INTRAVASCULAR STENT

• US 20160317333A1
• Filed: 07/13/2016
• Published: 11/03/2016
• Est. Priority Date: 05/03/2000
• Status: Abandoned Application

• Current Assignee: Abbott Cardiovascular Systems Incorporated (Abbott Laboratories)
• Original Assignee: Abbott Cardiovascular Systems Incorporated (Abbott Laboratories)
• Inventors: Cheng, E. Tina, Ainsworth, Stephen D., Jacobs, James M.
• Application Number:
  US15/209,348
• Publication Number:
  US 20160317333A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61F 2/82 Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents stent-grafts for tubular structures of the body other than blood vessels A61F2/04; stent-grafts for blood vessels A61F2/07; instruments specially adapted for placement or removal of stents or stent-grafts A61F2/95; for closing wounds, or holding wounds closed A61B17/04 - A61B17/115; dilators A61M29/00
• CPC Class Codes: A61F 2/844 folded prior to deployment
• CPC Class Codes: A61F 2/915 with bands having a meander structure, adjacent bands being connected to each other
• CPC Class Codes: A61F 2002/91516 the meander having a change in frequency along the band
• CPC Class Codes: A61F 2002/91533 characterised by the phase between adjacent bands
• CPC Class Codes: A61F 2002/91575 connected peak to trough
• CPC Class Codes: A61F 2002/91583 by a bridge, whereby at least one of its ends is connected along the length of a strut between two consecutive apices within a band
• CPC Class Codes: A61F 2210/0014 using shape memory or superelastic materials, e.g. nitinol
• CPC Class Codes: A61F 2230/0013 Horseshoe-shaped, e.g. crescent-shaped, C-shaped, U-shaped
• CPC Class Codes: A61F 2230/0054 V-shaped
• CPC Class Codes: A61F 2250/0036 differing in thickness
• CPC Class Codes: A61F 2310/00023 Titanium or titanium-based alloys, e.g. Ti-Ni alloys

Abstract

The invention is directed to an expandable stent for implantating in a body lumen, such as a coronary artery, peripheral artery, or other body lumen. The invention provides for a an intravascular stent having a plurality of cylindrical rings connected by undulating links. The stent has a high degree of flexibility in the longitudinal direction, yet has adequate vessel wall coverage and radial strength sufficient to hold open an artery or other body lumen.

Claims

1. -76. (canceled)

77. A flexible intravascular stent for use in a body lumen, comprising:

a plurality of cylindrical rings including a distal end ring, a proximal end ring, and a plurality of body rings therebetween, the plurality of cylindrical rings being interconnected to form the stent, each cylindrical ring having a first delivery diameter and a second expanded diameter;

each cylindrical ring having a proximal end and a distal end and a cylindrical wall extending circumferentially between the proximal end and the distal end of the cylindrical ring;

at least one undulating link attaching at least one of the body rings to adjacent body ring, the undulating link being positioned substantially within the cylindrical wall of the body ring; and

at least one straight link attaching the proximal end ring to an adjacent body ring and at least one straight link attaching the distal end ring to an adjacent body ring.

78. The stent of claim 77, wherein the body rings have a W-shaped portion having curved struts positioned circumferentially adjacent to the at least one undulating link.

79. The stent of claim 77, wherein the distal end ring has a W-shaped portion having curved struts positioned circumferentially adjacent to the at least one straight link.

80. The stent of claim 77, wherein the proximal end ring has a Y-shaped portion comprised of a valley attached to the at least one straight link.

81. The stent of claim 77, wherein three straight links attach the proximal end ring and the distal end ring to respective adjacent body rings.