Results 221 to 230 of about 44,613 (262)

The Mechanical Testing of a Sliding Meniscus Knee Prosthesis*

Clinical Orthopaedics and Related Research, 1978
A 3-component sliding meniscus knee prosthesis was tested mechanically to evaluate the direct loads and the anteroposterior and mediolateral bending moments on the prosthetic components during the loading phase on a pendulum prosthesis testing machine. The bending moments changed with variation of the component positions.
R J, Minns, J, Campbell
openaire   +2 more sources

Finite element modeling of retinal prosthesis mechanics

Journal of Neural Engineering, 2009
Epiretinal prostheses used to treat degenerative retina diseases apply stimulus via an electrode array fixed to the ganglion cell side of the retina. Mechanical pressure applied by these arrays to the retina, both during initial insertion and throughout chronic use, could cause sufficient retinal damage to reduce the device's effectiveness. In order to
B C, Basinger, A P, Rowley, K, Chen, M S, Humayun, J D, Weiland   +4 more
openaire   +2 more sources

Mechanical Failure of the Repiphysis Expandable Prosthesis

The Journal of Bone and Joint Surgery-American Volume, 2010
The current treatment of osteosarcoma includes neoadjuvant chemotherapy followed by wide resection of the tumor and postoperative chemotherapy. While amputation of the extremity was once the mainstay of treatment, medical and surgical developments over the last several decades have led to the success of limb-salvage surgery1,2.
Kathleen S, Beebe, Anthony D, Uglialoro, Neeraj, Patel, Joseph, Benevenia, Francis R, Patterson   +4 more
openaire   +2 more sources

The development of a modular humeral prosthesis locking mechanism

Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, 2001
A new modular humeral prosthesis has been developed, incorporating a novel locking mechanism to prevent head-stem disassembly. A series of test protocols was designed to evaluate the integrity of the new locking mechanism and a dedicated test rig was manufactured.
Fowler, N.K., Nicol, A.C., Marsden, D.C.
openaire   +4 more sources

[Mechanical fatigue of an arterial prosthesis].

Presse medicale (Paris, France : 1983), 1984
This case study reports the analysis of a knitted polyester arterial prosthesis that was implanted in an 18-year old patient for five years following a bicycle accident which injured the left external iliac artery. In spite of the prosthesis, the patient continued to participate in competitive cycling.
M, Batt, M, King, R, Guidoin, O, Goëau-Brissonnière, C, Michetti, M, Marois, C, Gosselin, A, Garton, P, Le Bas   +8 more
openaire   +1 more source

Developments in mechanical heart valve prosthesis

Sadhana, 2003
Artificial heart valves are engineered devices used for replacing diseased or damaged natural valves of the heart. Most commonly used for replacement are mechanical heart valves and biological valves. This paper briefly outlines the evolution, designs employed, materials being used,. and important factors that affect the performance of mechanical heart
Kalyani Nair, C. V. Muraleedharan, G. S. Bhuvaneshwar   +2 more
openaire   +1 more source

Modeling retinal prosthesis mechanics

2015
Degenerative retinal diseases such as Retinitis Pigmentosa and Age-Related Macular Degeneration are, together, one of the leading causes of blindness in the United States. Retinal prostheses bypass the degenerated cells and apply electrical stimulation directly to the visual neural pathway, creating an artificial sensation of sight in subjects with ...
openaire   +1 more source

Magnetorheological Damper Control in a Leg Prosthesis Mechanical

2015
Different models of controllers has proven to be feasible for specific tasks in equipment designed for people with physical disabilities, this paper presents and evaluates the design and simulation of a fuzzy controller for a Magneto-Rheological damper embarked on a Prosthetic Leg Mechanics.
César H. Valencia, Marley M. B. R. Vellasco, Ricardo Tanscheit, Karla T. Figueiredo   +3 more
openaire   +1 more source

[Mechanism of retention of a complete prosthesis].

Revue belge de medecine dentaire, 1991
Patients with full dentures often experience some problems with their dentures, one of them is retention. The retention of a full denture is a result of many factors. Some factors are of a physical nature, others of a physiological nature. The dentist has to take these factors into account while modelling the borders, flanks and basis of the prosthesis.
D, Slop, S, De Borger
openaire   +1 more source

MECHANICAL FAILURE OF A BATEMAN BIPOLAR PROSTHESIS

Orthopedics, 1992
J B, Scarcella, B T, Cohn
openaire   +2 more sources