Endovascular stent graft with self-closing perfusion branch
View Patent ↗A prosthesis having a tubular body of a biocompatible graft material having a proximal end, a distal end, a lumen therethrough, and a sidewall. The prosthesis includes at least one perfusion branch extending from the sidewall of the tubular body and having a proximal end, a distal end, and a lumen therethrough, where the lumen of the perfusion branch is in temporary fluid communication with the lumen of the tubular body. The perfusion branch comprises a self-sealing component, that after predetermined period of time precludes fluid flow out of the distal end of the perfusion branch.
1. A prosthesis comprising:
a tubular body of a biocompatible graft material having a proximal end, a distal end, a lumen therethrough, and a sidewall; and
at least one perfusion branch extending from the sidewall of the tubular body having a proximal end, a distal end, and a lumen therethrough, where the lumen of the perfusion branch is in temporary fluid communication with the lumen of the tubular body;
where the perfusion branch comprises a self-sealing component, that after predetermined period of time precludes fluid flow out of the distal end of the perfusion branch.
2. The prosthesis of claim 1 , wherein the self-sealing component comprises a flap element and a biodegradable attachment.
3. The prosthesis of claim 2 , wherein the biodegradable attachment comprises one or more dissolvable sutures, staples, clips, adhesive or the like.
4. The prosthesis of claim 2 , wherein self-sealing component further includes a biasing element.
5. The prosthesis of claim 4 , wherein the biasing element comprises bi-stable properties.
6. The prosthesis of claim 4 , wherein the biasing element comprises one or more rings.
7. The prosthesis of claim 6 , further comprising a ring that holds the biasing element in an open condition.
8. The prosthesis of claim 7 where the ring is pivotally attached to the biasing element.
9. The prosthesis of claim 1 , wherein a first portion of the perfusion branch extends external to the prosthesis and another portion of the perfusion branch is internal to the prosthesis.
10. The prosthesis of claim 1 , wherein the self-sealing component comprises a spring.
11. The prosthesis of claim 1 , wherein the self-sealing component is a stent.
12. A stent-graft comprising:
a tubular body of a biocompatible graft material having a proximal end, a distal end, a lumen therethrough, at least one stent attached to the graft material and a sidewall;
at least one branch extending from the sidewall of the stent graft;
at least one perfusion branch extending from the sidewall of the tubular body having a proximal end, a distal end, and a lumen therethrough, where the lumen of the perfusion branch is in temporary fluid communication with the lumen of the tubular body;
where the perfusion branch comprises a self-sealing component, that after predetermined period of time precludes fluid flow out of the distal end of the perfusion branch.
13. The prosthesis of claim 12 , wherein the self-sealing component comprises a flap element and a biodegradable attachment.
14. The prosthesis of claim 13 , wherein the biodegradable attachment comprises one or more dissolvable sutures, staples, clips, adhesive or the like.
15. The prosthesis of claim 13 , wherein self-sealing component further includes a biasing element.
16. The prosthesis of claim 15 , wherein the biasing element comprises bi-stable properties.
17. The prosthesis of claim 15 , wherein the biasing element comprises one or more rings.
18. The prosthesis of claim 17 , further comprising a ring that holds the biasing element in an open condition.
19. The prosthesis of claim 12 , wherein a first portion of the perfusion branch extends external to the prosthesis and another portion of the perfusion branch is internal to the prosthesis.
20. The prosthesis of claim 12 , wherein the self-sealing component comprises a spring.