Orthopaedic Helical Coil Fastener and Apparatus and Method for Implantation Thereof
First Claim
1. An implantable orthopaedic device, the device comprising:
- (a) a helical coil having a contracted state, adapted for radial expansion and longitudinal contraction to an expanded state, wherein the helical coil when in the contracted state is adapted for positioning at a target site having walls defining an opening and is operable to radially expand to engage the walls of the opening at the target site in the expanded state; and
(b) the helical coil having an inner surface proximal to the longitudinal axis of the helical coil and an outer surface distal to the longitudinal axis of the helical coil, wherein the inner surface is operable to engage a fastener in the expanded state and wherein the outer surface defines a plurality of teeth extending radially outward to engage the walls of the target site.
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Accused Products
Abstract
Provided herein is an implantable device and an expansion apparatus, method and system for implantation of the implantable device. In some embodiments, the device may include a helical coil having a contracted state, adapted for radial expansion and longitudinal contraction to an expanded state. The helical coil in the contracted state is adapted for positioning at a target site having walls defining an opening and is operable to engage the walls of the opening at said target site in the expanded state. The helical coil may also have an inner surface proximal to the longitudinal axis of the helical coil and an outer surface distal to the longitudinal axis of the helical coil, wherein the inner surface is operable to engage a fastener in the expanded state and wherein the outer surface defines a plurality of teeth extending radially outward to engage the walls of the target site.
90 Citations
37 Claims
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1. An implantable orthopaedic device, the device comprising:
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(a) a helical coil having a contracted state, adapted for radial expansion and longitudinal contraction to an expanded state, wherein the helical coil when in the contracted state is adapted for positioning at a target site having walls defining an opening and is operable to radially expand to engage the walls of the opening at the target site in the expanded state; and (b) the helical coil having an inner surface proximal to the longitudinal axis of the helical coil and an outer surface distal to the longitudinal axis of the helical coil, wherein the inner surface is operable to engage a fastener in the expanded state and wherein the outer surface defines a plurality of teeth extending radially outward to engage the walls of the target site. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 37)
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22-30. -30. (canceled)
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31. A surgical method for helical coil expansion in situ, the method comprising:
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(a) positioning of a helical coil in a contracted state and an expansion tool operably engaging the helical coil at a target site; (b) radially expanding the helical coil to an expanded state with the expansion tool (c) removing the expansion tool; and (d) threadedly engaging the helical coil with a threaded fastener.
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32. A surgical method for helical coil expansion in situ, the method comprising:
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(a) positioning of a helical coil in a contracted state and an expansion tool operably engaging the helical coil at a target site; (b) radially expanding the helical coil to an expanded state with the expansion tool; (c) removing the expansion tool; (d) positioning of a second helical coil in a contracted state and an expansion tool operably engaging the helical coil at a second target site; (e) removing the expansion tool; and (f) threadedly engaging the helical coil with a threaded fastener. - View Dependent Claims (33, 34, 35)
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36. A system for delivering a helical coil in a predrilled opening in a bone, the system comprising:
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(a) at least one helical coil in a contracted state; (b) an expansion tool operably engaging the helical coil to position the helical coil at a target site within the bone and to subsequently radially expand the helical coil to an expanded state allowing for removal of the expansion tool; and (c) a threaded fastener threadedly inserted into the helical coil in the expanded state.
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Specification