WO2011158680A1

WO2011158680A1 - Device for removing organic contaminants on artificial dental roots

Info

Publication number: WO2011158680A1
Application number: PCT/JP2011/062905
Authority: WO
Inventors: 菱沼宣是
Original assignee: ウシオ電機株式会社
Priority date: 2010-06-14
Filing date: 2011-06-06
Publication date: 2011-12-22

Abstract

Disclosed is a device for removing organic contaminants on artificial dental roots using an excimer lamp which emits ultraviolet light, wherein the operator is not irradiated with the ultraviolet light from the excimer lamp and dental roots can be cleaned effectively and safely with ultraviolet light. The device is characterized in that a casing (1) in which an excimer lamp (2) is housed is formed with an opening (4) for radiating emitted light outside, and an illumination block (5) consisting of an ultraviolet light transmissive material is provided being detachably attached to the opening (4), the block having a light incidence section (5a) facing the excimer lamp (2) and a light emission section (5b) facing the artificial dental roots (30).

Description

Organic contamination removal device for artificial tooth roots

This invention relates to an organic contaminant removal apparatus for artificial dental roots used for dental implants, and more particularly to an organic contaminant removal apparatus for cleaning artificial dental roots by irradiating ultraviolet light from an excimer lamp.

In the treatment of dental implants, it is known to remove organic contaminants by washing the artificial tooth root with ultraviolet light. The removal of organic contaminants adhering to the surface is described.
However, in this prior document, only description as an idea is made, and a specific device structure that realizes this is not proposed.
In particular, the radiation of excimer lamps is dangerous for humans to observe, and ozone is generated by ultraviolet light, which has various problems such as adversely affecting workers such as dentists. The realization of a device that can be used in the future is awaited.

Japanese Patent No. 3072303

The problem to be solved by the present invention is that an artificial dental root organic contaminant removal apparatus using an excimer lamp that emits ultraviolet light has an adverse effect on workers such as dentists due to the emitted ultraviolet light and generated ozone. Therefore, it is an object of the present invention to provide a structure of an artificial dental root organic contaminant removal device that can efficiently irradiate an artificial dental root to be irradiated with ultraviolet light emitted from an excimer lamp and can be operated safely and easily.

In order to solve the above problems, an organic contaminant removing apparatus according to the present invention is an artificial tooth organic contaminant removing apparatus using an excimer lamp that emits ultraviolet light, and radiates light to a casing in which the excimer lamp is housed. An irradiation block made of an ultraviolet light transmissive material having an opening for emitting light to the outside and detachably attached to the opening, and having a light incident portion facing the excimer lamp and a light emitting portion facing the artificial tooth root Is provided.

Further, the light emitting portion is formed by a void formed in the irradiation block.
Further, the void is a concave portion opened on the outer surface of the irradiation block.
The void is a hollow hole formed in the irradiation block.

Moreover, the ultraviolet light shielding material is coat | covered on the outer surfaces other than the said light-incidence part and light-projection part in the said irradiation block.
The ultraviolet light blocking material has an ultraviolet light reflection function.

Further, the irradiation block is placed on the excimer lamp.
Further, a cushioning material is interposed between the irradiation block and the excimer lamp.
Further, the cushion material is an electrode provided on an outer surface of a discharge vessel of the excimer lamp.

The casing is provided with an openable / closable block cover made of an ultraviolet light blocking material that covers the irradiation block.
Further, the ultraviolet light blocking material of the block cover is a material that transmits visible light from an excimer lamp.

The top plate of the casing is provided with an artificial tooth root positioning member in the vicinity of the irradiation block.
The positioning member is detachable from the casing.

Further, a lamp housing part for housing the excimer lamp is defined in the casing, and an exhaust pipe is connected to the lamp housing part.
Further, an ozone filter is provided in the exhaust pipe.
Further, the casing is provided with an openable / closable block cover made of an ultraviolet light blocking material that covers the irradiation block, and a processed object storage part is formed by the block cover, and the processed object storage part is It is characterized by communicating with the lamp housing portion.

According to the organic contaminant removing device of the present invention, the artificial tooth root can be efficiently irradiated with ultraviolet light from the excimer lamp through the irradiation block, and the organic contaminant adhering thereto can be effectively removed. In addition, since the irradiation block is detachably attached to the casing, the irradiation block can be removed in advance and heat sterilization can be easily performed prior to the work of removing contaminants from the artificial root.

In addition, by forming the light emitting portion of the irradiation block from a void, it is possible to efficiently irradiate ultraviolet light concentrated on the artificial tooth root inserted and arranged in the void.
The irradiation block is coated with an ultraviolet light blocking material on the outer surface other than the light incident portion and the light emitting portion, so that the artificial tooth root disposed corresponding to the light emitting portion is effectively irradiated with ultraviolet light. In addition, ultraviolet light is not radiated to other undesired locations, and an operator such as a dentist is not irradiated.

Further, since the irradiation block is mounted on the excimer lamp, the irradiation block can be easily attached and detached, and the ultraviolet light from the excimer lamp is hardly absorbed by the surrounding oxygen atmosphere. It enters the irradiation block and irradiates the artificial tooth root to the maximum extent.
In addition, since the casing is provided with an openable / closable block cover made of an ultraviolet light blocking material that covers the irradiation block, the ultraviolet light emitted from the irradiation block is blocked by the block cover, The worker is not irradiated. Furthermore, it is possible to prevent ozone from being generated outside the block cover.
Further, the top plate of the casing is provided with an artificial tooth root positioning member in the vicinity of the irradiation block. Therefore, by simply positioning the tip of the drill having the artificial tooth root attached to the positioning member, the artificial tooth root is positioned. The convenience of use that the root and the irradiation block are properly positioned is also brought about.

In addition, since the excimer lamp is accommodated in the lamp accommodating part in the casing and the exhaust pipe is connected, ozone generated by ultraviolet light in the lamp accommodating part can be exhausted to the outside without being emitted to the surroundings. It does not give any uncomfortable feeling to the workers.
In addition, since an ozone filter is provided in the exhaust pipe, ozone is not included in the exhaust to the outside.
In addition, since the processing object storage part formed on the block cover is communicated with the lamp storage part, ozone generated in the processing object storage part can be decomposed and exhausted to the outside without being diffused to the surroundings. It does not affect the people around you.

The top view of the organic contaminant removal apparatus of this invention. XX sectional drawing of FIG. The principal part expanded sectional view of FIG. FIG. 3 is a YY sectional view of FIG. 2. Another embodiment with differently shaped excimer lamps. Detailed view of various irradiation blocks in the present invention. The fragmentary sectional view of other Examples. FIG. 8 is a partial perspective view of the lamp of FIG. 7. The fragmentary sectional view of the Example by another lamp structure.

FIG. 1 is a top view of an organic dental contaminant removal device for an artificial tooth root according to the present invention, and also shows a dental electric drill 31 having an artificial tooth root 30 attached to the tip.
FIG. 2 is a cross-sectional view taken along the line XX of FIG. 1, and an excimer lamp 2 is disposed in the casing 1. The excimer lamp 2 has a known shape. In this example, the excimer lamp 2 has a structure in which a pair of

external electrodes

2b and 2b are provided on the upper and lower surfaces of a flat rectangular discharge vessel 2a.
The top plate 3 of the casing 1 is formed with an opening 4 for emitting radiated light to the outside at a position facing the excimer lamp 2, and the irradiation block 5 is located in the opening 4. 1 is provided so as to be detachable.
The irradiation block 5 is made of an ultraviolet light transmissive material, for example, quartz glass. Constitutes the light emitting portion 5b.
The irradiation block 5 is placed on the excimer lamp 2 so as to be inserted into the opening 4.
In addition, although the irradiation block 5 shall be directly mounted in the excimer lamp 2, it is not restricted to this, The structure which detachably latches to the top plate 3 of the casing 1 may be sufficient.

The top plate 3 of the casing 1 is provided with a block cover 7 that can be opened and closed so as to cover the irradiation block 5 and the artificial tooth root 30. By this block cover 7, a processed product accommodation portion 8 is formed therein, and an artificial tooth root 30 as a processed product is accommodated therein.
As shown in FIG. 3, the block cover 7 is provided on the top plate 3 so as to be freely opened and closed by a hinge 9.
Further, as shown in FIG. 4 which is a YY sectional view of FIG. 2, the block cover 7 has a notch 7a and is set so as to cover the artificial tooth root 30 at the irradiation cleaning position. It is made so that it does not interfere with these.
In addition, although the block cover 7 showed what was rotatably provided by the hinge 9, it may be simply mounted on the top plate 3 from the top, and in that case, a step (not shown) An appropriate positioning means such as a portion may be provided.

The block cover 7 is preferably made of an ultraviolet light blocking material that blocks at least ultraviolet light from the excimer lamp 2, and is a material that transmits visible light. As such a specific material, for example, an acrylic resin, a cycloolefin copolymer resin, a cycloolefin polymer resin, a polycarbonate resin, or the like can be used.
Since the block cover 7 is ultraviolet light-blocking, it is possible to prevent a worker such as a doctor who is cleaning the artificial tooth from being irradiated with ultraviolet light, and because it is visible-light transmissive, an excimer lamp The lighting / non-lighting of can be visually confirmed.

As shown in FIG. 2, a lamp housing portion 11 for housing the excimer lamp 2 is partitioned and formed in the housing 1 by a partition wall 10. An exhaust pipe 12 is connected to the lamp housing portion 11 to exhaust the inside of the lamp housing portion 11.
An ozone filter 13 is inserted into the exhaust pipe 12.
Thereby, ozone generated by the ultraviolet light from the excimer lamp 2 in the lamp housing portion 11 is sucked through the exhaust pipe 12 without being emitted to the surroundings, and the ozone is decomposed by the ozone filter 13 to generate ozone. It is exhausted outside without containing.

As shown in FIG. 2 and particularly FIG. 3, a communication port 18 is provided in the top plate 3 of the casing 1, and the processing object storage unit 8 and the lamp storage unit 11 communicate with each other through the communication port 18. Has been.
As a result, the suction action through the exhaust pipe 12 extends from the lamp housing portion 11 through the communication port 18 to the processed material storage portion 8, and ozone generated in the processed material storage portion 8 is also connected to the communication port 18. The ozone is decomposed by the ozone filter 13 and exhausted to the outside.
Instead of the communication port 18 formed in the top plate 3, a gap S between the emission opening 4 of the top plate 3 and the irradiation block 5 may be used as the communication port.
Reference numeral 14 denotes a power source for the excimer lamp 2.

Referring to FIGS. 1 and 4, a positioning member 15 of an artificial tooth root 30 is detachably provided in the vicinity of the irradiation block 5 on the top plate 3 of the casing 1, and the artificial tooth root 30 is provided on the positioning member 15. When the tip 31 a of the electric drill 31 with the position of is mounted, the artificial tooth root 30 is positioned at a predetermined position above the irradiation block 5.
More specifically, the mounting tables 16 and 17 for the drill 31 on which the artificial tooth root 30 is similarly mounted on the top plate 3 are detachably provided, and the drill 31 is mounted on the mounting tables 16 and 17. When the distal end portion 31 a is set on the positioning member 15, the artificial tooth root 30 is positioned with respect to the irradiation block 5.

The artificial tooth contaminant removal operation (cleaning operation) using the above-described artificial tooth organic contaminant removal apparatus will be described as follows.
Prior to the cleaning process, the irradiation block 5, the positioning member 15, and the mounting tables 16 and 17 are removed from the casing 1, and sterilized by heating or the like in advance. The sterilized irradiation block 5 is inserted into the opening 4 of the casing 1 and placed on the excimer lamp 2, and the positioning member 15 and the placement tables 16 and 17 are attached on the top plate 3.
Next, when the drill 31 to which the artificial dental root 30 to be cleaned is mounted is placed on the mounting tables 16 and 17 and the distal end portion 31 a is set on the positioning member 15, the artificial dental root 30 is set on the irradiation block 5. Is done.
Thereafter, the block cover 7 is closed to surround the artificial tooth root 30 so as to be accommodated in the treatment object accommodating portion 8.

Next, when a fan (not shown) is operated, the gas in the lamp housing portion 11 is exhausted to the outside through the exhaust pipe 12. At this time, a negative pressure is also generated in the processing object accommodating portion 8 in the block cover 7 communicated through the communication port 18, and the gas is sucked and exhausted.
Thereafter, when the excimer lamp 2 is turned on by the power source 14, ultraviolet light having a peak wavelength of, for example, 172 nm is emitted from the excimer lamp 2.
The ultraviolet light is incident on the irradiation block 5 from the light incident part 5a, passes through the light, is emitted from the light emitting part 5b, and is irradiated onto the upper artificial tooth root 30. At this time, if the artificial tooth root 30 is rotated at a very low speed by the drill 31, the entire circumference thereof is uniformly irradiated with ultraviolet light and cleaned uniformly.

During the cleaning described above, ozone is generated in the lamp storage unit 11 and the processed product storage unit 8 by ultraviolet light, but these are sucked through the exhaust pipe 12 by a fan (not shown) and decomposed by the ozone filter 13. Therefore, it is exhausted outside without containing ozone.
Further, since the ultraviolet light blocking material of the block cover 7 is made of a visible light transmitting material, visible light from the excimer lamp 2 is emitted to the outside through the block cover 7, so that the lighting state of the excimer lamp 2 is visually observed. Can be confirmed.

After the cleaning of the artificial tooth root 30 is finished, the power supply from the power source 14 is finished, the excimer lamp 2 is turned off, the block cover 7 is opened, and the artificial tooth root 30 is taken out.
When a new artificial dental root is cleaned for treatment on another patient after the cleaned artificial dental root is taken out, at least the irradiation block 5 that approaches or contacts the artificial dental root must be sterilized.
At this time, since the irradiation block 5 is detachable from the casing 1, it is easy to attach and detach for sterilization work. Furthermore, when the structure is placed on the excimer lamp 2, the irradiation block 5 is more detachable. It becomes easier. Further, the positions of the excimer lamp 2 and the irradiation block 5 are very close to each other, and the attenuation of the ultraviolet light due to the air (oxygen) therebetween hardly occurs.

In the above embodiment, the excimer lamp 2 is a flat rectangular discharge vessel, but is not limited thereto, and may be a cylindrical discharge vessel, and this example is shown in FIG.
An external electrode 2c is provided on the outer periphery of the cylindrical discharge vessel 2a, and an internal electrode 2d is disposed therein.
The light incident part 5a of the irradiation block 5 is recessed on an arc so as to follow the shape of the discharge vessel 2a. The excimer lamp 2 is disposed in the recessed light incident part 5a, and the ultraviolet light from the lamp 2 is emitted. Is irradiated to the artificial tooth root 30 from the upper light emitting portion 5b.

Further, as shown in FIG. 6A, the irradiation block 5 is coated with an ultraviolet light blocking material 20 on the outer surface 5c other than the light incident portion 5a and the light emitting portion 5b of the irradiation block 5. . Thereby, since the ultraviolet light from the excimer lamp 2 is emitted only from the light emitting part 5b, an effective cleaning effect is brought about, and since it is not emitted to other undesired locations, the worker is irradiated with ultraviolet light. It never happens.
Furthermore, you may use the material which gave the ultraviolet light reflection function to this ultraviolet light shielding material 20, and it can irradiate the artificial tooth root effectively with the ultraviolet light reflected by the ultraviolet light shielding material, The ultraviolet light from the excimer lamp can be used efficiently.
Such an ultraviolet light blocking material 20 can be composed of, for example, a 99.99% aluminum vapor deposition film, and the film thickness in this case is 100 to 150 μm.

Moreover, the light emission part 5b of the said irradiation block 5 can employ | adopt various shapes other than the planar shape shown to FIG. 6 (A).
In the embodiment shown in FIG. 6B and below, the light emitting portion 5b is constituted by a space 6 formed in the irradiation block 5, and in these cases, the interior of the space 6 is cleaned. The target artificial tooth root 30 is inserted and arranged.
In FIG. 6B, a recess 6a is formed on the outer surface of the irradiation block 5, and the recess 6 is used as a light emitting portion 5b. In this case, the ultraviolet light blocking material 20 is coated on the outer surface 5c excluding the concave portion 6a (light emitting portion 5b) and the light incident portion 5a. At the time of cleaning, the artificial tooth root 30 is inserted into the recess 6a and irradiated with ultraviolet light from the periphery thereof.

Moreover, the said recessed part 6a may be formed over the full length of the irradiation block 5, and as shown in FIG.6 (C), the form currently formed in the middle of the length direction may be sufficient as the recessed part 6a. As long as the artificial tooth root 30 can be accommodated in the length direction.
Furthermore, as shown in FIG. 6 (D), the recess 6a constituting the light emitting portion 5b is not limited to the upper surface of the irradiation block 5, but may be formed on the side surface.

Moreover, as shown to FIG.6 (E), the hollow hole 6b may be drilled in the irradiation block 5, and this hollow hole 6b may comprise the light-projection part 5b. In this case, the ultraviolet light blocking material 20 is coated on the entire outer surface 5c except the light incident part 5a of the irradiation block 5.
Moreover, when forming the hollow hole 6b in the irradiation block 5, as shown to FIG.6 (F), it is good also considering the irradiation block 5 as a 2 division | segmentation structure by the cutting line which passes through the hollow hole 6b. Compared to the integrated irradiation block shown in FIG. 6 (E), the work of inserting and placing the artificial root 30 into the hollow hole 6b is facilitated.

According to these embodiments, the artificial tooth root 30 is inserted and disposed in the void 6 (recess 6a, hollow hole 6b) at the time of cleaning, so that an effective cleaning process is performed by irradiating ultraviolet light from the entire periphery. .
The artificial tooth root 30 is described as being positioned in the space 6 (light emitting portion 5b) of the irradiation block 5 while being mounted on the drill 31, but it is not necessarily processed in a state where it is mounted on the drill 31. It is not limited, and it may be placed directly on the irradiation block 5 for processing. However, in this case, as a matter of course, the irradiation block 5 needs to be sterilized for each treatment patient.

Further, in the embodiment shown in FIG. 6, the concave portion 6a or the hollow hole 6b constituting the light emitting portion 5b of the irradiation block 5 is formed in the horizontal direction, and the artificial tooth root 30 is disposed horizontally in the inside. However, the concave portion 6a and the hollow hole 6b may be formed in the vertical direction, and the artificial tooth root 30 may be vertically inserted in the depth direction.

By the way, when it is set as the structure which mounts the irradiation block 5 directly on the excimer lamp 2, when the external electrode is comprised by vapor-depositing a conductor, the vapor deposition electrode may be damaged, Since both the irradiation block 5 and the excimer lamp 2 are made of, for example, quartz glass or a ceramic material, they may be damaged each other when they come into contact with each other, often resulting in damage.
In order to prevent this, in the example shown in FIGS. 7 and 8, a cushion material is interposed between the two.
7 and 8, external electrodes 2b are formed on the outer surface of the discharge vessel 2a of the excimer lamp 2, and wires 21 are wound as cushioning materials at a plurality of locations in the longitudinal direction of the outer periphery thereof. The wire 21 is made of, for example, stainless steel from the viewpoint of ultraviolet light resistance.
Thereby, since the irradiation block 5 is mounted on the excimer lamp 2 via the wire (cushion material) 21, it is avoided that quartz glass and ceramics contact | abut directly, and the damage can be prevented.
Further, when the external electrode 2b is not a vapor deposition structure but a wire net structure, the external electrode 2b can be used as a cushion material.
Further, FIG. 9 shows a case where the discharge vessel 2a of the excimer lamp 2 has a cylindrical shape, an external electrode 2c is formed on the outer surface thereof, and an internal electrode 2d is arranged in the discharge vessel 2a. And the wire 21 as a cushioning material is wound around the outer periphery of the discharge vessel 2a.

As described above, in the organic dental contaminant removal device for an artificial tooth root according to the present invention, the light incident opening facing the excimer lamp and the artificial tooth root are opposed to the light emitting opening of the casing housing the excimer lamp. An irradiation block made of an ultraviolet light transmissive material with a light emitting part is detachably attached, so that the artificial tooth root can be irradiated efficiently with ultraviolet light from an excimer lamp, effectively adhering organic contaminants. It can be removed. Moreover, since the irradiation block is detachable, it can be easily sterilized by removing it from the casing.
As described above, the present invention does not irradiate an operator such as a dentist with ultraviolet light, and is not exposed to generated ozone. This is a functional organic contaminant removal device that can achieve cleaning with ultraviolet light.

DESCRIPTION OF SYMBOLS 1 Casing 2 Excimer lamp

2a Discharge vessel

2b, 2c External electrode 2d Internal electrode 3 Top plate 4 Opening part 5 Irradiation block 5a Light incident part 5b Light emitting part 6 Space (light emitting part)
6a Concave part (light emitting part)
6b Hollow hole (light emitting part)
7 Block cover 8 Processed object accommodating part 10 Partition wall 11 Lamp accommodating part 12 Exhaust pipe 13 Ozone filter 15 Artificial

root positioning member

16, 17 Drill mounting base 18 Communication port S Gap 20 Ultraviolet light blocking material 21 Cushion material (wire)
30 Artificial tooth root 31 Electric drill

Claims

In organic pollutant removal equipment for artificial tooth roots using an excimer lamp that emits ultraviolet light,
An opening for emitting the emitted light to the outside is formed in the casing in which the excimer lamp is housed,
An artificial tooth root comprising an irradiation block made of an ultraviolet light transmissive material that is detachably attached to the opening and has a light incident part facing the excimer lamp and a light emitting part facing the artificial tooth root. Organic contaminant removal equipment.
2. The artificial dental root organic contaminant removing device according to claim 1, wherein the light emitting portion is formed by a void formed in the irradiation block.
3. The artificial dental root organic contaminant removing device according to claim 2, wherein the void is a recess opened on an outer surface of the irradiation block.
The organic contaminant removal apparatus for artificial tooth roots according to claim 2, wherein the void is a hollow hole formed in the irradiation block.
2. The organic contaminant removal device for an artificial tooth root according to claim 1, wherein an ultraviolet light blocking material is coated on an outer surface of the irradiation block other than the light incident portion and the light emitting portion.
6. The artificial dental root organic contaminant removing device according to claim 5, wherein the ultraviolet light blocking material has an ultraviolet light reflecting function.
The organic dental contaminant removal device for an artificial tooth root according to claim 1, wherein the irradiation block is placed on the excimer lamp.
8. The artificial dental root organic contaminant removing device according to claim 7, wherein a cushioning material is interposed between the irradiation block and the excimer lamp.
The organic contaminant removal apparatus for artificial tooth roots according to claim 8, wherein the cushion material is an electrode provided on an outer surface of a discharge vessel of the excimer lamp.
2. The artificial dental root organic contaminant removing device according to claim 1, wherein the casing is provided with an openable / closable block cover made of an ultraviolet light blocking material covering the irradiation block.
The organic contaminant removal device for artificial tooth roots according to claim 10, wherein the ultraviolet light blocking material of the block cover is a material that transmits visible light from an excimer lamp.
The artificial dental root organic contaminant removing device according to claim 1, wherein a positioning member for the artificial tooth root is provided in the vicinity of the irradiation block on the top plate of the casing.
13. The artificial dental root organic contaminant removing device according to claim 12, wherein the positioning member is detachable from the casing.
A lamp accommodating portion for accommodating an excimer lamp is partitioned in the casing,
2. The artificial dental root organic contaminant removing device according to claim 1, wherein an exhaust pipe is connected to the lamp housing portion.
The organic dental contaminant removal device for artificial tooth roots according to claim 14, wherein an ozone filter is provided in the exhaust pipe.
The casing is provided with an openable and closable block cover made of an ultraviolet light blocking material that covers the irradiation block, and a processing object storage portion is formed by the block cover,
The organic contaminant removal apparatus for artificial tooth roots according to claim 14 or 15, wherein the treated object accommodating part communicates with the lamp accommodating part.