Tamperproof port cover
AssigneeAbbott Laboratories
InventorsKenneth H. Knox, Mark E. Larkin, James R. Duffield
Life of this patent
Estimating the term…
Abstract
A tamper resistant cover for the port of a container for medical liquids which when applied to the port indicates that an additive material has been introduced into the container. The port cover is easily molded from a resinous plastic material and includes latch portions which fit into a latch bar with the latch bar serving as a means to prevent access with the latch portions so as to result in a tamper-resistant structure. Preferably, the latch portions are in the form of barbed sections and are guided by means of an inclined ramp into latch openings in such a manner that a compression fit is provided so that after the barbed sections are forced through the latch openings the barbed sections will expand to engage latch surfaces in the latching bar.
Claims13
A protective cover for the port of a container for medicinal liquids, said port defining flexible side and end walls comprising:
- first and second body members defining side and opposing end walls adapted to partially surround said port side and end wall;
- hinging means extending between adjacent wall portions of said first and second members to interconnect said members;
- said first and second body members defining oppposing end walls presenting port-engaging surfaces at one end of each said member and a closed wall at the other end;
- tamperproof frictional engagement means operatively associated with adjacent wall portions of said first and second body members opposite said hinging means providing a snapfit arrangement;
- said port engaging surfaces and said frictional engagement means of said first and second body members constructed and arranged so that when said first and second members are placed over said side and end walls of said port and said frictional engagement means are activated, said resilient side wall of said port will exert a biasing force on said port engaging surface to maintain said frictional engagement means under tension.
A unitary two component protective cover for a tubular port of a container for medicinal liquids, said port defining a flexible side wall comprising:
- two substantially hemicylindrical members defining side walls, opposing pairs of end walls one said pair of end walls presenting a substantially closed surface when overlapped and opposing tubular engaging portions in the other pair of said end walls;
- a web-like hinging portion extending between adjacent wall portions of said two hemicylindrical members;
- frictional engagement means positioned adjacent the edges of said side walls opposite said hinging portion;
- tamperproof means operatively associated with said frictional engagement means to prevent access to said frictional engagement means after engagement;
- said opposing tubular engaging portions and said frictional engagement means of said two hemicylindrical members constructed and arranged so that when said members are placed over said side and end walls of said port and said port and said frictional engagement means are activated, said flexible side wall of said port will exert a biasing force on said tubular engaging portions to maintain said frictional engagement means under tension.
Dependencies are inferred from the claim text.