US Patent:
20220249212, Aug 11, 2022
Inventors:
- EINDHOVEN, NL
Jason Daniel MILLER - Seattle WA, US
Jay WOLFER - Kirkland WA, US
Le Gia PHAM - Bellevue WA, US
Egbert VAN DE VEEN - Ijsselmuiden, NL
Jose VILLAR - Lake Forest Park WA, US
Aaldert Geert ZIJLSTRA - Zuidlaren, NL
Klaas KOOIJKER - Drachten, NL
International Classification:
A61C 17/02
Abstract:
The present disclosure is directed to mechanisms for oral irrigator fluid channels which provide back flow prevention. The oral irrigator comprises: an irrigator tip; a tether having a first end and a second end, a third channel arranged between the first end and the second end, where the first end of the tether is in fluid communication with the second channel; a reservoir containing a fluid, the reservoir in fluid communication with a pump, the pump in fluid communication with the third channel and the second end of the tether; and an arrowhead check valve comprising a resilient element and an elastic head element, the arrowhead check valve arranged within the first channel, the second channel, or the third channel. The irrigator tip comprises: a nozzle comprising a first channel; and a handle comprising a second channel in fluid communication with the first channel.