June 9th, 2021

Introducing “Forced Inspiratory Suction and Swallow Tool ” (FISST); a feasible technique in stopping hiccups.

We are introducing the “Forced Inspiratory Suction and Swallow Tool ” ( FISST) as a way with high success in terminating hiccups. In summary, to stop hiccups, you need to forcefully suction the water through a straw that requires a high amount of negative pressure. This high negative pressure can be induced by a valve or a resistance within the straw. This forceful suction requires maximum contraction of the diaphragm muscle by activating the phrenic nerve, which is coming from high cervical vertebrae C3 to C5. After the suction, you should immediately swallow the water. Swallowing requires a complex function of several muscles in the pharynx and larynx, specifically the closure of the epiglottis, to avoid the entrance of water into the trachea. The epiglottis closure is through the vagus nerve activation, which is part of the hiccups cycle.

In summary, FISST simultaneously activates the two main nerves which are responsible for hiccups. And this concurrency stops the vicious cycle between these two nerves. Although most of the physical maneuvers of other remedies stimulate one of these two nerves and muscles, FISST accomplishes both in unison. Prior efforts have attempted either phrenic or vagal nerve stimulation with varying levels of success. FISST has gained more than 90% success in stopping hiccups based on several hundred consumer results, and we hope this new invention brings hope and relieve , especially for patients with chronic hiccups such as cancer patients.