SALT LAKE CITY, Sept. 19, 2011 University of Utah engineers who built wireless networks that see through walls now are aiming the technology at a new goal: noninvasively measuring the breathing of surgery patients, adults with sleep apnea and babies at risk of sudden infant death syndrome (SIDS).
Because the technique uses off-the-shelf wireless transceivers similar to those used in home computer networks, "the cost of this system will be cheaper than existing methods of monitoring breathing," says Neal Patwari, senior author of a study of the new method and an assistant professor of electrical engineering.
While he estimates it will be five years until such a product is on the market, Patwari says a network of wireless transceivers around a bed can measure breathing rates and alert someone if breathing stops without any tubes or wires connected to the patient.
"We can use this to increase the safety of people who are under sedation after surgery by knowing if they stop breathing," he says. "We also envision a product that parents put around their baby's crib to alert them if the baby stops breathing. It might be useful for babies at risk of SIDS."
The American Academy of Pediatrics says there is "no evidence that home monitors are effective" for preventing SIDS. Since 2005, the group has opposed the use of breathing monitors to prevent SIDS, but has said they "may be useful in some infants who have had an apparent life-threatening event," including some combination of apnea [abnormal interruptions in breathing], color change, limpness and choking or gagging.
"The AAP recognizes that monitors may be helpful to allow rapid recognition of apnea, airway obstruction, respiratory failure, interruption of supplemental oxygen supply, or failure of mechanical respiratory support," the group states.
In addition to other possible uses, Patwari wants to conduct research with doctors to test his method as an infant-b
|Contact: Lee Siegel|
University of Utah