FIELD: medicine. SUBSTANCE: to provide for the preset degree of tension of tissues of cardiac valves and large blood vessels, the catheter balloon is made in form of two separate coaxially arranged shells 2 and 3. Internal shell is made of flexible material, e.g., synthetic medical rubber, and the external shell is made of the same material but reinforced with woven cloth. EFFECT: higher efficiency. 2 cl, 2 dwg
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