Patent ID: 11951354
Assignee: UNIVERSITY OF CINCINNATI
Field: Furniture, games (Other fields)
Classification: CPC A | IPC A

Claim 7:
8. A method of reducing a subject's respiratory rate compared to the subject's normal respiratory rate comprising the subject placing a rigid hollow device in their mouth and breathing through the rigid hollow device for a period of time, the rigid hollow device having at least one air chamber, at least one opening in the portion of the rigid hollow device that is held in the mouth and at least one additional airflow orifice; wherein the rigid hollow device is configured to be supported by the mouth of the subject without the need for additional support by hands or another device, and further, wherein the subject has a breathing cycle with an exhalation phase and, when the rigid hollow device is in use, it prolongs the exhalation phase of the subject's breathing cycle, additionally, wherein the rigid hollow device has a width and a height, and the width is at least twice the height of the rigid hollow device, and further, wherein the rigid hollow device is a solid molded piece with no additional parts or moving parts and wherein the at least one air chamber has a conical shape and has a volume of at least 3 cubic centimeters.