Layered stent
First Claim
1. A stent system for the splitting and holding open of a body cavity, the stent system having a stent comprising:
- a tube made from an elastic material;
a tubular weave seating firmly on an outer surface of said tube, said weave having a filament with a diameter and;
a coating covering said tube and said weave to hold said weave on said tube, said coating having a thickness less than said filament diameter, said coating consisting essentially of a self-solidifying fluid into which said tube and said weave are dipped, whereby the stent has a structured outer surface defined by said weave, and further comprising an application device for introducing the stent into a body cavity, said application device comprising a capture and a displacement device, an application bushing, and a conical plug.
3 Assignments
0 Petitions
Accused Products
Abstract
The invention concerns a stent 1 for the bracing and/or holding-open of a body cavity having a tube 2 made from an elastic material, a tubular weave 3 comprising filaments 5 seating in close adjacency to the outer surface of the tube 2 as well as a coating 4 applied to the outer surface of the tube 2 which attaches the weave 3 to the outer surface of the tube 2. The coating 4 is adapted to have a structured outer surface dominated by the weave 3. The stent 1 in accordance with the invention can be produced economically with adjustable restoring forces and facilitates a secure placing within the body cavity. Means for preventing drifting within the body cavity can also be introduced onto outer surface of the stent.
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Citations
23 Claims
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1. A stent system for the splitting and holding open of a body cavity, the stent system having a stent comprising:
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a tube made from an elastic material; a tubular weave seating firmly on an outer surface of said tube, said weave having a filament with a diameter and; a coating covering said tube and said weave to hold said weave on said tube, said coating having a thickness less than said filament diameter, said coating consisting essentially of a self-solidifying fluid into which said tube and said weave are dipped, whereby the stent has a structured outer surface defined by said weave, and further comprising an application device for introducing the stent into a body cavity, said application device comprising a capture and a displacement device, an application bushing, and a conical plug. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 16, 19)
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13. A stent system for the splitting and holding open of a body cavity, the stent system having a stent comprising:
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a tube made from an elastic material; a tubular weave seating firmly on an outer surface of said tube, said weave having a filament with a diameter and; a coating covering said tube and said weave to hold said weave on said tube, said coating having a thickness less than said filament diameter, said coating consisting essentially of a self-solidifying fluid into which said tube and said weave are dipped, whereby the stent has a structured outer surface defined by said weave, wherein said filament has a fixed end, and wherein said filament comprises a plurality of threads having neighboring ends pair-wises connected to each other, and further comprising a covering element for pair-wise connecting said neighboring ends. - View Dependent Claims (14, 15)
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17. A stent system for the splitting and holding open of a body cavity, the stent system having a stent comprising:
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a tube made from an elastic material; a tubular weave seating firmly on an outer surface of said tube, said weave having a filament with a diameter and; a coating covering said tube and said weave to hold said weave on said tube, said coating having a thickness less than said filament diameter, said coating consisting essentially of a self-solidifying fluid into which said tube and said weave are dipped, whereby the stent has a structured outer surface defined by said weave, and further comprising raised portions protruding beyond said structured outer surface. - View Dependent Claims (18)
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20. A stent system for the splitting and holding open of a body cavity, the stent system having a stent comprising:
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a tube made from an elastic material; a tubular weave seating firmly on an outer surface of said tube, said weave having a filament with a diameter and; a coating covering said tube and said weave to hold said weave on said tube, said coating having a thickness less than said filament diameter, said coating consisting essentially of a self-solidifying fluid into which said tube and said weave are dipped, whereby the stent has a structured outer surface defined by said weave, wherein said tube has a fold-over covering an end of said filament.
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21. A stent system for the splitting and holding open of a body cavity, the stent system having a stent comprising:
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a tube made from an elastic material; a tubular weave seating firmly on an outer surface of said tube, said weave having a filament with a diameter and; a coating covering said tube and said weave to hold said weave on said tube, said coating having a thickness less than said filament diameter, said coating consisting essentially of a self-solidifying fluid into which said tube and said weave are dipped, whereby the stent has a structured outer surface defined by said weave, wherein said filament comprises a plurality of threads having at least one of differing separations with respect to each other and differing diameters.
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22. A stent system for the splitting and holding open of a body cavity, the stent system having a stent comprising:
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a tube made from an elastic material; a tubular weave seating firmly on an outer surface of said tube, said weave having a filament with a diameter and; a coating covering said tube and said weave to hold said weave on said tube, said coating having a thickness less than said filament diameter, said coating consisting essentially of a self-solidifying fluid into which said tube and said weave are dipped, whereby the stent has a structured outer surface defined by said weave, wherein said weave has shapes differing in at least one of an axial and a radial direction.
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23. A method for introduction of a stent system into a body cavity, the method comprising the steps of:
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a) pulling the stent into a lumen of an application bushing using a conically widening end of a capture and displacement device; b) fixing the stent within said lumen of said application bushing using a conical plug; c) separating said capture and displacement device from the stent; d) pulling said capture and displacement device out of said lumen of said application bushing; e) separating said conical plug from said application bushing; f) turning around said capture and displacement device; g) inserting said capture and displacement device once more into said lumen of said application bushing; h) displacing optical means through a lumen of said capture and displacement device; i) introducing said application bushing into the body cavity; j) positioning the stent out of said application bushing and into the body cavity using said capture and displacement device.
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Specification