Therapy device

Therapy device, particularly an implantable cardiac pacemaker, cardioverter, combined pacemaker/cardioverter (101) or medication-dosing device (201), having at least one sensor (103;

• 203) for detecting a variable that can be measured in the application of a predetermined therapy in or on the body of a patient (P) and that particularly characterizes the physical state of the patient, and for outputting a corresponding measured value, the device further having an evaluating and control device (110, 111;
• 209) that can be at least indirectly connected to the output of the sensor for evaluating the measured value, including its association with one of at least two predetermined value ranges and for determining a therapy control variable as a function thereof, and further having a therapy device (111.3, 111.4, 112;
• 212), which can be configured for realizing different therapies or therapy variables as a function of the association of the value of the measured variable with one of the value ranges, characterized in that the evaluating and control device includes
• a range-limit memory (115;
• 209.3) for storing at least two different limits between two value ranges of the measured variable, and thus at least one overlap zone between the value ranges,
• a first comparator unit (110.1;
• 209.2) that is at least indirectly connected to the sensor (103;
• 203) and, by way of a further input, to the range-limit memory (115;
• 209.3) for associating the measured value of the variable with one of the value ranges,
• a therapy memory (111.2;
• 211) having at least two separately-addressable memory regions for storing at least two different values of the therapy-control variable in association with the values of the measured variable within an overlap zone, together with a predetermined conditional variable that represents the past history of a measured variable or the therapy, and further memory regions for respectively storing a value of the therapy-control variable, in association with a value of the measured variable, outside of an overlap zone,
• a past-history memory (117;
• 209.8) for storing the range association of the respectively previous value of the measured variable or of the therapy-control variable of a previously-applied therapy as a conditional variable, and
• past-history evaluation means (118;
• 209.9) for evaluating the stored value with the predetermined values of the conditional variable, and for transmitting address data that express the evaluation result to the therapy memory for precisely reading out a value of the therapy-control variable.