We have designed and developed the first valuable automated ankle-brachial index measuring device (ABPI MD), based on oscillometric method (one of the plethysmographic techniques). The blood pressure on the upper and lower extremities is measured simultaneously, resulting in the calculation of the ankle-brachial index (ABI). The result of the examination is clear and straight forward. Only what is really important â the left ABI, right ABI and brachial blood pressure â are displayed.