Cressey & Co. has acquired a majority ownership position in StatLab Medical Products from Prairie Capital, according to a news release.

StatLab, based in McKinney, Texas, is a developer and manufacturer of diagnostic supplies for the anatomic pathology laboratory industry.

Cressey & Co., with offices in Chicago and Nashville, seeks control and minority equity investments exclusively in healthcare. The firm considers a wide range of investments in middle-market companies.

Prairie Capital, based in Chicago, is a PE firm focusing on the lower end of the middle market. It seeks to make control and select minority investments, typically in support of companies undergoing an ownership change.

No financial terms were disclosed.