Invention Application
- Patent Title: Toothbrush, System, and Method for Detecting Blood in an Oral Cavity During Toothbrushing
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Application No.: US17630689Application Date: 2019-08-02
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Publication No.: US20220257968A1Publication Date: 2022-08-18
- Inventor: Donghui WU , Michael FITZGERALD
- Applicant: Colgate-Palmolive Company
- Applicant Address: US NY New York
- Assignee: Colgate-Palmolive Company
- Current Assignee: Colgate-Palmolive Company
- Current Assignee Address: US NY New York
- International Application: PCT/US2019/044783 WO 20190802
- Main IPC: A61N5/06
- IPC: A61N5/06 ; A46B15/00 ; A61B5/00 ; A61C17/22 ; A61B5/1455

Abstract:
A system for detecting blood in an oral cavity during toothbrushing. The system may include a toothbrush having a sensor that is configured to emit first light at a first wavelength and second light at a second wavelength, receive reflected portions of the first and second light, and generate a first signal indicative of a first intensity of the reflected portion of the first light and a second signal indicative of a second intensity of the reflected portion of the second light. The system may include a processor operably coupled to the sensor, the processor being configured to receive the first and second signals and calculate a ratio of the first intensity to the second intensity to determine whether hemoglobin/blood is present in the oral cavity. The processor may be a part of the toothbrush or a part of a portable electronic device such as a smart phone.
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