Multi-directional distractor

摘要

A mandibular distractor can include an elongated main body having a central longitudinal axis extending in the elongate direction between a first end and a spaced apart second end. A first bone mount can be secured to the main body and a second bone mount can be positioned on the main body. A drive mechanism configured to selectively move the second bone mount longitudinally along the main body can also be included. A third bone mount configured to be moved longitudinally along the main body can also be included.

主权项

1. A mandibular distractor comprising:
an elongated main body defining an internal bore having a central longitudinal axis extending in an elongate direction between a first end having a first opening and a spaced apart second end and the main body having an open slot in communication with the internal bore and extending from the first end to the second end; a screw drive mechanism having an elongate screw drive bolt located within the internal bore of the main body and a coupler protruding from the first open end; a first bone mount having a first bone plate fixedly secured to the first end of the main body and being configured to attach to a first bone portion; a second bone mount including an engaging member that is threadedly coupled with the elongate screw drive bolt in the internal bore and including a second bone plate positioned outside of the main body that is hingedly attached to the engaging member through the open slot, the bone plate being configured to attach to a second bone portion; a third bone mount having a collar freely slidably mounted to the elongated main body, and having a third bone plate mounted to the collar, and being configured when the second bone mount and third bone mount are attached to the second bone portion to move longitudinally along the main body when the second bone mount is moved by the screw drive mechanism; and a curved guide rail attached to the second end of the main body, wherein the collar of the third bone mount is located between the second bond mount and a free end of the curved guide rail.