Nerve protection guide plate for mandible osteotomy

A neuroprotective and mandibular technology, applied in the fields of medical science, surgery, diagnosis, etc., can solve the problems affecting the quality of life of patients, numbness, and life-threatening patients, so as to reduce the risk of recurrence, avoid skin numbness, and improve the quality of life. Effect

Inactive Publication Date: 2015-09-30
SHANGHAI NINTH PEOPLES HOSPITAL SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method will inevitably lead to nerve damage, and there is a risk of massive intraoperative bleeding, which may threaten the life of the patient in severe cases; secondly, the determination of the osteotomy range during surgery often relies on simple imaging data and the experience of the surgeon. , it may lead to residual lesions and increase the risk of postoperative recurrence; again, after truncation of the inferior alveolar neurovascular bundle, the patient will experience permanent chin and lip skin numbness on the affected side after surgery, and at the same time, the remaining teeth and alveolar bone on the affected side will Serious complications such as denervation, ischemia, inactivation and even necrosis may occur, seriously affecting the quality of life of patients after surgery

Method used

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  • Nerve protection guide plate for mandible osteotomy
  • Nerve protection guide plate for mandible osteotomy
  • Nerve protection guide plate for mandible osteotomy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Such as figure 1 with figure 2 as shown, figure 2 It is a schematic diagram of the design of the osteotomy guide plate 2 for the extraoral approach. The guide plate 2 of this embodiment is attached to the mandibular bone surface as a whole. There are three guide areas 21 on the edge of the guide plate 2. The guide areas 21 at both ends are used to indicate the lesion and the osteotomy range , the arc shape and length of the guide area 21 in the middle match the arc shape and length of the inferior alveolar nerve tube 1 .

[0017] The thickness of the guide plate 2 in this embodiment is 2 mm. The guide area 21 in this embodiment is a shoulder structure with a width of 2.5mm. The guide area 21 indicates the position of the osteotomy line, and can guide the operation of osteotomy and nerve preservation during the extraoral approach.

[0018] This embodiment can be used in the treatment of various benign lesions of the mandible that do not involve the inferior alveola...

Embodiment 2

[0020] Such as figure 1 with image 3 as shown, image 3 Schematic diagram of the design of the osteotomy guide plate 2 for the intraoral approach. There are two guide areas 21 on the edge of the guide plate 2, one guide area 21 is used to indicate the lesion and the osteotomy range, and the arc and length of the other guide area 21 match the arc and length of the inferior alveolar nerve tube 1, the guide plate The thickness of 2 is about 2 mm, and it fits closely with the outer side of the mandible; the guide area 21 is a blade-shaped structure, which indicates the position of the osteotomy line, and can guide the operation of osteotomy and nerve preservation during the intraoral approach. Other implementations are the same as in Example 1.

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Abstract

The invention discloses a nerve protection guide plate for mandible osteotomy. The guide plate is integrally attached to the bone face of the mandible, an arc guide area is arranged on the edge of the guide plate, and the arc and the length of the guide area are matched with the arc and the length of the inferior alveolar nerve canal. The nerve protection guide plate for mandible osteotomy enables osteotomy to be carried out more easily, and is convenient for an operator to operate; osteotomy under guidance of the guide plate allows a mandible diseased region to be cut off precisely along the boundary, residual is avoided, and the risk of postoperative recurrence is effective reduced; osteotomy under guidance of the guide plate can effectively preserve the inferior alveolar neurovascular bundle, the serious complications, such as postoperative affected side chin lip skin numbness, tooth remaining on the affected side lower jaw, nerve loss of alveolar bone and the like, ischemia, inactivation and even necrosis, due to cutting or accidentally injure are avoided, and the postoperative life quality of patients is improved.

Description

technical field [0001] The invention relates to a medical auxiliary device, in particular to a mandibular osteotomy nerve protection guide plate. Background technique [0002] In the treatment of benign lesions of the mandible, the traditional surgery often ignores the preservation of the inferior alveolar neurovascular bundle while resecting the mandibular lesion. Alveolar neurovascular bundle. This method will inevitably lead to nerve damage, and there is a risk of massive intraoperative bleeding, which may threaten the life of the patient in severe cases; secondly, the determination of the osteotomy range during surgery often relies on simple imaging data and the experience of the surgeon. , it may lead to residual lesions and increase the risk of postoperative recurrence; again, after truncation of the inferior alveolar neurovascular bundle, the patient will experience permanent chin and lip skin numbness on the affected side after surgery, and at the same time, the rem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B19/00
Inventor 杨驰黄栋陈敏洁何冬梅张文豪
Owner SHANGHAI NINTH PEOPLES HOSPITAL SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
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