Patent ID: 7988708

Claim:
An interspinous process distraction device for clamping and distracting an interspinous process and releasing a stressed nerve, comprising: a male distraction element having at least one first clamping portion receiving an interspinous process and a first connecting portion, wherein the first clamping portion and the first connecting portion are respectively connected at two ends of the male distraction element; and a female distraction element having a second clamping portion receiving an interspinous process and a second connecting portion, wherein the second clamping portion and the second connecting portion are respectively located at two ends of the female distraction element, and the second connecting portion is paired and mutually blocked with the first connecting portion and has a rotation space about an axis so that the male distraction device and the female distraction device own an opposite rotation function; said axis extending perpendicular to a plane in which the first clamping portion lies; wherein the first clamping portion of the male distraction element and the second clamping portion of the female distraction element respectively have a trough structure into each of which an interspinous process extends so as to clamp the interspinous process on the spine; and wherein the first clamping portion of the male distraction element and the second clamping portion of the female distraction element have an included angle of 180°, so as to fix the interspinous processes in alignment.