Prosthesis for treating vascular bifurcations
First Claim
Patent Images
1. A prosthesis for placement at an ostium opening from a main body lumen to a branch body lumen, the prosthesis comprising:
- a generally tubular distal portion comprising a radially expansible support having a plurality of proximal apices, the support configured to be deployed in at least a portion of the branch body lumen;
a plurality of fronds extending proximally from an end of the support between a distal end attached to proximal apices of the support and a proximal end, each frond having a first section with four side-by-side filaments and a second section proximal of the first section having two side-by-side filaments, the four side-by-side filaments being attached to three adjacent proximal apices of the support, the fronds configured to be deformably deployed in at least a portion of the main body lumen and to apply less radial force to adjacent tissue than the expanded support applies in the branch body lumen; and
a circumferential link comprising an undulating configuration comprising a plurality of apices, the circumferential link connecting the proximal ends of the fronds, wherein the proximal end of each frond is connected to a single apex of the circumferential link.
1 Assignment
0 Petitions
Accused Products
Abstract
A stepped balloon catheter prosthesis deployment system is disclosed for placement of a prosthesis across an Os opening from a main body lumen to a branch body lumen. The prosthesis comprises a radially expansible support at one end, a circumferentially extending link at the other end and at least one frond extending axially therebetween. The prosthesis is configured to be deployed from a stepped diameter balloon with the support in the branch body lumen, with the circumferentially extending link in the main lumen and the frond extendable across the Os.
-
Citations
29 Claims
-
1. A prosthesis for placement at an ostium opening from a main body lumen to a branch body lumen, the prosthesis comprising:
-
a generally tubular distal portion comprising a radially expansible support having a plurality of proximal apices, the support configured to be deployed in at least a portion of the branch body lumen; a plurality of fronds extending proximally from an end of the support between a distal end attached to proximal apices of the support and a proximal end, each frond having a first section with four side-by-side filaments and a second section proximal of the first section having two side-by-side filaments, the four side-by-side filaments being attached to three adjacent proximal apices of the support, the fronds configured to be deformably deployed in at least a portion of the main body lumen and to apply less radial force to adjacent tissue than the expanded support applies in the branch body lumen; and a circumferential link comprising an undulating configuration comprising a plurality of apices, the circumferential link connecting the proximal ends of the fronds, wherein the proximal end of each frond is connected to a single apex of the circumferential link. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
-
-
23. A prosthesis for placement at an ostium opening from a main body lumen to a branch body lumen, the prosthesis comprising:
-
a generally tubular distal portion comprising a radially expansible support having a plurality of proximal apices, the support configured to be deployed in at least a portion of the branch body lumen; a plurality of fronds extending proximally from an end of the support between a distal end attached to proximal apices on the support and a proximal end, each frond having a distal section having four side-by-side filaments and a proximal section having two side-by-side filaments, each of the four side-by-side filaments being directly coupled with a proximal apex of the support, the fronds configured to be deformably deployed in at least a portion of the main body lumen and to apply less radial force to adjacent tissue than the expanded support applies in the branch body lumen; and a circumferential link connecting the proximal ends of the fronds, each frond coupled with the circumferential link at a single location. - View Dependent Claims (24)
-
-
25. A prosthesis for placement at an ostium opening from a main body lumen to a branch body lumen, the prosthesis comprising:
-
a generally tubular distal portion comprising a radially expansible support having a plurality of proximal apices, the support configured to be deployed in at least a portion of the branch body lumen, the radially expansible support having a branch support wall pattern configured to provide scaffolding for the branch body lumen; a plurality of fronds extending proximally from an end of the support and having a first section, a second section located proximally of the first section, the first section having a first frond wall pattern different from the branch support wall pattern, the first frond wall pattern configured to traverse the ostium opening between the branch body lumen and the main body lumen and to scaffold the ostium opening, the second section having a second frond wall pattern different from the branch support wall pattern and different from the first frond wall pattern, the second frond wall pattern configured to provide for passage of another stent therethrough, at least one of the fronds having a first elongate filament extending within the second section distally to the first section, the first section of the at least one frond having a second elongate filament and a third elongate filament, the second and third elongate filaments being coupled at first ends with a distal end of the first elongate filament and being coupled at second ends thereof with proximal peaks of the support, providing a greater density of filaments in the distal section than in the proximal section of the at least one frond; and a circumferential link connecting the proximal ends of the fronds. - View Dependent Claims (26, 27, 28, 29)
-
Specification