Abstract: A method for making a device for cleaning the cannula of a medical instrument and for cleaning a cannula with the device in which the distal end of an elongated support and guiding member, having proximal and distal ends, is secured in a cleaning element formed of a substantially reticulated hydrophobic polyurethane foam having a plurality of pores within its structure which define surfaces in the foam. The surfaces of the polyurethane foam are coated with a hydrophilic polyurethane coating and a liquid enzymatic cleaning solution is absorbed in the coating and then dried. When used to clean a cannula the cleaning element is immersed in water to wet the enzymatic cleaner inserted into the cannula and manipulated from the proximal end of the elongated support.

Abstract: A device for cleaning the cannula of a medical instrument includes an elongated support and guiding member which has proximal and distal ends. A cleaning element secured to the distal end is formed of a substantially reticulated hydrophobic polyurethane foam having a plurality of pores within its structure which define surfaces in the foam. The surfaces of the polyurethane foam are coated with a hydrophilic polyurethane coating and an enzymatic cleaning solution is absorbed in the coating.

Abstract: A device for cleaning the cannula of a medical instrument includes an elongated support and guiding member which has proximal and distal ends. A cleaning element secured to the distal end is formed of a substantially reticulated hydrophobic polyurethane foam having a plurality of pores within its structure which define surfaces in the foam. The surfaces of the polyurethane foam are coated with a hydrophilic polyurethane coating and an enzymatic cleaning solution is absorbed in the coating.

Abstract: A method of visualizing biological material on medical instruments is disclosed which consists of the steps of selecting a dye material capable of creating fluorescence or phosphorescence when applied to biological material and subjected to ultraviolet light; applying the dye to a medical instrument; mounting the medical instrument in a viewing box; exposing the medical instrument in the viewing box to ultraviolet light and observing the instrument through an opening in the view box to determine if the dye has caused fluorescence or phosphorescence of material on the instrument indicative of the presence of biological material thereon.