Blood pressure follower

• US 3,143,111 A
• Filed: 09/23/1960
• Issued: 08/04/1964
• Est. Priority Date: 09/23/1960
• Status: Expired due to Term

• Current Assignee: John H. Green
• Original Assignee: John H. Green
• Inventors: Green, John H.
• Application Number:
  US04/058,115
• Time in Patent Office: 1,411 Days
• US Class Current: 604/66
• CPC Class Codes: A61B 5/02141 Details of apparatus construction, e.g. pump units or housings therefor, cuff pressurising systems, arrangements of fluid conduits or circuits A61B5/02233, A61B5/0235 take precedence
• CPC Class Codes: A61B 5/0225 the pressure being controlled by electric signals, e.g. derived from Korotkoff sounds

Claims

1. A SYSTEM FOR THE CONTINUOUS CONTROL OF BLOOD PRESSURE IN A DIGIT COMPRISING A CUFF FOR APPLICATION TO A PORTION OF SAID DIGIT AND INCLUDING FLEXIBLE INFLATABLE MEANS, PNEUMATIC PRESSURE MEANS CONNECTED TO SAID INFLATABLE MEANS, A PRESSURE TRANSDUCER WITHIN SAID CUFF ADJACENT TO SAID DIGIT FOR PRODUCING A SIGNAL IN RESPONSE TO EACH ARTERIAL PULSATION IN SAID DIGIT, A NORMALLY CLOSED AIR VALVE BETWEEN SAID PNEUMATIC PRESSURE MEANS AND SAID INFLATABLE MEANS, MEANS CONTROLLED BY SAID TRANSDUCER FOR TEMPORARILY OPENING SAID VALVE IN RESPONSE TO EACH OF SAID SIGNALS PRODUCED BY SAID TRANSDUCER, MEANS CONNECTED TO SAID INFLATABLE MEANS FOR INDICATING THE PRESSURE THEREIN, AT LEAST ONE DRUG CONTAINER, MEANS FOR CONTROLLING THE FLOW OF DRUGS FROM SAID CONTAINER, AN ADJUSTABLE PRESSURE ACTUATOR CONNECTED TO SAID MEANS FOR CONTROLLING THE FLOW OF SAID DRUGS, AND MEANS CONNECTING SAID PRESSURE ACTUA-