Coated medical devices and methods of making same
AssigneePuricore, Inc.
InventorWalid Abi Aoun
Life of this patent
Estimating the term…
Abstract
Methods of protecting an insertable medical device from chemical degradation are provided. Methods include coating the insertable medical device with an acrylic layer and then coating the acrylic layer with an acrylic-grafted fluoropolymer. Medical devices coated with oxidation-resistant coatings are also provided.
Claims19
A coating for an insertable medical device comprising:
- an acrylic layer;
- an acrylic-grafted fluoropolymeric layer disposed on the acrylic layer, the fluoropolymer layer having acrylic groups grafted therein, wherein the coating substantially protects the insertable medical device from degradation by a sterilizing solution and substantially maintains the flexibility of the insertable medical device.
A method of coating an insertable medical device comprising:
- providing an insertable medical device comprising a body;
- applying an acrylic layer to the body;
- applying to the acrylic layer an acrylic-grafted fluoropolymeric layer comprising a fluoropolymer having acrylic groups grafted thereon, wherein the flexibility of the insertable medical device is substantially unaltered and the medical device is substantially protected from degradation by an oxidizing solution.
A method of coating an insertable medical device comprising:
- providing an insertable medical device comprising a body;
- applying an acrylic layer to the body;
- applying to the acrylic layer an acrylic-grafted fluoropolymeric layer comprising a fluoropolymer having acrylic groups grafted thereon, the fluoropolymer having a melt flow index in the range of about 1 grams/10 minutes to about 5 grams/10 minutes measured at 230° C. with a 10 kilogram weight, the acrylic groups present in an amount between about 3 to 11 wt % of the total weight of the fluoropolymer.
A method of coating an insertable medical device comprising:
- providing an insertable medical device comprising a body;
- applying an acrylic layer to the body;
- applying to the acrylic layer an acrylic-grafted fluoropolymeric layer comprising a fluoropolymer having acrylic groups grafted thereon, the fluoropolymer having a melt flow index in the range of about 20 grams/10 minutes to about 30 grams/10 minutes measured at 230° C. with a 5 kilogram weight, the acrylic groups present in an amount between about 3 to 11 wt % of the total weight of the fluoropolymer.
A method of coating an insertable medical device comprising:
- providing an insertable medical device comprising a body;
- applying an acrylic layer to the body;
- applying to the acrylic layer an acrylic-grafted fluoropolymer layer comprising a fluoropolymer having acrylic groups grafted thereon, the fluoropolymer having a melt flow index in the range of about 2 grams/10 minutes to about 10 grams/10 minutes measured at 230° C. with a 2.16 kilogram weight, the acrylic groups present in an amount between about 3 to 11 wt % of the total weight of the fluoropolymer.
A method of coating an insertable medical device comprising:
- providing an insertable medical device comprising a body;
- applying an acrylic layer to the body;
- grafting acrylic groups with a graft weight between 3% and 11% onto a fluoroelastomer with a melt flow index, measured at 230° C., of about 1.3 grams/10 minutes with at 10 kilogram weight;
- about 24 grams/10 minutes with a 5 kilogram weight;
- or about 8 grams/10 minutes with a 2.16 kilogram weight;
- and
- applying the acrylic-grafted fluoroelastomer onto the body.
A medical device comprising:
- a body;
- and
- a coating disposed on the body, the coating comprising an acrylic layer and
- an acrylic-grafted fluoropolymer layer disposed on the acrylic layer, wherein the body is substantially protected from degradation by a sterilizing solution.
Dependencies are inferred from the claim text.