EXPENDABLE CATHETER Russian patent published in 1994 - IPC

FIELD: medical engineering. SUBSTANCE: expendable catheter incorporates rigid body 1 which houses rigid cylindrical insert 2 with flanges 3 on one side and coniform tip 4 on the other one. Fitted on cylindrical insert is tube 5 made of thin elastic material. Diameter and length of tube is selected according to dimensions of cavity to be examined. Upper end of tube 5 is securely fitted (by extension) on wider portion of coniform tip 4. Flange 3 of cylindrical insert 2 has opening to supply straightening-out medium, either compressed air or liquid. EFFECT: broader functional capabilities, no risk of injuring walls of cavity undergoing examination. 3 cl, 1 dwg