Clot aspiration and blood reinfusion systems, and associated devices and methods

A system for treating clot material in a vasculature of a patient, comprising:

• an aspiration catheter defining an aspiration lumen and having a distal end portion, wherein the aspiration catheter is configured to be positioned within the vasculature of the patient such that the distal end portion is positioned proximate to the clot material;
• a reinfusion catheter defining a reinfusion lumen, wherein the reinfusion catheter is configured to be positioned within the vasculature of the patient;
• a collection chamber defining a chamber;
• a filter positioned within the chamber;
• a pump assembly including a pump having an inlet and an outlet, wherein the pump is configured to draw air through the inlet and drive the air out of the outlet;
• a vacuum valve between the pump assembly and the collection chamber, wherein the vacuum valve is movable between an open position in which the inlet of the pump is fluidly connected to the chamber such that the pump generates negative pressure within the chamber and a closed position in which the inlet of the pump is fluidly disconnected from the chamber;
• a positive pressure valve between the pump assembly and the collection chamber, wherein the positive pressure valve is movable between an open position in which the outlet of the pump is fluidly connected to the chamber such that the pump generates positive pressure within the chamber and a closed position in which the outlet of the pump is fluidly disconnected from the chamber;
• an aspiration valve between the aspiration catheter and the collection chamber, wherein the aspiration valve is movable between an open position in which the aspiration lumen is fluidly connected to the chamber and a closed position in which the aspiration lumen is fluidly disconnected from the chamber;
• and
• a reinfusion valve between the reinfusion catheter and the collection chamber, wherein the reinfusion valve is movable between an open position in which the reinfusion lumen is fluidly connected to the chamber and a closed position in which the reinfusion lumen is fluidly disconnected from the chamber.