MX9603872A - Urological stent and deployment device therefor. - Google Patents
Urological stent and deployment device therefor.Info
- Publication number
- MX9603872A MX9603872A MX9603872A MX9603872A MX9603872A MX 9603872 A MX9603872 A MX 9603872A MX 9603872 A MX9603872 A MX 9603872A MX 9603872 A MX9603872 A MX 9603872A MX 9603872 A MX9603872 A MX 9603872A
- Authority
- MX
- Mexico
- Prior art keywords
- state
- alloy
- stent
- urethra
- band
- Prior art date
Links
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- Media Introduction/Drainage Providing Device (AREA)
Abstract
A stent adapted for placing in the urethra so as to retain the urethra's diameter above a critical level is provided. The stent comprises: a spiral band made of a two-way shape memory alloy having two memory states consisting of a first state in which said alloy is soft and substantially deformable and a second state in which said alloy has super elastic properties and is substantially non-deformable, the alloy changes from the first state to the second state at a first transition temperature being above physiological body temperature and changes from the second to the first state at a second transition temperature being below physiological body temperature; in said second state consecutive windings of the band are adjacent one another so that they form together essentially a continuous cylindrical tube of a diameter above said critical level; in said first state said band forms a coiled structure having a maximal external diameter so as to allow deployment of stent within the urethra.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IL108832 | 1994-03-03 | ||
PCT/US1995/002742 WO1995023564A1 (en) | 1994-03-03 | 1995-03-02 | Urological stent and deployment device therefor |
Publications (2)
Publication Number | Publication Date |
---|---|
MX9603872A true MX9603872A (en) | 1997-10-31 |
MXPA96003872A MXPA96003872A (en) | 1998-07-03 |
Family
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG | Grant or registration | ||
MM | Annulment or lapse due to non-payment of fees |