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Extracorporeal blood treatment apparatus

  • US 9,283,310 B2
  • Filed: 07/15/2009
  • Issued: 03/15/2016
  • Est. Priority Date: 07/16/2008
  • Status: Active Grant
First Claim
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1. An extracorporeal blood treatment apparatus comprising:

  • a blood treatment device having a blood chamber and a fluid chamber separated from one another by a semipermeable membrane;

    an extracorporeal blood circuit having a removal line for sending blood from a patient to the blood chamber, and a return line for returning the blood from the blood chamber to the patient;

    a fluid circuit connected to the fluid chamber;

    one or more sensors for measuring a value of a parameter in the extracorporeal blood circuit and in the fluid circuit;

    a user interface provided with a screen and connected to the one or more sensors;

    selecting means for enabling a user to directly set, via the screen, a first safety value and a second safety value, the first safety value being greater than a reference value of the parameter, the second safety value being less than the reference value, the reference value being a measured value of the parameter, the selecting means comprising input means for modifying the first safety value and/or the second safety value, the input means comprising a first button; and

    a control unit configured to selectively disable at least part of the selecting means if one of the safety values is reached;

    wherein the apparatus is configured such that the first button can be activated a plurality of times in succession and, at each activation, the first safety value and the second safety value are simultaneously modified by a predetermined quantity visually on the screen;

    wherein, when the first button is activated and the first safety value and the second safety value are simultaneously modified, the first safety value is increased by a predetermined quantity and the second safety value is decreased by a predetermined quantity; and

    wherein the input means further comprises a second button, a third button and a fourth button, wherein, when the second button is activated, the first safety value is decreased by a predetermined quantity and the second safety value is increased by a predetermined quantity, and wherein, when the third button is activated, the first safety value is decreased by a predetermined quantity and the second safety value is decreased by a predetermined quantity, and wherein, when the fourth button is activated, the first safety value is increased by a predetermined quantity and the second safety value is increased by a predetermined quantity.

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