Mechanical properties of the Papio anubis tympanic membrane: Change significantly from infancy to adulthood

2018 ◽  
Vol 370 ◽  
pp. 143-154 ◽  
Author(s):  
Junfeng Liang ◽  
Kyle D. Smith ◽  
Hongbing Lu ◽  
Thomas W. Seale ◽  
Rong Z. Gan
Keyword(s):  
Mechanical Properties ◽  
Tympanic Membrane ◽  
Papio Anubis ◽  
Membrane Change

scholarly journals Analysis of the Mechanical Properties of the Human Tympanic Membrane and Its Influence on the Dynamic Behaviour of the Human Hearing System

2018 ◽  
Vol 2018 ◽  
pp. 1-12 ◽  
Author(s):  
L. Caminos ◽  
J. Garcia-Manrique ◽  
A. Lima-Rodriguez ◽  
A. Gonzalez-Herrera
Keyword(s):  
Mechanical Properties ◽  
Tympanic Membrane ◽  
Dynamic Behaviour ◽  
Transmission Mechanism ◽  
Higher Order Modes ◽  
Stiffness Properties ◽  
Human Hearing ◽  
Human Tympanic Membrane ◽  
Qualitative Characteristics ◽  
Hearing System

The difficulty to estimate the mechanical properties of the tympanic membrane (TM) is a limitation to understand the sound transmission mechanism. In this paper, based on finite element calculations, the sensitivity of the human hearing system to these properties is evaluated. The parameters that define the bending stiffness properties of the membrane have been studied, specifically two key parameters: Young’s modulus of the tympanic membrane and the thickness of the eardrum. Additionally, it has been completed with the evaluation of the presence of an initial prestrain inside the TM. Modal analysis is used to study the qualitative characteristics of the TM comparing with vibration patterns obtained by holography. Higher-order modes are shown as a tool to identify these properties. The results show that different combinations of elastic properties and prestrain provide similar responses. The presence of prestrain at the membrane adds more uncertainty, and it is pointed out as a source for the lack of agreement of some previous TM elastic modulus estimations.

Measurement of the Mechanical Properties of the Tympanic Membrane with a Microtension Tester

1990 ◽  
Vol 110 (1-2) ◽  
pp. 85-91 ◽  
Author(s):  
Nobukazu Yamamoto ◽  
Tetsuo Ishii ◽  
Terufumi Machida
Keyword(s):  
Mechanical Properties ◽  
Tympanic Membrane

scholarly journals Mechanical Properties of Baboon Tympanic Membrane from Young to Adult

2020 ◽  
Vol 21 (5) ◽  
pp. 395-407
Author(s):  
Junfeng Liang ◽  
Warren G. Engles ◽  
Kyle D. Smith ◽  
Chenkai Dai ◽  
Rong Z. Gan
Keyword(s):  
Mechanical Properties ◽  
Tympanic Membrane

Computer simulation of human tympanic membrane

1992 ◽  
Vol 106 (10) ◽  
pp. 878-881 ◽  
Author(s):  
Avinash Bhide
Keyword(s):  
Mechanical Properties ◽  
Computer Simulation ◽  
Surface Structure ◽  
Tympanic Membrane ◽  
Middle Ear ◽  
Structural Data ◽  
Human Tympanic Membrane

AbstractBecause of the difficulties in studying the mechanical properties of the human tympanic membrane in situ, structural data from the cadaveric tympanic membrane samples is used for simulation of the surface structure of the tympanic membrane with the help of a computer. The hitherto poorly understood contour of the tympanic membrane is available for the development of a tympanic membrane and middle ear model.

scholarly journals Assessment of Mechanical Properties of Tympanic Membrane by Supersonic Wave Method.

1996 ◽  
Vol 62 (598) ◽  
pp. 2289-2292 ◽  
Author(s):  
Hiroshi WADA ◽  
Norio ONDA ◽  
Kazuhiro DATE ◽  
Toshimitsu KOBAYASHI
Keyword(s):  
Mechanical Properties ◽  
Tympanic Membrane ◽  
Wave Method

Correlation between retractions of the pars flaccida and the pars tensa

1997 ◽  
Vol 111 (4) ◽  
pp. 322-324 ◽  
Author(s):  
Michal Luntz ◽  
Camil Fuchs ◽  
Jacob Sadé
Keyword(s):  
Mechanical Properties ◽  
Tympanic Membrane ◽  
Frequent Occurrence ◽  
Pars Flaccida ◽  
Positive Correlation ◽  
Pars Tensa ◽  
Empirical Probability ◽  
The Way

AbstractRetractions of the pars flaccida (PF) and the pars tensa (PT) were assessed in 250 atelectatic ears in an attempt to find out the way in which the differences in mechanical properties of the two parts of the tympanic membrane are reflected clinically. Retraction of PF was found in 217 ears (86.8 per cent) and retraction of PF in 150 (60 per cent). The concomitant presence of both types of retraction was observed in 117 ears (46.8 per cent) while 133 (53.2 per cent) had only one type, 100 of them (75.1 per cent) PF retraction and 33 (24.9 per cent) PT retraction. When only one type of retraction was present, the empirical probability of having a PF retraction was 75.1 per cent, while the probability of having a PT retraction was only 24.9 per cent. Clinically, the more frequent occurrence of PF retraction in the absence of PT retraction than vice versa reflects the greater collapsibility of the PF. When both types of retractions were present, we found a positive correlation between their severity.

Sign in / Sign up

Export Citation Format

Share Document