초록 ▼

A stop member for a device such as a syringe is inaccessibly disposed in a sleeve member. The ring member is also disposed about a portion of the stop member and in the sleeve member. The ring member is connected to the inside of the sleeve member by means of a frangible connection. When the sleeve

A stop member for a device such as a syringe is inaccessibly disposed in a sleeve member. The ring member is also disposed about a portion of the stop member and in the sleeve member. The ring member is connected to the inside of the sleeve member by means of a frangible connection. When the sleeve member is twisted. the sleeve member and its connected ring member freely rotate about a portion of the stop member at the end of the syringe. When the sleeve member is axially pulled off the end of the syringe, the frangible connection breaks, and the sleeve member is removed, leaving the ring member and stop member disposed on the end of the syringe thereby indicating that the prefilled syringe has been tampered with.

대표청구항 ▼

A tamper proof cap for a device including a liquid reservoir and an exit port comprising: a sleeve member; a ring member disposed in said sleeve member; a stop member inaccessibly disposed in said sleeve member for providing a removable friction fit, liquid-impervious connection with the exit port o

A tamper proof cap for a device including a liquid reservoir and an exit port comprising: a sleeve member; a ring member disposed in said sleeve member; a stop member inaccessibly disposed in said sleeve member for providing a removable friction fit, liquid-impervious connection with the exit port of the liquid reservoir; and a frangible means connecting said ring member to said sleeve member, said frangible means providing a mechanical coupling with said sleeve member when said sleeve member is twisted, and said frangible means not providing a mechanical coupling with said sleeve member when said sleeve member is pulled, in an axial direction, off the device, with a force less than the frictional force connecting said stop member with the exit port of the liquid reservoir.