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Mandibular alveolar bone horizontal distractor

An alveolar bone and mandibular technology, which is applied in the field of mandibular alveolar bone defect repair devices, can solve the problems of difficult vertical distraction osteogenesis, difficulty in meeting clinical needs, and difficulty in consistent alveolar process shape, thereby increasing clinical versatility. , The effect of solving local soft tissue deficiency and facilitating stretch

Pending Publication Date: 2018-02-09
AFFILIATED STOMATOLOGICAL HOSPITAL OF NANJING MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the mandibular alveolar defect has a large range, especially when the mandibular alveolar process is involved across the center of the mandible, vertical distraction ossification is often difficult to achieve smoothly, and the new bone shape formed is also different from the original alveolar process. Difficult to be consistent, and its effect is difficult to meet clinical needs

Method used

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  • Mandibular alveolar bone horizontal distractor
  • Mandibular alveolar bone horizontal distractor
  • Mandibular alveolar bone horizontal distractor

Examples

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Embodiment 1

[0030] Embodiment 1 Mandibular alveolar bone horizontal distractor and steps of use

[0031] combined with Figure 1-7 The structure of the present invention will be described.

[0032] A mandibular alveolar bone horizontal distractor, including a guide rail 1 made of nickel-titanium memory alloy, three fixed titanium plates 3 welded on the guide rail 1 and a movable titanium plate 4; the long side and the wide side of the guide rail are located The side is adapted to the shape of the mandibular alveolar bone, and several holes are evenly arranged along the length direction of the guide rail, and cross bars 13 are formed between the holes; the moving titanium plate is slidably connected to the guide rail through the sliding mechanism 2; the sliding mechanism includes Sliding frame 11 and the screw rod that passes sliding frame, guide rail passes sliding frame, and the part that screw rod is located in sliding frame is connected with the cross bar on the guiding rail by screw ...

Embodiment 2

[0045] Example 2 Clinical Application of Mandibular Alveolar Bone Horizontal Distractor

[0046] The example case is an alveolar bone defect spanning the midline of the mandible, corresponding to the position 33-43 of the mandible, missing teeth at 34 and 35, and the rest of the bone is normal. Utilize the curvature of the remaining mandibular dentition and the plasticity of the guide rail to shape the guide rail close to the cervical margin of the teeth, and fix the two ends of the guide rail to the front edge of the mandibular ramus with fixed titanium plates, and connect the other fixed titanium plate to the end of the mandibular defect . The movable titanium plate can be fixed on the other end of the mandible close to the defect site toward the lower edge of the mandible as needed, and it works together with three fixed titanium plates to fix the entire distractor. The design is located on the left side, which is equivalent to the 34 and 35 alveolar bones, and the reverse...

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Abstract

The invention provides a mandibular alveolar bone horizontal distractor and relates to the field of mandibular alveolar bone defect repair devices. The mandibular alveolar bone horizontal distractor comprises a guide rail made of nickel-titanium memory alloy, at least two fixed titanium plates fixed on the guide rails and at least one moving titanium plate, side faces of long sides and wide sidesof the guide rail are matched with a mandibular alveolar bone in shape, a plurality of holes are uniformly formed in the length direction of the guide rail, and a cross rod is formed among the holes;the moving titanium plate is slidably connected onto the guide rail through a sliding mechanism, the sliding mechanism comprises a sliding frame and a screw penetrating the sliding frame, the guide rail penetrates the sliding frame, and a portion, arranged in the sliding frame, of the screw is in threaded connection with the cross rod on the guide rail. The mandibular alveolar bone horizontal distractor is suitable for wide mandibular alveolar process defect range, especially for mandibul alveolar process in the middle and on two sides of mandible, and can effectively repair moderate to severemandibular alveolar defect.

Description

technical field [0001] The invention relates to the field of instruments for repairing mandibular alveolar bone defect, in particular to a horizontal distractor for mandibular alveolar bone. Background technique [0002] At present, mandibular alveolar bone defect caused by congenital malformation, trauma, or resection of benign and malignant tumors has become one of the more common types of jaw bone defects in clinical practice. Such defects can easily lead to a series of clinical problems such as changes in the appearance of patients, difficulties in denture restoration and retention, and insufficient bone mass to allow implants, which urgently need to be resolved. For small alveolar bone defects, free bone grafting or vascularized bone grafting can be used to repair and reconstruct, but it often leads to insufficient donor site barriers, insufficient soft tissue in the recipient site, and high surgical risks. In addition, for the mandibular alveolar process defect, the v...

Claims

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Application Information

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IPC IPC(8): A61C7/00
CPCA61C7/00
Inventor 程杰葛涵刁鹏飞王琰玲江宏兵王东苗张平吴亚平李中武
Owner AFFILIATED STOMATOLOGICAL HOSPITAL OF NANJING MEDICAL UNIV
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