Patent ID: 8394122

Claim:
An apparatus for sealing a puncture extending through tissue, comprising: an elongate member comprising a proximal end, a distal end sized for insertion into a puncture through tissue, and an expandable member on the distal end; a cartridge comprising a housing on a proximal end thereof, a distal end sized for insertion into the puncture, and a lumen extending between the proximal and distal ends sized for receiving the elongate member therein; a sealant disposed within the cartridge lumen adjacent the cartridge distal end; a pusher member disposed within the cartridge lumen adjacent to the sealant; and a tamping device comprising: a slider tube within the housing and coupled to the cartridge, the slider tube being slidable relative to the housing; an auto advance spring compressible between the slider tube and a proximal surface of the housing; and a tamping spring disposed within the slider tube and coupled between the pusher member and a secondary pusher tube.