Navigation Links
Lying and sitting more comfortably
Date:12/13/2011

Anyone confined to a wheelchair or a bed has to deal with numerous complications. Frequently, they suffer from bedsores or decubitus ulcers as physicians call them. Bony prominences, such as the sacrum, coccyx and ischium, are especially endangered spots. Unrelieved pressure can lead to tissue necrosis. Damage can extend into the periosteum and, at the worst, into bones themselves. The ulcers are entryways for germs, which can trigger sepsis. While hitherto available passive aids such as air, gel or vacuum cushions relieve pressure, they do not relieve the affected area optimally. Some patients are also unable to actively control the distribution of pressure and alleviate their own suffering. They are dependent on others for help. Personal care assistants or family caregivers must constantly keep an eye out for the formation of pressure ulcers. A newly developed sensor mat will take over this job in the future and thus prevent tissue damage: Researchers at the Fraunhofer Institute for Factory Operation and Automation IFF in Magdeburg are endowing textile cushions with the capability to "feel" by outfitting them with smart sensor systems.

"Every person has a unique build, which must withstand differing compressive loads. Our sensor mat made of ordinary foam and conductive threads automatically detects how a person is sitting or lying, and automatically equalizes the pressure at endangered points by activating an actuator. One hundred measured points on a typical seat suffice to do this," says Martin Woitag, research manager at the Fraunhofer IFF. The trick is that the tactile sensor mat functions based on the principle of a parallel-plate capacitor. Instead of plates, two textile components are employed, which form sensor cells arranged in a matrix. Conductive thread functions as an electrode. Sensor cells are mounted in commercially available foam at intervals of four centimeters. The compression of a single cell varies the voltage and produces an electrical impulse. Measurement electronics connected to the sensor system analyze the data in real time, evaluate them and regulate air cushions located beneath the sensor system. If, for instance, the sensors indicate that the pressure to the rear right is too high, then air is let out of the cushion at that spot the cushioning is modified flexibly and selectively.

While comparable sensor mats already exist, they are so expensive to manufacture that they are unsuitable for the mass market a high resolution sensor mat costs several thousand euros. "Since all the materials we use are inexpensive, we can already produce single items for a few hundred euros," says Woitag. Another advantage is that the weave of the textile employed is breathable and thus prevents moisture buildup. Present systems rely on film technology, which causes sweating.

At around one centimeter, the sensor pad is so thin that it can be integrated in existing applications without any problem. A mat has been prototyped in various shapes and pressure resolutions. First, wheelchair users' lives will be bettered. Then, the researchers intend to test the system in mattresses, too. In addition to the medical field, the experts are setting their sights on other fields of application: Drivers spend long hours behind the wheel and therefore often suffer from back problems. When integrated in truck seats, the sensor mat will provide drivers more comfort and help prevent postural defects. The prototype has already been produced. The researchers have recruited several industry partners, Isringhausen GmbH, warmX GmbH, Rehability GmbH and the Gesellschaft fr Biomechanik Mnster mbH, which are providing them support for their project.


'/>"/>

Contact: Martin Woitag
martin.woitag@iff.fraunhofer.de
49-391-409-0231
Fraunhofer-Gesellschaft
Source:Eurekalert  

Related medicine news :

1. Bullying Moves From Online to Text-Messaging: Study
2. PBX1 identified as a new pioneer factor underlying progression in breast cancer
3. College Students Still Vulnerable to Bullying
4. New Drug Targets Underlying Cause of Cystic Fibrosis
5. National survey will measure how bullying impacts children with autism
6. Making Sure Back to School Doesnt Mean Back to Bullying
7. Some Kids Seem to Cope Better With Bullying
8. Patients underlying health linked to worse outcomes for melanoma, U-M study finds
9. Bullying victims often suffer academically, particularly high achieving blacks and Latinos
10. Bullying Takes Toll on High School Test Scores
11. Cyberbullying a Big Worry for Parents: Survey
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Lying and sitting more comfortably
(Date:6/25/2016)... ... June 25, 2016 , ... ... non-athletes recover from injury. Recently, he has implemented orthobiologic procedures as a method ... —Johnson is one of the first doctors to perform the treatment. Orthobiologics are ...
(Date:6/24/2016)... Los Angeles, CA (PRWEB) , ... June 24, 2016 , ... ... plastic surgery procedures that most people are unfamiliar with. The article goes on to ... known procedures, but also many of these less common operations such as calf and ...
(Date:6/24/2016)... ... , ... Marcy was in a crisis. Her son James, eight, was out of control. Prone ... physically. , “When something upset him, he couldn’t control his emotions,” remembers Marcy. “If ... at my other children and say he was going to kill them. If we ...
(Date:6/24/2016)... ... June 24, 2016 , ... Dr. ... accelerated orthodontic treatment. Dr. Cheng has extensive experience with all areas of orthodontics, ... and accelerated osteogenic orthodontics. , Micro-osteoperforation is a revolutionary adjunct to orthodontic ...
(Date:6/24/2016)... Plano, TX (PRWEB) , ... June 24, 2016 , ... ... taking part in Genome magazine’s Code Talker Award, an essay contest in which patients ... for an award to be presented at the 2016 National Society of Genetic Counselors ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... Tenn. , June 24, 2016  Arkis ... providing less invasive and more durable cerebrospinal fluid ... in funding.  The Series-A funding is led by ... Lighthouse Fund, and other private investors.  Arkis, new ... neurosurgical instrumentation and the market release of its ...
(Date:6/23/2016)... , June 23, 2016 Any dentist who has ... of the current process. Many of them do not even ... technical difficulties and high laboratory costs involved. And those who ... it at such a high cost that the majority of ... Dr. Parsa Zadeh , founder of Dental Evolutions ...
(Date:6/23/2016)... Roche (SIX: RO, ROG; OTCQX: RHHBY) announced ... BRAHMS PCT (procalcitonin) assay as a dedicated testing solution ... this clearance, Roche is the first IVD company in ... sepsis risk assessment and management. PCT is ... levels in blood can aid clinicians in assessing the ...
Breaking Medicine Technology: