CATHETER Russian patent published in 1994 - IPC

FIELD: medicine. SUBSTANCE: catheter has an elastic tube a working end of which is rigidly coupled with a tensioning thread movably passed through a tube wall in a working portion from outside into the channel and in a non-working portion from the channel outside the tube. The catheter is characterized in that the tube working portion is capable of bending. To achieve this in the region between fixture point of the thread to the tube working end and entry point into the tube channel in its wall from the side opposite to thread location there is an opening in the form of at least one incomplete cross-section of the tube disposed at an angle to its axis, the opposite end surfaces if obtained sections being capable of contacting and separating. The catheter can comprise at least one auxiliary tensioning thread and at least one auxiliary incomplete cross-section of the tube corresponding to it located oppositely. The main and auxiliary threads don't coincide and are located for example on opposite sides of the tube. The main and auxiliary incomplete cross-sections being disposed at different distances from the tube end. EFFECT: enhanced efficiency due to reduced possibility of obturation of channel by the content of a cavity being drained. 10 cl, 30 dwg