Ring cinch assembly to attach bone to tissue

Abstract

Systems, apparatuses and methods for securing tissue to bone using a bone anchoring system are described. Methods and apparatuses may allow transformation between locked and unlocked states, thereby allowing adjustment of the tension in the suture. The apparatus and/or methods may allow unidirectional movement of a suture, while preventing slippage or movement of the suture and tissue in the opposite direction. Ends of a suture may be individually tensioned to adjust positioning of a tissue with respect to a bone.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

Other objects and advantages of the invention will become apparent upon reading the following detailed description and upon reference to the accompanying drawings in which:

FIG. 1 is a schematic of a bone and tissue interface.

FIG. 2A is a perspective front view of an embodiment of a bone anchor.

FIG. 2B is a perspective side view of the bone anchor along line A-A of FIG. 2A.

FIG. 2C is a cross-sectional view of the bond anchor depicted in FIG. 2A.

FIG. 3A is a perspective side view of bone anchor.

FIG. 3B is exploded side view along line B-B of FIG. 3A.

FIG. 3C is perspective top view of the bone anchor depicted in 3A.

FIG. 3D is a perspective view of the top of the bond anchor depicted in 3C in an open state.

FIG. 3E is a cross-sectional view of the bone anchor depicted in FIG. 3A.

FIG. 4A is a cross-sectional view of an embodiment of an apparatus that includes bone anchor member and a plug portion.

FIG. 4B is a perspective side view of the plug portion depicted in FIG. 4A.

FIG. 4C is a perspective side view of an opposing side of the plug portion depicted in FIG. 4A.

FIG. 5A is a cross-sectional view of an embodiment of a bone anchor that includes bone anchor member and a plug portion.

FIG. 5B is a perspective side view of the plug portion depicted in FIG. 5A.

FIG. 5C is a perspective side view of an opposing side of the plug portion depicted in FIG. 5A.

FIG. 6A is a perspective side view of an embodiment of plug portion in a closed state.

FIG. 6B is a perspective side view of the plug portion depicted in FIG. 6A in a partially open state.

FIG. 6C is perspective a top view of the plug portion depicted in FIG. 6B.

FIG. 6D is a cross-sectional view of the bone anchor depicted in FIG. 6A.

FIG. 7 is perspective side view of an embodiment of a plug portion in a partially open state.

FIG. 8A is a perspective side view of an embodiment of a plug.

FIG. 8B is a perspective side view of the plug depicted in FIG. 8A in a partially open state.

FIG. 8C is a perspective top view plug depicted in FIG. 8A in a fully open state.

FIG. 9 is a cross-sectional view of an embodiment of a bond anchor having at least one adhesive delivery channel.

FIG. 10A is a cross-sectional view of a bone anchor that includes a bone anchor member and a plug portion.

FIG. 10B is a perspective view of the bone anchor of FIG. 10A positioned in a hole of a bone.

FIG. 11 is a cross-sectional view of an embodiment of a bone anchor that includes a bone anchor member and a plug portion.

FIG. 12 is perspective side view of an embodiment of a bone anchor positioned in a bone with two openings.

FIG. 13A is a cross-sectional view of an embodiment of a bone anchor that includes a bone anchor member and a plug portion.

FIGS. 13B and 13C are illustrations of usage of the bone anchor depicted in FIG. 13A.

FIG. 14 is a cross-sectional view of an embodiment of an apparatus that includes a bone anchor member with a spring element.

FIG. 15A is perspective top view of top view of an embodiment of a bone anchor that includes a bone anchor and a plug portion.

FIG. 15B is a cross-sectional view of the bone anchor depicted in FIG. 15A along line 15C-15C.

FIG. 15C is perspective top view of the bone anchor of FIG. 15A in a locked state.

FIG. 16 is a perspective view illustrating use of a suture in connection with the bone anchor depicted in FIGS. 15A-15C.

FIGS. 17A and 17B are cross-sectional views of embodiments of a bone anchor in an unlocked state and a locked state, respectively.

FIGS. 18A and 18B are cross-sectional views of embodiments of a bone anchor in an unlocked state and a locked state, respectively.

FIGS. 19A and 19B are cross-sectional views of an alternative embodiment of the bone anchor depicted in FIGS. 17A and 17B.

FIGS. 20A and 20B are, respectively, a cross-sectional view and a perspective side view of an embodiment of an unlocked state of a bone anchor that includes a bone anchor member and a plug portion.

FIGS. 21A and 21B are, respectively, a cross-sectional view and a perspective side view depicted in FIGS. 20A and 20B in a locked state.

FIG. 22A is a cross-sectional view of an embodiment of a bone anchor that includes a bone anchor member and a plug portion.

FIG. 22B is a cross-sectional view of the plug portion inserted in the bone anchor member depicted in FIG. 22A.

FIG. 23A is a cross-sectional view of an embodiment of the plug depicted in FIGS. 22A and 22B.

FIG. 23B is a perspective side view of the plug depicted in FIG. 23A.

FIG. 23C is a perspective bottom view of the plug depicted in FIG. 23A.

FIG. 24A is a cross-sectional view of an embodiment of a bone anchor that includes a bone anchor member and a plug portion.

FIG. 24B is a cross-sectional view of a plug portion inserted into the bone anchor member depicted in FIG. 24A.

FIGS. 25A and 25B are illustrations of the bone anchor depicted in FIGS. 24A and 24B employing two sutures.

FIG. 26A depicts an embodiment of a bone anchor.

FIG. 26B is a cross-sectional view depicting a suture locking mechanism of the bone anchor depicted in FIG. 26A in a closed position.

FIG. 26C is a cross-sectional view depicting the suture locking mechanism depicted in FIG. 26B in an open position.

FIG. 26D is an exploded view of the bone anchor depicted in FIG. 26A.

FIG. 27A is a perspective view of an embodiment of a bone anchor.

FIG. 27B is a cross-sectional view of the bone anchor depicted in FIG. 27A.

FIG. 27C is an exploded view of the bone anchor depicted in FIG. 27A.

FIG. 28A is a perspective view of an embodiment of a bone anchor.

FIGS. 28B and 28C are cross-sectional views of the bone anchor depicted in FIG. 28A with release elements in the locked and unlocked positions, respectively.

FIG. 28D is an exploded view of the bone anchor depicted in FIG. 28A.

FIG. 29A depicts an embodiment of a bone anchor having a cam with a suture positioned between the cam and a surface at the distal end of the bone anchor.

FIG. 29B is a cross-sectional view of the embodiment depicted in FIG. 29A.

FIG. 29C is a perspective front view of the bone anchor depicted in FIG. 29A.

FIG. 29D is an exploded view of the bone anchor and suture depicted in FIG. 29A.

FIG. 30A depicts an embodiment of a bone anchor having a suture locking assembly.

FIG. 30B is a cross-sectional view of the bone anchor depicted in FIG. 30A.

FIG. 30C is a perspective side view of the bone anchor depicted in FIG. 30A.

FIG. 30D is an exploded view of the bone anchor depicted in FIG. 30A.

Claims

1-31. (canceled)

32. A bone anchor system for coupling tissue to bone comprising: a bone anchor, the bone anchor comprising: a main body configured to be placed in an opening in a bone, the main body comprising a proximal end, a distal end, and a cavity, the cavity comprising an opening at or near the proximal end; anda locking assembly at least partially disposed in the cavity, the locking assembly comprising at least two interacting locking elements; andwherein the locking elements are positionable with respect to each other such that a suture is moveable in a first direction and inhibited from moving in a direction opposite to the first direction.

33. The bone anchor system of claim 32, wherein at least one of the locking elements is moveable in the cavity.

34. The bone anchor system of claim 32, wherein the cavity extends along a longitudinal axis of the bone anchor main body.

35. The bone anchor system of claim 32, further comprising one or more coupling members disposed on the surface of the main body, wherein the coupling members are configured to substantially inhibit the bone anchor from moving out of the opening in the bone.

36. The bone anchor system of claim 32, further comprising an insert coupled to the main body, wherein the cavity is at least partially defined by at least a portion of the main body and at least a portion of the insert.

37. The bone anchor system of claim 32, wherein the locking elements are axially movable with respect to each other.

38. The bone anchor system of claim 32, wherein movement of at least one locking element in an axial direction with respect to the other locking element allows or inhibits movement of the suture.

39. The bone anchor system of claim 32, wherein the locking elements comprise a proximal portion and a distal portion, wherein the distal portions are disposed in the cavity.

40. The bone anchor system of claim 32, wherein the locking elements are substantially parallel to each other.

41. The bone anchor system of claim 32, further comprising a suture coupled to the locking assembly.

42. The bone anchor system of claim 41, wherein at least one end of the suture is coupled to the locking assembly.

43. The bone anchor system of claim 41, wherein the suture comprises a distal loop portion and two proximal end portions, wherein at least one of the proximal end portions is coupled to the locking assembly such that tensioning the proximal end portion in a first direction moves the suture in the first direction, and tensioning the proximal end portion in a direction substantially different from the first direction engages the locking assembly to inhibit movement of the suture.

44. The bone anchor system of claim 41, further comprising a suture puller, wherein the suture puller is configured to thread at least a portion of the suture through the locking assembly.

45. The bone anchor system of claim 32, further comprising an inserter, the inserter being configured to be reversibly coupled to the main body, wherein the inserter is configured to position the main body in an opening in the bone.