Disposable thrombectomy maceration and aspiration system

A disposable integrated aspiration pump and fluid collection device comprising:

• a base having a base compartment;
• a pump located in said base compartment, said pump includes an intake port and an exhaust port;
• a fluid collection compartment located above said base;
• a column extends within said fluid collection compartment in substantially a vertical direction, said column includes a lower portion and an upper portion, said column having a cavity connected to said base compartment;
• a manifold is located at said upper portion of said column, said manifold includes one or more inlets;
• a suction tube includes a first end and a second end, said first end of said suction tube is in fluid communication with said intake port of said pump, said suction tube extends through said cavity of said column, and said second end of said suction tube is in fluid communication with said one or more inlets;
• and
• a controller located in said base, a fluid level sensor and an audible alarm, said fluid level sensor is located at a designated sensor elevation within said fluid collection compartment, said fluid level sensor is coupled to said controller, said controller includes a means to activate said audible alarm for a preset amount of time when said fluid level sensor detects fluid at said designated sensor elevation, and at said end of said preset amount of time, said controller shuts off said pump,
• wherein said cavity is in fluid communication with said base compartment, said cavity is closed off at said upper portion, said fluid level sensor includes a non-contact capacitance sensor, said column includes an inner and outer surface, said fluid level sensor including a strip of copper having a first and second end, said strip of copper is located on said inner surface of said column extending around a portion of a circumference of said inner surface and forming a gap between said first and second ends of said strip of copper, a hydrophobic film is located on at least a portion of said outer surface of said column, a sensor wire couples said strip of copper to said controller, a portion of said suction tube extending within said cavity of said column is covered by a shielding material, a shielding wire has a first end and a second end, said first end of said shielding wire is coupled to ground on said controller and said second end of said shielding wire is coupled to said shielding material.

A disposable integrated aspiration pump and fluid collection device comprising:

• a base having a base compartment;
• a pump located in said base compartment, said pump includes an intake port and an exhaust port;
• a fluid collection compartment located above said base;
• a column extends within said fluid collection compartment in substantially a vertical direction, said column includes a lower portion and an upper portion, said column having a cavity connected to said base compartment;
• a manifold is located at said upper portion of said column, said manifold includes one or more inlets;
• a suction tube includes a first end and a second end, said first end of said suction tube is in fluid communication with said intake port of said pump, said suction tube extends through said cavity of said column, and said second end of said suction tube is in fluid communication with said one or more inlets;
• and
• a lid closing off an open top end of said fluid collection compartment, said lid is removable to expose an interior of said fluid collection compartment, a manually operated pressure equilibration valve is secured to said fluid collection compartment and when operated equalizes a pressure in said fluid collection compartment to ambient pressure, and a suction port is in fluid communication with said fluid collection compartment, said suction port includes a catheter fitting for coupling to a connection catheter or other tube, said connection catheter fitting extends from said lid in a horizontal direction to provide a low profile, and including a connection catheter having a first end and a second end, said first end of said connection catheter being secured to said catheter fitting and said second end of said connection catheter having an aspiration coupling.

A disposable integrated aspiration pump and fluid collection device comprising:

• a base having a base compartment;
• a pump located in said base compartment, said pump includes an intake port and an exhaust port;
• a fluid collection compartment located above said base;
• a column extends within said fluid collection compartment in substantially a vertical direction, said column includes a lower portion and an upper portion, said column having a cavity connected to said base compartment;
• a manifold is located at said upper portion of said column, said manifold includes one or more inlets;
• and
• a suction tube includes a first end and a second end, said first end of said suction tube is in fluid communication with said intake port of said pump, said suction tube extends through said cavity of said column, and said second end of said suction tube is in fluid communication with said one or more inlets,
• wherein said base includes a base sidewall, a base top wall, and a base bottom wall, said base sidewall, base top wall and base bottom wall define said base compartment, said column extends vertically from said base top wall, said base top wall includes an upper surface surrounding said column, said upper surface of said base top wall includes a first ribbed pattern which rises above said upper surface, said column is generally cylindrical and includes the lower portion and the upper portion, said lower portion of said column has a tapered profile in the vertical direction, said lower portion of said column and said upper portion of said column are separated by a stepped portion, said upper portion includes a tapered profile in the vertical direction, said manifold is secured to said upper portion of said column.

A disposable integrated aspiration pump and fluid collection device comprising:

• a base having a base compartment;
• a pump located in said base compartment, said pump includes an intake port and an exhaust port;
• a fluid collection compartment located above said base;
• a column extends within said fluid collection compartment in substantially a vertical direction, said column includes a lower portion and an upper portion, said column having a cavity connected to said base compartment;
• a manifold is located at said upper portion of said column, said manifold includes one or more inlets;
• a suction tube includes a first end and a second end, said first end of said suction tube is in fluid communication with said intake port of said pump, said suction tube extends through said cavity of said column, and said second end of said suction tube is in fluid communication with said one or more inlets;
• and
• a float shut off mechanism, said float shut off mechanism includes a float located below said one or more inlets of said manifold, whereby when a level of fluid rises and raises said float to a designated maximum fluid elevation, said float will engage said one or more inlets and close off fluid communication between said one or more inlets and said fluid collection compartment,
• wherein said manifold includes a generally disc shaped portion, said generally disc shape portion including a lower surface which includes said one or more inlets, whereby said one or more inlets face in a downward direction, said manifold includes a manifold tube portion which extends downward into said column being in fluid communication with said second end of said suction tube, said first end of said suction tube being in fluid communication with a mid-section having a tap configured to attach to a pump intake tube and a mid-section tube, said pump intake tube being coupled to said intake port of said pump, said mid-section tube being coupled to a pressure transducer, and wherein said float is generally disc shape having a cylindrical bore and an upper surface, wherein said column extends through said cylindrical bore of said float, said float having a low fluid level position and a shut-off level position, wherein in said shut-off level position, said upper surface of said float engages said one or more inlets and close off the fluid communication between said one or more inlets and said fluid collection compartment.

A disposable integrated aspiration pump and fluid collection device comprising:

• a base having a base compartment;
• a pump located in said base compartment, said pump includes an intake port and an exhaust port;
• a fluid collection compartment located above said base;
• a column extends within said fluid collection compartment in substantially a vertical direction, said column includes a lower portion and an upper portion, said column having a cavity connected to said base compartment;
• a manifold is located at said upper portion of said column, said manifold includes one or more inlets;
• a suction tube includes a first end and a second end, said first end of said suction tube is in fluid communication with said intake port of said pump, said suction tube extends through said cavity of said column, and said second end of said suction tube is in fluid communication with said one or more inlets;
• wherein said manifold includes a generally disc shaped portion, said generally disc shape portion including a lower surface which includes said one or more inlets, whereby said one or more inlets face in a downward direction;
• and
• a pressure transducer and a pressure display, said pressure transducer and said pressure display are coupled to a controller located in said base, said suction tube is in fluid communication with said pressure transducer, said controller includes a means of determining a pressure measured at said pressure transducer and displaying the measured pressure on said pressure display, said controller includes means for operating said pump to regulate the pressure,
• wherein said controller includes means for regulating the pressure to a preset maximum vacuum, and means for displaying a measured vacuum.

A disposable integrated thrombectomy and aspiration apparatus for breaking up and aspirating thrombus or other obstructive material in a lumen of a vascular graft or vessel, said apparatus comprising

• a maceration wire extending in an axial direction;
• a motor operatively connected to said maceration wire;
• an aspiration pathway extending between a catheter connection port and an aspiration pump connection port and including an interior surface, at least a portion of said aspiration pathway including an annular portion defined as a boundary between said interior surface of said aspiration pathway and said maceration wire whereby macerated particulate may be aspirated from the patient, at least a portion of said interior surface being slidable in relation to said maceration wire when said portion of said interior surface is moved between a deployed position and a retracted position, said maceration wire extending through said catheter connection port;
• and
• a housing having the aspiration pump connection port at a proximal end of the housing and the catheter connection port at a distal end of the housing, wherein the aspiration pathway extends in an axial direction between the catheter connection port and the aspiration pump connection port,
• wherein said aspiration pathway further includes an interface having a variable length and being fluidly operable with said aspiration pathway when said aspiration pathway is in said retracted position, at least a portion of said interface being fluidly bypassable when said aspiration pathway is in said deployed position, one or more seals in said aspiration pathway maintain a vacuum pressure while said aspiration pathway is moved between said deployed position and said retracted position, a portion of said interior surface and said catheter connection port being slidable in relation to said maceration wire along said axial direction when said aspiration pathway moves between said deployed position and said retracted position.

A disposable thrombectomy maceration and aspiration system for macerating and aspirating thrombus or other obstructive material in a lumen of a vascular graft or vessel, said system comprising:

• a disposable integrated aspiration pump and fluid collection device comprising:
• a base having a base compartment;
• a pump located in said base compartment, said pump includes an intake port and an exhaust port;
• a fluid collection compartment located above said base;
• a column extends within said fluid collection compartment in substantially a vertical direction, said column includes a lower portion and an upper portion, said column having a cavity connected to said base compartment;
• a manifold is located at said upper portion of said column, said manifold includes one or more inlets said manifold includes a generally disc shaped portion, said generally disc shape portion including a lower surface which includes said one or more inlets, whereby said one or more inlets face in a downward direction;
• a suction tube includes a first end and a second end, said first end of said suction tube is in fluid communication with said intake port of said pump, said suction tube extends through said cavity of said column, and said second end of said suction tube is in fluid communication with said one or more inlets;
• a disposable integrated thrombectomy and aspiration apparatus being removably coupled to said disposable integrated aspiration pump and fluid collection device, said apparatus comprising:
• a maceration wire extending in an axial direction;
• a motor operatively connected to said maceration wire;
• an aspiration pathway extending between a catheter connection port and an aspiration pump connection port and including an interior surface, at least a portion of said aspiration pathway including an annular portion defined as a boundary between said interior surface of said aspiration pathway and said maceration wire whereby macerated particulate may be aspirated from a patient, at least a portion of said interior surface being slidable in relation to said maceration wire, said maceration wire extending through said catheter connection port, said aspiration pathway receiving vacuum pressure from said aspiration pump and fluid collection device;
• a housing having the aspiration pump connection port at a proximal end of the housing and the catheter connection port at a distal end of the housing, wherein the aspiration pathway extends in an axial direction between the catheter connection port and the aspiration pump connection port;
• and
• a catheter being removably coupled to said catheter connection port via a catheter coupler and covering a portion of said maceration wire, said catheter further including a flexible sheath extending in said axial direction away from said catheter coupler, said flexible sheath having an inside surface and a distal opening positioned opposite of said catheter coupler, said inside surface and said maceration wire defining a catheter annular portion of said aspiration pathway whereby said inside surface is of sufficient size to allow the macerated particulate to be aspirated from said distal opening through said disposable integrated thrombectomy and aspiration apparatus and into said fluid collection compartment of said disposable integrated aspiration pump and fluid collection device, said catheter being slideably engaged with said maceration wire.