Prosthesis intended for the treatment of a natural lumen or tract, in particular an endo-urethral prosthesis
First Claim
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1. A prosthesis capable of being inserted in a biological lumen or tract, comprising:
- first and second elements that are locatable on respective distal and proximal sides of a sphincter surrounding the lumen or tract, wherein the first element is sufficiently flexible to at least partially conform to the lumen or tract and sufficiently rigid to maintain a passage through the lumen or tract, and wherein the second element comprises a surface that abuts the proximal side of the sphincter; and
a connecting element interconnecting the first element and the second element, wherein the connecting element comprises a middle portion locatable in the sphincter that is deformable in response to pressure by the sphincter to allow the sphincter to close naturally and thereby close the lumen or tract to natural fluid flows.
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Abstract
A prosthesis intended for the treatment of a natural lumen or tract of a human or animal body through which a flow is effected on either side of a sphincter is disclosed. The prosthesis comprises at least one tubular element, in particular of cylindrical shape which is sufficiently flexible to conform to the natural lumen, but sufficiently rigid to maintain an artificial passage in the lumen, and is intended to be placed in the natural lumen. The wall of the tubular element comprises a relatively smooth and soft biocompatible material, such as silicone rubber, at least in its outer part.
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Citations
22 Claims
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1. A prosthesis capable of being inserted in a biological lumen or tract, comprising:
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first and second elements that are locatable on respective distal and proximal sides of a sphincter surrounding the lumen or tract, wherein the first element is sufficiently flexible to at least partially conform to the lumen or tract and sufficiently rigid to maintain a passage through the lumen or tract, and wherein the second element comprises a surface that abuts the proximal side of the sphincter; and
a connecting element interconnecting the first element and the second element, wherein the connecting element comprises a middle portion locatable in the sphincter that is deformable in response to pressure by the sphincter to allow the sphincter to close naturally and thereby close the lumen or tract to natural fluid flows. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A prosthesis capable of being inserted in a biological lumen or tract, comprising:
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first and second elements that are locatable on either side of a sphincter surrounding the lumen or tract, wherein at least one of said first and second elements is sufficiently flexible to conform to the lumen or tract and sufficiently rigid to maintain a passage through the lumen or tract against a force that tends to obstruct the lumen or tract; and
a connecting element comprising at least one thread, wherein the thread traverses the sphincter and interconnects the first and second elements. - View Dependent Claims (16, 17, 18)
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- 19. A prosthesis for implanting in a lumen, comprising a first tubular element, a second element, and a connecting element, said connecting element comprising a plurality of threads, wherein the first and second elements are locatable on either side of a sphincter surrounding the lumen and the plurality of threads traverse the sphincter and interconnect said first and second elements.
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21. An intraurethral device, comprising:
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(i) a first tubular element comprising a flexible, biocompatible material, and comprising a proximal portion and a distal portion, and a central portion with a substantially constant outer diameter, wherein said proximal portion comprises an end opening to allow passage of fluid and said distal portion comprises an opening to allow urine to enter said first tubular element from the bladder;
(ii) a second element comprising a flexible, biocompatible material, and comprising a proximal end and a distal end, wherein a width dimension along at least a portion of the second element is greater than the outer diameter of the central portion of the first tubular element; and
(iii) a connecting element comprising at least one thread connecting said proximal portion of said first element to said distal end of said second element. - View Dependent Claims (22)
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Specification