An apparatus for promoting hemostasis of a puncture formed in a blood vessel accessible through an incision tract and methods of use thereof. The apparatus includes distal and proximal balloons each having a contracted position and an expanded position, the proximal balloon spaced by a predetermined...http://www.google.com/patents/US7789893?utm_source=gb-gplus-sharePatent US7789893 - Method and apparatus for promoting hemostasis of a blood vessel puncture
