| 摘要 |
FIELD: medical engineering. SUBSTANCE: device has tube, valve and additional casing with cover. The cover has central axial opening for stiletto to be introduced and internal tube having oblique cut on the working end. The working end is arranged at an angle of 45 deg to the tube axis and has adjacent end leaflet valve. The cover, tube and valve are made as a whole from flexible rubber. The central axial cover opening diameter is less than internal tube diameter. EFFECT: wide range of functional applications; easiness of operation. 1 dwg
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