Keyword: implants

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Individuals for individuals

Printing 3-D human parts

Everyone is unique – and so is human anatomy. Thus orthopaedics or implantology call for medical products that provide a perfect fit and demand is high for one-off components, or small production runs. At the same time, the materials used and manufacturing standards applied must fulfil extremely stringent quality control. This also holds for specialised surgical instruments and medical devices,…

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Contamination

Painful knee prosthesis: loose, infected or both?

The implantation of knee and hip joints is considered one of the success stories of recent years. But periprosthetic joints infections (PJI) are one of the severe complications, with an infection rate of 2%. The probability of revision surgery increases with concomitant diseases such as rheumatoid arthritis, with fracture prosthesis or after previous surgery.

Antibiotic-loaded bone cement

Reduction of infection risk in femoral head fractures by 66%

Good news for World Antibiotics Day on November 18th. As local substances carriers, antibiotic-loaded bone cements from Heraeus help in the battle against implant-associated infections in orthopaedics and trauma surgery to prevent infection. This is demonstrated by a new randomised study from Great Britain in which the use of double-loaded antibiotic bone cement following femoral head fracture…

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Implants

Screws that fit the body’s notches

Complex bone fractures are often set with titanium or steel screws and plates. However, if these remain in the body for some time, they can cause health problems. A new bioceramic screw nail has the capacity of replacing the currently used metal components. It can be easily introduced into bone and does not have to be removed.

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Brain disorder

Using ultrasound to achieve permeability of blood vessels

CarThera, a French company based at the Brain and Spine Institute (ICM), that designs and develops innovative ultrasound-based medical devices to treat brain disorders, announces the publication on initial successes in disrupting the blood-brain barrier (BBB) with the use of ultrasound. This has been achieved in association with teams from the Assistance Publique-Hôpitaux de Paris (the Greater…

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Mimicking touch

Amputee feels texture with a bionic fingertip

An amputee was able to feel smoothness and roughness in real-time with an artificial fingertip that was surgically connected to nerves in his upper arm. Moreover, the nerves of non-amputees can also be stimulated to feel roughness, without the need of surgery, meaning that prosthetic touch for amputees can now be developed and safely tested on intact individuals.

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Implants

Using 'Pacemakers' in spinal cord injuries

Researchers from Charité – Universitätsmedizin Berlin and EPFL, Lausanne have succeeded in restoring motor function following spinal cord injury. The researchers were able to show that coordinated muscle movement is the result of alternating activation patterns emanating from the spinal cord. Newly-developed implants, which use electrical stimulation to mimic these signals, were used to…

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Arthritis

Modular partial wrist implant may help with pain

Studies are underway to determine if a new modular partial wrist replacement will allow for better movement and last longer than traditional implants for people seeking relief from painful wrist arthritis. Although current options such as total wrist replacement and wrist fusion can alleviate pain, patients are often limited in performing certain activities after surgery.

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Neurology

Improved brain implants

By implanting electrodes in the brain tissue one can stimulate or capture signals from different areas of the brain. These types of brain implants, or neuro-prostheses as they are sometimes called, are used to treat Parkinson's disease and other neurological diseases.

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Printing implants with the laser

Whether for individual micro-implants or for micro-implants with medicine depots – additive processes are ideally suited for manufacturing such components. In the project “REMEDIS”, scientists at the Laser Zentrum Hannover e.V. (LZH) have established a highly automated laser melting process to produce or coat implants made of platinum, nickel-titanium (NiTi) or stainless steel.

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Cardiac resynchronisation

This summer the world’s first implantations of Biotronik’s new ICD and CRT-D series (implantable cardioverter-defibrillators and cardiac resynchronisation therapy defibrillators) took place at the Spedali Civili Hospital, Brescia, Italy.

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