Cyber Technology, Inc.

Image Acquisition, Reconstruction, and Presentation

All renditions (C) Wolfram R. Jarisch, 2003

Physical Beating Heart Model

An electric hydraulic pump perfused this plastic model rhythmically within a closed circuit waterbath.
At several locations artificial stenoses are visible as red plastic inserts within the translucent tubes.

By design the central balloon expanded with every beat and caused about 10 percent change of the
distance between the tubes. The system was controlled by a computer that directed the data acquisition
(single lead "EKG" and 2 X-ray video cameras) as well as the timing of the dye injection. The beat rate
 ("HR") was random between 60 and 62 BPM
(electric blinker relay, powered by battery charger).


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