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US 9,872,977 B2Granted
Piston for a needleless valve system
AssigneeCareFusion 303, Inc.
InventorsTyler Devin Panian, Jonathan Yeh
Life of this patent
Estimating the term…
Abstract
A piston for a needleless valve system comprising a head portion configured to be disposed in the needleless valve system and controlling fluid flow through the needleless valve system. The head portion comprising a continuous top surface, and an opening disposed proximate the continuous top surface, wherein the continuous top surface is non-planar when the opening is in an open position.
Claims20
A piston for a needleless valve system, the piston comprising:
- a head portion having a continuous top surface and compression features;
- wherein, when the head portion is in a relaxed state, the top surface being non-planar and the compression features separated to form an opening adjacent the top surface, and when the compression features are pressed together to close the opening between the compression features, the top surface being substantially planar.
A needleless valve system comprising:
- a housing comprising a fluid port;
- and
- a piston comprising a head portion having a continuous top surface and compression features, the top surface being non-planar and the compression features separated to form an opening adjacent the top surface when the head portion is in a relaxed state, and the top surface being substantially planar when the compression features are pressed together to close the opening between the compression features;
- wherein, the piston, disposed in said housing, comprises (i) an open position, when the head portion does not extend into the fluid port, with the compression features separated to form the opening, and (ii) a closed position, when the head portion extends into the fluid port, with the compression features pressed together to close the opening.
1 more element
A needleless valve system comprising:
- a housing comprising a fluid port;
- and
- a piston having a head portion configured to extend into the fluid port and a base portion, the head portion comprising a continuous top surface and compression features, the top surface being non-planar and the compression features separated to form an opening positioned adjacent the top surface when the head portion is in a relaxed state, and the top surface being substantially planar when the compression features are pressed together to close the opening between the compression features;
- wherein, the piston comprises an open position within said housing, when the head portion does not extend into the fluid port, and the compression features are separated by the opening;
- and a closed position within said housing, when the head portion is urged by the base portion to extend into the fluid port such that the compression features are pressed together to close the opening.
2 more elements
Dependencies are inferred from the claim text.