MEDICAL LIQUID ASPIRATOR Russian patent published in 1994 - IPC

FIELD: medicine. SUBSTANCE: aspirator has vessel for flushing fluid. The vessel is provided with probe for introducing into hollow organ. Restrictor is mounted onto the organ. Catheter is used for removing contents away from hollow organ. Catheter communicates with receiving vessel and with the duct through elastic chamber and draining tube. The duct is connected with pump. Flux governor made in form of restrictor and pressure transducer connected with converter, are mounted in the duct. The pump is electrically connected with the first input of control and power unit. The second input of the of the latter is connected with unit for forming throw pulse. Cylinder of the unit is communicated with the case through distributor by means of pipe-line. The case encloses elastic chamber. Delay unit, controlled generator and restrictors control unit are introduced into the aspirator. Elastic chamber is made in form of a tube, which has variable thickness to be decreased in sucking-off direction. EFFECT: improved efficiency. 2 dwg