High pressure medical injection direct from a fluid containing ampule

• US 3,198,385 A
• Filed: 09/06/1962
• Issued: 08/03/1965
• Est. Priority Date: 09/06/1962
• Status: Expired due to Term

• Current Assignee: Palmer M. Maxwell
• Original Assignee: Palmer M. Maxwell
• Inventors: Maxwell, Palmer M.
• Application Number:
  US04/221,775
• Time in Patent Office: 1,062 Days
• US Class Current: 604/131
• CPC Class Codes: A61M 2230/06 Heartbeat rate only
• CPC Class Codes: A61M 5/148 flexible, e.g. independent bagsA61M5/155 takes precedence
• CPC Class Codes: A61M 5/282 by compression of deformable ampoule or carpule wall
• CPC Class Codes: Y10S 128/12 Pressure infusion

Claims

1. APPARATUS FOR THE CONTROLLED EJECTION OF FLUID COMPRISING, IN COMBINATION, AN AMPULE HAVING TWO ENDS AND A HOLLOW INTERIOR FILLED WITH SAID FLUID, A SOLID RECTANGULAR LEADER ATTACHED TO AND EXTENDING FROM ONE END OF THE AMPULE, A HOLLOW TUBE EXTENDING FROM THE END OF THE AMPULE OTHER THAN THAT TO WHICH THE SOLID LEADER IS ATTACHED AND HAVING ITS HOLLOW INTERIOR FILLED WITH SAID FLUID AND JOINED TO THE HOLLOW INTERIOR OF THE AMPULE, MEANS FOR CLOSING THAT END OF THE HOLLOW TUBE REMOTE FROM THE AMPULE, TWO CYLINDRICAL ROLLERS ENGAGING OPPOSITE SIDES OF THE SOLID LEADER AND HAVING THEIR CENTERS OF ROTATION PARALLEL TO EACH OTHER IN THE SAME PLANE, MEANS FOR ROTATING ONE CYLINDRICAL ROLLER IN A CLOCKWISE DIRECTION WHILE ROTATION THE OTHER CYLINDRICAL ROLLER IN A COUNTER-CLOCKWISE DIRECTION SO AS TO IMPART MOTION TO THE