عنوان
پدید آورنده
موضوع
رده
کتابخانه
محل استقرار
شماره کتابشناسی ملی
شماره
TLets681117
عنوان و نام پديدآور
عنوان اصلي
Design and development of a medical device for treatment of proximal interphalangeal joint contracture
نام عام مواد
[Thesis]
نام نخستين پديدآور
Youssef, May Mahmoud Ahmed Abdo
وضعیت نشر و پخش و غیره
نام ناشر، پخش کننده و غيره
University of Birmingham
تاریخ نشرو بخش و غیره
2016
یادداشتهای مربوط به پایان نامه ها
جزئيات پايان نامه و نوع درجه آن
Thesis (Ph.D.)
امتياز متن
2016
یادداشتهای مربوط به خلاصه یا چکیده
متن يادداشت
The proximal Interphalangeal (PIP) joint is vital for hand function. It is frequently affected by contractures as a result of injury or disease. Dynamic external fixators are one of the useful treatment methods of these contractures, enabling the ability to exercise adjacent joints during healing. The aim of this study was a development of the Compass hinge device to present a new design device for the digit PIP joint. A failed Compass hinge external fixator has been analysed. The device consists of polymer parts manufactured from polyetherimide (PEI). Finite element analysis (FEA) was used to investigate the principal stresses in the device under different loading conditions. Scanning electron microscopy (SEM) was used to investigate the fracture surfaces. The FEA showed that the maximum principal stress was greater than the fatigue strength of PEI. The SEM fractographs confirm that failure was by brittle fatigue. A new finger fixator named the PIP joint protractor hinge device comprises 17 parts which are assembled together. The proposed device materials consist of Poly-ether -ether-ketone (PEEK) and stainless steel 316LS. The design was subjected to FEA and a working model was manufactured and subjected to cyclic mechanical testing. The FEA showed that the maximum stress was 242.9 MPa and this was less than the yield strength and the fatigue endurance limits for the selected materials. Mechanical testing showed that testing reached run-out of 170,000 cycles with no cracks or damage visible in the device parts.
موضوع (اسم عام یاعبارت اسمی عام)
موضوع مستند نشده
QP Physiology ; R Medicine (General) ; TJ Mechanical engineering and machinery
نام شخص به منزله سر شناسه - (مسئولیت معنوی درجه اول )
مستند نام اشخاص تاييد نشده
Youssef, May Mahmoud Ahmed Abdo
شناسه افزوده (تنالگان)
مستند نام تنالگان تاييد نشده
University of Birmingham
دسترسی و محل الکترونیکی
نام الکترونيکي
مطالعه متن کتاب وضعیت انتشار
فرمت انتشار
p
اطلاعات رکورد کتابشناسی
نوع ماده
[Thesis]
کد کاربرگه
276903
اطلاعات دسترسی رکورد
سطح دسترسي
a
تكميل شده
Y
