CN209574920U - A kind of gutta-percha filling instrument fever needle of local heating - Google Patents
A kind of gutta-percha filling instrument fever needle of local heating Download PDFInfo
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- CN209574920U CN209574920U CN201822144829.5U CN201822144829U CN209574920U CN 209574920 U CN209574920 U CN 209574920U CN 201822144829 U CN201822144829 U CN 201822144829U CN 209574920 U CN209574920 U CN 209574920U
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- wall
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- heating wire
- needle
- inner shaft
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Abstract
The utility model relates to a kind of gutta-percha of local heating filling instrument fever needles, it includes cathode outer wall and the positive inner shaft that is arranged in cathode outer wall one end, insulating layer is equipped in the cathode outer wall, the cathode outer wall is equipped with hot tip far from one end of positive inner shaft, the outer diameter of the hot tip is less than the outer diameter of cathode outer wall, the hot tip includes the heating wire being arranged in cathode outer wall, and the heating wire is fixedly connected close to one end of positive inner shaft with positive inner shaft.The utility model has fever needle local heating, and power consumption is small, safer effect.
Description
Technical field
The utility model relates to the technical fields of gutta-percha filling instrument, fill instrument more particularly, to a kind of gutta-percha of local heating
Generate heat needle.
Background technique
Gutta-percha fills instrument in dental root canal therapeutic process, to using other equipment complete widened canalis radicis dentis into
Row filling.Usually to heat and soften gutta-percha point, carry out root canal deviation in a manner of injection packing material etc..
For heating and softening the gutta-percha point cutter or gutta-percha point heater of gutta-percha point, fever member in gutta-percha filling instrument
Part is commonly called as fever needle, and the fever usual inner shaft of needle is anode, and outer wall is that (cathode in inner shaft, outer wall are positive and great have identical original cathode
Reason and function) casing composition, its working principle is that be powered between a positive electrode and a negative electrode, the needle fever that makes to generate heat reaches expected temperature
Degree.
Fever needle in the prior art is whole fever, whole fever so that the position of inoperative is also heated, and these
The inoperative position being heated is easy scald operator during use and scalds the oral cavity of patient, and there are security risks.
Utility model content
The purpose of the utility model is to provide a kind of gutta-percha of local heating filling instrument fever needles, and there is fever needle locally to send out
The advantages of heat, reduction security risk.
The above-mentioned purpose of utility model of the utility model has the technical scheme that
A kind of gutta-percha filling instrument fever needle of local heating, including cathode outer wall and is arranged in cathode outer wall one end just
Pole inner shaft, the cathode outer wall is interior to be equipped with insulating layer, and the cathode outer wall is equipped with hot tip, institute far from one end of positive inner shaft
The outer diameter for stating hot tip is less than the outer diameter of cathode outer wall, and the hot tip includes the heating wire being arranged in cathode outer wall,
The heating wire is fixedly connected close to one end of positive inner shaft with positive inner shaft.
By using above-mentioned technical proposal, gutta-percha fills instrument in use, loading electricity between cathode outer wall and positive inner shaft
After pressure, due to the isolation of insulating layer, electric current will all pass through heating wire.Heating wire is located at hot tip, and then the point that only generates heat
Local pyrexia is held, inoperative position does not generate heat, not only reduces power consumption, also improve heating speed, operator is using
During it is safer.
The utility model is further arranged to: the resistance value of the heating wire is greater than between cathode outer wall and positive inner shaft
Resistance value.
By using above-mentioned technical proposal, the resistance value of heating wire is greater than the resistance between cathode outer wall and positive inner shaft
Value, according to the formula of calorific value, in identical electric current and in heating time, the resistance value of heating wire is bigger, and calorific value is bigger, temperature
It spends higher.Therefore, the calorific value of gutta-percha filling instrument concentrates on the region of heating wire close to whole, and then improves softening or cut
It is disconnected to wait operation, it improves work efficiency, also improves safety.
The utility model is further arranged to: the hot tip is needle-shaped in circular cone.
By using above-mentioned technical proposal, during gutta-percha fills instrument use, hot tip is first into canalis radicis dentis
In, hot tip is needle-shaped in circular cone, plays the role of guiding, and more convenient hot tip enters in canalis radicis dentis, and then improves
Pack effectiveness.
The utility model is further arranged to: the hot tip far from cathode outer wall one end outer diameter be 0.3~
0.6mm。
By using above-mentioned technical proposal, the outer diameter of hot tip is excessive, and the heat of heating wire is not easy to pass to hot tip
Outer wall so that gutta-percha be not easy soften or cut off, not only cause power consumption big, also extend the operating time.Fever point
The outer diameter at end is too small, and gutta-percha softening is too fast, and for hot tip also not completely into canalis radicis dentis is arrived, gutta-percha is softened, makes when operation
It is poor at the closing of root canal orifice.
The utility model is further arranged to: the diameter of the heating wire is 0.1~0.2mm.
By using above-mentioned technical proposal, the diameter of heating wire is bigger, and resistance value is smaller, and calorific value is lower, and temperature is got over
It is small.The diameter of heating wire is smaller, and resistance value is bigger, and heating wire is easy to be blown, and then needs replacing new heating wire, increases
Cost.
The utility model is further arranged to: the anode inner shaft is outward extended with connecting pin close to one end of heating wire,
And connecting pin is located in hot tip, the connecting pin is fixedly connected with heating wire.
By using above-mentioned technical proposal, the connection of the setting of connecting pin more convenient positive inner shaft and heating wire, in turn
So that heating wire is located at hot tip, so that calorific value concentrates on hot tip, and then realizes local pyrexia, improve safety.
The utility model is further arranged to: the connecting pin is equipped with the peace being embedded in for heating wire close to one end of heating wire
Hole is filled, the heating wire is fixed in mounting hole by welding.
By using above-mentioned technical proposal, heating wire is welded in mounting hole, so that heating wire is not easy to fall off from connecting pin,
It improves work efficiency.
The utility model is further arranged to: the junction of the cathode outer wall and hot tip is equipped with guide part.
By using above-mentioned technical proposal, guide part can reduce the interference of gutta-percha filling instrument in use, in turn
More convenient operation, reduces security risk, improves work efficiency.
The utility model is further arranged to: the material of the insulating layer is polyimides.
By using above-mentioned technical proposal, the insulating layer that polyimides is made into can mitigate the weight of insulating layer, reduce exhausted
The volume of edge layer, and insulation effect is high.
In conclusion the advantageous effects of the utility model are as follows:
1. using hot tip and the heating wire in hot tip, gutta-percha is enabled to fill instrument local pyrexia,
Energy consumption is thereby reduced, safety is improved；
2. using mounting hole, enables to heating wire to be not easy to fall off from connecting pin, ensure that electric current enters heating wire,
To accelerate heating wire fever, efficiency is improved.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model.
Fig. 2 is the partial enlargement diagram of part A in Fig. 1.
In figure, 1, cathode outer wall；2, positive inner shaft；21, connecting pin；211, mounting hole；3, insulating layer；4, hot tip；
41, heating wire；5, guide part.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
It referring to Fig.1, is a kind of gutta-percha filling instrument fever needle of local heating disclosed by the utility model, including cathode outer wall
1, the insulating layer 3 being fixed on 1 inner wall of cathode outer wall and the positive inner shaft 2 being arranged in insulating layer 3, and positive inner shaft 2 is located at
One end of cathode outer wall 1.Wherein, the material of cathode outer wall 1 is preferably stainless steel, and the material of positive inner shaft 2 is preferably filamentary silver, absolutely
The material of edge layer 3 is preferably polyimides.
Referring to Fig.1, cathode outer wall 1 is equipped with the fever point that outer diameter is less than 1 outer diameter of cathode outer wall far from one end of positive inner shaft 2
End 4, hot tip 4 are equipped with guide part 5 in circular cone is needle-shaped or " 7 " font between hot tip 4 and cathode outer wall 1.Guiding
Portion 5 can reduce the interference of fever needle in operation, improve the operating efficiency of gutta-percha filling instrument.
Referring to Fig.1, heating wire 41 is equipped in the insulating layer 3 in hot tip 4, the material of heating wire 41 is preferably that nickel chromium triangle closes
Gold, and the resistance value of heating wire 41 is greater than the resistance value between cathode outer wall 1 and positive inner shaft 2.According to the formula of calorific value, In
Identical electric current and in heating time, the resistance value of heating wire 41 is bigger, and calorific value is bigger, and temperature is higher.Heating wire 41 is located at
Hot tip 4, so that calorific value all concentrates on hot tip 4, and then the operation such as improve softening or cutting, improve work
Efficiency.And other regions, since resistance value is very small, the heat of generation is small, so that surface does not generate heat substantially, operator
It is safer when in use.
Referring to Fig.1, outer diameter 0.3~0.6mm of the hot tip 4 far from 1 one end of cathode outer wall, corresponding heating wire 41
0.1~0.2mm of diameter.The outer diameter of hot tip 4 is excessive, and the heat of heating wire 41 is not easy to pass to the outer wall of hot tip 4, in turn
So that gutta-percha is not easy to soften or cut off, operation difficulty is improved；The outer diameter of hot tip 4 is too small, and gutta-percha softening is too fast, is easy to make
It is poor at the closing of root canal orifice.The diameter of heating wire 41 is bigger, and resistance value is smaller, and calorific value is lower, and temperature is also smaller.Fever
The diameter of silk 41 is smaller, and resistance value is bigger, and heating wire 41 is easy to be blown, and then needs replacing new heating wire 41, increases
Cost.
Referring to Fig.1, positive inner shaft 2 is outward extended with connecting pin 21 close to one end of heating wire 41, and connecting pin 21 is located at hair
One end of heated tip 4 is equipped with the mounting hole 211 being embedded in for heating wire 41, and heating wire 41 is fixed on by way of welding or pressing
In mounting hole 211.
The implementation principle of the present embodiment are as follows: gutta-percha filling instrument between cathode outer wall 1 and positive inner shaft 2 in use, load
Voltage, due to the isolation of insulating layer 3, electric current is by all by heating wire 41, since the resistance value of heating wire 41 is very big, in turn
So that fever concentrates on heating wire 41, in the outer wall for being transmitted to hot tip 4,4 outer wall of hot tip is contacted with gutta-percha point,
The operation for being softened or being cut off.Other area resistance values are very small, and the heat of generation is also small, and then operator is facilitated to hold,
It is safer.
The embodiment of present embodiment is the preferred embodiment of the utility model, and not limitation is originally practical new according to this
The protection scope of type, therefore: the equivalence changes that all structures, shape, principle according to the utility model are done should all be covered by practical
Within novel protection scope.
Claims (9)
- The needle 1. a kind of gutta-percha filling instrument of local heating generates heat, including cathode outer wall (1) and setting are in cathode outer wall (1) one end Positive inner shaft (2), be equipped with insulating layer (3) in the cathode outer wall (1), it is characterised in that: the cathode outer wall (1) is far from just One end of pole inner shaft (2) is equipped with hot tip (4), and the outer diameter of the hot tip (4) is less than the outer diameter of cathode outer wall (1), institute Stating hot tip (4) includes the heating wire (41) being arranged in cathode outer wall (1), and the heating wire (41) is close to positive inner shaft (2) one end is fixedly connected with positive inner shaft (2).
- The needle 2. a kind of gutta-percha filling instrument of local heating according to claim 1 generates heat, it is characterised in that: the heating wire (41) resistance value is greater than the resistance value between cathode outer wall (1) and positive inner shaft (2).
- The needle 3. a kind of gutta-percha filling instrument of local heating according to claim 2 generates heat, it is characterised in that: the fever point Hold (4) needle-shaped in circular cone.
- The needle 4. a kind of gutta-percha filling instrument of local heating according to claim 3 generates heat, it is characterised in that: the fever point Holding the outer diameter of (4) far from cathode outer wall (1) one end is 0.3~0.6mm.
- The needle 5. a kind of gutta-percha filling instrument of local heating according to claim 4 generates heat, it is characterised in that: the heating wire (41) diameter is 0.1~0.2mm.
- The needle 6. a kind of gutta-percha filling instrument of local heating according to claim 5 generates heat, it is characterised in that: in the anode Axis (2) is outward extended with connecting pin (21) close to the one end of heating wire (41), and connecting pin (21) are located in hot tip (4), The connecting pin (21) is fixedly connected with heating wire (41).
- The needle 7. a kind of gutta-percha filling instrument of local heating according to claim 6 generates heat, it is characterised in that: the connecting pin (21) one end close to heating wire (41) is equipped with the mounting hole (211) being embedded in for heating wire (41), and the heating wire (41) passes through The mode of welding is fixed in mounting hole (211).
- The needle 8. a kind of gutta-percha filling instrument of local heating according to claim 1 generates heat, it is characterised in that: outside the cathode The junction of wall (1) and hot tip (4) is equipped with guide part (5).
- The needle 9. a kind of gutta-percha filling instrument of local heating according to claim 8 generates heat, it is characterised in that: the insulating layer (3) material is polyimides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822144829.5U CN209574920U (en) | 2018-12-19 | 2018-12-19 | A kind of gutta-percha filling instrument fever needle of local heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822144829.5U CN209574920U (en) | 2018-12-19 | 2018-12-19 | A kind of gutta-percha filling instrument fever needle of local heating |
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| Publication Number | Publication Date |
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| CN209574920U true CN209574920U (en) | 2019-11-05 |
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| CN201822144829.5U Active CN209574920U (en) | 2018-12-19 | 2018-12-19 | A kind of gutta-percha filling instrument fever needle of local heating |
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| CN (1) | CN209574920U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109350272A (en) * | 2018-12-19 | 2019-02-19 | 常州赛乐医疗技术有限公司 | A kind of gutta-percha filling instrument fever needle of local heating |
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2018
- 2018-12-19 CN CN201822144829.5U patent/CN209574920U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109350272A (en) * | 2018-12-19 | 2019-02-19 | 常州赛乐医疗技术有限公司 | A kind of gutta-percha filling instrument fever needle of local heating |
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