Patent ID: 7572274

Claim:
A device for hemostasis of a puncture site at the end of a tissue tract leading to a body lumen, the device comprising: a first tubular member having a proximal end and a distal end configured for insertion through an existing sheath so as to traverse a length of the sheath; a second tubular member slidably disposed over the first tubular member and configured for insertion through the existing sheath so as to traverse the length of the sheath; an expansible member disposed on the distal end of the first tubular member and configured to be expandable within a lumen of a vessel and to be seated against the puncture site when expanded; and a spring coil tensioning member slidably disposed over the first tubular member, a proximal end of the tensioning member being fixedly attached to a distal end of the second tubular member and a distal end of the tensioning member being fixedly attached to a distal portion of the first tubular member; and wherein the spring coil tensioning member has a lengthened configuration when tension is applied by the second tubular member and a compressed configuration in the absence of such tension and, when in the compressed configuration, is capable of embedding in subcutaneous tissue of the tract leading to the vessel so as to anchor and maintain tension of the expansible member against the puncture site at a vascular surface of the lumen.