Composite valved graft comprising double sewing cuffs

• US 10,143,549 B2
• Filed: 10/10/2014
• Issued: 12/04/2018
• Est. Priority Date: 08/05/2014
• Status: Active Grant

• Current Assignee: Gachon University of Industry-Academic Cooperation Foundation, Gil Medical Center
• Original Assignee: Gachon University of Industry-Academic Cooperation Foundation, Gil Medical Center
• Inventors: Park, Chul Hyun
• Primary Examiner(s): Sharma, Yashita
• Application Number:
  US14/411,837
• Publication Number:
  US 20170135812A1
• Time in Patent Office: 1,516 Days
• Field of Search: 623 11- 24
• CPC Class Codes: A61B 17/0057 Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect sutures A61B17/04; closing rectum or urethra near body surface A61F2/0009
• CPC Class Codes: A61B 17/04 for suturing wounds; Holders or packages for needles or suture materials suture materials A61L17/00
• CPC Class Codes: A61B 2017/0404 Buttons
• CPC Class Codes: A61F 2/06 Blood vessels
• CPC Class Codes: A61F 2/064 with special features to facilitate anastomotic coupling anastomosis of natural blood vessels A61B17/11
• CPC Class Codes: A61F 2/2403 with pivoting rigid closure members check valves with hinged closure members in general F16K15/03
• CPC Class Codes: A61F 2/2409 Support rings therefor, e.g. for connecting valves to tissue annuloplasty rings A61F2/2442
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• CPC Class Codes: A61F 2210/0076 multilayered, e.g. laminated structures
• CPC Class Codes: A61F 2220/0008 Fixation appliances for connecting prostheses to the body

Abstract

Disclosed is an artificial valved conduit that is a composite valved graft comprising double sewing cuffs, which can be easily used in aortic root replacement. The composite valved graft comprises a valve and a conduit part connected to the valve. The conduit part comprises a sewing cuff positioned on the outer circumference thereof. The sewing cuff comprises a first sewing cuff and a second sewing cuff positioned below the first sewing cuff. Accordingly, a double suture is easily performed, so that it is possible to prevent the loss of blood after a surgery and to reduce surgical time at the same time.

Claims

1. A composite valved graft for aortic root replacement in which a portion of the aorta is resected and replaced, said composite valved graft comprising;

a valve; and

a conduit part connected to the valve, wherein the conduit part presents a first opening and the valve is positioned within the first opening,

wherein the conduit part comprises a ring-shaped sewing cuff surrounding and connected to the outer circumference of the conduit part, wherein the sewing cuff comprises a first sewing cuff and a second sewing cuff positioned below the first sewing cuff, wherein the first and second sewing cuffs are spaced apart from the first opening of the conduit part,

wherein the distance between the first sewn cuff and the second sewing cuff is increased as they outwardly extend; and

wherein the first sewing cuff and the second sewing cuff are configured to be connected to different portions of human tissue.

2. The composite valved graft, of claim 1, wherein the valve comprises a valve part having a valve leaflet and a valve leaflet support, and a hollow opening positioned around the outside of the valve part to accommodate the valve part therein, and

wherein the valve leaflet support is connected to the inner surface of the opening to support the valve leaflet.

3. The composite valved graft of any one of claims 1 and 2, wherein each of the first and second sewing cuffs has a continuous ring shape.

4. The composite valved graft of claim 3, wherein the first and second sewing cuffs are positioned parallel to each other while being spaced apart.

5. The composite valved graft of claim 3, wherein the first and second sewing cute extend from the same position on the outer circumference of the conduit part.

6. A composite valved graft for full aortic root replacement in which a portion of the aorta is resected and replaced, wherein the composite valved graft comprises:

a valve; and

a conduit part connected to the valve, wherein the conduit part presents a first opening and the valve is positioned within the first opening

wherein the conduit part comprises a ring-shaped sewing cuff surrounding and connected to the outer circumference of the conduit part, wherein the sewing cuff comprises a first sewing cuff and a second sewing cuff positioned below the first sewing cuff, wherein the first and second sewing cuffs are spaced apart from the first opening of the conduit part,

wherein the distance between the first sewing cuff and the second sewing cuff is increased as they outwardly extend; and

wherein the first and second sewing cuffs extend from the same position on the outer circumference of the conduit part.

7. The composite valved graft of claim 6, wherein the first and second sewing cuffs are manufactured of any one of fiber, elastic material and semi-rigid material.

8. The composite valved graft of claim 6, wherein the first and second sewing cuffs are integrally manufactured with each other.