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:5/31/2016)... Linda, CA (PRWEB) , ... May 31, 2016 , ... ... both a primary screening tool and as an orthogonal tool for RNAi hit validation. ... highly functional and specific guide RNAs—allows rapid generation of CRISPR RNA (crRNA) collections in ...
(Date:5/31/2016)... Aviv (PRWEB) , ... May 31, 2016 , ... ... the May 4, 2016 Cool Vendors in Security Infrastructure Protection report by Gartner1 ... and publishes a series of research reports evaluating these innovative vendors and their ...
(Date:5/31/2016)... ... May 31, 2016 , ... CURE Media Group , ... has added Cancer and Careers to its Advocacy Spotlight Partnership ... continuing successful careers while fighting cancer. , As partners, both organizations will supply ...
(Date:5/30/2016)... Lake City, Utah (PRWEB) , ... May 30, ... ... insurance reimbursement for small businesses, announced today the publication of an original infographic, ... business owners and health insurance professionals understand how Zane Benefits complies with various ...
(Date:5/29/2016)... Carolina (PRWEB) , ... May 29, 2016 , ... Whole ... via Amazon.com, their new KlipPro KP-240L clipper is available to the public. This is ... which is substantially wider than the average clipper. , Everything about this product is ...
Breaking Medicine News(10 mins):
(Date:5/27/2016)... , May 27, 2016 ... instances of hypertension is driving ambulatory blood pressure monitoring ... their elasticity and their ability to respond to different ... This condition can lead to various cardiovascular disorders such ... vascular disease. These diseases are growing in prevalence each ...
(Date:5/27/2016)... 2016 The healthcare sector is ... companies all falling under its umbrella.  A rather overlooked ... often talked about, these healthcare companies are still trying ... is by far the largest consumer of the ... (OTC: ADMD), Nutranomics Inc. (OTC: NNRX), KollagenX Corp. (OTCQB: ...
(Date:5/26/2016)... 26, 2016   Change Healthcare , ... network solutions and technology-enabled services designed to ... into a strategic channel partnership with SourceMed, ... solutions and revenue cycle management services that ... rehabilitation clinics to optimize revenue, operational efficiency ...
Breaking Medicine Technology: