Control of fluid flow
OwnerJoseph R. Paradisinventor
Life of this patent
Estimating the term…
Abstract
A flow control device with at least one flow channel in a housing that can contain an injection site and/or a pre-biased flow control diaphragm that is stabilized by a flexible contact member. Any flow channel, including that with an injection site, may include a plug acted upon by an external actuator, which can be self-sealing. The injection site with a flexible plug can be used for needleless infusion of fluids, or the flexible plug may be used with a needle for the conventional injection of fluid.
Claims18
A flow control device for the infusion of fluids comprising
- an inlet for the flow of fluid;
- an outlet for said inlet and disposed with respect thereto to serve as a conduit for flow from said inlet;
- and
- movable flow controlling means sealing said inlet and having a pierceable central portion for controlling flow by the extent to which the central portion of said movable means is moved away from said inlet;
- wherein
- a first channel for the flow of fluid extends between said inlet and said outlet;
- a branch channel is connected to said first channel beyond said moveable means to serve as a conduit for at least a portion of the flow into said first channel;
- and
- a member is positioned at the convergence of the branch and first channels for controlling the flow from said branch channel.
A flow control device for the infusion of fluids comprising
- an inlet for the flow of fluid;
- an outlet for said inlet and disposed with respect there to to serve as a conduit for flow from said inlet;
- and
- movable flow controlling means sealing said inlet and having a pierceable central portion for controlling flow by the extent to which the central portion of said movable means is moved away from said inlet;
- wherein
- said movable means sealing said inlet comprises a bell-shaped member having a dome and side walls, with said dome extending out of said inlet and said walls straddling said outlet.
A flow control device for the infusion of fluids comprising
- an inlet for the flow of fluid;
- an outlet for said inlet and disposed with respect thereto to serve as a conduit for flow from said inlet;
- and
- movable flow controlling means sealing said inlet and having a pierceable central portion for controlling flow by the extent to which the central portion of said movable means is moved away from said inlet;
- wherein said inlet includes opposed fittings, further including a mount with a side wall containing opposed grooves engaging said fittings, each groove commencing at an opening in the base of the mount and terminating in another opening in the side wall of said mount.
A flow control device for the infusion of fluids comprising
- an inlet for the flow of fluid;
- an outlet for said inlet and disposed with respect thereto to serve as a conduit for flow from said inlet;
- and
- movable flow controlling means sealing said inlet and having a pierceable central portion for controlling flow by the extent to which the central portion of said movable means is moved away from said inlet;
- wherein
- an infusion site activator containing a plug and engaging said inlet is adapted for preventing flow from the activator when disengaged from said infusion site, comprising a sealing ring having a recessed surface and in engagement with said device;
- whereby after sealing is effectuated, said plug is depressed to create a passageway for the flow of fluid through the activator and further engagement between the fitting and the device brings said recessed surface into contact with said moveable means depressing it and opening a channel into said device so that fluid can flow into surface recesses exposed by the movement of said moveable means, so that when the fitting is uncoupled from the device, the said moveable means and said plug are reseated, preventing any further flow of fluid.
Dependencies are inferred from the claim text.