Complex sentence: Eneslow, originally known as N.S. Low, was founded by Edward and Nellie Stone Low in 1909, selling medical devices on Avenue A: trusses, and surgical products.
Split into simpler sentences: Eneslow, originally known as N.S. Low, was founded by Edward and Nellie Stone Low in 1909. The company initially sold medical devices on Avenue A: trusses, and then segued into surgical products.