Patent ID: 11896782
Assignee: C. R. BARD, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 5:
6. A catheter assembly, comprising:
a proximal portion, including:
a bifurcated hub,
a pair of polymer-coated cannulas partially disposed in and extending from the bifurcated hub, and
a pair of extension tubes disposed in and extending from the bifurcated hub,
wherein the pair of polymer-coated cannulas and the pair of extension tubes form a proximal pair of lumens extending through the proximal portion of the catheter assembly;

a distal portion, including a catheter tube having a distal pair of lumens extending through the distal portion of the catheter assembly,
wherein the catheter tube is configured to fit over the pair of polymer-coated cannulas to extend the proximal pair of lumens and the distal pair of lumens through an entirety of the catheter assembly as an extended pair of lumens; and

a collarless connection mechanism to connect the catheter tube to the pair of polymer-coated cannulas and provide a fluid-tight connection between the catheter tube and the pair of polymer-coated cannulas, the collarless connection mechanism including a hub-based securement feature configured as a clamping-style hub for clamping the catheter tube on the pair of polymer-coated cannulas, wherein the clamping-style hub includes gripping features configured to engage an outer surface of the catheter tube, wherein:
the hub-based securement feature includes two arms configured to close around the catheter tube,
the two arms are hingedly coupled with the clamping-style hub, and
the two arms include fasteners configured to fasten the two arms together when the two arms are closed.