Cap assembly for use with a prefilled lock solution syringe
First Claim
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1. A cap assembly comprising:
- a housing defining a receptacle and including an inlet opening and an outlet opening;
a plunger movably positioned within the receptacle from a first position to a second position and to a third position, the plunger defining a fluid flow path between the inlet opening and the outlet opening when the plunger is in the first position and obstructing fluid flow between the inlet opening and the outlet opening when the plunger is in the third position, the plunger being positioned and configured to engage a syringe through the inlet opening; and
a biasing member positioned to urge the plunger towards the third position;
wherein the plunger is configured to force fluid from the receptacle through the fluid outlet when the plunger moves from the second position to the third position.
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Abstract
A cap assembly is disclosed for use with a lock solution delivery device. The cap assembly includes a housing defining a receptacle and having an inlet end and an outlet end. A plunger is movable axially within the receptacle from a retracted position to an advanced position and is rotatably supported within the receptacle from a first position to a second position. The plunger includes an axial extension configured to non-rotatably engage a syringe connected to the inlet end of the housing. The plunger is positioned to move from the first position to the second position in response to rotatable detachment of a syringe from the inlet end of the housing.
59 Citations
16 Claims
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1. A cap assembly comprising:
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a housing defining a receptacle and including an inlet opening and an outlet opening; a plunger movably positioned within the receptacle from a first position to a second position and to a third position, the plunger defining a fluid flow path between the inlet opening and the outlet opening when the plunger is in the first position and obstructing fluid flow between the inlet opening and the outlet opening when the plunger is in the third position, the plunger being positioned and configured to engage a syringe through the inlet opening; and a biasing member positioned to urge the plunger towards the third position; wherein the plunger is configured to force fluid from the receptacle through the fluid outlet when the plunger moves from the second position to the third position. - View Dependent Claims (2, 3, 11, 12, 13, 14, 15, 16)
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4. A cap assembly comprising:
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a housing defining a receptacle and including an inlet opening and an outlet opening; a plunger movably positioned within the receptacle from a first position to a second position and to a third position, the plunger defining a fluid flow path between the inlet opening and the outlet opening when the plunger is in the first position and obstructing fluid flow between the inlet opening and the outlet opening when the plunger is in the third position, the plunger being positioned and configured to engage a syringe through the inlet opening; and a biasing member positioned to urge the plunger towards the third position; wherein the plunger is configured to force fluid from the receptacle through the fluid outlet when the plunger moves from the second position to the third position, the housing and the plunger including engaging structure to prevent movement of the plunger towards the third position when the plunger is in the first position, the engaging structure including at least one protrusion formed on the plunger and an annular shoulder formed on the housing; wherein the annular shoulder defines at least one slot which is dimensioned to receive the at least one protrusion to facilitate movement of the plunger towards the third position, the at least one protrusion and the at least one slot being misaligned when the plunger is in the first position and aligned when the plunger is in the second position. - View Dependent Claims (5, 6, 7, 8, 9, 10)
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Specification