Abstract: A needleless injection site comprising a housing defining proximal and distal ends and including a reseal member disposed therein. The reseal member has an elastically openable and closable aperture formed therein, and normally resides within the housing in a closed position wherein the aperture is in a closed configuration. The reseal member is deformable such that the application of distally directed pressure thereto will cause the reseal member to distally advance within the housing to an open position wherein the aperture assumes an open configuration. The removal of the distally directed pressure from the reseal member will cause it to resiliently return to the closed position wherein the aperture assumes the closed configuration.

Abstract: A needleless injection site comprising a housing defining proximal and distal ends and including a reseal member disposed therein. The reseal member has an elastically openable and closable aperture formed therein, and normally resides within the housing in a closed position wherein the aperture is in a closed configuration. The reseal member is deformable such that the application of distally directed pressure thereto will cause the reseal member to distally advance within the housing to an open position wherein the aperture assumes an open configuration. The removal of the distally directed pressure from the reseal member will cause it to resiliently return to the closed position wherein the aperture assumes the closed configuration.

Abstract: A needleless injection site comprising a housing defining proximal and distal ends and including a reseal member disposed therein. The reseal member has an elastically openable and closable aperture formed therein, and normally resides within the housing in a closed position wherein the aperture is in a closed configuration. The reseal member is deformable such that the application of distally directed pressure thereto will cause the reseal member to distally advance within the housing to an open position wherein the aperture assumes an open configuration. The removal of the distally directed pressure from the reseal member will cause it to resiliently return to the closed position wherein the aperture assumes the closed configuration.

Abstract: A needleless injection site comprising a housing defining proximal and distal ends and including a reseal member disposed therein. The reseal member has an elastically openable and closable aperture formed therein, and normally resides within the housing in a closed position wherein the aperture is in a closed configuration. The reseal member is deformable such that the application of distally directed pressure thereto will cause the reseal member to distally advance within the housing to an open position wherein the aperture assumes an open configuration. The removal of the distally directed pressure from the reseal member will cause it to resiliently return to the closed position wherein the aperture assumes the closed configuration.

Abstract: A needleless injection site comprising a housing defining proximal and distal ends and including a reseal member disposed therein. The reseal member has an elastically openable and closable aperture formed therein, and normally resides within the housing in a closed position wherein the aperture is in a closed configuration. The reseal member is deformable such that the application of distally directed pressure thereto will cause the reseal member to distally advance within the housing to an open position wherein the aperture assumes an open configuration. The removal of the distally directed pressure from the reseal member will cause it to resiliently return to the closed position wherein the aperture assumes the closed configuration.

Abstract: A needleless injection site comprising a housing defining proximal and distal ends and including a reseal member disposed therein. The reseal member has an elastically openable and closable aperture formed therein, and normally resides within the housing in a closed position wherein the aperture is in a closed configuration. The reseal member is deformable such that the application of distally directed pressure thereto will cause the reseal member to distally advance within the housing to an open position wherein the aperture assumes an open configuration. The removal of the distally directed pressure from the reseal member will cause it to resiliently return to the closed position wherein the aperture assumes the closed configuration.

Abstract: A method of forming a reseal element through the use of a mold assembly including first and second mold plates, a shell core, a center pin, a center core, and a mold cavity having a shape corresponding to that of the reseal element and collectively defined by the first and second mold plates, the shell and center cores, and the center pin. The method comprises the initial step of injecting a quantity of a moldable material into the mold cavity to form the reseal element. Air is then infused between the shell core and the center pin into the mold cavity to dislodge the reseal element from the shell core and the center pin. Thereafter, the center core is retracted from the reseal element to define a gap therebetween, with the second plate then being retracted from over the reseal element to expose the same. The first plate is then advanced toward the second plate to remove the reseal element from upon the shell core and the center pin.

Abstract: A needleless injection site comprising a housing which defines a fluid passage. Disposed within the housing is a reseal member which includes an openable and closable aperture, and an expandable and collapsible reservoir. The reseal member normally resides in a first position within the housing wherein the aperture is closed and the reservoir is collapsed. The reseal member is deformable such that the application of compressive pressure thereto will facilitate the movement thereof within the housing to a second position wherein the reservoir is expanded and the aperture is opened and placed into communication with the fluid passage and the reservoir. The removal of the compressive pressure from the reseal member will facilitate the resilient return thereof to the first position wherein the aperture is closed and the reservoir is collapsed. The collapse of the reservoir is adapted to prevent the creation of a vacuum within the fluid passage when the reseal member resiliently returns to the first position.

Abstract: A needleless injection site comprising a housing which defines a fluid passage. Disposed within the housing is a reseal member which includes an openable and closable aperture, and an expandable and collapsible reservoir. The reseal member normally resides in a first position within the housing wherein the aperture is closed and the reservoir is collapsed. The reseal member is deformable such that the application of compressive pressure thereto will facilitate the movement thereof within the housing to a second position wherein the reservoir is expanded and the aperture is opened and placed into communication with the fluid passage and the reservoir. The removal of the compressive pressure from the reseal member will facilitate the resilient return thereof to the first position wherein the aperture is closed and the reservoir is collapsed. The collapse of the reservoir is adapted to prevent the creation of a vacuum within the fluid passage when the reseal member resiliently returns to the first position.

Abstract: A method of forming a slit in a reseal element having an outer surface defined by a proximal end thereof, a semi-spherical inner surface portion defined by a dome region of the proximal end, and an annular inner surface portion which circumvents the semi-spherical inner surface portion. The method is accomplished through the use of a cutting assembly which includes a locator plate having a locator cavity disposed therein, a cutting core, a support fixture, and a blade member. The method comprises the initial step of inserting the reseal element into the locator cavity of the locator plate. Thereafter, the dome region of the reseal element is pre-stressed by the contact of the support fixture thereagainst, with the blade member then being advanced upwardly through the proximal end of the reseal element to form the slit therein.

Abstract: A needleless injection site comprising a housing which defines an interior chamber and a central opening which communicates with the interior chamber. The housing further comprises an elongate, proximally extending dilator projection portion which defines a fluid passage. Disposed within the central opening and the interior chamber is a reseal member which has an elastically openable and closable aperture disposed therein and defines an expandable and collapsible internal reservoir. The reseal member normally resides in a first position within the housing wherein the aperture is in a closed configuration and the reservoir is collapsed. The reseal member is deformable such that the application of distally directed pressure thereto will cause the reseal member to distally advance within the housing to a second position wherein the aperture assumes an open configuration and communicates with the fluid passage and the reservoir.

Abstract: A needleless injection site comprising a housing which defines an interior chamber and a central opening which communicates with the interior chamber. The housing further comprises an elongate, proximally extending dilator projection portion which defines a fluid passage. Disposed within the central opening and the interior chamber is a reseal member which has an elastically openable and closable aperture disposed therein and defines an expandable and collapsible internal reservoir. The reseal member normally resides in a first position within the housing wherein the aperture is in a closed configuration and the reservoir is collapsed. The reseal member is deformable such that the application of distally directed pressure thereto will cause the reseal member to distally advance within the housing to a second position wherein the aperture assumes an open configuration and communicates with the fluid passage and the reservoir.

Abstract: A needleless injection site comprising a housing defining proximal and distal ends and including a reseal member disposed therein. The reseal member has an elastically openable and closable aperture formed therein, and normally resides within the housing in a closed position wherein the aperture is in a closed configuration. The reseal member is deformable such that the application of distally directed pressure thereto will cause the reseal member to distally advance within the housing to an open position wherein the aperture assumes an open configuration. The removal of the distally directed pressure from the reseal member will cause it to resiliently return to the closed position wherein the aperture assumes the closed configuration.

Abstract: An infusion device comprising a housing having a base plate disposed therein which is slidably moveable between first and second positions. Attached to the base plate and the housing is a biasing mechanism for biasing the base plate to the second position. Also disposed within the housing is an actuator plate which is slidably moveable between inner and outer positions. The actuator plate is cooperatively engaged to the base plate in a manner wherein the movement of the base plate toward the second position facilitates the movement of the actuator plate toward the outer position, with the movement of the base plate toward the first position facilitating the movement of the actuator plate toward the inner position. Slidably attached to the housing in spaced relation to the actuator plate is a lid member. The lid member, the actuator plate and the housing define a medicament chamber when the lid member is in a closed position.

Abstract: A fixed flow rate needleless injection site comprising a housing which defines an interior chamber and a central opening which communicates with the interior chamber. The housing further comprises an elongate, proximally extending dilator projection portion which defines a fluid passage. Disposed within the central opening and the interior chamber is a reseal member which has an elastically openable and closable aperture disposed therein. The reseal member normally resides in a first position within the housing wherein the aperture is in a closed configuration. Disposed within the fluid passage of the dilator projection portion is a metering member defining a flow orifice for regulating the flow rate of a fluid through the fluid passage. The reseal member is deformable such that the application of distally directed pressure thereto will cause the reseal member to distally advance within the housing to a second position wherein the aperture assumes an open configuration and communicates with the fluid passage.

Abstract: A needleless injection site comprising a housing which defines an interior chamber and a central opening which communicates with the interior chamber. The housing further comprises an elongate, proximally extending dilator projection portion which defines a fluid passage. Disposed within the central opening and the interior chamber is a reseal member which has an elastically openable and closable aperture disposed therein and defines an expandable and collapsible internal reservoir. The reseal member normally resides in a first position within the housing wherein the aperture is in a closed configuration and the reservoir is collapsed. The reseal member is deformable such that the application of distally directed pressure thereto will cause the reseal member to distally advance within the housing to a second position wherein the aperture assumes an open configuration and communicates with the fluid passage and the reservoir.

Abstract: A needleless injection site comprising a housing defining proximal and distal ends and including a reseal member disposed therein. The reseal member has an elastically openable and closable aperture formed therein, and normally resides within the housing in a closed position wherein the aperture is in a closed configuration. The reseal member is deformable such that the application of distally directed pressure thereto will cause the reseal member to distally advance within the housing to an open position wherein the aperture assumes an open configuration. The removal of the distally directed pressure from the reseal member will cause it to resiliently return to the closed position wherein the aperture assumes the closed configuration.

Abstract: A needleless injection site comprising a housing which defines an interior chamber and a central opening which communicates with the interior chamber. The housing further defines a proximally extending dilating projection portion which is coaxially aligned with the central opening and distally extending adapter portion. The dilator projection and adapter portions define a continuous fluid passage. Disposed within the central opening and the interior chamber is a reseal member which has an elastically openable and closable aperture formed therein. The reseal member normally resides in the first position within the housing wherein the aperture is in a closed configuration. The reseal member is deformable such that the application of distally directed pressure thereto will cause the reseal member to distally advance within the housing to a second position wherein the aperture assumes an open configuration and communicates with the fluid passage.

Abstract: A needleless injection site comprising a housing which defines an interior chamber and a central opening which communicates with the interior chamber. The housing further defines a proximally extending dilator projection portion which is co-axially aligned with the central opening and a distally extending adapter portion. The dilator projection and adapter portions define a continuous fluid passage. Disposed within the central opening and the interior chamber is a reseal member which has an elastically openable and closable aperture formed therein. The reseal member normally resides in a first position within the housing wherein the aperture is in a closed configuration. The reseal member is deformable such that the application of distally directed pressure thereto will cause the reseal member to distally advance within the housing to a second position wherein the aperture assumes an open configuration and communicates with the fluid passage.

Abstract: A needleless port system for depositing a sample of biological material into a vacuum container. The system comprises a generally dome-shaped or bell-shaped housing having an upper end and a bottom end, the latter being designed and configured to axially engage a vacuum container receivable therethrough. The system further includes at least one passageway, preferably disposed along a top portion thereof, for establishing fluid communication with a source of biological material. The system further preferably includes a hollow, generally spike-shaped member for depositing the biological sample into the vacuum container. Axially disposed within the housing and axially received about the generally spike-shaped member is a seal member designed and configured to penetrably and sealingly receive the distal tip of the spike member. The seal member is preferably designed and configured to selectively control the amount of biological material drawn into the vacuum container.