Patent ID: 8444671

Claim:
A method for enhancing the hemostasis of a puncture site in a body lumen at a distal end of a tissue tract, comprising: advancing a hemostatsis enhancing device through the tissue tract, the hemostasis enhancing device including a first catheter and a second catheter, the first catheter comprising: a first tubular member having a proximal end and a distal end with one inner lumen extending between at least a longitudinal portion thereof, the first tubular member comprising external and internal tubular bodies each having proximal and distal ends with at least one of the external and the internal tubular bodies being longitudinally movable with respect to the other; and a first expansible member having proximal and distal ends and disposed on the distal end of the first tubular member with a distal end of the first expansible member being connected to the distal end of internal tubular body and a proximal of the first expansible member being connected to the distal end of external tubular body; the second catheter comprising a tubular member having distal and proximal ends and a second expansible member at said distal end; wherein the method comprises: positioning the distal end of the first catheter through the tissue tract and puncture site to a location within the body lumen; expanding the first expansible member on a luminal side of the puncture site; and expanding the second expansible member at the distal end of the first catheter so that the first and second expansible members are expanded in tandem in the body lumen.