Their research could lead to a device that would restore bladder control for the more than 200,000 Americans living with spinal cord injury or disease-related spinal cord problems
Biomedical engineers at Duke University’s Pratt School of Engineering have demonstrated for the first time that stimulating a specific nerve in the pelvis triggers the process that causes urine to begin flowing out from the bladder, refuting conventional thinking that "bladder emptying" requires signals from the brain. Their research, carried out with animals, could lead to a "bladder pacemaker" to restore bladder control for the more than 200,000 Americans living with spinal cord injury (SCI) or disease-related spinal cord problems.
Neural engineer Warren Grill and biomedical engineering doctoral candidate Joseph Boggs found that applying small electrical currents to the pudendal nerve triggered coordinated contraction of the bladder and relaxation of the urethral sphincter, which controls the bladder’s outlet. The electrical stimulation emptied 65 percent of the bladder’s volume.
Deborah Hill | EurekAlert!
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