公开(公告)号：US20240016393A1

公开(公告)日：2024-01-18

申请号：US18251316

申请日：2021-10-28

Applicant: Colgate-Palmolive Company

Inventor： Indrani BANERJEE ,  Donghui WU

IPC: A61B5/02 ,  A61B5/00 ,  A46B15/00

CPC classification number: A61B5/02042 ,  A61B5/0088 ,  A46B15/0034 ,  A46B15/0022 ,  A61B5/682 ,  A61B5/742 ,  A46B2200/1066

Abstract: In one aspect, a system for detecting blood in an oral cavity during toothbrushing is disclosed. A toothbrush includes a sensor configured to emit first light at a first wavelength and second light at a second wavelength, and receive reflected portions of the light, the reflected portions having a first intensity and a second intensity, respectively. For each of a plurality of different times of a brushing session, a processor calculates a ratio of the first intensity to the second intensity. The processor identifies peaks in the ratio over the different times and, based on the number of peaks in the ratio, determines whether hemoglobin is present in the oral cavity.

公开(公告)号：US20220133608A1

公开(公告)日：2022-05-05

申请号：US17577672

申请日：2022-01-18

Applicant: Colgate-Palmolive Company

Inventor： Iraklis PAPPAS ,  Zhichao HU ,  Donghui WU

IPC: A61K8/27 ,  A61K8/19 ,  A61K8/22 ,  A61K8/24 ,  A61K8/85 ,  A61Q11/00

Abstract: An oral care composition comprising primarily insoluble forms of zinc compounds and stannous compounds, as well as methods of using the same in the treatment or prevention of gingivitis, plaque, and dental caries.

公开(公告)号：US20170238688A1

公开(公告)日：2017-08-24

申请号：US15504453

申请日：2014-08-18

Applicant: COLGATE-PALMOLIVE COMPANY

Inventor： Donghui WU ,  David Kyung Min Lee

IPC: A46B11/00 ,  A46B5/02

CPC classification number: A46B11/0041 ,  A46B5/026 ,  A46B11/002 ,  A46B11/0058 ,  A46B11/0065 ,  A46B11/0086 ,  A46B2200/1066 ,  B05B11/3032 ,  B05B11/3069

Abstract: An oral care implement including a body comprising a handle, a head at an end of the handle, and at least one fluid outlet, the head having at least one oral care element extending therefrom; a reservoir, in the body, for storing an oral care fluid; and a pump for pumping the oral care fluid from the reservoir towards the fluid outlet, wherein the pump comprises a first check valve downstream of the reservoir, and a second check valve downstream of the first check valve and upstream of the fluid outlet. One of the first and second check valves comprises a valve seat defining an opening through which the oral care fluid is flowable, a valve member separate from the valve seat and comprising a stopper movable linearly relative to the valve seat, and a resilient element separate from the valve member and biasing the stopper towards the valve seat.

公开(公告)号：US20170171438A1

公开(公告)日：2017-06-15

申请号：US14968541

申请日：2015-12-14

Applicant: COLGATE-PALMOLIVE COMPANY

Inventor： Xiang CHEN ,  Donghui WU

IPC: H04N5/225 ,  A61B5/00 ,  G06T7/40 ,  A61B1/24 ,  H04N5/238 ,  G06T7/00

CPC classification number: A61B5/0088 ,  A61B1/053 ,  A61B1/24 ,  A61B5/1032 ,  H04N5/2251 ,  H04N5/2256

Abstract: Apparatuses and methods for producing improved photographs suitable for measuring teeth whiteness with a handheld camera using a camera jig are provided. The camera jig includes a base that contacts a surface. The camera jig also includes a light shield made from a tubular structure defining an interior cavity. The camera jig further includes a slot in the tubular structure that supports the handheld camera at a predetermined distance from a target, which may be teeth of a user. The slot aligns a lens of the handheld camera with the target. Further, the light shield blocks substantially all ambient light, other than light of a light source of the handheld camera, from the target as it is photographed.