Traitement en cours

Veuillez attendre...

Paramétrages

Paramétrages

Aller à Demande

1. WO2020163820 - SHUNT À RIVET ET PROCÉDÉ DE DÉPLOIEMENT

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]

What is claimed is:

1. A method of treating a diseased state of a patient comprising:

identifying two lumens in said patient, the shunting of which is intended to improve the diseased state of said patient;

deploying a shunt device between said two lumens;

securing said shunt device in said two lumens by flaring opposite ends of said shunt device and by foreshortening said shunt device;

wherein said flaring and foreshortening secures said shunt device between said two lumens and shunts said two lumens.

2. A method according to claim 1 , wherein said diseased state is one of the group consisting of: pulmonary hypertension, heart failure, hypertension, kidney failure, volume overload, hypertrophic cardiomyopathy, valve regurgitation, and numerous congenital diseases.

3. A method according to claim 1 , wherein said shunt device comprises a stent-like device.

4. A method according to claim 1 , wherein said flaring and foreshortening is produced by inflating a balloon placed inside said shunt device.

5. A method according to claim 1 wherein said flaring and foreshortening is produced by self-expansion of said shunt device.

6. A method according to claim 1 , wherein the degree of flaring and the degree of foreshortening is determined by a varying size of cells of a stent-like structure of said shunt device.

7. A method according to claim 6, wherein said varying size of cells is comprised of progressively increasing cell size from a middle of said stent-like structure to axially extending ends of said stent-like structure.

8. A method according to claim 1 , wherein said two lumens are separated by a common wall of tissue.

9. A method according to claim 1 , wherein shunt device is covered with a material.

10. A method according to claim 8, wherein said common wall is compressed between said opposite flared walls as a result of said flaring and foreshortening.

1 1 . A method according to claim 1 , wherein a parameter associated with said diseased state is measured prior to deploying said shunt device and after said flaring and foreshortening.

12. A method of deploying a prosthesis in a patient, comprising:

positioning the prosthesis into a biological passage;

radially expanding the prosthesis to cause 1 ) a distal and proximal end of the prosthesis to radially flare relative to a middle of the prosthesis; and 2) to cause the prosthesis to foreshorten in length whereby the distal and proximal ends of the prosthesis engage tissue surrounding the biological passage; wherein the prosthesis creates a shunt passage between a first body lumen and a second body lumen.

13. The method of claim 1 1 , wherein the prosthesis is a laser-cut tubular structure having a plurality of cells that have a larger length near the proximal and distal end of the prosthesis than at the middle of the prosthesis when the prosthesis is in a radially compressed configuration.

14. The method of claim 1 1 , wherein radially expanding the prosthesis further comprises expanding a balloon under the prosthesis; the balloon expanding to an hourglass shape.

15. The method of claim 1 1 , wherein the prosthesis is a shunt having a tubular covering layer disposed along at least part of the length of the prosthesis.

16. The method of claim 1 1 , wherein the prosthesis is a device having a covering layer that substantially blocks an interior passage of the shunt.

17. A prosthesis for treatment of a patient, comprising:

a tubular structure having a radially compressed configuration and a radially expanded configuration; and,

said radially expanded configuration comprising a flared state of distal and proximal ends and a foreshortened length;

said flared state and said foreshortened length being sufficient to secure said tubular structure between tissue of two lumens of a patient.

18. The prosthesis of claim 17, wherein the tubular structure is comprised of a plurality of struts that increase in length towards the distal and proximal ends, away from a middle of the tubular structure.

19. The prosthesis of claim 18, wherein the struts form a plurality of cells and wherein the plurality of cells increase in length towards the distal and proximal ends, away a middle of the tubular structure when the tubular structure is in its radially compressed configuration.

20. The prosthesis of claim 19, wherein the prosthesis has a radially compressed length of about 30 mm, a radially compressed diameter of about 2.2 mm, radially expanded proximal and distal end diameter of about 8 mm, and a radially expanded middle diameter of about 4 mm.