力学与实践 ›› 2018, Vol. 40 ›› Issue (3): 308-313.DOI: 10.6052/1000-0879-17-432

• 应用研究 • 上一篇    下一篇

鼻腔结构异常及其矫正术后气流场改变的数值分析1)

唐媛媛*, 孙秀珍*, 于申, 宿芳*   

  1. *大连医科大学附属第二医院耳鼻咽喉科,辽宁大连116027;
    大连理工大学工业装备结构分析国家重点实验室,工程力学系,辽宁大连116024
  • 收稿日期:2017-12-21 修回日期:2017-12-21 出版日期:2018-06-15 发布日期:2018-07-17
  • 作者简介:2) 唐媛媛,副主任医师。E-mail: tyy 19801221@163.com;3) 孙秀珍,主任医师。E-mail: sunxiuzhen001@163.com

THE NUMERICAL STUDY OF AIRFLOW ALTERATION CAUSED BY NASAL TEXTURAL ANOMALY AND DIORTHOSIS 1)

TANG Yuanyuan*, SUN Xiuzhen*, YU Shen, SU Fang*   

  1. * Department of Otolaryngology Head and Neck Surgery, The Second A±liated Hospital of Dalian Medical University,Dalian 116027, Liaoning, China;
    State Key Laboratory of Structural Analysis for Industrial Equipment, Engineering Mechanics, Dalian University of Technology,Dalian 116024, Liaoning, China
  • Received:2017-12-21 Revised:2017-12-21 Online:2018-06-15 Published:2018-07-17
  • Contact: 1) 国家自然科学基金资助项目(11472074)

摘要:

鼻腔结构的改变将伴随鼻腔空气动力学特性改变,进而促使下鼻甲等发生自适应性变化。选取鼻中隔偏曲患者并行鼻中隔偏曲矫正术,部分行下鼻甲骨折外移术,将术前和术后患者行鼻腔CT 扫描,根据CT数据对鼻腔气道进行表面三维重建,运用计算流体动力学方法分析术前和术后鼻腔气道的空气动力学特征。通过研究发现,鼻腔结构矫正手术不是以双侧鼻腔气道容积对称为目的,而是应将整个鼻腔结构看作一个整体,尽可能地保护鼻腔的\绿化带",最终达到重塑鼻腔结构之目的,使鼻腔的生理功能恢复正常。

关键词:

鼻中隔偏曲|计算流体动力学|气流场|矫正|三维重建

Abstract:

The change of the nasal structure can cause a change of the nasal aerodynamics, then cause a self-adaptation change of the inferior turbinate. A number of patients with nasal septum deviation are chosen to do the diorthosis, some of them with the movement of inferior turbinate bone. CT scanning is carried out for all patients both before and after the surgery, then a three-dimensional reconstruction is done for the nasal airway according to the CT data, to analyze the characteristics of the nasal aerodynamics with the method of the computational fluid dynamics. It is shown that the purpose of the corrective procedure for the nasal structure is not for the bilateral nasal symmetry of the volume,but with the nasal structure as an integral whole, to protect the nasal `green belt', in order to remodel the nasal cavity, and to recover the nasal physiologic function.

Key words:

nasal septum deviation|hydrodynamics|airflow field|rectification|three-dimensional reconstruc-tion

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