Administration of oral care agents

    公开(公告)号:US11185400B2

    公开(公告)日:2021-11-30

    申请号:US16305962

    申请日:2017-05-30

    Abstract: Disclosed is a method, and a system, for accomplishing the in situ formation of a gel in an interdental space. This is useful for the interdental application of one or more dental care agents, such as antimicrobial agents or other anti-plaque agents. The invention makes use of a two component system comprising a gelable liquid and a liquid gelling agent capable of bringing about gelation of the liquid. The system of the invention is arranged such that first the gelable, typically viscous, liquid can be applied, and then the liquid gelling agent is forced, e.g. jetted, into the applied gelable liquid. The system is designed such as to prevent the gelling agent and the gelable liquid to come into contact with each other before both have been applied. The system is configured to allow the gelable liquid to be applied prior to the gelling agent.

    Oral care particles and system for the administration thereof

    公开(公告)号:US11185489B2

    公开(公告)日:2021-11-30

    申请号:US16496462

    申请日:2018-03-23

    Abstract: Disclosed is a system and method for the delivery, into interdental spaces, of oral care active agents contained in particles. The particles are made of one or more superabsorbent polymers (SAP), and are of size generally small enough to be easily applied into an interdental space. To this end, the particles typically have a length of below 1.5 mm. By virtue of the SAP's ability of absorbing several times its own weight in water, the particles will swell once in contact with saliva. As a result, the volume of the particles as applied in between teeth increases by at least eight times, thereby effectively making the particles larger than the average interdental gap size. The particles, once swollen, are thus held more firmly between the walls of the interdental space, thus preventing them from being easily washed away.

    Nozzle for powder delivery with a personal care appliance and method

    公开(公告)号:US10682206B2

    公开(公告)日:2020-06-16

    申请号:US15564208

    申请日:2016-04-04

    Abstract: A powder delivery nozzle (12) for a personal care appliance (10) comprises a body (28), guidance tip (38), powder chamber (50), and flexible membrane (56). The body (28) includes an air-liquid channel (30) for delivery of air and/or liquid from a proximal end to a distal end thereof. The guidance tip (38), located at the distal end of the body (28), includes an orifice (40) coupled to the air-liquid channel (30) and is configured to expel a pulse of air and/or liquid. The powder chamber (50) is configured for storing a powder (52) and having an air intake port (42) and a powder outlet port (44). The flexible membrane (56) is disposed between the powder chamber (50) and the air-liquid channel (30). Responsive to delivery of a pulse of air and/or liquid via the air-liquid channel (30), a pulse of pressure is applied to the flexible membrane (56) for actuating a release of powder expelled from the powder chamber (50) via the powder outlet port (44). A method and personal care appliance are also disclosed.

    Method and system for oral PH change

    公开(公告)号:US11284706B2

    公开(公告)日:2022-03-29

    申请号:US15536431

    申请日:2015-12-11

    Abstract: A new method and a system for increasing the pH of a composition applied on teeth and/or gums. The composition is gelable under the influence of a pH change. The device includes a dispensing unit for the composition, a distal end of which is adapted to apply the composition onto teeth or gums. The device further includes an electrode system having first and second electrodes, the first electrode adapted to be held against the composition at a location at or near teeth or gums, and the second electrode adapted to be held against the composition at a location away from teeth or gums. The electrode system is adapted so as to provide an electrical potential difference of 1.5 to 10 Volt between the first and second electrodes.

    Oral cleaning device with adjustable fluid dynamics

    公开(公告)号:US10130452B2

    公开(公告)日:2018-11-20

    申请号:US14900203

    申请日:2015-05-05

    Abstract: An oral cleaning device (100) including: a nozzle portion (30) configured to direct a plurality of liquid droplets; an actuator (120); a mode selector (130); a liquid reservoir (38) wherein in operation liquid is moved from the liquid reservoir into an orifice (36) at the proximal end of the nozzle; a system (12, 13, 14, 24) configured to drive a plunger or piston element (16) toward the proximal end of the nozzle to create a spray of liquid droplets when the moving air comes into contact with the liquid; a control unit (15) configured to control the system to drive the plunger a predetermined number of times in response to a single actuation of the actuator, where the control unit is further configured to accept input from the user via the mode selector, and the mode selector is configured for the user to select a number of liquid bursts that will be delivered in response to a single actuation of the actuator.

    DEVICE FOR DELIVERY OF A TOOTH WHITENING AGENT
    8.
    发明申请
    DEVICE FOR DELIVERY OF A TOOTH WHITENING AGENT 审中-公开
    用于输送牙齿白剂的装置

    公开(公告)号:US20140308625A1

    公开(公告)日:2014-10-16

    申请号:US14365787

    申请日:2012-12-19

    CPC classification number: A61C17/028 A61C3/025 A61C19/066

    Abstract: A delivery device (12) includes a source (16) of pressurized fluid, a nozzle (24, 16) which defines an outlet (22), a pathway (20) which fluidly connects the source of pressurized fluid with the nozzle outlet (22) for delivery of a spray of fluid from the nozzle outlet, and a receptacle (32), which receives a dose of particles (28). The receptacle is positioned in the pathway such that the dose of the particles is carried by the pressurized fluid and through the nozzle outlet, the particles including a tooth whitening agent.

    Abstract translation: 输送装置(12)包括加压流体源(16),限定出口(22)的喷嘴(24,16);将加压流体源与喷嘴出口(22)流体连接的通路(20) ),用于从喷嘴出口输送流体喷雾;以及容纳(28)的容器(32),其容纳一定量的颗粒(28)。 容器定位在通道中,使得颗粒的剂量由加压流体携带并通过喷嘴出口,颗粒包括牙齿增白剂。

    Personal care device
    9.
    发明授权

    公开(公告)号:US12269072B2

    公开(公告)日:2025-04-08

    申请号:US18269197

    申请日:2021-11-19

    Abstract: A personal care device (12) comprising an RF signal generator (32) for generating RF-frequency electromagnetic emissions for a cleaning or treatment function. The RF emissions may be output from a set of two or more RF electrodes (22) (e.g. electrodes) upon stimulation with an RF drive signal in a frequency range from 3 kHz to 30 GHz from an RF signal generator. The device further includes a controller (34) for detect a degraded functional state of the RF electrodes (22) via monitoring changes or variations in one or more electrical characteristics of the RF signal generator (32), e.g. drift in one or more electrical characteristics from reference factory levels, or sudden changes in the characteristics, indicating a short-circuit. A response action can be generated based on the electrical characteristics meeting pre-defined criteria indicative of a certain degraded functional status, for example generating a sensory alert for a user or data output, or performing remedial action such as deactivating sensed defective or worn electrodes.

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