Apparatus and method for classifying the motion of a movable treatment device

An apparatus (10, 100) for classifying a motion of a movable treatment device (11), the movable treatment device (11) comprising at least one inertial sensor (13), the apparatus (10) comprising:

• a motion pattern classification device (14) configured to discriminate between at least two motion classes (151, 152, 153, . . . , 15k) contained in a set (15) of motion classes of the movable treatment device (11), and
• an interface (16) for providing at least one inertial sensor data (171, 172, 173, . . . , 17n) from the inertial sensor (13) to the motion pattern classification device (14), the at least one inertial sensor data (171, 172, 173, . . . , 17n) representing a movement of the movable treatment device (11),
• wherein the motion pattern classification device (14) comprises at least one neural network (18) configured to receive the at least one inertial sensor data (171, 172, 173, . . . , 17n) and to classify the at least one inertial sensor data (171, 172, 173, . . . , 17n) with respect to the motion classes (151, 152, 153, . . . , 15k) contained in the set (15) of motion classes, and wherein each of said motion classes (151, 152, 153, . . . , 15k) is associated with at least one class member (101A, 101B, 102A, 102B, . . . , nA, nB) of one or more classes (101, 102, 103, 104) so that the at least one class member (101A, 101B, 102A, 102B, . . . , nA, nB) is selected based on the motion of the movable treatment device (11).