JP2000037400A - Front surface cooling method at the time of laser irradiation - Google Patents

Front surface cooling method at the time of laser irradiation

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Publication number
JP2000037400A
JP2000037400A JP22538398A JP22538398A JP2000037400A JP 2000037400 A JP2000037400 A JP 2000037400A JP 22538398 A JP22538398 A JP 22538398A JP 22538398 A JP22538398 A JP 22538398A JP 2000037400 A JP2000037400 A JP 2000037400A
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gas
liquid
laser
laser irradiation
irradiation
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Pending
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JP22538398A
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Japanese (ja)
Inventor
Michihiro Kaneda
道寛 金田
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Nippon Sekigaisen Kogyo Kk
日本赤外線工業株式会社
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Abstract

PROBLEM TO BE SOLVED: To obtain an efficient and easy front surface cooling method at the time of a laser irradiation. SOLUTION: In a method for destroying a specified subcutaneous tissue and medically treating it by the irradiation of a laser beam, a mist-state liquid is sprayed to an epidermis above the subcutaneous tissue and also gas is blown so that the vaporization of the liquid is promoted and the heat of the epidermis is taken away by the heat of vaporization. Then, the epidermis is cooled.

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【発明の属する技術分野】本発明は、レーザー照射時の表面冷却方法に関し、より具体的にはレーザー光の照射によって特定の皮下組織を破壊して治療を行うに際して表皮の冷却を効率的且つ簡便に行うようにしてなるレーザー照射時の表面冷却方法に関する。 The present invention relates to relates to a surface cooling method at the time of laser irradiation, efficient and convenient cooling of the epidermis during the treating and destroying specific subcutaneous tissue by the irradiation of the laser beam and more specifically It relates to a surface cooling method at the time of laser irradiation comprising as performed.

【0002】 [0002]

【従来の技術】レーザー光は医療分野において外科用メスや癌への応用などに適用されてきている。 BACKGROUND OF THE INVENTION laser light have been applied, such as for application to a surgical scalpel and cancer in the medical field. レーザー光の照射によって特定の皮下組織を破壊し治療を行う方法において、表皮の損傷を低減するため、表皮を冷却しながらレーザー照射を行う方法が開発されている。 A method of performing fracture treating specific subcutaneous tissue by the irradiation of laser light, in order to reduce damage of the epidermis, a method of performing laser irradiation while cooling the epidermis has been developed. 現在開発されている冷却方法には冷温ガスを直接吹き付ける方法と冷水により冷却された固体を皮膚に接触させて冷却する方法がある。 The cooling methods are currently developed a method for cooling a solid which is cooled by a method and cold blowing cold gas directly into contact with the skin. 冷却された固体は、レーザー光が透過できるようにガラス・石英等の光学材料で構成されている。 The cooled solid laser beam is composed of an optical material such as glass, quartz so as to be transparent.

【0003】ところが、冷温ガスを直接吹き付ける方法では、冷温ガスを生成させるための冷却装置が必要であるのに加え、冷温ガスの熱容量が小さいため、十分な冷却効果を得るためには多量の冷温ガスを吹き付ける必要がある。 [0003] However, in the method of blowing a cold gas directly, in addition to being required cooling device for generating cold gas, heat capacity of the hot and cold gas is small, in order to obtain a sufficient cooling effect of the large amount of cold it is necessary to blow the gas. また、冷水により冷却された固体を皮膚に接触させて冷却する方法では、別途冷水により固体を冷却するための機構が必要であるばかりか、レーザー光をガラスや石英等の光学材料に透過させる必要があるため、レーザー光にロスが生じる等の問題がある。 In the method of cooling the solids cooled by cold water in contact with the skin, it must be transmitted not only requires a mechanism for cooling the solid separately cold water, a laser beam to an optical material such as glass or quartz because there, there are problems such as loss in the laser light is generated.

【0004】 [0004]

【発明が解決しようとする課題】本発明は、レーザー光の照射によって特定の皮下組織を破壊し治療を行う方法における、上記のような欠点を解決するためになされたものであり、表皮表面に液体を噴霧してその気化熱により表皮の熱を奪い去ることにより、効率的で且つ簡便なレーザー照射時の表面冷却方法を提供することを目的とする。 [SUMMARY OF THE INVENTION The present invention, in a method of performing fracture treating specific subcutaneous tissue by the irradiation of the laser beam, it has been made to solve the drawbacks as described above, the skin surface by snatch epidermis heat by the heat of vaporization by spraying liquid, and an object thereof is to provide a surface cooling method at the time efficient and convenient laser irradiation.

【0005】 [0005]

【課題を解決するための手段】すなわち本発明は、レーザー光の照射によって特定の皮下組織を破壊し治療を行う方法において、該皮下組織上の表皮に霧状の液体を噴霧するとともに、ガスを吹き付けることにより、液体の気化を促進し、気化熱によって表皮の熱を奪い去ることにより表皮を冷却することを特徴とするレーザー照射時の表面冷却方法を提供する。 Means for Solving the Problems] The present invention provides a method of performing fracture treating specific subcutaneous tissue by the irradiation of the laser beam, with spraying the atomized liquid into the skin on The subcutaneous tissue, the gas by blowing, to promote vaporization of the liquid, providing a surface cooling method at the time of laser irradiation, characterized in that cooling the skin by deprive heat of the epidermis by heat of vaporization.

【0006】 [0006]

【発明の実施の形態】本発明においては、レーザー光を照射する必要のある表皮面に液体を霧状に噴霧するとともに、ガスを吹き付けることにより、該液体の気化を促進し、その気化熱によって表皮の熱を奪い去ることにより冷却する。 In DETAILED DESCRIPTION OF THE INVENTION The present invention, as well as spraying liquid in atomized skin surface that needs to be irradiated with a laser beam, by blowing gas to promote the vaporization of the liquid, by the heat of vaporization cooled by deprive heat of the epidermis. 使用液体としては、ガスを吹き付けることにより気化する液体であれば特に限定はないが、好ましくは水又は水とアルコールとの混合液が用いられる。 The used liquid is not particularly limited as long as liquid is vaporized by blowing gas, preferably a mixture of water or water and alcohol is used. また、吹き付け用のガスとしては空気や窒素ガス等適宜のガスが使用される。 The gas as air, nitrogen gas or the like suitable gas for spraying is used.

【0007】液体の噴霧装置とガスの吹き付け装置(ガスジェット、ガスジェットノズル)はレーザー出射部に一体化して配置するのが好ましい。 [0007] Spray devices and gas blowing device of the liquid (gas jet, gas jet nozzle) is preferably arranged integral to the laser emitting portion. レーザ光は凸レンズを通して集光され生体中破壊が必要な皮下組織すなわち熱損傷部に照射されるが、液体噴霧装置とガスジェットはレーザー出射部を囲って配置するのが望ましい。 The laser beam is irradiated into the subcutaneous tissue or heat damaged portion required in vivo destruction is condensed through the convex lens, the liquid spray device and the gas jet is preferably disposed surrounding the laser emitting portion.

【0008】この場合、ガスは圧縮状態(加圧状態)で供給される必要があるが、圧縮ガスは例えば高圧ガスボンベからのガスを用いることで供給することができる。 [0008] In this case, the gas it is necessary to be supplied in a compressed state (pressurized state), the compressed gas can be supplied by using the gas from the high pressure gas cylinder, for example.
また液体はタンクから導管を通して噴霧装置に供給するが、圧縮ガスによるガスジェットの吸引作用により供給することができる。 The liquid can be supplied to the spraying device through the conduit from the tank, to supply the suction effect of the gas jets by the compressed gas. すなわちその操作時に1種のエジェクター作用を利用する。 That is to use one of the ejector effect at the time of the operation. その際、液体供給用のポンプを併用して供給してもよいことは勿論である。 In that case, it is obvious that the pump for the liquid supply may be supplied in combination.

【0009】図1は本発明で使用し得る装置態様例の概略図である。 [0009] Figure 1 is a schematic diagram of an apparatus embodiment examples which may be used in the present invention. 図示のとおり、レーザー光は凸レンズで集光され、生体中の患部等、すなわち損傷することが必要な皮下組織部分(熱損傷部)に照射される。 As shown, the laser beam is condensed by the convex lens, and is irradiated to the affected part in a living body such, that damage to it is required the subcutaneous tissue portion (heat damage portion). レンズを経た後表皮に至るまでがレーザー出射部に相当するが、該出射部を順次円筒状に囲んで、ガス供給円管及び液体供給円管が形成されている。 Up to the skin after a lens corresponds to the laser emitting unit, but surrounds the said exit portion successively cylindrical, gas supply circular tube and the liquid supply circular tube is formed. 液体供給円管を内側に、ガス供給円管を外側に配置してもよい。 A liquid supply circular tube inside may be arranged gas supply circular tube on the outside.

【0010】高圧ガスボンベ中のガスは導管、弁を介して出射部を囲むガス用円管に供給され、その下端部から噴射される。 [0010] Gas in the high-pressure gas cylinder conduit, is supplied to the circular tube gas surrounding the emitting portion via the valve, it is injected from the lower end. その際、液体タンク中の液体、例えば水は圧縮噴射ガスの吸引作用により液体導管を経て吸引されて、ガス用円管を囲む液体用円管に導入され、噴射部から噴霧される。 At that time, the liquid in the liquid tank, for example water is sucked through the liquid conduit by suction action of the compression injection gas is introduced into the circular pipe for liquid surrounding the gas circular tube is sprayed from the injection unit. ガス供給部及び液体供給部の先端によって噴霧部すなわちノズルが形成され、レーザー照射時、 Spray unit or nozzle is formed by the tip of the gas supply portion and the liquid supply portion, during laser irradiation,
またはその直前に霧状の液体を表皮に噴霧するとともに、ガスを吹き付ける。 Or atomized liquid while spraying the skin immediately before, blowing a gas. これにより、液体の気化を促進し、気化熱として表皮の熱を奪い去ることができる。 This promotes the vaporization of the liquid, it is possible to take away the skin of the heat as heat of vaporization.

【0011】表皮は予め冷却しておくのが望ましい。 [0011] The epidermis is desirable in advance cooling. このため霧状の液体の噴霧とガスを吹き付け時期は、レーザー照射直前であるのがよいが、このため液体噴霧装置とガスジェット(ガスジェットノズル)をレーザーの照射と連動・同期するようにし、レーザー照射の直前に液体噴霧装置からの液体噴霧とガスジェットからのガス吹き付けをレーザー照射の直前に行うようにするのが望ましい。 Therefore time spraying atomized spray and the gas liquid, but may be between immediately before laser irradiation, and this for liquid spraying apparatus and a gas jet (gas jet nozzle) so as to interlock and synchronization with the irradiation of the laser, it is desirable to blowing gas from the liquid spray and the gas jets from the liquid spraying device immediately prior to laser irradiation to perform immediately before the laser irradiation.

【0012】 [0012]

【発明の効果】本発明によれば、レーザー光の照射によって特定の皮下組織を破壊し治療を行う方法において、 According to the present invention, a method of performing fracture treating specific subcutaneous tissue by the irradiation of the laser beam,
霧状の液体を表皮に噴霧するとともに、ガスを吹き付けることにより、液体の気化を促進し、その気化熱によって表皮の熱を奪い去ることにより表皮を効果的且つ簡便に冷却することができる。 The atomized liquid while spraying the epidermis, by blowing gas to promote the vaporization of the liquid, can be effectively and conveniently cooled epidermis by deprive heat of the epidermis by the heat of vaporization.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明で使用し得る装置態様例の概略図。 1 is a schematic diagram of an apparatus embodiment examples which may be used in the present invention.

Claims (4)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】レーザー光の照射によって特定の皮下組織を破壊し治療を行う方法において、該皮下組織上の表皮に霧状の液体を噴霧するとともに、ガスを吹き付けることにより、液体の気化を促進し、気化熱によって表皮の熱を奪い去ることにより表皮を冷却することを特徴とするレーザー照射時の表面冷却方法。 1. A method of performing fracture treating specific subcutaneous tissue by the irradiation of the laser beam, with spraying the atomized liquid into the skin on The subcutaneous tissue, by blowing gas, promoting the vaporization of the liquid and, surface cooling method at the time of laser irradiation, characterized in that cooling the skin by deprive heat of the epidermis by heat of vaporization.
  2. 【請求項2】上記液体が水又は水とアルコールの混合液であり、上記ガスが圧縮された空気又は窒素ガスである請求項1記載のレーザー照射時の表面冷却方法。 Wherein said liquid is a mixture of water or water and alcohol, surface cooling method during laser irradiation according to claim 1, wherein said gas is air or nitrogen gas compression.
  3. 【請求項3】上記霧状液体の噴霧とガスの吹き付けを、 The 3. A spray of the spray and the gas of the atomized liquid,
    レーザー射出部に液体噴霧装置とガスジェットを設置することにより行うことを特徴とする請求項1記載のレーザー照射時の表面冷却方法。 Surface cooling method at the time the laser irradiation according to claim 1, characterized in that by placing the liquid spray device and a gas jet to the laser emitting portion.
  4. 【請求項4】上記液体噴霧装置とガスジェットをレーザーの照射と同期するようにし、レーザー照射の直前に表皮の冷却を行うことを特徴とする請求項1記載のレーザー照射時の表面冷却方法。 Wherein said liquid spray device and the gas jet so as to synchronize with the irradiation of the laser, the surface cooling method during laser irradiation according to claim 1, characterized in that the cooling of the epidermis immediately prior to laser irradiation.
JP22538398A 1998-07-23 1998-07-23 Front surface cooling method at the time of laser irradiation Pending JP2000037400A (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7758621B2 (en) 1997-05-15 2010-07-20 Palomar Medical Technologies, Inc. Method and apparatus for therapeutic EMR treatment on the skin
US7763016B2 (en) 1997-05-15 2010-07-27 Palomar Medical Technologies, Inc. Light energy delivery head
US7942916B2 (en) 2002-05-23 2011-05-17 Palomar Medical Technologies, Inc. Phototreatment device for use with coolants and topical substances
US8182473B2 (en) 1999-01-08 2012-05-22 Palomar Medical Technologies Cooling system for a photocosmetic device
US8328794B2 (en) 1996-12-02 2012-12-11 Palomar Medical Technologies, Inc. System for electromagnetic radiation dermatology and head for use therewith
US8346347B2 (en) 2005-09-15 2013-01-01 Palomar Medical Technologies, Inc. Skin optical characterization device
US8915948B2 (en) 2002-06-19 2014-12-23 Palomar Medical Technologies, Llc Method and apparatus for photothermal treatment of tissue at depth
US9028536B2 (en) 2006-08-02 2015-05-12 Cynosure, Inc. Picosecond laser apparatus and methods for its operation and use
US9780518B2 (en) 2012-04-18 2017-10-03 Cynosure, Inc. Picosecond laser apparatus and methods for treating target tissues with same
US9919168B2 (en) 2009-07-23 2018-03-20 Palomar Medical Technologies, Inc. Method for improvement of cellulite appearance

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8328794B2 (en) 1996-12-02 2012-12-11 Palomar Medical Technologies, Inc. System for electromagnetic radiation dermatology and head for use therewith
US8109924B2 (en) 1997-05-15 2012-02-07 Palomar Medical Technologies, Inc. Heads for dermatology treatment
US7763016B2 (en) 1997-05-15 2010-07-27 Palomar Medical Technologies, Inc. Light energy delivery head
US7935107B2 (en) 1997-05-15 2011-05-03 Palomar Medical Technologies, Inc. Heads for dermatology treatment
US7758621B2 (en) 1997-05-15 2010-07-20 Palomar Medical Technologies, Inc. Method and apparatus for therapeutic EMR treatment on the skin
US8002768B1 (en) 1997-05-15 2011-08-23 Palomar Medical Technologies, Inc. Light energy delivery head
US8182473B2 (en) 1999-01-08 2012-05-22 Palomar Medical Technologies Cooling system for a photocosmetic device
US7942915B2 (en) 2002-05-23 2011-05-17 Palomar Medical Technologies, Inc. Phototreatment device for use with coolants
US7942916B2 (en) 2002-05-23 2011-05-17 Palomar Medical Technologies, Inc. Phototreatment device for use with coolants and topical substances
US8915948B2 (en) 2002-06-19 2014-12-23 Palomar Medical Technologies, Llc Method and apparatus for photothermal treatment of tissue at depth
US8346347B2 (en) 2005-09-15 2013-01-01 Palomar Medical Technologies, Inc. Skin optical characterization device
US9028536B2 (en) 2006-08-02 2015-05-12 Cynosure, Inc. Picosecond laser apparatus and methods for its operation and use
US9919168B2 (en) 2009-07-23 2018-03-20 Palomar Medical Technologies, Inc. Method for improvement of cellulite appearance
US9780518B2 (en) 2012-04-18 2017-10-03 Cynosure, Inc. Picosecond laser apparatus and methods for treating target tissues with same

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