Abstract: This invention relates to a foaming enzyme composition and delivery method useful for the cleaning and maintenance of moist conditions of the surfaces of soiled instruments, utensils and other devices prior to final cleaning and/or sterilization. The aqueous composition preferably consists of a combination of: (1) an enzyme cleaning solution, (2) foam-building ingredients; (3) a corrosion inhibitor; and (4) an antimicrobial agent. The composition may be dispensed from a pump spray as a stable foam which covers the surfaces of the instrument to be cleaned, and remains on the surface of the instrument for at least 30 minutes, and preferably until the instruments are finally cleaned and sterilized. The composition and delivery method of the present invention is particularly useful for the pre-cleaning of complex medical instruments such as endoscopes.

Abstract: This invention relates to a foaming enzyme composition and delivery method useful for the cleaning and maintenance of moist conditions of the surfaces of soiled instruments, utensils and other devices prior to final cleaning and/or sterilization. The aqueous composition preferably consists of a combination of: (1) an enzyme cleaning solution, (2) foam-building ingredients; (3) a corrosion inhibitor; and (4) an antimicrobial agent. The composition may be dispensed from a pump spray as a stable foam which covers the surfaces of the instrument to be cleaned, and remains on the surface of the instrument for at least 30 minutes, and preferably until the instruments are finally cleaned and sterilized. The composition and delivery method of the present invention is particularly useful for the pre-cleaning of complex medical instruments such as endoscopes.