Patent ID: 8568452
Filing Date: 2013-10-29
Classification: A61B,A61F

Abstract:
1. An apparatus for stabilizing a patient's spine, comprising: a plurality of bullets with each bullet having an upper side and a lower side wherein the bullet's upper side is sized and configured to insert into an adjacent bullet's lower side in a manner forming a rod wherein a top bullet is on the top of the rod and a bottom bullet is on the bottom of the rod; an extension spring that resists elongation wherein said extension spring is disposed around and encases the rod and the extension spring is attached to the rod in a manner to resist separation of the individual bullets wherein, upon elongation of the extension spring, the bullets' upper sides withdraw from the adjacent bullets' lower sides allowing the bullets to move and bend in all planes with respect to the adjacent bullets, and wherein the top bullet is attachable to a part of a patient's spine by an attachment means and the bottom bullet is attachable to a second part of the patient's spine by an attachment means; a sleeve of woven material disposed around and encases the extension spring in a manner that provides an elongation limit to the spring wherein the sleeve is in a loose weave pattern when the extension spring is in a resting, non elongated state and upon elongation of the extension spring, the sleeve elongates, tightening the sleeve's woven material resulting in a constricted diameter of the sleeve; and a compression spring disposed around and encases the sleeve of woven material and bullets in a manner to resist compression of the bullets with respect to each other.