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US 2010/0160971 A1Published application
Variable Angle Connection Assembly
AssigneeGlobus Medical, Inc.
InventorsChad Glerum, Michael Harper
Life of this patent
Estimating the term…
Abstract
In a preferred embodiment, the present invention provides a connection assembly that can be used to securely connect a spinal implant to a bone anchor. In particular, the present invention preferably provides a variable angle connection assembly that is able to securely connect the spinal implant to the anchors even when there is a variance in the angle and position of the anchors with respect to the spinal implant. Furthermore, in a preferred embodiment, the present invention provides a connection assembly that will not inadvertently lock the components of the connection assembly preventing the relative movement of the components.
Claims20
A connection assembly for connecting a spinal implant to an anchor, the connection assembly comprising:
- a housing member having a first end and a second end, the housing member having an aperture proximate the first end for receiving a portion of a spinal implant and a channel extending from the second end towards the first end, the channel is in fluid connection with the aperture and oriented generally transversely to the aperture;
- a receiving member having a first end and a second end, the receiving member having an aperture proximate the first end for receiving a portion of an anchor and a lumen extending from the second end towards the first end, the lumen is in fluid communication with the aperture and oriented generally transversely to the aperture, the second end of the receiving member is received in the channel so that the receiving member is rotatably and translatably connected to the housing member;
- and
- an interference member having a first end and a second end, the interference member received in the lumen and translatable in the lumen, the first end of the interference member having an anchor contacting surface.
1 more element
A connection assembly for connecting a spinal implant to an anchor, the connection assembly comprising:
- a housing member having a first end and a second end, the housing member having an aperture proximate the first end for receiving a portion of a spinal implant and a channel extending from the second end towards the first end, the channel is in fluid connection with the aperture and oriented generally transversely to the aperture;
- a receiving member having a first end and a second end, the receiving member having an aperture proximate the first end for receiving a portion of an anchor, a shoulder portion proximate the second end, and a rim portion proximate the second end, the second end of the receiving member is received in the channel so that the receiving member is rotatably and translatably connected to the housing member;
- an annular member having a first face and a second face and at least one projection, the annular member positioned over the shoulder portion of the receiving member and received in the channel;
- a ring member having a first face and a second face, the ring member positioned over the receiving member and received in the channel, the second face of the ring member contacting the shoulder portion;
- and
- a cap member having a lumen for receiving the receiving member and an extension portion, the extension portion of the cap member is received in the channel and contacts the first face of the ring member,
- wherein the channel includes at least one groove for receiving the at least one projection.
4 more elements
A connection assembly for connecting a spinal implant to an anchor, the connection assembly comprising:
- a housing member having a first end and a second end, the housing member having an aperture proximate the first end for receiving a portion of a spinal implant, an opening proximate the first end for receiving a securing member, and a channel extending from the second end towards the first end, the channel is in fluid connection with the aperture and oriented generally transversely to the aperture;
- a receiving member having a first end and a second end, the receiving member having an aperture proximate the first end for receiving a portion of an anchor, a shoulder portion proximate the second end, a rim portion proximate the second end, and a lumen extending from the second end towards the first end, the lumen is in fluid communication with the aperture and oriented generally transversely to the aperture, the second end of the receiving member is received in the channel so that the receiving member is rotatably and translatably connected to the housing member;
- an interference member having a first end and a second end, the interference member received in the lumen and translatable in the lumen, the first end of the interference member having an anchor contacting surface;
- an annular member having a first face and a second face, the annular member positioned over the shoulder portion of the receiving member and received in the channel;
- a ring member having a first face and a second face, the ring member positioned over the receiving member and received in the channel, the second face of the ring member contacting the shoulder portion;
- and
- a cap member having a lumen for receiving the receiving member and an extension portion, the extension portion of the cap member is received in the channel and contacts the first face of the ring member.
4 more elements
Dependencies are inferred from the claim text.