Distraction devices and method of assembling the same

摘要

A method of assembling a system for manipulating the skeletal system includes obtaining a monolithic member having opposing ends, one end including a housing having an axially extending cavity. A distraction rod is obtained that has opposing ends, a first end having an inner threaded cavity. A rotatable, radially poled magnet is rotationally coupled to a lead screw having threads. The threads of the lead screw are engaged with the threaded cavity of the distraction rod. The magnet and at least a portion of the first end of the distraction rod are inserted into the axially extending cavity such that the distraction rod and the monolithic member are in coaxial relation to one another. The magnet is axially locked in relation to the monolithic member, wherein the axially locked magnet is capable of rotation. The distraction rod is rotationally locked in relation to the monolithic member.

主权项

1. A method of assembling a system for manipulating portions of the skeletal system of a subject, the method comprising:
obtaining a monolithic member having a first end and a second end, the first end configured for attachment to a first portion of the skeletal system and the second end comprising a housing having an axially extending cavity; obtaining a distraction rod having a first end and a second end, the first end having an inner threaded cavity extending along at least a portion of a length thereof, the first end configured to be coaxial and movable within the axially extending cavity and the second end configured to extend from the axially extending cavity and configured for attachment to a second portion of the skeletal system; rotationally coupling a rotatable, radially poled magnet to a lead screw having threads such that rotation of the magnet causes rotation of the lead screw; engaging the threads of the lead screw with the threaded cavity of the distraction rod; inserting the magnet and at least a portion of the first end of the distraction rod into the axially extending cavity such that the distraction rod and the monolithic member are in coaxial relation to one another; axially locking the magnet in relation to the monolithic member, wherein the axially locked magnet is capable of rotation; and rotationally locking the distraction rod in relation to the monolithic member.