Patent ID: 11904130
Assignee: UNIVERSITY OF WASHINGTON
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A fluid access device configurable between a connected state and a disconnected state, comprising:
a first housing enclosing a machine-side hydraulic circuit, the first housing including a distal end and a proximal end;
the machine-side hydraulic circuit includes a machine-side input lumen which extends within the first housing from the proximal end to the distal end of the first housing and a machine-side output lumen which extends within the first housing from the proximal end to the distal end of the first housing, and a machine-side recirculation lumen enclosed within the first housing and connects the machine-side input lumen to the machine-side output lumen;
a second housing enclosing a patient-side hydraulic circuit, the second housing including a distal end and a proximal end;
the patient-side hydraulic circuit includes a patient-side input lumen which extends within the second housing from the proximal end to the distal end of the second housing and a patient-side output lumen which extends within the second housing from the proximal end to the distal end of the second housing, and a patient-side recirculation lumen enclosed within the second housing and connects the patient-side input lumen to the patient-side output lumen; and
one or more locks or one or more retention mechanisms secure the first housing to the second housing to create a fluidic interface between the distal end of the first housing to the distal end of the second housing, wherein the one or more locks or the one or more retention mechanisms can be disengaged to separate the first housing from the second housing;
wherein in the connected state of the fluid access device, the machine-side input and output lumens abut the patient-side output and input lumens at the fluidic interface, and the machine-side input lumen fluidically couples to the patient-side output lumen, and the machine-side output lumen fluidically couples to the patient-side input lumen,
wherein in the disconnected state of the fluid access device, the machine-side input lumen is not fluidically coupled to the patient-side output lumen, and the machine-side output lumen is not fluidically coupled to the patient-side input lumen.