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36results about How to "Preserve sterility" patented technology

Resealable vial with connector assembly having a membrane and pusher

InactiveUS6168037B1Prevent inadvertent withdrawalPreserve sterilityCapsClosure using stoppersElastomerBottle
A resealable vial featuring a connector assembly having a membrane and a pusher for selectively opening or sealing the fluid passageway between the bottle and the connector end of a luer hub. The connector assembly includes a body disposed on said bottle, and means for communicating fluid such as a luer connector hub which may be separately provided with the body or formed integrally therewith. The luer connector hub features a connector end open for access by medical delivery instrument, and an opposed end which is disposed for fluid communication with a recess defined by the body. The body defines a recess having a fluid path with the open top of the bottle. A membrane, preferably formed from an elastomeric material, is secured across both the recess and the open top of the bottle, and may be retained between the top surface of the bottle and the body. The membrane preferably includes a central area sealing the recess from the open top of the bottle, with one or more fluid openings defined on a portion of the membrane outside of the central area. A pusher is located in the recess. A force exerted on the pusher deflects the membrane towards the interior of the vial, urging the membrane and fluid openings away from the body to open the fluid path between the bottle and the recess. The pusher may be structured to include one or more fluid pathways so as to facilitate fluid flow through the recess. A sealing rib may be provided around the portion of the periphery of the recess to enhance sealing contact between the central area of the membrane and the recess.
Owner:BECTON DICKINSON FRANCE

Syringe and method of using

Syringes and methods of using are described which protect the syringe barrel cavity from contaminants. A first syringe is formed with a corrugated sheath which encloses the plunger and space between the rearward end face surface of the syringe barrel handle member and the forward face of the plunger handle member. A second syringe is formed with a syringe barrel having a straight segment and a corrugated segment having the forward face of the plunger handle member molded to the rearward terminus of the corrugated segment of the syringe barrel. A third syringe is formed from mating syringe barrel and plunger member walls. The walls of the mating syringe barrel and plunger member are concentric and slide relative to each other while maintaining an enclosure around the plunger shaft. A fourth syringe is formed from inner and outer concentric syringe barrel walls mating with the walls of a plunger member. The mating walls are concentric and slide relative to each other while maintaining an enclosure around the plunger shaft. A fifth syringe is formed with an end cap contaminant shield having an extension wall that is mated with the rearward end opening of the syringe barrel cavity. Alternatively, the end cap contaminant shield can be provided with a flat design without the extending wall and is bonded or molded to the rearward end terminus of the syringe barrel. The end cap contaminant shield designs are provided with an opening defining the shape of the cross-section of the plunger shaft.
Owner:GRAY ROBIN SCOTT
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