Device and method for manual aspiration and removal of an undesirable material

A device to remove an undesirable material from a vessel, the device comprising:

• a handle body, a trigger assembly, a plunger assembly, a plunger rod, a barrel, and a connection assembly;
• the trigger assembly is connected to a distal end of the plunger rod;
• a distal end of the handle body is connected to a proximal end of the barrel;
• the connection assembly comprising a barrel inlet channel, a waste port channel, an inlet valve, outlet valve, an inlet connector to be operatively coupled to a suction cannula, and an outlet connector to be operatively coupled to a waste assembly;
• the connection assembly is connected to a distal end of the barrel;
• and
• wherein at least a section of the plunger rod and the plunger assembly are co-axially positioned within the barrel.

A system for aspiration of an undesirable material from a patient, the system comprising:

• an aspiration device comprising:
• a handle body, a trigger assembly, a pump assembly, and a connection assembly;
• the trigger assembly and the handle body are both connected to a distal end of the pump assembly, the connection assembly is connected to a proximal end of the pump assembly;
• the connection assembly comprises a barrel inlet channel, a waste port channel, an inlet valve, an outlet valve, an inlet connector to be operatively coupled to a suction cannula, and an outlet connector to be operatively coupled to a waste assembly;
• the suction cannula comprising an expandable funnel at a suction cannula distal end;
• the waste assembly comprising a waste tube and a waste bag;
• and
• wherein the expandable funnel, the inlet valve, and the outlet valve are configured such that the undesirable material flows through the expandable funnel, the inlet valve, and the outlet valve substantially en bloc.

A method for removing an undesirable material from a patient, the method comprising:

• placing a suction cannula within a vessel of the patient, the suction cannula comprising a suction cannula lumen, a suction cannula distal end, and a suction cannula proximal end;
• connecting the suction cannula proximal end to a suction cannula port of an aspiration device, the aspiration device comprising a handle, a trigger, a pump assembly, the suction cannula port, and a waste assembly port;
• wherein the pump assembly is configured to generate both a vacuum force and a drive force;
• connecting a waste assembly to the waste assembly port;
• navigating the suction cannula to a treatment site within the vessel;
• activating the trigger such that the pump assembly generates the vacuum force through the suction cannula lumen and the suction cannula distal end, thereby aspirating the undesirable material from the vessel substantially en block;
• and
• releasing the trigger such that the pump assembly generates the drive force through the waste assembly port and removes the aspirated undesirable material from the pump assembly and into the waste assembly.