Guidewire with varied lubricity

Details Guidewire with varied lubricity Guidewire with varied lubricity

A - Human Necessities

61

M

A61M 25/00 (2006.01) A61L 29/08 (2006.01) A61M 25/09 (2006.01)

Patent

CA 2615159

Medical devices and methods for manufacturing the same. An example medical device includes a shaft or substrate that is coated with a lubricious coating. The coating includes a plurality of sections that have differing lubricities. At least some of the sections include a hydrophilic polyurethane. A coated section can include an aliphatic polyether polyurethane. The methods for manufacturing the medical devices may include at least in part microdispensing such as inkjet-type printing.

La présente invention concerne des dispositifs médicaux et leurs procédés de fabrication. Dans un exemple, un dispositif médical comprend une tige ou un substrat sur laquelle ou lequel on applique un revêtement lubrifiant. Le revêtement comporte une pluralité de sections à pouvoir lubrifiant différent. Au moins certaines des sections comprennent un polyuréthane hydrophile. Une section recouverte peut comporter un polyuréthane de polyéther aliphatique. Les procédés de fabrication des dispositifs médicaux peuvent consister au moins en partie en une microdistribution, par exemple de type impression à jet d~encre.

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