The Effect of Prosthesis Design on Vibration of the Reconstructed Ossicular Chain: A Comparative Finite Element Analysis of Four Prostheses

Kelly, Daniel J.; Pj, Prendergast; Aw, Blayney

doi:10.1097/00129492-200301000-00004

Cited by 76 publications

(96 citation statements)

References 14 publications

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“…The geometry of the outer ear canal was determined using magnetic resonance imaging and the geometry of the ossicles was determined using µCT scanning. The material properties, damping, and other attributes of the finite element model are taken partly from Wada et al [45], see Kelly et al [46]. The finite element model of the outer and middle ear was confirmed to behave well by comparing laser Doppler vibrometry measurements of the tympanic membrane with predictions of the model [46].…”

Section: Finite Element Modelingmentioning

confidence: 97%

“…The material properties, damping, and other attributes of the finite element model are taken partly from Wada et al [45], see Kelly et al [46]. The finite element model of the outer and middle ear was confirmed to behave well by comparing laser Doppler vibrometry measurements of the tympanic membrane with predictions of the model [46]. The center of rotation of the malleus/incus complex was calculated and it was found to vary with frequency.…”

Section: Finite Element Modelingmentioning

confidence: 99%

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Prendergast

2002

Meccanica

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Abstract. The musculo-skeletal system serves the mechanical function of creating motion and transmitting loads. It is made up mainly of four components: bone, cartilage, muscle and fibrous connective tissue. These have evolved over millions of years into the complex and diverse shapes of the animal skeleton. The skeleton, however, is not built to a static plan: it can adapt to mechanical forces during growth, it can remodel if the forces change, and it can regenerate if it is damaged. In this paper, the regulation of skeletal construction by mechanical forces is analyzed from both ontogenetic and phylogenetic standpoints. In the first part, models of biomechanical processes that act during skeletal ontogenesis -tissue differentiation and bone remodeling -are presented and, in the second, the evolution of the middle ear is used as an example of biomechanical change in skeletal phylogenesis. Because the constitutive laws for skeletal tissues are relatively well understood, and because the skeleton is preserved in the fossil record, application of mechanics to skeletal evolution seems to present a good opportunity to explore the relationships governing ontogenetic adaptations and phylogenetic change.

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Section: Finite Element Modelingmentioning

confidence: 97%

Section: Finite Element Modelingmentioning

confidence: 99%

Untitled

Prendergast

2002

Meccanica

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“…They connect the tympanic membrane or the malleus to the stapes head or stapes footplate. Results of the middle ear reconstruction are presented in many medical papers [1][2][3][4][5][6][7][8][9][10][11][12]. Meulemans et.al.…”

Section: Introductionmentioning

confidence: 99%

Middle ear vibrations with SMA prosthesis. Experimental research

2018

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Abstract. The paper focuses on experimental research of a middle ear prosthesis made of shape memory alloy. The prosthesis provides better adjustment to individual patient than classical prosthesis. The shape memory prosthesis is implemented to a fresh temporal bone and vibrations of the round window are recorded by means of the Laser Doppler Vibrometer. Finally, the results are presented in the form of transfer function and compared to the intact and damaged middle ear.

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“…Therefore, in this paper a new idea of the prosthesis made of shape memory alloy (SMA) that can change its length to adjust the size to the requirements of the patient is presented. The problem of middle ear reconstruction is often investigated in literature numerically [1,2] and experimentally [3,4,5,6,7]. Our shape memory prosthesis (SMP) design was examined numerically and theoretically in [8,9,10].…”

Section: Introductionmentioning

confidence: 99%