Modular bone plate and member of such a modular bone plate
AssigneeBiedermann Technologies GmbH & Co. KG
InventorMarkku Biedermann
Life of this patent
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Abstract
A plate member for a modular bone plate includes a top surface forming a top plane, a bottom surface forming a bottom plate, a first connection portion including a first hole with a center axis that intersects the top plane and the bottom plane. The first hole has an edge provided with a first projection and a first groove that extends substantially transverse to the center axis and which is configured to accommodate a projection from another member of the modular bone plate. The first groove has a groove width defined by sidewalls.
Claims22
A member of a modular bone plate, the comprising:
- a top surface defining a top plane;
- a bottom surface defining a bottom plane;
- and
- a first connection portion including a first hole with a center axis that intersects the top plane and the bottom plane, the first hole having an edge,
- wherein a first portion of the edge of the first hole is provided with a first projection forming a first free end of the member and
- wherein a second portion of the edge of the first hole is provided with a first groove that extends substantially transverse to the center axis of the first hole and that is configured to accommodate a second projection of another member of the modular bone plate, the first groove having a groove width defined by sidewalls,
- wherein the first projection and the first groove are arranged on opposite sides from the hole and
- wherein the first projection extends in a projection plane substantially transverse to the center axis of the first hole and wherein the first projection has a projection width in the projection plane that is smaller than a greatest width of the member in said projection plane, and
- wherein the projection width in a circumferential direction around the first hole is less than a half the circumference of the first hole.
A kit for assembling a modular bone plate system, including:
- a) a plurality of first plate members, each first plate member having,
- a top surface defining a top plane,
- a bottom surface defining a bottom plane, and
- a first connection portion including a first hole with a first center axis that intersects the top plane and the bottom plane, the first hole having a first edge,
- wherein a first portion of the first edge of the first hole forms a first free end of the member, and a second portion of the first edge of the first hole is provided with a first groove that extends substantially transverse to the center axis of the first hole, and
- a second connection portion including a second hole with a second center axis that intersects the top plane and the bottom plane, the second hole having a second edge opposite the first edge, the second edge provided with a projection,
- b) a plurality of connector members, each connector member adapted to be insertable into two overlapping first plate members of the plurality of first plate members at the first hole and the second hole of the overlapping first plate members so as to connect two of the plurality of first plate members together, each connector member having a passage and a seat;
- c) a plurality of bone anchors, each bone anchor having a head and a shank for anchoring in bone, the seat of each connector member configured to accommodate the head of the bone anchor and the passage of each connector member has a size for guiding through the shank of the bone anchor;
- and
- d) at least one locking member that is configured to be inserted into one of the plurality of connector members, the locking member configured to be coupled to one of the connectors to prevent backout of a bone anchor.
Dependencies are inferred from the claim text.