Systems and methods for percutaneous intravascular access and guidewire placement

摘要

A device for allowing passage of a guidewire from a primary blood vessel to an adjacent secondary blood vessel includes a main body having a primary lumen and a secondary lumen, and a piercing member disposed in the secondary lumen, and configured to be moved distally out of the secondary lumen, and to pierce through tissue while being distally moved. A third lumen located within the piercing member is configured to allow placement of a guidewire from the primary blood vessel to the adjacent secondary blood vessel. In one embodiment, the secondary lumen is configured to allow articulation of the distal end of the piercing element. The piercing member has a sharp point on one end to facilitate cutting a small communicating aperture from the primary blood vessel to the secondary blood vessel.

主权项

1. A method of creating intravascular access and guidewire delivery, comprising:
positioning the main body of a device within a primary vessel; manipulating a distal end of the device to engage an inner wall of the primary vessel and to push the primary vessel into close engagement with an adjacent secondary vessel; and extending a piercing member distally from the main body, through the wall of the primary vessel, and through an adjacent wall of the secondary vessel, so that the end of the piercing member is disposed within the secondary vessel, to thereby create a communicating aperture on the opposing walls of the primary and secondary vessels.