TROCAR Russian patent published in 2003 - IPC

FIELD: medical engineering. SUBSTANCE: device has tube, sealing ring with a valve and additional casing with cover. The cover has central axial opening and has internal tube having oblique cut at 45 deg on the working end. The cover and tube are made as a whole from flexible rubber. The cover is rotatable about the central axis in the casing by means of locking handles. The locking handles are mounted in slots for opening and retaining the leaflet valve in open position. The cover and tube are mounted so that the valve is arranged along the oblique cut of the tube working end and is adjacent thereto. The central axial cover opening diameter is less than internal tube diameter. The sealing ring is positioned inside of the casing between the wall and tube along the perimeter. EFFECT: wide range of functional applications; easiness of operation. 2 cl, 1 dwg