Removable stent and method of production
AssigneeGraftCraft i Goteborg AB
InventorsErney Mattsson, Torbjörn Lundh
Life of this patent
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Abstract
A method and apparatus for a removable porous stent to be placed in tubular structures that is unsuitable for permanent stents. The walls of the stent are freely permeable to allow the blood flow. The stent can be used as a carrier of chemotherapy or radiation to be placed in tubular structures for local treatment of cancer. The stent is formed by at least one continuous thread arranged in interconnected loops and having a reversible bind-off at one end of the tubular body, mechanically securing each loop at said end of the tubular body apart from a single releasable loop. This loop is preferably extended beyond the tubular structure of the stent enabling an initiation of the removal at a distance from the treatment site.
Claims24
A removable stent comprising:
- a porous tubular body formed by at least one continuous thread arranged in interconnected loops and including a reversible bind-off at one end of the tubular body, mechanically securing each loop at said end of the tubular body apart from a single releasable loop,
- wherein the end of said tubular body including said reversible bind-off comprises a wale in which all loops are mechanically secured by said reversible bind-off, and wherein at least one mechanically secured intermediate loop is arranged between said wale and said single releasable loop.
A method for producing a removable stent, the method comprising:
- forming at least one continuous thread into interconnected loops, thereby forming a porous tubular body;
- and
- providing a reversible bind-off at one end of the tubular body, mechanically securing each loop at said end of the tubular body apart from a single releasable loop,
- wherein the end of said tubular body including said reversible bind-off comprises a wale in which all loops are mechanically secured by said reversible bind-off, and wherein at least one mechanically secured intermediate loop is arranged between said wale and said single releasable loop.
Dependencies are inferred from the claim text.