Resorbable intra-urethral prosthesis
The device made in a resorbable material intended to be placed in urethra for Treatment of stricture has the shape of a tube ( 1 ), the wall of which has offices ( 2 ).
1. A Device made in a resorbable material intended to be placed in urethra for treatment of stricture,
wherein the resorbable material has the shape of a tube ( 1 ),
wherein
5.0 ≦ Y ≦ 50.0
mm
y ≦ Y
(Y − y) ≦ 2.0
mm
A ≦ 6°
angle
5 ≦ (L/Y) ≦ 15
5 ≦ (y/e Max ) ≦ 20
0.01 ≦ z ≦ 2.0
mm
1 ≦ n ≦ 20
where Y=D+2e; y=d+2e, A the angle of the conus and D the large inner diameter, d the small inner diameter, L the length and e the wall thickness of the device in milimeters; z is the internal diameter of the perforations in mm. of the tube and n the number of orifices per 100 mm 2 .
2. The device according to claim 1 wherein the resorbable tube ( 1 ) is cylindro-conic or frusto-conical.
3. The device according to claim 1 , wherein the resorbable tube ( 1 ) is cylindrical.
4. The device according to claim 1 , wherein the wall of the tube ( 1 ) is perforated by orifices ( 2 ).
5. The device according to claim 4 , wherein the orifices have margins ( 3 ) slightly arisen externally.
6. The device according to claim 1 , wherein the tubular wall thickness (e) is constant excepted at one end where it the tubular wall is sharpened.
7. The device according to claim 1 , wherein the resorbable material is a homopolymers or copolymers with the sequence -[—X1-C(O)—R1-Y1-R2-]-[X2-C(O)—R3-Y2-R4-]- where: C(O) is a >C═O group, X1; X2 are an oxygen atom or a NH group, Y1 (resp. Y2) is an oxygen atom or a NH group or a chemical bond between R1 and R3 (resp. R2 and R4), R1; R2; R3; R4 are linear or branched, saturated or not, bearing heteroatoms or not, carbon skeletons with (0 or 1) to 10 carbon atoms.
8. The device according to claim 7 , wherein the resorbable material is polydioxanone.
9. The device according to claim 7 , wherein the resorbable material is dyed by biocompatible pigment.
10. The device according to claim 7 , wherein the resorbable material is coated by a siliconized solution.
11. The device according to claim 7 , wherein the resorbable material is coated by an antiseptic solution.
12. The device according to claim 7 , wherein the resorbable material is coated by a contrast (echogenic) solution.
13. The device according to claim 7 , wherein the resorbable material is coated by diamond- or pyrolytic carbon.
14. The device according to claim 1 , wherein the resorbable material is collagen of bovine, marine or any other biological origin.
15. The device according to claim 8 , wherein the resorbable material is dyed by biocompatible pigment.
16. The device according to claim 8 , wherein the resorbable material is coated by a siliconized solution.
17. The device according to claim 7 , wherein the resorbable material is coated by an antiseptic solution.
18. The device according to claim 8 , wherein the resorbable material is coated by a contrast (echogenic) solution.
19. The device according to claim 8 , wherein the resorbable material is coated by diamond- or pyrolytic carbon.