Cam driven compaction tube for vascular closure device

摘要

A method and apparatus for sealing a puncture or incision formed percutaneously in a tissue. The apparatus including an anchor, a sealing plug, a filament connected between the sealing plug and the anchor, a compaction member assembly, a spool and a driving plate. The compaction member assembly being disposed adjacent the sealing plug and structured and arranged to apply an axially directed compressive force to automatically compact the sealing plug toward the anchor. The spool has a portion of the filament wound thereon. The driving plate being connected to the spool and having a cam surface portion. The cam surface portion is arranged to contact a proximal end of the compaction member assembly upon rotation of the spool to advance a distal end of the compaction member assembly.

主权项

1. A tissue puncture closure device, comprising:
an anchor; a sealing plug; a filament positioned between the sealing plug and the anchor; a compaction member assembly structured and arranged to apply an axially directed compressive force to automatically compact the sealing plug toward the anchor, the compaction member assembly having a distal end and a proximal end; a spool having a portion of the filament wound thereon; an eccentric cam, the cam being eccentrically mounted relative to the spool, the cam having a cam surface portion, the cam surface portion being eccentric relative to a rotation axis of the cam, the cam surface portion being arranged to contact the compaction member assembly upon rotation of the spool to advance the distal end of the compaction member assembly.