Abstract: A rhomboid piece of paper and plastic laminate has a central rhomboid region scored with parallel lines of weakening. Border regions are provided with appropriate layers of adhesive such that when the blank is wrapped around a needle cap, the border region nearest the open end of the cap bonds to the cap and provides a first circumferentially continuous end band, while the border region nearest the closed end of the cap provides a second end band which is axially moveable relative to the cap. The two end bands are joined by a plurality of longitudinally extending circumferentailly contiguous regions which separate into strips which project radially to form an umbrella-like structure when the second end band is urged toward the first end band. The strips extend along a slight helix angle before formation of the umbrella-like structure.

Abstract: A sleeve with a plurality of contiguous longitudinally oriented strips between end bands is secured at one end to a cap for a hypodermic needle. The sleeve is constructed to bulge radially outwardly when its ends are slid longitudinally toward each other thereby forming a finger guard to protect against needle sticks.