Double lumen aortic cannula and cross clamp assembly and related methods

A cardiothoracic surgical device comprising:

• a dual lumen cannula comprising a distal end portion with a tubular body configured to reside inside an aorta of a patient and that extends in a straight longitudinal direction to position a bottom of the tubular body in line with and below a top of the tubular body, wherein the tubular body comprises an outer wall surrounding a first lumen and a second lumen that are in fluid isolation from each other, wherein the first lumen comprises a first orifice extending through the outer wall that is configured to face a first direction inside the aorta, and wherein the second lumen comprises a second orifice extending through the outer wall that is configured to face a second direction that is different than the first direction inside the aorta with the first orifice and the second orifice being circumferentially spaced apart;
• a first conduit that is coupled to the first lumen and that is configured to extend outside the aorta and has a length sufficient to extend externally from a patient;
• a second conduit that is coupled to the second lumen and that is configured to extend outside the aorta with a length sufficient to extend externally from the patient;
• and
• a clamp assembly detachably coupled to the dual lumen cannula and configured with first and second clamp arms that are configured to align with the tubular body of the dual lumen cannula, wherein the first and second clamp arms are configured to clamp opposing sides of a vessel wall of the aorta between the tubular body and the first and second clamp arms to thereby compress the vessel wall against the outer wall of the tubular body and thereby provide first and second fluidly isolated segments of the aorta,
• wherein at least one of the first conduit and the second conduit extends from the tubular body at a position that is outside of and laterally spaced apart from the clamp assembly,
• wherein the clamp assembly comprises a hinge and a first arcuate leg attached to the first clamp arm, the first arcuate leg positioned below the hinge and projects forward of the hinge behind the first clamp arm toward a medial portion of the first clamp arm and further comprises a second arcuate leg attached to the second clamp arm, the second arcuate leg positioned below the hinge and projects forward of the hinge behind the second clamp arm toward a medial portion of the second clamp arm, and wherein the first clamp arm and the second clamp arm define an open U-shape positioned laterally spaced apart from the hinge when the clamp assembly is in a closed position.

A cardiothoracic surgical device comprising:

• a dual lumen cannula comprising a distal end portion configured to reside inside an aorta of a patient, wherein the distal end portion comprises an elongate body, wherein the elongate body comprises an outer wall, a closed distal tip and an internal wall inside the outer wall that extends across the elongate body in a longitudinal direction, wherein the elongate body comprises a first lumen positioned on one side of the internal wall with a first orifice extending through the outer wall and a second lumen on an opposing side of the internal wall with a second orifice extending through the outer wall, wherein the first lumen is in fluid isolation from the second lumen, and wherein the distal end portion further comprises a coupling pin that extends laterally outward of the elongate body at a position that is above and adjacent to the elongate body;
• a clamp assembly that is detachably coupled to the coupling pin, the clamp assembly comprising a hinge with first and second clamp arms that are configured to pivot relative to the hinge between open and closed positions, wherein the hinge is above and laterally spaced apart from the first and second clamp arms, wherein, when coupled together, the elongate body remains in a fixed position relative to the clamp assembly, and wherein in the closed position, the first and second clamp arms are configured to close against the elongate body with a vessel wall of an aorta therebetween to thereby separate the aorta into two fluidly isolated compartments;
• a first conduit that is attached to the first lumen and that is configured to extend outside the aorta, with a length sufficient to extend external to the patient;
• and
• a second conduit that is attached to the second lumen and that is configured to extend outside the aorta, with a length sufficient to extend external to the patient,
• wherein the clamp assembly comprises an aperture sized and configured to slidably receive the coupling pin to hold the clamp assembly in a fixed longitudinal position relative to the elongate body, and wherein the coupling pin extends laterally through the aperture so that a free end of the coupling pin is outside of the clamp assembly.

A cardiothoracic surgical device comprising:

• a dual lumen cannula comprising a distal end portion configured to reside inside an aorta of a patient, wherein the distal end portion comprises an elongate body, wherein the elongate body comprises an outer wall, a closed distal tip and an internal wall inside the outer wall that extends across the elongate body in a longitudinal direction, wherein the elongate body comprises a first lumen positioned on one side of the internal wall with a first orifice extending through the outer wall and a second lumen on an opposing side of the internal wall with a second orifice extending through the outer wall, wherein the first lumen is in fluid isolation from the second lumen, and wherein the distal end portion further comprises a coupling pin that extends laterally outward of the elongate body at a position that is above and adjacent to the elongate body;
• a clamp assembly that is detachably coupled to the coupling pin, the clamp assembly comprising a hinge with first and second clamp arms that are configured to pivot relative to the hinge between open and closed positions, wherein the hinge is above and laterally spaced apart from the first and second clamp arms, wherein, when coupled together, the elongate body remains in a fixed position relative to the clamp assembly, and wherein in the closed position, the first and second clamp arms are configured to close against the elongate body with a vessel wall of an aorta therebetween to thereby separate the aorta into two fluidly isolated compartments;
• a first conduit that is attached to the first lumen and that is configured to extend outside the aorta, with a length sufficient to extend external to the patient;
• and
• a second conduit that is attached to the second lumen and that is configured to extend outside the aorta, with a length sufficient to extend external to the patient,
• wherein the clamp assembly comprises a first arcuate leg attached to the first clamp arm, the first arcuate leg positioned below the hinge and projects forward of the hinge behind the first clamp arm toward a medial portion of the first clamp arm and a second arcuate leg attached to the second clamp arm, the second arcuate leg positioned below the hinge and projects forward of the hinge behind the second clamp arm toward a medial portion of the second clamp arm, and wherein the first clamp arm and the second clamp arm define an open U-shape positioned laterally spaced apart from the hinge when the clamp assembly is in a closed position.