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CONDITIONAL REQUIRED PRIMING

  • US 20160213849A1
  • Filed: 09/18/2014
  • Published: 07/28/2016
  • Est. Priority Date: 09/20/2013
  • Status: Abandoned Application
First Claim
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1. An apparatus for ejecting a fluid,having a control unit (510) for controlling the apparatus, the control unit (510) being configured to control fluid dose ejection steps, during which a fluid dose is ejected from a fluid reservoir through an ejection channel,wherein the control unit (510) is further configured to determine a priming time length (Tprime), the priming time length (Tprime) being the length of time since the last ejection of a fluid volume through the ejection channel,wherein the control unit (510) is further configured to perform a priming test step (612-618) comprising the steps of:

  • determining whether the priming time length (Tprime) is longer than a predefined priming threshold time length (Tthreshold), andsetting the apparatus into a status, in which a further fluid dose ejection step is only allowed after execution of an ejection channel priming step (622-628) if the priming time length (Tprime) is longer than the priming threshold time length (Tthreshold).

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