Device for treatment of hemorroids and rectal tissue after surgery treatment

Claim 1

A two-piece rectal insert adapted to contain a fluid coolant comprising; an elongated tube having a closed rounded end and an opposite open end bounded by a top rim, winged stop means integral with said tube radially extending from the external periphery of said tube and axially spaced a substantial distance from said open end rim, a unitary cap attachable over said tube open end rim to retain fluid coolant in said tube, pull means on the center of said cap to permit removal of the insert from the rectum, disparate first and second sealing and interlocking means attaching said cap about said tube open end and preventing leakage of fluid coolant from said tube, said first sealing and interlocking means including an annular distal lip on said cap contoured at the junction of said tube and said cap smoothly with a continuous change of curvature in all directions in the vicinity of said junction, said distal lip having an inturned edge, a cylindrical outer projection on said stop means having an outer wall and projecting axially in the direction of said tube open end, an annular groove at the base of said wall, said cap lip concentrically engageable about said stop means outer projection with said cap inturned edge adapted to snap fit within said stop means annular groove, said second sealing and interlocking means disposed radially inwardly of said first sealing and interlocking means and including an inner cylindrical projection on said cap closely insertable within said tube open end and axially extending substantially past said stop means, a middle cylindrical projection on said cap axially extending concentrically of said inner projection and defining an intermediate annular groove therebetween adapted to tightly receive said tube top rim whereby, attachment of said cap to said tube provides a fluid tight insert with dual, disparate sealing and interlocking components co-joined in a firm manner.