摘要:
A patient controlled liquid drug administration device is provided that enables either or both of a continuous flow of a liquid drug, as well as successive, large-volume boluses thereof, to be self-administered to and by a patient while avoiding bolus refill during bolus delivery or after bolus delivery but before an intake stroke of the pump occurs. The device includes an elongated housing having an axial cavity extending through it with a reciprocating pump mounted at a bottom end thereof. The pump defines a closed internal reservoir and includes a first wall, or seat, that is fixed in the cavity, and a second, flexible wall that is axially movable in the cavity in relation to the fixed wall between reservoir-full and reservoir-empty positions. The pump includes an inlet port that is connectable to a source of a pressurized liquid drug by an inlet conduit, and an outlet port subcutaneously connectable to the patient by an outlet conduit, both conduits extending out the bottom end of the housing. An outlet clamp is mounted in the cavity to move between a closed position constricting the outlet conduit of the pump, thereby preventing the flow of the liquid drug through the outlet conduit, and an open position. An inlet clamp is mounted in the cavity to move between a closed position constricting the inlet conduit and thereby preventing the flow of liquid through it, and an open position disengaged from the inlet conduit, thereby allowing the flow of liquid through it.
摘要:
A patient controlled liquid drug administration device is provided that enables either or both of a continuous flow of a liquid drug, as well as successive, large-volume boluses thereof, to be self-administered to and by a patient while avoiding bolus refill during bolus delivery or after bolus delivery but before an intake stroke of the pump occurs. The device includes an elongated housing having an axial cavity extending through it with a reciprocating pump mounted at a bottom end thereof. The pump defines a closed internal reservoir and includes a first wall, or seat, that is fixed in the cavity, and a second, flexible wall that is axially movable in the cavity in relation to the fixed wall between reservoir-full and reservoir-empty positions. The pump includes an inlet port that is connectable to a source of a pressurized liquid drug by an inlet conduit, and an outlet port subcutaneously connectable to the patient by an outlet conduit, both conduits extending out the bottom end of the housing. An outlet clamp is mounted in the cavity to move between a closed position constricting the outlet conduit of the pump, thereby preventing the flow of the liquid drug through the outlet conduit, and an open position. An inlet clamp is mounted in the cavity to move between a closed position constricting the inlet conduit and thereby preventing the flow of liquid through it, and an open position disengaged from the inlet conduit, thereby allowing the flow of liquid through it.
摘要:
A flexible container is provided for the storage and administration of medical solutions. The container incorporates a transparent front sheet made from a planar layer of a polymer and an opposing rear sheet. The rear sheet is made from a planar laminate layer. The front and rear sheets are sealed together along a common peripheral edge to form a volume enclosure. The volume enclosure is constructed of materials having high oxygen and moisture barrier properties which allows the container thermoplastic to be stored for extended periods of time without degrading the contents. The volume enclosure is then inflated with a pressurized gas to permanently stretch the front and rear sheets outwardly and to thereby increase the volume capacity of the container. An alternative embodiment of the container incorporates multiple compartments, separated by peelable seals, for containing a diluent and a medicament. The seals are ruptured by manipulation of the container to thereby mix the contents together for delivery through standard IV arrangement to a patient.
摘要:
A flexible container is provided for the storage and mixing together of diluents and medicaments. The container incorporates multiple compartments, separated by peelable seals, in which the diluents and medicaments are stored. The container is constructed of thermoplastic materials having high oxygen and moisture barrier properties which allows the container to be stored for extended periods of time without degrading the contents. The seals are ruptured by manipulation of the container to thereby mix the contents together for delivery through standard IV arrangement to a patient. The seals are constructed to provide a non-linear resistance characteristic to hydraulic pressure, which causes the seal to peel open completely along its length. The container is folded-over along the line of one of the seals and also includes a locking tab and retaining slot to secure the bag in a folded-over condition.
摘要:
The system includes an enclosure for providing a closed volume for bactericide vapor. The enclosure has a container access opening formed therein for providing vapor communication between a container and the closed volume. A container interface assembly at the container access opening positions, locks and seals the container to the enclosure. A container door removal system is partially contained within the enclosure and is operably engaged with the enclosure and attachable to a container door of the container for separating the container door from the container. The container door removal system includes an actuator element located external to the enclosure. A vapor injection system is included having an inlet and an outlet for the bactericide vapor. During operation, a container is attached to the container interface assembly and the container door is separated from the container by operating the actuator element of the container door removal system providing vapor communication between the closed volume and the volume within the container. The bactericide vapor may be introduced into the enclosure and the container via the vapor injection system.
摘要:
A flexible container is provided for the storage and administration of medical solutions. The container incorporates a transparent front sheet made from a planar layer of a polymer and an opposing rear sheet. The rear sheet is made from a planar laminate layer. The front and rear sheets are sealed together along a common peripheral edge to form a volume enclosure. The volume enclosure is constructed of materials having high oxygen and moisture barrier properties which allows the container thermoplastic to be stored for extended periods of time without degrading the contents. The volume enclosure is then inflated with a pressurized gas to permanently stretch the front and rear sheets outwardly and to thereby increase the volume capacity of the container. An alternative embodiment of the container incorporates multiple compartments, separated by peelable seals, for containing a diluent and a medicament. The seals are ruptured by manipulation of the container to thereby mix the contents together for delivery through standard IV arrangement to a patient.
摘要:
A flexible container is provided for the storage and mixing together of diluents and medicaments. The container incorporates multiple compartments, separated by peelable seals, in which the diluents and medicaments are stored. The container is constructed of thermoplastic materials having high oxygen and moisture barrier properties which allows the container to be stored for extended periods of time without degrading the contents. The seals are ruptured by manipulation of the container to thereby mix the contents together for delivery through standard IV arrangement to a patient. The seals are constructed to provide a non-linear resistance characteristic to hydraulic pressure, which causes the seal to peel open completely along its length. The container is folded-over along the line of one of the seals and also includes a locking tab and retaining slot to secure the bag in a folded-over condition.
摘要:
A binary connector intercouples a plugged drug vial and a plugged, flexible-walled diluent container so that the diluent can pass to the vial from the container only after the latter has been pressurized by squeezing. Sharp-tipped, hollow spikes with intercommunicating axial bores extend in diametrically opposite directions from a disk-shaped base, with jaws having circularly arrayed flexible arms extending in diametrically opposite directions from the base, coaxially around respective ones of the spikes. A compressible rubber plug is wedged in one of the bores. A vial is engaged to a container for liquid communication by snapping the connectors' jaws around their respective inlets, causing the connectors' hollow spikes to pierce their respective plugs. However, not until the container is squeezed is the plug expelled from the blocked bore and communication established between vial and container.
摘要:
A leak testing control assembly for a leak testing system of a type that cooperates with a test part interface that is coupled with a test part. In a broad aspect the leak testing control assembly includes a working fluid generator for applying a working fluid having a fluidic pressure to a test part. A flow controller assembly is coupled to the working fluid generator. The flow controller assembly includes a flow controller element for controlling the flow rate of the working fluid. A pressure level measuring element is positioned relative to the test part for measuring the fluidic pressure. A control system is coupled to the flow controller assembly and the pressure level measuring element. A user interface is coupled to the control system for providing user interaction with the leak testing control assembly. During operation, the control system 1) facilitates application of the fluidic pressure at a selected relatively constant flow rate; and, 2) interprets the value of the fluidic pressure, after the application of the fluidic pressure at the selected relatively constant flow rate, to determine whether the test part is free of leaks.
摘要:
A leak testing control assembly for a leak testing system of a type that cooperates with a test part interface that is coupled with a test part. In a broad aspect the leak testing control assembly includes a working fluid generator for applying a working fluid having a fluidic pressure to a test part. A flow controller assembly is coupled to the working fluid generator. The flow controller assembly includes a flow controller element for controlling the flow rate of the working fluid. A pressure level measuring element is positioned relative to the test part for measuring the fluidic pressure. A control system is coupled to the flow controller assembly and the pressure level measuring element. A user interface is coupled to the control system for providing user interaction with the leak testing control assembly. During operation, the control system 1) facilitates application of the fluidic pressure at a selected relatively constant flow rate; and, 2) interprets the value of the fluidic pressure, after the application of the fluidic pressure at the selected relatively constant flow rate, to determine whether the test part is free of leaks.