A deployment device for lining a vessel having a housing having a proximal end and a distal end opposite the proximal end, the housing defining a guidewire channel, a tube elongated along a longitudinal axis, the tube having a proximal end and a distal end spaced from the proximal end of the tube along the longitudinal axis, a sheath assembly having a hub removably coupled to the distal end of the housing, and a mesh removably coupled to the tube and positioned along the tube. The tube and the sheath assembly are configured to move along the guidewire and into the vessel through a puncture and release the mesh inside the vessel when at least one of the tube and the mesh is actuated. The device is used as a method of mitigating potential injury or harm to the integrity of the patient's vessel lining.

Valve assemblies having improved ability to selectively control flow of fluids through the catheter and prevent leakage of fluids from the proximal end of a catheter that is positioned within a patient. Such improved catheter valve assemblies also prevent leakage of fluids after repeated insertion and removal of medical instruments through the valve.

An anchored dilator includes a push tube having proximal and distal push tube portions. A dilator tip is coupled with the distal push tube portion and is configured for selectable coupling with a catheter. The dilator tip includes an anchor cuff having a cuff interface. The anchor cuff is configured to transition between a shuttle configuration having a shuttle profile and an anchored configuration having an anchored profile larger than the shuttle profile. A cuff operator assembly is configured to transition the anchor cuff between the anchored and shuttle configurations. The cuff operator assembly includes a cuff operator movably coupled with the dilator tip, and an operator shaft coupled with the cuff operator. The operator shaft extends toward the proximal push tube portion. Actuation of the cuff operator with the operator shaft transitions the anchor cuff between the shuttle configuration and the anchored configuration.

A catheter has a cannulated guiding rail extending therethrough, an advance segment of the rail extending at least about 10 cm beyond the distal end of the catheter. The catheter and rail are advanced over a guidewire until the distal end of the advance segment is at a target vascular site. The catheter is thereafter advanced along the rail to the target vascular site.

The distal tip of a sensing catheter is placed in proximity to a target intravascular foreign material. A signal is propagated from the sensing catheter, a return signal is received, and at least a portion of the foreign material is captured and removed when the return signal is indicative of a foreign material located within a capture zone.

A system for accessing a central pulmonary artery includes an elongate, flexible tubular catheter, having a proximal end, a distal end and a catheter hub on the proximal end. An elongate, flexible rail has a proximal end, a distal end and a rail hub on the proximal end. The rail has a distal advance segment which extends at least about 10 cm beyond the distal end of the catheter when the catheter hub is adjacent the rail hub.

A large bore catheter has a guiding rail extending therethrough and an advance segment of the rail extends at least about 10 cm beyond the distal end of the catheter. The advance segment is advanced from the vena cava through the tricuspid and pulmonary valves of the heart into the central pulmonary artery while the distal end of the large bore catheter remains in the vena cava. The large bore catheter is thereafter distally advanced over the rail until the large bore catheter distal end is at least as far as the central pulmonary artery. The rail is thereafter proximally removed from the large bore catheter, and at least a portion of a clot is drawn from a pulmonary artery into the large bore catheter.

An access device for placing a medical article within a body space includes a syringe, a needle, and a sheath which are employed together with a guide wire. The sheath can be coaxially and slideably disposed about the needle. During insertion of the sheath over the needle, guide wire and into the body space, the syringe provides a negative pressure to ensure that any air located between the inside diameter of the sheath and the outside diameter of the needle is drawn into the needle rather than into the body space. In certain embodiments, a dilator is coaxially and slideably disposed about the needle and within the sheath.

A modular dilation device (100) is provided for inserting multiple dilators into a target patient tissue site. The modular dilation device includes a first dilator (104) and a second dilator (530). The first dilator has a first dilator distal end (108) and a first dilator inner lumen (114). The first dilator has a first dilator side wall opening (118). The first dilator distal end has a first dilator open tip (116). The first dilator has a first dilator open slit (120). The first dilator open slit extends between the first dilator side wall opening and the first dilator open tip. The second dilator has a second dilator distal end and a second dilator inner lumen. The second dilator distal end has a second dilator open tip. When the second dilator is joined to the first dilator, the second dilator open tip is adjacent to the first dilator side wall opening.

A micropuncture kit for direct access of a surgically exposed vessel using direct visual guidance includes a micropuncture access needle having a proximal hub coupled to an elongate shaft defining an inner lumen and a visible depth indicator positioned on the elongate shaft a distance away from a distal tip of the elongate shaft. The kit includes an access guidewire sized to be received through the inner lumen of the micropuncture access needle and a microaccess cannula having an elongate body defining an inner lumen and a plurality of visible depth indicators formed on the elongate body. The guidewire includes a distal tip and at least one visible depth indicator positioned on the access guidewire a distance away from the distal tip of the guidewire. Each of the plurality of visible depth indicators identifies a distance from a distal tip of the cannula. Related systems, devices and methods are provided.