| 摘要 |
FIELD: medicine. ^ SUBSTANCE: invention refers to medicine. There are described new special cylinders applicable for using in valvuloplasty of stenotic aortic valves, potentially applicable for valvuloplasty of the other cardiac valves. Their entire external surface, or its portion is coated with a medical substance which is released in valve tissue during a short-time contact with the cylinder in the process of dilatation. The medical substance counteracts with the process of restenosis which is almost always observed over a certain period of time. A cylinder shape can be classical cylindrical or hourglass-shaped that promotes target drug delivery to valve tissues. Local drug delivery substantially reduces a probability of restenosis. ^ EFFECT: favourable effect of the procedure on the patient is kept for a long time, while the procedure is transformed from temporarily relieving into a finishing therapeutic procedure. ^ 12 cl, 11 dwg |
