Tubular knitted stents
AssigneeEucatech AG
InventorsMichael GIESE, Timo SCHNEIDERHAN
Life of this patent
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Abstract
A tubular knitted stent or stent graft for placement in a lumen or body passage is compressible, thus presenting a compressed outer diameter and a non-compressed outer diameter. The stent or stent graft has knitted loops each having a loop width, wherein the loop width to non-compressed outer diameter ratio is larger than 0.2 for at least one knitted loop.
Claims15
A tubular knitted stent or stent graft for placement in a lumen or body passage, the stent or stent graft being compressible and having a compressed and a non-compressed outer diameter, the stent or stent graft having knitted loops each having a loop width,
- wherein at least one knitted loop is characterized by a loop width to non-compressed outer diameter ratio larger than 0.2.
A method for fabricating a tubular stent or stent graft for placement in a lumen or body passage, the method comprising:
- knitting a tubular stent or stent graft which is compressible and has a compressed and a non-compressed outer diameter, the stent or stent graft having knitted loops each having a loop width,
- wherein the loop width to non-compressed outer diameter ratio is larger than 0.2 for at least one knitted loop;
- crimping the stent or stent graft to a compressed outer diameter smaller than the non-compressed outer diameter.
A knitting head for manufacturing a tubular knitted stent or stent graft for placement in a lumen or body passage, the knitting head comprising a plurality of longitudinally extending needle slots for supporting and guiding multiple knitting needles, needle slots of a subset being arranged closer to one another than to needle slots of another subset, and needle slots of a subset sharing an angular wedge recess.
Dependencies are inferred from the claim text.