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Tag: "implant" at biology news

Emory Eye Center Implants Its First Retinal Chips In Patients With Retinitis Pigmentosa

...ehabilitation Research & Development Center to implant the device in several patients. The patients all have retinitis pigmentosa with moderate-to-severe vision loss. Three centers in the United States have been chosen to conduct the expanded trial. Other than Emory and the VA Rehabilitation R&D Cent...

Ophthalmologists Use Artificial Silicon Retina Microchip To Treat Vision Loss

...sion loss caused by retinitis pigmentosa (RP). The implant is a silicon microchip 2mm in diameter and one-tho...ons then enlarge the pocket opening and insert the implant into the subretinal space. Finally, they reseal the retina over the ASR, insert air into the middle ...

Ophthalmologists implant five patients with artificial silicon retina microchip

...sion loss caused by retinitis pigmentosa (RP). The implant is a silicon microchip 2mm in diameter and one-tho...ons then enlarge the pocket opening and insert the implant into the subretinal space. Finally, they reseal the retina over the ASR, insert air into the middle ...

Artifical cornea lets woman blind 20 years see

...me, such as thinning of the tissue surrounding the implant or the development of glaucoma due to preexisting imperfections in the draining mechanics of the eye, according to Afshari. Infections are always a risk, which is why every patient must adhere to a strict daily regimen of antibiotic eye drops. With ...

UCSD medical/bioengineering reseachers show titanium debris satobtage artificial joints

...leading a team in using nano-technology to improve implant material which has three to five times higher wear resistance and fatigue properties to reduce particle generation from implants. In addition to Sung, additional authors were first author Moon G. Choi, M.D., UCSD Department of Orthopedic Surgery; an...

UI researcher studies deafness in fruit flies, humans

... hearing. He and his graduate student, Sokol Todi, implant electrodes into the antennas of the flies, and record the voltages the receptor cells generate as the flies listen to the love song. By comparing the electrical impulses generated by the normal flies to those generated by myosin VIIA mutant flies, th...

Scripps research scientists identify infertility molecule

...the fertilized egg must become a viable embryo and implant in the uterus. Problems can occur in any one of t...de into an embryo, it must descend to the womb and implant there, where it will grow into a fetus. But the factors that control whether an embryo is able to im...

New defibrillator signals doctor of patient's irregular heartbeat or device malfunction

Loyola first in U.S. to implant new FDA-approved device In a major advance for he...Health System is the first hospital in the U.S. to implant into a patient a new FDA-approved defibrillator which automatically signals the doctor via wireless ...

A new link between stem cells and tumors

...ase ?metastasize ?they wander through the body and implant themselves in new tissues. Specialized cells may die through age or injuries, so the body keeps stocks of stem cells on hand to generate replacements. Usually the stem cell divides into two types: one that is just like the parent, which is kept to m...

Researchers offer proof-of-concept for Altered Nuclear Transfer

...ate genetically altered embryos that are unable to implant in a uterus, and then extract stem cells from thes...centa. In order to create a blastocyst that cannot implant in a uterus, the researchers disabled Cdx2 in mouse cells. They accomplished this with a technique...

New battery technology helps stimulate nerves

...attery technology is lifespan: "If you're going to implant these things, you want a (battery) lifetime of at least 10 years," says West, whose organosilicon batteries are projected to power the tiny implantable devices for more than 12 years. In addition to implantable devices for medicine, lithium batterie...

Sooner is better with cochlear implants, Stanford scientist shows

...0 months old, which indicates that the earlier the implant is done, the better the chances for fully integrat...r children with hearing loss. Children who need an implant would benefit from having it sooner rather than later, the authors conclude in their paper. As a de...

Antibacterial coatings cut infection rates

...n this situation it may be necessary to remove the implant from the infected site, cleanse the wound and undergo replacement surgery within a short time after original implantation, causing significant trauma, especially for the elderly," Professor Griesser said. Catheters can also be a source of bacterial ...

Bioengineers create stable networks of blood vessels

...als are generally highly biocompatible and safe to implant due to the presence of large volumes of water." ...

Carnegie Mellon scientists show brain uses optimal code for sound

...i said. "For instance, if we could use a cochlear implant to 'talk' to the auditory nerve in a more natural way via our discovered coding, then we could quite possibly design implants that would convey sounds to the brain that are much more intelligible," he said. ...

University of Utah to help build bionic arm

...onics inside a leak-proof coating so it is safe to implant in people. As principal investigator for the Utah part of the prosthetic arm program, Clark will oversee the project. He also will participate particularly in preclinical and human studies of the interface device with hand-and-arm surgeon Douglas ...

Both alcoholism and chronic smoking can damage the brain's prefrontal cortex

...onics inside a leak-proof coating so it is safe to implant in people. As principal investigator for the Utah part of the prosthetic arm program, Clark will oversee the project. He also will participate particularly in preclinical and human studies of the interface device with hand-and-arm surgeon Douglas ...

Bioactive cement scaffold may improve bone grafts

...a biopolymer extracted from crustacean shells. The implant is further reinforced to about the same strength as spongy natural bone by covering it with several layers of a biodegradable fiber mesh already used in clinical practice. "Bone cells are very smart," says Hockin Xu, of the ADAF and principal invest...

FDA approves first medical device using rutgers biomaterial

...lacement during the surgical repair and leave less implant material following the resorption of the coating. ... one potentially useful in a wide range of medical implant applications. TyRx has licensed this entire library of polyarylates from Rutgers and has now, as a f...

With cochlear implants, earlier use leads to better speech

...half-year old child, born deaf but with a cochlear implant that partially restored hearing nine months earlie...ntrast, a child of the same age who had a cochlear implant 31 months earlier made more sophisticated statements: "OK, now the people goes to stand there with t...

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