JP2001346891A - Medical laser apparatus - Google Patents
Medical laser apparatusInfo
- Publication number
- JP2001346891A JP2001346891A JP2000019595A JP2000019595A JP2001346891A JP 2001346891 A JP2001346891 A JP 2001346891A JP 2000019595 A JP2000019595 A JP 2000019595A JP 2000019595 A JP2000019595 A JP 2000019595A JP 2001346891 A JP2001346891 A JP 2001346891A
- Authority
- JP
- Japan
- Prior art keywords
- laser light
- laser
- tube member
- light guide
- light conducting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000007921 spray Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 210000004262 dental pulp cavity Anatomy 0.000 abstract description 20
- 238000005530 etching Methods 0.000 abstract description 5
- 230000001678 irradiating effect Effects 0.000 abstract description 5
- 239000013307 optical fiber Substances 0.000 abstract description 2
- 230000000249 desinfective effect Effects 0.000 abstract 1
- 230000037431 insertion Effects 0.000 abstract 1
- 238000003780 insertion Methods 0.000 abstract 1
- 230000000644 propagated effect Effects 0.000 abstract 1
- 210000001519 tissue Anatomy 0.000 description 15
- 238000011109 contamination Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 230000001954 sterilising effect Effects 0.000 description 3
- 208000002599 Smear Layer Diseases 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 210000004872 soft tissue Anatomy 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 210000004268 dentin Anatomy 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000013532 laser treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
Landscapes
- Laser Surgery Devices (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Radiation-Therapy Devices (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、医療用レーザ装
置、より詳細には、例えば、歯牙の根管内でのレーザ照
射を行う時、根管内に確実に挿入ができ、歯牙の硬組織
をエッチング及び殺菌・スメア層の除去等ができる全側
面照射型の医療用レーザ装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a medical laser device, and more particularly, to a laser irradiation in a root canal of a tooth, which can be reliably inserted into the root canal and hard tissue of the tooth. The present invention relates to an all-side irradiation type medical laser device capable of etching, sterilizing, removing a smear layer, and the like.
【０００２】[0002]
【従来の技術】外科医療においては、生体の硬組織の窩
洞形成等を行ったり、軟組織の切開等を行ったりするの
に、レーザ光を使用するが、従来のレーザ装置は、レー
ザ導光部材の先端からレーザ光を直接被治療部位に向け
て放射するもの、或いは、レーザ導光部材の先端から放
射されたレーザ光を反射部材或いは屈折プリズム或いは
レンズ等を用いて所望の方向に向けて放射するもので、
レーザ光照射範囲が特定の狭い範囲に限られていた。2. Description of the Related Art In surgical treatment, a laser beam is used to form a cavity in a hard tissue of a living body or to make an incision in a soft tissue or the like. Laser light emitted directly from the tip of the laser beam toward the treatment site, or laser light emitted from the tip of the laser light guide member is directed in a desired direction using a reflecting member, a refracting prism or a lens. To do
The laser beam irradiation range was limited to a specific narrow range.
【０００３】[0003]
【発明が解決しようとする課題】しかし、例えば、歯牙
の根管内で、該歯牙の根管内表面の硬組織にレーザ光を
照射して該硬組織をエッチング、殺菌等を行う場合、従
来のレーザ治療装置では、歯牙の上側から根管内にレー
ザ光を照射しなければならず、どうしても、影の部分が
できてしまい、満足のいくようなエッチング等ができな
かった。また、レーザ放射端を根管内に挿入できるもの
であっても、レーザ光の放射方向が根管軸方向であり、
根管内表面を該内表面に対して直角の方向からレーザ光
を照射することができず、やはり、満足のいくようなエ
ッチングを行うことはできず、また、象牙質内の細孔内
の殺菌を行うことはできなかった。更に、レーザ光放射
方向をレーザ導光部材の軸方向に対して直角方向に曲げ
ることによって、レーザ光の照射方向を根管内表面に対
して直角方向とすることも考えられるが、従来のレーザ
治療装置においては、前述のように、径方向のある一部
にしかレーザ光を照射することができず、根管内表面全
周にわたって同時にレーザ光を照射することはできなか
った。However, for example, in a case where a hard tissue on the inner surface of a root canal of a tooth is irradiated with a laser beam to etch or sterilize the hard tissue in a root canal of the tooth, In the laser treatment apparatus described above, laser light had to be applied to the inside of the root canal from above the teeth, and shadows were inevitably formed, and satisfactory etching and the like could not be performed. Also, even if the laser emitting end can be inserted into the root canal, the direction of laser light emission is the root canal axial direction,
The inner surface of the root canal cannot be irradiated with a laser beam from a direction perpendicular to the inner surface, so that satisfactory etching cannot be performed, and the pores in the dentin cannot be etched. No sterilization could be performed. Furthermore, it is conceivable that the irradiation direction of the laser light may be perpendicular to the inner surface of the root canal by bending the laser light emitting direction at right angles to the axial direction of the laser light guide member. In the treatment apparatus, as described above, the laser beam can be irradiated only to a certain part in the radial direction, and the laser beam cannot be simultaneously irradiated over the entire inner surface of the root canal.
【０００４】本発明は、上述のごとき実情に鑑みてなさ
れたもので、例えば、歯牙の根管内でレーザ照射を行う
時などにおいて、根管内表面の全周にわたって該内表面
に対して直角の方向から同時にかつ均等にレーザ光を照
射することのできる医療用レーザ装置を提供すること、
更には、レーザ放射プローブの先端部の過熱を防止する
こと、更には、レーザ光が照射される被治療組織を冷却
すること、更には、被治療組織の飛散によるレーザ光放
射部の汚れを防止すること等を目的としてなされたもの
である。The present invention has been made in view of the above-described circumstances, and for example, when performing laser irradiation in the root canal of a tooth, the right angle to the inner surface of the root canal is obtained over the entire circumference of the inner surface of the root canal. Providing a medical laser device capable of simultaneously and evenly irradiating laser light from the direction of
Furthermore, it is possible to prevent overheating of the tip of the laser radiation probe, to further cool the tissue to be treated irradiated with laser light, and to further prevent contamination of the laser light emitting part due to scattering of the tissue to be treated. It is done for the purpose of doing.
【０００５】[0005]
【課題を解決するための手段】請求項１の発明は、レー
ザ導光部材と、該レーザ導光部材先端のレーザ放射端に
対向して配設されたレーザ反射部材を有し、該レーザ反
射部材は前記レーザ導光部材先端から放射されたレーザ
光を該レーザ導光部材の径方向に反射するものであるこ
とを特徴としたものである。According to a first aspect of the present invention, there is provided a laser light guiding member, and a laser reflecting member disposed opposite to a laser radiation end of the laser light guiding member. The member reflects the laser light emitted from the tip of the laser light guide member in the radial direction of the laser light guide member.
【０００６】請求項２の発明は、請求項１の発明におい
て、前記レーザ反射部材は、頂点が前記レーザ導光部材
の先端に対向して配設された円錐状のミラーであること
を特徴としたものである。According to a second aspect of the present invention, in the first aspect of the present invention, the laser reflecting member is a conical mirror whose apex is disposed to face a tip of the laser light guiding member. It was done.
【０００７】請求項３の発明は、レーザ導光部材と、該
レーザ導光部材を所定の間隙をもって同軸に支持する第
１の管部材と、該第１の管部材の先端部に該第１の管部
材に対して同軸的に連接された透明体の第２の管部材
と、該第２の管部材の先端部に頂点を前記レーザ導光部
材の先端に対向して配設した円錐状の反射部材を一体的
に有することを特徴としたものである。According to a third aspect of the present invention, there is provided a laser light guide member, a first tube member coaxially supporting the laser light guide member with a predetermined gap, and a first tube member provided at a tip end of the first tube member. A second tube member of a transparent body coaxially connected to the tube member, and a conical shape in which a vertex is provided at the tip of the second tube member so as to face the tip of the laser light guide member. Characterized in that the reflection member is integrally provided.
【０００８】請求項４の発明は、請求項３の発明におい
て、前記反射部材は前記第１の管部材内を通して前記第
２の管部材内に冷却エアーが注入されることを特徴とし
たものである。According to a fourth aspect of the present invention, in the third aspect of the present invention, the reflection member is configured such that cooling air is injected into the second tube member through the first tube member. is there.
【０００９】請求項５の発明は、請求項３又は４の発明
において、前記第１の管部材の外側に第３の管部材を所
定の間隙をもって同軸的に第３の管部材を有し、該第３
の管部材の先端からスプレー及び／又はエアーを噴射す
るようにしたことを特徴としたものである。According to a fifth aspect of the present invention, in the third or fourth aspect, the third tube member is coaxially provided with a third tube member outside the first tube member with a predetermined gap. The third
And spraying and / or air from the tip of the tube member.
【００１０】[0010]
【発明の実施の形態】図１は、本発明による医療用レー
ザ装置の一実施例を説明するための要部断面図で、図１
に示した実施例は、歯牙の根管内に挿入して、根管内表
面の硬組織をエッチング、殺菌、スメア層の除去等を行
うことを目的としてなされたものであり、そのため、先
端部の径は、１００〜１５００μｍ程度であるが、本発
明は、必ずしも、根管内に挿入して使用しなければなら
ないものではない。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a sectional view of an essential part for explaining an embodiment of a medical laser device according to the present invention.
The example shown in was made for the purpose of inserting into the root canal of the tooth, etching the hard tissue on the inner surface of the root canal, sterilizing, removing the smear layer, etc. Has a diameter of about 100 to 1500 μm, but the present invention does not necessarily have to be used by inserting it into a root canal.
【００１１】図１において、１は図示しない端部からレ
ーザ光が導入されて伝搬されてくる、例えば、光ファイ
バー等のレーザ導光部材、２は該レーザ導光部材１に対
して所定の間隙をもって同軸的に配設された第１の管部
材、３は前記レーザ導光部材１の先端面１ａに対向して
配設された円錐状（円錐角θ≒５〜８０゜）の反射ミラ
ーで、該反射ミラー３は、図示のように、その頂点３ａ
がレーザ導光部材１の先端面１ａに対向して配設され、
該レーザ導光部材１の先端面１ａから放射されたレーザ
光が、該円錐状ミラー３の表面３ｂで反射されて、レー
ザ導光部材１の軸線に対して略直角の方向に曲げられ、
レーザ導光部材１の径方向全周にわたって均一にレーザ
光を照射する。In FIG. 1, reference numeral 1 denotes a laser light guide member, such as an optical fiber, for introducing and propagating a laser beam from an end (not shown). The first tube member 3 disposed coaxially is a conical (cone angle θ ≒ 5-80 °) reflecting mirror disposed opposite to the distal end surface 1 a of the laser light guide member 1. The reflecting mirror 3 has its vertex 3a as shown in the figure.
Are disposed facing the distal end surface 1a of the laser light guide member 1,
Laser light emitted from the tip end surface 1a of the laser light guide member 1 is reflected by the surface 3b of the conical mirror 3 and bent in a direction substantially perpendicular to the axis of the laser light guide member 1,
The laser light is irradiated uniformly over the entire circumference of the laser light guide member 1 in the radial direction.
【００１２】前記円錐状反射ミラー３は、サファイア等
のファイバーからなる透明体の第２の管部材４の先端部
に取り付けられており、該第２の管部材４は、前記第１
の管部材２に対して同軸的に連接され、該第１の管部材
２と第２の管部材４は連通している。The conical reflection mirror 3 is attached to the tip of a transparent second tube member 4 made of fiber such as sapphire, and the second tube member 4 is attached to the first tube member 4.
The first tube member 2 and the second tube member 4 are connected to each other coaxially.
【００１３】而して、本発明においては、レーザ導光部
材１から放射されたレーザ光を円錐状の反射ミラー３で
反射するものであり、反射ロスによる伝送ロスを少なく
するために、該反射ミラー３の表面をコーティングする
等の対策を施しているが、反射ロスを完全に防ぐことは
できず、反射ミラーが過熱する恐れがある。その場合に
は、第１の管部材２を通して第２の管部材３内にエアー
を吹き込み、反射ミラーを冷却するようにするとよい。
しかし、以下に説明するように、第３の管部材５を設
け、該第３の管部材５の先端からスプレー又はエアーを
放出するようにすると、前述のごとき、第１及び第２の
管部材内を通してのエアーの供給は、必ずしも、必要と
しない。In the present invention, the laser light emitted from the laser light guide member 1 is reflected by the conical reflecting mirror 3. In order to reduce the transmission loss due to the reflection loss, the laser light is reflected. Although measures such as coating the surface of the mirror 3 are taken, reflection loss cannot be completely prevented, and the reflection mirror may be overheated. In that case, air may be blown into the second tube member 3 through the first tube member 2 to cool the reflection mirror.
However, as described below, when the third tube member 5 is provided and the spray or air is discharged from the tip of the third tube member 5, the first and second tube members are as described above. Supply of air through the interior is not necessarily required.
【００１４】図１において、５は前述の第３の管部材
で、該第３の管部材５の先端部５ａは、例えば、放射状
のスリット或いは丸孔等に開口されており、生体組織に
レーザ光を照射するに当たって、該開口５ａを通して、
生体組織に冷却水を注入（スプレー）し、或いは、生体
組織にレーザ光を照射した時に、該生体組織からはね返
ってくる生体組織が反射ミラー３に付着するのを防止す
るために、汚れ防止用のエアーを吹き付けて反射ミラー
を保護するが、この時、吹き付ける汚れ防止エアーによ
って同時に反射ミラー３が冷却される。ただし、図示実
施例においては、生体の硬組織や軟組織にレーザ光を照
射した時にはね返ってくる組織が反射ミラー３に付着す
るのを防止するために、第２の管部材（保護カバー：レ
ーザ光をよく透過する素材、例えば、Ａｌ2Ｏ3等）４で
囲い、該第２の管部材４に第３の管部材５から放出され
るスプレーやエアーを吹き付けるようにしてもよい。In FIG. 1, reference numeral 5 denotes the above-mentioned third tube member, and a distal end portion 5a of the third tube member 5 is opened, for example, in a radial slit or a round hole, so that a laser beam is applied to a living tissue. In irradiating light, through the opening 5a,
When injecting (spraying) cooling water into the living tissue or irradiating the living tissue with a laser beam, the living tissue rebounding from the living tissue is prevented from adhering to the reflection mirror 3 to prevent contamination. Is blown to protect the reflection mirror. At this time, the reflection mirror 3 is simultaneously cooled by the blown dirt preventing air. However, in the illustrated embodiment, the second tube member (protective cover: laser light) is used to prevent the tissue that rebounds when the hard or soft tissue of the living body is irradiated with the laser light from attaching to the reflection mirror 3. May be surrounded by a material that transmits light well, such as Al 2 O 3 ) 4, and spray or air discharged from the third pipe member 5 may be blown onto the second pipe member 4.
【００１５】[0015]
【発明の効果】以上の説明から明らかなように、本発明
によると、例えば、歯牙の根管内でレーザ照射を行う時
などにおいて、根管内表面の全周にわたって該内表面に
対して直角の方向から同時にかつ均等にレーザ光を照射
することのできる医療用レーザ装置を提供し、更には、
レーザ放射プローブの先端部の過熱を防止することがで
き、更には、レーザ光が照射される被治療組織を冷却す
ることを、更には、被治療組織の飛散によるレーザ光放
射部の汚れを防止すること等ができる。As is apparent from the above description, according to the present invention, for example, when laser irradiation is performed in the root canal of a tooth, the inner surface of the root canal is perpendicular to the inner surface. To provide a medical laser device capable of simultaneously and evenly irradiating laser light from the direction of
It is possible to prevent overheating of the tip of the laser radiation probe, to further cool the tissue to be irradiated with the laser light, and to further prevent contamination of the laser light emitting part due to scattering of the tissue to be treated. And so on.
【図１】 本発明による医療用レーザ装置の一実施例を
説明するための要部概略断面図である。FIG. 1 is a schematic cross-sectional view of a main part for describing an embodiment of a medical laser device according to the present invention.
１…レーザ導光部材、２…第１の管部材、３…反射ミラ
ー、４…第２の管部材（保護カバー）、５…第３の管部
材。DESCRIPTION OF SYMBOLS 1 ... Laser light guide member, 2 ... 1st tube member, 3 ... Reflection mirror, 4 ... 2nd tube member (protection cover), 5 ... 3rd tube member.
フロントページの続き Ｆターム(参考） 4C026 AA02 AA04 DD02 DD06 FF17 FF34 FF39 4C052 AA16 BB11 4C082 RA07 RE17 RE35 RE40 RG02 RG06 Continued on the front page F term (reference) 4C026 AA02 AA04 DD02 DD06 FF17 FF34 FF39 4C052 AA16 BB11 4C082 RA07 RE17 RE35 RE40 RG02 RG06
Claims (5)
端のレーザ放射端に対向して配設されたレーザ反射部材
を有し、該レーザ反射部材は前記レーザ導光部材先端か
ら放射されたレーザ光を該レーザ導光部材の径方向に反
射するものであることを特徴とする医療用レーザ装置。1. A laser light guide member, and a laser reflection member disposed opposite to a laser emission end of the laser light guide member, wherein the laser reflection member is radiated from the laser light guide member. A medical laser device for reflecting the laser light in a radial direction of the laser light guide member.
ザ導光部材の先端に対向して配設された円錐状のミラー
であることを特徴とする請求項１に記載の医療用レーザ
装置。2. The medical laser device according to claim 1, wherein the laser reflecting member is a conical mirror whose apex is disposed to face a tip of the laser light guiding member.
所定の間隙をもって同軸に支持する第１の管部材と、該
第１の管部材の先端部に該第１の管部材に対して同軸的
に連接された透明体の第２の管部材と、該第２の管部材
の先端部に頂点を前記レーザ導光部材の先端に対向して
配設した円錐状の反射部材を一体的に有することを特徴
とする医療用レーザ装置。3. A laser light guide member, a first tube member coaxially supporting the laser light guide member with a predetermined gap, and a tip end of the first tube member with respect to the first tube member. And a second tube member of a transparent body coaxially connected to the second tube member, and a conical reflecting member having a vertex at the tip of the second tube member facing the tip of the laser light guide member. A medical laser device, comprising:
して前記第２の管部材内に冷却エアーが注入されること
を特徴とする請求項３に記載の医療用レーザ装置。4. The medical laser device according to claim 3, wherein cooling air is injected into the second pipe member through the first pipe member.
を所定の間隙をもって同軸的に第３の管部材を有し、該
第３の管部材の先端からスプレー及び／又はエアーを噴
射するようにしたことを特徴とする請求項３又は４に記
載の医療用レーザ装置。5. A third tube member is provided coaxially with a third tube member outside of the first tube member with a predetermined gap, and spray and / or air is supplied from a tip of the third tube member. 5. The medical laser device according to claim 3, wherein the laser beam is ejected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000019595A JP2001346891A (en) | 2000-01-28 | 2000-01-28 | Medical laser apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000019595A JP2001346891A (en) | 2000-01-28 | 2000-01-28 | Medical laser apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001346891A true JP2001346891A (en) | 2001-12-18 |
Family
ID=18546269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000019595A Pending JP2001346891A (en) | 2000-01-28 | 2000-01-28 | Medical laser apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001346891A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008073264A2 (en) * | 2006-12-07 | 2008-06-19 | Ams Research Corporation | Annular side fire optical device for laterally redirecting electromagnetic radiation |
| US8899844B2 (en) | 2008-12-01 | 2014-12-02 | Ams Research Corporation | Optical device |
| KR20160007328A (en) * | 2014-07-10 | 2016-01-20 | (주)디오텍 | Optical fiber for producing heat, and manufaturing for the same |
| JP2017500922A (en) * | 2013-11-27 | 2017-01-12 | コンバージェント デンタル， インコーポレイテッド | System and method for protection of optical systems of laser-based devices |
| WO2019077693A1 (en) * | 2017-10-18 | 2019-04-25 | Ｍｅｉｊｉ Ｓｅｉｋａファルマ株式会社 | Optical probe |
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2000
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008073264A2 (en) * | 2006-12-07 | 2008-06-19 | Ams Research Corporation | Annular side fire optical device for laterally redirecting electromagnetic radiation |
| WO2008073264A3 (en) * | 2006-12-07 | 2008-07-31 | Ams Res Corp | Annular side fire optical device for laterally redirecting electromagnetic radiation |
| US8073297B2 (en) | 2006-12-07 | 2011-12-06 | Ams Research Corporation | Side fire optical device for laterally redirecting high power electromagnetic energy |
| US8285097B2 (en) | 2006-12-07 | 2012-10-09 | Ams Research Corporation | Annular side fire optical device for laterally redirecting electromagnetic radiation |
| US8899844B2 (en) | 2008-12-01 | 2014-12-02 | Ams Research Corporation | Optical device |
| JP2017500922A (en) * | 2013-11-27 | 2017-01-12 | コンバージェント デンタル， インコーポレイテッド | System and method for protection of optical systems of laser-based devices |
| US10779908B2 (en) | 2013-11-27 | 2020-09-22 | Convergent Dental, Inc. | Systems and method for protection of optical system of laser-based apparatus |
| KR20160007328A (en) * | 2014-07-10 | 2016-01-20 | (주)디오텍 | Optical fiber for producing heat, and manufaturing for the same |
| KR101668241B1 (en) * | 2014-07-10 | 2016-10-21 | (주)디오텍 | Optical fiber for producing heat, and manufaturing for the same |
| WO2019077693A1 (en) * | 2017-10-18 | 2019-04-25 | Ｍｅｉｊｉ Ｓｅｉｋａファルマ株式会社 | Optical probe |
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