In 1991 Norma McCulloch invented, developed and patented a new type of Linear Displacement Manual Resuscitator and in 1993 established McCulloch Medical™. The unit was manufactured to the International Standard for Human Resuscitators. The product line was acquired by Genesis Industries, Inc. in 2007.
Initially in response to the need for a unit to resuscitate calves, an easy-to-use Calf Resuscitator was developed using the same technology as the human unit. This proved so successful that a range of units were developed for Foals, Lambs, Piglets, Llama and Alpaca Crias, Dogs, Cats, Birds and Zoo animals. Demand has led to sales in 32 countries world-wide.