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US 10,376,286 B2Granted
Fixation device
AssigneeWright Medical Technology, Inc.
InventorKian-Ming Wong
Life of this patent
Estimating the term…
Abstract
A fixation device comprises a first body having a threaded end, a longitudinal axis, and a bore perpendicular to the longitudinal axis. A second body is received in the bore. The second body has an exterior thread and an interior passage for receiving a pin or wire. The second body has a wire locking device for retaining the pin or wire. An advance nut engages the exterior thread. The advance nut abuts the first body for moving the wire locking device away from the first body when the advance nut is turned, for tensioning the pin or wire.
Claims20
A fixation device, comprising:
- a first body having a threaded end, a longitudinal axis and a bore transverse to the longitudinal axis;
- a second body received in the bore, the second body having an exterior thread and an interior passage for receiving a pin or wire;
- a wire locking device for retaining the pin or wire, wherein the wire locking device comprises:
- a locking bolt having a threaded member and a disk shaped bottom portion, the locking bolt threadably received by the second body;
- and
- an outer portion defining a channel and having a bottom surface, the disk shaped bottom portion of the locking bolt received in the channel,
- wherein the locking bolt and the outer portion are configured for translation relative to the interior passage for forcing the pin or wire between the bottom surface and a wall of the interior passage when the locking bolt and the outer portion are advanced;
- and
- an advance nut engaging the exterior thread, the advance nut abutting the first body for moving the wire locking device away from the first body when the advance nut is turned, for tensioning the pin or wire.
6 more elements
An apparatus, comprising:
- a circular fixator having at least one ring;
- and
- a fixation device, including:
- a first body having a threaded end, a longitudinal axis and a bore transverse to the longitudinal axis;
- a second body received in the bore, the second body having an exterior thread and an interior passage for receiving a pin or wire;
- a wire locking device for retaining the pin or wire, wherein the wire locking device comprises:
- a locking bolt having a threaded member and a disk shaped bottom portion, the locking bolt threadably received by the second body;
- and
- an outer portion defining a channel and having a bottom surface, the disk shaped bottom portion of the locking bolt received in the channel,
- wherein the locking bolt and the outer portion are configured for translation relative to the interior passage for forcing the pin or wire between the bottom surface and a wall of the interior passage when the locking bolt and the outer portion are advanced;
- and
- an advance nut engaging the exterior thread, the advance nut abutting the first body for moving the wire locking device away from the first body when the advance nut is turned, for tensioning the pin or wire.
9 more elements
A method comprising:
- fixing a first body of a fixation device to a frame, the first body having a second body of the fixation device slidably received therein, the second body having a threaded portion;
- positioning a nut along the threaded portion of the second body, with the nut abutting the first body;
- inserting a pin or wire that is inserted in a bone of a patient through an interior passage in the second body;
- locking the second body to the pin or wire with a wire locking device, wherein the wire locking device comprises:
- a locking bolt having a threaded member and a disk shaped bottom portion, the locking bolt threadably received by the second body;
- and
- an outer portion defining a channel and having a bottom surface, the disk shaped bottom portion of the locking bolt received in the channel,
- wherein the locking bolt and the outer portion are configured for translation relative to the interior passage for forcing the pin or wire between the bottom surface and a wall of the interior passage when the locking bolt and the outer portion are advanced;
- and
- advancing the nut along the threaded portion of the second body, so as to tension the pin or wire.
7 more elements
Dependencies are inferred from the claim text.