CONDITIONAL REQUIRED PRIMING
First Claim
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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Accused Products
Abstract
The invention relates to 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 and 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); and setting 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).
11 Citations
15 Claims
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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), and setting 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). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification