Disposable components for fluid line autoconnect systems and methods

摘要

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 lines, spikes or 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 recess, groove or other feature to engage with a spike cap and enable removal of the spike cap.

主权项

1. A fluid handling cassette for use in a peritoneal dialysis system, the cassette comprising:
a body removably mountable in a peritoneal dialysis base unit and having two pump chambers, each formed as a depression in a first side of the body, and also having a plurality of flowpaths for one or more fluids; a patient line port located at a first end of the body arranged for connection to a patient line, the patient line port being in valved fluid communication with each pump chamber via a first flowpath; a plurality of solution line ports located at a second end of the body opposite the first end, each of the solution line ports being in valved fluid communication with each pump chamber via the first flowpath; a drain line port located at the first end of the body and arranged for connection to a drain line, the drain line port being in valved fluid communication with each pump chamber via a second flowpath; a fluid heating port located at the first end of the body and arranged for connection to a fluid heating line, the fluid heating port being in valved fluid communication with each pump chamber via the second flowpath; a plurality of valves associated with the first and second flowpaths, wherein a number of valves associated with the first flowpath is equal to a number of ports plus a number of pump chambers associated with the first flowpath, and a number of valves associated with the second flowpath is equal to a number of ports plus a number of pump chambers associated with the second flowpath; and a flexible membrane attached to the first side of the body over the pump chambers, a portion of the membrane over each pump chamber being arranged to be movable for movement of the one or more fluids in each pump chamber.