Patent ID: 9204946
Filing Date: 2015-12-08
Classification: A61C

Abstract:
1. A spray assembly for a droplet spray system for cleaning teeth, comprising: a spray nozzle and a guidance member positioned at a tip end of the nozzle and configured to direct a spray of liquid, wherein the nozzle is completely recessed within the guidance member, wherein the guidance member is in the form of a sphere configured to fit an interproximal area between two adjacent teeth, wherein the guidance member includes a segmented perimeter formed by a plurality of segments that only partially surround the nozzle and are positioned a selected distance away therefrom, wherein the guidance member includes a primary opening through which the spray from the nozzle is directed and includes at least one or more elongated secondary openings that are separated from the primary opening by a portion of the guidance member to allow fluid to escape therethrough, and which are each larger than the primary opening, and which together with the plurality of segments define the segmented perimeter, and wherein the primary opening of the guidance member is located a distance within a range of 1-15 mm from a nozzle opening of the nozzle.