JPH0557026A - Probe for laser treatment device - Google Patents

Probe for laser treatment device

Info

Publication number
JPH0557026A
JPH0557026A JP3221400A JP22140091A JPH0557026A JP H0557026 A JPH0557026 A JP H0557026A JP 3221400 A JP3221400 A JP 3221400A JP 22140091 A JP22140091 A JP 22140091A JP H0557026 A JPH0557026 A JP H0557026A
Authority
JP
Japan
Prior art keywords
laser
probe
skin surface
reflected light
photosensor
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
Application number
JP3221400A
Other languages
Japanese (ja)
Inventor
Shigeki Yano
茂喜 矢野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP3221400A priority Critical patent/JPH0557026A/en
Publication of JPH0557026A publication Critical patent/JPH0557026A/en
Pending legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/06Measuring instruments not otherwise provided for
    • A61B2090/064Measuring instruments not otherwise provided for for measuring force, pressure or mechanical tension
    • A61B2090/065Measuring instruments not otherwise provided for for measuring force, pressure or mechanical tension for measuring contact or contact pressure

Landscapes

  • Laser Surgery Devices (AREA)
  • Radiation-Therapy Devices (AREA)

Abstract

PURPOSE:To provide a probe for a laser medical treatment device equipped with a safety device free from sensitivity fluctuation due to a change in environmental and physical conditions. CONSTITUTION:A probe is equipped with a photosensor 7 to detect the reflected light of laser from a skin surface A, and so constituted that the photosensor 7 detects the reflected light, only when the laser irradiation port 8 of the probe is in contact with the skin surface A. When the port 8 is not in contact with the skin surface A, the photosensor 7 is unable to detect the reflected light. If the port 8 comes to part from the skin surface A during laser irradiation, therefore, the irradiation can be interrupted, and the leak of laser can be prevented.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明はレーザ光の誤照射を防止
する安全装置を備えたレーザ医療装置用プローブに関す
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laser medical device probe provided with a safety device for preventing erroneous irradiation of laser light.

【0002】[0002]

【従来の技術】近年、筋肉関節などの慢性疼痛の緩解用
として皮膚表面に数mWないし100mWほどの低出力レー
ザを照射する方法が実際の臨床においても普及してき
た。しかし、レーザ光を誤って眼球へ照射した場合、眼
球を損傷することがあるので、レーザ光の誤照射を防止
するための安全装置が今まで各種考案されてきた。従来
の技術の代表的なものを挙げると生体の浮遊容量による
タッチセンサ方式や、光や超音波を検知手段に用いた方
式(特開昭63−176461号公報)あるいは生体の
皮膚表面の抵抗値検出方式などがある。
2. Description of the Related Art In recent years, a method of irradiating a skin surface with a low-power laser of several mW to 100 mW for relieving chronic pain such as muscle joints has become popular in actual clinical practice. However, if the laser beam is accidentally applied to the eyeball, the eyeball may be damaged. Therefore, various safety devices have been devised to prevent the incorrect irradiation of the laser beam. Typical examples of conventional techniques are a touch sensor method using a floating capacitance of a living body, a method using light or an ultrasonic wave as a detecting means (Japanese Patent Laid-Open No. 63-176461), or a resistance value on the skin surface of a living body. There are detection methods.

【0003】[0003]

【発明が解決しようとする課題】しかし、タッチセンサ
方式は浮遊容量を検出する方式のため、温度や湿度など
の環境条件の変化により感度変化をきたしたり、また皮
膚表面の保湿状態によっても検出感度が変化したりする
短所がある。また、抵抗値検出方式においては、生体の
皮膚表面の抵抗値は皮膚の保湿状態など、日々の体調の
変化により左右されるとともに、個体差が大きいため、
正しい検出ができなくて、実用に供するには多くの課題
を有していた。
However, since the touch sensor method detects stray capacitance, the sensitivity changes due to changes in environmental conditions such as temperature and humidity, and the detection sensitivity also depends on the moisturizing state of the skin surface. Has the disadvantage that it can change. Further, in the resistance value detection method, the resistance value of the skin surface of the living body depends on daily changes in physical condition, such as the moisturizing state of the skin, and since individual differences are large,
Since it could not be detected correctly, it had many problems for practical use.

【0004】本発明はこのような課題を解決するもの
で、環境条件の変化や、日々の体調の変化により検出感
度が変化することのない安全装置付きのレーザ医療装置
用のプローブを提供することを目的とするものである。
The present invention solves such a problem, and provides a probe for a laser medical device with a safety device which does not change the detection sensitivity due to changes in environmental conditions and daily changes in physical condition. The purpose is.

【0005】[0005]

【課題を解決するための手段】この課題を解決するため
に本発明は、レーザ光を皮膚表面に照射するための複数
のレーザダイオードと、前記レーザダイオードを固定す
るための基台と、レーザダイオードからの出力光を集光
させるための集光レンズと、皮膚表面からのレーザの反
射光を検出するための前記レーザダイオードと同数のフ
ォトセンサーとを備え、前記フォトセンサーはプローブ
のレーザ照射口が皮膚表面に接触しているときにのみレ
ーザの反射光を検出するように配設され、前記フォトセ
ンサーのうち少なくとも1つがレーザの反射光を検出し
ないときにはレーザの照射を停止させるよう構成したも
のである。
In order to solve this problem, the present invention provides a plurality of laser diodes for irradiating the surface of the skin with laser light, a base for fixing the laser diodes, and a laser diode. A condenser lens for condensing the output light from the, and the same number of photosensors as the laser diodes for detecting the reflected light of the laser from the skin surface, the photosensor is a laser irradiation port of the probe. It is arranged to detect the reflected light of the laser only when it is in contact with the skin surface, and is configured to stop the irradiation of the laser when at least one of the photosensors does not detect the reflected light of the laser. is there.

【0006】[0006]

【作用】本発明は上記の構成により、プローブのレーザ
照射口が皮膚表面に接触しているときにのみ複数のレー
ザダイオードから照射したレーザ光が皮膚表面で反射し
フォトセンサーにより反射光を検出する。プローブのレ
ーザ照射口が皮膚表面に接触していないときにはフォト
センサーは反射光を検出しない。したがってレーザ光を
照射中にフォトセンサーの出力を監視することにより、
プローブのレーザ照射口が皮膚表面に接触しているかど
うかを検出することが可能であり、プローブのレーザ照
射口が皮膚表面に接触していないときはレーザ光の照射
を停止することができる。この構成により、レーザ光の
誤照射による損傷を未然に防止できることとなる。
According to the present invention, the laser light emitted from the plurality of laser diodes is reflected on the skin surface and the reflected light is detected by the photosensor only when the laser irradiation port of the probe is in contact with the skin surface. .. The photosensor does not detect reflected light when the laser irradiation port of the probe is not in contact with the skin surface. Therefore, by monitoring the output of the photo sensor while irradiating laser light,
It is possible to detect whether the laser irradiation port of the probe is in contact with the skin surface, and when the laser irradiation port of the probe is not in contact with the skin surface, the irradiation of the laser beam can be stopped. With this configuration, it is possible to prevent damage due to erroneous irradiation of laser light.

【0007】[0007]

【実施例】以下に本発明の一実施例を図面に従って説明
する。図1は本発明の一実施例のレーザ治療装置の構成
を示す。図に示すように、レーザ治療装置はレーザダイ
オードを駆動させるための電源および制御機能を有する
本体部1とレーザダイオードが組み込まれたプローブ部
2から構成されており、接続ケーブル9で両者が接続さ
れている。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows the configuration of a laser treatment apparatus according to an embodiment of the present invention. As shown in the figure, the laser treatment apparatus is composed of a main body 1 having a power supply and a control function for driving a laser diode and a probe portion 2 in which the laser diode is incorporated, and both are connected by a connection cable 9. ing.

【0008】図2にはプローブ部2の詳細な構成を示
す。図に示すように基台3には、複数個のレーザダイオ
ード4およびフォトセンサー7が取り付けられており、
レーザダイオード4の前方には、それぞれ集光用レンズ
5が取り付けられている。各レーザダイオード4はその
レーザ光が集光用レンズ5により絞られた状態で集光点
6において全ビームが集中するように配設され、ケース
10に収納されている。また、フォトセンサー7とレー
ザダイオード4とは同じ数が一対一に対応して、レーザ
ダイオード4からのビームがレーザ照射口8において反
射した時の反射方向に配設されている。
FIG. 2 shows a detailed structure of the probe unit 2. As shown in the figure, a plurality of laser diodes 4 and photosensors 7 are attached to the base 3,
A condenser lens 5 is attached in front of each laser diode 4. Each laser diode 4 is arranged so that all the beams are concentrated at a condensing point 6 in a state where the laser light is focused by a condensing lens 5, and is housed in a case 10. The same number of photosensors 7 and laser diodes 4 correspond one-to-one and are arranged in the reflection direction when the beam from the laser diodes 4 is reflected at the laser irradiation port 8.

【0009】レーザ照射口8が皮膚表面Aに接触してい
るときにはレーザダイオード4から照射したレーザ光が
皮膚表面Aで反射することにより、対応するフォトセン
サー7が反射光を検出する。また、レーザ照射口8が皮
膚表面Aに接触していないときにはフォトダイオード4
から放射した光は、フォトセンサー7に入射せず散乱さ
れるので、フォトセンサーは反射光を検出しない。した
がってレーザ光を照射しながら、フォトセンサーの出力
を監視することによりプローブのレーザ照射口が皮膚表
面に接触しているかどうかを検出することができる。も
しプローブのレーザ照射口が皮膚表面に接触していない
ときにはフォトセンサーの出力を検知して、レーザ光の
照射を停止することができる。
When the laser irradiation port 8 is in contact with the skin surface A, the laser light emitted from the laser diode 4 is reflected by the skin surface A, and the corresponding photosensor 7 detects the reflected light. When the laser irradiation port 8 is not in contact with the skin surface A, the photodiode 4
Since the light emitted from the photosensor 7 is scattered without being incident on the photosensor 7, the photosensor does not detect the reflected light. Therefore, it is possible to detect whether the laser irradiation port of the probe is in contact with the skin surface by monitoring the output of the photo sensor while irradiating the laser beam. If the laser irradiation port of the probe is not in contact with the skin surface, the output of the photosensor can be detected and the irradiation of laser light can be stopped.

【0010】[0010]

【発明の効果】以上の実施例の説明より明らかなように
本発明によれば、環境条件の変化や日々の体調の変化に
より感度が変化することのない、安全装置付のレーザ医
療装置用のプローブを実現でき、安全にレーザ医療装置
を使用することができる。
As is apparent from the above description of the embodiments, according to the present invention, the sensitivity of the laser medical device with the safety device does not change due to changes in environmental conditions and daily physical conditions. The probe can be realized and the laser medical device can be safely used.

【図面の簡単な説明】[Brief description of drawings]

【図1】レーザ医療装置の一般的な構成を示す図FIG. 1 is a diagram showing a general configuration of a laser medical device.

【図2】本発明の一実施例のレーザ治療装置用プローブ
の要部断面図
FIG. 2 is a cross-sectional view of a main part of a probe for a laser treatment apparatus according to an embodiment of the present invention.

【符号の説明】 1 本体部 2 プローブ部 3 基台 4 レーザダイオード 5 レンズ 6 集光点 7 フォトセンサー 8 レーザ照射口 9 接続ケーブル 10 ケース A 皮膚表面[Explanation of reference numerals] 1 main body 2 probe 3 base 4 laser diode 5 lens 6 converging point 7 photosensor 8 laser irradiation port 9 connection cable 10 case A skin surface

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】レーザ光を皮膚表面に照射するための複数
のレーザダイオードと、前記レーザダイオードを固定す
るための基台と、レーザダイオードからの出力光を集光
させるための集光レンズと、皮膚表面からのレーザの反
射光を検出するための前記レーザダイオードと同数のフ
ォトセンサーとを備え、前記フォトセンサーはプローブ
のレーザ照射口が皮膚表面に接触しているときにのみレ
ーザの反射光を検出するように配設され、前記フォトセ
ンサーのうち少なくとも1つがレーザの反射光を検出し
ないときにはレーザの照射を停止させる構成のレーザ医
療装置用プローブ。
1. A plurality of laser diodes for irradiating the skin surface with laser light, a base for fixing the laser diodes, and a condenser lens for condensing output light from the laser diodes. The same number of photosensors as the laser diodes for detecting the reflected light of the laser from the skin surface are provided, and the photosensor emits the reflected light of the laser only when the laser irradiation port of the probe is in contact with the skin surface. A probe for a laser medical device, which is arranged so as to detect and which stops irradiation of a laser when at least one of the photosensors does not detect the reflected light of the laser.
JP3221400A 1991-09-02 1991-09-02 Probe for laser treatment device Pending JPH0557026A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3221400A JPH0557026A (en) 1991-09-02 1991-09-02 Probe for laser treatment device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3221400A JPH0557026A (en) 1991-09-02 1991-09-02 Probe for laser treatment device

Publications (1)

Publication Number Publication Date
JPH0557026A true JPH0557026A (en) 1993-03-09

Family

ID=16766163

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3221400A Pending JPH0557026A (en) 1991-09-02 1991-09-02 Probe for laser treatment device

Country Status (1)

Country Link
JP (1) JPH0557026A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08172261A (en) * 1994-12-20 1996-07-02 Nec Corp Laser soldering apparatus and light radiation device
WO2002078559A1 (en) * 2001-03-30 2002-10-10 Koninklijke Philips Electronics N.V. Skin treating device comprising a protected radiation exit opening
EP1632267A3 (en) * 1996-11-13 2006-08-02 Meditech International Inc. Method and apparatus for photon therapy
CN102908724A (en) * 2012-11-05 2013-02-06 武汉中科科理光电技术有限公司 Protection method and protection device for preventing irradiation source of irradiation type therapeutic apparatus from external leakage
CN113827184A (en) * 2020-06-23 2021-12-24 福州数据技术研究院有限公司 Laser light-emitting protection method suitable for photoacoustic imaging system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08172261A (en) * 1994-12-20 1996-07-02 Nec Corp Laser soldering apparatus and light radiation device
EP1632267A3 (en) * 1996-11-13 2006-08-02 Meditech International Inc. Method and apparatus for photon therapy
WO2002078559A1 (en) * 2001-03-30 2002-10-10 Koninklijke Philips Electronics N.V. Skin treating device comprising a protected radiation exit opening
CN102908724A (en) * 2012-11-05 2013-02-06 武汉中科科理光电技术有限公司 Protection method and protection device for preventing irradiation source of irradiation type therapeutic apparatus from external leakage
CN113827184A (en) * 2020-06-23 2021-12-24 福州数据技术研究院有限公司 Laser light-emitting protection method suitable for photoacoustic imaging system

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