Abstract:
A catheter for subintimally bypassing an occlusion in a vessel includes a catheter shaft including a guidewire lumen disposed therethrough and having a shaft longitudinal axis, at least two balloons coupled to an exterior of the catheter shaft such that longitudinal axes of the balloons are in a common plane with the shaft longitudinal axis when uninflated and with no external forces on the catheter. The balloons are configured such that when the catheter is disposed in the subintima of a vessel and the balloons are inflated, a tip of the catheter shaft is oriented towards a true lumen of the vessel distal of the occlusion.
Abstract:
A catheter for use with a subintimal reentry guidewire includes a proximal portion having a proximal guidewire lumen and a proximal inflation lumen, a distal portion having a distal guidewire lumen and a distal inflation lumen, and an intermediate portion disposed between the proximal portion and the distal portion and having an intermediate inflation lumen in fluid communication with the proximal and distal inflation lumens. The intermediate portion is devoid of a guidewire lumen. A blocking mechanism disposed in the distal portion of the catheter is transformable from a non-blocking configuration in which a guidewire is free to translate through the distal guidewire lumen and a blocking configuration in which a guidewire disposed in the distal guidewire lumen is prevented from translating through the distal guidewire lumen.
Abstract:
A catheter for subintimally bypassing an occlusion in a vessel includes a catheter shaft including a guidewire lumen disposed therethrough and having a shaft longitudinal axis, at least two balloons coupled to an exterior of the catheter shaft such that longitudinal axes of the balloons are in a common plane with the shaft longitudinal axis when uninflated and with no external forces on the catheter. The balloons are configured such that when the catheter is disposed in the subintima of a vessel and the balloons are inflated, a tip of the catheter shaft is oriented towards a true lumen of the vessel distal of the occlusion.
Abstract:
A catheter for use with a subintimal reentry guidewire includes a proximal portion having a proximal guidewire lumen and a proximal inflation lumen, a distal portion having a distal guidewire lumen and a distal inflation lumen, and an intermediate portion disposed between the proximal portion and the distal portion and having an intermediate inflation lumen in fluid communication with the proximal and distal inflation lumens. The intermediate portion is devoid of a guidewire lumen. A blocking mechanism disposed in the distal portion of the catheter is transformable from a non-blocking configuration in which a guidewire is free to translate through the distal guidewire lumen and a blocking configuration in which a guidewire disposed in the distal guidewire lumen is prevented from translating through the distal guidewire lumen.
Abstract:
A catheter for use with a subintimal reentry guidewire includes a proximal portion having a proximal guidewire lumen and a proximal inflation lumen, a distal portion having a distal guidewire lumen and a distal inflation lumen, and an intermediate portion disposed between the proximal portion and the distal portion and having an intermediate inflation lumen in fluid communication with the proximal and distal inflation lumens. The intermediate portion is devoid of a guidewire lumen. A blocking mechanism disposed in the distal portion of the catheter is transformable from a non-blocking configuration in which a guidewire is free to translate through the distal guidewire lumen and a blocking configuration in which a guidewire disposed in the distal guidewire lumen is prevented from translating through the distal guidewire lumen.
Abstract:
A catheter for use with a subintimal reentry guidewire includes a proximal portion having a proximal guidewire lumen and a proximal inflation lumen, a distal portion having a distal guidewire lumen and a distal inflation lumen, and an intermediate portion disposed between the proximal portion and the distal portion and having an intermediate inflation lumen in fluid communication with the proximal and distal inflation lumens. The intermediate portion is devoid of a guidewire lumen. A blocking mechanism disposed in the distal portion of the catheter is transformable from a non-blocking configuration in which a guidewire is free to translate through the distal guidewire lumen and a blocking configuration in which a guidewire disposed in the distal guidewire lumen is prevented from translating through the distal guidewire lumen.