A catheter includes: a body comprising a body side wall, a proximal end and a distal end; a septum extending from the proximal end to the distal end; a first lumen and a second lumen separated by the septum, each lumen forming a mouth at the distal end; first and second slots formed in a portion of the body side wall at the distal end and in fluid communication with the first and second lumens respectively. The first and second slots extend linearly along a direction parallel to a longitudinal axis of the body. The distal end of the body and the septum terminate in a plane perpendicular to the longitudinal axis. The distal end of the body has a substantially round cross section, while the first and second lumens each have a substantially D-shaped cross-section at the distal end. The two slots each have a width that is between 30% and 60% of a longer dimension of the D-shaped cross-section of a corresponding lumen.

A device for perfusing a coronary sinus of a subject's heart which may include: a double-lumen catheter including: a first lumen having: a proximal opening, and a distal opening configured to be positioned in a coronary sinus of a subject's heart; and a second lumen parallel to the first lumen, the second lumen having: a proximal opening, and a distal opening being offset from the distal opening of the first lumen towards the proximal opening of the second lumen in a longitudinal direction, the distal opening of the second lumen being configured to be positioned in a right atrium of the subject's heart; and an oxygenator connected to the proximal openings of the first lumen and the second lumen, the oxygenator is configured to oxygenate deoxygenated blood.

Various embodiments of a system for priming a catheter assembly are disclosed herein. For example, the system can include a catheter assembly including an elongate body and an operative device coupled thereto. The system can also include a priming vessel configured to receive insertion of the operative device therein. The priming vessel can include a proximal portion secured to the distal portion of the elongate body such that the elongate body is in fluid communication with the priming vessel. The priming vessel can also include a distal end through which air is expelled when a fluid is channeled through the elongate body and into the priming vessel to expel air from within the catheter assembly.

An aortic perfusion catheter is an apparatus that is used during surgery for acute ascending aortic dissection to reduce postoperative injuries from profound hypothermia, ischemia, and reperfusion. The apparatus may include at least one main cannula, an inflation cannula, a drainage cannula, and a balloon tamponade. The at least one main cannula helps maintain blood perfusion to the body during the procedure to reduce postoperative injuries. The inflation cannula enables the selective inflation and deflation of the balloon tamponade to facilitate the insertion and removal of the balloon tamponade along with the at least one main cannula within the descending thoracic aorta. The balloon tamponade prevents blood flow into the operative area to maintain the operative area clear during the procedure. The drainage cannula enables the drainage of blood that may escape the balloon tamponade as well as other bodily fluids.

The disclosure relates to a subcutaneously implanted port device for establishing access to the vascular system of a patient requiring multiple blood treatments over an extended period of time. The systems, devices and methods disclosed herein may reduce miscannulation, promote intra-session hemostasis, and decrease the incidence of bacteremia and sepsis among other improvements and advantages. The devices include a port with a tapered seat for receiving an access tube, the first tapered seat having a proximal portion, a distal portion, and a conical section extending between the proximal portion and the distal portion; and an interface surface configured to engage a blood vessel or a vascular access catheter. The proximal portion of the tapered seat is configured to receive the access tube therethrough, and the tapered seat creates a mismatch fit with a diameter of the access tube when in use for an increase in flow during treatment.

The present disclosure relates to a rotary blood pump system. The rotary blood pump system may comprise an inflow conduit, an outflow conduit, a control system, and a power source. The present disclosure further relates to various inflow conduit assemblies comprising a conduit tip comprised of metal or polymer having an undulating opening surface that provides improved blood flow and washing properties while minimizing regions susceptible to stagnation, and optionally a resilient tip-protecting cage structure that reduces the risk of conduit tip suction events and suction-related injury of the wall of adjacent blood vessels or other blood containing structures. The present disclosure further relates to various outflow conduit assemblies with a conduit tip comprised of metal or polymer wherein the cross-sectional area of the lumen of the conduit or conduit tip is reduced to generate a localized jet-like fluid flow in a blood vessel segment adjacent to the conduit tip.

A percutaneous catheter for blood removal includes a catheter tube extending in an axial direction with a plurality of distal side holes provided on a distal end part of the catheter tube and communicating a lumen of the catheter with an outside of the catheter tube. The plurality of distal side holes is spirally arranged in the axial direction of the catheter tube, and at least one distal side hole at the proximal end side of the spirally arranged side holes is formed to have a diameter smaller than a diameter of a distal side hole at the distal end side of the spirally arranged side holes.

A catheter system insertable into a living body to convey blood has a catheter tube and a stylet. The catheter tube has an expansion portion, a shaft portion, and a lumen. The stylet includes an outer peripheral member that extends in an axial direction and has an outer diameter the same as an inner diameter of the shaft portion, an inner peripheral member provided with an exposed portion exposed from a distal end of the outer peripheral member and provided on an inner periphery of the outer peripheral member so as to be slidable with respect to the outer peripheral member, and a fitting stopper into which a fitting member on an outer periphery of a proximal end of the outer peripheral member is fittable. A region is formed in the fitting stopper in which the outer peripheral member and the fitting member are movable.

A pressure measurement pod for use in blood circuits includes a pressure sensing pod defining a chamber and having a rigid wall portion and an integral flexible wall portion forming a flexible, moveable, fluid-impermeable diaphragm with a first major side thereof facing an interior of the chamber and a second major side opposite the first major side. The second major side faces outwardly away from the chamber, and the pod has ports on sides of the chamber. The internal surfaces of the chamber and ports are shaped such that any contour following the internal surfaces to the outside of one of the ports traces only surfaces characterized by positive or neutral draft angles such that invasive mold portions may be withdrawn through the ports thereby permitting the pressure measurement pod to be molded in a single shot molding process.

An arterial cannula for ECMO includes a main arterial cannula with an inner wall and having a first end with a blood outflow port. The first end is intended to be introduced into an artery so as to inject the blood retrogradely into the artery. A retro-perfusion cannula is configured to be translatably movable between a retracted position in the first end of the main arterial cannula and a deployed position at least partly outside the main arterial cannula and opposite the blood outflow port of the main arterial cannula.