| 摘要 |
The invention provides a protective coating which improves the durability of a medical device, especially a dilatation balloon, and also addresses the problems which can arise if a scratch, abrasion or puncture occurs, in for instance the balloon wall. The coating is discontinuous in nature, thus preventing bubbling or aneurysms in the outer protective coating if the underlying devices, i.e. balloon wall, becomes damaged and allows inflation medium to escape. The discontinuous coating comprises a polymeric material and may preferentially be a "waffle" pattern, a "strip" pattern of a pattern having circular perforations.
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