The Duett closure device: concept and experimental results.

Purpose of this paper is to investigate the hemostatic capabilities of a novel vascular sealing device consisting of a balloon catheter and procoagulant. Vascular sheaths were placed percutaneously in the femoral arteries of dogs. The sealing device was evaluated using the balloon catheter alone in 6 femoral arteries and with the addition of a procoagulant in 21 femoral arteries. The balloon catheter alone was successfully deployed in 6 of 6 femoral arteries achieving immediate hemostasis. In a second study in which the procoagulant was delivered following balloon placement, the sealing device was successfully deployed and hemostasis was achieved in 20 of 21 attempts (95%) despite removal of the balloon catheter. In a subset of fully anticoagulated animals, hemostasis was achieved in the sealing device-treated arteries at 6.5 +/- 3.4 minutes but in none of the controls (p < 0.001). This novel vascular sealing device successfully achieves rapid hemostasis in normal and anticoagulated dogs following percutaneous vascular procedures.