Intra vertebral distraction reducer

An intravertebral distraction reducer, comprising a forceps body, wherein the forceps body comprises a first forceps arm and a second forceps arm which are hinged to each other;

• one end of each of the first forceps arm and the second forceps arm is a gripping end, and the other ends of the first forceps arm and the second forceps arm are working ends;
• wherein an outer sleeve is fixedly connected to the working end of the first forceps arm, and an elongated slot is configured to run through the outer sleeve along a radial direction and is also provided along a length direction of the outer sleeve, and the working end of the second forceps arm is inserted into the elongated slot;
• when the second forceps arm is rotated relative to the first forceps arm, the working end of the second forceps arm moves close to or away from the working end of the first forceps arm along the elongated slot;
• and
• an inner rod is received in the outer sleeve, and one end of the inner rod is connected to the working end of the second forceps arm;
• when the working end of the second forceps arm moves close to or away from the working end of the first forceps arm along the elongated slot, the inner rod slides inside the outer sleeve along a longitudinal direction of the outer sleeve;
• the other end of the inner rod extends outside the outer sleeve, and the other end of the inner rod is provided with a distraction ball;
• wherein the distraction ball comprises a sleeve ring, distraction pieces, and a stop block;
• the sleeve ring is slidably received on the inner rod, and the stop block is fixed on the inner rod;
• the sleeve ring is located between the outer sleeve and the stop block;
• the plurality of distraction pieces are fixedly connected between the sleeve ring and the stop block, and the plurality of distraction pieces are arranged circumferentially around the inner rod;
• and when the sleeve ring moves close to the stop block, the distraction pieces are deformed in a protruding manner along a direction away from the inner rod;
• wherein the second forceps arm is rotated relative to the first forceps arm, so that the working end of the second forceps arm moves close to the working end of the first forceps arm along the elongated slot and wherein the inner rod slides towards the inside of the outer sleeve until the sleeve ring of the distraction ball abuts against the outer sleeve and as the inner rod continues to slide towards the inside of the outer sleeve, the sleeve ring is caused to move close to the stop block, so that the distraction ball is in a distracted state, thereby supporting the collapsed fractured vertebral body.