Meridian Co Ltd is an investment holding company mainly engaged in the manufacturing and sale of medical devices. The main products are digital arterial pulse-wave analyzers (DPAs). The DPAs are equipped with accelerated plethysmograph (APG) and plethysmograph (PTG). DPAs provide analysis of pulsewaves by photo-electronic system, detecting the possible cardio vascular disease such as arteriosclerosis, cardiac insufficiency and overall blood vessel aging. The products are sold under the name of Lapex.
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