Lip And Cheek Expander
AssigneeIvoclar Vivadent AG
InventorHorvath Domonkos
Life of this patent
Estimating the term…
Abstract
A covering device for covering the lips and labial angles and for holding the lips, cheeks and labial angles away from the rows of teeth in the mouth of a patient which includes an elastic lip clamping element for external contact with the mouth opening, at least one elastic vestibular clamping element for inserting into the oral vestibule of the mouth of the patient and a film connecting the clamping elements, wherein the clamping elements are arranged along two opposite end regions of the film such that the inserted covering device is open towards the mouth cavity, wherein the vestibular clamping element comprises at least one section which extends in the sagittal direction anterior to the vestibular fold when the covering device is inserted.
Claims4
A covering device for covering the lips and labial angles and for holding the lips, cheeks and labial angles away from the rows of teeth in the mouth of a patient, comprising
- an elastic lip clamping element (110, 210, 310),
- at least one elastic vestibular clamping element (120, 220, 320), and
- a film (130, 230, 330) connecting the clamping elements,
- wherein the clamping elements are arranged along two opposite end regions of the film,
- wherein the clamping elements (110, 210, 310;
- 120, 220, 320) are elastically deformable and span the film (130, 230, 330) in a relaxed state in the form of a ring or tube,
- wherein the vestibular clamping element (120, 220, 320) comprises at least two protrusions or protruding corners (512, 514, 516, 518) which protrude convexly toward the outside compared to a pointed oval (505) or oval, and
- wherein the shape of the vestibular clamping element (520) is incongruent with or geometrically dissimilar to the pointed oval (505) or oval.
Dependencies are inferred from the claim text.