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Image: A smiling male researcher in a white coat is sitting in the lab; Copyright: Georgia Kirkos, McMaster University

'Smart' surfaces help to improve blood-vessel grafts

03.12.2019

Researchers at McMaster University have created a new coating to prevent clotting and infection in synthetic vascular grafts, while also accelerating the body's own process for integrating the grafted vessels.
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Image: Illustration of the nuclear magnetic resonance (NMR) needle in the brain tissue; Copyright: Montage: Martin Vötsch (design-galaxie.de)

Implants: novel sensor improves significance of NMR brain scans

27.11.2019

A team of neuroscientists and electrical engineers developed a highly sensitive implant that enables to probe brain physiology with unparalleled spatial and temporal resolution. Now published in Nature Methods, they introduce an ultra-fine needle with an integrated chip that is capable of detecting and transmitting NMR data from nanoliter volumes of brain oxygen metabolism.
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Image: Man using a machine for producing cells; Copyright: Empa

Bone: dissolving screws

07.11.2019

Where bones fracture, surgeons often have to join the fragments with implants. Magnesium orthopaedic screws, which over time dissolve in the body, spare patients another operation after healing is completed and reduce the risk of infection. To develop optimized alloys and orthopaedic screws with functionalized surfaces, Empa researchers are now investigating magnesium corrosion.
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Image: triple-coaxial cell printing technology to construct biomimetic tissue-engineered blood vessels; Copyright: Gao et al.

Implant: 3D printing, bioinks create blood vessels

24.10.2019

A biomimetic blood vessel was fabricated using a modified 3D cell printing technique and bioinks, which were formulated from smooth muscle cells from a human aorta and endothelial cells from an umbilical vein.
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Image: man driving his car by night; Copyright: panthermedia.net / peshkova

Cataract surgery: more safety on the road

18.10.2019

The ability of cataract surgery to restore sight is well known. People say they're stunned by the vibrancy of color after surgery and the improvement in night vision. Some can even reduce their reliance on glasses. But is it possible to quantify that improved quality of vision?
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Image: a 3d-printer at work; Copyright: panthermedia.net / prescott10

3D printing: new technique for biomaterials

03.10.2019

A new way of 3D printing soft materials such as gels and collagens offers a major step forward in the manufacture of artificial medical implants. Developed by researchers at the University of Birmingham, the technique could be used to print soft biomaterials that could be used to repair defects in the body.
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Image: tissue in a glass container; Copyright: Fraunhofer FEP

Implants: innovative multi-component procedure

25.09.2019

The Fraunhofer FEP has developed a process, called SULEEI, which makes it possible to sterilize and preserve decellularized pericardial tissue by means of photo-initiated ultraviolet crosslinking with low-energy electron irradiation.
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Image: vascular prosthesis for the aorta; Copyright: JOTEC GmbH

Prosthesis: new lease of life thanks to new aorta

20.09.2019

Patients with the rare Loeys-Dietz syndrome suffer from aortic enlargement which may result in sudden over-expansion and a fatal aortic tear. In order to prevent this from happening, an aortic prosthesis must be implanted.
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Image: Leg implants; Copyright: panthermedia.net/ monstArrr

Orthopedic implant: More comfortable thanks to full weight-bearing capacity

08.03.2019

Orthopedic implants – they are a necessity when it comes to congenital or acquired limb length discrepancies. However, full weight-bearing during the limb lengthening process is not feasible with previous implant models. For the first time, the 3D Surgery division at the Medical Center of the University of Munich has succeeded in using an implant that facilitates immediate weight-bearing.
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Image: View over the shoulders of two doctors at a screen showing a model of a heart; Copyright: panthermedia.net/Wavebreakmedia ltd

Regenerative heart valves: from simulation to replacement

23.07.2018

Every year, more than 250,000 patients worldwide receive heart valve implants. Children require repeated replacement surgery because their bodies are still growing, the prosthetic heart valves are not. Regenerative heart valves solve this problem. Until now, we have only been able to monitor how these living implants develop in the body after the fact. Computer models now make this predictable.
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Image: Small brown mole on the back of a hand; Copyright: panthermedia.net/Mario Hahn

Early detection: Tattoo signals cancer – and more

09.07.2018

People who are not ill and do not show any symptoms typically do not visit the doctor. And while most people know that preventive medical checkups for cancer, for example, are important, they still avoid them. They tend to be very hesitant because the doctor might detect a serious illness. In the future, a new type of implant could make it easier to go to a screening test.
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Image: Two hands are holding a tubular frame that is carrying a glistening wet, white tube; Copyright: Leibniz University of Hanover/Institute of Technical Chemistry

Tissue engineering: how to grow a bypass

23.04.2018

A bypass is a complicated structure. It is either made of synthetic materials that can cause blood clots and infections or created by using the patient’s veins. However, the latter often does not yield adequate material. A newly developed bioreactor could solve this problem in the future. It is designed to tissue engineer vascular grafts by using the body’s own material.
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Image: Preview picture of video

Surgical navigation systems – with precision to the destination

06.03.2018

With the help of surgical navigation systems, prostheses or implants can be better inserted. During the procedure, surgeons can see exactly where they need to operate on a screen. Just like a navigation system in the car, navigation in the OR guides you precisely to your destination. At the Uniklinik RWTH Aachen we can find out what advantages this has for physicians and patients.
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Image: Preview picture to the video

High-quality implants and orthopaedic instruments - Interview with GPC Medical Ltd.

16.11.2017

The quality of the implants and orthopaedic instruments used is a fundamental prerequisite for the success of surgical procedures. They have to meet very high international standards. Find out more about the orthopaedic implants and tools of the Indian company GPC Medical Ltd. in our interview.
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Image: Black-and-white picture, with some structures of the human body highlighted in color; Copyright: ARTORG Center for Biomedical Engineering Research, University of Bern

Cochlear implants: safe procedure thanks to surgical robots

22.05.2017

For many years, cochlear implants have restored a sense of hearing in people with certain types of hearing loss. For surgeons, the implantation requires a precise attention to detail under the microscope. The results for the patients improve significantly with a more precise placement of the electrode array. The use of a surgical robot can increase the accuracy of the procedure.
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Image: Computer-generated graphic showing two hip balls next to each other. Implantation of a sleeve is demonstrated on them; Copyright: revomotion GmbH Köln

Hip joint: sleeve versus endoprosthesis

10.04.2017

People with hip osteoarthritis often suffer from severe pain and only an endoprosthesis implantation can provide relief. This involves a major intervention and long-term rehabilitation because the implant requires the removal of a section of the thigh bone. The "MioHIP" research project looks for an elastic alternative.
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Image: Look over the shoulder of an eye surgeon who is operating at a microscope; Copyright: panthermedia.net/mearicon

Ophthalmology today and tomorrow: surgery and more

01.02.2017

Ophthalmology procedures and eye surgeries have been around since ancient times. Today we can hardly imagine the types of circumstances that surrounded any surgical procedures to our perhaps most important sense organ in those days and later eras. Meanwhile, the present and future of this medical specialty looks all the more promising.
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