Cardiovascular valve assembly
A cardiovascular valve assembly comprising a base member that is affixed to a patient using conventional sutures or staples, and a replaceable valve member including a valve frame that supports a plurality of valve leaflets. The valve member mates with the base member, and can be detached from the base member for convenient replacement.
1. A cardiovascular valve assembly having a first end and a second end, said valve assembly comprising:
a base member comprised of a plurality of arcuate base sections and a plurality of mounting sections, each arcuate base section having a pair of distal ends that are disposed closer to the first end of the valve assembly than the remainder of the arcuate base section, wherein the distal ends of adjacent arcuate base sections join a common mounting section; and
a valve member detachably mountable to the base member, said valve member including:
a plurality of mounting assemblies respectively engageable with the plurality of mounting sections in an interlocking manner such that the valve member can be removed and replaced, and
a plurality of arcuate portions for supporting a plurality of leaflets, each arcuate portion having a pair of distal ends, wherein respective mounting assemblies are located at distal ends of adjacent arcuate portions,
wherein said plurality of arcuate portions of said valve member are respectively seated on, and extend generally parallel to, said plurality of arcuate base sections to form a seal therebetween when said plurality of mounting sections are engaged with said plurality of mounting assemblies in an interlocking manner.
2. A cardiovascular valve assembly according to claim 1 , wherein said plurality of arcuate portions are comprised of a single continuous wire.
3. A cardiovascular valve assembly according to claim 1 , wherein each of said plurality of arcuate portions is formed of an individual wire.
4. A cardiovascular valve assembly according to claim 1 , wherein said plurality of arcuate portions are formed of a material having an elasticity such that it returns to its original shape after being deformed.
5. A cardiovascular valve assembly according to claim 1 , wherein each of said plurality of arcuate portions is comprised of a generally flat ribbon formed of a polymer material.
6. A cardiovascular valve assembly according to claim 1 , wherein each said arcuate portion includes at least one kink formed therein.
7. A cardiovascular valve assembly according to claim 1 , wherein each said arcuate portion includes hinge means.
8. A cardiovascular valve assembly according to claim 7 , wherein said hinge means includes a notch formed in said arcuate portion.
9. A cardiovascular valve assembly according to claim 7 , wherein each said arcuate portion includes a first portion and a second portion, said hinge means including a flexible connecting pad that joins the first portion to the second portion.
10. A cardiovascular valve assembly according to claim 1 , wherein each mounting assembly of the valve member includes a mounting element engageable with said base member to interlock the mounting assembly with a respective mounting section of the base member.
11. A cardiovascular valve assembly according to claim 10 , wherein said mounting element includes a prismatic-shaped spike.
12. A cardiovascular valve assembly according to claim 10 , wherein said mounting element includes a bar.
13. A cardiovascular valve assembly according to claim 10 , wherein said mounting element includes a clip.
14. A cardiovascular valve assembly according to claim 10 , wherein each mounting section of said base member includes at least one mating recess for respectively receiving said mounting element of each said mounting assembly.
15. A cardiovascular valve assembly according to claim 14 , wherein said at least one mating recess is a slot.
16. A cardiovascular valve assembly according to claim 1 , wherein each mounting assembly of the valve member includes a cap.
17. A cardiovascular valve assembly according to claim 16 , wherein each mounting assembly of the valve member includes a retaining pin engageable with said cap.
18. A cardiovascular valve assembly according to claim 16 , wherein said cap includes a bulbous portion.
19. A cardiovascular valve assembly according to claim 1 , wherein each of said mounting sections of said base member includes a mating recess for receiving a respective mounting element of said mounting assembly.
20. A cardiovascular valve assembly according to claim 1 , wherein said cardiovascular valve assembly further comprises a sewing cuff attached to said base member.
21. A cardiovascular valve assembly according to claim 1 , wherein said plurality of leaflets are respectively attached to said plurality of arcuate portions of said valve member such that an edge of said plurality of leaflets extends at least 1 mm beyond said arcuate portions.
22. A cardiovascular valve assembly according to claim 1 , wherein said plurality of arcuate portions are comprised of a single continuous generally flat ribbon formed of a polymer material.
23. A cardiovascular valve assembly according to claim 1 , wherein each of said arcuate portions includes a plurality of holes.
24. A cardiovascular valve assembly according to claim 1 , wherein each of said arcuate base sections includes a plurality of holes.