Stent and method of manufacturing the same
OwnerSeong-Hyeon Kim, Young-Shin Kim +1inventors
InventorsSeong-Hyeon Kim, Young-Shin Kim, Hyun-Joo Kim
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Abstract
The present invention provides a stent that allows a simple surgical operation for affected parts of a lumen in a human body, and particularly reduces a medical side effect by contact or friction between the inside of the lumen and the outside of the stent when the stent is removed from the lumen. The stent includes a cylindrical wire structure having an internal passage and wires that are bent along the internal passage to have peaks and valleys, and a cover film that covers the wire structure. In particular, the cover film covers the wires such that the wires are embedded at the outside of the wire structure and exposed at the inside.
Claims10
A stent comprising:
- a cylindrical wire structure having cylindrically wound wires, each bent in a zigzag pattern to have peaks and valleys;
- and
- a cover film covering the inside and outside of the wire structure,
- wherein the cover film is coated such that the outside of the cover film forms a circumferential surface that is the same as the coating surface on the outside of the wires of the cylindrical wire structure.
A method of manufacturing a stent, comprising:
- forming a cylindrical wire structure with an internal passage by bending wires to have peaks and valleys;
- setting a shaper for coating to cover the outside of the wire structure;
- coating the wire structure with a coating material while the shaper for coating having a hollow space covers the outside of the wire structure;
- and
- forming a cover film by hardening the coating material coated on the wire structure.
Dependencies are inferred from the claim text.