Soft crowns
AssigneeCook Medical Technologies LLC
InventorMichael Ryan
Life of this patent
Estimating the term…
Abstract
Soft crowns are provided for use in a medical device. Soft crowns may reduce the incidence of tissue perforations as a medical device engages a luminal wall. In certain embodiments, a soft crown may include a first strut and a second strut interconnected by an end portion. The end portion may include a third strut and a fourth strut that intersect to form a distal end of the soft crown. The first strut and the second strut may intersect other struts in the medical device to attach the crown thereto. The soft crown may bend or pivot about a plane defined by the intersections of the first strut and the second strut to the medical device.
Claims24
A crown of an implantable medical device having a central longitudinal axis, the crown comprising:
- a first strut having a first strut proximal end and a first strut distal end;
- a second strut having a second strut proximal end and a second strut distal end;
- and
- an end portion having a first proximal end, a second proximal end, and a distal end,
- wherein the first strut distal end intersects the first proximal end, wherein the second strut distal end intersects the second proximal end,
- wherein the first strut proximal end and the second strut proximal end define a plane oriented perpendicular to the central longitudinal axis, wherein the crown can bend or pivot about the plane independent of adjacent crowns.
A braided stent having a braided portion integral with a non-braided portion, the non-braided portion comprising a first strut and a second strut, wherein the first strut and the second strut intersect to form an apex, wherein the first strut is separated from the braided portion by a third strut interconnecting the first strut to the braided portion, and wherein the second strut is separated from the braided portion by a fourth strut interconnecting the second strut to the braided portion.
An expandable stent for implantation in a body lumen comprising a circumferential row of cells located at an end of the stent, each cell comprising:
- a proximal end and a distal end;
- a first strut and a second strut, wherein the first and second struts intersect to form the distal end;
- a third strut that intersects the first strut and extends proximally therefrom;
- a fourth strut that intersects the second strut and extends proximally therefrom;
- a fifth strut that crosses over the third strut;
- a sixth strut that crosses under the fourth strut, wherein the fifth strut and the sixth strut cross each other to form the proximal end, and wherein the cell may bend or pivot about a plane defined by the points where the fifth strut crosses over the third strut and the sixth strut crosses under the fourth strut.
Dependencies are inferred from the claim text.