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US 2013/0085565 A1Published application
Electrospun ptfe coated stent and method of use
AssigneeMerit Medical System, Inc.
InventorsZeke Eller, John William Hall, Robert S. Kellar, Rachel Lynn Simmons, Robert J. Radford, Bart Dolmatch
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Abstract
A stent or other prosthesis may be formed by coating a single continuous wire scaffold with a polymer coating. The polymer coating may consist of layers of electrospun polytetrafluoroethylene (PTFE). Electrospun PTFE of certain porosities may permit endothelial cell growth within the prosthesis.
Claims28
A stent, comprising:
- a scaffolding structure configured to resist radial compression when disposed in a lumen of a patient, and
- a coating disposed on at least a portion of the scaffolding structure, the coating comprising a first layer of electrospun polytetrafluoroethylene (PTFE).
A method of constructing a stent, comprising:
- electrospinning a first tube of PTFE onto a rotating mandrel;
- sintering the first tube;
- applying a scaffolding structure around the first tube;
- applying a fluorinated ethylene proplyene (FEP) layer around the first tube and the scaffolding structure;
- and
- applying a second tube of electrospun PTFE around the FEP layer.
3 more elements
Dependencies are inferred from the claim text.