CN101606783A

CN101606783A - The toothbrush that contains radiating light source

Info

Publication number: CN101606783A
Application number: CNA2008101290701A
Authority: CN
Inventors: 陈东敏
Original assignee: SUZHOU INST OF TECHNOLOGY INST OF PHYSICS CHINESE ACADEMY OF SCIENCES
Current assignee: SUZHOU INST OF TECHNOLOGY INST OF PHYSICS CHINESE ACADEMY OF SCIENCES
Priority date: 2008-06-19
Filing date: 2008-06-19
Publication date: 2009-12-23

Abstract

A kind of toothbrush that contains radiating light source comprises interconnective hollow shank and hollo head; And be positioned at least one face on the toothbrush head; Hairbrush and at least one light-emitting window that is not blocked by hairbrush with certain-length are set on this face; This toothbrush hollow shank and interior power supply, drive circuit and the optical couping device that is connected successively that be provided with of hollo head; This optical couping device comprises light source, the photoconduction that connects successively and is arranged on the lens combination at light-emitting window place.The present invention can be when cleaning dental surface with water, and the light wave that will have certain energy shines directly on the photosensitive bactericide that spreads upon tooth and gingival areas, kills the structural bacterium of gum pathology effectively, and can not damage periodontal ligament cell; Simultaneously, avoid human body directly to contact, and when changing toothbrush head, need not to reduce the cost of toothbrush head together with changing light source with the luminescent material of light source.

Description

The toothbrush that contains radiating light source

Technical field

The present invention relates to be used for the health-care hospital apparatus of mouth disease, particularly a kind of toothbrush that contains radiating light source of using the optical dynamic therapy periodontitis.

Background technology

Periodontosis is one of two big modal diseases in the human oral cavity, and periodontitis will cause around teeth to form the cavity, tooth mobility, even the early fallout of tooth as not treatment in time.Periodontitis is the main cause of " very old ", is the first reason that the adult has tooth pulled out.The illness rate of periodontal disease has become the matter of utmost importance of harm people oral health apparently higher than the dental caries disease, and periodontosis is also influential with disease to whole body health.The periodontitis optical dynamic therapy is meant: utilize sensitising agent or its metabolite, it can optionally accumulate on the target tissue (pathological tissues), produces photodynamic reaction under the exciting of suitable wavelength light, thereby destroys the chemical substance of target cell on the tooth; More specifically: photosensitizer molecule is accepted illumination, absorbs the energy of photon, and photochemical reaction takes place in target cell, the active oxygen that produces has CDCC, oxidation biomolecule efficiently, the necrosis of inducing bacterium at last, and to other normal oral cavity tissue non-invasis.

The Chinese patent notification number is that the patent of invention of CN 1939919A has proposed a kind of novel wide spectrum, hypotoxic bactericide, is 2-mono carboxylic substituted zinc phthalocyanine-oligomerization lysine conjugates.This bactericide can kill different types of bacterium, has certain broad spectrum activity.This bactericide produces singlet oxygen and comes killing bacteria under very little concentration and light dosage, this bactericide contains the mark substance that can combine with the bacterium surface specificity, can reach the specificity killing bacteria and does not injure normal cell, so this bactericide has hypotoxicity.Test shows: this bactericide porphyromonas gingivalis just has good lethal effect under low energy densities effect very.Be about 7J/cm at a certain specific drug concentration and energy density ²The time inhibiting rate can reach more than 99%; Be about 15J/cm in energy density ²The time, be 97.82% to the inhibiting rate of porphyromonas gingivalis, and only be 16.82% the inhibiting rate of people's periodontal ligament cell.

But at present more existing innovation and creation about light emitting toothbrush, these light emitting toothbrushes are except the surface with toothbrush requires, and inside also is provided with electric elements such as power supply, drive circuit, light source.But the luminous component of these light emitting toothbrushes is Light-Emitting Diode mostly, be used for decorating, or the timing demonstration, use for the nursing dental surface though also have individually.This class toothbrush can not be used to and spread upon the illumination that near the photosensitive bactericide of gum provides required wavelength and energy, does not have the effect of photodynamic therapy.

The invention of existing light emitting toothbrush, light source is placed the head of toothbrush, because light-emitting component (for example light emitting diode) can directly contact with human oral cavity when using, so there are following some drawbacks, even can work the mischief to human body: the luminous material of main part of light emitting diode or diode laser is made of the semiconducting compound of GaAs, this class of gallium nitride mostly, and it has certain toxicity to human body; So needing tight encapsulating structure could use this toothbrush, and the price of encapsulating material and packaging technology is more expensive, cause the cost of toothbrush to raise; In addition, in case encapsulation is improper or be immersed in water when using or because of reasons such as material aging cause breaking, the toxic compounds in light emitting diode or the laser diode can leak unavoidably to some extent because of quality testing, so will directly influence health.Simultaneously, the hairbrush of toothbrush can be aging after through the use in one period, and toothbrush head needs to upgrade, and scraps the light source that is arranged in the toothbrush head and each replacing all can be unnecessary, such as the higher element of prices such as diode laser, thereby cause higher use cost.

Summary of the invention

The objective of the invention is to propose a kind of toothbrush that contains radiating light source, its light source with light emitting diode or laser diode etc. is arranged on the toothbrush handle part hollow position, optocoupler is merged the light-emitting window that is transferred to toothbrush head by photoconduction; Can be implemented in thus when cleaning dental surface with water, the light wave that will have certain energy shines directly on the photosensitive bactericide that spreads upon tooth and gingival areas, makes bactericide kill the structural bacterium of gum pathology effectively, and can not damage periodontal ligament cell; Simultaneously, can avoid human body to contact, and when changing toothbrush head, need not to reduce the cost of toothbrush thus greatly together with changing light source with the direct of luminescent material of light source.

For reaching above-mentioned purpose, the invention provides a kind of toothbrush that contains radiating light source, its technical scheme is: this toothbrush comprises interconnective hollow shank and hollow head; Characteristics are: at least one face is arranged on the described toothbrush head; On described, be provided with and have the hairbrush of certain-length and the light-emitting window that at least one is not blocked by hairbrush;

The optical couping device that be provided with power supply, the drive circuit that is connected with power supply in the hollow shank of described toothbrush and the hollow head, is connected with drive circuit;

Described optical couping device comprises the light source that directly is connected with drive circuit, the photoconduction that is connected with this light source, be connected with this photoconduction and lens combination that be arranged on the light-emitting window place;

The light that described light source sent, the lens combination through described photoconduction and light-emitting window place transfers out from light-emitting window.

Described toothbrush head is separable with being connected of toothbrush handle part place; The place of interconnecting of described toothbrush head and toothbrush handle part forms waterproof sealing.

Described light source is positioned at the hollow shank of toothbrush; This light source is single or multiple light emitting diodes, or single or multiple laser diode; That its optical wavelength of sending is in is infrared, visible light and ultraviolet region, and power is that 1 milliwatt is to 10 milliwatts; Further, the optical wavelength that this light source sends be 650 nanometers to 690 nanometers, power is that 1 milliwatt is to 10 milliwatts.

The combination of described lens forms waterproof sealing with light-emitting window on the face of described toothbrush head respectively; This lens combination that is positioned at the light-emitting window place is that focus is positioned near lens or the plane window in bristle point plane.

Described photoconduction constitute collector lens, photocon, semi reflective mirror and the light microscopic that is all-trans on same optical axis; The minute surface of the described semi reflective mirror and the light microscopic that is all-trans and described optical axis and the optical axis that is positioned at the lens at light-emitting window place become miter angle; The described semi reflective mirror and the light microscopic that is all-trans will be divided equally and reflex to described light-emitting window place from the light of light source; Described photocon is solid construction or hollow-core construction, is column or taper; Described guide structure is separable with toothbrush head with being connected of toothbrush handle part place: described collector lens is fixed on described toothbrush handle part or toothbrush handle part place, the described semi reflective mirror and the light microscopic that is all-trans are fixed on the toothbrush head place, and described photocon is fixed on toothbrush head or toothbrush handle part place; Described toothbrush head and the toothbrush handle part place of interconnecting form waterproof sealing.

The formation of described photoconduction can also be one or more groups collector lens, photocon and light microscopic that is all-trans on same optical axis; The minute surface of the described light microscopic that is all-trans and described optical axis and the optical axis that is positioned at the lens at light-emitting window place become miter angle; The described light microscopic that is all-trans will reflex to described light-emitting window place from the light of light source; Described photocon is solid construction or hollow-core construction, is column or taper.Described guide structure is separable with toothbrush head with being connected of toothbrush handle part place: described collector lens is fixed in the described toothbrush handle part, the described light microscopic that is all-trans is fixed on the toothbrush head place, and described photocon is fixed on toothbrush head or toothbrush handle part place; Described toothbrush head and the toothbrush handle part place of interconnecting form waterproof sealing.

The formation of described photoconduction can also be one or more groups collector lens and the optical communication means of being made up of optical fiber; Described optical fiber two ends are coupled with described collector lens and the lens light that is positioned at the light-emitting window place respectively; Described optical fiber will be transferred to the light-emitting window place from the light of light source.

The formation of described photoconduction can also be one or more groups collector lens on same optical axis and the light microscopic that is all-trans; The minute surface of the described light microscopic that is all-trans and described optical axis and the optical axis that is positioned at the lens at light-emitting window place become miter angle; The described light microscopic that is all-trans will reflex to the light-emitting window place from light source and the light of propagating through free space; Described guide structure is separable with toothbrush head with being connected of toothbrush handle part place; Described collector lens is fixed in the shank of toothbrush, and the described light microscopic that is all-trans is fixed in the head of toothbrush; The place of interconnecting of described toothbrush head and toothbrush handle part forms waterproof sealing.

Described photoconduction constitute collector lens on same optical axis, the semi reflective mirror and the light microscopic that is all-trans; Described collector lens, semi reflective mirror and completely reflecting mirror are fixed in the interior hollow sting of described toothbrush handle part, and described support is provided with and separable light-emitting window corresponding with the light-emitting window on the toothbrush head; The optical axis of the light-emitting window in the minute surface of described semi reflective mirror and completely reflecting mirror and this support becomes 45 degree.Described toothbrush head is separable with being connected of toothbrush handle part place; The place of interconnecting of described toothbrush head and toothbrush handle part forms waterproof sealing.

Described power supply can be a disposable battery; Be provided with the opening that is used to change disposable battery at place, the bottom of described toothbrush handle part and form the bottom of waterproof sealing with described opening.

Described power supply can be rechargeable battery and corresponding charging circuit; The charging circuit of this rechargeable battery is the separable induction charging device of non-contact electrode.

Further, the present invention also is provided with in the outside of described toothbrush handle part and is used to start and the power switch button of cutting off the electricity supply and being connected with drive circuit, and this power switch button is positioned at the inside that the waterproof sealing structure that contacts is not arranged with water; Described circuit also comprises timer and the bell ringing device that is connected with power supply, be used for sending the tinkle of bells after arriving the predefined time; The predefined time of described timer is 2～3 minutes.

The toothbrush that contains radiating light source provided by the invention is applicable to the light radiation toothbrush of the employed periodontitis PDT of clinical or daily health caring.The light that light source sent in the toothbrush is accurate refractive power or the poly-light of handing over, photosensitive bactericide is coated be put on the tooth pathological tissues after, photosensitive bactericide can obtain to meet the illumination that concentration of energy that photochemical reaction requires is supplied with, killing and wounding or to kill the bacterium that causes periodontitis effectively, and to other normal oral cavity tissue not damageds.

Simultaneously, in the toothbrush that contains radiating light source provided by the invention, light source is arranged on the toothbrush handle part hollow position, optocoupler is merged the light-emitting window that is transferred to toothbrush head by optical fiber; So can avoid human body to contact, and when changing toothbrush head, need not to reduce the cost of toothbrush thus greatly together with changing the higher element of this class cost of light source with the direct of luminescent material of light source.

Description of drawings

Fig. 1 is the structural representation that contains the radiating light source toothbrush provided by the invention;

Fig. 2 a is the internal structure schematic diagram that contains the embodiment 1 of radiating light source toothbrush provided by the invention;

Fig. 2 b is the internal structure schematic diagram that contains the embodiment 1 of radiating light source toothbrush provided by the invention;

Fig. 3 a is the internal structure schematic diagram that contains the embodiment 2 of radiating light source toothbrush provided by the invention;

Fig. 3 b is the internal structure schematic diagram that contains the embodiment 2 of radiating light source toothbrush provided by the invention;

Fig. 4 a is the internal structure schematic diagram that contains the embodiment 3 of radiating light source toothbrush provided by the invention;

Fig. 4 b is the internal structure schematic diagram that contains the embodiment 3 of radiating light source toothbrush provided by the invention.

The specific embodiment

The optimal selection of light source of the present invention is Light-Emitting Diode or laser diode.Light-Emitting Diode or laser diode have that volume is little, and price is low, and electro-optical efficiency height, required drive circuit are also simple relatively.The emission principle of laser and the particularity of production process have determined that laser has the advantages that normal optical does not have: promptly three good (monochromaticjty is good, the coherence is good, good directionality) height (brightness height).The frequency high concentration of laser (monochromaticjty is good), laser energy be in the spatial distribution high concentration, also high concentration on launch time.Just because of these reasons, laser just have ordinary light source incomparable advantage, powerful effect is also arranged in medical treatment.1, heat effect: mainly be that laser in visible light and infrared light scope causes.Weak laser can directly not cause irreversible damage, can impel blood vessel dilatation, and blood flow is strengthened, thereby improves local nutritional status, and drug distribution and reaction promote wound and ulcer healing, also have effects such as analgesia and relieve muscle spasms.2, photochemical effect: utilize laser energy to swash in vivo some chemical reaction.Comprising photic decomposition (absorb luminous energy and cause the process of chemical breakdown), photooxidation (under the light action, reactant loses the process of electronics), photo polymerization is (under the light action, little molecule aggregation becomes macromolecular process), photic sensitization four kinds of main types such as (in the presences of sensitising agent, the chemical reaction that produces with the light action of specific wavelength).Photoactivate treatment is to be the photodynamic therapy of representative with the hematoporphyrin derivative, in order to destruction of cancer cells, needs oxygen molecule to participate in and just can react.The not aerobic molecule of another kind of sensitising agent such as psoralen is participated in.The Ultra-Violet Laser local irradiation is used after being coated with and mending bone ester tincture again in the part, can treat diseases such as leucoderma and psoriasis.3, spread effect: mainly refer to of the effect of the lower laser of power to body.Can promote nerve regneration, hair growth, the haemocyte of reduction gos up, and makes growth of spur make union rapidly, but thereby bacteria growing inhibiting anti-inflammatory analgetic also.

Below in conjunction with accompanying drawing 1～Fig. 4,, describe technical scheme of the present invention in detail by some embodiment:

Embodiment 1

In conjunction with reference to figure 1 and Fig. 2, the invention provides a kind of external structure that contains the toothbrush 101 of radiating light source and comprise the hollow shank 102 of connection successively and hollow head 103; The place of interconnecting between them forms waterproof sealing, and water can't contact circuit block and the optical coupling parts that place hollow position with toothpaste (or ointment) when using with assurance;

A face 104 is arranged on the toothbrush head 103, and it can be the plane, also can be the less curved surface of radian; Similar to common toothbrush; Have the hairbrush 105 of certain-length in the toothbrush head setting, sub-clustering embeds on this face 104, and hairbrush 105 is parallel to each other and is approximately perpendicular to the face of being fixed 104; Be provided with 2 light-emitting

windows

106 and 107 that do not blocked for described 104 by hairbrush;

The optical couping device that in the hollow shank 102 of described toothbrush and hollow head 103, be provided with power supply 119, the drive circuit 115 that is connected with power supply 119, is connected with drive circuit 115.Under the general situation, power supply 119 and coupled drive circuit 115 place the hollow position of toothbrush handle part 102, and optical couping device is positioned at the hollow position of toothbrush head 103 and toothbrush handle part 102, and this optical couping device comprises the light source 114 that directly is connected with drive circuit 115, the photoconduction that is connected with this light source 114, be connected with this photoconduction and lens combination that be arranged on the light-emitting window place;

Shown in Fig. 2 a or 2b, described light source 114 can be single light emitting diode, or single laser diode, and that its optical wavelength of sending is in is infrared, visible light and ultraviolet region, and power is that 1 milliwatt is to 10 milliwatts; When with novel wide spectrum, when hypotoxic bactericide toothpaste is used, the optimal light wavelength of light source is 650 to 690 nanometers.As the light emitting diode or the laser diode of light source 114, it is little all to have a volume, intensity height, cost performance advantages of higher; And laser diode has collimation again, and the feature that the coherence is good can satisfy the required luminous flux of photosensitization; Consider safety, when using laser diode as light source, the intensity that penetrates from each light-emitting window will be lower than 5 milliwatts.

The light that sends from light source 114 is transferred to the hollow position that light-emitting

window

106 and 107. optical couping devices generally are placed in toothbrush head 103 and toothbrush handle part 102 through optical couping device, dock with light source 114 at toothbrush handle part 102 hollow positions. this embodiment, avoided light emitting source is put into the oral cavity, can not cause the virulent accident of human body is taken place because of the leakage of illuminator element.

Shown in Fig. 2 a, shown applied a kind of guide structure in the toothbrush of the present invention, utilize this guide structure, the coupling of light and transmission means are: light source 114 is single light source laser instruments, it is single laser diode, its light that sends is aggregated into photocon 123 through collector lens 113, and semi reflective mirror 110, the 50% light transmission semi reflective mirrors 110 that are sent to 112 one-tenth miter angles of minute surface and light path through photoconduction arrive at minute surface becomes miter angle with light path the light microscopic 111 that is all-trans again; Be divided into two-beam from the light of photocon 123 outputs through semi reflective mirror 110, and through the semi reflective mirror 110 and the light microscopic 111 that is all-trans, corner 90 degree through being separately positioned on the

optical lens

108 and 109 at 2 light-emitting

windows

106 and 107 places, finally penetrate from light-emitting window 106 and 107.

Optical lens

108 and 109 gathers light to be handed in the distant place on toothbrush high-quality green tea plane, thereby obtains higher light intensity at tooth and gum place.When luminous intensity is enough high, or exports light and needn't gather when handing over,

optical lens

108 and 109 also can be substituted by general optical window; In addition, also can adopt other lenses as required, increase hot spot. consider the safety to human body, the laser intensity of each light-emitting window will be lower than 5 milliwatts.

Photocon 123 shown in Fig. 2 a is with collector lens 113, semi reflective mirror 110 and the light microscopic 111 integrated one simple guide structures that are all-trans; Photocon 123 can be hollow or solid; After the assembling, light source 114 drops on the focus of condenser 113; The structure of photocon 123 can be cylinder or square column type, also can be tapered (being the cross section of the cross section of light-emitting window less than light inlet); Also light source 114 directly can be stretched into the porch of photocon 123, omit collector lens 113.

In another kind of embodiment, photocon 123 also can be an optical fiber; Fibre-optic advantage is to have flexibility, can change light path very easily, even can omit the semi reflective mirror 110 and the light microscopic 111 that is all-trans, and directly transports light near light-emitting

window

106 and 107; With the optical fiber coupling, can be used in structure more special toothbrush, particularly head and the out-of-line toothbrush of shank.In another kind of embodiment, can adopt a plurality of (greater than 2) the part reflective mirror and the combination of the light microscopic that is all-trans that incident light is divided into most light, and by a plurality of light-emitting windows outputs. similarly other guide structures all belong to category of the present invention.

The embodiment of applied another kind of guide structure is shown in Fig. 2 b in the toothbrush of the present invention, be head 103 places that the semi reflective mirror 110 and the light microscopic 111 that is all-trans are fixed on toothbrush, collector lens 113 is fixed on toothbrush handle part 102 places, at semi reflective mirror 110, to be all-trans between light microscopic 111 and the collector lens 113 be free space, the optical coupling element that does not need this class of photocon, the light of light source 114 through light path 112 with light from the

exit

106 and 107 transmission come out.

Water or contain the toothpaste contact of medicine and damage the optics or the electric parts of toothbrush inside when using, two light exits 106 on the face on the toothbrush head 103 104 and 107 and two

optical lenses

108 and 109 or optical window formation waterproof sealing.

In the toothbrush shown in Fig. 2 a and Fig. 2 b, power supply 119 is disposable battery (not rechargeable batteries), the lower end of its toothbrush handle part that is installed in 101, on the bottom 121 of this toothbrush handle part 101, be provided with opening 120 and bottom 122, be used to change disposable battery 119, bottom 122 forms waterproof sealing with toothbrush handle part 101.

In another embodiment, the power supply 119 of toothbrush also can be a rechargeable battery; Rechargeable battery is connected with charging circuit, and this charging circuit is the separable induction charging device of non-contact electrode.

Shown in Fig. 2 a and Fig. 2 b, be provided with the power switch button 118 of waterproof in toothbrush handle part 101 outsides; Hollow interior at described toothbrush handle part 101 is provided with timer 116 and the bell ringing device 117 that is connected with power supply 119; After pressing power switch button 118 power-on 119, power supply 119 is connected with drive circuit 115, drive timer 116 and pick up counting, in case just send the tinkle of bells after arriving the predefined time by bell ringing device 117, cut off the electricity supply automatically simultaneously 119 with being connected of drive circuit 115; The described 116 predefined times of timer are 2～3 minutes.

Embodiment 2

In conjunction with reference to figure 1, Fig. 3 a and Fig. 3 b, containing the toothbrush 101 of radiating light source in the present embodiment is with the main distinction among the embodiment shown in Fig. 2 a and Fig. 2 b: use laser diode or the light emitting diode 114A and the 114B of two light sources in the optical couping device, drive circuit 115 can two light sources of corresponding driving; Being positioned at the light source 114A of

collector lens

113A and 113B focus and light that 114B sends sends respectively and is coupled into two

photocon

112A and 112B through

collector lens

113A and 113B, become be all-trans the light microscopic 111A and the 111B of miter angle respectively with light path through minute surface, reflect light to optical lens or

optical window

108 and 109 at light-emitting

window

106 and 107 places, penetrate by light-emitting window 106 and 107.Adopt the benefit of two light sources to be to use half light source of power, omitted the semi reflective mirror simultaneously and adopt two light microscopics that are all-trans.

Shown in Fig. 1 and Fig. 3 a, be similar to the embodiment shown in Fig. 2 a,

photocon

112A and 112B can be solid or

hollow.Collector lens

113A and 113B,

photocon

112A and 112B, the light microscopic 111A that is all-trans can be integrated into two identical guide structures respectively with 111B, also can all be integrated into a guide structure.In addition, can also adopt optical fiber to transmit, thereby omit be all-trans light microscopic 111A and 111B as photocon.

Shown in Fig. 1 and Fig. 3 b, be similar to the embodiment shown in Fig. 2 b, also can omit light guide member and adopt the transmission of free space optical to realize the present invention.The light of

light source

114A and 114B is in the free space propagation and through light microscopic 111A and 111B corner 90 degree of being all-trans, and 106 and 107 transfer out from the exit.

The toothbrush (as shown in Figure 3) that contains two light sources described in this embodiment extends to the similar embodiment that contains a plurality of light sources.

Embodiment 3

In conjunction with reference to figure 1 and Fig. 4 a, this toothbrush 101 that contains radiating light source with the main distinction part of the embodiment shown in the earlier figures 3b is: described toothbrush head 103 is separable with being connected of toothbrush handle part 102 places.When their when being assembled into a complete toothbrush, toothbrush head 103 and toothbrush handle part 102 be connected the formation waterproof sealing.Light source is laser diode or the light emitting diode 114A and the 114B of two light sources, and

collector lens

113A and 113B are fixed on the hollow position of toothbrush handle part 101, and completely reflecting

mirror

110 and 111 is fixed near the light-emitting

window

106 and 107 of toothbrush head 103; When toothbrush head 103 was attached to toothbrush handle part 102, completely reflecting

mirror

110 and 111 minute surface became miter angle with the optical lens at light-emitting window place or optical window 108 with 109 optical axis and with the optical axis of

collector lens

113A and 113B respectively; The light that sends from

light source

114A and 114B forms two light beams through

collector lens

113A and 113B, be transferred to the completely reflecting

mirror

110 and 111 that is arranged on toothbrush head 103 through free space, light path turn 90 degrees the angle after the optical lens of light-emitting window or

optical window

108 and 109 penetrate.

In another embodiment, light through

condenser

113A and 113B output can be transferred to be all-trans light microscopic 110 and 111 by solid or hollow photocon, shank 102 or head 103 that described photocon can be fixed on toothbrush go out, and make that toothbrush head 103 and shank 102 are separable; When the head 103 of toothbrush integrally combines with shank 102, photocon and

collector lens

113A and 113B, be all-trans light microscopic 110 and 111, the

lens

108 and 109 of light-emitting window constitute two complete photoconduction light paths respectively; Photoconduction can be two separated structures, also can be integrated single structure.

In conjunction with reference to figure 1 and Fig. 4 b, this contains the toothbrush 101 of radiating light source and the main distinction part of the embodiment shown in the earlier figures 2a is: draw from the shank 102 of toothbrush a hollow sting 124 is set, this support 124 is fixed on the shank 102 of hollow toothbrush, and stretches out shank 102 parts of toothbrush.This part of stretching out just in time is to insert in the head 103 of toothbrush when the shank 102 of the head 103 of toothbrush and toothbrush overlaps; Collector lens 113 and miter angle half-reflecting mirror 110 and completely reflecting mirror 111 are fixed in the hollow sting 124; And support 124 is provided with two light-emitting

windows

125 and 126. when toothbrush head and shank integrally combine, these two light-emitting

windows

125 and 126 correspond to two lens or

optical window

108 and 109 at light-emitting window place on the toothbrush head 103, light source 114 and support 124 corresponding linkings, the light that light source 114 sends is through the collector lens 113 of the porch of hollow sting 124, be sent on the miter angle half-reflecting mirror 110 that is positioned at hollow sting 124 other ends, process half-reflecting mirror 110 is spent 50% light turnover 90 from the light-emitting window 125 of support 124 on one side and is emitted, on one side 50% light is transferred to completely reflecting mirror 111 and 90 degree of transferring emit from the light-emitting window 126 of support 124, subsequently, the light correspondence emits from the light-emitting

window

106 and 107 on the toothbrush head 103.

In the present embodiment, the separable advantage of toothbrush head and shank is that toothbrush head is removable; When bristles was decreased the needs replacing always, the coupling unit in light source and the part guide structure can keep use, thereby reduces use cost greatly.In addition, make that employed parts and material reduce on the head of separable toothbrush, the head of this toothbrush is hollow fully, and the toothbrush that the user is changed is cheap first watch, and is connected convenient.

The separable embodiment of described toothbrush head and shank, can be generalized to the application of single source and a plurality of light sources. the embodiment such as above-mentioned optical element integrated morphology also may be used among the case study on implementation 4a, and completely reflecting mirror 111A and 111B are fixed on the similar support.

The described toothbrush that contains radiating light source of foregoing invention embodiment is applicable to clinical or the employed periodontitis PDT of daily health caring.The light that light source sent in the toothbrush is given to be coated with to be put in photosensitive bactericide on the tooth pathological tissues illumination that meets the energy density that photochemical reaction requires is provided, killing and wounding or to kill the bacterium that causes periodontitis effectively, and to other normal oral cavity tissue not damageds.

Simultaneously, in the toothbrush that contains radiating light source provided by the invention, light source is arranged on the toothbrush handle part hollow position, optocoupler is merged the light-emitting window that is transferred to toothbrush head by photoconduction; So can avoid human body to contact, and when changing toothbrush head, need not to reduce the cost of toothbrush thus greatly together with changing the higher element of this class cost of light source with the direct of luminescent material of light source.

Above-described only is preferred implementation of the present invention.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the principle of the invention, can also make some modification and improvement, these also should be considered as belonging to protection scope of the present invention.

Claims

1. a toothbrush (101) that contains radiating light source comprises interconnective hollow shank (102) and hollow head (103); It is characterized in that,

On the hollo head (103) of described toothbrush, at least one face (104) is arranged; Go up the hairbrush (105) that setting has certain-length described (104), and at least one light-emitting window that is not blocked by hairbrush (105) (106,107);

The optical couping device that be provided with power supply (119), the drive circuit (115) that is connected with power supply (119) in the hollow shank (102) of described toothbrush and the hollow head (103), is connected with drive circuit (115);

Described optical couping device comprises the light source (114) that directly is connected with drive circuit (115), the photoconduction that is connected with this light source (114), be connected with this photoconduction and lens combinations that be arranged on the light-emitting window place (108,109);

The light that described light source (114) is sent, the lens combinations (108,109) through described photoconduction and light-emitting window place transfer out from light-emitting window (106,107).

2. the toothbrush that contains radiating light source as claimed in claim 1 is characterized in that, being connected that described toothbrush head (103) and toothbrush handle part (102) are located is separable; The place of interconnecting of described toothbrush head (103) and toothbrush handle part (102) forms waterproof sealing.

3. the toothbrush that contains radiating light source as claimed in claim 1 is characterized in that, described light source (114) is positioned at the hollow shank of toothbrush (102).

4. the toothbrush that contains radiating light source as claimed in claim 3 is characterized in that, described light source (114) is single or multiple light emitting diodes, or single or multiple laser diode.

5. the toothbrush that contains radiating light source as claimed in claim 4 is characterized in that, that the optical wavelength that described light source (114) sends is in is infrared, visible light and ultraviolet region, and power is that 1 Bo is watt to 10 milliwatts.

6. the toothbrush that contains radiating light source as claimed in claim 5 is characterized in that, the optical wavelength that described light source (114) sends be 650 nanometers to 690 nanometers, power is that 1 milliwatt is to 10 milliwatts.

7. the toothbrush that contains radiating light source as claimed in claim 1 is characterized in that, described lens combinations (108,109) form waterproof sealing with light-emitting window (106,107) on the face (104) on the described toothbrush head (103) respectively.

8. the toothbrush that contains radiating light source as claimed in claim 7 is characterized in that, described to lay respectively at lens combinations (108,109) that light-emitting window (106,107) locates be that focus is positioned near the lens the bristle point plane.

9. the toothbrush that contains radiating light source as claimed in claim 7 is characterized in that, described to lay respectively at the lens combinations (108,109) that light-emitting window (106,107) locates be the plane window.

10. the toothbrush that contains radiating light source as claimed in claim 1 is characterized in that, described photoconduction is included in collector lens (113), photocon (123), semi reflective mirror (110) and the light microscopic that is all-trans (111) on the same optical axis; The minute surface of the described semi reflective mirror and the light microscopic that is all-trans respectively with described optical axis and the optical axis that is positioned at the lens (108,109) that light-emitting window (106,107) locates become miter angle; The described semi reflective mirror and the light microscopic that is all-trans will be divided equally and reflex to described light-emitting window place from the light of light source (114).

11. the toothbrush that contains radiating light source as claimed in claim 10 is characterized in that, described photocon (123) is solid construction or hollow-core construction, is column or taper.

12. the toothbrush that contains radiating light source as claimed in claim 11 is characterized in that, being connected that described toothbrush head (103) and toothbrush handle part (102) are located is separable; Described collector lens (113) is fixed on described toothbrush handle part (102) and locates; Described semi reflective mirror (110) and the light microscopic that is all-trans (111) are fixed on toothbrush head (103) and locate; Described photocon (123) is fixed on toothbrush head (103) or toothbrush handle part (101) is located; The place of interconnecting of described toothbrush head (103) and toothbrush handle part (102) forms waterproof sealing;

13. the toothbrush that contains radiating light source as claimed in claim 1 is characterized in that, described photoconduction constitute one or more groups collector lens on same optical axis (113A, 113B), photocon (112A, 112B) and the light microscopic that is all-trans (111A, 111B); The minute surface of the described light microscopic that is all-trans respectively with described optical axis and the optical axis that is positioned at the lens (108,109) that light-emitting window (106,107) locates become miter angle; Describedly be all-trans that light microscopic will (114A, light 114B) reflex to described light-emitting window place respectively from light source.

14. the toothbrush that contains radiating light source as claimed in claim 13 is characterized in that described photocon is solid construction or hollow-core construction, is column or taper.

15. the toothbrush that contains radiating light source as claimed in claim 14 is characterized in that, being connected that described toothbrush head (103) and toothbrush handle part (102) are located is separable; (113A 113B) is fixed on described toothbrush handle part (102) and locates described collector lens; (111A 111B) is fixed on toothbrush head (103) and locates the described light microscopic that is all-trans; (112A 112B) is fixed on toothbrush head (103) to described photocon or toothbrush handle part (101) is located; The place of interconnecting of described toothbrush head (103) and toothbrush handle part (102) forms waterproof sealing.

16. the toothbrush that contains radiating light source as claimed in claim 1 is characterized in that, described photoconduction comprise one or more groups collector lens (113A, 113B) and the optical communication means of forming by optical fiber; Described optical fiber two ends respectively with described collector lens (113A, 113B) and be positioned at the lens (108,109) that light-emitting window (106,107) locates and be coupled; Described optical fiber will (114A, light 114B) be transferred to light-emitting window (106,107) respectively and locate from light source.

17. the toothbrush that contains radiating light source as claimed in claim 1 is characterized in that, described photoconduction constitute one or more groups collector lens on same optical axis (113A, 113B) and the light microscopic that is all-trans (111A, 111B); The minute surface of the described light microscopic that is all-trans respectively with described optical axis and the optical axis that is positioned at the lens (108,109) that light-emitting window (106,107) locates become miter angle; The described light microscopic that is all-trans will and reflex to light-emitting window (106,107) through the light that free space is propagated from light source (114) and locate.

18. the toothbrush that contains radiating light source as claimed in claim 17 is characterized in that, being connected that described toothbrush head (103) and toothbrush handle part (102) are located is separable; (113A 113B) is fixed in the shank (102) of toothbrush described collector lens, and (111A 111B) is fixed in the head (103) of toothbrush the described light microscopic that is all-trans; The place of interconnecting of described toothbrush head (103) and toothbrush handle part (102) forms waterproof sealing.

19. the toothbrush that contains radiating light source as claimed in claim 17 is characterized in that, being connected that described toothbrush head (103) and toothbrush handle part (102) are located is separable; Described collector lens (113A, 113B), and completely reflecting mirror (111A 111B) is fixed on the hollow sting in the described toothbrush handle part (102); The place of interconnecting of described toothbrush head (103) and toothbrush handle part (102) forms waterproof sealing.

20. the toothbrush that contains radiating light source as claimed in claim 1 is characterized in that, described photoconduction constitute collector lens (113A) on same optical axis, semi reflective mirror (110) and the light microscopic that is all-trans (111); The minute surface of the described semi reflective mirror and the light microscopic that is all-trans respectively with described optical axis and the optical axis that is positioned at the lens (108,109) that light-emitting window (106,107) locates become miter angle; The described semi reflective mirror and the light microscopic that is all-trans will be divided equally and reflex to light-emitting window (106,107) respectively and locate from light source (114) and through the light that free space is propagated.

21. the toothbrush that contains radiating light source as claimed in claim 20 is characterized in that, being connected that described toothbrush head (103) and toothbrush handle part (102) are located is separable; Described collector lens (113) is fixed in the shank (102) of toothbrush, and described semi reflective mirror (110) and the light microscopic that is all-trans (111) are fixed in the head (103) of toothbrush; The place of interconnecting of described toothbrush head (103) and toothbrush handle part (102) forms waterproof sealing.

22. the toothbrush that contains radiating light source as claimed in claim 20 is characterized in that, being connected that described toothbrush head (103) and toothbrush handle part (102) are located is separable; Described collector lens (113), semi reflective mirror (110) and completely reflecting mirror (111) are fixed on the hollow sting in described toothbrush handle part (101) and the toothbrush handle part (124); The place of interconnecting of described toothbrush head (103) and toothbrush handle part (102) forms waterproof sealing.

23. the toothbrush that contains radiating light source as claimed in claim 1 is characterized in that, described power supply (119) is a disposable battery; Locate to be provided with the opening (120) that is used to change disposable battery in the bottom (121) of described toothbrush handle part (101) and form the bottom (122) of waterproof sealing with described opening (120).

24. the toothbrush that contains radiating light source as claimed in claim 1 is characterized in that, described power supply (119) is rechargeable battery and corresponding charging circuit; The charging circuit of described rechargeable battery is the separable induction charging device of non-contact electrode.

25. the toothbrush that contains radiating light source as claimed in claim 1, it is characterized in that, be provided with in the outside of described toothbrush handle part (101) and be used for starting the power switch button (118) that is connected with drive circuit (115) with cut off the electricity supply (119), this power switch button (118) is positioned at the inside that the waterproof sealing structure that contacts is not arranged with water; Hollow interior at described toothbrush handle part (101) is provided with timer (116) and the bell ringing device (117) that is connected with power supply (119), be used for sending the tinkle of bells after the predefined time of arrival; The predefined time of described timer is 2～3 minutes.