Protective coatings for medical devices
View Patent ↗This invention relates to a method of providing a coating on a medical device, especially a dilatation balloon, which improves the durability of the balloon.
1. A medical balloon insertable in the body, said medical device having a substantially uniform noncontinuous protective surface coating, the medical balloon is formed from a first polymer layer, the first polymer layer is exposed where the coating is noncontinuous.
2. The dilatation balloon of claim 1 wherein the first polymer layer is a thermoplastic.
3. The dilatation balloon of claim 2 wherein said coating is applied in the form of a waffle pattern, stripe pattern or a pattern having circular perforations.
4. The medical device of claim 1 wherein said coating is applied in a waffle pattern, stripe pattern or a pattern having circular perforations.
5. A dilatation balloon having improved durability formed from a thermoplastic polymer, said balloon having a non-continuous protective coating, the balloon formed from a first polymer layer, wherein the first polymer layer is exposed where the protective coating is non-continuous.
6. The dilatation balloon of claim 5 wherein said balloon is formed from a polymer selected from the group consisting of polyethylene terephthalate, high density polyethylene, polyamides, polyether block amides, polycarbonates, stiff polyurethanes, and mixtures thereof.
7. The dilatation balloon of claim 5 wherein said coating comprises a polymeric material selected from the group consisting of thermoplastic polymeric and thermosetting polymeric materials.
8. The dilatation balloon of claim 5 wherein said coating comprises a polyurethane.
9. The dilatation balloon of claim 5 wherein said noncontinuous coating is selected from the group consisting of a waffle pattern, a stripe pattern and a pattern having circular perforations.
10. The dilatation balloon of claim 5 wherein said balloon is formed from a noncompliant material.
11. A medical device insertable in the body having a protective coating on a surface thereof, said coating being applied to said medical device in a substantially uniform discontinuous pattern, the medical device formed from a first polymer layer, the first polymer layer is exposed by the substantially uniform discontinuous pattern of the protective coating.
12. The medical device of claim 11 wherein said coating comprises a thermoplastic polymer, thermosetting polymer or mixture thereof.
13. The medical device of claim 11 wherein said medical device is a dilatation balloon.
14. The medical device of claim 13 wherein said coating is applied in the form of a waffle pattern, stripe pattern or a pattern having circular perforations.