Control device for a medical test system

摘要

The invention concerns a control device for a medical test system which has a lancing element that can be inserted into body tissue to collect body fluid and a lancing drive for the lancing element. A sensor element for body fluid is arranged on the lancing element and a control unit is coupled to the sensor element for detecting a fault when collecting body fluid. In order to improve the success rate, the control unit actuates the lancing drive for an automatic puncture repetition in less than 1 second when a fault, e.g., inadequate wetting of a detection field, occurs.

主权项

1. A medical test system, comprising:
a lancing element that can be inserted into body tissue to collect body fluid; a lancing drive for the lancing element; a sensor element for body fluid, the sensor element being arranged on the lancing element and generating a control signal responsive to the presence of body fluid wherein the control signal indicates whether body fluid is present or absent; and a control unit coupled to the sensor element, the control unit configured for detecting the control signal, the control unit further programmed to determine whether a sufficient amount of body fluid has been collected or a fault in the collection of body fluid has occurred; wherein, when a fault in the collection of body fluid is determined to have occurred by the control unit after a first reciprocating lancing movement, the control unit actuates the lancing drive in an automatic second reciprocating lancing movement, the first and second reciprocating lancing movements having a repetition interval of less than 1 second, and wherein the repetition interval defines a non-zero time period beginning with initiation of the first reciprocating lancing movement and concluding with initiation of the second reciprocating lancing movement; when the control unit determines that a sufficient amount of body fluid has been collected after the first reciprocating lancing movement, the body fluid is evaluated by the control unit without conducting a second reciprocating lancing movement; and when the control unit actuates the lancing drive in an automatic second reciprocating lancing movement, the control unit makes a second determination whether a sufficient amount of body fluid has been collected or a fault in the collection of body fluid has occurred after the passage of a second non-zero time period following the second reciprocating lancing movement and wherein the control unit evaluates the body fluid if the second determination finds that a sufficient amount of body fluid has been collected after the second reciprocating lancing movement and wherein the control unit generates an error message if the second determination finds that a fault in the collection of body fluid has occurred after the second reciprocating lancing movement.