US 12,433,984 B2
Multi-lumen indwelling catheter
Palak Doshi, Evanston, IL (US); Shayna Massi, Palatine, IL (US); and John A. Krueger, Muskego, WI (US)
Assigned to C.R. Bard, Inc.
Filed by CareFusion 2200, Inc., San Diego, CA (US)
Filed on Jan. 4, 2021, as Appl. No. 17/140,535.
Application 17/140,535 is a continuation of application No. 15/335,133, filed on Oct. 26, 2016, granted, now 10,905,815.
Prior Publication US 2021/0187180 A1, Jun. 24, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 25/00 (2006.01); A61M 1/28 (2006.01); A61M 25/02 (2006.01)
CPC A61M 1/285 (2013.01) [A61M 25/0017 (2013.01); A61M 25/003 (2013.01); A61M 2025/0031 (2013.01); A61M 2025/0073 (2013.01); A61M 2025/0293 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A catheter comprising:
a distal portion comprising:
a first lumen extending longitudinally through a lengthwise portion of the distal portion, the first lumen at least partially defined by a first inner diameter surface of the distal portion;
a second lumen extending longitudinally through the lengthwise portion of the distal portion, the second lumen at least partially defined by a second inner diameter surface of the distal portion;
a proximal portion comprising the first lumen and the second lumen; and
a binal portion formed as a single, monolithic piece located between the distal portion and the proximal portion, the binal portion having a single outer wall, where the binal portion comprising the first lumen and the second lumen that are both enclosed by a same outer perimeter of the single outer wall;
wherein the binal portion has a non-circular cross sectional shape with a relatively narrow portion comprising the first lumen and a relatively wide portion comprising the second lumen;
wherein the proximal portion includes a bifurcated length including a first tube portion and a second tube portion, the first tube portion comprising an injection port at a proximal end thereof that is configured to indwell beneath skin of a patient and configured to interface with a needle to inject a fluid into the injection port while located beneath the skin.