Rigid closure lid to a disposable container for holding and disposing of used medical sharps and other medical-surgical materials

A closure lid which attaches to a rigid container for holding an disposing of used surgical sharps and other disposable medical-surgical waste materials, comprising:

• a molded plastic top cover for rigidly enclosing a space within said container to contain said disposed medical-surgical waste materials therethrough into said space, said top cover having a least one aperture to permit the insertion of said medical-surgical waste materials therethrough into said space, a first recess, a second recess having a centrally located locking flange, a central surface and a plurality of steam vents positioned on the central surface of said top cover;
• and
• a molded plastic slide closure movably attached to said top cover for varying the size of said at least one aperture from a fully open to a closed position and for sealing said container, said slide closure having a rear end interlocking means for engaging said locking flange to form a rigid seal with said top cover upon manipulation of said slide closure to the fully closed position, said steam vents being fully exposed upon manipulation of said slide closure to the fully closed position.