Boule´s history goes back to the 1950′s when the founder of Swelab Instrument AB, Erik Ohlin, developed Europe’s first automatic blood cell counter. This is an early predecessor of today’s instruments from Boule. The founders of Boule’s American subsidiary, Clinical Diagnostic Solutions Inc., (CDS) have a similar history from Coulter Corporation which developed the world’s first blood cell counter. The journey to bring hematology testing to the point of care.