CN103027757B - Micro electric field stimulation healing device for minitype dental implant - Google Patents
Micro electric field stimulation healing device for minitype dental implant Download PDFInfo
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Abstract
The invention discloses a micro electric field stimulation healing device for a minitype dental implant. The device is provided with a lower surface fitted with the top surface of the dental implant, and a stretching contact part, wherein a metal retention bolt penetrates through a circular through hole formed in the healing device, and fastened in the dental implant; dental resin is filled above the retention bolt, so that the retention bolt is separated from an oral environment; the device further comprises a micro and constant voltage circuit module or a micro and constant current circuit module; a negative electrode is arranged on the lower surface of the healing device, contacted with the dental implant, and on the external surface of a threaded rod of the retention bolt above the lower surface of the healing device; a positive electrode is arranged on the stretching contact part; and the negative electrode and the positive electrode are connected with an insulation protection layer. The healing device is small in size, can be mounted on the dental implant conveniently, is good in fixity, can be used for a long time, and can significantly shorten a healing period of the dental implant.
Description
Technical field
The present invention relates to dentistry implant device for healing, particularly micro-type dental implantation body electric microfield stimulates device for healing.
Background technology
The sixties in 20th century, Sweden scholar professor Brannemark finds, formation " Integrated implant " of combining closely between Titanium and the surface microstructure of osseous tissue.Integrated implant interface theory has established the basis of modern oral implantology.Integrated implant interface is the basis of guaranteeing bone regeneration around implant osseous tissue energy stable for extended periods of time and bearing functional burdening.
Between mucosa and implantation body interface successful healing and to keep stable be also the successful key factor of plantation.Tooth implant penetrates mucous membrane tissue and is exposed to oral cavity, needs to set up a good connective tissue and closes, for implantation body provides one barrier preventing oral cavity bacterium and toxin thereof from entering environment.The mucous membrane tissue of bone regeneration around implant is similar to the periodontal gum tissue of nature, but compared with natural teeth gingiva, the relatively avascular soft tissue defense mechanism of this layer is more weak.
Plantation reparation is the focus of current clinical oral and stomatology research, and the healing level improving gingiva tissue and osseous tissue is faced task.Mesenchymal stem cells MSCs migrates to Implant-bone interface and deposits sclerotin, epidermis and periodontal tissue's stem cell migration to implantation body-gingiva boundary and the combination formed between implantation body and gingival epithelium is the key that implantation body succeeds.
The method of galvanic stimulation is promoting to be widely used in the healing of fracture, the treatment of wound, neural growth.
Record in existing patent related bone healing therapeutic equipments, disclosed in Chinese patent application CN201120200642.8, CN90100934.2, CN200610061732.7 therapeutic equipments apply galvanic stimulation method promote union of fracture.But these instruments are all promote its wound healing by galvanism bone, have not yet to see the instrument that the method adopting electric current, voltage to stimulate promotes dentistry implant healing, and these instruments or the host computer with heaviness, with capacitor plate, carry inconvenience, there is limitation.
So far, the report promoting dentistry implant healing small in oral cavity about electrical stimulation is not yet had.
Summary of the invention
In order to solve the problem, present inventor has performed and study with keen determination, found that: by constant micro-electric current or micro voltage, electricity irritation is carried out to dentistry implant, effectively can promote the healing of implantation body, shorten healing time, specifically, to adopt and dentistry implant upper surface coincide the negative electrode contacted, with the metal maintenance bolt of cathode contacts, negative electrode is fixed on dentistry implant simultaneously, the part of stretching out arranges the anode contacted as soft tissue etc. with other positions in oral cavity, electricity irritation is provided respectively to other positions in dentistry implant and oral cavity by negative electrode and anode, maintenance bolt is sealed by dental resin, and insulated by insulating protective layer and other positions, oral cavity, gained device not only can realize the quickly-healing of dentistry implant, and this device volume is small, dentistry implant is installed, convenient disassembly, easy to use, easily clean, thus complete the present invention.
The object of the present invention is to provide following aspect:
(1) a kind of micro-type dental implantation body electric microfield stimulates device for healing, it is characterized in that, this device has the lower surface matched with dentistry implant end face, and stretch out contact site (2), metal maintenance bolt (1), through the manhole that this device for healing is offered (1a), is anchored in dentistry implant, clogs dental resin (7) on maintenance bolt, maintenance bolt and oral environment are isolated, and integral with this device for healing remainder; Insulating protective layer is arranged at the outer surface of this device for healing, and electronic component and oral environment are isolated;
This device for healing comprises:
Power supply,
Micro voltage constant voltage circuit module, for providing constant voltage for electrode,
Micro-electric current constant-current circuit module, for providing constant electric current for electrode,
Electrode, comprises negative electrode (6) and anelectrode (5), derives for the curtage micro-electric current constant-current circuit or micro voltage constant voltage circuit exported and is supplied to other positions in dentistry implant and human oral cavity respectively,
Wherein, micro voltage constant voltage circuit module and micro-both electric current constant-current circuit modules not and deposit, do not select an existence, and in other words, micro-type dental implantation body electric microfield stimulates device for healing or comprises micro voltage constant voltage circuit module or comprise micro-electric current constant-current circuit module;
Negative electrode (6) is arranged on the lower surface of this device for healing and dentistry implant joint; and the screw rod outer surface of maintenance bolt (1) above device for healing lower surface; anelectrode (5) is arranged at and stretches out on contact site, and negative electrode (6) is connected with insulating protective layer (3) respectively with anelectrode (5).
(2) the micro-type dental implantation body electric microfield according to above-mentioned aspect stimulates device for healing, it is characterized in that,
Described micro voltage constant voltage circuit module comprises supply module and Isobarically Control module, and supply module provides stable power supply for micro voltage constant voltage circuit module, and the Power convert that Isobarically Control module is used for supply module to provide becomes constant voltage to output to electrode.
(3) the micro-type dental implantation body electric microfield according to above-mentioned aspect stimulates device for healing, it is characterized in that,
Described micro-electric current constant-current circuit module comprises supply module and constant-current control module, and supply module provides stable power supply for micro-electric current constant-current circuit module, and the Power convert that constant-current control module is used for supply module to provide becomes constant current output to electrode.
(4) the micro-type dental implantation body electric microfield according to above-mentioned aspect stimulates device for healing, it is characterized in that,
Dental resin (7) upper surface is identical with the upper level of device for healing remainder.
(5) the micro-type dental implantation body electric microfield according to above-mentioned aspect stimulates device for healing, it is characterized in that,
Insulating protective layer is made up of porcelain, resin, plastics or other insulating polymeric materials.
(6) the micro-type dental implantation body electric microfield according to above-mentioned aspect stimulates device for healing, it is characterized in that,
Stretch out contact site have cross out part and longitudinal contact portion, surface-coated insulating protective layer, inside is power supply, micro voltage constant voltage circuit module or micro-electric current constant-current circuit module,
Cross out part and keep certain interval with gingiva, be convenient to local sanitation and hygiene.
(7) the micro-type dental implantation body electric microfield stated according to above-mentioned aspect stimulates device for healing, it is characterized in that,
Anelectrode (5) is arranged at the bottom of contact site.
(8) stimulate device for healing according to the micro-type dental implantation body electric microfield of above-mentioned aspect, it is characterized in that,
Anelectrode contacts with other soft tissues in gingiva or oral cavity.
(9) stimulate device for healing according to the micro-type dental implantation body electric microfield of above-mentioned aspect, it is characterized in that,
Negative electrode abuts with the screw rod of maintenance bolt and dentistry implant respectively.
(10) stimulate device for healing according to the micro-type dental implantation body electric microfield of above-mentioned aspect, it is characterized in that,
Micro voltage constant voltage circuit module provides below 5V voltage;
Micro-electric current constant-current circuit module provides the 10-200 μ electric current of A.
Stimulate device for healing volume very small according to micro-type dental implantation body provided by the invention electric microfield, can be installed on dentistry implant easily, and patient's oral environment is not brought inconvenience, do not affect patient's orthobiosis, can for a long time for dentistry implant provides electricity irritation, make dentistry implant quickly-healing, and easily clean, be suitable for life-time service.After the dentistry implant healing of patient, remove the dental resin of sealing, taking off maintenance bolt can remove whole device for healing, and it is very convenient to dismantle.
Accompanying drawing explanation
Fig. 1 illustrates that micro-type dental implantation body electric microfield stimulates the schematic top plan view of device for healing according to the preferred embodiment of the present invention;
Fig. 2 illustrates that micro-type dental implantation body electric microfield stimulates the cross-sectional view of device for healing according to the preferred embodiment of the present invention;
Fig. 3 illustrates that micro-type dental implantation body electric microfield stimulates the cross-sectional view of device for healing according to the preferred embodiment of the present invention;
Fig. 4 illustrates that micro-type dental implantation body electric microfield stimulates the mounting structure schematic diagram of device for healing according to the preferred embodiment of the present invention;
Fig. 5 illustrates that micro-type dental implantation body electric microfield stimulates the structural representation of the supply module of device for healing according to the preferred embodiment of the present invention;
Fig. 6 illustrates that micro-type dental implantation body electric microfield stimulates the structural representation of the Isobarically Control module of device for healing according to the preferred embodiment of the present invention;
Fig. 7 illustrates that micro-type dental implantation body electric microfield stimulates the circuit theory diagrams of micro-electric current Isobarically Control module of device for healing according to the preferred embodiment of the present invention.
Drawing reference numeral illustrates:
1-maintenance bolt
1a-through hole
2-stretches out contact site
3-insulating protective layer
4-minicell
5-anelectrode
6-negative electrode
7-dental resin
8-dentistry implant
21-unidirectional current transducer
22-unidirectional current transducer
23-controller
23a-A-D converter
23b-digital analog converter
24-operational amplifier group
24a-operational amplifier
24b-operational amplifier
24c-resistance
Detailed description of the invention
Below by the present invention is described in detail, the features and advantages of the invention will illustrate along with these and become more clear, clear and definite.
Word " exemplary " special here means " as example, embodiment or illustrative ".Here need not be interpreted as being better than or being better than other embodiment as any embodiment illustrated by " exemplary ".Although the various aspects of embodiment shown in the drawings, unless otherwise indicated, accompanying drawing need not be drawn in proportion.
The present inventor finds through research, namely tissue damaged forms a stable Endogenous Electrical Fields (about 100-200mv) between damaged tissue and non-damaged tissue after hindering, this electric field duration longer (a few days is to several weeks), be distributed in the spatial dimension of around damaged tissue several millimeters, distance damaged tissue is nearer, and electric field is more obvious; The new bone apposition of generation that always can be constant at nagative potential place, and positive potential place often produces bone resorption, this discloses the significance of displaceable electric charge to osteogenesis process.In addition, the research about skin progenitor cell also shows, under the effect of electric microfield, epidermal stem cells is to the movable cathode of electric field.Therefore, the present inventor thinks: apply to tooth implant the migration that extraneous electric fields effectively can improve stem cell, promote the healing of Peri-implant tissues and be combined with implantation body, improving the healing of implantation body, improve success rate.
Disclosed by the invention is that a kind of micro-type dental implantation body electric microfield that dentistry implant can be promoted to heal stimulates device for healing, uses this device to be beneficial to the healing of tooth implant, improves the success rate that clinical plantation is repaired.
According in a preferred embodiment of the present invention, as shown in figs. 1-4, a kind of micro-type dental implantation body electric microfield is provided to stimulate device for healing, this device has the lower surface matched with dentistry implant end face, and stretching out contact site 2, metal maintenance bolt 1, through the manhole 1a that this device for healing is offered, is anchored in dentistry implant, on maintenance bolt, clog dental resin 7, make dental resin 7 and this device for healing remainder integral;
This device for healing comprises:
Power supply,
Micro voltage constant voltage circuit module, for providing constant voltage for electrode,
Micro-electric current constant-current circuit module, for providing constant electric current for electrode,
Electrode, comprises negative electrode 6 and anelectrode 5, derives for the curtage micro-electric current constant-current circuit or micro voltage constant voltage circuit exported and is supplied to other positions in dentistry implant and human oral cavity respectively,
Insulating protective layer 3, is arranged at the outer surface of this device for healing, and electronic component and oral environment are isolated;
Wherein, micro voltage constant voltage circuit module and micro-both electric current constant-current circuit modules not and deposit, do not select an existence, and in other words, micro-type dental implantation body electric microfield stimulates device for healing or comprises micro voltage constant voltage circuit module or comprise micro-electric current constant-current circuit module;
Negative electrode 6 is arranged on the lower surface of this device for healing and dentistry implant joint; and the screw rod outer surface of maintenance bolt 1 above device for healing lower surface; anelectrode 5 is arranged at and stretches out on contact site, and negative electrode 6 is connected with insulating protective layer 3 respectively with anelectrode 5.
Wherein, fixing in order to install with dentistry implant easily, match according to micro-type dental implantation body lower surface provided by the invention and dentistry implant upper surface, seamless between the two after such installation, can prevent foreign body from invading therebetween and causing between dentistry implant and surrounding tissue, being difficult to healing.
In a preferred embodiment in accordance with the present invention, micro-type dental implantation body electric microfield stimulates device for healing comprise barrel-shaped main part and stretch out contact site 2, as shown in Figure 1,2 and 3.Wherein, main part is used for carrying out with dentistry implant installing, fixing, and holds circuit module as micro voltage constant voltage circuit module or micro-electric current constant-current circuit module; Stretch out contact site for contacting with other positions such as soft tissue in oral cavity.
Stimulate in device for healing at electric microfield according to the present invention, by maintenance bolt 1, this device for healing is fixed to dentistry implant upper surface, make this device for healing can stably be fastened on dentistry implant surface in healing dentistry implant agglutination, avoid device for healing displacement over the course for the treatment of.
Use metal maintenance bolt as maintenance bolt, metal is not particularly limited, but preferably use titanium or titanium alloys maintenance bolt, to improve biocompatibility.
Maintenance bolt is except playing the effect of fixing device for healing, also play the effect of conduction, because maintenance bolt all contacts with negative electrode (negative electrode) with dentistry implant, can further the signal of telecommunication that negative electrode exports be imported in dentistry implant, particularly when negative electrode and dentistry implant loose contact, as shown in Figure 4.
In the present invention, dental resin prevents the matter corrodes maintenance bolt such as saliva in oral cavity.
In a preferred embodiment in accordance with the present invention, dental resin 7 upper surface is identical with the upper level of device for healing remainder, thus prevents from causing damage to patient oral cavity.
Stimulate in device for healing at electric microfield of the present invention; insulating protective layer 3 can be made by porcelain, resin, plastics or other insulating polymeric materials; be arranged at device for healing surface, protection and isolated circuit module avoid the interference of saliva, soft tissue etc. in oral cavity.
Stimulate at electric microfield according to the present invention in the preferred implementation of device for healing, stretch out contact site and have and cross out part and longitudinal contact portion, as shown in Figure 2,3 and 4.Wherein, cross out part and micro-type dental implantation body electric microfield stimulated between the anode of device for healing and implantation body retain certain gap, this gap can so that clean time to be scrubbed by gap or be convenient to implantation body and clean line and pass through, so that cleaning.
Especially, anelectrode 5 is arranged at the bottom of contact site, and anelectrode 5 is easily contacted with intraoral soft tissue etc.
In the present invention, as power supply, use minicell, as button cell etc.Minicell volume is little, saves space, easy to use.Minicell can be miniature galvanic cell also can be micro battery, and miniature galvanic cell can be changed before each treatment, and micro battery can charge after each application, preferred miniature galvanic cell, single use, is conducive to health.
Battery variety is not particularly limited, common power supply can be used, as smee cell, lithium battery etc.
Stimulate at electric microfield according to the present invention in the preferred implementation of device for healing, micro voltage constant voltage circuit module provides below 5V voltage; Micro-electric current constant-current circuit module provides the following electric current of 500 μ A.Further preferably, micro voltage constant voltage circuit module provides 1-3V voltage; Micro-electric current constant-current circuit module provides 10-200 μ A electric current.
Stimulate in device for healing at electric microfield according to the present invention, particular/special requirement is not had for micro voltage constant voltage circuit module and micro-electric current constant-current circuit module, common constant voltage circuit module and constant-current circuit module can be used.
In one embodiment, described micro voltage constant voltage circuit module comprises supply module and Isobarically Control module, supply module provides stable power supply for micro voltage constant voltage circuit module, and the Power convert that Isobarically Control module is used for supply module to provide becomes constant voltage to output to electrode.
In one embodiment, described micro-electric current constant-current circuit module comprises supply module and constant-current control module, supply module provides stable power supply for micro-electric current constant-current circuit module, and the Power convert that constant-current control module is used for supply module to provide becomes constant current output to electrode.
Below only Isobarically Control module is described further.
As shown in Fig. 5,6 and 7, in one embodiment, Isobarically Control module comprises:
Controller, by accepting signal that operational amplifier group exports and to the mode control algorithm amplifier group of operational amplifier group input signal, making operational amplifier group to export constant voltage circuit,
Operational amplifier group, is input to electrode for generation of constant voltage circuit by constant voltage.
Wherein, the voltage transitions of minicell 4 becomes fixed voltage to be input to operational amplifier group by unidirectional current transducer 21,
Unidirectional current transducer 22, becomes fixed voltage to be input to controller the voltage transitions of minicell 4.
Wherein, the annexation of supply module is as Fig. 5, and minicell 4 is connected with unidirectional current transducer 22 with unidirectional current transducer 21 respectively, and the outfan of unidirectional current transducer 21 and unidirectional current transducer 22 is the outfan of supply module.
Wherein, the annexation of supply module and Isobarically Control module is as Fig. 5, and unidirectional current transducer 21 is connected with operational amplifier group 24, and unidirectional current transducer 22 is connected with controller 23.
Wherein, operational amplifier group comprises:
Operational amplifier 24a, by controller input signal (Vin) become equal proportion voltage signal and by voltage signal input resistance 24c and operational amplifier 24b,
Operational amplifier 24b, receives the signal of self-resistance and operational amplifier 24a, and output signal sends into operational amplifier 24a and controller, realizes constant current output by closed loop feedback,
Wherein, operational amplifier 24a and operational amplifier 24b all receives the voltage from unidirectional current transducer 21.
In Isobarically Control module, controller passes through to operational amplifier group input signal and accepts the mode control algorithm amplifier group of operational amplifier group signal, makes operational amplifier group can export the constant voltage signal of telecommunication.
Wherein, controller comprises:
Digital analog converter 23b, for exporting and setting constant voltage and be worth proportional control voltage and send into operational amplifier 24a as input signal (Vin),
Analog-digital converter 23a, for receiving the signal of operational amplifier 24b.
Wherein, as shown in Figure 6, digital analog converter 23b is to operational amplifier 24a input signal, and operational amplifier 24b is to analog-digital converter 23a input signal for the annexation of controller and operational amplifier group.
clinical trial
For accept dentistry implant 10 routine clinical patients, install and stimulate device for healing according to micro-type dental implantation body provided by the invention electric microfield, observe dentistry implant healing cycle and be 1-2 month, and the patient that micro-type dental implantation body electric microfield stimulates device for healing is not installed, clinical observation healing cycle is 3-4 month.
Show thus, stimulate device for healing can effectively promote dentistry implant quickly-healing according to micro-type dental implantation body provided by the invention electric microfield, shorten healing cycle.
More than in conjunction with detailed description of the invention and exemplary example to invention has been detailed description, but these explanations can not be interpreted as limitation of the present invention.It will be appreciated by those skilled in the art that when not departing from spirit and scope of the invention, can carry out multiple equivalencing, modification or improvement to technical solution of the present invention and embodiment thereof, these all fall within the scope of the present invention.Protection scope of the present invention is as the criterion with claims.
Claims (8)
1. micro-type dental implantation body electric microfield stimulates device for healing, it is characterized in that, this device has the lower surface matched with dentistry implant (8) end face, and stretch out contact site (2), metal maintenance bolt (1) is through the manhole that this device for healing is offered (1a), be anchored in dentistry implant, dental resin (7) is clogged on maintenance bolt, maintenance bolt and oral environment are isolated, and integral with this device for healing remainder; Insulating protective layer is arranged at the outer surface of this device for healing, and electronic component and oral environment are isolated;
This device for healing comprises:
Power supply,
Micro voltage constant voltage circuit module, for providing constant voltage for electrode,
Micro-electric current constant-current circuit module, for providing constant electric current for electrode,
Electrode, comprises negative electrode (6) and anelectrode (5), derives for the curtage micro-electric current constant-current circuit or micro voltage constant voltage circuit exported and is supplied to other positions in dentistry implant and human oral cavity respectively,
Wherein, micro voltage constant voltage circuit module and micro-both electric current constant-current circuit modules not and deposit, do not select an existence, and in other words, micro-type dental implantation body electric microfield stimulates device for healing or comprises micro voltage constant voltage circuit module or comprise micro-electric current constant-current circuit module;
Negative electrode (6) is arranged on the lower surface of this device for healing and dentistry implant joint; and the screw rod outer surface of maintenance bolt (1) above device for healing lower surface; anelectrode (5) is arranged at and stretches out on contact site, and negative electrode (6) is connected with insulating protective layer (3) respectively with anelectrode (5).
2. micro-type dental implantation body according to claim 1 electric microfield stimulates device for healing, it is characterized in that,
Described micro voltage constant voltage circuit module comprises supply module and Isobarically Control module, and supply module provides stable power supply for micro voltage constant voltage circuit module, and the Power convert that Isobarically Control module is used for supply module to provide becomes constant voltage to output to electrode.
3. micro-type dental implantation body according to claim 1 electric microfield stimulates device for healing, it is characterized in that,
Described micro-electric current constant-current circuit module comprises supply module and constant-current control module, and supply module provides stable power supply for micro-electric current constant-current circuit module, and the Power convert that constant-current control module is used for supply module to provide becomes constant current output to electrode.
4. micro-type dental implantation body according to claim 1 electric microfield stimulates device for healing, it is characterized in that,
Dental resin (7) upper surface is identical with the upper level of device for healing remainder.
5. micro-type dental implantation body according to claim 1 electric microfield stimulates device for healing, it is characterized in that,
Insulating protective layer is made up of porcelain, resin, plastics or other insulating polymeric materials.
6. micro-type dental implantation body according to claim 1 electric microfield stimulates device for healing, it is characterized in that,
Anelectrode contacts with other soft tissues in gingiva or oral cavity.
7. micro-type dental implantation body according to claim 1 electric microfield stimulates device for healing, it is characterized in that,
Negative electrode abuts with the screw rod of maintenance bolt and dentistry implant respectively.
8. micro-type dental implantation body according to claim 1 electric microfield stimulates device for healing, it is characterized in that,
Micro voltage constant voltage circuit module provides below 5V voltage;
Micro-electric current constant-current circuit module provides 10-200 μ A electric current.
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| DE102013201884A1 (en) | 2013-02-05 | 2014-08-07 | Urs Brodbeck | Treatment system for cleaning a biofilm-contaminated component, in particular an implant part |
| DE102014216294A1 (en) * | 2014-08-15 | 2016-02-18 | Urs Brodbeck | Cleaning system for a dental implant part inserted into the jawbone of a patient |
| CN111372534B (en) * | 2017-10-26 | 2022-06-21 | 米尼翁大学 | Dental implant with electrical stimulation system and method for producing the same |
| CN113412096B (en) * | 2019-02-05 | 2023-10-13 | 拉斐尔·瑟吉斯 | Novel systems and methods for accelerating dental implant healing |
| CN110037814A (en) * | 2019-04-29 | 2019-07-23 | 广州市伟迈医疗设备有限公司 | A kind of electromagnetic type cover screw fixture cover and method |
| CN110680527B (en) * | 2019-09-24 | 2020-11-06 | 西安交通大学 | Implant system and microelectrode module |
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