A device and method for visualization of the intravascular creation of autologous valves, and particularly venous valve, is disclosed herein. One aspect of the present technology, for example, is directed toward a delivery catheter that can include a lumen configured to receive a dissection assembly and a trough having a plurality of transducers electrically coupled to a proximal portion of the delivery catheter. At least one of the transducers can be configured to emit a signal towards a portion of a blood vessel adjacent the trough, and at least one of the transducers can be configured to receive a reflection of the emitted signal.

A catheter system for accessing the central venous system through an occlusion in the neck region.

A catheter may be used for treating chronic venous insufficiency (CVI) by remodeling a venous valve within a vein. The catheter is advanced through the vein to a position proximate the venous valve, the catheter including a hollow needle extendable out a first side wall of the catheter and an inflatable balloon located on a second, opposing, side wall of the catheter. The inflatable balloon is inflated in order to urge the catheter towards a vessel wall opposite that of the inflatable balloon. The hollow needle is advanced at least partially into the vessel wall opposite that of the inflatable balloon and a bulking agent is injected near the venous valve in order to remodel the venous valve. The bulking agent may be injected within a subintimal space within the vessel wall, or into an advential space outside of the vessel wall.

A catheter for removing tissue from a body lumen and for providing information relating to the body lumen. The catheter includes a tissue cutting element that rotates relative to the catheter body and is mounted to the drive shaft for imparting rotation to the tissue cutting element. An energy emitting element of the catheter rotates relative to the catheter body and is rotatable independently of the tissue cutting element.

A catheter for removing tissue from a body lumen and for providing information relating to the body lumen. The catheter includes a tissue cutting element that rotates relative to the catheter body and is mounted to the drive shaft for imparting rotation to the tissue cutting element. An energy emitting element of the catheter rotates relative to the catheter body and is rotatable independently of the tissue cutting element.

Devices and methods for the treatment of chronic total occlusions are provided. One disclosed embodiment comprises a method of facilitating treatment via a vascular wall defining a vascular lumen containing an occlusion therein. The method includes inserting an intramural crossing device into the vascular lumen, positioning at least the distal tip of the crossing device in the vascular wall, advancing an orienting device over the crossing device such that an orienting element of the orienting device resides in the vascular wall, inserting a reentry device, and re-entering the true vascular lumen.

The invention generally relates to method and apparatus for crossing an obstruction in a tubular member, and more particularly to a medical device method for crossing of a chronic occlusion in a subintimal or interstitial space of an artery.

Embodiments of the present disclosure provide a medical device for snaring guidewire during endovascular procedure. The medical device includes a catheter and an elongate member. The catheter is deployed into a lumen of a blood vessel through a first vascular access point of a subject. The elongate member includes a distal tip mounted with a first magnetic element and configured to be insertable within the catheter. The elongate member is deployed in the lumen of the blood vessel by advancing through the catheter. The first magnetic element of the elongate member is configured to exert magnetic force to magnetically couple with a guidewire advancing within the lumen through a second vascular access point. The magnetic coupling of the elongate member and the guidewire facilitates attracting the guidewire into the catheter and draw out from the first vascular access point by withdrawing the elongate member while advancing the guidewire.

Devices, systems, and methods to generate a bypass lumen in connection with a chronic total occlusion procedure. An exemplary method comprises introducing at least part of a first elongated body into a lumen of an artery so that a distal tip of the first elongated body is positioned on a first side of an occlusion within the lumen of the artery; inserting the distal tip of the first elongated body into a wall of the artery in between a tunica media and a tunica intima of the artery; advancing the distal tip of the first elongated body in between the tunica media and the tunica intima; and further advancing the distal tip of the first elongated body back into the lumen of the artery to generate a bypass lumen and so that the distal tip is positioned on an opposite second side of the occlusion within the lumen.

The present disclosure is directed to a device. The device may include a distal shaft defining a central lumen and an orienting element comprising at least one inflatable member. Wherein a first portion of the orienting element extending from the shaft in a first direction and a second portion of the orienting element extending from the shaft in a second direction. Further, wherein the second direction is substantially opposite the first direction.