US20220087406A1

US20220087406A1 - Portable hair styling device with massaging bristles and formulation dispenser

Info

Publication number: US20220087406A1
Application number: US17/025,619
Authority: US
Inventors: David B. Kosecoff
Original assignee: LOreal SA
Current assignee: LOreal SA
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2022-03-24

Abstract

A hair and scalp treatment device that comprises a dispenser connected to a cartridge, wherein the cartridge comprises a formulation; a plurality of tips on the device, wherein the tips have at least one opening to dispense the formulation; and a controller configured to control the dispensing of the formulation through one or more tips individually.

Description

SUMMARY

Scalp and hair formulations exist for treating dandruff, hair-loss, stress reduction, itchiness, color and tint, oiliness, appearance, frizz, volume, shine, dryness, density, and more. However, more smart methods for applying formulations to the scalp and hair are needed.
In one embodiment, a portable-sized brush or comb device includes massaging tips individually controlled in XYZ motions by a actuator. The tips individually dispense a precisely measured volume of scalp product only upon contact with your scalp (through use of open/short or dielectric skin contact sensors). Individually activated tips spray hair product (dry shampoo or color tint) in tightly controlled formations (i.e., in a flat fan formation). Personalized scalp and hair products are stored in swappable cartridges. The addition of a camera can diagnose scalp and hair conditions related hair density, tone, and dryness. The addition of LEDs can further treat hair, facilitate camera imaging, and be used for formula curing.
This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the Detailed Description. This summary is not intended to identify key features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

DESCRIPTION OF THE DRAWINGS

The foregoing aspects and many of the attendant advantages of this invention will become more readily appreciated as the same become better understood by reference to the following detailed description, when taken in conjunction with the accompanying drawings, wherein:

FIG. 1 is a diagrammatical illustration of a hair and scalp treatment device;

FIG. 2 is a diagrammatical illustration of the hair and scalp treatment device of FIG. 1;

FIG. 3 is a diagrammatical illustration of a back view of the hair and scalp treatment device of FIG. 1;

FIG. 4 is a diagrammatical illustration of a tip utilizing half cylinder construction for the brush and comb embodiments;

FIG. 5 is a diagrammatical illustration of a tip utilizing full cylinder within cylinder construction for the brush and comb embodiments;

FIG. 6 is a diagrammatical illustration of a tip with LEDs of half cylinder construction for the brush and comb embodiments;

FIG. 7 is a diagrammatical illustration of a tip with LEDs of full cylinder within cylinder construction for the brush and comb embodiments;

FIG. 8 is a schematic illustration showing the components of an embodiment of a hair and scalp treatment device;

FIG. 9 is a schematic illustration showing the ends of individual tips being controlled to dispense formulation in circular and linear patterns; and

FIG. 10 is a schematic illustration showing an individual tip having individual actuators for vibration in three axes.

DETAILED DESCRIPTION

Individuals are washing hair with traditional wet water-based shampoo less and less frequently. A number of reasons can be offered for the reduction in this type of shampoo, such as preventing hair-loss and hair damage or saving time and energy. Dry shampoos are on the rise. People are trying to prolong time in-between salon visits to save money, leading to growing interest in tinted dry shampoos for root touch-up. Dry shampoos are primarily packaged in spray bottles. However, spray bottles create concerns about inhaling the product and unintentional spraying of the face, particularly the eyes. Spray bottles are imprecise in both spray direction and spray amount. Further, spray bottles are not appropriate when traveling or using public bathrooms. Dry shampoos do not clean the scalp and in fact can damage it. Nevertheless, there is a belief that caring for the scalp leads to healthy hair. ‘Dry’ methods of cleaning the scalp involve either brushing or preening to spread the oils onto hair. Scalp treatment and scalp-directed formulas can be applied via pipettes, foams or powders, and require manually parting your hair. Powders and foams get on hands. Dripping excessive product onto scalp can create runoff and greasy-looking hair. Reusable and closed-loop product design is a growing demand.
In one embodiment, a device includes massaging tips individually controlled in XYZ motions by a actuator. The tips individually dispense a precisely measured volume of scalp product only upon contact with your scalp (through use of open/short or dielectric skin contact sensors). Individually activated tips spray hair product (dry shampoo or color tint) in tightly controlled formations (i.e., in a flat fan formation). Personalized scalp and hair products are stored in swappable cartridges. The addition of a camera can diagnose scalp and hair conditions related hair density, tone, and dryness. The addition of LEDs can further treat hair, facilitate camera imaging, and be used for formula curing.
In one embodiment, a device releases hair and/or scalp product as a vapor cloud (mist) either through ultrasound (similar to a household humidifier). The more gentle dispersion of the product reduces the amount of waste and improves control of coverage. This solution contrasts with an aerosol spray can that sprays more than is needed and produces a large cloud that covers an area well outside the user's head.
In one embodiment, a multi-use device with individually controlled tips for dispensing formulation and other uses is described.
In one embodiment, each tip is constructed as a joining of a first half-cylinder as a positive conductor and a second half-cylinder as a negative conductor, separated by a non-conductive gasket. Purely in terms of geometry, each tip is a cylindrical chamber split lengthwise into two or more isolated chambers, or two or more isolated cylinders affixed to each other lengthwise.
In one embodiment, a tip acting as a positive terminal can be used to provide additional functionality to the tips. In one embodiment, micro-currents can be provided to the scalp, where the scalp acts as the GND path which also includes the skin and tissue between the scalp and a negative terminal placed so as to be in contact with the hand, such as on the handle 104 of the device 100. Tips can provide micro-currents to the scalp, where the scalp acts as a conductive path between any positive terminal and any negative terminal. Alternatively, micro-currents can be administered between multiple tips, where one tip acts at the positive source and the other acts as GND.
In one embodiment, impedance can be measured between the positive and negative terminals to determine scalp moisture level. Alternatively, impedance can be measured between multiple tips to determine scalp moisture level across wider regions. Impedance can be measured between the positive terminal or negative terminal and scalp (via return path to handle) to determine if a tip is in contact with scalp (skin). This is useful if the application requires scalp contact; for instance, in a formula treatment with vacuuming system, where the scalp is the treatment target and the vacuum is at risk of vacuuming hair if it's not operating directly on the scalp.
A LED can be placed at the end of the tip and powered by the two terminals. If the LED is powerful, thermal dissipation can be absorbed (heatsinked) by the conductive material. A LED at the far end of the tip will deliver more energy to the scalp than if it is at the base and/or delivered through a long fiber-optic path. The LED can be used for treatment, curing formula, or indicating device status (i.e., operational mode or charging status).
A series of laser-cut holes (perforations) along the length of tip can be used to deliver formulations to the scalp and/or hair. Alternatively, individual openings at the very end of the tip can be used if only the scalp is targeted.
The functions of the tips and their split conduction halves can be dynamically controlled and reassigned by a central integrated circuit within the primary body of the brush device. Even if the tip is not made of conductive materials, the ‘two or more cylinder’ construction can be useful if the application involves mixing formulas or dispensing formula with vacuuming onto a small, controlled target area on the scalp.
FIG. 1 is an illustration of a device 100 for cleansing hair that can be used with dry shampoo formulations that has additional functionality through the individual activation of tips for dispensing, sensing, massaging, and other uses . In one embodiment, the device 100 uses a brush- or comb-like architecture that relies on a combination of mechanical and chemical action to deposit desired formulations for cleansing, removing the formulations with unwanted particulates, and further provides additional cosmetic or health attributes. The intuitive action provides a familiar gesture easy to incorporate into current beauty and haircare routines. Further, the device 100 can include various types of hollow conductive or non-conductive tips (702, 802, 1100, or 1200) arranged in a brush or comb configuration. A brush configuration is shown in the FIGURES, however, the device 100 can be configured with tips in a comb configuration, i.e., a single row. However, the tips arranged in a brush configuration allows various advantages, such as individual actuation of the tips for applying one or more treatments, dispensing, or massaging using only some, but not all, tips.
In one embodiment, the tips being conductive allows several options, for example, the conductive tips can be used with a micro-current generator, or the conductive tips can be used as a sensing instrument to detect skin contact, or the conductive tips can be used to power light-emitting diodes (LEDs) for light therapy, or the conductive tips can be used to provide vibration in one to three axes.
In one embodiment, the device 100 is provided with tips utilizing a hollow construction that allows more precise delivery of formulations. For example, formulations can be dispensed from only those tips to form a certain spray pattern. In one embodiment, the conductive tips are made from more than one hollow chambers extending the length of the tips that allow dispensing one or more formulations through the tips. In one embodiment, the tips are non-conductive, but still include hollow chambers extending the length of the tips to provide the dispensing feature.
In one embodiment, the device 100 is shaped in the style of well-recognized familiar hair appliances to inspire trust and confidence in the device leading to intuitive use and gestures when using the device.
Referring to FIGS. 1 and 2, in one embodiment, the device 100 includes a handle 104 connected to a substantially cylindrical section 138. The handle 104 is connected to the device 100 at an obtuse angle with respect to the front end of the device 100. The handle 104 helps balance the device weight for more comfortable use and easier control. The control buttons can also be located on the handle.
Referring to FIG. 2, at the back side, the device 100 can include a smaller diameter cylindrical shaped housing 136 that accepts a removable cartridge 102 containing a hair or scalp treatment formulation. Device 100 allows cartridges 102 to be swapped readily to provide different formulations. The cartridge 102 can be configured to be a re-fillable cartridge or a disposable cartridge. In one embodiment, the device 100 can be configured to hold more than one cartridges 102, wherein each cartridge can be filled with a different formulation for a different treatment. Alternatively, some applications may use two or more different formulations that require applying both formulations to achieve the intended treatment.
Forward from the rear housing 136, the device 100 exterior shape increases step-wise to a larger outer diameter portion 138 compared to the cartridge housing 136 diameter. In one embodiment, the device 100 includes a body structure that has a substantially cylindrical or minimally tapered conical portion 138 from the back end to about the middle of the device length. In one embodiment, the handle 104 connects to the back side of portion 138.
In one embodiment, the device 100 has the tips 602, 702, 1100, 1200 arranged in a brush configuration, such as concentric circles. The device 100 includes a brush head 140 connected to the central portion 138. The brush head 140 is the part of the device 100 that holds the tips 602, 702, 1100, or 1200. In one embodiment, the brush head 140 is static with respect to the device and does not actuate, because the individual tips are actuated individually to vibrate, thus, obviating the need to have a rotating or oscillating brush head. Further, the tips are also configured to enable controlling the dispensing of formulations from some individual tips and not others. This allows “turning on” some tips while leaving other tips “turned off” to create different spray patterns from the brush head.
In one embodiment, the tips 602, 702, 1100, 1200 are arranged in concentric circles on the brush head 140. In one embodiment, the tips 602, 702, 1100, 1200 are configured to be able to dispense two different formulations. In an embodiment, the tips 602, 702, 1100, 1200 have hollow chambers that extend the entire length of the tips. Tips 602, 702, 1100, 1200 are at least one diameter in length. However, tips 602, 702, 1100, 1200 can be constructed to be several diameters in length, so the width to length ratio can vary from 1 to 1 to 1 to 20 or more. The tips 602, 702, 1100, 1200 can be flexible or non-flexible. Tips 602, 702, 1100, 1200 can also be connected on the brush head 140 in a flexible matter. The segregated chambers allow one or more formulations to be delivered through each chamber without mixing. The formulations can be segregated within the respective chambers until the time the formulations exit the chambers. The dispensing of formulations can be accomplished by constructing each of the chambers with openings along the length or only at the ends or both along the length and ends of the chambers. Further, each of the chambers in the tips can have a valve or other means to control dispensing only from one chamber or both chambers. Controlling the dispensing of formulations from only certain tips on the brush head allows dispensing in multiple patters, for example, cone spray, fan spray, and the like.
In an embodiment, chambers are depicted as half-cylinders and full cylinders, but the chambers may take on any cross-sectional shape. Additionally, in an embodiment, the tips 602, 702, 1100, 1200 and the first and second hollow chambers forming them can be electrically conductive so as to be configured as a positive and negative terminal to further provide micro-currents or to the scalp and hair. Further, conductive tips 602, 702, 1100, 1200 have other uses when the first and second hollow chambers are connected to a positive and negative terminal of a power supply or the first and second hollow chambers are connected to a positive and negative sensing terminal.
In one embodiment, the tips 602, 702, 1100, 1200 do not need to conductive, but the multi-cylinder construction can still be useful if the application involves mixing formulations or dispensing formulations and vacuuming onto a small, controlled target area on the scalp.
Referring to FIG. 4, in one embodiment, the tip 602 is constructed as joining a first hollow half cylinder 604 to a second hollow half cylinder 606 along the length direction. The first 604 and second 606 half cylinders can be made from an electrically conductive material. In one embodiment, the first 604 and second 606 half cylinders are separated by an electrical insulator 608. Here, although the overall shape of the tip 602 is of a “cylinder,” according to this disclosure the tip 602 can have any cross-sectional shape, including oblong, rectangular, square, or any other polygon.
In one embodiment, the first hollow half cylinder 604 and the second 606 hollow half cylinder are made from a conductive material such as metal. In one embodiment, one of the first 604 or second 606 half cylinder can be designated a positive conductor terminal and the other half cylinder will be designated a negative conductor terminal.
In one embodiment, the first 604 and second 606 hollow chambers are made from or could be embedded with a shape memory or piezoelectric material that can be actuated by an electric current to control a direction of movement of the tips 602. In one embodiment, the chambers in a dual-chamber construction could be made of or embed a shape memory or piezoelectric materials that actuate in opposing directions from one another, allowing for plus and/or minus actuation about a center position depending on which chamber is activated. These materials can exist as polymers, ceramics, and alloys, for example. In one embodiment, the shape memory and piezoelectric materials can be fabricated as coils, and do not necessarily have to be hollow chambers. Coils can be effective for actuating the tips vertically along the Z axis (i.e., in the axial direction of the coil). Electrical actuation of the shape memory and piezoelectric materials is via an AC or DC power source having a positive and negative terminal connected to the shape memory or piezoelectric material.
FIG. 4 further illustrates that tips 602 can have openings 904 on the exterior circumference. The hollow half cylinder 604 has first openings 904 along a length of the exterior, and the hollow half cylinder 606 has second openings 906 along a length of the exterior. In one embodiment, the openings 904, 906 can be made by laser-cutting holes (perforations) along the length of tip 602.
In one embodiment, tips 602 can omit openings along the length of the tips, and the tips 602 are provided with openings only at the very ends so as to use the tips 602 for treatment of the scalp. In this way, two different formulations can be delivered from tips 602 via the half cylinder 604 and the half cylinder 606.
In one embodiment, the end of the tips 602 include a perforated flat or domed disk having small openings 610 in the first half cylinder 604 and openings 612 in the second half cylinder 606. In one embodiment, instead of a disk, the half cylinders 604 and 606 can be completely open at the end. Either construction allows dispensing formulation from the ends or along the length of the tips 602 or both along the length and ends of the tips 602.
Referring to FIG. 5, in one embodiment, the tip 702 is constructed by inserting a first hollow small diameter cylinder 704 into a second hollow larger diameter cylinder 706. In one embodiment, the first cylinder 704 is coaxial with the second cylinder 706. The first cylinder 704 may be called the inner cylinder and the second cylinder 706 may be called the outer cylinder. Here, although the tip 702 is in the shape of a “cylinder,”, according to this disclosure a tip can have any cross-sectional shape, including oblong, rectangular, square, or any other polygon.
In one embodiment, the first cylinder 704 and the second 706 cylinder are made from a conductive material such as metal. In one embodiment, the exterior of the first smaller cylinder 704 can be coated with an insulator. An insulator is optional if the first 704 and second 706 cylinders cannot be electrically isolated from each other. In one embodiment, one of the first 704 or second 706 cylinders will be designated a positive conductor terminal and the other cylinder will be designated a negative conductor terminal.
In one embodiment, the first 704 and second 706 hollow chambers are made from or could be embedded with a shape memory or piezoelectric material that can be actuated by an electric current to control a direction of movement of the tips 702. In one embodiment, the chambers in a dual-chamber construction could be made of or embed a shape memory or piezoelectric materials that actuate in opposing directions from one another, allowing for plus and/or minus actuation about a center position depending on which chamber is activated. These materials can exist as polymers, ceramics, and alloys, for example. In one embodiment, the shape memory and piezoelectric materials can be fabricated as coils, and do not necessarily have to be hollow chambers. Coils can be effective for actuating the tips vertically along the Z axis (i.e., in the axial direction of the coil). Electrical actuation of the shape memory and piezoelectric materials is via an AC or DC power source having a positive and negative terminal connected to the shape memory or piezoelectric material.
In FIG. 5, the inner cylinder 704 has first openings 1004 that appear on the exterior of outer cylinder 706; however, openings 1004 can be connected passing through the outer cylinder 706, so that openings are closed off to the outer cylinder 706, for example, by tubes that lead to the inner cylinder 704. The outer cylinder 706 has second openings 1006 along a length of the exterior, wherein openings 1006 only connect to the interior of the outer cylinder 706. In an embodiment, the inner cylinder 704 and outer cylinder 706 are not coaxial with each other, but, the inner cylinder 704 may be placed against the inner wall of the outer cylinder 706, thus, the openings from the inner cylinder 704 may only need to traverse the wall of the outer cylinder 706, thus, avoiding the need to connect openings via tubes. An insulator may need to be interposed between the inner 704 and outer 706 cylinders for electrical isolation. In either construction, two different formulations can be delivered from tips 702 via the inner 704 and outer cylinder 706. In one embodiment, the openings 1004, 1006 can be made by laser-cutting holes (perforations) along the length of tip 702.
In one embodiment, the end of the tips 702 include a perforated flat or domed disk having small openings 710 in the first inner cylinder 704 and openings 708 in the second outer cylinder 706. In an embodiment, instead of a disk, the inner and outer cylinders 704 and 706 can be completely open at the end. Either construction allows dispensing formulation from the ends or along the length of the tips 702 or both along the length and ends of the tips.
In one embodiment, when the tips 602 and 702 are made from conductive materials, one of the cylinders 604 or 606 and 704 or 706 of each of the tips 602 and 702 may serve as a positive terminal and the other to act as a negative terminal for the conduction of electrical charges. This allows powering devices, such a LEDs or sensors.
FIG. 6 illustrates a tip 1100, similar to tip 602 in construction, made from an electrically conductive first hollow half cylinder 1104 placed side-by-side, but electrically isolated, to an electrically conductive second hollow half cylinder 1106, wherein first half cylinder 1104 is designated as a positive or negative terminal, and the second half cylinder 1106 is the terminal of opposite polarity as the first half cylinder 1104. An electrically insulating material or coating can be added between the first 1104 and second 1106 hollow half cylinders for electrical isolation. A power source is connected to the first 1104 and second 1106 half cylinders. In one embodiment, this allows placing one or more light-emitting diodes 1102 at the end of the tip or other locations that is powered by the two half cylinder serving as terminals by being in contact with the positive and negative terminals.
FIG. 7 illustrates a tip 1200, similar to tip 702 in construction, made from an electrically conductive first hollow inner cylinder 1204 placed inside or coaxially within an electrically conductive second hollow outer cylinder 1206, wherein first inner cylinder 1204 is a positive or negative terminal, and the second outer cylinder 1106 is the terminal of opposite polarity to the first cylinder 1204. An electrically insulating material or coating can be added between the first 1204 and second 1206 hollow cylinders for electrical isolation. A power source is connected to the first inner 1204 and second outer 1206 cylinders. In one embodiment, this allows placing one or more light-emitting diodes 1202 at the end of the tip or other locations that is powered by the two cylinders serving as terminals by being in contact with the positive and negative terminals.
In one embodiment, depending on the power of the LEDs 1102 and 1202, thermal dissipation can be absorbed (heatsinked) by the conductive material of the cylinders 1104, 1106, 1204, and 1206.
In one embodiment, when the LEDs 1102 and 1202 are placed at the end of the tips, the LEDs can deliver more energy to the scalp compared to being placed at the base of the tips or when the LED light is delivered through a long fiber-optic path.
In one embodiment, the LEDs 1102 and 1202 can be used for treatment, curing formula, or indicating device status (i.e., operational mode or charging status). LEDs can be any type of a single wavelength (laser LED) or of a range of wavelengths. In one embodiment, LEDs 1102, 1202 are capable of producing light over a broad range of the electromagnetic spectrum. In one embodiment, light therapy has been used on the scalp to treat a skin condition. In one embodiment, light therapy has been used to stimulate the cells of hair follicles. The intensity of the light produced by the LEDs 1102, 1202 can be varied by controlling the current, for example.
In one embodiment, the LEDs 1102, 1202 include one or more Group III-V (GaAs) based LEDs that are capable of emitting electromagnetic radiation at wavelengths in a range spanning from green visible light to near infrared. In one embodiment, the LEDs 1102, 1202 include one or more Group III-nitride blue LED solid state emitters that are capable of emitting electromagnetic radiation at wavelengths in a range spanning from ultraviolet to blue visible light.
In one embodiment, the wavelength output of the LEDs 1102, 1202 includes one or more gallium-indium-nitrogen (GaInN) LEDs that have a wavelength output of about 360-370 nm. In other embodiments, the LEDs 1102, 1202 emit electromagnetic energy in a range of wavelengths from about 200 nm to about 2000 nm, which includes wavelengths in the ultraviolet range (about 350 nm) and near infrared (about 1200 nm).
Referring to FIG. 8, the device 100 is represented schematically to illustrate the main systems.
In one embodiment, the device 100 includes a power supply 128. The device 100 can be powered by alternating current (AC) or direct current (DC). In one embodiment, the device 100 is powered through common household alternating current that relies on an electrical cord (not shown) to supply power to the device 100. In one embodiment, the device 100 is powered through direct current, such as a rechargeable battery that can be charged by plugging into a household alternating current outlet. A direct current powered device 100 allows the device to be used without staying or standing in proximity to an electrical outlet. The power supply 128 is configured to provide power to any of the systems requiring power, such as a controller 148, dispenser 112, massage module 152, vacuum motor 114, camera 160, LEDs 1102, 1202, and at the tips 602, 702, 1100, and 1200.
In one embodiment, the device 100 includes a formulation dispenser 112. In one embodiment, the formulation is stored in a replaceable or refillable cartridge 102. Cartridges 102 can be removable from the device 100 either to be re-filled or for disposal and replacement with a new full cartridge. Once emptied, a cartridge 102 can be replaced with a new cartridge filled with the same or different formulation or the cartridge can be refilled with the same or different formulation. As seen in FIG. 1, the cartridge 102 is inserted through the back of the device 100. The cartridge 102 is connected to supply the scalp or hair formulation to the dispenser 112. In one embodiment, the device 100 can hold multiple cartridges, wherein each cartridge is filled with a different formulation, which can be dispensed to effect different treatments and to different regions of the scalp and hair.
In one embodiment, the cartridge 102 has a product identification tag 154 (FIG. 1) that can convey instructions for operation of the device 100 based on the specific formulation contained in the cartridge 102. The device 100 may include a product identification tag reader 156 (FIG. 1) capable of reading the product identification tag 154 and processing the encoded signals into instructions for operation and control of the device based on the particular formulation. Product identification tags, include for example, bar codes, 2-D bar codes, RFID, and the like. The product identification tag is encoded with machine readable signals that convey the device settings for the particular formulation. Different formulations may have different device settings. For example, the product identification tags can include dispenser setting from liquid to fine, medium, or coarse droplets. Product identification tags can also include the dispenser pattern formation, such as flat fan versus cone, wide versus narrow, solid versus hollow, stream versus mist. Product identification tags can also contain instructions for operating the LEDs 1102, 1202. Different formulations can also be used for treating different regions of the scalp and hair. Different formulations may also be used to provide different treatments to the scalp and hair.
The dispenser 112 can dispense one or more formulations through the tips 602, 702, 1100, 1200 as a fine mist or liquid or any form in-between. In one embodiment, the dispenser 112 includes a compressor, pump, or ultrasonic wave generator to generate a mist from the formulation. In the case of a pump or compressor dispenser 112, such dispenser 112 causes air or the formulation to flow at a high velocity which propels the formulation through a fine openings. In the case of a pump or compressor dispenser, a single dispenser 112 can be placed in the device 100. Then, the outlet of a compressor or pump dispenser 112 is routed through a system of conduits to each of the individual tips.
In an embodiment, the dispenser 112 is an ultrasonic wave nebulizer that generates a mist or vapor to dispense the formulation through individual tips. This has the advantage of gentle dispersion of the formulation to reduce the amount of waste and improves control of coverage. In one embodiment, the nebulizer uses an ultrasonic wave generator that is in contact with the formulation where the frequency of the ultrasonic waves is sufficient to produce the mist. An ultrasonic wave nebulizer also includes a “mesh” nebulizer that has a vibrating mesh just touching the surface of the formulation to create the mist. Either form of ultrasonic wave nebulizer can use a piezoelectric element.
In one embodiment, the ultrasonic wave generator and vibrating mesh nebulizer may both use a piezoelectric material to generate vibrations in the ultrasound frequencies. In one embodiment, the same piezoelectric material that is used in the nebulizer may also be used to drive a haptic system. A haptic system can include a massage therapy system, but, may also include any system that provides a sensory experience, such as heating and related ultrasound therapies. Nebulizers may rely on generating frequencies of over 1 MHz. A nebulizer capable of producing frequencies of over 1 MHz, may also be used to drive a haptic system to generate heat that can be used to treat the skin and scalp either alone or together with the dispensing of formulations. Some nebulizers may also rely on ultrasound frequencies less than 1 MHz. In one embodiment, the nebulizer can be used to drive a haptic system to generate frequencies in a range designed to deliver therapeutic compounds to the skin and scalp in conjunction with the dispensing of formulations. Therefore, there are advantages when the same piezoelectric material that is used in the nebulizer system is used in a haptic system.
In one embodiment, each of the tips may include a valve at the entrance to one or both chambers. The valve has an actuator that opens and closes the valve. Each valve of each tip can be actuated to open or close independently of the other valves of other tips. By opening or closing the valve at each individual tip, the formulation can be controlled to flow out only from selected tips in a controlled pattern, such as cone, flat fan, stream, multiple streams, in pulses, and the like. Further, having a valve to control dispensing from both chambers of a tip allows controlling the formulations to flow out from one or both of the chambers.
FIG. 9 is a schematic illustration showing the ends of the tips 602, 702, 1100, 1200. In one embodiment, the tips are arranged in increasing diameter circular patterns of small 908, medium 910, and large 912 diameters. In one embodiment, only the valves of tips connected by one of the circles 908, 910, or 912 can be opened, leading to dispensing of the formulation in a small cone 908, medium cone 910, and large cone 912, to cover small, medium, and large areas of the scalp or hair. A controller is instructed to open the tips that lie in a pattern to dispense the formulation according to the pattern and closes the tips that do not lie in the pattern. The actuation of valves of individual tips is not limited to only circular patterns. In one embodiment, the valves of tips can be actuated in a linear pattern. Line 914 connects only the tips that would be opened to dispense formulation in a fan pattern, while the remaining tips that do not lie in the linear pattern would be kept closed. Any combination of individual tips can be selected to dispense formulation from only certain tips, but not others, to achieve distinct patterns.
In one embodiment, the dispenser 112 operates by depressing the switch 106 (FIGS. 1 and 2). In one embodiment, the switch 106 is placed on the front side of upper part of the handle 104 to allow operation with the index finger. In one embodiment, the switch 106 is a momentary switch with the default position being the off position. A momentary switch only needs to be activated once, regardless of length of activation, to dispense a measured amount of formulation. Keeping a momentary switch 106 depressed longer does not dispense more formulation beyond the pre-measure amount. In another embodiment, the switch 106 is an on-off switch that starts and stops the dispenser 112 based on opening and closing the switch.
In one embodiment, the valves on tips 602, 702, 1100, and 1200 are only actuated if the individual tip that is selected for dispensing is in contact with the skin. In one embodiment, the tips 602, 702, 1100, and 1200 being made from conductive materials allows the tips to act as contact sensors. In one embodiment, one of the cylinders of each of the tips 602, 702, 1100, and 1200 can act as a positive terminal, while a second cylinder of the same or different tip acts as a negative terminal. In one embodiment, impedance can be measured between any positive terminal of a tip and any negative terminal of a tip to determine if one or more individual tips are in contact with scalp (skin). In one embodiment, impedance can be measured between any positive terminal and the scalp (via a conductive return path to handle)/Determining impedance and contact is useful if the application requires scalp contact; for instance, in a formula treatment and vacuuming system, where the scalp is being treated and the vacuum is at risk of vacuuming hair if the device is not operating directly on the scalp.
In one embodiment, the measure of impedance can also be used to calculate scalp moisture level at a specific point or over a more general region. In one embodiment, impedance can be measured from different tips to determine scalp moisture level across wider regions.
In one embodiment, a contact sensor 162 can be placed at the tip ends. In one embodiment, the contact sensor 162 includes open or short detectors or dielectric sensors. An open detector can refer to an open circuit detector for detecting a broken (open) continuity in an electrical transmission. A short detector can refer to detection of low electrical resistance. A dielectric sensor is also referred to as a capacitance detector which can detect a change in dielectric permittivity. In one embodiment, the contact sensor 162 may be a sensor that detects contact or no contact of an individual tip. In one embodiment, the contact sensor 162 may indicate the amount of contact. An example of a contact sensor that can detect an amount of contact is a piezoelectric sensor.
In one embodiment, the device 100 includes an massage module 152. A massage module 152 is any circuitry configured to control the actuation of any number of individual tips 602, 702, 1100, and 1200 to vibrate. In this embodiment, tips are individually controlled to vibrate as compared to oscillation of an entire brush head. The massage module circuitry can reside within the controller 148 or be a separate component. The massage module 152 circuitry controls the individual tips to actuate in one to three axes (XYZ). Activation of the tips to vibrate may be started by a switch 164. In one embodiment, each tip 602, 702, 1100, 1200 on the brush head 140 has its own actuators to vibrate each individual tip in one to three axes. In one embodiment, actuators can include shape memory or piezoelectric materials. As described above, conductive cylinders can be constructed from or embedded with shape memory or piezoelectric materials to actuate vibrations.
Referring to FIG. 10, one embodiment of a tip 602, 702, 1100, 1200 includes a first pair of actuators 1008, 1010, placed or embedded on the cylinder of the tip in diametrically opposed locations from each other. The actuators 1008, 1010 extend axially along the length of the tip. The actuators 1008, 1010 can be actuated one at a time to create a side-to-side motion, such as in the X-axis. The tip includes a second pair of actuators 1012, 1014, placed or embedded on the cylinder of the tip in diametrically opposed locations from each other, and separated ninety degrees from actuators 1008, 1010. The actuators 1012, 1014 extend axially along the length of the tip. The actuators 1012, 1014 can be actuated one at a time to create a side-to-side motion, such as in the Y-axis. The actuators 1008, 1010, 1012, 1014 are coupled on the conductive substrate of the tip and rely on the transverse piezoelectric effect to produce contraction and a bending motion in one direction when a voltage is applied across the piezoelectric material and the substrate. In this manner, side-to-side actuation is possible in both the X and Y axes.
For vibration in the Z-axis or up and down vibration, the top end of the tip can rest against a shape memory coil 1016 which can be actuated to vibrate up and down. Although one embodiment of using piezoelectric and shape memory materials is illustrated, other configurations are possible based on the disclosure. Piezoelectric materials can also be produced as tubes or stacked to cause up and down vibration, while shape memory alloys can be provided as strips to cause side-to-side, bending, or shearing motions for X and Y axes vibration. Any combination of one or more piezoelectric or shape memory alloys can be used to provide the tips with vibration in one to three axes.
In one embodiment, the device 100 includes a vacuum system 114 having a vacuum generating motor and collector 116. In one embodiment, a motor can be a variable speed motor. The vacuum motor 114 is connected to impeller vanes that cause a stream of air to enter through one of the cylinders of the tips 602, 702, 1100, and 1200. The motor induces a stream of air to enter through the tip openings. The stream of air can carry the used formulation along with any debris and oils washed out of the hair by the formulation, which then gets captured by a collector 116, and the air is expelled out of the device 100. In one embodiment, the collector 116 includes an annular vent placed at the back of the device 100. The vent allows the stream of air to exit the device 100, while the used and debris become trapped in the collector 116.
In one embodiment, the vacuum motor 114 is operated by the multi-positional, multi-functional, selector switch 110 (FIG. 3). A selector switch 110 can be a slide switch or a dial switch with more than two positions, or a push button switch with more than two positions, for example. In one embodiment, a vacuum selector switch 110 includes settings for off and more than one vacuum speed setting, such as high and low. In one embodiment, the vacuum switch 110 is placed on the back side of lower part of the handle 104 to allow operation with the thumb, for example. The vacuum switch 110 can be isolated for uninterrupted vacuum. Light-emitting diodes 118 can be used to light up the selected position. The selector switch 110 remains in the selected position until moved to another position. In one embodiment, a momentary switch can replace the selector switch, wherein the default position of the momentary switch is the off position, and the momentary switch has to be depressed to start the vacuum motor. In one embodiment, the device 100 includes both a vacuum selector switch and momentary switch, wherein the momentary switch is used to operate the vacuum motor when depressed, and at the speed setting on the selector switch.
In one embodiment, the device 100 includes a diagnosis module 160. The diagnosis module circuitry can reside within the controller 148 or be a distinct module. In one embodiment, the diagnosis module 160 has circuitry configured to relate the absorption of light of a certain wavelength to a skin or hair condition. In one embodiment, skin and hair conditions related to hair density, tone, and dryness can be identified by measuring the absorption of light. The diagnosis module 160 makes skin and hair diagnosis based on images from a camera 158. Camera 158 may reside on the end of the tips or be located on the device 100. In one embodiment, the camera 158 may be a semiconductor integrated circuit that converts light into images, such as a charge coupled device (CCD) or pixel sensors. In one embodiment, diagnosis of skin and hair conditions are determined by selective filtering, by wavelength selective absorption within multiple photodetector layers, or by any other method. In one embodiment, a spectral absorption feature for a given chromophore in skin is manifested as dark spots on an image recorded by camera 158. The absorbance and emission characteristics of various skin conditions are stored in the controller memory, and the diagnosis module 160 makes comparisons of the images to the characteristics indicative of various skin conditions. When the diagnosis module 160 determines a match with a skin or hair condition, the diagnosis module 160 can send instructions via the controller 148 to dispense a certain formulation or apply a certain wavelength of light via the LEDs 1102, 1202.
In one embodiment, the device 100 includes a controller 148. In one embodiment, the controller 148 is a digital device. The controller 148 may include one or more hardware circuits connected on a printed circuit board, or all of circuits may exist on a single chip. The controller 148 may include at least a microprocessor core and a memory. The hardware can be designed for use in small hand operated devices. The microprocessor may be implemented as multiple processors cooperatively working in parallel and series to perform instructions according to pre-programmed logic.
Instructions to control the dispenser 112, massage module 152, vacuum 114, diagnosis module 160 can be stored in the controller memory. A memory is any type of computer-readable medium or computer storage device that can be accessed and used by one or more microprocessors to carry out the instructions. Instructions may be stored in a high-speed memory such as a EEPROM, Flash memory, RAM, or other programmable non-volatile memory.
The controller 148 communicates with the dispenser 112, massage module 152, vacuum 114, and diagnosis module 160 to make decisions and control the output from the device based on inputs received form the tips 602, 702, 1100, 1200 themselves, the LEDs 1102, 1202, contact sensor 162, and camera 158.
In one embodiment, the controller 148 can also interpret the information provided on cartridges 102 to give instructions to the dispenser 112 that are specific to the formulation. The controller 148 can control to open and close all of the tips 602, 702, 1100, and 1200 to allow formulation to be dispensed through individually selected tips in a pattern.
In one embodiment, the controller 148 has circuitry to determine the impedance between terminals of any one or more tips to determine which tips are in contact with the skin and which tips are not in contact with the skin. The controller 148 can then open those valves on the tips that are in contact and close the valves that are not in contact, and give permission to the dispenser to proceed with dispensing formulation through the tips in contact with skin.
In one embodiment, the controller 148 uses the impedance to determine whether the tips are in contact with the scalp. In one embodiment, the controller 148 can turn off the vacuum 114 or not allow the vacuum to be turned on when it is determined that one or more tips are not in contact with the scalp.
In one embodiment, the controller 148 can use a measure of the impedance to determine the moisture of one or more regions on the scalp.
In one embodiment, the controller 148 receives signals from the contact sensor 162 to determine whether or not tips are in contact with the skin.
In one embodiment, the controller 148 has circuitry to control the opening of valves of only those tips that will produce a selected spray pattern.
In one embodiment, the controller 148 has circuitry to control the amount of formulation that is dispensed by the dispenser.
In one embodiment, the controller 148 has circuitry to determine which ones of the tips are actuated to vibrate and in which axis.
In one embodiment, the controller 148 has image processing circuitry to convert signals from the camera and perform spectral analysis.
In one embodiment, the controller 148 is configured to provide power to any one or more of the tips.
In one embodiment, the controller 148 has circuitry to turn on the LEDs 1102 and 1202 based on pre-determined instructions. For example, some formulations may call for applying light in a certain wavelength. The controller 148 may be used control the LEDs 1102 and 1202 to provide a light therapy treatment. The controller 148 has instructions for determining the wavelength and power to be applied for the light therapy.
In one embodiment, the controller 148 has circuitry to control the amount of formulation that is dispensed by the dispenser 112. For example, the controller 148 can turn on a pump or compressor for a predetermined amount of time that correlates to a specific amount of formulation. In one embodiment, the dispenser 112 uses a positive displacement pump, therefore, the volume displaced for each rotation of the pump can be measured with an encoder. When the rotations of the pump equal the volume of formulation to be dispensed, the controller 148 can turn off the pump.
In one embodiment, the controller 148 has circuitry configured to control the dispenser 112 to dispense a measured volume of formulation through one or more of the tips only when the controller 148 senses that the tips are in contact with the scalp.
In one embodiment, the controller 148 has circuitry configured to diagnose scalp and hair conditions related to hair density, tone, and dryness through a camera or an impedance sensor.
In one embodiment, the controller 148 has circuitry configured to control LEDs to output a certain wavelength and power for applying a light treatment, to facilitate camera imaging, or be used to cure formulations.
In one embodiment, the controller 148 has circuitry configured to control the vibration of selected individual tips.
In one embodiment, the controller 148 has circuitry configured to control the dispensing of a measure amount of formulation through selected individual tips only upon detecting the tips are in contact with the scalp/skin.
Use of the device 100 is instinctive, the overall shape of the device 100 is familiar to users from other hair appliances, such as a hair dryer, leading to simple intuitive use of the device 100. The device 100 can improve on current use of aerosol dry shampoos. The device 100 contrasts with an aerosol spray can that sprays more than is needed and produces a large cloud that covers an area well outside the user's head. Furthermore, the device 100 has tips that allow added functionality.
While illustrative embodiments have been illustrated and described, it will be appreciated that various changes can be made therein without departing from the spirit and scope of the invention.

Claims

the embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:

1. A hair and scalp treatment device, comprising:

a dispenser connected to a cartridge, wherein the cartridge comprises a formulation;

a plurality of tips on the device, wherein the tips have at least one opening to dispense the formulation; and

a controller configured to control the dispensing of the formulation through one or more tips individually.

2. The device of claim 1, wherein the controller controls opening the tips to dispense the formulation in a pattern and closes the tips that do not lie in the pattern.

3. The device of claim 1, wherein the controller dispenses formulation only through tips that are sensed to be in contact with skin.

4. The device of claim 1, wherein the dispenser includes a nebulizer to dispense the formulation as a mist.

5. The device of claim 1, wherein the tips are arranged on a brush head.

6. The device of claim 1, wherein the tips include a first and second hollow chamber.

7. The device of claim 1, wherein the controller is configured to dispense the formulation through selected tips, but not all tips, the selected tips are arranged to dispense the formulation in a cone pattern or a fan pattern or both cone and fan patterns.

8. The device of claim 1, further comprising a camera and a diagnosis module, wherein the diagnosis module is configured to diagnose a scalp or hair condition based on images received from the camera.

9. The device of claim 1, wherein the device is configured to replace cartridges.

10. The device of claim 1, further comprising one or more LEDs on the device, wherein the LEDs are controlled to deliver a selected wavelength and power.

11. A hair and scalp treatment device, comprising:

a plurality of tips on the device, wherein the tips include actuators that vibrate the tips in a first axis; and

a controller configured to control the vibration of the tips individually.

12. The device of claim 11, wherein the tips comprise a second actuator to vibrate the tips in a second axis.

13. The device of claim 11, wherein the tips comprise a third actuator configured to vibrate the tips in a third axis.

14. The device of claim 11, wherein the actuators comprise a shape memory alloy or a piezoelectric material or a combination.

15. The device of claim 11, wherein the controller is configured to select which of the plurality of tips to vibrate.

16. The device of claim 11, wherein the actuator comprises a pair of piezoelectric materials placed opposite from each other.

17. The device of claim 11, wherein the tips comprise two hollow chambers extending the length of the tip.

18. The device of claim 11, wherein the tips are conductive.

19. The device of claim 11, wherein the tips are attached to a brush head, wherein the brush head is statically connected to the device, and the tips vibrate without the brush head oscillating.