TROCAR SYSTEM HAVING EXPANDABLE PORT

摘要

An apparatus (10) and method for forming and enlarging percutaneous penetrations comprises an elongate dilation member (30) which receives an elongate expansion member in an axial lumen thereof. The dilation tube includes a tubular braid (26) which usually comprises a mesh of non-elastic filaments which are radially expandable from a small diameter configuration to a large diameter configuration and which is optionally covered by a removable sheath.