Prosthetic vascular valve and methods associated therewith

• US 10,350,095 B2
• Filed: 08/17/2018
• Issued: 07/16/2019
• Est. Priority Date: 08/17/2017
• Status: Active Grant

• Current Assignee: Incubar LLC
• Original Assignee: Incubar LLC
• Inventors: Fish, R. David
• Primary Examiner(s): Tanner, Jocelin C
• Application Number:
  US16/104,821
• Publication Number:
  US 20190053927A1
• Time in Patent Office: 333 Days
• CPC Class Codes: A61F 2/0095 Packages or dispensers for prostheses or other implants for intraocular lenses A61F2/1691; for dental surgery A61C19/02
• CPC Class Codes: A61F 2/2427 Devices for manipulating or deploying heart valves during implantation
• CPC Class Codes: A61F 2/2475 Venous valves
• CPC Class Codes: A61F 2/848 having means for fixation to the vessel wall, e.g. barbs
• CPC Class Codes: A61F 2/90 characterised by a net-like or mesh-like structure
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2002/8483 Barbs
• CPC Class Codes: A61F 2210/0004 bioabsorbable
• CPC Class Codes: A61F 2210/0014 using shape memory or superelastic materials, e.g. nitinol
• CPC Class Codes: A61F 2220/0075 sutured, ligatured or stitched, retained or tied with a rope, string, thread, wire or cable
• CPC Class Codes: A61F 2230/0069 cylindrical
• CPC Class Codes: A61F 2240/001 Designing or manufacturing processes

Abstract

A prosthetic vascular valve includes one or more continuous loops of frame material or one or more strands of material that do not form a continuous loop. The frame includes a plurality of longitudinal portions, wherein a membrane is attached to at least one of the longitudinal portions, and wherein the membrane is configured to open and close. During implantation, the frame engages the inner surface of the vein wall and is biased against the vein wall to remain stationary. In use, blood flows from an upstream end to a downstream end, wherein the membrane mitigates regurgitation of the blood as the blood is conveyed through the subject vein.

Claims

1. A prosthetic vascular valve for use in a blood vessel or vascular conduit, the prosthetic vascular valve comprising:

a frame including a loop section having a first loop and a second loop, wherein the first loop is situated diametrically opposite the second loop, wherein a length of the loop section of the frame is about two to eight times greater than a width of the loop section; and

a membrane attached to the first loop and the second loop, the membrane including mobile portions that are configured to move radially inward and radially outward corresponding to closed and open positions of a distal free edge of the membrane, respectively, wherein the mobile portions of the membrane reside between convergence areas of the first loop and the second loop, wherein the membrane includes a proximal edge that is spaced apart longitudinally from the convergence areas in a proximal direction.

2. The prosthetic vascular valve of claim 1, wherein an outer surface of the first loop and the second loop is configured to lie on a common cylinder.

3. The prosthetic vascular valve of claim 1, wherein the frame is made of a single piece of cut tubular material.

4. The prosthetic vascular valve of claim 1, wherein the frame is made of two wire pieces.

5. The prosthetic vascular valve of claim 1, wherein the membrane comprises a cross-linked mammalian tissue.

6. The prosthetic vascular valve of claim 1, wherein the membrane is a single piece of material that does not include any seams and is made from a cylindrical piece of donor tissue that has been treated, shaped and attached to the frame.

7. The prosthetic vascular valve of claim 1, wherein the proximal edge of the membrane includes an arcuate shape.