Stent with outer member to embolize an aneurysm

• US 9,358,140 B1
• Filed: 12/07/2014
• Issued: 06/07/2016
• Est. Priority Date: 11/18/2009
• Status: Expired due to Fees

• Current Assignee: Aneuclose LLC
• Original Assignee: Aneuclose LLC
• Inventors: Janjua, Tariq M., Connor, Robert A., Knudson, Mark
• Primary Examiner(s): Prone, Christopher D
• Assistant Examiner(s): SCHILLINGER, ANN M
• Application Number:
  US14/562,725
• Publication Number:
  US 20160151177A1
• Time in Patent Office: 548 Days
• US Class Current: 1/1
• CPC Class Codes: A61B 17/12022 Occluding by internal devices, e.g. balloons or releasable wires plugging an opening in the wall of an organ A61B17/0057; occluders for the cervical canal A61F6/146; vas deferens occluders A61F6/20
• CPC Class Codes: A61B 17/12118 for positioning in conjunction with a stent
• CPC Class Codes: A61B 17/1219 expandable in contact with liquids
• CPC Class Codes: A61B 2017/00898 expandable upon contact with fluid
• CPC Class Codes: A61B 2090/3925 ultrasonic
• 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 2/91 made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
• CPC Class Codes: A61F 2002/075 the stent being loosely attached to the graft material, e.g. by stitching
• CPC Class Codes: A61F 2002/823 Stents, different from stent-grafts, adapted to cover an aneurysm
• CPC Class Codes: A61F 2250/0065 telescopic
• CPC Class Codes: A61L 2430/36 for embolization or occlusion, e.g. vaso-occlusive compositions or devices
• CPC Class Codes: A61L 31/022 Metals or alloys
• CPC Class Codes: A61L 31/10 Macromolecular materials
• CPC Class Codes: A61L 31/14 Materials characterised by their function or physical properties , e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
• CPC Class Codes: A61L 31/18 Materials at least partially X-ray or laser opaque

Abstract

This invention is a stent to reduce blood flow to an aneurysm comprising: (a) an inner member, wherein this inner member is expanded from a first configuration to a second configuration within the parent vessel of an aneurysm, wherein the circumference of the second configuration is larger than the circumference of the first configuration; and (b) an outer member, wherein this outer member is less porous than the inner member, wherein this outer member covers or surrounds a first percentage of the surface area of the inner member when the inner structure is in the first configuration, wherein this outer member covers or surrounds a second percentage of the surface area of the inner member when the inner structure is in the second configuration, and wherein the second percentage less than the first percentage.

Claims

1. A stent to reduce blood flow to an aneurysm comprising:

(a) an inner member, wherein this inner member is expanded from a first configuration to a second configuration within a parent vessel of an aneurysm, wherein a circumference of the second configuration is larger than a circumference of the first configuration; and

(b) an outer member, wherein said outer member is less porous than the inner member, wherein said outer member covers or surrounds a first percentage of a surface area of the inner member when the inner member is in the first configuration, wherein said outer member covers or surrounds a second percentage of the surface area of the inner member when the inner member is in the second configuration, wherein the second percentage is lower than the first percentage, wherein the outer member is between the inner member and a plurality of expandable arcuate ribs, wherein said plurality of expandable arcuate ribs span all or part of the circumference of inner member, and wherein the outer member can slide between the inner member and said plurality of arcuate ribs during expansion of the inner member.