Patent ID: 11918722
Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 12:
13. A blood tubing set or an extracorporeal blood circuit comprising:
at least one insert piece comprising:
a first connection site for connecting a first tubing portion of the blood tubing set or the extracorporeal blood circuit to the insert piece;
a second connection site for connecting a second tubing portion of the blood tubing set to the insert piece;
a third connection site for connecting a third tubing portion of the blood tubing set to the insert piece;
a main conduit for conducting a first fluid through the insert piece, wherein the main conduit extends between the first connection site and the second connection site; and
a secondary conduit for conducting a second fluid into the main conduit, wherein the secondary conduit extends between the third connection site and the main conduit and is arranged between the first connection site and the second connection site,

wherein the first connection site comprises a perfusable lumen having a first cross section area, wherein the second connection site comprises a perfusable lumen having a second cross section area, wherein the main conduit comprises a perfusable lumen having a third cross section area,
wherein the secondary conduit extends into the perfusable lumen of the main conduit without crossing a center line of the main conduit and which comprises at least an outlet for the second fluid,
wherein the secondary conduit is the only flow obstruction in the main conduit, and
wherein the first connection site, the second connection site, the third connection site, the secondary conduit, and the main conduit are each portions of a single unitarily constructed part.