KR101588419B1 - Heating charger for dental material by thermoelectric module - Google Patents

Abstract

The present invention relates to a dental heating device for a dental mat, the dental heating device comprising: a housing having a distal end opened; a detachable coupling to an open end of the housing, the dental mat being received therein, A cartridge to which a needle member to be discharged is coupled; A protective casing coupled to a front end of the housing to surround the outside of the cartridge; A heating unit provided between the protective casing and the cartridge, the heating unit heating the cartridge; And a cartridge driving part for pressing the rear end of the cartridge to discharge the dental mat to the outside through the needle member, wherein the heating part includes: a heating tube into which the cartridge is inserted; And a Peltier element disposed on an outer circumferential surface of the heating tube and applying heat to the heating tube by a Peltier effect.

Description

Technical Field [0001] The present invention relates to a dental mat heating apparatus for heating a dental mat by a Peltier element,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a dental matheater heating injector, and more particularly, to a dental matheater heater injector having an improved structure for heating a dental mat using a Peltier effect.

In dentistry, tooth decay is removed by using a perforator to remove cavities, and if the dimension is damaged, the damaged or contaminated dimension is removed, and then the dental mat (the cement or filler for filling the root canal) ) Is filled in a closed state and the prosthesis is used.

When filling the canal, the gutta percha cone will be used as a temporary filler to help the dental matte penetrate the canal and completely close it. As a charger for bringing gutta percha cones into close contact with the root canal walls, there is used a dental charger (an observer) disclosed in Japanese Laid-Open Patent Application No. 2008-0003483 and Japanese Laid-Open Patent Publication No. 2008-0080470.

In a conventional dental charger as disclosed, a hot wire heater is used to supply a solid filler in liquid form when the dental mat is supplied to the teeth using a needle. That is, the hot wire heater is wound outside the cartridge to heat the filler inside by heating the cartridge.

However, such a conventional dental charger has a disadvantage in that the amount of heat lost to the outside among the heat amount generated from the heat wire heater is relatively large, and the heat efficiency is relatively low. In addition, since not only the cartridge is heated by the hot wire heater but the outer casing located outside is also heated, the patient's lips contact with the dental charger and the patient may suffer burning.

An object of the present invention is to solve the above-mentioned problems, and to provide a dental mat heating injector capable of heating only a cartridge in which a dental mat is accommodated to safely sample a patient.

The above objects and various advantages of the present invention will become more apparent from the preferred embodiments of the present invention by those skilled in the art.

The object of the invention can be achieved by a dental matrile heating injector. A dental mat heating apparatus for a dental implant according to the present invention includes: a housing having a distal end opened; a detachable detachable front end of the housing, the dental mat being received therein, A cartridge coupled to the needle member; A protective casing coupled to a front end of the housing to surround the outside of the cartridge; A heating unit provided between the protective casing and the cartridge, the heating unit heating the cartridge; And a cartridge driving part for pressing the rear end of the cartridge to discharge the dental mat to the outside through the needle member, wherein the heating part includes: a heating tube into which the cartridge is inserted; And a Peltier element disposed on an outer circumferential surface of the heating tube and applying heat to the heating tube by a Peltier effect.

According to one embodiment, the connection region extending from the outer circumferential surface of the heating tube to the Peltier element, and the connection region formed by the Peltier element are formed horizontally, and the connection rib is in surface contact with the Peltier element.

According to one embodiment, the protective casing includes: a heat dissipation casing of a metal material disposed in contact with the Peltier element to discharge heat discharged from the Peltier element to the outside; And an outer casing that covers the outside of the heat-dissipating casing to block contact between the heat-dissipating casing and the patient's slit.

According to one embodiment, the Peltier elements are formed in a plurality of, and the heating tube is provided in a polygonal shape having sides corresponding to the number of the Peltier elements.

According to an embodiment of the present invention, the housing includes: an upper housing that houses the heating unit and the cartridge driving unit therein; And a handle housing which is formed at a rear end of the upper housing to extend in a downward direction and is held by a user, wherein the upper housing and the handle housing are coupled to each other to form a gun.

According to one embodiment, the housing is provided in the form of a pen that receives the heating portion and the cartridge therein and has a tip coupled to the protective casing.

Since the dental mat heating cartridge according to the present invention heats the dental mat cartridge using the Peltier effect, the external heat loss is small and the thermal efficiency can be increased.

Also, since only the dental mat cartridges are heated, the relatively low temperature heat is discharged to the outside, and the outside of the dental mat cartridge is enclosed by the protective casing. Therefore, even if the patient's lips contact with the protective casing, Can be used.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing the external structure of a dental mat according to a preferred embodiment of the present invention,
FIG. 2 is a sectional view showing an internal configuration of a dental mat of a preferred embodiment of the present invention,
FIG. 3 is a perspective view showing an internal configuration of a dental mat according to a preferred embodiment of the present invention,
4 is a perspective view showing a configuration of a heating unit of a dental mat according to a preferred embodiment of the present invention,
5 is a sectional view showing another embodiment of the heating unit of the dental mat of the preferred embodiment of the present invention,
FIG. 6 is a perspective view showing the external structure of a dental mat according to another embodiment of the present invention, and FIG.
FIG. 7 is a perspective view illustrating an internal configuration of a dental mat according to another embodiment of the present invention. FIG.

For a better understanding of the present invention, a preferred embodiment of the present invention will be described with reference to the accompanying drawings. The embodiments of the present invention may be modified into various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. The present embodiments are provided to enable those skilled in the art to more fully understand the present invention. Therefore, the shapes and the like of the elements in the drawings can be exaggeratedly expressed to emphasize a clearer description. It should be noted that in the drawings, the same members are denoted by the same reference numerals. Detailed descriptions of well-known functions and constructions which may be unnecessarily obscured by the gist of the present invention are omitted.

FIG. 1 is a perspective view of a dental mat heating injector 100 according to a preferred embodiment of the present invention, FIG. 2 is a sectional view showing the internal structure of a dental mat heating injector 100, FIG. 3 Is a perspective view showing the internal configuration of the dental mat heating injector 100. As shown in Fig.

As shown in the drawing, the dental mat heating injector 100 according to the present invention includes a housing 110 formed to have a total shape as a whole, a housing 110 detachably coupled to a front end of the housing 110, A cartridge 130 which receives the dental mat G by driving the cartridge driving part 140 and discharges the dental mat G to the outside by being driven by the cartridge driving part 140; A cartridge driving part 140 for pressing the rear end of the cartridge 130 to discharge the inside dental mat G to the outside and a cartridge driving part 140 and a heating part 160 (Not shown).

The housing 110 is composed of a first side housing 111 and a second side housing 113 which are coupled to each other at right and left sides and form a housing space therein. The first side housing 111 and the second side housing 113 are combined to have a total shape as a whole. The first side housing 111 includes an upper housing 111a for accommodating the cartridge 130, the cartridge driving unit 140 and the heating unit 160 therein and a lower housing 111a extending downwardly from the upper end of the upper housing 111a, And a handle housing 111b which is gripped by hand during the procedure.

The first side housing 111 and the second side housing 113 are formed symmetrically with each other and an accommodation space for accommodating the cartridge driving part 140 and the heating part 160 is formed therein. When the first side housing 111 and the second side housing 113 are engaged, the top end of the upper housing 111a is opened and the cartridge 130 is detachably coupled.

A display window 115 is formed on the plate surface of the handle housing 111b. The display window 115 displays a procedure time, a procedure temperature, and the like. A battery 149 and a substrate 183 are accommodated in the handle housing 111b.

The protective casing 120 is detachably coupled to the front end of the housing 110. The protective casing 120 receives the cartridge 130 and the heating unit 160 therein. The protective casing 120 prevents the heat generated in the heating unit 160 from contacting the lips of the patient. The protective casing 120 is detached from the front end of the housing 110 at the time of replacement of the cartridge 130 and reconnected to the housing 110 after the insertion of the cartridge 130. [

The protective casing 120 includes an outer casing 121 exposed to the outside and a heat radiation casing 123 disposed between the outer casing 121 and the Peltier elements 163 and 165. The outer casing 121 may be made of silicon and the heat dissipation casing 123 may be made of a metal material having a good heat transfer efficiency.

Here, in the Peltier elements 163 and 165 according to the present invention, the heat generating surface 163a is heated up to 200 ° C and the upper surface 163b is heated up to 130 ° C. The heat dissipation casing 123 and the outer casing 121 are designed to withstand temperatures of up to 130 ° C and to discharge heat to the outside.

The heat radiation casing 123 is disposed in direct contact with the upper surface 163b of the Peltier elements 163 and 165 as shown in FIG. Thereby releasing heat generated from the upper surface of the Peltier elements 163 and 165 to the outside. It is preferable that the heat-radiating casing 123 is formed of a metal material such as aluminum having high heat transfer efficiency. In some cases, a plurality of heat dissipation fins (not shown) may be provided on the inner surface of the heat dissipation casing 123 so that the heat dissipation casing 123 can further increase the heat dissipation efficiency.

The outer casing 121 surrounds the outside of the heat radiation casing 123. The outer casing 121 may be in contact with the patient's lips during filling of the dental mat. When the radiating casing 123 is in direct contact with the radiating casing 123, since the patient feels hot, the radiating casing 123 is covered to reduce the heat.

At this time, a heat sink (not shown) may be additionally provided between the heat radiation casing 123 and the outer casing 121 to increase the heat radiation efficiency of the heat radiation casing 123. Further, a ventilation hole (not shown) may be provided through the heat dissipation casing 123 and the outer casing 121 to increase the heat radiation efficiency.

The outer casing 121 is preferably made of a silicone material having elasticity. Since the outer casing 121 is in direct contact with the lips of the patient, the outer casing 121 is used for disposable use at each procedure.

The cartridge 130 is detachably coupled to the distal end of the housing 110 while accommodating the dental mat G therein. The cartridge 130 includes a cartridge main body 131 in which the dental mat G is accommodated, a needle 133 coupled to the distal end of the cartridge main body 131 to discharge the dental mat G to the outside, And a hub 135 coupled to the coupling region of the needle 133 and the heat dissipation casing 123 to fix the cartridge body 131 to the heat dissipation casing 123.

The cartridge main body 131 is formed in the shape of a circular tube whose rear end is opened. A solid dental mat G such as a solid gutta-percha or resin is accommodated in the cartridge main body 131. The rear end of the cartridge main body 131 is opened so that the dental mat G is exposed to the inside of the heating tube 161 when the cartridge main body 131 is inserted into the heating tube 161. At this time, the dental mat (G) contacts the piston (141) and presses the dental mat (G) in a direction in which the dental mat (G) is discharged to the outside.

The cartridge main body 131 is formed of a metal material so as to rapidly transfer the heat applied from the Peltier elements 163 and 165 to the dental mat G.

4, the needle 133 is coupled to the front end 131a of the cartridge body 131. As shown in FIG. The cartridge main body 131 is accommodated in the heating pipe 161 and receives heat from the Peltier elements 163 and 165. The solid dental mat (G) is melted by the heat applied from the Peltier elements (163, 165) and discharged in a gel state.

The hub 135 is inserted into a space between the front end 131a of the cartridge body 131 and the heat radiation casing 123 to fix the position of the cartridge body 131. The user can separate the hub 135 from the outside to separate the cartridge body 131 from the outside or insert it into the heating tube 161. [

The cartridge driving unit 140 pressurizes the cartridge 130 under the control of the controller 180 in accordance with whether or not the input button 181 is pressed so that the dental mat G is discharged through the needle 133. 3, the cartridge driving unit 140 includes a piston 141 disposed at the rear end of the cartridge 130 and a piston 141 coupled to a rear end of the piston 141 to be driven by the driving motor 145, A drive motor 145 for driving the screw 143 and a battery 149 for supplying power to the drive motor 145. The screw 143 is a screw that moves the screw 143 in a straight line.

The piston 141 contacts and presses the rear end of the dental mat (G). The rear end of the solid dental mat G is inserted into the piston 141 to fix the position with the piston 141 when the cartridge main body 131 is inserted into the heating tube 161. [ The screw (143) is fixedly coupled to the rear end of the piston (141). When the screw 143 is advanced or retracted by driving of the drive motor 145, the piston 141 moves forward or backward together with the screw 143. When the piston 141 advances, the dental mat G is pressurized in a direction in which the dental mat G is discharged, and is liquefied by heating of the heating unit 160 and is discharged to the outside. Here, the piston 141 is moved in a state accommodated in the housing 142.

The drive motor 145 is driven by receiving power from the battery 149 under the control of the control unit 180. [ A screw 143 is coupled to a drive shaft (not shown) of the drive motor 145 to rotate forward and backward to move the piston 141 forward or backward.

Meanwhile, the ball stopper 147 shown in the figure serves to hold the screw 143 when the screw 143 is manually operated instead of the driving motor 145.

The heating unit 160 heats and softens the dental mat G supplied from the cartridge 130 to the needle 133. The heating unit 160 heats the dental mat by the Peltier effect. Fig. 4 is an enlarged perspective view of the configuration of the heating unit 160. Fig.

The heating unit 160 includes a heating pipe 161 for receiving the cartridge 130 therein and a pair of Peltier elements 163 and 165 disposed at the top and bottom of the heating pipe 161 for heating the heating pipe 161 And a connecting rib 162 connecting the heating pipe 161 and the Peltier elements 163 and 165. [ 2, the front end of the heating pipe 161 receives the cartridge 130 therein, and the rear end receives the piston member 163 therein. The heating tube 161 is heated by the heat transmitted from the Peltier elements 163 and 165, and this heat is transferred to the cartridge 130 to soften the dental mat G.

The heating pipe 161 is formed in the shape of a circular tube, but has a connecting rib 162 connected to the Peltier elements 163 and 165 on the outer circumferential surface thereof. The Peltier elements 163 and 165 are formed in a rectangular housing shape having a heating surface 163a and a cooling surface 163b. When the Peltier elements 163 and 165 are arranged on the outer circumferential surface of the circular tube-shaped heating pipe 161 in a tangential form, the contact area is small and the heating efficiency is small.

A connecting rib 162 having a flat plate-shaped contact area between the Peltier elements 163 and 165 is disposed on the upper portion and the lower portion of the heating pipe 161. The connection rib 162 is formed to have an area corresponding to the width of the Peltier elements 163 and 165 as shown in FIG. The heating surface 163a of the Peltier elements 163 and 165 is seated and brought into contact with the flat end of the connecting rib 162. [

An adhesive member (not shown) is disposed on the coupling surface between the connection rib 162 and the Peltier elements 163 and 165 so as to fix the mutual positions of the Peltier elements 163 and 165 and the Peltier elements 163 and 165 and the connection rib 162 A physical fixing member (not shown) for fixing the heating pipe 161 may be provided. Whereby the positions of the Peltier elements 163 and 165 can be fixed.

 When power is applied to the Peltier elements 163 and 165 and heat is generated on the heating surface 163a, the heat is transmitted to the heating pipe 161 through the connection rib 162. [ In the Peltier elements 163 and 165, heat is generated on the heating surface 163a by the Peltier effect, and the cooling surface 163b in the direction facing the heating surface 163a is cooled. When the DC voltage is applied to the two terminal ends 163c of the two Peltier elements 163 and 165, the cooling surface 163b absorbs the cooling effect according to the direction of the current, and the heating surface 163a on the opposite side generates heat.

The heating surface 163a of the Peltier element 163 according to the present invention generates heat in the range of 160 to 200 占 폚 and the cooling surface 163b has the temperature difference of 70 占 폚 to the heating surface 163a, 130 < 0 > C. The cooling surface 163b has a temperature lower than that of the heating surface 163a, but has a high temperature of 90 ° C to 130 ° C. Therefore, the cooling surface 163b contacts the heat-dissipating casing 123 and rapidly discharges heat to the outside.

The control unit 180 controls the cartridge driving unit 140 and the heating unit 160 to operate according to a user's input signal. The control unit 180 transmits the power of the battery 149 to the driving motor 145 in accordance with the input signal of the input button 181 protruding outside the handle housing 111b. The control unit 180 is implemented in the form of a substrate 183 disposed under the screw 143.

Here, the Peltier elements 163 and 165 and the substrate 183 are connected by a temperature sensor (not shown) to limit the maximum temperature by sensing the temperature of the Peltier elements 163 and 165 in the controller 180. The current temperature of the Peltier elements 163 and 165 is displayed through the display window 115. [

The operation of the dental mat heating injector 100 according to the present invention having such a configuration will be described with reference to Figs. 1 to 4. Fig.

The operator removes the outer casing 121 from the front end of the upper housing 111a and inserts the new cartridge 130 filled with the dental mat G into the heating tube 160. At this time, a sensor (not shown) for sensing the maximum advancing position and the maximum reverse position of the piston 141 is provided in the heating pipe 160. When the piston 141 reaches the maximum advancing position, the motor is driven to detect the sensor, and the piston 141 is automatically moved backward.

The cartridge body 131 is coupled to the inside of the heating tube 110 and then the hub 135 is inserted between the heat radiation casing 123 and the front end 131a of the cartridge body 131 to fix the position of the cartridge body 131 . Then, the outer casing 121 is coupled to the outside of the heat dissipation casing 123.

When the input button 181 is pressed, the power of the battery 149 is transmitted to the Peltier elements 163 and 165. Current is supplied to the Peltier elements 163 and 165 as shown in FIG. 4 according to the supply of the power, and the heating surface 163a, which is in contact with the heating tube 161, is heated.

The connecting rib 162 and the heating tube 161 which are in contact with the heating surface 163a are heated and the dental mat G of the cartridge main body 131 accommodated in the heating tube 161 is heated and softened. At this time, the outer cooling surface 163b of the Peltier elements 163, 165 contacting the heat dissipation casing 123 is cooled, and the heat dissipation casing 123 transfers heat to the outside. The outer casing 121 surrounds the heat-dissipating casing 123 to prevent the heat from being directly transmitted to the patient's mouth.

When the worker presses the input button 181, the screw 143 and the piston 141 are advanced by the drive motor 145 to directly press the rear end of the dental mat G to move the dental mat G Is moved toward the needle 133 side.

At this time, since the dental mat G is heated by the Peltier elements 163 and 165, it is softened and supplied.

5 is a front view showing another embodiment of the heating unit 160a of the dental mat heating injector 100 of the present invention.

As shown in FIG. 4, the dental mat heating injector 100 according to the preferred embodiment of the present invention has a connecting rib 162 coupled to the upper and lower portions of the heating tube 161. However, in the heating unit 160a according to another embodiment, the Peltier elements 163, 165, and 166 are arranged in a triangular shape in the heating pipe 161 '. That is, two or more Peltier elements 163, 165, and 166 may be disposed in the heating pipe 161 'depending on the supply amount and feeding speed of the dental mat, and the type thereof. For this, the outer circumferential surface of the heating pipe 161 is arranged in a polygonal shape such as a triangle, a quadrangle, a pentagon, etc., and Peltier elements 163, 165, and 166 may be disposed on the outer circumferential surface of the polygon.

As the number of the Peltier elements 163, 165, and 166 increases, the calorific value increases, and the dental mat G can be heated at a higher speed.

6 and 7 are a perspective view and an internal perspective view illustrating the construction of a dental mat heating injector 100a according to another embodiment of the present invention.

In the dental mat heating injector 100 according to the preferred embodiment described above, the outer housing 110 is provided in the form of a gun. Accordingly, when the user performs the procedure, the distal end of the upper housing 111a is directed toward the patient's lips by gripping the handle housing 111b by hand.

On the other hand, in the dental mat heating injector 100a according to another embodiment, the outer housing 110a is provided in the form of a pen. That is, since it is formed in the form of a straight circular tube, the user holds the rear end of the outer housing 110a when performing the procedure.

An input button 181a is provided on the outer peripheral surface of the outer housing 110a, and a display window 1115a is provided. A protective casing 120a is coupled to the distal end of the outer housing 110a, and a cartridge 130 is provided therein.

A substrate 183a is provided across the inside of the outer housing 110a and a cartridge driving part 140 is provided below the substrate 183a.

The dental matheater heating injector 100 according to the present invention and the dental matheater heating injector 100a of another embodiment differ in their overall shape and pen shape in that both have cartridges 130 connected to Peltier elements 163, ) Is the same as the drive mechanism for discharging the heat to the outside.

As described above, according to the present invention, since the dental mat heating injector heats the cartridge using the Peltier effect, thermal efficiency can be increased due to low external heat loss.

In addition, only the cartridge is heated and the heat is rapidly discharged to the outside, so that even when the patient's mouth and the protective casing come into contact with each other, the heat is not transmitted and can be safely used.

In addition, the dental mat can be heated to a certain temperature since heat is generated constantly regardless of external conditions.

The embodiments of the dental mat heating injector of the present invention described above are merely illustrative and those skilled in the art will appreciate that various modifications and equivalent embodiments are possible without departing from the scope of the invention. . Therefore, it is to be understood that the present invention is not limited to the above-described embodiments. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims. It is also to be understood that the invention includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

100: dental mattial heating injector 110: housing
111: first side housing 111a: upper housing
111b: handle housing 113: second side housing
115: display window 120: protective casing
121: outer casing 123: heat radiation casing
130: cartridge 131: cartridge body
133: Needle 135: Hub
140: Cartridge driving part 141: Piston
143: screw 145: drive motor
147: ball stopper 148: elastic member
149: Battery 160:
161: heating pipe 162: connecting rib
163: Peltier element 163a: heating surface
163b: Cooling surface 180: Control part
181: input button 183:

Claims (6)

In a dental matrile heating injector,
A housing having a front end opened;
A cartridge detachably coupled to an open distal end of the housing and having a needle member accommodating the dental mat therein and discharging the dental mat to the outside;
A protective casing coupled to a front end of the housing to surround the outside of the cartridge;
A heating unit provided between the protective casing and the cartridge, the heating unit heating the cartridge;
And a cartridge driving unit for pressing the rear end of the cartridge to cause the dental mat to be discharged to the outside through the needle member,
The heating unit includes:
A heating tube into which the cartridge is inserted;
And a Peltier element disposed on an outer circumferential surface of the heating tube and applying heat to the heating tube by a Peltier effect.
The method according to claim 1,
And a connection rib extending from an outer circumferential surface of the heating tube to the Peltier element and having a horizontal connection area with the Peltier element and being in surface contact with the Peltier element.
The method according to claim 1,
Wherein the protective casing comprises:
A heat dissipation casing of a metal material disposed in contact with the Peltier element and discharging the heat discharged from the Peltier element to the outside;
An outer casing for covering an outer surface of the heat dissipation casing to block contact between the heat dissipation casing and the slit of the patient;
And a heat sink provided between the heat dissipation casing and the outer casing for discharging the heat of the heat dissipation casing to the outside.
The method of claim 3,
The Peltier element is formed in plurality,
Wherein the heating tube is provided in a polygonal shape having sides corresponding to the number of the Peltier elements.
The method according to claim 1,
The housing includes:
An upper housing housing the heating unit and the cartridge driving unit;
And a handle housing extended downward from a rear end of the upper housing to be held by a user,
Wherein the upper housing and the handle housing are coupled together to form a gun.
The method according to claim 1,
Wherein the housing is provided in the form of a pen that receives the heating unit and the cartridge therein and has a tip to which the protective casing is coupled.

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