Despite emergent progress in many fields of bionics, a functional Bionic Voice prosthesis for laryngectomy patients (larynx amputees) has not yet been achieved, leading to a lifetime of vocal disability for these patients. This study introduces a novel framework of Pneumatic Bionic Voice Prostheses as an electronic adaptation of the Pneumatic Artificial Larynx (PAL) device. The PAL is a non-inv...

The archeology team of the Burnt City, supervised by Dr. Seyed Mansour Seyed Sejjadi, made a significant discovery in 2007. In this excavation, they discovered world's oldest artificial eye that belonged to a woman of 28-32 years (1) (Fig. 1-A). The artificial eye, discovered in an ancient grave, was in the left eye socket of the woman. The archeology team estimated the age of the eye between 2...

The hip joint is often affected by diseases that lead to its failure and consequent need of replacement by an artificial joint. In this case, the total hip arthroplasty is the most common medical procedure to substitute the natural joint. The total hip prostheses are available on a wide range of sizes and materials. In this work, it is develop a computational model to compute the contact pressu...

A nine year old girl with a congenital above-elbow amputation was supplied with a myoelectrically controlled arm prosthesis at the Regional Hospital, Orebro, Sweden, in May 1978. The prosthesis was equipped with an artificial hand as well as an elbow joint. The latter was designed at New York University, for switch control but adapted to myoelectric control in the Department of Clinical Neuroph...

A pneumatic simulator of the knee joint with five DOF was developed to determine the correlation between the kinematics of the knee joint, and the wear of the polyethylene componenent of a TKR prosthesis. A physical model of the knee joint with total knee replacement (TKR) was built by rapid-prototyping based on CT images from a patient. A clinically-available prosthesis was mounted on the knee...

OBJECTIVE Evaluate the effects of the improvement of filtration, heating and humidification of inspired air with Cyranose heat and moisture exchanger (HME) on voice quality, breathing, and secretion handling in laryngectomized patients. DESIGN Prospective study. SETTING Fifteen laryngectomized patients, mean age 68, ages ranging from 50 to 91 years. METHODS Information was given to patien...

We investigate the behaviour of a dynamic fluid-structure interaction model of a chorded polyurethane mitral valve prosthesis, focusing on the effects on valve dynamics of including descriptions of the bending stiffnesses of the valve leaflets and artificial chordae tendineae. Each of the chordae is attached at one end to the valve annulus and at the other to one of two chordal attachment point...

Introduction There is no doubt that, since the invention of artificial joint replacement, many thousands of people have enjoyed freedom from disabling pain and immobility. However, this remarkable success story is marred by the incidence of local sepsis following surgery, which can lead to prosthesis loosening and the need for revision surgery. In fact, deep wound infections are the most seriou...

Artificial intelligence (AI) is the data-driven disruptive technology of modern times. AI reforming every field from space science to dentistry. Bio-medical provides various advantages over conventional diagnosis, treatment planning, patient documentation and management. Every implementing for ease both doctors patients. In this present work, review was done implementation in prosthodontics. Pr...

The practice of artificial tracheal prosthesis has been a major challenge to the entire surgical field worldwide until now. The previously applied prosthesis is " inner stent " type, which is unable to heal biologically with native trachea. The newly developed design, the Zhao's artificial trachea, uses a memory alloy mesh combined with traditional operation procedures. Following a 2‑year exper...