Prefilled telescoping multiple chamber ampoule device

A prefilled telescoping multiple chamber ampoule device separately storing at least two different flowable components, comprising:

• a container having at least two axially extending chambers arranged in parallel to one another, each chamber having a closed rearward end and an open forward end and an integrally formed circumferential sealing means projecting inwardly from an inner wall of the chamber,
• a piston unit having at least two pistons and a transversely extending mount integrally adjoining forward ends of the pistons, each piston having a passage axially extending within the interior of the piston, said passage having an outlet opening at a forward end of the piston and a transverse inlet opening near a rearward end of the piston, and each piston being in alignment with one of said chambers and being inserted, with the rearward end ahead, into the open forward end of one of said chambers and being matingly arranged therein for coaxial telescoping movement of the container and the piston unit towards one another from a closed storage position into an open release position,
• wherein, in the closed storage position, the rearward end of each piston is spaced a distance from the rearward end of one of said chambers so as to define therein a reservoir containing one of said components and the circumferential sealing means is sealingly pressed into circumferential contact with an outer wall of the piston at a location preventing fluid communication between the reservoir and the transverse inlet opening of the passage of the piston so as to prevent release of the component from the reservoir into the transverse inlet opening of the passage of the piston during transportation and storage,
• wherein, after initial and during telescoping movement into the open release position, the rearward ends of the pistons are moved towards the rearward ends of the chambers whereby the sealing means expose the transverse inlet openings of the passages of the pistons to the reservoirs so as to release the components through the outlet openings of the passages of the pistons as the volumes of the reservoirs are reduced, and
• wherein the container has a peripheral wall having a forward end which extends in the forward direction beyond the forward end of the piston unit so that a forward portion of the peripheral wall of the container forms a collection and mixing compartment being in fluid communication with each one of the outlet openings of the passages of the pistons for simultaneously receiving each one of the released components.

A prefilled telescoping multiple chamber ampoule device separately storing at least two different flowable components, comprising:

• a container having at least two axially extending chambers arranged in parallel to one another, each chamber having a closed rearward end and an open forward end and a circumferential sealing lip forming an integral part of the container and projecting inwardly from an inner wall of the chamber,
• a piston unit having at least two axially extending pistons arranged in parallel to one another, each piston having a passage axially extending within the interior of the piston, said passage having an outlet opening at a forward end of the piston and a transverse inlet opening near a rearward end of the piston, the forward ends of the pistons being adjoined by a transversely extending mount forming an integral part of the piston unit, and each piston being in alignment with one of said chambers and being inserted, with the rearward end of the piston ahead, into the open forward end of one of said chambers and being matingly arranged therein for coaxial telescoping movement of the container and the piston unit towards one another from a closed storage position into an open release position,
• wherein, in the closed storage position, the rearward end of each piston is spaced a distance from the rearward end of one of said chambers so as to define therein a reservoir containing one of said components and the circumferential sealing lip is sealingly pressed into circumferential contact with an outer wall of the piston at a location between the rearward end of the piston and the transverse inlet opening of the passage of the piston so as to prevent fluid communication between the reservoir and the transverse inlet opening of the passage of the piston and prevent release of the component from the reservoir into the transverse inlet opening of the passage of the piston during transportation and storage,
• wherein, after initial and during telescoping movement into the open release position, the rearward ends of the pistons are moved towards the rearward ends of the chambers whereby the sealing lips expose the transverse inlet openings of the passages of the pistons to the reservoirs so as to release the components through the outlet openings of the passages of the pistons as the volumes of the reservoirs are reduced,
• wherein, in both the closed storage position and the open release position, the transverse inlet opening of the passage of the piston is facing an inner wall section of the chamber that has essentially a same transverse cross-sectional area, and
• wherein said piston unit further has a collection and mixing compartment forming an integral part of the piston unit and having a peripheral wall axially extending from a plane front face formed by the forward ends of the pistons connected by said mount in forward direction to an open forward end of the compartment in a manner that each one of the outlet openings of the passages of the pistons is in fluid communication with the compartment for simultaneously receiving each one of the released components during telescoping movement.

A prefilled telescoping multiple chamber ampoule device separately storing at least two different flowable components, comprising:

• a container having at least two axially extending chambers arranged in parallel to one another, each chamber having a closed rearward end and an open forward end and a circumferential sealing lip forming an integral part of the container and projecting inwardly from an inner wall of the chamber,
• a piston unit having at least two axially extending pistons arranged in parallel to one another, each piston having a passage axially extending within the interior of the piston, said passage having an outlet opening at a forward end of the piston and a transverse inlet opening near a rearward end of the piston, the forward ends of the pistons being adjoined by a transversely extending mount forming an integral part of the piston unit, and each piston being in alignment with one of said chambers and being inserted, with the rearward end of the piston ahead, into the open forward end of one of said chambers and being matingly arranged therein for coaxial telescoping movement of the container and the piston unit towards one another from a closed storage position into an open release position,
• wherein, in the closed storage position, the rearward end of each piston is spaced a distance from the rearward end of one of said chambers so as to define therein a reservoir containing one of said components and the circumferential sealing lip is sealingly pressed into circumferential contact with an outer wall of the piston at a location between the rearward end of the piston and the transverse inlet opening of the passage of the piston so as to prevent fluid communication between the reservoir and the transverse inlet opening of the passage of the piston and prevent release of the component from the reservoir into the transverse inlet opening of the passage of the piston during transportation and storage,
• wherein, after initial and during telescoping movement into the open release position, the rearward ends of the pistons are moved towards the rearward ends of the chambers whereby the sealing lips expose the transverse inlet openings of the passages of the pistons to the reservoirs so as to release the components through the outlet openings of the passages of the pistons as the volumes of the reservoirs are reduced,
• wherein, in both the closed storage position and the open release position, the transverse inlet opening of the passage of the piston is facing an inner wall section of the chamber that has essentially a same transverse cross-sectional area, and
• wherein said piston unit has at least two separate compartments which form integral parts of the piston unit, each compartment has a peripheral wall axially extending from a plane front face formed by the forward ends of said pistons connected by said mount in forward direction to an open forward end of the compartment in a manner that at least one of the outlet openings of the passages of the pistons is in fluid communication with the compartment for receiving at least one of the components during telescoping movement.

A prefilled telescoping multiple chamber ampoule device separately storing at least two different flowable components, comprising:

• a container having at least two axially extending chambers arranged in parallel to one another, each chamber having a closed rearward end and an open forward end and a circumferential sealing lip forming an integral part of the container and projecting inwardly from an inner wall of the chamber,
• a piston unit having at least two axially extending pistons arranged in parallel to one another, each piston having a passage axially extending within the interior of the piston, said passage having an outlet opening at a forward end of the piston and a transverse inlet opening near a rearward end of the piston, the forward ends of the pistons being adjoined by a transversely extending mount forming an integral part of the piston unit, and each piston being in alignment with one of said chambers and being inserted, with the rearward end of the piston ahead, into the open forward end of one of said chambers and being matingly arranged therein for coaxial telescoping movement of the container and the piston unit towards one another from a closed storage position into an open release position,
• wherein, in the closed storage position, the rearward end of each piston is spaced a distance from the rearward end of one of said chambers so as to define therein a reservoir containing one of said components and the circumferential sealing lip is sealingly pressed into circumferential contact with an outer wall of the piston at a location between the rearward end of the piston and the transverse inlet opening of the passage of the piston so as to prevent fluid communication between the reservoir and the transverse inlet opening of the passage of the piston and prevent release of the component from the reservoir into the transverse inlet opening of the passage of the piston during transportation and storage,
• wherein, after initial and during telescoping movement into the open release position, the rearward ends of the pistons are moved towards the rearward ends of the chambers whereby the sealing lips expose the transverse inlet openings of the passages of the pistons to the reservoirs so as to release the components through the outlet openings of the passages of the pistons as the volumes of the reservoirs are reduced,
• wherein, in both the closed storage position and the open release position, the transverse inlet opening of the passage of the piston is facing an inner wall section of the chamber that has essentially a same transverse cross-sectional area, and
• wherein the container has a peripheral wall having a forward end which extends in the forward direction beyond the forward end of the piston unit so that a forward portion of the peripheral wall of the container forms a collection and mixing compartment being in fluid communication with each one of the outlet openings of the passages of the pistons for simultaneously receiving each one of the released components.

A prefilled telescoping multiple chamber ampoule device separately storing at least two different flowable components, comprising:

• a container having at least two axially extending chambers arranged in parallel to one another, each chamber having a closed rearward end and an open forward end and a circumferential sealing lip forming an integral part of the container and projecting inwardly from an inner wall of the chamber,
• a piston unit having at least two axially extending pistons arranged in parallel to one another, each piston having a passage axially extending within the interior of the piston, said passage having an outlet opening at a forward end of the piston and a transverse inlet opening near a rearward end of the piston, the forward ends of the pistons being adjoined by a transversely extending mount forming an integral part of the piston unit, and each piston being in alignment with one of said chambers and being inserted, with the rearward end of the piston ahead, into the open forward end of one of said chambers and being matingly arranged therein for coaxial telescoping movement of the container and the piston unit towards one another from a closed storage position into an open release position,
• an applicator means having an axially extending rearward portion with an open rearward end, said open-ended rearward portion of said applicator means having a peripheral inside wall surrounding an open space for receiving an axially extending forward end portion of said piston unit, said forward end portion having a peripheral outside wall and a front face formed by the forward ends of the pistons and comprising the outlet openings of the passages of the pistons, said peripheral inside wail and said peripheral outside wall having matching cross-sectional dimensions so as to fluid-tightly attach the peripheral outside wall of the rearward end of the applicator means on the peripheral inside wall of the forward end portion of the piston unit within said space,
• wherein, in the closed storage position, the rearward end of each piston is spaced a distance from the rearward end of one of said chambers so as to define therein a reservoir containing one of said components and the circumferential sealing lip is sealingly pressed into circumferential contact with an outer wall of the piston at a location between the rearward end of the piston and the transverse inlet opening of the passage of the piston so as to prevent fluid communication between the reservoir and the transverse inlet opening of the passage of the piston and prevent release of the component from the reservoir into the transverse inlet opening of the passage of the piston during transportation and storage,
• wherein, after initial and during telescoping movement into the open release position, the rearward ends of the pistons are moved towards the rearward ends of the chambers whereby the sealing lips expose the transverse inlet openings of the passages of the pistons to the reservoirs so as to release the components through the outlet openings of the passages of the pistons as the volumes of the reservoirs are reduced, and
• wherein, in both the closed storage position and the open release position, the transverse inlet opening of the passage of the piston is facing an inner wall section of the chamber that has essentially a same transverse cross-sectional area.