IP Library Granted Patent US 12,440,317
Granted Patent B2
US 12,440,317 · App. 17/495,732 · Granted Oct 14, 2025

Systems and methods for personalized oral care

Inventors: Ryan Christopher Evans (San Francisco, CA); Angela Junyan Chu (San Francisco, CA); Sophie Katherine Sheeline (San Francisco, CA); Bruce Michael Schena (Menlo Park, CA); Michael Lee Hanuschik (Mountain View, CA); Jonathan Riley Cox (Saratoga, CA); Kristina Jenna Cook (San Francisco, CA)
Assignee: Fresh Health Inc.
A61C17/0211A61C17/0202A61C17/3481
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Quick Facts
Patent No.
US 12,440,317
App. No.
17/495,732
Granted
Oct 14, 2025
Kind
B2
Abstract

Described herein are systems and methods for providing personalized oral care. A system for oral care comprises an oral insert. The oral insert is sized and shaped according to a user's oral cavity, and has a plurality of fluid nozzles and an effluence conduit to channel fluid out of the user's oral cavity. Pressurized fluid provided through the nozzles are directed to, for example, the interproximal spaces between the user's teeth. In some variations, a system comprises an oral insert and an elastomeric substrate that is attached to the oral insert. In some variations, the elastomeric substrate comprises a textured surface vibrates and/or mechanically agitates and/or translates along the surface of the user's teeth. In some variations, a system for oral care comprises a microbiome collection chamber. Some variations comprise dental shim devices that are used for acquiring oral structure data and alignment between the upper and lower arches.

Claims (27)

1. A system, comprising:

a fluid conduit coupled to a fluid supply and which provides fluid from the fluid supply to an oral insert via a manifold connector located at a bottom portion of the oral insert; and

the oral insert comprising:

an upper portion that includes at least a first manifold coupled to the fluid conduit;

a lower portion that includes at least a second manifold coupled to the fluid conduit;

a plurality of fluid nozzles located in the upper portion and the lower portion and directed toward interproximal spaces between teeth associated with a user and/or gingiva margins; and

an effluence conduit located between the upper portion and the lower portion of the oral insert, wherein the effluence conduit includes a central port configured to drain the fluid from a mouth of the user, wherein the effluence conduit includes a first posterior opening located on a first lingual surface of the oral insert and a second posterior opening located on a second lingual surface of the oral insert, wherein the first posterior opening is coupled to a first lateral channel and the second posterior opening is coupled to a second lateral channel, wherein the first lateral channel and the second lateral channel are coupled to the central port, wherein the first posterior opening and the second posterior opening are configured to receive the fluid from a posterior oral cavity region of the user, wherein the central port terminates at a single anterior opening located at a front portion of the oral insert.

2. The system of claim 1 , wherein the fluid conduit includes a fluid regulator configured to regulate fluid flow to the plurality of fluid nozzles.

3. The system of claim 2 , wherein the fluid regulator directs fluid to one manifold at a time.

4. The system of claim 3 , wherein the fluid regulator sequentially directs the fluid to a plurality of manifolds that includes the at least a first manifold of the upper portion and the at least a second manifold of the lower portion.

5. The system of claim 2 , wherein the fluid regulator directs fluid to two or more manifolds at a time.

6. The system of claim 2 , wherein the fluid regulator includes a fluid switcher assembly.

7. The system of claim 6 , wherein the fluid switcher assembly includes a motor and a switcher.

8. The system of claim 1 , wherein the upper portion of the oral insert is sized and shaped to receive the user's upper teeth.

9. The system of claim 1 , wherein the lower portion of the oral insert is sized and shaped to receive the user's lower teeth.

10. The system of claim 1 , wherein the oral insert has a U-shaped curve that corresponds to the user's mandible and/or maxilla.

11. The system of claim 1 , wherein the oral insert comprises an elastomeric substrate.

12. The system of claim 11 , further comprising a handle that includes the fluid conduit and is coupled to the oral insert.

13. The system of claim 12 , wherein the handle includes a vibration mechanism that causes vibratory motion of the elastomeric substrate.

14. The system of claim 1 , wherein the effluence conduit is sized and shaped to promote egress of the fluid after the fluid has been passed through the interproximal spaces and circulated throughout an oral cavity of the user so that the fluid does not accumulate in a mouth of the user.

15. The system of claim 1 , further comprising a pumping mechanism.

16. The system of claim 15 , wherein the pumping mechanism is configured to provide the fluid to the oral insert at a pressure between 40 psi to 200 psi.

17. The system of claim 1 , wherein a fluid pressure of the fluid exiting each of the plurality of fluid nozzles is between 10 psi and 150 psi.

18. The system of claim 1 , wherein the central port extends between a posterior region and anterior region of the oral insert.

19. The system of claim 1 , wherein the effluence conduit is sized and shaped to allow for fluid egress of the fluid at a same or greater rate as fluid ingress of the fluid.

20. The system of claim 1 , wherein the effluence conduit comprises a first side fluid cavity and a second side fluid cavity.

21. The system of claim 1 , wherein the fluid is water, an antiseptic solution, a liquid medicament, a flavored solution, a cleansing solution, or an abrasive solution.

Assignments (1)
SECURITY INTEREST Recorded Feb 3, 2025
From: FRESH HEALTH INC.
To: FIRST-CITIZENS BANK & TRUST COMPANY
Reel/Frame 070089/0133 →
Continuity (5)
Continuation 17066383 · Oct 8, 2020
Continuation PCTUS2020028311 · Apr 15, 2020
Provisional Application 62833926 · Apr 15, 2019
Provisional Application 62879983 · Jul 29, 2019
Related Publication 20220265406A1 · Aug 25, 2022
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