FIELD: medical engineering. SUBSTANCE: device has working part to be introduced into a cavity, manipulator unit for controlling working part operation, and catheter provided with T-joint member. The working part of the device has central force transfer rod and four symmetrically mounted branch members. The branch members are manufactured from biologically neutral material wire like titanium nickelide possessing superelasticiity properties. The branch members and working part are connected to the manipulator unit to control the branch members and force transfer rod operation both as separate units and as a whole. EFFECT: simplified use in performing operation of gall discharge and drug infusion. 4 cl, 3 dwg
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