After a surgeon stitches up a patient’s abdomen, costly complications — some life-threatening — can occur. To cut down on these postoperative problems, Johns Hopkins undergraduates have invented a disposable suturing tool to guide the placement of stitches and guard against the accidental puncture of internal organs.
Epilepsy affects 50 million people worldwide, but in a third of these cases, medication cannot keep seizures from occurring. One solution is to shoot a short pulse of electricity to the brain to stamp out the seizure just as it begins to erupt. But brain implants designed to do this have run into a stubborn problem: too many false alarms, triggering unneeded treatment. To solve this, Johns Hopkins biomedical engineers have devised new seizure detection software that, in early testing, significantly cuts the number of unneeded pulses of current that an epilepsy patient would receive.