Prostheses

Prostheses

Joy with prostheses


Current Trends In Middle Ear Surgery Ossiculoplasty And Stapedioplasty With Titanium Prostheses

There are 31.70 million (52.84%) persons out of 60 million deaf persons of India suffering due to various types of middle ear diseases like as:

      •  Ø  Otosclerosis

It is defined as abnormal bone growth in the ear, eventually resulting in hearing loss. It can be an inherited disorder, resulting in abnormal hardening of bone in the middle ear and sometimes inner ear. There is 10.19 million (32.14%) out of 31.70 million suffering from otosclerosis diseases in India.  

  • Ø Cholesteatoma

Cholesteatoma is a disease of the ear in which a skin cyst grows into the middle ear and mastoid. There is 6.42 million (20.24%) out of 31.70 million suffering from cholesteatoma diseases in India.

  • Ø Chronic Otitis Media

Otitis media means inflammation of the middle ear. The inflammation occurs as a result of a middle ear infection. It can occur in one or both ears. Otitis media is the most frequent diagnosis recorded for children who visit physicians for illness. There is 12.45 million (39.30%) out of 31.70 million suffering from chronic otitis media diseases in India.

Rest of 2.64 million (8.32%) out of 31.70 million suffering from various other types of middle ear diseases in India.

TREATMENT OF MIDDLE EAR DISEASES

For many years surgical treatment was instituted in middle ear diseases primarily to restore sound conduction, to control infection and to prevent serious complications. Changes in surgical techniques now have made it possible to reconstruct the diseased hearing mechanism in most cases. Various tissue grafts may be used to replace or repair the eardrum. A diseased ear bone may be replaced by middle ear prosthesis. Middle ear diseases can be treated using various types of surgical treatment/procedures like as Ossiculoplasty, Stapedioplasty, and Myringoplasty.

The goal of surgical treatment is better hearing, most typically for conversational speech. Ossiculoplasty/Stapedioplasty surgery is being performed to improve or to maintain the conductive portion of hearing loss. The aim of ossiculoplasty/stapedioplasty surgery is to reconstruct the malfunctioning ossicular chain (chain of three bones i.e. Malleus, Incus & Stapes) in the middle ear cavity. Myringoplasty surgery is performed to ventilate the middle ear, to prevent fluid from building up and to prevent infections in the middle ear cavity. All the above mentioned surgical procedures take about an hour's time and in most cases patients are discharged after 24-36 hours.

During the 1960's in the earliest stage of the development of surgical treatments, attempts were made to use biological materials such as cartilage or the remnants of the ossicular chain to create ossicular replacements. Such materials were termed auto-graft and homo-grafts materials since they were obtained from the person and donor respectively receiving the treatment.

Work in developing superior implant materials was continued until the 1970's, when bioactive materials were developed. Their name comes from their chemical structure, which promotes chemical adhesion between the tissue and the implant, effectively eliminating the need for Auto- and Homo- Grafts.

From 1970 to up till now, various types of material have been using for ossicular chain reconstruction like as Gold, Stainless Steel, Platinum, Hydroxyapatite, Teflon, Polyethylene, Glass Ionomer Cement, and Titanium.

But recently the new trend starts to perform surgery of Ossiculoplasty, Stapedioplasty, and Myringoplasty with Titanium based Middle ear implants. Titanium implants are extensively used in cardiovascular, spinal surgery, orthopedic and dental surgery as well as in reconstructive and plastic surgery.

TITANIUM - THE METAL OF CHOICE

The selection of titanium for implantation is determined by a combination of most favorable characteristics including immunity to corrosion, high bio-compatibility, strength, low modulus and density and the high capacity for joining with bone and other tissue - Osteointegration.

Animal experiments in western countries have revealed that the Titanium may be implanted for an extensive length of time. Histopathological examinations have failed to reveal any cellular changes adjacent to titanium implants. And also careful examinations of tissues adjacent to titanium have revealed neither giant cells nor macrophages, nor any other signs of inflammation. Due to these reasons, Titanium is rapidly becoming the "metal of choice" for many medical applications as well for Ossiculoplasty, Stapedioplasty, and Myringoplasty surgeries.

Also Patients with Titanium medical implants may undergo for MRI-investigations without any significant adverse effects. Titanium fulfills all needs for perfect sound conduction from outer ear to inner ear and also accomplishes all requirements for myringoplasty surgery, is become more favourable material as ear surgical treatments.

Toward Replacement Parts for the Brain: Implantable Biomimetic Electronics as Neural Prostheses (Bradford Books)
Toward Replacement Parts for the Brain: Implantable Biomimetic Electronics as Neural Prostheses (Bradford Books)
List Price: $60.00
Sale Price: $48.35
You save: $11.65 (19%)
  Eligible for free shipping!
Availability: Usually ships in 24 hours
See Reviews For This Product

Description

The continuing development of implantable neural prostheses signals a new era in bioengineering and neuroscience research. This collection of essays outlines current advances in research on the intracranial implantation of devices that can communicate with the brain in order to restore sensory, motor, or cognitive functions. The contributors explore the creation of biologically realistic mathematical models of brain function, the production of microchips that incorporate those models, and the integration of microchip and brain function through neuron-silicon interfaces. Recent developments in understanding the computational and cognitive properties of the brain and rapid advances in biomedical and computer engineering both contribute to this cutting-edge research. The book first examines the development of sensory system prostheses—cochlear, retinal, and visual implants—as the best foundation for considering the extension of neural prostheses to the central brain region. The book then turns to the complexity of neural representations, offering, among other approaches to the topic, one of the few existing theoretical frameworks for modeling the hierarchical organization of neural systems. Next, it examines the challenges of designing and controlling the interface between neurons and silicon, considering the necessity for bidirectional communication and for multiyear duration of the implant. Finally, the book looks at hardware implementations and explores possible ways to achieve the complexity of neural function in hardware, including the use of VLSI and photonic technologies.

Features

  • ISBN13: 9780262025775
  • Condition: USED - Like New
  • Notes: BUY WITH CONFIDENCE, Over one million books sold! 98% Positive feedback. Compare our books, prices and service to the competition. 100% Satisfaction Guaranteed
Imaging of Orthopaedic Fixation Devices and Prostheses
Imaging of Orthopaedic Fixation Devices and Prostheses
List Price: $215.00
Sale Price: $172.00
You save: $43.00 (20%)
  Eligible for free shipping!
Availability: Usually ships in 24 hours
See Reviews For This Product

Description

Written by one of the leading experts in musculoskeletal radiology, this orthopaedic primer familiarizes radiologists with the indications, applications, potential complications, and radiologic evaluation of orthopaedic fixation devices, appliances, and joint prostheses. The book examines the imaging modalities used in the evaluation of orthopaedic fixation devices and prostheses, the clinical and imaging features and normal appearance of these devices, and the imaging features and most appropriate modalities for evaluating complications. More than 1,900 illustrations complement the text. Note: This book is a condensed version of Berquist's Imaging Atlas of Orthopaedic Appliances and Prostheses, which published in 1994.

Prosthodontic Treatment for Edentulous Patients: Complete Dentures and Implant-Supported Prostheses
Prosthodontic Treatment for Edentulous Patients: Complete Dentures and Implant-Supported Prostheses
List Price: $122.00
Sale Price: $96.97
You save: $25.03 (21%)
  Eligible for free shipping!
Availability: Usually ships in 24 hours
See Reviews For This Product

Description

Second author, Charles L. Bolender, is with the Univ. of Washington, Seattle. Resource offers coverage of the function and esthetic implications of edentulism as well as the clinical aspects of diagnosis and treatment. Features every aspect of effective treatment for edentulous patients. Includes current data on implant prosthodontics. Previous edition: c1997.

Implantable Neural Prostheses 2: Techniques and Engineering Approaches (Biological and Medical Physics, Biomedical Engineering)
Implantable Neural Prostheses 2: Techniques and Engineering Approaches (Biological and Medical Physics, Biomedical Engineering)
Sale Price: $159.00
  Eligible for free shipping!
Availability: Usually ships in 24 hours
See Reviews For This Product

Description

This book and its companion volume describe state-of-the-art advances in techniques associated with implantable neural prosthetic devices and their applications. They offer researchers, engineers, clinicians, students, and any specialists in this field a deeper understanding of the neural prosthetic techniques currently available for a wide range of biomedical applications. In part two of this two-volume sequence, Implantable Neural Prostheses: Techniques and Engineering Approaches, the focus is on general techniques, platforms, and engineering approaches in research and development. Coverage includes biocompatibility, electrode materials and testing, electrochemical techniques for neural stimulation applications, thin-film electrode arrays, hermetic and thin-film packaging, and microelectronics for recording, stimulation and wireless telemetry. Also discussed is the design process in the development of medical devices.

Powered Upper Limb Prostheses: Control, Implementation and Clinical Application
Powered Upper Limb Prostheses: Control, Implementation and Clinical Application
Sale Price: $313.45
See Reviews For This Product

Description

Powered Upper Limb Prostheses deals with the concept, implementation and clinical application of utilizing inherent electrical signals within normally innervated residual muscles under voluntary control of an upper limb amputee, amplifying these signals by battery-powered electrical means to make a terminal device, the prosthetic hand, move to perform intended function. The reader is introduced to various facets of upper limb amputations and their clinical management in both children and adults. The authors from Canada, USA and Great Britain are well known practicioners, academics and researchers in the field. The book has over 130 illustrations and contains an extensive bibliography.

Craniofacial Prostheses: Anaplastology and Osseointegration
Craniofacial Prostheses: Anaplastology and Osseointegration
Sale Price: $110.00
  Eligible for free shipping!
Availability: Usually ships in 4 to 6 weeks
See Reviews For This Product

Description

Institute for Applied Biotechnology, Gothenburg, Sweden. Surgical text on the two components of prosthetic craniomaxillofacial rehabilitation. Detailed, color illustrations. 28 contributors, 9 U.S. DNLM: Maxillofacial Prosthesis.

Electroforming in Restorative Dentistry: New Dimensions in Biologically Based Prostheses
Electroforming in Restorative Dentistry: New Dimensions in Biologically Based Prostheses
Sale Price: $189.00
  Eligible for free shipping!
Availability: Usually ships in 24 hours
See Reviews For This Product

Description

Univ. of Basel Dental Center, Switzerland. Translation of the German text, Galvanoprothetikneue Wege zum biologischen Zahnersatz, c1999. Includes high-quality color illustrations. Summarizes the state of the art in the form of an atlas. Uses the points of view of the dentist and the dental technician.

Neural Prostheses for Restoration of Sensory and Motor Function (Frontiers in Neuroscience)
Neural Prostheses for Restoration of Sensory and Motor Function (Frontiers in Neuroscience)
Sale Price: $157.95
  Eligible for free shipping!
Availability: Usually ships in 4 to 6 weeks
See Reviews For This Product

Description

The prospect of interfacing the nervous system with electronic devices to stimulate or record from neural tissue suggests numerous possibilities in the field of neuroprosthetics. While the creation of a "six million dollar man" may still be far into the future, neural prostheses are rapidly becoming viable theories for a broad range of patients with injury or disease of the nervous system. Neural Prostheses for Restoration of Sensory and Motor Function presents a general review of exciting scientific discoveries that show the feasibility of using electronic devices to restore motor function in paralyzed patients. The book is divided into two sections. The first section details some of the most successful sensory and motor prosthetic devices available. It pays particular attention to the present usefulness and future promise of these devices. It explores different approaches to the use of functional electrical stimulation for the restoration of motor control.The second section highlights the growing field of brain-implantable devices for the control of artificial prosthetic devices or neural prosthetics. It considers the possible scientific and clinical advantages of using implanted devices to record signals from the nervous system and the use of those signals for the restoration of neurological function. The book presents research data that relates to the feasibility of using brain-controlled neurorobotic devices. It offers a new perspective on the practice of combining neurochemical and neurophysiological information to create prosthetic control devices that restore chemical balance to the brain. Neural Prostheses for Restoration of Sensory and Motor Function examines several different types of neural prosthetic devices as well as recent advances in research for novel devices to restore sensory and motor function in patients with neural damage. It provides authoritative information on neural prosthetic techniques and applications - specifically in relation to the sensory and motor systems of the brain.

Cochlear Implants: Auditory Prostheses and Electric Hearing (Springer Handbook of Auditory Research) (v. 20)
Cochlear Implants: Auditory Prostheses and Electric Hearing (Springer Handbook of Auditory Research) (v. 20)
List Price: $219.00
Sale Price: $173.76
You save: $45.24 (21%)
  Eligible for free shipping!
Availability: Usually ships in 24 hours
See Reviews For This Product

Description

Cochlear implants have instigated a popular but controversial revolution in the treatment of deafness. This book discusses the physiological bases of using artificial devices to electrically stimulate the brain to interpret sounds. As the first successful device to restore neural function, the cochlear implant serves as a model for research in neuroscience and biomedical engineering. These and other auditory prostheses are discussed in the context of historical treatments, engineering, psychophysics and clinical issues as well as implications for speech, behavior, cognition and long-term effects on people.

Comments are closed.