Patent ID: 11931180
Assignee: SUNNYBROOK RESEARCH INSTITUTE
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. An intravascular imaging catheter comprising:
a first proximal elongate sheath segment comprising a first lumen;
a second proximal elongate sheath segment comprising a second lumen;
said first proximal elongate sheath segment and said second proximal elongate sheath segment joining to form a bifurcation region, such that the first lumen and the second lumen merge within said bifurcation region to form a third lumen; and
a distal elongate microcatheter sheath segment extending from said bifurcation region, wherein the third lumen extends within said distal elongate microcatheter sheath segment and is in fluid communication with a distal opening formed at a distal end of said distal elongate microcatheter sheath segment, wherein said distal elongate microcatheter sheath segment is positionable within a vasculature of a subject upon the extension a guidewire through the second lumen and the third lumen, such that the guidewire extends beyond said distal end of said distal elongate microcatheter sheath segment;
an imaging conduit retractable within the first lumen; and
an imaging assembly connected to said imaging conduit at a location that is remote from a proximal end thereof;
wherein said imaging conduit is extendable within the third lumen when the third lumen is absent of the guidewire, such that said imaging assembly is extendable within the third lumen to a distal region of said distal elongate microcatheter sheath segment; and
wherein said distal region of said distal elongate microcatheter sheath segment comprises a partial internal stop configured to prevent passage of said imaging assembly beyond said distal end of said distal elongate microcatheter sheath segment.