SinuSys Corporation is a medical device company focused on developing new therapies to improve the sinus health of patients. The company’s first FDA-cleared product, the Vent-Os® Sinus Dilation System, is designed to resolve sinusitis symptoms in a simple, two-step interventional procedure. The device enables gradual dilation of the maxillary sinus ostia, which is designed to maximize patient tolerability of the procedure in an office setting under local anesthesia. Unlike balloon dilation devices that use rapid, high-pressure inflation, the Vent-Os Sinus Dilation System is a small, low-pressure, self-expanding insert designed to gently and gradually open the maxillary ostia. The Vent-Os System incorporates the Company’s proprietary osmotic technology, which utilizes the body’s natural mucosal fluids to expand the insert before removal. In an office setting, patients are comfortably relocated to the waiting room between insertion and removal of the device. The company is currently developing dilation devices for use in the frontal and sphenoid sinus, and the proprietary osmotic self-expanding insert technology can be adapted for other ENT applications.