US 12,070,568 B2
Fluid mixing device and fluid delivery tube set including same
Kevin Cowan, Allison Park, PA (US); James Dedig, Pittsburgh, PA (US); Michael Spohn, Fenelton, PA (US); and John Haury, Sewickley, PA (US)
Assigned to BAYER HEALTHCARE LLC, Whippany, NJ (US)
Filed by BAYER HEALTHCARE LLC, Whippany, NJ (US)
Filed on May 26, 2023, as Appl. No. 18/324,674.
Application 18/324,674 is a continuation of application No. 17/904,399, granted, now 11,712,552, previously published as PCT/US2021/019507, filed on Feb. 25, 2021.
Claims priority of provisional application 62/982,995, filed on Feb. 28, 2020.
Prior Publication US 2023/0293874 A1, Sep. 21, 2023
Int. Cl. A61M 39/10 (2006.01); A61M 39/24 (2006.01); A61M 39/00 (2006.01)
CPC A61M 39/105 (2013.01) [A61M 39/24 (2013.01); A61M 2039/0027 (2013.01); A61M 2039/242 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A fluid delivery tube set for delivering fluid from a fluid injector to a patient, the fluid delivery tube set comprising:
a first inlet tube configured to deliver a first injection fluid;
a second inlet tube configured to deliver a second injection fluid;
an outlet tube configured to deliver a mixture of the first injection fluid and the second injection fluid to the patient; and
a fluid mixing device comprising:
a first fluid inlet coupled to the first inlet tube and configured to conduct the first injection fluid in a first direction, the first fluid inlet having a first redirecting surface;
a second fluid inlet coupled to the second inlet tube and configured to conduct the second injection fluid in a second direction, the second fluid inlet having a second redirecting surface;
a mixing chamber in fluid communication with the first fluid inlet and the second fluid inlet and having a third redirecting surface, the mixing chamber configured to mix the first injection fluid and the second injection fluid, wherein the mixing chamber comprises a first inlet distal to the third redirecting surface and a second inlet distal to the third redirecting surface, wherein the first redirecting surface is positioned distal to the first fluid inlet and at least partially faces the first inlet to the mixing chamber, and wherein the second redirecting surface is positioned distal to the second fluid inlet and at least partially faces the second inlet to the mixing chamber; and
an outlet port coupled to the outlet tube and in fluid communication with the mixing chamber,
wherein the first redirecting surface is configured to redirect the first injection fluid in a first different direction from the first direction to enter the mixing chamber along the first different direction, and wherein the second redirecting surface is configured to redirect the second injection fluid in a second different direction from the second direction to enter the mixing chamber along the second different direction, wherein the first different direction and the second different direction are selected so that the first injection fluid and the second injection fluid contact the third redirecting surface of the mixing chamber to turbulently mix the first injection fluid and the second injection fluid together in the mixing chamber, and
wherein the mixture of the first injection fluid and the second injection fluid exits the fluid mixing device via the outlet port.