Patent ID: 9526598
Filing Date: 2016-12-27
CPC Classification: A46B,A61B,A61C,G01N

Claim Text:
1. An electric toothbrush comprising: an oral insertion portion; a body portion containing detection electronics; at least one parameter sensor in electrical communication with the detection electronics for measuring a change in a parameter; a stream probe detection apparatus in the oral insertion portion for detecting the presence of a substance on a dental surface, the detection apparatus comprising: the stream probe detection apparatus configured such that passage of the second fluid through the distal tip of the distal probe portion of the first stream probe and passage of the second fluid through the distal tip of the distal probe portion of the second stream probe enables detection of the substance that may be present on the dental surface based on measurement by the detection electronics of a change in the pressure signal detected by the at least one parameter sensor, correlating to the substance at least partially obstructing the passage of second fluid through the open port of at least one stream probe and confirmation that the substance is not gum tissue, the confirmation effected by comparison by the detection electronics between the measurement of a signal detected by the at least one parameter sensor correlating to a substance at least partially obstructing the passage of fluid through the open port of the distal tip of the distal probe portion of the first stream probe and measurement of a signal detected by the at least one parameter sensor correlating to an object not obstructing the passage of fluid through the open port of the distal tip of the distal probe portion of the second stream probe.