METHOD AND ARRANGEMENT FOR DETERMINING A COMBINED DATA RECORD FOR A MASTICATORY ORGAN TO BE MEASURED

• US 20120224756A1
• Filed: 08/26/2010
• Published: 09/06/2012
• Est. Priority Date: 08/26/2009
• Status: Active Grant

• Current Assignee: Degudent GmbH
• Original Assignee: Degudent GmbH
• Inventors: Ertl, Thomas
• Granted Patent: US 9,453,722 B2
• Time in Patent Office: Days
• US Class Current: 382/131
• CPC Class Codes: A61C 9/00 Impression cups, i.e. impression trays; Impression methods computer-assisted sizing A61C13/0004; instruments for determining occlusion A61C19/05
• CPC Class Codes: A61C 9/0053 Optical means or methods, e.g. scanning the teeth by a laser or light beam
• CPC Class Codes: G01B 11/245 using a plurality of fixed, simultaneously operating transducers G01B11/2408 - G01B11/2425, G01B11/255 take precedence
• CPC Class Codes: G01B 2210/52 Combining or merging partially overlapping images to an overall image

Abstract

A method for determining a combined data record for an object using individual data records based on individual scans of the object, the scans being measured using at least one sensor. To avoid accumulating errors and allow individual data to be rectified or corrected, first partial scans of the object are measured using at least one first sensor and are aligned relative to one another and/or corrected using second partial scans performed by at least two second sensors that are stationary relative to one another, and the individual data records for the combined data record are determined from the aligned and/or corrected partial scans.

Claims

1-20. -20. (canceled)

21. A method for determining a total data set of a chewing organ or area of such an organ, using individual data sets which are based on individual scans of the chewing organ or area of such an organ, which scans are measured with at least one sensor,

wherein, by means of at least one first sensor, overlapping first partial scans of the chewing organ or area thereof are measured;

second partial scans of the chewing organ or area thereof are measured by at least two second sensors which are arranged in a fixed relation,

wherein, from the first partial scan, a total data set is calculated, which represents the chewing organ or the area, and corrected by means of the second partial scans,

or the first partial scans are corrected by means of the second partial scans, and from the corrected partial scans, a total data set representing the chewing organ or the area is calculated.

23. The method according to claim 21 or 22, wherein at least the second and third sensors present individual scan optic systems which are constructed according to the principle of multipoint optical coherence tomography, multiple confocal imaging, or multipoint confocal, with chromatic dispersion.

24. The method according to claim 21 or 22, wherein a CCD, CMOS, InGaAs or PbS sensor is used as sensor.

25. The method according to claim 21 or 22, wherein a miniature camera in the submillimeter range is used as sensor.

26. The method according to claim 21 or 22, wherein the optic system of the at least second and/or third sensor has a confocal design.

27. The method according to claim 21, wherein the second sensors are connected to a holder to form a unit.

29. The method according to claim 21 or 22, wherein the transmission of the data of the sensors originating from the holder is wireless.

30. The method according to claim 21 or 22, wherein the holder with the sensors is covered by a transparent enveloping cover.

31. The method according to claim 21 or 22, wherein the holder with the elements originating therefrom is dimensioned in such a manner that an at least partial introduction into a mouth of a patient occurs.

22. A method for determining a total data set of a chewing organ or area of such an organ, using individual data sets which are based on partial scans of the chewing organ or area thereof, which scans are measured with at least one sensor,

wherein, by means of several sensors arranged in a fixed relation on a holder, in the form of third sensors, partial scans are determined from the individual data sets of which a total data set representing the chewing organ or area thereof is calculated, wherein, during the measurement, the third sensors can be moved in an uncorrelated manner with respect to the chewing organ or area thereof, and wherein an occlusal, vestibular and palatinal/lingual area of at least one area of the chewing organ is scanned simultaneously.

28. The method according to claim 22, wherein an electronic system for merging data streams of the sensors as well as a voltage source is integrated in the holder, besides the sensors, wherein, as a voltage source, a battery with inductive charging capacity is preferably used.

32. A method according to claim 22, wherein the third sensors are arranged in such a manner that the individual scans of said sensors abut against each other without any gap, or mutually overlap at least in sections partially in sections.

33. A device for scanning a chewing organ or an area thereof comprising a holder with several sensors originating therefrom, by means of which the chewing organ or the area is scanned,

wherein the holder presents a three-dimensional geometry for the at least partial enclosure of a jaw area, and in that, in the holder presenting the sensors, an electronic system for merging data determined by the sensors as well as a power source is integrated, wherein the sensors are attached in such a manner to the holder that an occlusal, vestibular and palatinal/lingual area of at least one area of the chewing organ can be scanned simultaneously.

34. The device according to claim 33, wherein the sensor is a sensor from the group of CCD, CMOS, InGaAs, PbS sensor, and a miniature camera in the submillimeter area.

35. The device according to claim 33, wherein the holder presents an inertial system.

36. The device according to claim 33, wherein the holder is provided with a transparent enveloping cover that covers at least the sensors.