Patent ID: 6447476
Filing Date: 2002-09-10
Classification: A61C,A61J,A61M

Abstract:
Prefilled telescoping ampoule device comprising:a receptacle made of elastomeric material including a hollow cylindrical body having a closed lower end, an open upper end, and a peripheral sealing lip projecting radially inwardly from an inner wall of the cylindrical body between the closed lower end and the open upper end thereof; an insertion member including a cylindrical portion having a closed lower end, an open upper end, a transverse opening radially extending from an outer wall into an interior of the cylindrical portion, and a longitudinal passage axially extending within the interior of the cylindrical portion from the transverse opening to the open upper end of the cylindrical portion; the cylindrical portion of the insertion member with its closed lower end ahead being inserted into the open upper end of the hollow cylindrical body and being arranged therein for coaxially telescoping movement of the receptacle and the insertion member towards one another from a closed storage position to an open release position; wherein, in the closed storage position, the closed lower end of the cylindrical portion of the insertion member is spaced a distance from the lower end of the hollow cylindrical body so as to define therein a cylindrical chamber containing a substance, and the peripheral sealing lip of the cylindrical body is sealingly pressed into circumferential contact with the outer wall of the cylindrical portion of the insertion member at a location above the closed lower end of the cylindrical body and below the transverse opening so as to prevent release of substance from the chamber into the transverse opening and to frictionally hold the insertion member in place within the receptacle during transportation and storage, and wherein in the open release position, after telescoping movement the lower end of the cylindrical portion of the insertion member is positioned at or close to the lower end of the cylindrical body of the receptacle and the transverse opening of the cylindrical portion of the insertion member is located below the sealing lip of the cylindrical body resulting in a reduced volume of the chamber and a release of substance from the chamber into the transverse opening and the longitudinal passage of the cylindrical portion of the insertion member.