EP-4736939-A2 - ORAL CARE DEVICE

EP4736939A2EP 4736939 A2EP4736939 A2EP 4736939A2EP-4736939-A2

Abstract

Embodiments of the present invention provide a multifunctional oral care device comprising a lip care assembly and a tooth care assembly that can be detachably connected or used independently. The assemblies include light therapy components configured to emit specific wavelengths for lip and oral treatment. The device further includes an orientation detection module for mode switching, dual or synchronized control units with detachable power supplies, and optional intermediate layers for irradiating inner lip surfaces. A nasal care phototherapy device can also be connected through an auxiliary interface for combined facial or oral therapy.

Inventors

Ou, Baihui
Ou, Bailing
Yu, Zhang
DIJKSTRA, Alain

Assignees

Shenzhen Oren Medical Technology Co., Ltd.

Dates

Publication Date: 20260506
Application Date: 20251104

Claims (17)

An oral care device comprising: a lip care assembly including a first phototherapy circuit configured to emit light for cosmetic or therapeutic treatment of lips, and a first electrical contact; a tooth care assembly including a second phototherapy circuit configured to emit light for cosmetic or therapeutic treatment of teeth, and a second electrical contact; at least one control unit configured to control the operation of the oral care device; and a detachable coupling structure configured to mechanically and electrically connect the lip care assembly and the tooth care assembly; wherein electrical communication between the first electrical contact and the second electrical contact enables coordinated or independent operation of the first phototherapy circuit and the second phototherapy circuit.
The oral care device of claim 1, wherein the at least one control unit comprises: a first controller and a first power supply associated with the lip care assembly; and a second controller and a second power supply associated with the tooth care assembly.
The oral care device of claim 2, wherein: the lip care assembly is configured to operate independently under the control of the first controller and the first power supply when uncoupled from the tooth care assembly; the tooth care assembly is configured to operate independently under the control of the second controller and the second power supply when uncoupled from the lip care assembly; and when the lip care assembly and the tooth care assembly are mechanically and electrically coupled, the first controller and the second controller are configured to operate in a coordinated phototherapy mode under synchronized control.
The oral care device of claim 2, wherein, when the tooth care assembly is coupled to the lip care assembly, the first controller automatically operates in a master-control mode to coordinate and control operation of the second controller and the second phototherapy circuit.
The oral care device of claim 1, further comprising a nasal therapy assembly configured to be detachably connected to the at least one of the lip care assembly or the tooth care assembly for cosmetic or therapeutic treatment of nasal tissue.
The oral care device of claim 1, wherein at least one of the control units is disposed within the lip care assembly or is detachably attachable to the lip care assembly.
The oral care device of claim 1, wherein the detachable coupling structure comprises: a first support portion extending from the lip care assembly; and a second support portion extending from the tooth care assembly and detachably connectable with the first support portion to mechanically couple the lip care assembly and the tooth care assembly; the first electrical contact disposed on the lip care assembly and electrically connected to the first phototherapy circuit, and a second electrical contact disposed on the tooth care assembly and electrically connected to the second phototherapy circuit; wherein, when the first support portion and the second support portion are connected, the first electrical contact and the second electrical contact engage to establish electrical communication between the lip care assembly and the tooth care assembly for synchronized or shared-power operation.
The oral care device of claim 7, wherein the first support portion comprises a support column, and the second support portion comprises a support groove configured to receive the support column to enable insertion and mechanical coupling between the lip care assembly and the tooth care assembly.
The oral care device of claim 7, wherein the at least one of the first support portion and the second support portion, or the first electrical contact and the second electrical contact includes a magnetic coupling structure configured to provide mechanical alignment and electrical connection between the lip care assembly and the tooth care assembly.
The oral care device of claim 7, wherein the tooth care assembly comprises a second mount including an occlusal sleeve and a second bracket disposed within the occlusal sleeve; the second bracket comprising a first tooth support and a second tooth support, and the second phototherapy circuit is supported by the second bracket.
The oral care device of claim 10, wherein an end of the second bracket is exposed from the occlusal sleeve adjacent the lip care assembly, and the second support portion and the second electrical contacts are positioned at the exposed end of the second bracket.
The oral care device of claim 10, wherein the second phototherapy circuit is disposed between the occlusal sleeve and the second tooth support, and is configured to emit light toward the second tooth support to perform inner-lip treatment and to emit light toward the occlusal sleeve to perform tooth treatment.
An oral care device comprising: a lip care assembly including a first light-emitting layer configured to emit light within a first wavelength range suitable for enhancing lip appearance; a tooth care assembly including a second light-emitting layer configured to emit light within a second wavelength range suitable for treating teeth or oral tissue; and an intermediate layer disposed between the lip care assembly and the tooth care assembly, the intermediate layer being positioned to contact or face an inner surface of lips and comprising a third light source configured to emit light having a wavelength effective for treating inner-lip tissue or sores; wherein, during use, lips are positioned between the first light-emitting layer and the intermediate layer, enabling simultaneous irradiation of inner and outer lip surfaces.
The oral care device of claim 13, wherein the intermediate layer is disposed on the backside of the tooth care assembly, the backside being oriented toward an inner surface of the lips when the tooth care assembly is positioned within a mouth.
An oral care device comprising: a lip care assembly including a first electrical contacts and a first phototherapy circuit; a tooth care assembly including a second electrical contacts and a second phototherapy circuit; and a load detection module electrically connected to at least one of the phototherapy circuits, the load detection module being configured to detect a positional state of the tooth care assembly relative to the lip care assembly based on electrical loading between corresponding first and second electrical contacts, and to selectively operate one or more of the phototherapy circuits according to the detected positional state.
The oral care device of claim 15, wherein the load detection module is configured to activate the first phototherapy circuit when the tooth care assembly is in a first orientation and to activate the second phototherapy circuit when the tooth care assembly is in a second orientation.
The oral care device of claim 15, wherein the load detection module is configured to detect an orientation of the tooth care assembly and to control an operational mode of the first phototherapy circuit and the second phototherapy circuit based on a detected positional state of the tooth care assembly.

Description

TECHNICAL FIELD The present invention relates to beauty and personal care devices, and more particularly to an oral care or mouth beauty device configured for cosmetic or therapeutic treatment of lips, teeth, and surrounding oral tissues. BACKGROUND ART Lip beauty devices are commonly used in the field of cosmetic and oral care technology to enhance the appearance and health of the lips. Such devices generally employ light-based or phototherapy techniques, wherein light of specific wavelengths is directed toward the lips to stimulate collagen production, improve blood circulation, and promote skin rejuvenation. As a result, regular use of these devices can lead to firmer, smoother, and more vibrant lips. In conventional designs, a lip beautification device typically requires a bite or occlusal structure positioned inside the mouth, which the user grips with the teeth to hold the device in place during use. This structure provides mechanical support and maintains the proper position of the lip treatment portion relative to the lips and mouth. However, existing devices suffer from several limitations that reduce user comfort, treatment stability, and functional reliability. Most known lip beautifiers and occlusal assemblies employ magnetically coupled or electrode-based connection mechanisms between the lip treatment portion and the occlusal (tooth-supporting) portion. These magnetic or electrode connections are often insufficiently stable, particularly during extended use or when the user moves the jaw or lips. The coupling may easily become loose or detached, causing the device to fall from the user's mouth or leading to interruption of the electrical circuit that powers the light sources. This instability not only disrupts the phototherapy process but also degrades the overall user experience. Moreover, conventional devices are typically designed as single-function systems, operating either as lip treatment devices or as tooth whitening or oral therapy devices. This limits their usability and fails to provide comprehensive treatment across the lip and oral regions. Users seeking simultaneous treatment of lips, teeth, or inner oral tissues are therefore required to employ multiple, separate devices, resulting in inconvenience and inefficiency. Furthermore, existing devices generally lack intelligent control coordination between multiple treatment assemblies. For example, when lip and tooth treatment units are combined, there is often no effective mechanism for synchronized operation, independent mode control, or automated switching between treatment states based on the user's position or orientation of the device. Such limitations restrict the adaptability and precision of light-based treatments within the oral cavity. Accordingly, there remains a need for an improved oral beauty device that provides a stable and reliable connection between lip and tooth treatment assemblies, ensures uninterrupted electrical communication during use, and enables both independent and coordinated operation of multiple phototherapy circuits. It is also desirable for such a device to support modular expansion, allowing detachable integration with additional therapy assemblies, such as nasal treatment modules, and to incorporate intelligent detection or control functions for optimizing treatment performance and user comfort. OBJECTS OF THE INVENTION Some of the objects of the invention are as follows: An object of the present invention is to provide an oral care or mouth beauty device capable of performing cosmetic and therapeutic phototherapy on the lips, teeth, and adjacent oral tissues in a coordinated and efficient manner. Another object of the invention is to provide an oral care device having a lip care assembly and a tooth care assembly that can be mechanically and electrically coupled or detached, thereby allowing both assemblies to operate either independently or in a synchronized phototherapy mode when connected. A further object of the invention is to provide a stable and reliable detachable coupling structure between the lip care assembly and the tooth care assembly, ensuring a firm mechanical connection and uninterrupted electrical communication during use, while maintaining user comfort and ease of attachment or removal. Yet another object of the invention is to provide an oral care device incorporating independent control units or controllers for the lip care and tooth care assemblies, enabling autonomous operation of each module when used separately, and master-slave coordinated control when the assemblies are coupled together. An additional object of the invention is to provide a modular oral care system that can be expanded to include additional therapeutic assemblies, such as a nasal therapy module, thereby allowing comprehensive beauty and wellness treatment for multiple facial regions using a single integrated system. Another object of the invention is to provide an oral care device having an intermediate li