LUMINAL PROSTHESIS AND A GASTROINTESTINAL IMPLANT DEVICE

• US 20140350694A1
• Filed: 12/19/2012
• Published: 11/27/2014
• Est. Priority Date: 12/19/2011
• Status: Active Grant

• Current Assignee: Coloplast A/S
• Original Assignee: Vysera Biomedical Limited
• Inventors: Behan, Niall
• Granted Patent: US 10,195,066 B2
• Time in Patent Office: Days
• US Class Current: 623/23.65
• CPC Class Codes: A61F 2/04 Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts A61F2/18, A61F2/20 take precedence; devices, other than stent-grafts, providing patency to, or preventing collapsing of, tubular structures of the body other than stent-grafts, e.g. stents A61F2/82; instruments specially adapted for placement or removal of stents or stent-grafts A61F2/95
• CPC Class Codes: A61F 2/966 with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
• CPC Class Codes: A61F 2002/044 Oesophagi or esophagi or gullets
• CPC Class Codes: A61F 2002/045 Stomach, intestines
• CPC Class Codes: A61F 2002/9511 the retaining means being filaments or wires
• CPC Class Codes: A61F 2002/9528 for retrieval of stents
• CPC Class Codes: A61F 2220/0033 made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit
• CPC Class Codes: A61F 2220/0075 sutured, ligatured or stitched, retained or tied with a rope, string, thread, wire or cable
• CPC Class Codes: A61F 2230/001 Figure-8-shaped, e.g. hourglass-shaped
• CPC Class Codes: A61F 5/0079 Pyloric or esophageal obstructions

Abstract

An inexpensive small-sized screen printing machine having low redundancy and high production efficiency and applicable to a dual conveying-type component mounting machine. A pair of substrate supporting tables juxtaposed in a specific direction is provided. Screen printing is alternately performed by a single print executing section in a common area which can be shared by the two substrate supporting tables. In doing so, when one substrate supporting table located at a print position among the pair of substrate supporting tables starts exiting the print position, the other substrate supporting table starts entry to the print position.

Claims

1. A luminal prosthesis comprising:

a first part which is adapted to be retained in a lumen; and

a second part which is connected to the first part such that a force applied to the second part is at least partially isolated from the first part.

2. A prosthesis as claimed in claim 1 wherein the second part is adapted for mounting of a device such as a valve.

3. A prosthesis as claimed in claim 1 comprising a connector between the first part and the second part.

4. A prosthesis as claimed in claim 3 wherein the connector comprises at least one tether.

5. A prosthesis as claimed in claim 3 wherein the connector comprises at least one strut.

6. A prosthesis as claimed in claim 3 wherein the connector comprises at least one wire.

7. A prosthesis as claimed in claim 1 wherein the first part and the second part are formed from a single precursor.

8. A prosthesis as claimed in claim 7 wherein the precursor comprises one continuous stent which is folded to form the first part and the second part.

9. A prosthesis as claimed in claim 1 wherein the second part is radially inward of the first part.

10. A prosthesis as claimed in claim 1 wherein the first part comprises a bulbous region.

11. A prosthesis as claimed in claim 1 wherein the second part comprises a scaffold-receiving region.

12. A prosthesis as claimed in claim 1 wherein the prosthesis comprises a proximal flare.

13. A prosthesis as claimed in claim 12 wherein the prosthesis comprises a transition region between the bulbous region and the proximal flare.

14. A prosthesis as claimed in claim 1 wherein the prosthesis comprises a bulbous region, a proximal flare and a scaffold receiving region.

15. A prosthesis as claimed in claim 14 wherein the proximal flare is of open mesh construction.

16. A prosthesis as claimed in claim 14 wherein the proximal flare is adapted to resist axial movement of the prosthesis.

17. A prosthesis as claimed in claim 14 wherein the proximal flare is at least partially coated.

18. A prosthesis as claimed in claim 17 wherein the proximal flare has a peripheral region which is coated.

19. A prosthesis as claimed in claim 14 wherein the bulbous region is partially coated.

20. A prosthesis as claimed in claim 14 wherein the scaffold receiving region is stiff relative to the bulbous region.

21. A prosthesis as claimed in claim 14 wherein the prosthesis comprises a transition region between the proximal flare and the bulbous region.

22. A prosthesis as claimed in claim 21 wherein the transition region is of open mesh soft construction.

23. A prosthesis as claimed in claim 1 which is of braided mesh construction.

29. A prosthesis as claimed in claim 1 having a reinforcement to facilitate radial compression during loading and to limit radial expansion.

30. A prosthesis as claimed in claim 29 wherein the reinforcement extends around at least part of the circumference of the stent.

31. A prosthesis as claimed in claim 30 wherein the reinforcement comprises at least one loop.

32. A prosthesis as claimed in claim 29 wherein the reinforcement is non-distensible.

33. A prosthesis as claimed in claim 29 wherein the reinforcement is of flexible material.

34. A prosthesis as claimed in claim 29 wherein the reinforcement is of a polymeric or metallic thread.

35. A prosthesis as claimed in claim 29 wherein the reinforcement is of a material selected from one or more of the group comprising monofilament or braided polypropylene suture or a stainless steel wire.

44. A gastrointestinal implant device comprising a prosthesis as claimed in claim 1.

45. A gastrointestinal implant device comprising:

a sleeve for extending into the duodenum;

an artificial valve for placement at the pylorus to control flow from the stomach into the duodenal sleeve; and

a support structure for the valve, the support structure comprising a scaffold to which the valve is mounted and a luminal prosthesis as claimed in claim 1.

24. A luminal prosthesis comprising an outer region and an inner region connected to the outer region, the inner region being adapted for mounting of a device such as a valve.

25. A prosthesis as claimed in claim 24 wherein the inner region is connected to the outer region by a connecting means such as struts and/or wires.

26. A prosthesis as claimed in claim 24 wherein the inner region is formed by an extension of the outer region.

27. A prosthesis as claimed in claim 26 wherein the inner region and the outer region are formed by one continuous stent folded to form inner and outer regions.

28. A prosthesis as claimed in claim 24 wherein the luminal prosthesis comprises a proximal flare, a bulbous region, and a scaffold receiving region.

36. A luminal self expanding prosthesis having a reinforcement to facilitate radial compression during loading and to limit radial expression.

37. A prosthesis as claimed in claim 36 wherein the reinforcement extends around at least part of the circumference of the stent.

38. A prosthesis as claimed in claim 37 wherein the reinforcement comprises at least one loop.

39. A prosthesis as claimed in claim 36 wherein the reinforcement is non-distensible.

40. A prosthesis as claimed in claim 36 wherein the reinforcement is of a flexible material.

41. A prosthesis as claimed in claim 36 wherein the reinforcement is of a polymeric or metallic thread.

42. A prosthesis as claimed in claim 36 wherein the reinforcement is of a material selected from one or more of the group comprising monofilament or braided polypropylene suture or a stainless steel wire.

43. (canceled)