Componsite stent
AssigneePhillips Plastics Corporation
InventorsJames Johnson, Anita Tavakley
Life of this patent
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Abstract
A bioremovable composite stent includes bioremovable polymer and bioremovable ceramic flakes generally coupled with adjacent layers of bioremovable polymer so as to make a resilient composite stent configured to move between a contracted configuration to an expanded configuration. In one embodiment, the composite stent may have a helical shape.
Claims26
A composite stent comprising:
- a plurality of layers that include bioremovable polymer;
- and
- a plurality of flakes of bioremovable ceramic material;
- wherein the plurality of layers alternate between having a high concentration of the plurality of flakes and having a low concentration of the plurality of flakes;
- and
- wherein the composite stent is expandable.
A composite stent comprising:
- bioremovable polymer;
- and
- bioremovable ceramic material;
- wherein the composite stent has a helical shape;
- and
- wherein the composite stent is resilient and resilient properties of the stent cause it to move from a contracted configuration to an expanded configuration.
A composite stent comprising a plurality of flakes of bioremovable ceramic material embedded in bioremovable polymer.
A method of making bioremovable composite material comprising:
- coupling a first layer of bioremovable polymer that is substantially free or completely free of bioremovable ceramic material to a second layer of bioremovable polymer that includes bioremovable ceramic material embedded therein.
A method of using a composite stent comprising:
- positioning the composite stent in a bodily lumen, the composite stent including bioremovable polymer and bioremovable ceramic material, the composite stent being in a contracted configuration where the composite stent is coiled in a state of tension;
- and
- releasing the composite stent so that the resilient properties of the composite stent cause the composite stent to expand in the bodily lumen.
Dependencies are inferred from the claim text.