Patent ID: 11877737
Assignee: ULTRADENT PRODUCTS, INC.
Field: nan (nan)
Classification: CPC nan | IPC A

Claim 13:
14. A frame of a cheek and lip expansion device configured to extend about dental arches of a user, the frame comprising:
an upper frame portion including a first upper side member, a second upper side member, and an upper connecting portion;
a lower frame portion including a first lower side member, a second lower side member, and a lower connecting portion;
a first posterior thickened structure disposed between the first upper side member and the first lower side member, the first posterior thickened structure having an enlarged cross-section relative to adjacent portions of the first upper side member and the first lower side member;
a second posterior thickened structure disposed between the second upper side member and the second lower side member, the second posterior thickened structure having an enlarged cross-section relative to adjacent portions of the second upper side member and the second lower side member; and
a posterior crossbar that connects the first posterior thickened structure and the second posterior thickened structure;
wherein the posterior crossbar comprises a first posteriorly curved member and a second posteriorly curved member; and
wherein a middle portion of the posterior crossbar is anteriorly curved to facilitate inward collapse of the frame from side-to-side as the first posterior thickened structure and the second posterior thickened structure posterior are pressed towards one another.