US Patent 11883309 Directional stent for accessing extravascular spaces

An extravascular access system includes a tubular stent configured to be deployed in a blood vessel, the stent having a sidewall and a proximal end opening and an internal scaffolding comprising one or more structural members, and an elongate access catheter having a distal end portion configured to access the blood vessel wherein when the stent is deployed in the blood vessel, and the distal end portion of the catheter is inserted into the proximal end opening of the stent, the one or more internal structural members of the stent deflect the distal end portion of the catheter towards a wall of the blood vessel.