Multiport syringe
First Claim
1. A syringe having:
- a fluid chamber;
an inlet valve assembly in communication with the fluid chamber; and
an outlet valve assembly disposed intermediate the fluid chamber and the inlet valve assembly;
the inlet valve assembly including;
an inlet valve member operable in an open position and a closed position;
a resilient member biasing the inlet valve member to its closed position;
the outlet valve assembly including;
an outlet valve member operable between a closed position and an open position; and
a sealing member; and
an anchoring member engaging the outlet valve assembly to maintain the outlet valve member in a closed position;
wherein;
with the outlet valve member in the closed position, the inlet valve member is placed into the open position upon compression of the resilient member to allow fluid flow into the chamber;
and the outlet valve member is operable by disengaging the anchoring means and defeating the sealing means when the fluid chamber is primed, while the inlet valve member is in a closed position;
thereby to allow discharge from the chamber.
1 Assignment
0 Petitions
Accused Products
Abstract
A multi-port syringe with a fluid chamber in communication with an inlet valve assembly and an outlet valve assembly disposed intermediate the fluid chamber and the inlet valve assembly, the inlet valve assembly has an inlet valve member operable in an open position and a closed position, the inlet valve member being biased in a closed position by a resilient member. The outlet valve assembly has an outlet valve member operable between a closed position and an open position, and the outlet valve member is maintained in a closed position by a sealing member, and includes anchoring member engaging the outlet valve assembly. With the outlet valve member in the closed position, the inlet valve member is forced open by compressing the resilient member, thus allowing fluid into the chamber, and with the fluid chamber primed and the inlet valve member in a closed position, the outlet valve member is forced open by disengaging the anchoring member and defeating the sealing member to allow fluid discharge from the chamber.
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Citations
14 Claims
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1. A syringe having:
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a fluid chamber;
an inlet valve assembly in communication with the fluid chamber; and
an outlet valve assembly disposed intermediate the fluid chamber and the inlet valve assembly;
the inlet valve assembly including;
an inlet valve member operable in an open position and a closed position;
a resilient member biasing the inlet valve member to its closed position;
the outlet valve assembly including;
an outlet valve member operable between a closed position and an open position; and
a sealing member; and
an anchoring member engaging the outlet valve assembly to maintain the outlet valve member in a closed position;
wherein;
with the outlet valve member in the closed position, the inlet valve member is placed into the open position upon compression of the resilient member to allow fluid flow into the chamber;
and the outlet valve member is operable by disengaging the anchoring means and defeating the sealing means when the fluid chamber is primed, while the inlet valve member is in a closed position;
thereby to allow discharge from the chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A syringe having:
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a housing with a proximal end and a distal end;
an inlet valve assembly adjacent to the proximal end;
an outlet valve assembly adjacent to the proximal end;
the inlet valve assembly and the outlet valve assembly being angled with respect to one another;
the distal end of the housing having a chamber therein;
the inlet valve assembly having;
an inlet opening, a first tubular portion leading to which the inlet opening leads, and a second tubular portion;
an inlet valve member received by the first tubular portion and the second tubular portion, to operate the inlet opening between an open position and a closed position;
the inlet valve member being dimensioned to occupy a substantial volume of the first tubular portion and the second tubular portion while defining a first cavity between the inlet valve member and the walls of the first tubular portion and defining a second cavity between the inlet valve member and the walls of the second tubular portion; and
a resilient member for biasing the inlet valve member in a closed position;
the outlet valve assembly having;
a third tubular portion with an activation opening and an outlet opening, and disposed intermediate the second tubular portion and the chamber in a cruciform arrangement, and in communication therewith;
the third tubular portion for receiving an outlet valve member to operate the outlet opening between a closed position and an open position;
the outlet valve member being dimensioned to occupy a substantial volume of the third tubular portion while defining a third cavity between the outlet valve member and the walls of the third tubular portion;
the outlet valve member having;
a first annular ring engaging the walls of the third tubular portion to seal the third tubular portion adjacent to the activation opening; and
a second annular ring engaging the walls of the third tubular portion to seal the third tubular portion adjacent to the outlet opening;
a plurality of lugs for engaging an annular recess in the walls of the third tubular portion to anchor the outlet valve member to maintain the outlet opening in the closed position;
wherein with the outlet opening in the closed position, the inlet valve member is driven towards the second tubular portion and the resilient member is compressed to open the inlet opening to allow fluid to flow via the first cavity and the second cavity into the chamber; and
wherein with the inlet opening in a closed position, the lugs are forced out of the annular recess such that a second annular ring completely disengages the walls of the second tubular portion to unseal the outlet opening and allow discharge from the chamber via the third cavity.
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Specification