Valve stent for intravascular reperfusion therapy

A system, comprising:

• a stent configured to be positioned within a coronary vein of a patient, comprising:
• a valve;
• and
• a stent body coupled to the valve and arranged to transition an expansion state of the stent between a collapsed state and an expanded state;
• an intravascular reperfusion therapy device configured to be positioned within the coronary vein, wherein the intravascular reperfusion therapy device comprises:
• a flow sensor positioned at a distal portion of the intravascular reperfusion therapy device;
• and
• a catheter comprising a lumen shaped to receive the stent,
• wherein the intravascular reperfusion therapy device is configured to deliver, using the stent, reperfusion therapy to a myocardium of a heart of the patient associated with the coronary vein;
• and
• a processor circuit in communication with the intravascular reperfusion therapy device and configured to:
• receive, from the flow sensor, flow data associated with blood flow through the coronary vein;
• determine, based on the flow data, a progression of the reperfusion therapy delivered to the myocardium of the heart;
• and
• control, based on the progression of the reperfusion therapy, at least one of a configuration of the valve or the expansion state of the stent such that back pressure within the coronary vein is controlled,
• wherein, with the stent in the expanded state:
• the stent body is configured to contact a wall of the coronary vein;
• and
• the valve is arranged to deliver the reperfusion therapy by obstructing blood flow in a first direction in the coronary vein to generate the back pressure in an opposite, second direction in the coronary vein,
• wherein the valve is arranged to obstruct the blood flow in the first direction to a first degree in a first configuration of the configuration of the valve and the valve is arranged to obstruct the blood flow in the first direction to a different, second degree in a second configuration of the configuration of the valve.

A stent removably positionable within a coronary vein, comprising:

• a valve;
• a retrieval hook;
• and
• a self-expanding material coupled to the valve and the retrieval hook and arranged to transition the stent between a collapsed state and an expanded state,
• wherein, with the stent in the expanded state:
• the self-expanding material is configured to contact a wall of the coronary vein;
• and
• the valve is arranged to obstruct blood flow in a first direction in the coronary vein to generate back pressure in an opposite, second direction in the coronary vein.

An apparatus, comprising:

• a stent configured to be positioned within a coronary vein of a patient, comprising:
• a valve;
• and
• a stent body coupled to the valve and arranged to transition an expansion state of the stent between a collapsed state and an expanded state;
• an intravascular reperfusion therapy device configured to be positioned within the coronary vein, wherein the intravascular reperfusion therapy device comprises a catheter comprising a lumen shaped to receive the stent, wherein the intravascular reperfusion therapy device is configured to deliver, using the stent, reperfusion therapy to a myocardium of a heart of the patient associated with the coronary vein,
• wherein, with the stent in the expanded state:
• the stent body is configured to contact a wall of the coronary vein;
• and
• the valve is arranged to deliver the reperfusion therapy by obstructing blood flow in a first direction in the coronary vein to generate the back pressure in an opposite, second direction in the coronary vein.