APPARATUS AND METHODS FOR SECURING A BONE IMPLANT

• US 20150012096A1
• Filed: 09/22/2014
• Published: 01/08/2015
• Est. Priority Date: 03/08/2010
• Status: Active Grant

• Current Assignee: Conventus Orthopaedics, Inc.
• Original Assignee: Conventus Orthopaedics, Inc.
• Inventors: Krinke, Todd A., Kruse, Steve D., Taylor, Kyle, Hertel, Stefan J., Brenzel, Michael P., Hindrichs, Paul, Peterson, Alex A.
• Granted Patent: US 9,993,277 B2
• Time in Patent Office: Days
• US Class Current: 623/16.11
• CPC Class Codes: A61B 17/68 Internal fixation devices , including fasteners and spinal fixators, even if a part thereof projects from the skin bone staples A61B17/0642
• CPC Class Codes: A61B 17/8061 specially adapted for particular bones A61B17/70 and A61B17/74 take precedence
• CPC Class Codes: A61B 17/8858 laterally or radially expansible inflatable A61B17/8855
• CPC Class Codes: A61F 2/28 Bones joints A61F2/30

Abstract

Apparatus and methods for securing a bone implant are provided. The implant may be an expandable implant. The implant may be a non-expandable implant. The implant may be for repairing a bone fracture. The implant may be secured to a bone by anchors. The implant may include anchor receiving features. The anchor receiving features may be configured to direct an anchor into cortical bone. The anchor receiving features may be configured to receive an anchor driven through cortical bone. The implant may include bone engaging members configured to engage cancellous bone. An implant may include different profiles. The different profiles may be configured to secure the implant. The profiles may be configured to support the bone. The implant may have different flexing properties configured to position the implant in the bone. The implant may be positioned to receive an anchor driven through an outside of the bone.

Claims

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24. A hub for an expandable bone implant, the implant having a central axis member and a support member, the support member having a first end and a second end that are spaced apart from each other along the central axis member, the support member having a mid-section that is configured to deflect radially away from the central axis member when the implant expands, the hub comprising a support member terminal that is configured to:

fix the second end longitudinally relative to the central axis member during expansion of the implant; and

fix the second end radially relative to the central axis member during the expansion;

wherein the support member terminal includes a clearance notch for the support member so that the second end has an angular range of motion during the expansion.

25. The hub of claim 24 wherein, when the second end includes a tab, the support member terminal further includes an enclosure that is configured to enclose the tab;

wherein the notch traverses the enclosure.

26. The hub of claim 25 wherein the enclosure comprises:

a first enclosure member; and

a second enclosure member that is configured to be separated from the first enclosure member admit the tab into the enclosure.

27. The hub of claim 26 wherein the first enclosure member includes a detent surface that limits the angular range of motion.

28. The hub of claim 27 wherein the detent surface comprises an end of the notch.

29. The hub of claim 26 wherein the second enclosure member includes a detent surface that limits the angular range of motion.

30. The hub of claim 24 wherein the support member terminal is configured to rotate about the central axis member.

31. The hub of claim 24 wherein the support member terminal is rotationally fixed relative to the central axis member.

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