Body fluid drainage tube

Claim 1

A drainage tube for insertion through an access in a body wall to a body cavity, said tube comprising a main body portion having a proximal front end portion and a distal bottom end portion with a drainage channel extending from a fluid inlet opening at the proximal front end to a fluid outlet opening at the distal bottom end, at least one wall segment of the distal end portion having a convex arch-like cross-section running from the proximal portion to the outlet opening, wherein the distal end provides a shield for protecting the drainage channel from being blocked, a flexible flange member extending radially outwardly from the fluid inlet opening, and a hollow stem member extending from the distal end of the main body portion as a continuation of, and in the same general direction as, the convex wall segment and away from the drainage channel, said hollow stem member extending in a substantially straight path which is substantially parallel to said flange member, and further wherein said hollow stem member has a cut-out portion extending along the entire length thereof on the side of the stem member which is furthest from the inlet opening, said cut-out stem member forming an open channel which is an extension of said drainage channel; whereby when said drainage tube is inserted into said access the flange member will prevent the tube from being dislodged from said body cavity and body fluids may be drained through the drainage channel and the hollow stem member.