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US 6,206,954 B1Granted
Blood set and chamber
AssigneeDSU Medical Corporation
InventorsWilliam J. Schnell, David S. Utterberg
Life of this patent
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AssigneeDSU Medical Corporation
InventorsWilliam J. Schnell, David S. Utterberg
Estimating the term…
A combined arterial-venous blood flow set comprises connected lengths of flexible tubing for receiving blood from a patient, for conveying the blood to a blood processing device such as a dialyzer or an LDL filter, and for returning the blood to the patient. An optional first bubble trap chamber is connected in series flow between two of the lengths of tubing at a flow position downstream from the patient and upstream from the blood processing device. A second bubble trap chamber is connected in series flow between two of the lengths of tubing at a flow position downstream from the blood processing device and upstream from the patient. A first portion of the tubing which is in a flow position upstream from the blood processing device extends by the second bubble trap chamber, and is physically, laterally connected to it without direct flow connection. This helps to stabilize the positioning of components of the flow set and to reduce confusion in set-up and priming.
A bubble trap chamber which comprises a chamber-defining housing, a flow inlet tube extending into said chamber adjacent one side of said chamber and having an aperture that directs substantially the entire flow through said inlet tube horizontally into said chamber, said housing having an outlet port adjacent to the chamber bottom and positioned adjacent a side of said chamber opposed to said one side;
Dependencies are inferred from the claim text.