Devices, systems, and methods for auto-retroperfusion of the cerebral venous system

A flow unit for regulating the flow and pressure of a fluid, the flow unit comprising:

• an elongated body having an open proximal end, an open distal end, an interior extending between the open proximal end and the open distal end, and a chamber surrounding at least a portion of the elongated body, the chamber adapted to expand and deflate and comprising an interior and at least one port in fluid communication with the interior of the chamber and adapted to couple with a fluid source;
• and
• at least one sensor disposed at or near the distal end of the elongated body, each of the at least one sensors adapted to gather data relating to a fluid flowing through the interior of the elongated body;
• wherein the flow unit is configured to be coupled to a catheter for controlling blood perfusion pressure.

A system for providing a retroperfusion therapy to a venous vessel, the system comprising:

• a catheter for controlling blood perfusion pressure, the catheter comprising:
• a body having a proximal open end, a distal end, a lumen extending between the proximal open end and the distal end, and a plurality of orifices disposed thereon, each of the orifices in fluid communication with the lumen, and
• at least one expandable balloon, each of the at least one expandable balloons coupled with the body, having an interior that is in fluid communication with the lumen, and adapted to move between an expanded configuration and a deflated configuration;
• and
• a flow unit for regulating the flow and pressure of a fluid;
• and
• a connection assembly for providing a sterile environment.