The LimFlow System reinvents the anatomy in a percutaneous treatment by diverting blood around diseased arteries and into the tibial vein to supply high flow of oxygenated blood to the ischemic foot.
This minimally invasive procedure uses two ultrasound-guided catheters - one venous and one arterial—to create the arterio-venous crossing. A proprietary LimFlow crossing covered stent is then placed to create the connection between the artery and the vein.
The procedure is summarized in the figure on top:
- The LimFlow venous ultrasound catheter is advanced into the tibial vein, and the LimFlow arterial ultrasound catheter is advanced into the tibial artery.
- Once at the targeted crossover site, the arterial ultrasound catheter is rotated until peak Ultrasound signal is achieved.
- Once optimal ultrasound signal is achieved, the imbedded needle in the arterial ultrasound catheter is advanced into the tibial vein.
- A standard guide wire is installed through the crossing needle, which allows for the deployment covered nitinol stent, creating the arterio-venous connection.
- Finally, after stent dilation, both catheters and the guide wire are removed.