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US 10,485,898 B2Granted
High strength biomedical materials
AssigneeAccess Vascular, Inc.
InventorsJames F. Biggins, Michael Bassett, Daniel Donahue
Life of this patent
Estimating the term…
Abstract
High strength biomedical materials and processes for making the same are disclosed. Included in the disclosure are nanoporous hydrophilic solids that can be extruded with a high aspect ratio to make high strength medical catheters and other devices with lubricious and biocompatible surfaces.
Claims25
A hydrophilic porous solid tube, comprising:
- a polymeric material formed by physically crosslinking at least one water soluble polymer to form the hydrophilic porous solid tube, wherein the hydrophilic porous solid tube comprises pores that each have a diameter of 1 μm or less,
- wherein the hydrophilic porous solid tube has a solids content of 33% to 90% w/w at equilibrium water content (EWC) and a Young's modulus of 5-100 MPa at EWC, and wherein the hydrophilic porous solid tube is free of covalent crosslinks between the at least one water soluble polymer that forms the hydrophilic porous solid tube.
A catheter comprising
- a hydrophilic porous solid tube formed by physically crosslinking at least one water soluble polymer to form the hydrophilic porous solid tube, wherein the hydrophilic porous solid tube comprises pores that each have a diameter of 1 μm or less,
- wherein the hydrophilic porous solid tube having a solids content of 33% to 90% w/w at equilibrium water content (EWC) and a Young's modulus of 5-100 MPa at EWC wherein the hydrophilic porous solid tube is free of covalent crosslinks between the at least one water soluble polymer that forms the hydrophilic porous solid tube.
Dependencies are inferred from the claim text.