Patent ID: 7731732
Filing Date: 2010-06-08
Classification: A61B

Abstract:
1. A closure device for closing a puncture wound, said device deliverable in a delivery sheath, said puncture wound having a length along a tissue tract that resolves in an interior opening of a vessel or cavity, said closure device comprising: (a) a distal section for placing inside said interior opening of said vessel or cavity, said distal section lodged within a delivery sheath having proximal and distal ends, said delivery sheath capable of penetrating said wound along said length of said wound to pass through said interior opening and release said distal section, said released distal section capable of rotation of about 90 degrees to provide resistance against said interior opening, (b) a middle section connected to said distal section so that upon rotation of said distal section, said middle section exterior to said vessel or cavity, remaining in connection with said distal section, (c) a proximal section connected to said middle section, said proximal section comprising a bunchable material capable of bunching in said tissue tract upon deployment, said proximal section also released from said delivery sheath in an unbunched state, bunchable upon release, (d) a first tension member connected to said distal section for rotating said distal section 90 degrees inside said vessel or cavity and placing said distal section inside said interior opening of said vessel or cavity to provide resistance against said interior opening, and (e) a second tension member connected to said proximal section for bunching said bunchable material of said proximal section within said tissue tract, thereby closing said puncture wound, (f) a plunger for pushing said distal section into said vessel and rotating it 90 degrees in coordination with a pulling of said first tension member, and for bunching said proximal section by pushing distally with said plunger while said second tension member is pulled proximally, (g) said first tension member capable of withdrawing said distal section from inside said vessel or cavity to be next to and folded into said middle section within said tissue tract, thereby removing said distal section from said vessel or cavity.