Trocar with profile to reduce insertion force

摘要: A trocar having a blade with shaft (26) and body (14). The of the has shoulder (36) creating stepped relationship between blade. thickness step is substantially same as wall (t) cannula (12) that fits over inside diameter entire length outside distal end number slits (40) finger-like segments (42) are formed material biased radially inwardly. allow fingers to collapse around ends have shape designed conform outer