Four-section type mandible molding plate

Abstract

The invention discloses a four-section type mandible molding plate. The molding plate comprises a U-shaped porous titanium plate symmetrical left and right, wherein transplanted bone blocks of two side chins are fixed on the front part of the titanium plate; fibula bone blocks of two side mandible parts are fixed on the middle part of the titanium plate; a mandibular ramus is fixed on the back part of the titanium plate; the four-section type mandible molding plate is the U-shaped 32-hole, 30-hole or 28-hole titanium plate; the titanium plate is divided into two symmetrical titanium plates left and right around the middle line, including a 16-hole titanium plate, a 15-hole titanium plate, or a 14-hole titanium plate; the spacing between two holes is relatively large; densely arranged 8-hole titanium plate, 7-hole titanium plate or 6-hole titanium plate are arranged on the middle part of the titanium plate; and densely arranged 6-hole titanium plate is arranged on the back part of the titanium plate. The four-section type mandible molding plate is a U-shaped rebuilding plate suitable for adult Chinese; the bending of the titanium plate within a plane is reduced, the bending difficulty is lowered, and the tight fit between the rebuilding plate and each transplanted bone block of the mandible can be facilitated; in addition, the spacing between two nail holes in the front part of the titanium plate is relatively large, so that a position is reserved for tooth implantation, surgical steps are simplified, and trauma to a patient is reduced.

Description

technical field [0001] The invention belongs to medical equipment, and more specifically relates to a four-segment mandibular bone forming plate used in oral and maxillofacial reconstructive surgery. Background technique [0002] There are many methods of strong internal fixation for mandibular and fibular reconstruction, and small titanium plates or reconstruction titanium plates are mainly used for internal fixation. [0003] Some studies have selected small titanium plates for fibula fixation, and believed that it has the advantages of great flexibility, easy plasticity, etc., and it fits closely with the fibula (Ou Deming, Wu Ying, Liu Jun, Liao Guiqing, Small titanium plates used in fibula reconstruction mandibular Analysis of clinical curative effect of bone. Journal of Oral and Maxillofacial Surgery, 2015.25(4): p.293-296.), but its disadvantage is insufficient strength, which is not conducive to the repair of longer bone segments. [0004] The reconstruction plate h...

AI Technical Summary

Problems solved by technology

[0003] Some studies have selected small titanium plates for fibula fixation, and believed that it has the advantages of great flexibility, easy plasticity, etc., and it fits closely with the fibula (Ou Deming, Wu Ying, Liu Jun, Liao Guiqing, Small titanium plates used in fibula reconstruction mandibular Analysis of clinical efficacy of bone. Journal of Oral and Maxillofacial Surgery, 2015.25(4):p.293-296.), but its disadvantage is insufficient strength, which is not conducive to the repair of longer bone segments

[0004] The reconstruction plate has good strength, but it is difficult to bend during the operation, and it is difficult to bend out the shape that fits the shape of the bone. Bone gaps are likely to exist, resulting in metal fatigue, which greatly reduces the service life of the reconstruction plate and the effect of repair and reconstruction.

[0005] The 4mm UniLock reconstruction plate (SynthesGmbH, Switzerland) is currently a commonly used implant for strong internal fixation in mandibular reconstruction. This plate has good strength, but it needs to be bent in-plane when used, which may easily lead to deformation of the nail hole and reduce the strength of the titanium plate. It is risky to use, and the strength of the board is high, it is difficult to bend it into a shape that fits the shape of the bone, which is not conducive to beginners' operation

The operation time is greatly shortened, but there are still mismatches during the operation, and it is necessary to configure relevant computer designers, expensive hardware and software equipment, which increases the financial burden of patients and is not conducive to the development of

Images