US 12,582,509 B2Granted

Device and method for subgingival measurement

AssigneeLuminx Il Ltd

InventorsBenny Pesach, Ygael Grad, Blanc Zach Lehr, Georgy Melamed

Life of this patent

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Abstract

A method for measuring regions of a tooth in a mouth including: measuring at least one surface point on a surface of the tooth with respect to an element mechanically coupled to said surface point; determining a location of at least one visible reference mechanically coupled to said surface point with respect to said element; estimating a location of said surface point with respect to said visible reference. A device used for such measuring may include a main body comprising a final optical element of an imager which defines an optical field of view directed in a first direction; and a measurement element coupled to said main body extending generally in said first direction; where a tip of said measurement element is sized and shaped to be inserted between a tooth and adjacent gingiva; where said optical field of view is sized to image at least part of a tooth.

Claims24

Dependent claims

A system for measuring pocket depth comprising:

an elongate body having a body longitudinal axis, sized and shaped to be inserted into a human patient's mouth, and comprising:
an elongate measurement element comprising a proximal end and a distal end, said elongate measurement element being connected to said elongate body at said proximal end, said elongate measurement element extending from said elongate body, along a measurement element axis which is different to said body longitudinal axis, said elongate measurement element comprising a tip at said distal end and adapted to be placed between a gingiva and a tooth;
and
an imager with a field of view configured to extend in a direction of said measurement element axis, said imager being positioned near said elongate measurement element so said field of view captures said measurement element from above, in a general direction from said proximal end to said distal end;
and
circuitry configured to analyze an image acquired by said imager and reconstruct a location of said tip when said tip is between said gingiva and the tooth,
thereby measuring sulcus or pocket depth.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/107,974Filed 9 Feb 2023 · continuation
Priority: 24 Dec 2012
Published: US 2023/0181295 A115 Jun 2023
Granted: 24 Mar 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification21 codes

A61C 9/0033
Impression cups, i.e. impression trays; Impression methods: gingival retraction appliances
A61B 1/247
For the mouth, i.e. stomatoscopes, e.g. with tongue depressors; Instruments for opening or keeping open the mouth: with means for viewing areas…
A61C 9/0053
Data acquisition means or methods: optical means or methods, e.g. scanning the teeth by a laser or light beam
A61C 9/006
Optical means or methods, e.g. scanning the teeth by a laser or light beam: projecting one or more stripes or patterns on the teeth

Family

Application61/745,744Us provisional application · filed 24 Dec 2012
PCT/IL2013/051059Parent of this continuation · filed 24 Dec 2013
Application15/274,756Parent of this continuation · filed 23 Sep 2016
US 9,454,846 B2Parent of this continuation · filed 27 Sep 2016
US 2023/0181295 A1Pre-grant publication · published 15 Jun 2023
US 11,602,418 B2Parent of this continuation
Application14/655,286Parent of this continuation
US 2015/0348320 A1Published application
US 2017/0007377 A1Published application
US 12,582,509 B2This patent

From the US filing history. Foreign family members aren’t listed.