Viscoelastic modelling of the tricuspid valve chordae tendineae tissue

نویسندگان

چکیده

In the present study, mechanical behavior of tricuspid valve (TV) chordae tendineae tissue is investigated experimentally and theoretically. A series uniaxial testing experiments TV conducted its viscoelastic model developed by taking into account initial condition displacement tissue. Our experimental result shows typical J-shaped force-displacement curve corresponding established via a nonlinear spring installed to replace linear generalized Kelvin model. addition, specified arrangements parameters individual element are proposed. The exact solutions under step-wise constant-rate forces analytically derived calibration constants addressed. resulted simulation compared with superior performance proposed creep monotonic loading experiments. Furthermore, sensitivity analysis parameter study performed examine influence conditions andother internal variables on response forces.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Mitral Valve Repair: The Chordae Tendineae

Repair of the mitral valve is the treatment of choice for mitral valve regurgitation when the anatomy is favorable. It is well known that mitral valve repair enjoys better clinical and functional results than any other type of valve substitute. This fact is beyond doubt regardless of the etiology of the valve lesion and is of particular importance in degenerative diseases.This review analyzes t...

متن کامل

Ruptured chordae tendineae of the tricuspid valve due to nonpenetrating trauma. Echocardiographic findings.

A case of traumatic tricuspid insufficiency is presented. In the diagnosis of ruptured chordae tendineae of the tricuspid valve, two-dimensional echocardiography was an essential diagnostic procedure, while M-mode echocardiography showed no specific findings. Ruptured chordae tendineae of the tricuspid valve were confirmed at operation.

متن کامل

Ultrastructure and mechanical properties of chordae tendineae from a myxomatous tricuspid valve.

The ultrastructure and mechanical properties of chordae from a surgically removed myxomatous tricuspid valve were examined. Transmission and scanning electron microscopy showed the internal structure of the abnormal chordae to consist of a loose and relatively sparse network of disorganized collagen fibrils, with no well defined collagen bundles present. The abnormal tissue was found to be more...

متن کامل

Frequency and diameter dependent viscoelastic properties of mitral valve chordae tendineae.

This study aimed to characterise viscoelastic properties of different categories of chordae tendineae over a range of frequencies. Dynamic Mechanical Analysis (DMA) was performed using a materials testing machine. Chordae (n=51) were dissected from seven porcine hearts and categorised as basal, marginal, strut or commissural. Chordae were loaded under a sinusoidally varying tensile load at a ra...

متن کامل

mitral valve repair: the chordae tendineae

repair of the mitral valve is the treatment of choice for mitral valve regurgitation when the anatomy is favorable. it is well known that mitral valve repair enjoys better clinical and functional results than any other type of valve substitute. this fact is beyond doubt regardless of the etiology of the valve lesion and is of particular importance in degenerative diseases. this review analyzes ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Applied Mathematical Modelling

سال: 2022

ISSN: ['1872-8480', '0307-904X']

DOI: https://doi.org/10.1016/j.apm.2021.12.028