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US 8,007,541 B2Granted
Suction stent
AssigneeMNET GmbH Medizinische Datensysteme
InventorsStefan Benz, Frank Pfeffer
Life of this patent
Estimating the term…
Abstract
The present invention relates to a stent for introduction into a hollow organ, in particular the gastrointestinal tract, of a human or animal patient, which brings about vacuum sealing of leaks, such as anastomosis insufficiencies, in the hollow organ.
Claims19
A stent for introduction into a hollow organ of the human or animal body comprising:
- a radially expandable tubular hollow body (1) having a lumen and a diameter that increases at one or both end region(s) of the hollow body, a porous shapeable material (3) radially sheathing the hollow body (1) at least in certain regions, wherein the thickness (T) of the material (3) decreases at the end region(s) of the hollow body as the diameter of the hollow body (1) increases in the end region(s), and a drainage means (4), wherein the drainage means is introduced into the porous shapeable material (3) and configured to apply suction or a sub-normal pressure or a vacuum, wherein the lumen of the hollow body (1) is air- and water-tight with respect to the material (3).
A stent for introduction into a hollow organ of the human or animal body comprising:
- a radially expandable tubular hollow body having a lumen and a diameter that increases at one or both end region(s) which, when expanded, is open in the longitudinal direction, a porous shapeable material (3) which radially sheaths the hollow body at least in certain regions wherein the thickness (T) of the material (3) decreases at the end region(s) of the hollow body as the diameter of the hollow body (1) increases in the end region(s), and a drainage means, wherein the drainage means is introduced into the material and which is configured to apply a sub-normal pressure or vacuum in the material, wherein the lumen of the hollow body is sealed so as to be air- and water-tight with respect to the material.
A method of using a stent for sealing a leak in a hollow organ of the human or animal body, the stent comprising:
- a radially expandable tubular hollow body having a lumen and a diameter that increases at one or both end region(s);
- a porous shapeable material which radially sheaths the hollow body at least in certain regions wherein the thickness (T) of the material (3) decreases at the end region(s) of the hollow body as the diameter of the hollow body (1) increases in the end region(s);
- and a drainage means, wherein the drainage means is introduced into the porous shapeable material and configured to apply a sub-normal pressure or a suction;
- the method comprising the steps:
- (a) introducing the stent into the hollow organ so the leak of the hollow organ is located at the longitudinal side of the stent, (b) expanding the stent to its predetermined size, and (c) applying a subnormal pressure or a suction to the drainage means of the stent.
2 more elements
Dependencies are inferred from the claim text.