Hemostasis valve
A hemostasis valve for use with catheters in intravascular procedures. The hemostasis valve comprising a sealable fluid channel that bifurcates from a single distal lumen to two proximal lumens. An upper proximal lumen may include a funnel shaped opening to improve aspiration potential. Rotating locking mechanisms are attachable at the ends of the hemostasis valve to interlock coaxial devices or to form seals around coaxial devices. Injection molding may be used to manufacture a hemostasis valve and its components. A mold and core pins may impart external and internal shapes to a molten polymer. Once the polymer has cooled, the molded component is separated from any pins or molds and attached to other molded components to form an assembled hemostasis valve.
1. A hemostasis valve, comprising:
a sealable fluid channel that bifurcates from a single distal channel into two proximal channels; and
a bifurcation surface,
wherein the bifurcation surface defines an interior space formed between the two proximal channels,
wherein the bifurcation surface is set back proximally a distance from an intersection of the two proximal channels, and
wherein the sealable fluid channel is configured to accommodate the insertion of catheters and guidewires.
2. The hemostasis valve of claim 1 , wherein the bifurcation surface between the two proximal channels has a smooth and rounded edge.
3. The hemostasis valve of claim 2 , wherein the bifurcation surface has a hyperbolic paraboloid shape.
4. The hemostasis valve of claim 1 , wherein at least one of the proximal channels includes a first portion of a funnel section, and the single distal channel includes a second portion of the funnel section.
5. The hemostasis valve of claim 4 , wherein the funnel section is formed at a location where the single distal channel bifurcates into the two proximal channels.
6. The hemostasis valve of claim 5 , wherein the second portion of the funnel section has a smaller effective cross-sectional area than the first portion of the funnel section.