建立內(nèi)耳宏觀生物力學模型的基礎研究
[Abstract]:Objective:1. With the development of the diagnosis and treatment of the ear diseases, the importance of the precise anatomical structure and the spatial relationship of the inner ear is becoming more and more prominent, and the three-dimensional geometric model of the inner ear can be obtained through continuous slices, and the structure and the state of the bone labyrinth, the membrane labyrinth and the internal and external lymph fluid of the cochlea and the vestibular system can be displayed, To deepen the understanding of the clinician's understanding of the macrostructure of the inner ear. 2. After the three-dimensional reconstruction of the inner ear of the guinea pig, the macroscopic structure of the inner ear under normal conditions was first studied, and then the animal experiment under abnormal condition (such as strong noise) was established. The changes of the inner ear and its future application in the inner ear of the human body in the study of the changes of the inner ear and the future application in the inner ear of the human body. 3. Good command of the technique of frozen continuous slice and the method of computer three-dimensional reconstruction. The research is also an effective clinical tool for the measurement and evaluation of the specific position of the inner ear in the future, and provides the clinical diagnosis and treatment for the inner ear disease. Intuitive analysis platform for future development 4. Based on the geometric parameters of the labyrinth of the vestibular system in the right ear of a healthy volunteer, the three-dimensional reconstruction with the finite element software was used to simulate the vestibular system of the volunteer's sine swing swivel chair. The biomechanical response of the membrane in the labyrinth is helpful to the quantitative understanding of the principle of the balance function of the vestibular system and the clinical application of the vestibular system. The invention provides a platform for quantitative analysis of diagnosis and treatment, and a material and a method thereof. Each room and after the image is processed by the Photoshop, the boundary is identified by the self-designed MATLAB program, the three-dimensional coordinate of the boundary point is obtained, The three-dimensional reconstruction of the inner ear of the guinea pig (including the cochlea, the semicircular canal and the semicircular canal) was obtained by using the finite element software. the three-dimensional geometric model of the membrane structure of the vestibular part) is also used, and the three-dimensional geometric model of the labyrinth of the vestibular system membrane is obtained by three-dimensional reconstruction according to the geometric parameters of the labyrinth of the vestibular system membrane of the right ear of a healthy volunteer according to the same method, and the three-dimensional geometric model of the vestibular system membrane labyrinth is obtained, The internal lymph fluid is described as a non-compressible pseudo-elastic body, which is considered as a large deformation line elastic material, Vestibular system membrane The biomechanical response in the labyrinth. Results:1. A complete set of 2. According to the data provided by the continuous tissue section, the three-dimensional geometric model of the inner ear of the guinea pig, including the cochlea, the vestibule, and the semi-regulated membrane structure, is established, which can reflect the detail of the inner ear of the guinea pig. and 3, the three-dimensional geometric model of the vestibular system membrane of the right ear of the healthy volunteer is numerically simulated, and the deformable part of the vestibular system membrane is deformed to form the top and the inner lymph fluid quasi-elastic body, At the same time, it is subjected to the action of centrifugal force and inertia force, and the deformation movement is generated with respect to the surface of the membrane, so that the nerve electric activity is formed into the vestibule center at all levels, so that the comprehensive reaction is caused, the body balance is maintained, and during the electromechanical conversion, the vestibular system membrane is lost to reflect the acceleration of the biological angle. The property of the degree instrument, the displacement characteristic of the top-top node can be the indirect body. current cilia movement Conclusion:1. The structure of the inner ear, the conventional dissection and the simple slice study can not be used to explain their spatial detail, and it is difficult to ensure the accuracy of the space measurement. the computer three-dimensional reconstruction structure of the slice is not only provided with slices, 2. The frozen section is mainly suitable for morphological observation, and the result is basically the same as that of the soft tissue. The relationship between the contact and the structure of the inner tissue of the worm shaft In that experiment, the three-dimensional structure of the inner ear of the guinea pig was completely construct and clearly shown. The macroscopic structure and state of the membrane labyrinth in the cochlea of the guinea pig and the vestibular system can improve the understanding of the structure of the inner ear by the clinician.4. Numerical simulation of the biomechanical model established based on the right ear geometry of healthy volunteers
【學位授予單位】:大連醫(yī)科大學
【學位級別】:碩士
【學位授予年份】:2010
【分類號】:R764
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