Umbrella-shaped suture anchor device with actuating ring member

• US 5,545,180 A
• Filed: 04/28/1994
• Issued: 08/13/1996
• Est. Priority Date: 12/13/1993
• Status: Expired due to Term

• Current Assignee: Ethicon Incorporated (Johnson & Johnson)
• Original Assignee: Ethicon Incorporated (Johnson & Johnson)
• Inventors: Yi, Sung S., Luscombe, Brian H., Jamiolkowski, Dennis D., Pedlick, Jack S., Seritella, Keith A., Harwin, Steven F., Steckel, Mark G., Di Giovanni, John, Zwaskis, William, Le, Thu A.
• Primary Examiner(s): Jackson, Gary
• Application Number:
  US08/235,024
• Time in Patent Office: 838 Days
• Field of Search: 606/72, 606/74, 606/75, 606/220, 606/232, 411/340, 411/508, 411/509, 411/510, 411/511, 411/904
• US Class Current: 606/232
• 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 17/0401 Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors A61B17/0642 takes precedence; fixation devices for tendons or ligaments A61F2/0811
• CPC Class Codes: A61B 17/0487 Suture clamps, clips or locks, e.g. for replacing suture knots; Instruments for applying or removing suture clamps, clips or locks suture anchors A61B17/0401; wound clamps or clips A61B17/08; ligaturing clamps or clips A61B17/122
• CPC Class Codes: A61B 17/86 Pins or screws or threaded wires; nuts therefor A61B17/72 take precedence
• CPC Class Codes: A61B 2017/00004 (bio)absorbable, (bio)resorbable or resorptive
• CPC Class Codes: A61B 2017/0409 Instruments for applying suture anchors
• CPC Class Codes: A61B 2017/0414 having a suture-receiving opening, e.g. lateral opening
• CPC Class Codes: A61B 2017/0424 the separate member staying in the anchor after placement
• CPC Class Codes: A61B 2017/044 with a threaded shaft, e.g. screws
• CPC Class Codes: A61B 2017/06019 by means of a suture-receiving lateral eyelet machined in the needle
• CPC Class Codes: A61B 2090/037 with a frangible part, e.g. by reduced diameter
• CPC Class Codes: A61F 2/0811 Fixation devices for tendons or ligaments
• CPC Class Codes: A61F 2002/30299 umbrella-shaped or mushroom-shaped
• CPC Class Codes: A61F 2230/0093 Umbrella-shaped, e.g. mushroom-shaped
• CPC Class Codes: A61L 31/048 obtained by reactions only involving carbon-to-carbon unsaturated bonds A61L31/041 takes precedence
• CPC Class Codes: A61L 31/06 obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds A61L31/041 takes precedence
• CPC Class Codes: A61L 31/148 Materials at least partially resorbable by the body
• CPC Class Codes: C08L 23/00 Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
• CPC Class Codes: C08L 59/00 Compositions of polyacetals; Compositions of derivatives of polyacetals of polyvinyl acetals C08L29/14
• CPC Class Codes: C08L 67/00 Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain of polyester-amides C08L77/12; of polyester-imides C08L79/08; Compositions of derivatives of such polymers
• CPC Class Codes: C08L 75/04 : Polyurethanes
• CPC Class Codes: C08L 77/00 : Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain of polyhydrazides C08L79/06; of polyamideimides or polyamide acids C08L79/08; Compositions of derivatives of such polymers
• CPC Class Codes: Y10S 606/908 : Bioabsorbable material
• CPC Class Codes: Y10S 606/91 : Polymer

Abstract

A suture anchor device having an anchor member with outwardly extending wing members and an actuating wedge member. The suture anchor device is inserted into a bore hole in a bone as part of an orthopedic surgical procedure wherein soft tissue such as a tendon or ligament is attached to the surface of the bone. The wing members are spread outwardly by the wedge member to lock the suture anchor device in the bone. The suture anchor has similar utility in soft tissue applications.

Claims

1. A suture anchor assembly, comprising

an elongated anchor member having

a distal end and a proximal end,

a shaft extending proximally away from said anchor member proximal end, and

a plurality of wing members extending proximally and radially outward from said anchor member proximal end and terminating in a free end, said wing members being spaced from said shaft;

an operating member slidably mounted on said shaft for sliding movement relative to said anchor member from a first normal position remote from said anchor member to an operative position in which said operating member is lodged between said shaft and said wing members to thereby restrain said wing members from moving inwardly toward said shaft from the radially outward extending position; and

suture retaining means in said shaft.

2. The assembly of claim 1, wherein said operating member is a sleeve.

3. The assembly according to claim 2, wherein said sleeve has opposed proximal and distal ends, said sleeve having a wedge-shaped distal portion that tapers inwardly toward said sleeve distal end.

4. The assembly according to claim 3, wherein said suture retaining means comprises two slots in said cylinder, with each slot extending from the distal to proximal ends of said operating member, and wherein each of said slots overlies an aperture in said shaft, through which the suture is adapted to extend.

5. The assembly according to claim 2, wherein said sleeve and said shaft have cooperating locking means for locking said sleeve to said shaft when said sleeve is in said normal position.

6. The assembly according to claim 5, wherein said sleeve and said shaft have cooperating locking means for locking said sleeve to said shaft when said sleeve is in said operative position, whereby said wing members are prevented by said locked sleeve from deflecting inwardly from said outward position.

7. The assembly according to claim 2, wherein said sleeve and said shaft have cooperating locking means for locking said sleeve to said shaft when said sleeve is in said operative position, whereby said wing members are prevented by said locked sleeve from deflecting inwardly from said outward position.

8. The assembly according to claim 2, wherein said anchor member and said sleeve each comprises a bioabsorbable material.

9. The assembly according to claim 8, wherein the bioabsorbable material comprises a member selected from the group consisting of homopolymers and copolymers of lactide, glycolide, trimethylene carbonate, caprolactone, and p-dioxanone and blends thereof.

10. The assembly according to claim 2, wherein said anchor member and said sleeve each comprises a biocompatible nonabsorbable material.

11. The assembly according to claim 10, wherein the nonabsorbable material comprises a member selected from the group consisting of polyesters, polyamides, polyolefins, polyurethanes, and polyacetals.

12. The assembly according to claim 2, wherein said sleeve is lodged between said shaft and said wing members to thereby further extend and hold said wing members in a radially outward further extending position.

13. The assembly according to claim 1, wherein said anchor member is adapted for anchoring in a bone and wherein said anchor member comprises means to promote bone growth, whereby bonding of the anchor member to the bone is increased thereby.

14. The assembly according to claim 13, wherein said means to promote bone growth comprises a microporous surface of said anchor member which is in contact with said bone.

15. The assembly according to claim 14, wherein said anchor member is comprised of titanium or titanium alloy.

16. The assembly according to claim 13, wherein the anchor member comprises bone growth factors.

17. The assembly according to claim 1, wherein said shaft terminates in a proximal end remote from said anchor member, said shaft proximal end having a socket therein for receiving a rod.

18. The assembly according to claim 1, further comprising a surgical suture mounted in the suture retaining means.

19. The assembly according to claim 1, wherein said suture retaining means is adjacent to the proximal end of said shaft.

20. The assembly according to claim 19, wherein said suture retaining means comprises a hole through said shaft.

21. The assembly according to claim 1, wherein said shaft comprises a proximally extending breakaway portion thereof, wherein said breakaway portion is adapted to facilitate placement of said device in a bone or soft tissue and, after such placement, is adapted to be broken from the shaft and removed.

22. The assembly according to claim 1, wherein said shaft terminates in a proximal end remote from said anchor member, said shaft proximal end being adapted for engagement with a removable clamping member.

23. The assembly according to claim 1, wherein the anchor member is adapted for anchoring in a bone and wherein a surface of the anchor member, in contact with the bone, is coated with a substance to promote adhesion thereof to the bone.

24. The assembly according to claim 1, wherein said operating member is a ring.

25. The assembly according to claim 1, wherein the anchor member comprises means for anchoring in soft tissue for repair of soft tissue.

26. A method of implanting a suture anchor assembly in a bone, comprising:

I) inserting a suture anchor assembly in a bore hole drilled in a bone, wherein the suture anchor assembly comprises an elongated anchor member having a distal end and a proximal end, a shaft extending proximally away from said anchor member proximal end, and a plurality of wing members extending proximally and radially outward from said anchor member proximal end and terminating in a free end, said wing members being spaced from said shaft;

an operating member slidably mounted on said shaft for sliding movement relative to said anchor member from a first normal position remote from said anchor member to an operative position in which said operating member is lodged between said shaft and said wing members to thereby restrain said wing members from moving inwardly toward said shaft from the radially outward extending position; and

suture retaining means in said shaft, and

II) sliding said operating member of said suture anchor assembly relative to said anchor member thereof from said first position to said operative position.