CN202637148U - Medicament-carrying plasma needle device - Google Patents
Medicament-carrying plasma needle device Download PDFInfo
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- CN202637148U CN202637148U CN 201220257611 CN201220257611U CN202637148U CN 202637148 U CN202637148 U CN 202637148U CN 201220257611 CN201220257611 CN 201220257611 CN 201220257611 U CN201220257611 U CN 201220257611U CN 202637148 U CN202637148 U CN 202637148U
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Abstract
The utility model discloses a medicament-carrying plasma needle device, which belongs to a medical appliance and is used for solving the problem of poor clearing and disinfecting effects existing in the conventional pulp canal clearing irrigating needle and improving the pulp canal clearing and disinfecting effects. The medicament-carrying plasma needle device comprises a needle head, a needle cap, an air source, a medicament bottle and a plasma jet source, wherein the needle head consists of an insulating shell, an insulating pad and a metal needle; a metal sheet is embedded into the bottom of a needle cap groove; the bottom of the groove and the metal sheet are provided with coaxial air holes; the insulating shell of the needle head is inserted into the needle cap groove; the tail end of the metal needle is contacted with the metal sheet; the metal sheet is connected with the output end of the plasma jet source through a lead; the air hole on the metal sheet is communicated with the medicament bottle through an air outlet tube; the medicament bottle is connected with the air source through an air inlet tube; and the plasma jet source comprises a resistor, a capacitor and a high-pressure pulse power supply. The medicament-carrying plasma needle device is simple in structure, is convenient to manufacture, maintain and replace, and is safe and convenient to operate; and the plasma flow speed and treatment time can be adjusted according to the disease severity and the tolerance of a patient, and individual treatment is realized.
Description
Technical field
This utility model belongs to medical apparatus and instruments, is specifically related to a kind of medicine carrying plasma needle device, is used for the tooth root canal.
Background technology
Dental pulp disease and periapical disease are human commonly encountered diseases, frequently-occurring diseases, the prefered method for the treatment of these two kinds of diseases is root canal therapies, it refers to thoroughly clear up the interior inflamed human dental pulp of root pipe and downright bad material, expansion form the root pipe, and to the root pipe suitably sterilize, last close packing root pipe, infectious content prevents the generation of periapical or the healing of promotion periapical to the pessimal stimulation of periapical tissue in the root pipe to remove.Whether root canal effect and the cleaning of root pipe and root canal disinfection are improved closely related.
The existing flushing needle majority that is used for the cleaning of root pipe is the straight line hollow-core construction, and needle tip opening or sidewall opening link to each other with syringe, are used for root canal irrigation, administration and filling.This flushing needle only has single mechanical flushing action, does not have obvious bactericidal action; Syringe needle must be placed in the root pipe loosely during flushing.If flushing needle inserts root Guan Taishen, it is too tight that syringe needle can block, and easily flushing liquor and root pipe polluter extruded apical foramen of tooth; But the flushing needle position is too shallow, may cause 1/3 section flushing of tip of a root imperfection; Flushing liquor can not effectively enter narrow and small, crooked lateral branch, dentinal tubule deep, causes cleaning not thorough.Equally, aspect root canal disinfection, the medical worker adopts the drug disinfection method mostly at present.What medicinal application was maximum is the calcium hydroxide preparation, but the calcium hydroxide preparation can not effectively enter narrow and small, crooked lateral branch, dentinal tubule's deep kill bacteria; The chemical disinfection effect is arranged, but do not have root pipe cleaning effect.
And in recent years, it is found that low temperature plasma can sterilization, and kill cancerous cell, promote blood clotting, thereby be subject to people at medical domain and greatly pay close attention to.Plasma is material the 4th attitude after solid-state, liquid, gaseous state.When applied voltage reaches the breakdown voltage of gas, gas molecule is breakdown, generation is rich in the atom of a large amount of active particles such as ion, electronics, excited state and molecule and free radical etc. at interior mixture, these active particles can be efficiently and microbial interaction, the purpose that just can reach inactivating pathogens and remove pollutant at short notice.To have a sterilization safety quick and for gas form can enter the gap of narrow and small bending, not be subjected to after the restriction, outage of discharging gap in several milliseconds of the active particles these outstanding advantages such as the disappearance unharmful substance is residual because of low temperature plasma, and lower temperature plasma technology has demonstrated good effect in the research of the aspects such as the cleaning of stomatology field such as dental instruments and sterilization, dental caries therapeutic, tooth root canal, application.Be called " production method of the low temperature plasma that a kind of human body can directly touch " patent of invention numbers 201010252421.5, utility model patent numbers 200920268597.2 is called " plasma needle device " and document Xinpei Lu, et al. " A single electrode room-temperature plasma jet device for biomedical applications " (" the single electrode room-temperature plasma mjector that is used for biologic medical ") APPL.Phys.Lett.92,081502,2008 grade has the content report of introducing low temperature plasma generator and treatment oral disease.Recently, come the relevant report of dental treatments root pipe to deliver relevant for utilizing low temperature plasma to load medicine again, such as document Xincai Zhou, etal. " The Antimicrobial Activity of an Atmospheric-Pressure Room-Temperature Plasma in a Simulated Root-Canal Model Infected With Enterococcus Faecalis " (" the room temperature atmospheric plasma is to the antibacterial activity of enterococcus faecalis infectious root canal model "), Plasma Science, IEEE Transactions on, 2010,12 (38): these researchs of 3370-3374. are found, when low temperature plasma loaded upper medicine, the two-way interaction can produce good collaborative sterilization efficacy.
Summary of the invention
This utility model provides a kind of medicine carrying plasma needle device, utilizes the medicine carrying low temperature plasma, solves the problem of existing root pipe cleaning flushing needle cleaning and Disinfection Effect deficiency, to improve the effect of the cleaning of root pipe and root canal disinfection.
A kind of medicine carrying plasma needle device provided by the utility model comprises syringe needle, pin medicated cap, source of the gas, medicine bottle, plasma jet source, it is characterized in that:
Described syringe needle is comprised of insulation crust, felt pad and metal needle, and insulation crust is the cylinder with axially extending bore, and described metal needle inserts the insulation crust axially extending bore, and insulation crust is exposed at metal needle head and the tail two ends, and the metal needle head end is installed with felt pad;
Described pin medicated cap is the reeded cylinder of surperficial tool, hole shape and described syringe needle insulation crust form fit in the described groove, and described recess sidewall insulation, bottom portion of groove is embedded with sheet metal, and bottom portion of groove and sheet metal have coaxial pore;
Described syringe needle insulation crust inserts described pin medicated cap groove, and the metal needle tail end contacts with described sheet metal;
Described pin medicated cap bottom portion of groove sheet metal connects the plasma jet source output terminal by wire; Pore on the sheet metal is communicated with medicine bottle by escape pipe, and medicine bottle connects source of the gas by air inlet pipe;
Described plasma jet source is made of resistance, electric capacity and the high-voltage pulse power source of successively series connection, the outer junction point ground connection of high-voltage pulse power source, and the outer junction point of resistance is the plasma jet source output terminal.
Described medicine carrying plasma needle device is characterized in that:
Described pin medicated cap is installed in the hand-held mechanism, hand-held mechanism is connected as a single entity by head and fuselage and consists of, head is the opening tubular, fuselage is hollow pipe, head axis and fuselage axis extended line consist of 135 °～180 ° angles, described pin medicated cap is fixed in the head, and described wire and escape pipe slave are worn.
Described medicine carrying plasma needle device is characterized in that:
In the described plasma jet source, the resistance of described resistance is 40 kilo-ohms～100 kilo-ohms, and the capacitance of described electric capacity is 10 pico farads～100 pico farads, and the voltage of described high-voltage pulse power source is 4 kilovolts～10 kilovolts, and frequency is 50 hertz～10 KHz;
Described source of the gas, medicine bottle and plasma jet source all are placed in the casing.
Described medicine carrying plasma needle device is characterized in that:
The metal needle of described syringe needle is hollow tubular, and its head end sealing, head end sidewall have aperture.
Described medicine carrying plasma needle device is characterized in that:
The metal needle of described syringe needle is positioned at the part of insulation crust and metal needle head end and exposes insulation crust and partly form knuckle.
In this utility model, metal needle can adopt the memory materials such as common stainless steel or Nitinol, and pliability and torsion fracture resistant are better during for the memory material; Metal needle can be solid type or hollow type, and during for hollow tubular, working gas also can outwards spray the plasma jet that forms to all directions diffusion by the sidewall aperture; The source of the gas working gas can adopt elementary gas or its mists such as helium, oxygen, argon, nitrogen, also can be air, gaseous compound or gaseous organic substance; Containing the work medicine that carries in the medicine bottle can be hibitane liquid, hydrogen peroxide liquid, western pyrrole chloramines liquid etc.When the on-load voltage of metal needle is higher than the breakdown voltage of working gas, can produce around the syringe needle and contain the multiple high activity particle low-temperature plasma jet of (comprising electronics, various ion, atom, free radical and active constituents of medicine), then according to the tooth root canal working length of measuring, limit metal needle syringe needle insertion depth with rubber blanket, to avoid metal needle to exceed apical foramen of tooth, again metal needle is inserted the root pipe and can clear up and sterilize the root pipe.
This utility model is simple in structure, be convenient to make, maintenance and change easy-to-operate; Tiny metal needle is convenient to insert the tooth root pipe, and the plasma that contains multiple high activity particle of the gas form of generation can go deep into complicated root canal system and comprise narrow and small, crooked lateral branch, dentinal tubule deep; Can a pin multiplex, not only can be used to auxiliary cleaning root pipe but also can carry out disinfection to the root pipe; The plasma temperature of discharge generation is near room temperature, and with the human body touch-safe, various active particles disappear in several milliseconds after outage, and unharmful substance is residual; Can regulate plasma flow velocity and processing time according to disease severity and patient's tolerance degree, realize personalized treatment.
Description of drawings
Fig. 1 is first example structure sketch map of the present utility model;
Fig. 2 is and syringe needle sketch map of the present utility model;
Fig. 3 is second example structure sketch map of the present utility model;
Fig. 4 (a) is solid metal aciculiform shape sketch map;
Fig. 4 (b) is hollow metal aciculiform shape sketch map;
Fig. 5 (a) produces the plasma jet sketch map for the solid metal needle-discharging;
Fig. 5 (b) produces the plasma jet sketch map for the hollow metal needle-discharging.
Labelling among the figure: insulation crust 1, felt pad 2, metal needle 3, pin medicated cap 4, sheet metal 5, wire 6, escape pipe 7, casing 8, air inlet pipe 9, source of the gas 10, medicine bottle 11, resistance 12, electric capacity 13, high-voltage pulse power source 14, head 15, fuselage 16.
The specific embodiment
Below in conjunction with drawings and Examples this utility model is further specified.
As shown in Figure 1, first embodiment of the present utility model comprises syringe needle, pin medicated cap 4, source of the gas 10, medicine bottle 11, plasma jet source;
As shown in Figure 2, described syringe needle is comprised of insulation crust 1, felt pad 2 and metal needle 3, and insulation crust 1 is for having the cylinder of axially extending bore, and described metal needle 3 inserts insulation crust 1 axially extending bore, insulation crust is exposed at metal needle 3 head and the tail two ends, and metal needle 3 head ends are installed with felt pad 2;
Described pin medicated cap 4 is the reeded cylinder of surperficial tool, hole shape and described syringe needle insulation crust 1 form fit in the described groove, and described recess sidewall insulation, bottom portion of groove is embedded with sheet metal 5, and bottom portion of groove and sheet metal 5 have coaxial pore;
Described syringe needle insulation crust inserts described pin medicated cap groove, and metal needle 3 tail ends contact with described sheet metal 5; Metal needle 3 can be from insulation crust 1 dismounting, transposing, according to concrete tooth root canal morphology needs, the metal needle 3 of interchangeable different length, diameter, angle of bend;
Described pin medicated cap bottom portion of groove sheet metal 5 connects the plasma jet source output terminal by wire 6; Pore on the sheet metal 5 is communicated with medicine bottle 11 by escape pipe 7, and medicine bottle 11 connects source of the gas 10 by air inlet pipe 9;
Described plasma jet source is made of resistance 12, electric capacity 13 and the high-voltage pulse power source 14 of successively series connection, the outer junction point ground connection of high-voltage pulse power source 14, and the outer junction point of resistance 12 is the plasma jet source output terminal;
In the present embodiment, the resistance of described resistance 12 is 80 kilo-ohms, and the capacitance of described electric capacity 13 is 36 pico farads, and the voltage of described high-voltage pulse power source 14 is 6 kilovolts, and frequency is 4 KHz;
Described source of the gas 10, medicine bottle 11 and plasma jet source all are placed in the casing 8.
During work, metal needle 3 insertions are needed dental treatments root pipe, limit insertion depths to avoid metal needle to exceed apical foramen of tooth with felt pad 2.Metal needle 3 forms discharging gap with root canal wall, and the working gas generation corona discharge at this discharging gap can produce low-temperature plasma jet, and when not opening source of the gas 10,3 of metal needles make the surrounding air discharge, form the aciculiform plasma jet; Open source of the gas 10, metal needle 3 can make the working gas discharge generation plasma jet that passes through.
As shown in Figure 3, second embodiment of the present utility model, basic identical with first example structure, distinctive points only is:
Described pin medicated cap 4 is installed in the hand-held mechanism, hand-held mechanism is connected as a single entity by head 15 and fuselage 16 and consists of, head 15 is the opening tubular, fuselage 16 is hollow pipe, head 15 axis and fuselage 16 axis extended lines consist of 135 °～180 ° angles, described pin medicated cap 4 is fixed in the head 15, and described wire 6 and escape pipe 7 pass from fuselage 16; Fuselage 17 profiles are common dental turbo mobile phone profile, but smaller and more exquisite, are convenient to hold and mouthful interior operation.During work, can adopt pen-holding type to hold fuselage 17, penetrate 22 metal needle 3 and insert pending tooth root pipe and get final product producing plasma flow, still adopt felt pad 2 restriction insertion depths to avoid metal needle 3 to exceed apical foramen of tooth.
In above-described embodiment, the metal needle of described syringe needle can be the straight line solid type, shown in Fig. 4 (a) top;
Metal needle is positioned at the part of insulation crust and metal needle head end and exposes the insulation crust part and also can form knuckle, is the bending solid type, shown in Fig. 4 (a) below.
In above-described embodiment, the metal needle of described syringe needle can be the straight line hollow tubular, and its head end sealing, head end sidewall have aperture, shown in Fig. 5 (a) top,
Metal needle is positioned at the part of insulation crust and metal needle head end and exposes the insulation crust part and also can form knuckle, is the bending hollow tubular, and its head end sealing, head end sidewall have aperture, shown in Fig. 5 (a) below.
Fig. 5 (a) produces the plasma jet sketch map for the solid metal needle-discharging;
Fig. 5 (b) produces the plasma jet sketch map for the hollow metal needle-discharging.
Claims (5)
1.. a kind of medicine carrying plasma needle device, comprise syringe needle, pin medicated cap (4), source of the gas (10), medicine bottle (11), plasma jet source, it is characterized in that:
Described syringe needle is comprised of insulation crust (1), felt pad (2) and metal needle (3), insulation crust (1) is for having the cylinder of axially extending bore, described metal needle (3) inserts insulation crust (1) axially extending bore, insulation crust (1) is exposed at metal needle (3) head and the tail two ends, and metal needle (3) head end is installed with felt pad (2);
Described pin medicated cap (4) is the reeded cylinder of surperficial tool, hole shape and described syringe needle insulation crust (1) form fit in the described groove, described recess sidewall insulation, bottom portion of groove is embedded with sheet metal (5), and bottom portion of groove and sheet metal (5) have coaxial pore;
Described syringe needle insulation crust inserts described pin medicated cap groove, and metal needle (3) tail end contacts with described sheet metal (5);
Described pin medicated cap bottom portion of groove sheet metal (5) connects the plasma jet source output terminal by wire (6); Pore on the sheet metal (5) is communicated with medicine bottle (11) by escape pipe (7), and medicine bottle (11) connects source of the gas (10) by air inlet pipe (9);
Described plasma jet source is made of resistance (12), electric capacity (13) and the high-voltage pulse power source (14) of successively series connection, the outer junction point ground connection of high-voltage pulse power source (14), the outer junction point of resistance (12) is the plasma jet source output terminal.
2. medicine carrying plasma needle device as claimed in claim 1 is characterized in that:
Described pin medicated cap (4) is installed in the hand-held mechanism, hand-held mechanism is by head (15) and fuselage (16) formation that is connected as a single entity, head (15) is the opening tubular, fuselage (16) is hollow pipe, head (15) axis and fuselage (16) axis extended line consist of 135 °～180 ° angles, described pin medicated cap (4) is fixed in the head (15), and described wire (6) and escape pipe (7) pass from fuselage (16).
3. medicine carrying plasma needle device as claimed in claim 1 or 2 is characterized in that:
In the described plasma jet source, the resistance of described resistance is 40 kilo-ohms～100 kilo-ohms, and the capacitance of described electric capacity is 10 pico farads～100 pico farads, and the voltage of described high-voltage pulse power source is 4 kilovolts～10 kilovolts, and frequency is 50 hertz～10 KHz;
Described source of the gas (10), medicine bottle (11) and plasma jet source all are placed in the casing (8).
4. medicine carrying plasma needle device as claimed in claim 3 is characterized in that:
The metal needle of described syringe needle (3) is hollow tubular, and its head end sealing, head end sidewall have aperture.
5. medicine carrying plasma needle device as claimed in claim 3 is characterized in that:
The metal needle of described syringe needle (3) is positioned at the part of insulation crust (1) and metal needle (3) head end and exposes insulation crust (1) part and form knuckle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220257611 CN202637148U (en) | 2012-06-01 | 2012-06-01 | Medicament-carrying plasma needle device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220257611 CN202637148U (en) | 2012-06-01 | 2012-06-01 | Medicament-carrying plasma needle device |
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| Publication Number | Publication Date |
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| CN202637148U true CN202637148U (en) | 2013-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220257611 Expired - Fee Related CN202637148U (en) | 2012-06-01 | 2012-06-01 | Medicament-carrying plasma needle device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104706418A (en) * | 2015-02-15 | 2015-06-17 | 贵阳中医学院 | Pollution-resisting sleeve capable of preventing electric ion cutter pollution and using method thereof |
| CN105726140A (en) * | 2016-01-22 | 2016-07-06 | 北京大学 | Tooth root canal disinfection device based on atmospheric-pressure low-temperature plasma |
| CN112741704A (en) * | 2020-12-29 | 2021-05-04 | 江苏容正医药科技有限公司 | Plasma jet device for cleaning and/or whitening teeth |
| CN113081324A (en) * | 2021-03-29 | 2021-07-09 | 华中科技大学同济医学院附属协和医院 | Root canal file for preventing fracture and manufacturing method thereof |
-
2012
- 2012-06-01 CN CN 201220257611 patent/CN202637148U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104706418A (en) * | 2015-02-15 | 2015-06-17 | 贵阳中医学院 | Pollution-resisting sleeve capable of preventing electric ion cutter pollution and using method thereof |
| CN105726140A (en) * | 2016-01-22 | 2016-07-06 | 北京大学 | Tooth root canal disinfection device based on atmospheric-pressure low-temperature plasma |
| CN112741704A (en) * | 2020-12-29 | 2021-05-04 | 江苏容正医药科技有限公司 | Plasma jet device for cleaning and/or whitening teeth |
| CN113081324A (en) * | 2021-03-29 | 2021-07-09 | 华中科技大学同济医学院附属协和医院 | Root canal file for preventing fracture and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20180601 |