Needleless connector with a tortuous fluid flow path
AssigneeCareFusion 303, Inc.
InventorsJonathan Yeh, Christopher J. Zollinger, Tyler Devin Panian
Life of this patent
Estimating the term…
Abstract
A needleless connector has a housing with an internal cavity having an interior surface, a port, an output flow channel, and a fluid flow path through the cavity between the port and the output flow channel. A collapsible valve is disposed within the cavity. The valve has one or more rings each having a surface that is in sealing contact with the interior surface of the housing. There are one or more notches formed in each of the one or more rings, and the flow path passes through one of the notches in each of the one or more rings.
Claims17
A needleless connector comprising:
- a housing having an internal cavity with an interior surface, a port, an output flow channel, and a fluid flow path through the cavity between the port and the output flow channel;
- and
- a collapsible valve disposed within the cavity, the valve comprising:
- at least two rings each having a respective surface in sealing contact with the interior surface of the housing;
- and
- one or more notches formed in each of the at least two rings, wherein the one or more notches in a first ring of the at least two rings are circumferentially offset from the one or more notches in a second ring of the at least two rings that is adjacent to the first ring, the one or more notches in at least one of the at least two rings comprise two notches circumferentially disposed 180° from each other,
- wherein the fluid flow path passes through one of the one or more notches in each of the at least two rings.
A needleless connector comprising:
- a housing having an internal cavity with an interior surface, a port, an output flow channel, and a fluid flow path through the cavity between the port and the output flow channel;
- a collapsible valve disposed within the cavity, the valve comprising:
- at least two rings each having a respective surface in sealing contact with the interior surface of the housing;
- and
- one or more notches formed in each of the at least two rings, wherein the one or more notches in a first ring of the at least two rings are circumferentially offset from the one or more notches in a second ring of the at least two rings that is adjacent to the first ring;
- and
- one or more toroidal flow channels formed between adjacent rings of the at least two rings and the interior surface of the housing, wherein the flow path passes through one of the one or more notches in a first ring of the at least two rings, along a portion of a toroidal flow channel that is formed between the first ring, a second ring of the at least two rings that is adjacent to the first ring, and the interior surface of the housing, and then through one of the one or more notches in the second ring,
- wherein the fluid flow path passes through one of the one or more notches in each of the at least two rings.
Dependencies are inferred from the claim text.