System for treating embolism and associated devices and methods

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

• an aspiration catheter assembly including an aspiration catheter configured to be intravascularly positioned in the vasculature of the patient such that a distal end portion of the aspiration catheter is positioned proximate to the clot material;
• a first container, wherein—
• in a first state of the first container, the first container is attached to the aspiration catheter assembly and fluidly coupled to the aspiration catheter to receive blood and clot material aspirated from the vasculature of the patient through the aspiration catheter, and
• in a second state of the second container, the second container is detached from the aspiration catheter assembly and fluidly decoupled from the aspiration catheter;
• a filter device comprising:
• a housing defining a chamber;
• an inlet, wherein in a third state of the first container, the first container is attached to the inlet and fluidly coupled to the inlet to provide the blood and the clot material to the inlet;
• an outlet;
• a fluid path extending from the inlet, through the chamber, and to the outlet;
• and
• a filter positioned in the chamber along the fluid path and configured to (a) permit the blood to flow therethrough along the fluid path from the inlet to the outlet and (b) inhibit the clot material from flowing therethrough along the fluid path from the inlet to the outlet;
• a reinfusion catheter assembly including a reinfusion catheter configured to be intravascularly positioned in the vasculature of the patient;
• and
• a second container, wherein—
• in a first state of the second container, the second container is attached to the outlet and fluidly coupled to the outlet to receive filtered blood from the outlet,
• in a second state of the second container, the second container is detached from the outlet and fluidly decoupled from the outlet, and
• in a third state of the second container, the second container is attached to the reinfusion catheter assembly and fluidly coupled to the reinfusion catheter to reinfuse the filtered blood into the vasculature of the patient, and
• the second container is configured to be in only a single one of the first state, the second state, or the third state at a time.

A blood filtering system, comprising:

• a first syringe, wherein—
• in a first state of the first syringe, the first syringe is attached to an aspiration catheter assembly, fluidly coupled to an aspiration catheter of the aspiration catheter assembly, and configured to generate vacuum pressure for aspirating blood and clot material from a vasculature of a patient through the aspiration catheter and into the first syringe, and
• in a second state of the first syringe, the second syringe is detached from the aspiration catheter assembly and fluidly decoupled from the aspiration catheter;
• a filter device comprising:
• a housing defining a chamber;
• an inlet, wherein in a third state of the first syringe, the first syringe is attached to the inlet and fluidly coupled to the inlet to provide the blood and the clot material from the first syringe to the inlet;
• an outlet;
• a fluid path extending from the inlet, through the chamber, and to the outlet;
• and
• a filter positioned in the chamber along the fluid path and configured to (a) permit the blood to flow therethrough along the fluid path from the inlet to the outlet and (b) inhibit the clot material from flowing therethrough along the fluid path from the inlet to the outlet;
• and
• a second syringe, wherein—
• in a first state of the second syringe, the second syringe is attached to the outlet, fluidly coupled to the outlet, and configured to generate vacuum pressure for drawing filtered blood from the outlet into the second syringe, and
• in a second state of the second syringe, the second syringe is detached from the outlet and fluidly decoupled from the outlet.