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US 7,125,377 B2Granted
Valve assembly
AssigneeEutech Medical AB
InventorÅse Rinman
Life of this patent
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Abstract
The present invention relates to a valve assembly adapted to be positioned into a urethra in a mammal, including humans, the valve assembly comprising a) a valve holder and b) a valve housing comprising a valve controlling an urine flow from a patient's bladder, the valve assembly being arranged in a sealed manner between the walls of the urethra, said valve holder comprises a cylindrically shaped body to be inserted into the urethra.
Claims31
A valve assembly adapted to be positioned into a urethra in a mammal, including humans, the valve assembly comprising:
- a) a valve holder comprising a substantially cylindrically shaped body to be inserted into the urethra, and
- b) a valve housing comprising a valve controlling an urine flow from a patients bladder, the valve assembly adapted to be arranged in a sealed manner between the walls of the urethra,
- wherein the cylindrical valve holder comprises a shape memory alloy to provide an expandable element adapted to expand after the insertion of said valve holder to increase its diameter at its upper end to provide a frustoconical portion, whereby the increase of the diameter of the cylinder at its upper end is more than 15% and whereby the increase of the diameter of said cylindrical valve holder is temperature dependent;
- and
- wherein the valve holder comprises at least two frustoconically shaped portions at one end of the cylinder corresponding to said frustoconical portion.
2 more elements
Dependencies are inferred from the claim text.