Apparatus for restoring aortic valve and treatment method using thereof

• US 20050165478A1
• Filed: 03/26/2004
• Published: 07/28/2005
• Est. Priority Date: 03/28/2003
• Status: Active Grant

• Current Assignee: Sciencity Company Limited
• Original Assignee: Sciencity Company Limited
• Inventors: Song, Meong-Gun
• Granted Patent: US 7,922,763 B2
• Time in Patent Office: Days
• US Class Current: 623/2.220
• CPC Class Codes: A61F 2/2445 Annuloplasty rings in direct contact with the valve annulus

Abstract

The present invention is an apparatus designed to effectuate restoration of normal aortic valvular function where there is aortic valvular regurgitation either primary or secondary to diseases of the aorta such as aortic aneurysm, aortic dissection, rheumatic aortic disease annuloaortic ectasia and etc. is present. The present invention provides an apparatus for repairing aortic annulus composed of (1) a band type inner stabilizer (sometimes ring type inner stabilizer) which is implanted in the true aortic lumen to fix the aortic annular diameter and (2) an outer felt stabilizer which is implanted on the outside surface of aorta to support the inner stabilizer. Furthermore, the present invention provides an apparatus for restoring the sinotubular junction in the ascending aorta which is composed of (1) a ring type inner stabilizer which is implanted in the sinotubular junction in the ascending aorta and (2) an outer felt stabilizer which is implanted on the outside surface of the sinotubular junction to support the inner stabilizer.

Claims

1. An apparatus for restoring aortic valve which is used for the correction of aortic valvular regurgitation caused by increase in the diameter of aortic annulus and/or sinotubular junction, wherein the apparatus for restoring aortic valve consists of the aortic annulus repairing apparatus in band or ring type that stabilizes uniformly the diameter of aortic annulus and the sinotubular junction repairing apparatus in ring type that stabilizes uniformly the diameter of sinotubular junction.

2. The apparatus for restoring aortic valve as set forth in claim 1, wherein the aortic annulus repairing apparatus consists of the inner stabilizer that stabilizes the diameter of aortic annulus from the inside of the aortic lumen and the outer felt stabilizer that supports the diameter from the outside of the aortic lumen.

3. The apparatus for restoring aortic valve as set forth in claim 2, wherein the inner stabilizer and outer felt stabilizer are a band type or a ring type.

4. The apparatus for restoring aortic valve as set forth in claim 2, wherein the sewing passage of the inner stabilizer is formed thinner than the surrounding area in order to stick the stabilizer tightly well on the wall of the aortic lumen.

5. The apparatus for restoring aortic valves set forth in claim 2, wherein the inner stabilizer and the outer felt stabilizer of the ring type have three equally spaced markers in the circumference, which e1 ables to determine the direction of the stabilizer.

6. The apparatus for restoring aortic valve as set forth in claim 2, wherein the band type of inner stabilizer and outer felt stabilizer has a vertical mark on both ends in order to fix only the fibrous part of aortic annulus and has about 2 mm extra margin outside of the vertical line which enables t e stabilization more easily.

7. The apparatus for restoring aortic valve as set forth in claim 2, wherein the inner stabilizer and outer felt stabilizer are made of any synthetic fiber or biological material harmless to human.

8. The apparatus for restoring aortic valve as set forth in claim 1, wherein the sinotubular junction repairing apparatus is composed of the inner stabilizer in ring type that stabilizes the diameter of sinotubular junction land the outer felt stabilizer in ring type that supports the above diameter from outside of sinotubular junction.

9. The apparatus for restoring aortic valve as set forth in claim 8 wherein the inner stabilizer and outer felt stabilizer are formed in a ring type.

10. The apparatus for restoring aortic valve as set forth in claim 8, wherein the suture passage of the above inner stabilizer is formed thinner than the surrounding part in order to stick the stabilizer tightly well on thp surrounding wall in the sinotubular junction.

11. The apparatus for restoring aortic valve as set forth in claim 8, wherein the inner stabilizer and the outer felt stabilizer of the ring type have three equally spaced markers in the circumference, which enables to determine the direction.

12. The apparatus for restoring aortic valve as set forth in claim 8, wherein the inner stabilizer and outer felt stabilizer are made of any synthetic fiber or biological material harmless to human.

13. A treatment method for the aortic valvular regurgitation using the aortic valve restoring apparatus as set forth in claim 1,

wherein aortic annulus inner stabilizer in band type or ring type is implanted to inside of the aortic lumen, and the annulus outer felt stabilizer is located to the outside of the aortic lumen to support the above annulus inner stabilizer, and thus normalizing the diameter of aortic annulus which is an effective treatment for the aortic valvular regurgitation.

14. A treatment method for the aortic valvular regurgitation using the aortic valve repairing apparatus as set forth in claim 1, wherein STJ inner stabilizer in the ring type is implanted to the inside of the sinotubular junction, and the STJ outer felt stabilizer is located to the outside of the sinotubular junction to support the above STJ inner stabilizer, and thus normalizing the diameter of sinotubular junction.