Modular microbarrier™ cap delivery system for attachment to the neck of a container

A modular cap delivery system including a MicroBarrier™ seal for integration in the neck of a container of flowable medium for contamination-free delivery and maintenance of the integrity of the flowable medium in the container, said modular cap delivery system comprising:

• a cap comprising a first surface including an outlet, a peripheral wall having an inner surface and outer surface extending continuously from the first surface to a rim;
• sealing means provided in the inner surface of the peripheral wall for seal-tight engagement of the cap and neck of the container of flowable medium;
• a seat having a solid portion and a reversibly deformable seal having a perforation coextensive with the solid portion of the seat, said seal and seat being held in operative engagement by the peripheral wall of the cap for defining a flow path of flowable medium from the neck of the container through the cap outlet, and wherein the seal and seat are movable between a closed position and open position upon deformation of the seal by a mechanical force, electromagnetic field, thermal variation, or other action sufficient to cause said deformation;
• and wherein the seat constrains the flowable material to assume a tube of flow through the seat;
• and
• the perforation of the seal conformably engages against the solid portion of the seat in the closed position to create a sealing surface between the seal and seat;
• such that flowable material at the sealing surface is entrapped as one or more layers for bonding the seal and seat, and said entrapped material is unavailable for back flow migration of contaminating matter.

A modular cap delivery system for integration with the neck of a container of a flowable medium for providing contamination-free delivery and maintenance of the sterility and integrity of the flowable medium without back flow or entry of microorganisms, comprising:

• a cap surface having an outlet port, a peripheral wall extending continuously from the cap surface to a rim for engagement with the neck of the container;
• means provided in the peripheral wall for holding a seal and seat in operative engagement for reversibly transitioning between an open and closed state;
• the seat comprising a sealing surface including a first solid portion and a peripheral surface coterminous with the peripheral wall for producing a tube of flow of the flowable material along a flow path from the neck of the container;
• the seal defining a sealing surface and a bore coextensive with the solid portion of the seat, said bore including an outlet for conducting the tube of flow along the flow path to the outlet port of the cap when the seal and seat are in the open state;
• wherein the sealing surfaces of seat and seal are characterized by surface imperfections limited to a range of less than 5 μm and the sealing surface of the seat comprises an arcuate shape for imparting a bias to the seal when conformably engaged against the seat, thereby providing a predetermined cracking pressure or strong restorative force for transitioning between closed and open states such that the open state discharges fluid out of the cap outlet port, while preventing backflow of matter, including microorganisms, into the container;
• and,
• means for effecting a transition of the seal and seat between the closed and open state.