Navigation Links
Blocked viens block eye sight

"Occlusions in the retinal vein could not only make you loose your sight but even your eye". The pressure due to blocked veins is so painful that the eye may have to be removed.

Researchers at the Stanford University California have devised a new instrument that uses a plasma to shoot tiny bullets of blockage-dissolving drugs into a clogged vein.//

The tiny blood vessels that supply blood to the retina drain into a single vein. "If this central vein becomes blocked, you get a build up in blood pressure in all the smaller veins" says Forrester, an opthalmologist at the University of Aberdeen.

The pressure makes the small veins rupture and leak, flooding the inner cavity of the eye with blood because of the blockage, blood cant flow into the eye, so the cells in the retina die due to lack of oxygen. Once the retinal cells begin to loose life, they release growth factors to encourage new veins to grow - but they grow in the iris instead of the retina. These large veins that grow in the iris obscures vision and exert painful pressure on the eye.

To treat this condition Stanford researchers Palanker and Flecther have developed a needle-shaped probe that could shoot drugs right at the site of blockage and reopen the vein.

The hollow needle is 1.5 millimetres in diameter and tapers to a point just 50 micrometres across. Inside the needle, a fine wire electrode surronded by a metal sheath is filled in with electrically conductive solution containing a drug.

Palanker found that when 1,000 volts were applied between the electrode and metal sheath, an ultra hot plasma formed at the tip of the electrode producing a rapidly expanding vaporized bubble. By alternating the voltage the bubble could expand and collapse within a millionth of second.

Palanker and Flecther plan to mix a drug called tissue plasminogen activator into the saline solution within the probe. The tip of the probe could be brought near the vein a nd by shooting the drug into the vein it will dissolve the blockage.

Planker stated that the hole made by the bullet will heal quickly. He further stated that the probe has advantages over the other surgical needles as this probe does not damage the vulnerable vein. He now plans to test how good the plasma-powered bullets are at cutting tissue during microsurgery. As lasers tend to damage the surrounding tissues by creating bubbles in local body fluids, the pure saline jet might make even finer cuts without causing stress to the nearby tissue.
'"/>




Related medicine news :

1. Treating Blocked Arteries In The Lower Limbs
2. Operating on a Beating Heart Yields Better Results For Blocked Heart Arteries
3. Aspirin For Treating Blocked Brain Arteries
4. Stressful Work Can Put Men At Risk Of Having Blocked Arteries
5. Laser Used To Clear Blocked Arteries Preventing Amputation
6. Enoxaparin To Become The Standard Treatment During Procedures For Blocked Arteries
7. Study Finds Parkinson’s Cell Death Blocked by Stopping Inflammatory Facto
8. MR Angiography Detects Blocked Arteries Accurately
9. Spirulina may be the next immune boost on the block
10. Angiotensin-II-receptor blockers - Treat kidney failure
11. Re-blockage of heart arteries prevented by vitamins
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/24/2017)... ... March 24, 2017 , ... “The Communion of Saints: A ... God in congregations across the United States. “The Communion of Saints” is ... who has served congregations in seven states throughout his long career of devotion ...
(Date:3/23/2017)... ... 23, 2017 , ... In 2016 the World Health Organization declared the Zika ... million Zika-related cases in the Americas within the next year. Lyme disease is one ... year skyrocketing to an estimated 329,000. Yet, Zika, Lyme and other insect borne illnesses ...
(Date:3/23/2017)... ... ... The physicians of KSF Orthopaedic Center PA are proud to announce the opening ... at 2255 E. Mossy Oaks Rd., Suite 440, Spring, Texas 77389 inside the new ... in the north Houston area (The Woodlands, Conroe, Magnolia, Kingwood, Humble) with an even ...
(Date:3/23/2017)... (PRWEB) , ... March 23, 2017 , ... Texas ... located at 960 Gruene Road in Building 2. The clinic is the group’s second ... Bennett, PT, says opening the company’s second New Braunfels location brings things full circle ...
(Date:3/23/2017)... ... ... The IoT (Internet of Things) is revolutionizing the way the world operates. ... and individual consumers alike. Laboratories can maximize their profit margin by increasing throughput. ... trillion to $11 trillion dollars by the year 2025. McKinsey expects the IoT to ...
Breaking Medicine News(10 mins):
(Date:3/24/2017)... , March 23, 2017  Mirabilis Medical, ... advanced medical technology for non-invasive surgery, announced today ... System for treatment of uterine fibroids throughout the ... had received approval from the US Food and ... the Mirabilis System in the United States.  The ...
(Date:3/23/2017)... Care, based in St. Joseph, Missouri , has selected AccuReg to ... located in 22 cities, and its flagship St. Joseph Medical Center. Mosaic ... health care to its patients, including the insurance, billing and collections processes. ... ... Care St. Joseph Medical Center ...
(Date:3/23/2017)... and INDIANAPOLIS , March ... LLY ) and the William Sansum Diabetes Center ... of Latino people affected by diabetes through enhanced research, ... of diabetes and cardiovascular disease bears a disproportionate weight ... ," said David Kerr , M.D., FRCPE, ...
Breaking Medicine Technology: