Embodiments of the disclosed technology provide flow diverting devices for dialysis vascular access, and methods for use therewith. According to some embodiments of the disclosed technologies, a medical device comprises: a tubular vascular stent; and a flow restrictor disposed within the tubular vascular stent. According to some embodiments of the disclosed technologies, a method comprises: providing a medical device, the medical device comprising: a tubular vascular stent, and a flow restrictor disposed within the tubular vascular stent; and deploying the medical device at a site within a vascular access of a patient. According to some embodiments of the disclosed technologies, a medical device comprises: a tubular vascular stent; one or more anchor struts formed on at least one end of the tubular stent; a flow restrictor disposed within the tubular vascular stent; and a tubular stent cover, wherein the vascular stent is disposed within the tubular stent cover.

A first method of forming a blood access hole includes: cutting a blood vessel; and connecting the cut blood vessel to a skin. A second method of forming a blood access hole includes: forming an opening in a skin; and connecting a blood vessel, at least a part of which is incised, to the opening. A third method of forming a blood access hole includes: connecting a blood vessel, at least a part of which is incised, to a skin, to open a part of an inner wall of the blood vessel to the atmosphere. A blood access hole 1 in which a blood vessel 10 inside a human body is directly connected to the skin 20 of the human body.

Preferred embodiments relate to devices for performing a lymphovenous bypass procedure. A first ring is secured to tissue connected to at least one lymphatic channel of a patient and a second ring is attached to a vein of the patient. An end of the lymphatic channel that extends through the first ring is inserted into an open end of the vein and the rings are connected together to establish fluid flow from the lymphatic channel into the vein.

An ablation system, configured to create a shunt between a left atrium and a coronary sinus of a patient, includes an ablation device comprising a proximal body defining a distal-facing surface configured to contact the coronary sinus wall, a distal body defining a proximal-facing surface positioned opposite the distal-facing surface and configured to contact the left atrium wall, and first and second heating elements disposed on the distal-facing and proximal-facing surfaces, respectively. The heating elements are configured to ablate tissue between the left atrium and the coronary sinus of the patient to create the shunt. The system further includes an expandable dilation element configured to dilate a puncture formed through the coronary sinus wall and the left atrium wall to facilitate introduction of the distal body of the ablation device into the left atrium.

Devices, systems and methods for treating diseases and disorders effecting the cardiovascular system of the human body are disclosed. An exemplary device in accordance with this disclosure comprises a shaft, tip member fixed to the shaft, and a probe extending beyond a distal surface of the tip member. In some useful embodiments, the tip member is relatively atraumatic and the probe is shaped so as to be more likely to produce trauma than the tip member.

A deployment tool and associated method are disclosed for implanting a vascular connector in a patient. The vascular connector deployment tool has a housing, an inner sheath extending distally from the housing, a floating mandrel, a vascular connector disposed coaxially about the mandrel, and an outer sheath telescopically deployed over an inner sheath. The outer sheath constrains the vascular connector around the mandrel in an insertion profile when the outer sheath is disposed over the vascular connector. The inner sheath may be rotated to cause the outer sheath to retract relative to the floating mandrel and expose sequential portions of the vascular connector. A drive disposed within the housing and coupled to a proximal end of the outer sheath translates rotational motion of the inner sheath into longitudinal motion of the outer sheath.

Systems and methods for delivering a device for regulating blood pressure between a patient's left atrium and right atrium are provided. The delivery apparatus may include a first catheter, a hub having one or more engagers disposed thereon configured to releasably engage with a first expandable end of the shunt in a contracted delivery state within a lumen of a sheath, and a second catheter extending through a center lumen of the first catheter and the hub, wherein the first catheter, the hub, and the second catheter are independently moveable relative to the sheath. The inventive devices may reduce left atrial pressure and left ventricular end diastolic pressure, and may increase cardiac output, increase ejection fraction, relieve pulmonary congestion, and lower pulmonary artery pressure, among other benefits. The inventive devices may be used, for example, to treat subjects having heart failure, pulmonary congestion, or myocardial infarction, among other pathologies.

Devices and methods divert blood flow from a first vessel to a second vessel and maintain blood flow in the first vessel. The device includes a first segment and a second segment. The first segment is configured to anchor in the first vessel. The first segment includes a window to allow blood to flow into the first segment, through the window, and distal in the first vessel. The second segment is configured to anchor in the second vessel. The second segment is configured to allow blood to flow into the first segment, through the second segment, and into the second vessel.

A medical device assembly includes a hinge rod having a first portion and a second portion, and a pedestal is coupled to the second portion of the hinge rod, the pedestal having a top surface, and portions of the pedestal cooperate to define a trough that is configured to hold a first portion of a vessel on the top surface of the pedestal. A retainer is movably coupled to the pedestal, and the retainer has a planar member having a lower surface configured to oppose the top surface of the pedestal. A joint member is coupled to the hinge rod, and a clamp assembly is releasably coupled to the joint member such that when the clamp assembly is in a locked configuration, the hinge rod is not repositionable, and when the clamp assembly is in an unlocked configuration, the hinge rod is repositionable.

Methods and apparatus for safely forming anastomoses comprise magnetic members configured to accommodate different tissue types and patients of differing size and weight. The magnetic members may comprise first and second magnetic members configured to engage each other with a force sufficient to form anastomosis while taking a sufficiently long time to allow the intestinal walls to fuse together. The first and second magnetic members can be configured to form anastomoses between both similar and different types of intestinal tissue. An elongate surgical placement instrument can be configured to engage and manipulate the first and second magnet members through the intestinal wall from outside the intestinal wall in order to place each of the magnetic members at desired locations.