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US 9,387,021 B2Granted
Implant with semi-enclosed screws
AssigneeEbi, LLC
InventorsAnthony C. DeFalco, Rawley Stanhope
Life of this patent
Estimating the term…
Abstract
The present teachings provide an implant. The implant can include an implant body partially defining at least one threaded aperture. The implant can also include a bone fastener including a threaded portion threadably engaged with the at least one threaded aperture. The threaded aperture can circumferentially surround no more than 180° of the bone fastener.
Claims24
An implant comprising:
- an implant body partially defining at least one threaded aperture;
- and
- a bone fastener including a threaded portion threadably engaged with the at least one threaded aperture,
- wherein the at least one threaded aperture circumferentially surrounds no more than 180° of the bone fastener along the entire length of the at least one threaded aperture and includes an open perimeter of at least 180° along the entire length of the at least one threaded aperture, and
- wherein the at least one threaded aperture includes a first threaded aperture extending along a first axis substantially transverse to a longitudinal axis of the implant body and a second threaded aperture extending along a second axis substantially transverse to the longitudinal axis of the implant, the first axis transverse to the second axis.
2 more elements
An implant comprising:
- an implant body partially defining at least one aperture extending along a first axis, the at least one aperture having an open perimeter of at least 180° along the entire length of the at least one aperture and a first plurality of threads, the first plurality of threads including a first axially extending lip;
- and
- a bone fastener including a head having a second plurality of threads threadably engaged with the first plurality of threads of the at least one aperture, the second plurality of threads including a second axially extending lip,
- wherein the first axially extending lip interlocks with the second axially extending lip,
- wherein the implant body includes a first projection extending along a first axis substantially transverse to a longitudinal axis of the implant body, and wherein the at least one aperture extends along the first axis at least partially through the first projection, and
- wherein an interlocking connection between the bone fastener and the at least one aperture prevents displacement of the bone fastener relative to the at least one aperture in a radial direction.
3 more elements
An implant comprising:
- an implant body partially defining at least one aperture having a first interlocking thread form that circumferentially surrounds no more than 180° along the entire length of the at least one aperture, and includes an open perimeter of at least 180° along the entire length of the at least one aperture;
- and
- at least one bone fastener including a head having a second interlocking thread form interlocked and threadably engaged with the first interlocking thread form of the at least one aperture,
- wherein a pitch of the first interlocking thread form is different than a pitch of the second interlocking thread form.
1 more element
Dependencies are inferred from the claim text.