Disengagable cam system for tissue puncture closure device

摘要

A method and apparatus for sealing a puncture or incision formed percutaneously in a tissue. The apparatus includes an anchor, a sealing plug, a suture, a compaction member assembly, a spool assembly, and a release member. The compaction member assembly is structured and arranged to apply a compressive force to compact the sealing plug toward the anchor. The spool assembly includes a plurality of post members, and the suture is wound about the post members to define a suture cam path. Unspooling the suture along the suture cam path provides driving of the compaction member assembly. The release member is operable to move the post members to release the suture member from the spool assembly.

主权项

1. A tissue puncture closure device, comprising:
an anchor; a sealing plug; a suture; a compaction member assembly structured and arranged to apply an axially directed compressive force to compact the sealing plug toward the anchor; a spool assembly comprising a plurality of post members, the suture being wound about and contacting the post members to define a suture cam path, the suture cam path having a variable radius relative to an axis of rotation of the spool assembly, wherein unspooling the suture along the suture cam path provides driving of the compaction member assembly; a release member being operable to move the post members to release the suture from the post members after driving of the compaction member assembly.