Bioprosthetic cardiovascular valve system

• US 6,530,952 B2
• Filed: 12/21/2000
• Issued: 03/11/2003
• Est. Priority Date: 12/29/1997
• Status: Expired due to Term

• Current Assignee: Cleveland Clinic Foundation
• Original Assignee: Cleveland Clinic Foundation
• Inventors: Vesely, Ivan
• Primary Examiner(s): McDermott, Corrine
• Assistant Examiner(s): STEWART, ALVIN J
• Application Number:
  US09/745,240
• Publication Number:
  US 20010002445A1
• Time in Patent Office: 810 Days
• Field of Search: 623/2.18, 623/2.1, 623/2.11, 623/2.14, 623/2.12, 623/1.24, 623/1.25, 623/1.26
• US Class Current: 623/2.18
• CPC Class Codes: A61B 2017/2944 Translation of jaw members
• CPC Class Codes: A61B 2090/3929 Active markers
• CPC Class Codes: A61B 2090/397 electromagnetic other than visible, e.g. microwave
• CPC Class Codes: A61F 2/2409 Support rings therefor, e.g. for connecting valves to tissue annuloplasty rings A61F2/2442
• CPC Class Codes: A61F 2/2412 with soft flexible valve members, e.g. tissue valves shaped like natural valves check valves with flexible valve members in general F16K15/14
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• CPC Class Codes: A61F 2/2427 Devices for manipulating or deploying heart valves during implantation
• CPC Class Codes: A61F 2/243 Deployment by mechanical expansion
• CPC Class Codes: A61F 2/2439 Expansion controlled by filaments
• CPC Class Codes: A61F 2220/0066 stapled

Abstract

A cardiovascular valve system including a permanent base unit that is affixed to the patient using conventional sutures or staples, and a collapsible valve having a collapsible frame that mates with the permanent base unit, and supports valve leaflets. An installed collapsible frame may be re-collapsed and disengaged from the permanent housing. A new collapsible valve is then installed, to resume the function of the prosthesis.

Claims

1. A cardiovascular valve system comprising:

a base unit permanently attachable to tissue; and

a collapsible valve engageable and disengageable with said base unit, wherein said collapsible valve includes a collapsible frame having a plurality of articulated struts, said collapsible frame movable between an expanded position to engage the collapsible valve with the base unit, and a collapsed position to disengage the collapsible valve from the base unit.

2. A cardiovascular valve system according to claim 1, wherein collapsible valve further includes an occluding member movable between an occluded position and an open position, said occluding member supported by said collapsible frame.

3. A cardiovascular valve system according to claim 2, wherein said occluding member includes at least one leaflet occluder.

4. A cardiovascular valve system according to claim 1, wherein said articulated struts are generally rigid.

5. A cardiovascular valve system according to claim 1, wherein said base unit includes a receptacle for receiving the collapsible valve.

6. A cardiovascular valve system according to claim 5, wherein said receptacle includes a plurality of plates.

7. A cardiovascular valve system according to claim 1, wherein said system further comprises at least one retaining member for retaining the engagement of said collapsible valve with said permanent base unit.

8. A cardiovascular valve system according to claim 7, wherein said retaining member includes a gusset.

9. A cardiovascular valve system according to claim 7, wherein said retaining member includes a slot.

10. A cardiovascular valve system according to claim 7, wherein said retaining member includes a generally elastic retaining clip.

11. A cardiovascular valve system according to claim 7, wherein said retaining member includes a channel.

12. A cardiovascular valve system according to claim 7, wherein said retaining member includes a generally rigid retainer.

13. A cardiovascular valve system according to claim 7, wherein said collapsible frame includes articulating hook members, said articulating hook members engageable with said retaining member.

14. A cardiovascular valve system according to claim 13, wherein said articulating hook members are rotatable between an engagement position and a disengagement position.

15. A cardiovascular valve system comprising:

a base unit permanently attachable to tissue, said base unit including a receptacle; and

a collapsible valve engageable and disengageable with the receptacle, wherein said collapsible valve includes a collapsible frame having a plurality of articulated struts, said collapsible frame movable between an expanded position to engage the collapsible valve with the receptacle, and a collapsed position to disengage the collapsible valve from the receptacle.

16. A cardiovascular valve system according to claim 15, wherein said receptacle includes a plurality of plates.

17. A cardiovascular valve system according to claim 16, wherein said plurality of plates are generally triangular.

18. A cardiovascular valve system according to claim 17, wherein said plurality of plates form a valve orifice.

19. A cardiovascular valve system according to claim 15, wherein said collapsible valve includes at least one leaflet attached with said plurality of articulated struts.

20. A cardiovascular valve system according to claim 15, wherein said collapsible frame includes articulating hook members, said articulating hook members engageable with said base unit.