Trocar and wound closure device

摘要

A trocar adapted for insertion through a fascia layer of an abdominal wall, comprising a proximal end configured for handling by a user; a distal end configured for insertion into tissue; and a shaft extending in between the proximal end and distal end, wherein the shaft comprises a narrow portion proximal to the distal end, the narrow portion defining at least one recess shaped and sized to receive fascia tissue, the recess ending, at a distal end, with a generally proximally facing surface of the shaft configured directly below the narrow portion, the proximally facing surface and the narrow portion shaped and sized to stabilize the trocar in the abdominal wall by the fascia. In some embodiments, a trocar and external cannula assembly are provided. In some embodiments, the trocar and/or trocar and external cannula assembly are configured for deployment of one or more anchors and/or sutures in the tissue.

主权项

1. A trocar adapted for insertion through a fascia layer of an abdominal wall, comprising:
a proximal end configured for handling by a user; a distal end configured to be inserted into said abdominal wall; and a shaft extending in between said proximal end and distal end;wherein said shaft comprises:a narrow portion proximal to said distal end, said narrow portion defining at least one recess shaped and sized to receive fascia tissue;
a widening configured proximally to said narrow portion, said widening comprising a geometry defining a distally facing surface; wherein said trocar is configured to advance at least one anchor into the tissue; and wherein a shaft portion configured distally to said narrow portion comprises a plurality of fixed projections having tips in the proximal diction, said projections long enough to hold said fascia tissue during advancement of said at least one anchor into said fascia tissue.