JPS6354386B2 - - Google Patents
Info
- Publication number
- JPS6354386B2 JPS6354386B2 JP55009301A JP930180A JPS6354386B2 JP S6354386 B2 JPS6354386 B2 JP S6354386B2 JP 55009301 A JP55009301 A JP 55009301A JP 930180 A JP930180 A JP 930180A JP S6354386 B2 JPS6354386 B2 JP S6354386B2
- Authority
- JP
- Japan
- Prior art keywords
- scalpel
- laser
- patient
- affected area
- light
- 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.)
- Expired
Links
- 238000001514 detection method Methods 0.000 claims description 13
- 238000001356 surgical procedure Methods 0.000 claims description 2
- 230000005284 excitation Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
Description
【発明の詳細な説明】
この発明は安全装置を備えた手術用レーザメス
に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a surgical laser scalpel equipped with a safety device.
レーザ装置は細い光のビームを作ることができ
るので、各種分野の微細加工に適しており、近年
この微細加工を医学分野において手術用レーザメ
スとして応用されつつある。 Laser devices can produce narrow beams of light, so they are suitable for microfabrication in various fields, and in recent years this microfabrication has been applied to surgical laser scalpels in the medical field.
しかしながら手術用のレーザメスとして応用し
た場合にエネルギが強いこと、遠方までとどくこ
と、他の手術用メス等の金属への反射により思い
もかけないところへとどくこともままあり、また
患者の患部が近くにあつてもなくてもレーザ光線
が照射されるため患者の患部以外の個所に当接し
たりして非常に危険であるなどの多くの欠点があ
つた。 However, when used as a surgical laser scalpel, the energy is strong, it can reach long distances, and it may reach unexpected places due to reflection from metals such as other surgical scalpels, and the patient's affected area may be nearby. It has many drawbacks, such as the fact that the laser beam is irradiated regardless of whether the patient is affected or not, so it may come into contact with areas other than the affected area of the patient, making it extremely dangerous.
この発明は上記従来のもののもつ欠点を排除
し、手術用レーザメスのメス先と患者の患部との
距離を常時所定の距離になるようにその距離を検
出部材によつて検出し、検出値があらかじめ定め
た値と一致したときにのみレーザ光線を照射する
ことができ、患者の患部の正確な位置に照射する
ことができる手術用レーザメスを提供することを
目的とするものである。 This invention eliminates the drawbacks of the conventional methods described above, and uses a detection member to detect the distance between the scalpel tip of a surgical laser scalpel and the patient's affected area so that the distance is always a predetermined distance, and the detected value is determined in advance. It is an object of the present invention to provide a surgical laser scalpel that can irradiate a laser beam only when the value matches a predetermined value, and can irradiate a precise position on the affected area of a patient.
この発明を図面に示す実施例を参照しながら説
明する。 This invention will be described with reference to embodiments shown in the drawings.
第１図はこの発明の手術用レーザメスの一実施
例を示す構成図であつて、同図において１は手術
用レーザメスであり、この手術用レーザメス１に
はレーザ発光部２より発光されたレーザ光線をラ
イトガイド３を介してメス先１ａに送られ、メス
先１ａの端部よりレーザ光線７が患者４の患部４
ａに照射されて焼き切るようになつている。また
前記手術用レーザメス１のメス先１ａの端部には
発光ダイオードなどよりなる発光素子５を取付け
て、この発光素子５より照射された光線が患者４
の患部４ａを焼き切るのに最適な位置に集光する
ように構成されている。さらに前記手術用レーザ
メス１のメス先１ａの発光素子５と反対側の位置
には前記発光素子５より照射された光線の反射を
受光する受光素子６が取付けられていて、発光素
子５から照射された光線を検出するように構成さ
れている。 FIG. 1 is a configuration diagram showing one embodiment of a surgical laser scalpel according to the present invention. In the figure, 1 is a surgical laser scalpel, and this surgical laser scalpel 1 receives a laser beam emitted from a laser emitting unit 2. is sent to the scalpel tip 1a via the light guide 3, and the laser beam 7 is emitted from the end of the scalpel tip 1a to the affected area 4 of the patient 4.
It is designed to burn out when irradiated to a. Further, a light emitting element 5 made of a light emitting diode or the like is attached to the end of the scalpel tip 1a of the surgical laser scalpel 1, and the light emitted from the light emitting element 5 is directed toward the patient 4.
It is configured to focus the light on the optimal position for burning out the affected area 4a. Furthermore, a light receiving element 6 is attached to the scalpel tip 1a of the surgical laser knife 1 at a position opposite to the light emitting element 5, and the light receiving element 6 receives the reflection of the light emitted from the light emitting element 5. The sensor is configured to detect light rays generated by the sensor.
上記レーザ発光部２は、例えば第２図のような
構成になつている。即ち、レーザを発生させるレ
ーザ媒体２ａと、該レーザ媒体２ａの陽極と陰極
との間に発振電圧を印加する励起電源回路２ｂと
によつて構成されており、この励起電源回路２ｂ
の起動端子に前記受光素子６からの受光信号が印
加されるようになつている。この場合、受光素子
６からの受光信号が所定のレベルに達していない
とき、或いは全く受光信号が生じていないときに
は上記励起電源回路２ｂは動作せず、受光信号が
所定のレベル以上であれば該回路が起動されるよ
うに構成されている。この受光素子の所定レベル
は、手術用レーザメス１のメス先１ａの端部と患
者４の患部４ａとの距離が最適位置にある場合を
基準として設定される。従つて、手術用レーザメ
ス１のメス先１ａの端部と患者４の患部４ａとが
最適位置にない場合には反射光線が減少するか若
しくは無くなるので、この場合にはメス把持部等
に取付けられた照射スイツチ（図示せず）を押し
てもレーザ発光部２よりレーザ光線７が発生しな
いこととなる。また上記手術用レーザメス１のメ
ス先１ａと患者４の患部４ａとの距離は使用する
メスの種類によつて適宜の距離に設定されるもの
であり、またその距離を測定する発光素子５の照
射と受光素子６の入射とのなす角度αは適宜の手
段により調整するように構成されている。 The laser emitting section 2 has a configuration as shown in FIG. 2, for example. That is, it is composed of a laser medium 2a that generates laser and an excitation power supply circuit 2b that applies an oscillation voltage between the anode and cathode of the laser medium 2a.
The light receiving signal from the light receiving element 6 is applied to the starting terminal of the light receiving element 6. In this case, when the light receiving signal from the light receiving element 6 does not reach a predetermined level or when no light receiving signal is generated, the excitation power supply circuit 2b does not operate, and if the light receiving signal is at a predetermined level or higher, the excitation power supply circuit 2b does not operate. The circuit is configured to be activated. The predetermined level of the light receiving element is set based on the case where the distance between the end of the scalpel tip 1a of the surgical laser scalpel 1 and the affected area 4a of the patient 4 is at an optimal position. Therefore, if the end of the scalpel tip 1a of the surgical laser scalpel 1 and the affected area 4a of the patient 4 are not in the optimal position, the reflected light beam will decrease or disappear. Even if the irradiation switch (not shown) is pressed, the laser beam 7 will not be emitted from the laser emitting section 2. Further, the distance between the scalpel tip 1a of the surgical laser scalpel 1 and the affected area 4a of the patient 4 is set to an appropriate distance depending on the type of scalpel used, and the distance is irradiated by the light emitting element 5 for measuring the distance. The angle α formed by the incident light and the light receiving element 6 is configured to be adjusted by appropriate means.
次に上記のものの作用について説明する。 Next, the operation of the above will be explained.
上記のように構成した手術用レーザメス１を使
用する際には操作者がメス先１ａを手でもつて把
持し、このメス先１ａを患者４の患部４ａに近づ
けて行き、その手術用レーザメス１のメス先１ａ
に取付けた発光ダイオードよりなる発光素子５よ
り照射された光線があらかじめ定めた距離になり
患者４の患部４ａに当接して反射し、反対側に設
けた受光素子６に入射すると、操作者が照射スイ
ツチを押すことによりレーザ発光部２が作動して
レーザ発光部２よりレーザ光線が発生し、この発
生したレーザ光線はライトガイド３を介してメス
先１ａに送られ、この手術用レーザメス１のメス
先１ａに送られ、この手術用レーザメス１のメス
先１ａよりレーザ光線７が患者４の患部４ａに向
かつて照射されて患部４ａを焼き切ることとな
る。以上のような操作を順次繰返して行なつて患
者４の患部４ａを手術することとなる。 When using the surgical laser scalpel 1 configured as described above, the operator grasps the scalpel tip 1a with his/her hand, brings the scalpel tip 1a close to the affected area 4a of the patient 4, and then moves the surgical laser scalpel 1 toward the affected area 4a of the patient 4. Female tip 1a
When a light beam emitted from a light emitting element 5 made of a light emitting diode attached to the patient reaches a predetermined distance, hits the affected area 4a of the patient 4, is reflected, and enters the light receiving element 6 installed on the opposite side, the operator By pressing the switch, the laser emitting unit 2 is activated and a laser beam is emitted from the laser emitting unit 2. The generated laser beam is sent to the scalpel tip 1a via the light guide 3, and the knife of this surgical laser knife 1 is The laser beam 7 is directed toward the affected area 4a of the patient 4 from the scalpel tip 1a of the surgical laser scalpel 1 and is irradiated to burn off the affected area 4a. The above-described operations are sequentially repeated to perform surgery on the affected area 4a of the patient 4.
なお手術用レーザメス１のメス先１ａと患者４
の患部４ａとの間の距離があらかじめ定めた距離
でないときは発光素子５から照射された光線が受
光素子６によつて受光された場合のその光線の量
が減少するか、若しくはなくなることとなり、所
定レベルに達しないのでレーザ発光部２の励起電
源回路２ｂが動作せず、この場合には操作者が照
射スイツチを押してもレーザ発光部２よりレーザ
光線が発光しないこととなる。またメス先１ａよ
りレーザ光線７が照射されるときは受光素子６に
受光される光量は増すからレーザ照射時に励起電
源回路２ｂが停止するような不都合は生じない。 Note that the knife tip 1a of the surgical laser knife 1 and the patient 4
If the distance between the affected area 4a and the affected area 4a is not a predetermined distance, the amount of light emitted from the light emitting element 5 and received by the light receiving element 6 will decrease or disappear; Since the predetermined level is not reached, the excitation power supply circuit 2b of the laser emitting section 2 does not operate, and in this case, even if the operator presses the irradiation switch, the laser beam will not be emitted from the laser emitting section 2. Further, when the laser beam 7 is irradiated from the knife tip 1a, the amount of light received by the light receiving element 6 increases, so that there is no problem such as stopping the excitation power supply circuit 2b during laser irradiation.
なお上記実施例ではメス先１ａの最適位置に患
者４の患部４ａが位置しているかどうかを検出を
するのに際して発光素子５より照射された光線を
患者４の患部４ａに当接させて反射させ、この反
射した光線を反対側に設けた受光素子６に入射さ
せてメス先１ａと患者４の患部４ａとの距離を検
出するようにしたものを示しているが、これに限
定するものではなく、例えばメス先１ａの端部に
超音波の発信部を取付けるとともにこの発信部よ
り発信された超音波の反射を受信する受信部を設
け、反射パルスの時間を測定し、この時間があら
かじめ定めた値（メス先１ａと患者４の患部４ａ
との距離の反射パルスの時間）に達した際に受信
部から電気信号を発生させ、レーザ発光部の励起
電源回路の動作を制御するようにしてもよく、ま
たメス先１ａに電波の送信部と受信部とを設け、
電波の反射時間を測定するか、又は反射電波の有
無を測定して、この測定値があらかじめ定めた値
（メス先１ａと患者４の患部４ａとの間の距離）
に達した際にレーザ発光部の励起電源回路を動作
させるようにしてもよく、さらに検出効率を高め
て距離を正確に検出するために手術用レーザメス
１のメス先１ａの端部の相対向する位置に送信部
又は発光部と受信部又は受光部とをそれぞれ配置
して、両者によりメス先１ａと患者４の患部４ａ
との距離の最適位置を検出するように構成しても
よい。このように２種類の検出部材を併用するこ
とにより検出効率を高めることができ、この場合
には周囲からの信号と測定用の光線とを区別する
ために光線を照射している間だけ受光部のゲート
を開くようにすることができる。また光線、超音
波および電波のうち、複数の組合せにすることも
でき、この場合にもさらに安全性が増大すること
となる。 In the above embodiment, when detecting whether or not the affected area 4a of the patient 4 is located at the optimal position of the scalpel tip 1a, the light beam emitted from the light emitting element 5 is brought into contact with the affected area 4a of the patient 4 and reflected. , shows a device in which the distance between the scalpel tip 1a and the affected area 4a of the patient 4 is detected by making the reflected light beam incident on the light receiving element 6 provided on the opposite side, but the present invention is not limited to this. For example, an ultrasonic transmitting section is attached to the end of the scalpel tip 1a, and a receiving section is provided to receive the reflected ultrasonic waves emitted from this transmitting section, and the time of the reflected pulse is measured, and this time is determined in advance. Value (knife tip 1a and patient 4's affected area 4a)
It is also possible to control the operation of the excitation power supply circuit of the laser emitting part by generating an electric signal from the receiving part when the reflected pulse reaches the distance from and a receiving section,
The reflection time of radio waves is measured or the presence or absence of reflected radio waves is measured, and this measured value is a predetermined value (distance between the scalpel tip 1a and the affected area 4a of the patient 4).
The excitation power supply circuit of the laser emitting part may be operated when the distance is reached, and in order to further improve the detection efficiency and accurately detect the distance, the ends of the scalpel tip 1a of the surgical laser scalpel 1 may be arranged to face each other. A transmitting part or a light emitting part and a receiving part or a light receiving part are arranged at the respective positions, and the scalpel tip 1a and the affected part 4a of the patient 4 are connected by both of them.
The configuration may also be configured to detect the optimum position of the distance between the two. In this way, the detection efficiency can be increased by using two types of detection members together, and in this case, in order to distinguish between signals from the surroundings and the measurement light beam, the light receiving part is used only while the light beam is being irradiated. The gate can be opened. Furthermore, a combination of light beams, ultrasonic waves, and radio waves may be used, and safety will further increase in this case as well.
それに加えるに、光線、超音波および電波以外
の検出部材としては手術用のレーザメス１のメス
先１ａの端部に、メス先１ａと患者４の患部４ａ
との最適位置に相当する距離の長さの棒部材を取
付け、この棒部材によりメス先１ａと患者４の患
部４ａとの距離を測定してもよい。この場合にお
いて検出を正確に行なうために、メス先１ａ側の
端部にマイクロスイツチを取付けて、メス先１ａ
と患者４の患部４ａとの距離を測定するようにし
てもよい。またマイクロスイツチに代えて圧力を
検出する圧力検出部材を取付けて、所定の圧力を
検出したとき、メス先１ａと患者４の患部４ａと
の距離が最適位置になつたことを検出するように
してもよい。 In addition, as a detection member other than light beams, ultrasonic waves, and radio waves, the scalpel tip 1a and the affected area 4a of the patient 4 are connected to the end of the scalpel tip 1a of the surgical laser scalpel 1.
The distance between the scalpel tip 1a and the affected area 4a of the patient 4 may be measured by attaching a rod member having a length corresponding to the optimum position between the two. In this case, in order to perform accurate detection, a micro switch is attached to the end of the knife tip 1a side, and the knife tip 1a
The distance between the patient's 4 and the affected area 4a may be measured. In addition, a pressure detection member for detecting pressure is installed in place of the micro switch, and when a predetermined pressure is detected, it is detected that the distance between the scalpel tip 1a and the affected area 4a of the patient 4 has reached the optimum position. Good too.
なお上記実施例は単なる一例にすぎず、各部材
につき、同一の機能をもつ他の部材に置換えるこ
とができることは言うまでもない。 Note that the above embodiment is merely an example, and it goes without saying that each member can be replaced with another member having the same function.
この発明は上記のように構成したので、手術用
レーザメスのメス先と患者の患部との距離を常時
所定の距離になるようにその距離を検出部材によ
つて検出し、検出値があらかじめ定めた値と一致
したときのみレーザ光線を患者の患部に正確に照
射することができるようにしているため、安全性
の高い手術用レーザメスを提供することができ
る。 Since this invention is constructed as described above, the distance between the tip of the surgical laser scalpel and the affected area of the patient is always detected by the detection member so that the distance is always a predetermined distance, and the detected value is determined in advance. Since the laser beam can be accurately irradiated to the affected area of the patient only when the values match, it is possible to provide a highly safe surgical laser scalpel.
しかも構成が著しく簡単であつて製品を安価に
提供することができるなどの優れた効果を有する
ものである。 Furthermore, the structure is extremely simple, and the product has excellent effects such as being able to be provided at a low cost.
第１図はこの発明の一実施例を示す構成図であ
り、第２図はレーザ発光部の構成の一例を示すブ
ロツク線図である。
１……手術用レーザメス、１ａ……メス先、２
……レーザ発光部、２ａ……レーザ媒体、２ｂ…
…励起電源回路、３……ライトガイド、４……患
者、４ａ……患部、５……発光素子、６……受光
素子、７……レーザ光線。
FIG. 1 is a block diagram showing one embodiment of the present invention, and FIG. 2 is a block diagram showing an example of the structure of a laser emitting section. 1... Surgical laser scalpel, 1a... Scalpel tip, 2
... Laser emitting section, 2a ... Laser medium, 2b...
...Excitation power supply circuit, 3... Light guide, 4... Patient, 4a... Affected area, 5... Light emitting element, 6... Light receiving element, 7... Laser beam.
Claims (1)
し、このレーザ発光部から出力されるレーザ光線
を用いて患部に照射する手術用レーザメスにおい
て、前記レーザメスのメス先に、メス先と患者の
患部との距離があらかじめ定められた距離に達し
た際これを検出し信号を出力する検出部材を取付
け、検出部材からの検出信号によつて前記レーザ
発光部からのレーザ光線を制御したことを特徴と
する手術用レーザメス。 ２ 前記検出部材が、患者の患部に光を照射する
発光素子と、患者の患部からの光の反射を受光す
る受光素子とからなることを特徴とする特許請求
の範囲第１項に記載の手術用レーザメス。 ３ 前記検出部材が、患者の患部に超音波を発射
する発振部と、この患部に当接した超音波の発射
を受信する受信部とからなることを特徴とする特
許請求の範囲第１項に記載の手術用レーザメス。[Scope of Claims] 1. In a surgical laser scalpel that is connected to a laser emitting section via a light guide and irradiates an affected area with a laser beam output from the laser emitting section, a scalpel tip is attached to the scalpel tip of the laser scalpel. A detection member was installed to detect when the distance between the patient and the affected area of the patient reached a predetermined distance and output a signal, and the laser beam from the laser emitting unit was controlled by the detection signal from the detection member. A surgical laser scalpel characterized by: 2. The surgery according to claim 1, wherein the detection member comprises a light emitting element that irradiates light to the affected area of the patient, and a light receiving element that receives light reflected from the affected area of the patient. Laser scalpel for. 3. According to claim 1, the detection member comprises an oscillating section that emits ultrasonic waves to the affected area of the patient, and a receiving section that receives the emitted ultrasonic waves that have come into contact with the affected area. The surgical laser scalpel described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP930180A JPS56106646A (en) | 1980-01-31 | 1980-01-31 | Laser knife for operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP930180A JPS56106646A (en) | 1980-01-31 | 1980-01-31 | Laser knife for operation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56106646A JPS56106646A (en) | 1981-08-25 |
| JPS6354386B2 true JPS6354386B2 (en) | 1988-10-27 |
Family
ID=11716644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP930180A Granted JPS56106646A (en) | 1980-01-31 | 1980-01-31 | Laser knife for operation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56106646A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5946952A (en) * | 1982-09-13 | 1984-03-16 | 株式会社日立製作所 | Laser knife apparatus |
| JPS61143054A (en) * | 1984-12-18 | 1986-06-30 | 旭光学工業株式会社 | Laser knife apparatus |
| JPS63182764U (en) * | 1987-05-15 | 1988-11-25 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4927590U (en) * | 1972-06-12 | 1974-03-09 | ||
| JPS509198A (en) * | 1973-05-30 | 1975-01-30 | ||
| JPS5270851A (en) * | 1975-10-23 | 1977-06-13 | Mitsubishi Electric Corp | Focal point adjusting system for rays |
-
1980
- 1980-01-31 JP JP930180A patent/JPS56106646A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4927590U (en) * | 1972-06-12 | 1974-03-09 | ||
| JPS509198A (en) * | 1973-05-30 | 1975-01-30 | ||
| JPS5270851A (en) * | 1975-10-23 | 1977-06-13 | Mitsubishi Electric Corp | Focal point adjusting system for rays |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56106646A (en) | 1981-08-25 |
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