Device for removing a biopsy fluid sample from a body cavity

A device for removing fluid from a human body cavity for the determination of a biopsy test thereon comprising:

• (a) a hollow cap having a cylindrically shaped outer surface and having a first end and a second end, said cap being closed at said first end except for an opening extending from the interior to the exterior of said cap, and said cap having a hollow cylindrical shape at said second end;
• (b) a rod of substantial length having attached at one end thereof a plug having its outer configuration and size appropriate to fit snugly against the interior surface of the closed end of said cap, except that said plug has a cut-away section which is capable of being positioned at said opening and is also capable of being rotated to a position away from said opening, and when positioned at said opening in said cap, will allow free fluid flow between said cut-away section and the exterior of said cap;
• (c) a sleeve of substantial length but shorter than the length of said rod, said sleeve having an inside diameter greater than the outer diameter of said plug and adapted to allow free passage of said plug along the length of said sleeve, said sleeve being attached at one end thereof to the said open end of said cap and in axial alignment therewith;
• whereby the device will admit the flow of fluid into the interior of said cap when the cut-away section of said plug is positioned at said cap opening and when the plug is rotated on its linear axis and whereby fluid communication between said opening and said cavity is cut off by rotating the plug to position the cut-away section away from said cap opening so that the fluid will be retained within the cavity.