Lubricious filter
First Claim
Patent Images
1. A method of forming an intravascular filter comprising a polymeric base layer and a hydrophilic layer disposed on the base layer, the method comprising steps of:
- providing a filter forming mandrel;
spraying the filter forming mandrel with a hydrophilic polymer to form the hydrophilic layer; and
spraying the hydrophilic layer with a base polymer to form the base layer.
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Abstract
Intravascular filters can include a filter membrane having a hydrophilic polymer coating on the filter membrane. The hydrophilic polymer coating can be on an inner surface, an outer surface or both an inner surface and an outer surface of the filter membrane. Intravascular filters including a hydrophilic polymer coating may be considered as providing increased hemocompatibility, decreased risk of filter-induced thrombosis and reduced sheathing forces.
105 Citations
36 Claims
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1. A method of forming an intravascular filter comprising a polymeric base layer and a hydrophilic layer disposed on the base layer, the method comprising steps of:
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providing a filter forming mandrel;
spraying the filter forming mandrel with a hydrophilic polymer to form the hydrophilic layer; and
spraying the hydrophilic layer with a base polymer to form the base layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of forming an intravascular filter comprising a polymeric base layer and a hydrophilic layer disposed on the base layer, the method comprising steps of:
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providing a filter forming mandrel;
spraying the filter forming mandrel with a base polymer to form the base layer; and
spraying the base layer with a hydrophilic polymer to form the hydrophilic layer. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. An intravascular filter, comprising:
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a filter membrane having an inner surface and an outer surface; and
a hydrophilic polyurethane coating disposed on the filter membrane. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification