نتایج جستجو برای: prostheses

تعداد نتایج: 11092  

Journal: :IOP Conference Series: Materials Science and Engineering 2021

Abstract In recent years, extrusion 3D printing processes have undergone an important development. They allow obtaining complex shapes in easy way and relatively low cost. Different plastic materials can be printed with the fused filament fabrication (FFF) technology. Bioinert ceramics such as alumina or zirconia excellent physical mechanical properties (high melting point, high strength…) that...

Journal: :Thorax 1971
V Marinescu E Păuşescu S Cărnaru

A study was carried out to investigate the biological fate of spongy polyurethane aortic prostheses after a period of implantation of 7 to 10 years in dogs. The present findings indicate that this material is in a sense accepted by the organism (not only tolerated) because almost complete reorganization of the arterial elastic structures inside the prostheses and the formation of arterial branc...

Journal: :Annual review of biomedical engineering 2001
E M Maynard

The development of man-made systems to restore functional vision in the profoundly blind has recently undergone a renaissance that has been fueled by a combination of celebrity and government interest, advances in the field of bioengineering, and successes with existing neuroprosthetic systems. This chapter presents the underlying physiologic principles of artificial vision, discusses three con...

Journal: :Journal of prosthodontics : official journal of the American College of Prosthodontists 2016
Carl Drago

PURPOSE The purpose of this report was to retrospectively evaluate implant and immediate full-arch prosthesis survival rates over a 24-month period; patients were consecutively treated with immediate occlusal loading. Dental arch, gender, and implant orientation (vertical vs. tilted) were also noted. MATERIALS AND METHODS All Brånemark System implants (Nobel Active) and interim, all-acrylic r...

Journal: :Prosthetics and orthotics international 1988
J Stürup H C Thyregod J S Jensen J B Retpen G Boberg E Rasmussen S Jensen

Forty three patients with unilateral traumatic amputations were reviewed as to the use of prostheses and employment consequences of the amputation. Seventeen of 19 below-elbow amputees, and 12 of 24 above-elbow amputees used their prostheses. Non-users compared to users of prostheses were characterized by: 1) Higher level of amputation 2) Non-dominant arm amputation and 3) Younger age at the ti...

2002
Markus Reischl Ralf Mikut Christian Pylatiuk Stefan Schulz

The loss of an arm means drastic reduction of live quality for affected people. To compensate the lost live quality myoelectric hand prostheses have been developed, that can be controlled by muscle contractions in the patients stump. Besides cosmetical aspects the acceptance of these hand prostheses depends on functionality, weight and user-friendliness. Concerning these items, international st...

2014
Rohit Raghavan Deeksha Sharma

Ocular prostheses have a long history of successful use, and variations in the techniques and materials used have been introduced through the years. Advantages such as reduced treatment time and increased simplicity make this method a good alternative to conventional tedious methods of fabricating ocular prostheses. This case report outlines a sequence of steps for construction of cost effectiv...

Journal: :Gruppe. Interaktion. Organisation. Zeitschrift Für Angewandte Organisationspsychologie (gio) 2022

Abstract This contribution of the journal Gruppe. Interaktion. Organisation. (GIO) presents a study on social perception Embodied Digital Technologies (EDTs) and provides initial insights into processes concerning technicality anthropomorphism robots users prostheses. EDTs such as bionic technologies are becoming increasingly common in workspaces private lives, raising questions surrounding the...

2014
Michael R Kasten Aiva M Ievins Chet T Moritz

A neural prosthesis is a device that aims to restore or replace the functions of the nervous system that are lost to disease or injury. Examples include devices to improve hearing, vision, motor and cognitive functions. Neural prostheses artificially stimulate the nervous system to convey sensory information, activate paralysed muscles or modulate the excitability of neural circuits to improve ...

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