Analyzer of impulse processes of heart activity

A device for analyzing impulse processes of heart activity such as for determining an index of arrhythmia, comprising

• an input terminal for receiving a sequence of input pulses to be analyzed;
• a first AND gate having an input, an inverted input and an output;
• a counter having an input connected with said input terminal and a plurality of outputs;
• a multiposition switching means connected between respective outputs of said switching means and the inverted input of said first AND gate;
• signalling means connected to the inverted input of said first AND gate;
• a counting trigger having an input and two outputs;
• a first flip-flop circuit having a set and a reset input and two outputs;
• the output of said first AND gate being connected to the input of said counting trigger and to the reset input of said flip-flop circuit;
• an OR gate having an input connected to one output of said flip-flop circuit, another input connected to the inverted input of said first AND gate, and an output;
• a second AND gate having an inverted input connected to the output of said OR gate, another input and an output;
• a clock pulse generator connected to the other input of said second AND gate;
• a plurality of reading counters each having an input and a count display;
• a third AND gate, a fourth AND gate and a fifth AND gate each having two inputs and an output;
• an up-down counter having a plurality of inputs and outputs, one input of said third and fourth AND gates being connected to a respective one of the inputs of said up-down counter and to the output of said second AND gate;
• the other inputs of said third and fourth AND gates being connected to respective outputs of said counting trigger;
• a multivibrator having an input connected to the other input of said fourth AND gate and an output;
• said inputs of said UP-DOWN counter having an up counting input, a down counting input and a clearing input;
• a second flip-flop circuit having a set input and a reset input, the set input being connected to the output of said multivibrator and to said clearing input;
• a NOR gate having a plurality of inputs connected to respective outputs of said UP-DOWN counter;
• and an output connected to an input of the fifth AND gate, the other input of the latter gate being connected to the output of said third AND gate and to said down counting input;
• the output of said fifth AND gate being connected to the reset input of said second flip-flop circuit and to a second one of said reading counters;
• and the output of said second flip-flop circuit being connected to a third of said reading counters.