Featured Research

from universities, journals, and other organizations

Washing Away Painful Wounds

Date:
August 28, 2009
Source:
Tel Aviv University
Summary:
A new device uses a solution to wash away necrotic tissue, bathing a chronic wound while keeping bacteria away.

The Dermastream device, as it will be used for a leg wound.
Credit: Image courtesy of Tel Aviv University

More than six million people in the U.S. suffer from persistent wounds — open sores that never seem to heal or, once apparently healed, return with a vengeance. The bedridden elderly and infirm are prone to painful and dangerous pressure ulcers, and diabetics are susceptible to wounds caused by a lack of blood flow to the extremities.

Related Articles


"The problem is chronic," says Prof. Amihay Freeman of TAU's Department of Molecular Microbiology and Biotechnology. To solve it, he's developed a unique device that uses a solution to whisk away dead tissue, bathing the wound while keeping dangerous bacteria away.

Prof. Freeman's "Dermastream" provides an enzyme-based solution that flows continuously over the wound, offering an alternative treatment to combat a problem for which current treatments are costly and labor-intensive. It could save the American healthcare system millions of dollars a year, and could be in hospitals and doctor's offices soon: Dermastream has passed clinical trials in Israeli hospitals and may be available in the U.S. within the next year, says Prof. Freeman.

Smarter and less painful wound care

Employing a special solution developed at Prof. Freeman's TAU laboratory, Dermastream offers a new approach to chronic wound care, a specialty known as "continuous streaming therapy."

"Our basic idea is simple," says Prof. Freeman. "We treat the wound by streaming a solution in a continuous manner. Traditional methods require wound scraping to remove necrotic tissue. That is expensive, painful and extremely uncomfortable to the patient. And while active ingredients applied with bandages on a wound may work for a couple of hours, after that the wound fights back. The bacteria build up again, creating a tedious and long battle."

Dermastream "flows" under a plastic cover that seals the wound, providing negative pressure that promotes faster healing. The active biological ingredient, delivered in a hypertonic medium, works to heal hard-to-shake chronic wounds. While traditional bandaging methods may take months to become fully effective, Dermastream can heal chronic wounds in weeks, Prof. Freeman says.

Liquid armor to fight bacteria

Dermastream is intended for use in hospitals, nursing homes, outpatient clinics and homecare. Prof. Freeman has founded a company that is currently collaborating with a Veterans Association hospital in Tucson, AZ, to bring the technology to the U.S. market.

Dermastream was an outgrowth of Prof. Freeman's original laboratory research, which investigated the use of enzymes for pharmaceutical applications. Enzymes were previously applied to wounds as ointments, but were slow-acting and required a great deal of time to apply. Coupling the enzymes with a continuous stream of liquid, he unlocked the power of the enzymes in a way that works and makes sense, he says.

"My solution helps doctors regain control of the chronic wound, making management more efficient, and vastly improving the quality of their patients' lives," Prof. Freeman concludes.


Story Source:

The above story is based on materials provided by Tel Aviv University. Note: Materials may be edited for content and length.


Cite This Page:

Tel Aviv University. "Washing Away Painful Wounds." ScienceDaily. ScienceDaily, 28 August 2009. <www.sciencedaily.com/releases/2009/08/090826152601.htm>.
Tel Aviv University. (2009, August 28). Washing Away Painful Wounds. ScienceDaily. Retrieved December 20, 2014 from www.sciencedaily.com/releases/2009/08/090826152601.htm
Tel Aviv University. "Washing Away Painful Wounds." ScienceDaily. www.sciencedaily.com/releases/2009/08/090826152601.htm (accessed December 20, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Saturday, December 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

The Best Tips to Curb Holiday Carbs

The Best Tips to Curb Holiday Carbs

Buzz60 (Dec. 19, 2014) It's hard to resist those delicious but fattening carbs we all crave during the winter months, but there are some ways to stay satisfied without consuming the extra calories. Vanessa Freeman (@VanessaFreeTV) has the details. Video provided by Buzz60
Powered by NewsLook.com
Sierra Leone Bikers Spread the Message to Fight Ebola

Sierra Leone Bikers Spread the Message to Fight Ebola

AFP (Dec. 19, 2014) More than 100 motorcyclists hit the road to spread awareness messages about Ebola. Nearly 7,000 people have now died from the virus, almost all of them in west Africa, according to the World Health Organization. Video provided by AFP
Powered by NewsLook.com
Researchers Test Colombian Village With High Alzheimer's Rates

Researchers Test Colombian Village With High Alzheimer's Rates

AFP (Dec. 19, 2014) In Yarumal, a village in N. Colombia, Alzheimer's has ravaged a disproportionately large number of families. A genetic "curse" that may pave the way for research on how to treat the disease that claims a new victim every four seconds. Duration: 02:42 Video provided by AFP
Powered by NewsLook.com
Double-Amputee Becomes First To Move Two Prosthetic Arms With His Mind

Double-Amputee Becomes First To Move Two Prosthetic Arms With His Mind

Buzz60 (Dec. 19, 2014) A double-amputee makes history by becoming the first person to wear and operate two prosthetic arms using only his mind. Jen Markham has the story. Video provided by Buzz60
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins