US 10,863,904 B2 · Recording device

Abstract

The invention relates to a recording device (10) comprising a scan head carrier (18) for moving the scan head (20) across a scan area (42) of a cavity, the scan area (42) extending around the scan head (20). A flat or film-like, elastically stretchable material extends between the scan head (20) and the scan area (42), which material can be pressed against the scan area (42) in a balloon (12)-type manner using overpressure. The scan head guide (18) passes through the balloon outlet (16) of the balloon (12) towards the scan head (20). In particular, a control device (44) determines the shape of the cavity (40) against which the material is pressed, from deformation of the material when applying said overpressure. A second extraoral scanning head (43) scans deformations during pressurization of the film-like material.

Claims15

Dependent claims

A recording device arrangement comprising

a first scan head which is mounted on a scan head carrier, the first scan head being designed for scanning an intraoral scan area which extends at least partially around the first scan head, and
a film-like material, wherein the film-like material in the manner of a balloon, deforms when the film-like material is at least partially under pressure and/or adhered to the scan area, and
wherein a second scan head for scanning extraorally is spaced apart from the first scan head for scanning deformations during pressure application to the film-like material, which deformations occur in a substance intraorally or extraorally,
wherein the first scan head is located within the film-like material and the second scan head is located outside the film-like material.

1 more element

Dependencies are inferred from the claim text.

Recording device

Life of this patent

Recording device

Life of this patent

Abstract

Claims15