1 day ago

CNN - FAA probes shipment of oxygen generators on Air France

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Oxygen generator Passenger and cargo flights suspected July 29, 1997

Web posted at: 6:56 p.m. EDT (2256 GMT)

WASHINGTON (CNN) -- Officials in the United States and France are investigating how more than 900 undeclared oxygen generators may have been shipped into the United States earlier this year aboard two Air France flights.



Shipments of the generators on passenger planes have been

2 days ago

The Incredibly Beneficial Uses of Portable Oxygen Concentrators

Oxygen therapy is an essential treatment option for patients suffering from a number of respiratory diseases like chronic obstructive pulmonary disease or COPD. Scientists have thought up different ways of solving this problem and have finally come up with two technical solutions for long-term oxygen treatment: portable oxygen concentrators (POC), and liquid oxygen tanks. Long-term oxygen treatment is said to be an oxygen therapy that lasts for more than 15 hours a day.

POCs are machines that provide supplemental oxygen to a patient, by compressing atmospheric air to almost 4 atmospheres of pressure and discarding nitrogen out of this compressed air. This increases the concentration of oxygen in the compressed air. The older versions of these concentrators were bulky and unreliable. However, today's innovative concentrators are smaller in size, more reliable, i.e., they produce between 1 - 6 liters per minute (LPM) of Oxygen, and offer a high level of convenience and mobility. Liquid oxygen and compressed oxygen systems require large cylinders that have to be refilled and stored, or handled with care. However, a POC can be simply plugged into any electrical outlet, including a vehicle DC adapter. They also have rechargeable batteries that may be used when away from a power outlet.

Benefits of POC

Those suffering from a number of health problems might require supplemental oxygen as a part of their treatment protocol. There are essentially three basic methods to receive oxygen, namely through liquid oxygen tanks, compressed oxygen cylinders, and concentrators. The concentrators have a number of uses and benefits, when it comes to issues like the storage, travel, and safety. Here are some of the uses of POC:

Uses: The biggest advantage of a portable oxygen concentrator is its ease of use feature. User-friendly and easy to use, these systems are simply plugged into a basic electrical outlet. Most other systems like liquid oxygen tanks require large tanks, which are very heavy and are not designed to be portable.

Storage Purposes: Unlike compressed and liquid oxygen systems that require large cylinders to be stored in, they are easy to store.

Travel: Some portable concentrators can be plugged into the car's accessory outlet and come with special features like rechargeable batteries. Compressed tanks are not permitted in flights as they are classified as hazardous to life, whereas some concentrators have been approved by the FAA (Federal Aviation Administration).

Delivery: Compressed and liquid oxygen systems tanks need to be refilled from an equipment store. This can be highly inconvenient, as there is a set schedule involved. A concentrator on the other hand, does not require these tanks so there is no need to wait for delivery.

Safety: The pressure that compressed oxygen tanks are under is very high. So, they have to be handled with extreme care all the time. A concentrator does not have any of these safety hazards.

These benefits make a POC a better option than the other systems which involve storage of hazardous tanks at home.

Disclaimer: This Buzzle article is for informative purposes only, and should not be used as a replacement for expert medical advice.

3 days ago

Living with a Portable Oxygen Concentrator

Living with Supplemental Oxygen

It os now more than a decade since my stepfather nearly died from lung failure. As with too many people who stopped smoking some fifteen years before, the damage had been done. After his hospital stay and the begining of his recovery he had to live with lsupplemental oxygen continuously.

The initial period for everyone who must have supplemental oxygen is one of adjustment and this is not an easy time.

The psychological and emotional difficulties are usually much greater than the physical ones, even though people around you will normally focus on those they can see - i.e. the physical ones: the act of breathing, the tubing (cannulas) you u

3 days ago

Oxygen concentrator

From Wikipedia, the free encyclopedia

An oxygen concentrator is a device which concentrates the oxygen from a gas supply (typically ambient air) to supply an oxygen-enriched gas stream.

Contents

1 History

2 How oxygen concentrators work

3 Applications

3.1 Portable oxygen concentrators

3.2 Military uses

3.3 Alternate applications

4 Safety

5 Industrial oxygen concentrators

6 See also

7 Notes

8 External links

History

Home medical oxygen concentrators were invented in the early-1970s. Manufacturing output of these devices increased in the late 1970s. Union Carbide Corporation (UCC) and Bendix

1 week ago

Will I Need Oxygen Therapy?

Each year thousands of individuals in the United States are diagnosed with Chronic Obstructive Pulmonary Disease (COPD), especially cigarette smokers. Many of these individuals will be prescribed oxygen therapy by their physician. As the population of the United States continues to age, more and more people are going to be required to use supplemental oxygen. COPD has several common signs and symptoms to alert individuals that they may have a respiratory problem. Some of the most common COPD warning signs are:

* Dyspnea (shortness of breath)

* Chronic cough

* Wheezing

* Hemoptysis (coughing up blood)

* Ankle swelling

* Unexplained weight loss or weight gain

* Confusion, slurring of speech

* Increasing morning headaches

COPD is a disease that progresses slowly and causes many changes to occur in the lungs. Narrowing of the airways and damage to the lung tissue are common occurrences for COPD patients. As the disease worsens, the lungs performance deteriorates, requiring the need for supplemental oxygen to make up for what your lungs are no longer able to do. COPD related inflammation destroys tissue in the lungs which reduce transportation of oxygen to the cells of the lungs and the transportation of carbon dioxide back out of the cells. The inflammation makes it harder for blood to get into the lungs, lowering the oxygen levels in the blood, which may result in pulmonary hypertension. The symptoms of pulmonary hypertension are shortness of breath, dizziness and fatigue.

If you exhibit some or all of these symptoms, you should see your physician immediately. The primary method used for diagnosing COPD is called spirometry. This procedure is a simple breathing test that measures airflow out of the lungs. If the amount of air you breathe out (forced expiratory volume) is reduced, this is a common diagnosis of COPD. Another method used to test blood oxygen levels is using a blood gas syringe to draw blood from an artery and send the blood through an analyzer to determine the level of oxygen. Although effective, this is a much more invasive procedure than spirometry.

Many patients ask "Will oxygen therapy cure my COPD?" The answer is no. Receiving supplemental oxygen helps your damaged lungs to do what they can no longer manage on their own. Receiving oxygen does not remedy your underlying lung disease. Long-term oxygen therapy should improve your quality of life. You should experience less instances of shortness of breath and feel increased energy levels. Oxygen therapy may also improve mental clarity and kidney function that can be impaired by low levels of oxygen in the blood. The majority of COPD patients are former smokers. If you are a smoker and continue to smoke, you may not benefit much from oxygen therapy.

By: Chuck Jaymes

Article Directory: http://www.articledashboard.com

About the Author - Chuck Jaymes is an indoor air quality professional for

Oxygen Concentrator and

offers reviews and information about

Inogen One Portable Oxygen Concentrators

for OscarAir, Inc.

http://www.articledashboard.com/Article/Will-I-Need-Oxygen-Therapy/233829

1 week ago

Oxygen concentrator

From Wikipedia, the free encyclopedia

An oxygen concentrator is a device which concentrates the oxygen from a gas supply (typically ambient air) to supply an oxygen-enriched gas stream.

Contents

1 History

2 How oxygen concentrators work

3 Applications

3.1 Portable oxygen concentrators

3.2 Military uses

3.3 Alternate applications

4 Safety

5 Industrial oxygen concentrators

6 See also

7 Notes

8 External links

History

Home medical oxygen concentrators were invented in the early-1970s. Manufacturing output of these devices increased in the late 1970s. Union Carbide Corporation (UCC) and Bendix

2 weeks ago

Researchers Develop Transparent Solar Concentrator That Could Cover Windows, Electronics



Scientists at Michigan State University announced this week the creation of a "transparent luminescent solar concentrator" that could turn windows and even cellphone screens into solar-power generators.



This technology could mean that one day entire skyscrapers might be able to generate solar power without blocking out light or ruining tenants' views.

The material works by absorbing light in the invisible spectrum (ultraviolet and near infrared) and then re-emitting it in the infrared. The infrared light is then channeled to the edge of the clear surface, where thin strips of photovoltaic cells generate the power.



Yimu Zhao, a doctoral student in chemical engineering and materials science, and Richard Lunt, assistant professor of chemical engineering and materials science, run a test in Lunt's lab. Lunt and his team have developed a new material that can be placed over windows and create solar energy. Photo by G.L. Kohuth

Because we cannot see infrared or ultraviolet light, the material remains transparent even while concentrating sunlight. Previous luminescent solar concentrators have been developed, but they emitted light in the visible spectrum, creating a stained-glass effect.

"No one wants to sit behind colored glass," Richard Lunt, who leads the lab researching this new technology, said in a press release. He likened the experience to "working in a disco."

The new technology is promising, but needs to be made more efficient. Researchers say that the solar conversion efficiency is around one percent. Ideally, this could be increased to more than five percent. The researchers note that the highest conversion efficiency achieved by a non-transparent luminescent solar concentrator is about seven percent.

According to the National Renewable Energy Laboratory, solar technologies can have efficiencies ranging from eight percent to almost 45 percent, depending on the particular properties desired. A conventional panel like the kind typically installed on home rooftops has an efficiency of around 15 percent.



A transparent luminescent solar concentrator waveguide is shown with colorful traditional luminescent solar concentrators in the background. The new LSC can create solar energy but is not visible on windows or other clear surfaces. Photo by G.L. Kohuth

Luminescent solar concentrators are less efficient than traditional photovoltaics, which absorb a larger range of wavelengths, but http://ecomed.co.za/99-portable-oxygen-concentrators/ they could allow energy harvesting on surfaces that would otherwise never be used to generate power.

Rumors surfaced earlier this year that Apple's iPhone 6 will include a different type of solar screen, but you may not want to get your hopes up just yet. Forbes contributor Nigam Arora wrote in January that the technology is not quite ready. A "screen with a laminate of film containing solar cells is likely in iPhone 7 but not in iPhone 6."

The transparent technology could be used in a variety of applications, Lunt said, and its affordability means it has the potential for eventual commercial or industrial use. "Ultimately we want to make solar harvesting surfaces that you do not even know are there," he said. The researchers' findings were published in the journal Advanced Optical Materials in July.

Photos and captions courtesy of Michigan State University.

CORRECTION: A previous version of this story attributed the innovation to researchers at the University of Michigan.