LAYERED MEDICAL APPLIANCES AND METHODS

摘要

Medical appliances may be formed of multilayered constructs. The layers of the constructs may be configured with various physical properties or characteristics. The disposition and arrangement of each layer may be configured to create an overall construct with a combination of the individual properties of the layers. Constructs may be used to create vascular prostheses or other medical devices.

主权项

1. A multilayered vascular prosthesis, comprising:
a serially deposited fiber layer disposed on a luminal surface of the prosthesis; a polytetrafluoroethylene (PTFE) layer coupled to the serially deposited fiber layer, the PTFE layer providing at least 80% of the tensile strength, measured in at least one direction, of a construct consisting of the serially deposited fiber layer and the PTFE layer.