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Magnetic system for blood purification

28.05.2009

Blood poisoning is a dangerous disease, especially when the immune system is weakened. And there is only one treatment - to purify the blood from microorganisms that have entered it.

Dr. Jung Win Yang and colleagues from the Boston Children's Hospital came up with an original cleaning system. Its basis is magnetic nanoparticles coated with antibodies to Candida albicans yeast cells.

Magnetic particles are added to the blood and pumped through the microvascular system. In it, the flow of blood meets the flow of saline flowing parallel to it. Due to the peculiarities of microhydrodynamics, these flows are in contact, but do not mix. Under the action of a magnet, the particles with the captured yeast enter the solution and flow away with it. In just one pumping cycle, the blood is cleared by 80%.

According to the calculation, a system of hundreds of such microchannels can purify a child's blood in a few hours. And no ion exchangers, membranes and other blood-damaging devices.

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Successful operation with Google glass 12.11.2013

A team of surgeons from the University of Alabama at Birmingham (USA) performed the first operation using VIPAAR virtual reality technology and Google glass glasses. The combination of these two technologies was an important step towards the development of practical telemedicine.

VIPAAR (Virtual Interactive Presence in Augmented Reality or "Virtual Interactive Presence in Augmented Reality") is a technology developed by scientists at the University of Alabama at Birmingham that allows real-time two-way interactive video conferencing.

Orthopedic surgeon Brent Ponce performed a total shoulder replacement on September 12, 2013 at the University Hospital. During this time, another doctor interacted with him - Phani Dantuluri from his office in Atlanta. Ponce wore Google glass during the operation, and the built-in camera transmitted the image from the operating table to Dr. Dantuluri, who, thanks to VIPAAR, the doctor saw on his monitor what was happening in the operating room in Birmingham. Moreover, he could virtually participate in the operation with his own hands: Dr. Ponce saw Danturuli's virtual "hands" in the monitor of his glasses. That is, thanks to this technology, you can virtually "help" your colleague, showing what actions you need to do with your hands. It looks like the surgeons are close by, not thousands of miles apart. Of course, you can immediately discuss the course of the operation and quickly make a joint decision.

According to the developers, this technology will significantly improve medical care, because now experienced surgeons will be able to virtually help their young colleagues.

VIPAAR owes its existence to Dr. Barton Guthrie, who expressed dissatisfaction with telemedicine about 10 years ago. So-called "telemedicine" is not much different from a simple telephone conversation between two doctors, and in this case the more experienced doctor cannot help his colleague. In the case of using the VIPAAR program, virtual "hands" participate in the operation, show what and how to do. VIPAAR technology allows a remote doctor to see anatomical features, give instructions or even demonstrate the correct placement of instruments. This provides better patient care in any hospital.

The developers note that the use of VIPAAR goes beyond medicine and surgery. The technology will be useful for repair services to fix, for example, the heating system of a house, to maintain the process of industrial production, etc.

It is noted that doctors Ponce and Dantuluri were satisfied with the results of their interactive interaction. Now adjustments need to be made to fine-tune VIPAAR and Google glass, but scientists say the technology could become ubiquitous in a few years, and teleconsultation in medicine will become commonplace.

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