An access assembly (100) including an anti-collapsing structure (140) is provided. The access assembly includes a compressible body (112) having first and second ends (114,116) and a central portion (120) extending therebetween. The compressible body defines at least a first lumen (134) configured to receive an instrument in a sealing manner. The access assembly further includes an anti-collapsing structure extending at least partially between the proximal and distal ends of the compressible body. The anti-collapsing structure is configured to permit compression of the compressible body during insertion into an incision and return the compressible body to an uncompressed condition following insertion.
