE SIDE DEFINING A HOUSING, AND A VERTICAL PANEL ARRANGED ALONG AN END OF SAID BASE AT RIGHT ANGLES TO SAID HOUSING, THE COMBINATION COMPRISING, A FACE PANEL ON THE OUTER WALL OF SAID HOUSING HAVING A CIRCULAR RECESS THEREIN AND A GROOVE FORMED PERIPHERALLY OF SAID RECESS, A FLEXIBLE TUBE ARRANGED IN SAID GROOVE AND HAVING FLUID INLET AND OUTLET ENDS, A CIRCULAR DISK ROTATIVELY MOUNTED CONCENTRICALLY OF SAID RECESS, A PLURALITY OF ARMS PIVOTALLY ATTACHED INTERMEDIATE THEIR ENDS TO SAID DISK ABOUT THE PERIPHERY THEREOF, AND A ROLLER PIVOTED TO THE OUTER END OF EACH OF SAID ARMS ENGAGEABLE WITH SAID TUBE IN SAID GROOVE TO COMPRESS SAID TUBE PROGRESSIVELY ABOUT SAID GROOVE, A PULLEY PIVOTED ON THE INNER END OF EACH OF SAID ARMS, AN ENDLESS PULL SPRING COLLECTIVELY EMBRACING SAID PULLEYS CONNECTING THE INNER ENDS OF SAID ARMS FOR EXERTING TENSION THEREON, AND A VARIABLE SPEED MOTOR FOR ROTATING SAID DISK AND SAID ARMS THEREON.