Disposable components for fluid line autoconnect systems and methods
First Claim
1. A disposable component system for use with a fluid line connection system of a medical infusion system, the disposable component system comprising:
- a fluid handling cassette comprising;
a generally planar body with at least one pump chamber formed as a depression in a first side of the body and a plurality of flowpaths for a fluid;
a solution line spike located at a first end of the body, the solution line spike being in fluid communication with the at least one pump chamber via at least one flowpath of the plurality of flowpaths; and
a spike cap having an inner surface configured to removably cover the solution line spike, wherein an outer surface of the spike cap includes a first raised feature that extends outwardly away from a longitudinal axis of the spike cap to aid in removal of the spike cap for connection of the solution line spike to a solution line, a second raised feature that extends outwardly away from the longitudinal axis of the spike cap to directly engage a groove in an inner surface of a solution line cap covering the solution line to engage the spike cap and the solution line cap directly with each other, and a third raised feature between the first and second raised features that extends outwardly away from the longitudinal axis of the spike cap and is configured as a stop for the solution line cap when the spike cap engages the solution line cap.
1 Assignment
0 Petitions
Accused Products
Abstract
Components for a medical infusion fluid handling system, such as an APD system, in which one or more lines (such as solution lines), spikes or other connection ports may be automatically capped and/or de-capped. This feature may provide advantages, such as a reduced likelihood of contamination since no human interaction is required to de-cap and connect the one or more lines, the spikes or the other connection ports. For example, a fluid handling cassette may include one or more caps that cover a corresponding spike and include a raised and/or recessed feature to assist in removal of the one or more caps from the cassette. A solution line cap may include a hole and a recess, a groove or other feature to engage with a spike cap and enable removal of the spike cap.
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Citations
25 Claims
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1. A disposable component system for use with a fluid line connection system of a medical infusion system, the disposable component system comprising:
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a fluid handling cassette comprising; a generally planar body with at least one pump chamber formed as a depression in a first side of the body and a plurality of flowpaths for a fluid; a solution line spike located at a first end of the body, the solution line spike being in fluid communication with the at least one pump chamber via at least one flowpath of the plurality of flowpaths; and a spike cap having an inner surface configured to removably cover the solution line spike, wherein an outer surface of the spike cap includes a first raised feature that extends outwardly away from a longitudinal axis of the spike cap to aid in removal of the spike cap for connection of the solution line spike to a solution line, a second raised feature that extends outwardly away from the longitudinal axis of the spike cap to directly engage a groove in an inner surface of a solution line cap covering the solution line to engage the spike cap and the solution line cap directly with each other, and a third raised feature between the first and second raised features that extends outwardly away from the longitudinal axis of the spike cap and is configured as a stop for the solution line cap when the spike cap engages the solution line cap. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A disposable component system for use with a fluid line connection system of a peritoneal dialysis system, the disposable component system comprising:
a spike cap having an inner surface configured to removably cover a spike of a fluid handling cassette, wherein an outer surface of the spike cap includes a first raised feature that extends outwardly away from a longitudinal axis of the spike cap to aid in removal of the spike cap from the spike for connection of the spike to a solution line prior to commencement of a peritoneal dialysis therapy, a second raised feature that extends outwardly away from the longitudinal axis of the spike cap and is configured for direct engagement with an inner recess of a solution line cap to engage the spike cap and the solution line cap directly with each other, and a third raised feature between the first and second raised features that extends outwardly away from the longitudinal axis of the spike cap and is configured as a stop for the solution line cap when the spike cap engages the solution line cap.
Specification