A vascular access device for haemodialysis permanently implantable in a patient having a pre-existing arteriovenous fistula or, alternatively, in a vein, an artery or between a vein and an artery, to create an artificial arteriovenous fistula and a vascular access healing device and a sterile package containing a single-use device of collecting and/or injecting blood usable in combination with the vascular access device.

A cannulation chamber is provided for use with an arteriovenous graft including a flexible conduit. The cannulation chamber comprises an elongated body defining an annular passageway having a longitudinal axis extending between a first end and a second end. The body receives and surrounds the conduit in the passageway. The body comprises a self-sealing material and a cannulation port that exposes the self-sealing material. A flexible resilient elongated back plate is embedded in the body of the cannulation chamber such that the back plate extends generally parallel with and may partially surround the passageway. The back plate is formed of a substantially rigid material such that when a needle is inserted through the cannulation port and the self-sealing material, the needle is inhibited or prevented from extending through the back plate.

Fluid access devices include a machine-side hydraulic circuit and a patient-side hydraulic circuit, and are configurable between a connected state and at least one disconnected state. In the connected state, fluid flows between the machine-side hydraulic circuit and the patient-side hydraulic circuit. In the disconnected state, fluid does not flow between the machine-side hydraulic circuit and the patient-side hydraulic circuit. In some disconnected states, fluid recirculates through at least one of the machine-side hydraulic circuit or the patient-side hydraulic circuit in the disconnected state.

A device and methodology for gaining access into a body cavity of a patient is described and which includes an elongated sheath; an elongated dilator which is telescopingly received in the sheath, and wherein the elongated dilator has a distal end which is received within a body cavity to be accessed, a selectively inflatable occlusion balloon mounted on the dilator, and first and second sources of pressurized fluid which is coupled in fluid flowing relation relative to the dilator, and which further is effective, on the one hand, for inflating the occlusion balloon, and secondly for delivery into the body cavity of the patient based on the desires of a clinician.

A method and a system are provided for detecting a condition indicative of a dislodged needle in a hemodialysis procedure. A venous return pressure for a patient undergoing dialysis is measured. The venous return pressure is analyzed via a controller, and an intravascular blood pressure in proximity to a location of needle insertion into the patient is derived. A lower limit is calculated as a function of the intravascular blood pressure via the controller. An average of the venous return pressure is calculated via the controller during a predetermined time window. The average is compared to the lower limit via the controller, and if the average is within a specified range of the lower limit, the controller determines that a condition indicative of a dislodged needle is present.

A split-tip catheter and methods for deploying a split-tip catheter in a right atrium are provided. The catheter is configured with a distal potion including a first and a second distal end regions elastically divergable from alignment along a splitting plane to regain a relaxed configuration. The first distal end region terminates in a first tip having a first forward opening, and the second distal end region terminates in a second tip having a second forward opening. Catheter deployment may include directing the first forward opening generally towards an anterior right atrium wall portion and applying the first forward opening to withdraw blood from the right atrium.

A double lumen catheter includes: a circumferential wall 101 forming a lumen extending from a proximal end to a distal end; and a partition 102 dividing the lumen into a first passage 110 and a second passage 120 extending in a longitudinal direction. Distal ends of the first passage 110 and the second passage 120 of the circumferential wall 101 are aligned with each other. The partition 102 includes a projection 103 projecting beyond the distal end of the circumferential wall 101, and having a U-shaped plane. The first passage 110 has, at the distal end, a first passage slit 111 formed by cutting out a part of the circumferential wall 101 around a circumferential center of the circumferential wall 101.

A vascular access port can include a base that can be attached to a vessel and a body extending away from the base in at least a vertical direction. A height of the body in the vertical direction can be sufficiently small such that the entire port can be implanted subcutaneously in a patient. The port can include a guidance passageway that is at least partially defined by the body and can direct an access device into a vessel of a patient when the port is attached to the vessel. In some arrangements, the guidance passageway includes a funnel region that decreases in size from a proximal end of the guidance passageway toward a distal end of the guidance passageway that defines an opening through the bottom surface of the port.

Described here are devices, systems, and methods for cannulating a vessel. Generally, the method may comprise advancing a stent into a first vessel and deploying the stent in the first vessel to hold open one or more valves. This may permit retrograde blood flow through the blood vessel in peripheral vasculature and aid in cannulation of the blood vessel.

Systems, methods, and articles for providing an antimicrobial composition to the proximal elements of a trans-dermal catheter and into the lumen of the transdermal catheter are disclosed. In an embodiment, an antimicrobial composition on surface a cap element transfers antimicrobial to the proximal end of the transdermal catheter. The system comprises an elongate member configured for insertion into a lumen of a catheter, the elongate member containing an antimicrobial.