Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
31 words
A luminal stent in which a yarn of continuous bioabsorbable polymer fibers is formed in a non-woven non-knitted state in a shape conforming to peripheral surface of an imaginary tubular member.
Claim 2
Dependent Claim
30 words
A luminal stent in which a yarn of continuous bioabsorbable polymer fibers is formed in a meandering state in a shape conforming to peripheral surface of an imaginary tubular member.
Claim 3
Dependent Claim
54 words
The luminal stent as claimed in claim 1 or 2, characterized in that the bioabsorbable polymer is at least one selected from the group consisting of polylactic acid, polyglycol acid, polyglactin (polyglycol acid -polylactic acid copolymer), polydioxanone, polyglyconate (trimethylene carbonate - glycolide copolymer), and a copolymer of ε-caprolactone with polyglycol acid or polylactic acid.
Claim 4
Dependent Claim
24 words
The luminal stent as claimed in claim 1 or 2, characterized in that the bioabsorbable polymer fibers are circular, non-circular or hollow in cross-section.
Claim 5
Dependent Claim
20 words
The luminal stent as claimed in claim 1 or 2, characterized in that the bioabsorbable polymer fibers present surface irregularities.
Claim 6
Dependent Claim
36 words
The luminal stent as claimed in claim 1 or 2, characterized in that at least one of an agent impermeable to X-rays, a carcinostatic agent and an anti-thrombotic agent is mixed into the bioabsorbable polymer fibers.
Claim 7
Dependent Claim
44 words
The luminal stent as claimed in claim 1 or 2, characterized in that at least one of an agent impermeable to X-rays, a carcinostatic agent, an anti-thrombotic agent and cells of a living body is deposited on the surface of the bioabsorbable polymer fibers.
Claim 8
Independent Claim
41 words
A method for producing a luminal stent comprising guiding a planar mass formed of a yarn of bioabsorbable polymer fibers along peripheral surface of a tubular member for shaping said planar mass substantially into a tubular member presenting a curved surface.
Claim 9
Dependent Claim
37 words
The method for producing the luminal stent as claimed in claim 8, further comprising heat-setting the tubular member having the curved surface for reducing the diameter of the tubular member as compared to the diameter during shaping.
Claim 10
Dependent Claim
39 words
A device for applying a luminal stent comprising a catheter having a balloon-forming portion at a distal end thereof and the luminal stent as claimed in claim 1 or 2, said luminal stent being fitted over said balloon-forming portion.
Claim 11
Dependent Claim
29 words
The device for applying a luminal stent as claimed in claim 10, wherein the luminal stent is coated with a bio-compatible material and thereby affixed to the balloon-forming portion.
Claim 12
Dependent Claim
38 words
The device for applying a luminal stent as claimed in claim 11, characterized in that the bio-compatible material is at least one selected from an in vivo decomposable polymer, a water-soluble polymer, water-soluble protein and fibrin sizing agent.
Claim 13
Dependent Claim
22 words
The device for applying a luminal stent as claimed in claim 11, characterized in that the bio-compatible material is polylactic acid (PLA).