JP2000316866A - Recognizing method and recognizing device for blood vessel - Google Patents
Recognizing method and recognizing device for blood vesselInfo
- Publication number
- JP2000316866A JP2000316866A JP11125510A JP12551099A JP2000316866A JP 2000316866 A JP2000316866 A JP 2000316866A JP 11125510 A JP11125510 A JP 11125510A JP 12551099 A JP12551099 A JP 12551099A JP 2000316866 A JP2000316866 A JP 2000316866A
- Authority
- JP
- Japan
- Prior art keywords
- blood vessel
- near infrared
- infrared
- light
- blood
- 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
- 210000004204 blood vessel Anatomy 0.000 title claims abstract description 75
- 238000000034 method Methods 0.000 title claims description 17
- 230000001678 irradiating effect Effects 0.000 claims abstract description 10
- 238000002347 injection Methods 0.000 abstract description 15
- 239000007924 injection Substances 0.000 abstract description 15
- 239000000523 sample Substances 0.000 abstract description 10
- 239000003365 glass fiber Substances 0.000 abstract description 4
- 230000002238 attenuated effect Effects 0.000 abstract description 2
- 239000000243 solution Substances 0.000 abstract 1
- 108010054147 Hemoglobins Proteins 0.000 description 8
- 102000001554 Hemoglobins Human genes 0.000 description 8
- 210000003462 vein Anatomy 0.000 description 8
- 210000001367 artery Anatomy 0.000 description 6
- 230000000007 visual effect Effects 0.000 description 6
- 239000003814 drug Substances 0.000 description 5
- 238000012800 visualization Methods 0.000 description 5
- 210000004369 blood Anatomy 0.000 description 4
- 239000008280 blood Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 108010064719 Oxyhemoglobins Proteins 0.000 description 3
- 229940079593 drug Drugs 0.000 description 3
- 238000001931 thermography Methods 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 210000000601 blood cell Anatomy 0.000 description 2
- 230000017531 blood circulation Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 210000003743 erythrocyte Anatomy 0.000 description 2
- 208000014951 hematologic disease Diseases 0.000 description 2
- 101100366710 Arabidopsis thaliana SSL12 gene Proteins 0.000 description 1
- 101000777301 Homo sapiens Uteroglobin Proteins 0.000 description 1
- 101100366563 Panax ginseng SS13 gene Proteins 0.000 description 1
- 102100031083 Uteroglobin Human genes 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000010241 blood sampling Methods 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
- 238000007794 visualization technique Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/14—Vascular patterns
- G06V40/145—Sensors therefor
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/14—Vascular patterns
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、種々の身体部分を
捜し出して血管注射のときに、血管の視認を容易にする
血管の視覚化する方法及び装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for visualizing blood vessels that facilitate the visualization of blood vessels during vascular injection by locating various body parts.
【０００２】[0002]
【従来の技術】現在、実施されている血液疾患やその他
血液疾患以外の疾患でも、診断のために血液が採取され
る。また、治療のために必要な薬品を血管を通して患者
の身体内部に注入する。血液の採血又は薬品の注入は、
通常は以下の手順で行われる。 注射針を注射筒に接続して注射の用意をする。 上腕にゴムバンドを適当な強さに巻き、患者には母指
を中にして手を握らせて、血管を怒張させて大きくす
る。血管が怒張しないときは、腕を適当に擦るか蒸しタ
オル等で温める。 穿刺する部位を中心にアルコールを含む綿で消毒し、
乾いた後に、注射針を血管に平行に穿刺する。 注射針が血管に入ったら、注射筒の内筒をゆっくり引
いて血液を採取する又は注射筒の内筒をゆっくり押し込
み目的の薬品を注入する。 ゴムバンドをはずし、アルコールを含む綿で穿刺部位
を押さえ、注射針を抜く。2. Description of the Related Art Blood is collected for diagnosis of blood diseases currently in use and other diseases other than blood diseases. In addition, drugs necessary for treatment are injected into the patient's body through blood vessels. Blood sampling or drug infusion
Usually, the following procedure is performed. Prepare the injection by connecting the injection needle to the syringe. A rubber band is wrapped around the upper arm to the appropriate strength, and the patient is squeezed with his thumb inward, causing the blood vessels to bulge and enlarge. If the blood vessels do not distort, rub the arms appropriately or warm with a steamed towel. Disinfect the area to be punctured with cotton containing alcohol,
After drying, a needle is punctured parallel to the blood vessel. When the injection needle enters the blood vessel, the inner tube of the syringe is slowly pulled to collect blood, or the inner tube of the syringe is slowly pushed to inject the desired drug. Remove the rubber band, hold the puncture site with cotton containing alcohol, and remove the injection needle.
【０００３】しかしながら、上記手順では、静脈・動脈
等の血管の注射は医師・看護婦の経験により行われるこ
とが多い。このために、血管の視認できる患者を除く
と、ほとんどの場合は経験による勘で注射の部位を決め
るのが実状である。血管に注射するつもりでも、血管外
に注射針が出てしまい、穿刺部位周辺に薬品が漏れてし
まい、薬品の効果がないばかりでなく、周辺組織に損傷
を起こす場合がある。[0003] In the above procedure, however, injection of blood vessels such as veins and arteries is often performed based on the experience of doctors and nurses. For this reason, except for patients who can see the blood vessels, in most cases, the injection site is determined based on experience. Even when an injection is intended to be made into a blood vessel, the injection needle may come out of the blood vessel, leaking the medicine around the puncture site, not only having no effect of the medicine but also causing damage to surrounding tissues.
【０００４】[0004]
【発明が解決しようとする課題】そのために、血管の存
在を検知するための技術が提案されている。例えば、サ
ーモグラフィ装置を使用する血管の検知方法が知られて
いる。図２は、サーモグラフィ装置による血管の検知方
法を概念的に示す図である。物体の表面からは、通常物
体表面の温度に対応した波長の光線が放射されている。
身体表面より放射されている光線は波長１０μｍ以上の
遠赤外光線であるが、この遠赤外光線の強度を赤外セン
サにより測定する。走査鏡から入射する赤外線をレンズ
でセンサ上に結像させる。走査鏡を適当に走査すること
で、身体方面の温度分布を二次画像として表示するもの
である。このとき、血液が流れる血管はその周辺の領域
より温度が高いために、身体内の血管をディスプレイ上
で識別・検知することができる。しかしながら、血管の
検知はディスプレイ上で行うため注射の部位を直接視認
できず、医師等の注射をする際には、血管を視認できな
い場合がある。また、センサで測定した光線の強度を処
理して画像化しなければならず、装置が大型化してしま
い、実用的ではないという問題がある。Therefore, a technique for detecting the presence of a blood vessel has been proposed. For example, a blood vessel detection method using a thermography device is known. FIG. 2 is a diagram conceptually illustrating a method of detecting a blood vessel by the thermography device. A light beam having a wavelength corresponding to the temperature of the surface of the object is usually emitted from the surface of the object.
The light emitted from the body surface is far-infrared light having a wavelength of 10 μm or more, and the intensity of the far-infrared light is measured by an infrared sensor. Infrared rays incident from a scanning mirror are imaged on a sensor by a lens. By appropriately scanning the scanning mirror, the temperature distribution in the body direction is displayed as a secondary image. At this time, since the temperature of the blood vessel through which the blood flows is higher than the surrounding area, the blood vessel in the body can be identified and detected on the display. However, since the detection of the blood vessel is performed on the display, the site of the injection cannot be directly visually recognized, and the blood vessel may not be visually recognized at the time of injection by a doctor or the like. Further, there is a problem that the intensity of the light beam measured by the sensor must be processed to form an image, and the device becomes large in size, which is not practical.
【０００５】そこで、上記問題点を鑑み、本発明の目的
は、医師等が注射をする際に、ディスプレイ等の表示装
置を用いることなく、注射部位を直接視認できる血管の
視認方法を提供することである。また、本発明の目的
は、血管を視認するために、小型の簡易な装置を提供す
ることである。[0005] In view of the above problems, an object of the present invention is to provide a method for visually recognizing a blood vessel which allows a doctor or the like to directly visually recognize an injection site without using a display device such as a display when performing an injection. It is. Another object of the present invention is to provide a small and simple device for visually recognizing blood vessels.
【０００６】[0006]
【課題を解決するための手段】上記のような問題点を解
決するために、請求項１に記載の発明は、 身体に赤外
線帯域の光線を照射することにより、身体中の血管を視
認する血管の視認方法である。請求項２に記載の発明
は、 請求項１に記載の血管の視認方法において、 赤
外線帯域の光線が７００〜８００ｎｍの近赤外光線であ
る血管の視認方法である。請求項３に記載の発明は、
身体中の血管を視認するための赤外線帯域の光線を照射
する血管の視認装置において、 ７００〜８００ｎｍの
近赤外光線を照射する血管の視認装置である。Means for Solving the Problems In order to solve the above-mentioned problems, the invention according to claim 1 is directed to irradiating a body with a light beam in an infrared band to thereby visually recognize a blood vessel in the body. Is a visual recognition method. The invention according to claim 2 is the method for visually recognizing a blood vessel according to claim 1, wherein the light in the infrared band is a near-infrared light having a wavelength of 700 to 800 nm. The invention according to claim 3 is
The apparatus for visually recognizing a blood vessel which irradiates a light ray in an infrared band for visually recognizing a blood vessel in a body, the apparatus for visually recognizing a blood vessel which emits a near-infrared ray of 700 to 800 nm.
【０００７】[0007]
【発明の実施の形態】以下、本発明の実施形態を図面に
基づいて説明する。なお、以下に説明する実施形態は、
本発明の適当な具体例で、種々の技術的条件を設けてい
るが、当該分野の技術者であれば他の種々の条件が可能
であり、以下の説明における条件は本発明の範囲を限定
するものではない。Embodiments of the present invention will be described below with reference to the drawings. The embodiments described below are:
Although various technical conditions are provided in a suitable specific example of the present invention, other various conditions are possible by those skilled in the art, and the conditions in the following description limit the scope of the present invention. It does not do.
【０００８】図１は、血管の視認装置から近赤外光線を
身体に照射して、身体中の血管を視認する血管の視認方
法を模式的に示した図である。請求項１に記載の発明
は、身体に赤外線帯域の光線を照射することにより、身
体中の血管を視認する血管の視認方法である。ここで、
血管の視認装置から近赤外光線を発生させ、身体の一部
に照射して、照射される近赤外光線を身体内部に侵入さ
せる。身体内部に侵入する近赤外光線は、一部は身体の
内部組織、体液に吸収されて減衰するが、多くは血管に
より優先的に吸収される。このために、身体内部に侵入
する近赤外光線は身体内部で散乱、反射することにより
ふたたび身体外部に出てくる。このときに、血管によっ
て多くの近赤外光線が吸収されるために、血管の存在す
る部分が外部観察者の目には黒くなって無侵襲的に血管
を視認することができる。血管中には多くの成分が含ま
れるが、タンパク質、脂質、糖類、電解質等の血漿と血
小板、赤血球等の血球に大きく分類される。この血球の
中で赤血球中のヘエモグロビンは、さらに、酸素を含む
か否かにより酸化ヘモグロビンと還元ヘモグロビンに分
類される。これら２つの種類のヘモグロビンのうち、還
元ヘモグロビンは、近赤外光線の７００〜８００ｎｍの
帯域においては多量の光を吸収し、一方、酸化ヘモグロ
ビンは、近赤外光線の９００〜１０００ｎｍの帯域で多
量の光を吸収する。このために、身体内の血管を無侵襲
的に視認するためには、身体に照射する光線は近赤外光
線が好ましい。FIG. 1 is a diagram schematically showing a method of visually recognizing a blood vessel in which a near-infrared ray is radiated to the body from a blood vessel recognizing device to visually recognize a blood vessel in the body. The first aspect of the present invention is a method for visually recognizing a blood vessel in a body by irradiating the body with light rays in an infrared band. here,
A near-infrared ray is generated from a blood vessel visualization device, irradiates a part of the body, and the irradiated near-infrared ray enters inside the body. Near-infrared rays that enter the body are partially absorbed and attenuated by internal tissues and fluids of the body, but most are preferentially absorbed by blood vessels. For this reason, the near-infrared ray that enters the inside of the body again scatters and reflects inside the body, and then comes out of the body again. At this time, since many near-infrared rays are absorbed by the blood vessel, the portion where the blood vessel is present becomes black to the eyes of an external observer, and the blood vessel can be viewed non-invasively. Blood vessels contain many components, and are broadly classified into plasma such as proteins, lipids, saccharides, and electrolytes, and blood cells such as platelets and red blood cells. Of these blood cells, hemoglobin in red blood cells is further classified into oxyhemoglobin and reduced hemoglobin depending on whether or not they contain oxygen. Of these two types of hemoglobin, reduced hemoglobin absorbs a large amount of light in the near-infrared ray band of 700 to 800 nm, while oxyhemoglobin absorbs a large amount of light in the near-infrared ray band of 900 to 1000 nm. Absorb light. For this reason, in order to non-invasively view the blood vessels in the body, it is preferable that the light emitted to the body be a near-infrared ray.
【０００９】また、請求項２に記載の発明は、請求項１
に記載の血管の視認方法において、赤外線帯域の光線が
７００〜８００ｎｍの近赤外光線である血管の視認方法
である。医師等が血管に注射をする場合に、動脈と静脈
を区別する必要がある。そのために、還元ヘモグロビン
の多い静脈を視認するために、還元ヘモグロビンに吸収
されやすい７００〜８００ｎｍの近赤外光線を身体に照
射することにより、容易に静脈を視認することができ
る。このとき、動脈は身体の他の組織よりは黒く、しか
し、静脈より白く灰色がかって見える。とくに、人間の
裸眼で確認することができる可視光領域は、一般には約
４００〜８００ｎｍの波長範囲であるため、７００〜８
００ｎｍの範囲の近赤外光線を照射することで皮膚表面
を明るくし、ヘモグロビンの吸収により動脈・静脈のい
ずれの血管部分も周囲と比較して黒く見えることにな
る。さらに、近赤外光線により照射部分が温められ血管
中の血液の流れがよくなり、血管が太くなるために、血
管の視認がより一層容易になる。The invention described in claim 2 is the first invention.
The method for visually recognizing a blood vessel according to the above, wherein the light in the infrared band is a near-infrared light of 700 to 800 nm. When a doctor or the like injects a blood vessel, it is necessary to distinguish between an artery and a vein. Therefore, the veins can be easily viewed by irradiating the body with near-infrared rays having a wavelength of 700 to 800 nm, which are easily absorbed by reduced hemoglobin, in order to view the veins rich in reduced hemoglobin. At this time, the arteries appear blacker than the rest of the body, but appear whiter and grayer than the veins. In particular, the visible light range that can be confirmed with the naked eye of a human is generally in the wavelength range of about 400 to 800 nm,
By irradiating near-infrared rays in the range of 00 nm, the skin surface is brightened, and due to the absorption of hemoglobin, any blood vessel portion of the artery or vein looks blacker than the surroundings. Furthermore, the irradiated part is warmed by the near-infrared ray, the blood flow in the blood vessel is improved, and the blood vessel becomes thicker, so that the visual recognition of the blood vessel is further facilitated.
【００１０】また、請求項３に記載の発明は、身体中の
血管を視認するための赤外線帯域の光線を照射する血管
の視認装置において、７００〜８００ｎｍの近赤外光線
を照射する血管の視認装置である。血管の視認装置は、
１つは７００〜８００ｎｍの近赤外光線を照射す特定波
長の光線を放射する発光ダイオードを含み、特定波長の
光線を放射する。さらに、この血管の視認装置は少なく
とも、この特定波長の近赤外光線を伝導するグラスファ
イバーと身体に照射するプローブから構成されている。
近赤外光線は、Ｇａ−Ａｓ系、Ｇａ−Ｐ系、ＹＡＧ系の
半導体レーザーダイオードにより作り出すことができ
る。 血管のためにこの装置は、より長く持続する近赤
外レーザー光パルスを作り出すレーザーシステムを備え
ることができるう。選択されたレーザー装置のパルス持
続時間或いはパワー出力が、個々に不十分であるなら
ば、多数のＬＤからの光パルスが組み合わせることによ
り適当な持続時間や出力を得ることができる。プローブ
先端から照射される近赤外光線は、適当な大きさに広げ
る必要があるため、プローブ先端にレンズを設けて近赤
外光線を広げて照射する。また、皮膚／表皮の境界下方
の血管に到達することができる。到達深度は近赤外光線
の強さによるが、３０ｃｍの距離において３〜１０ｍｍ
の深度に達することができる。しかし、近赤外光線は小
さい細胞を気化させないように低い強度で、しかし周囲
の組織に対するダメージを最小にしつつ、変性点への熱
拡散により血管を加熱するのに十分な長さだけ放射され
なければならない。また、血管の視認装置は、近赤外光
線を伝達するプローブを長くすることにより、近赤外光
線を放射するプローブのみを自由に使用することができ
る。血管をさけて手術する場合に医師等の頭にプローブ
のみを付けることにより、医師等が近赤外光線の照射部
位を選択し、治療を行うことができる。According to a third aspect of the present invention, there is provided a blood vessel visualizing apparatus for irradiating a light beam in an infrared band for visualizing a blood vessel in a body, wherein the blood vessel irradiating a near-infrared light beam having a wavelength of 700 to 800 nm is visually recognized. Device. The blood vessel visual recognition device
One includes a light emitting diode that emits light of a specific wavelength that irradiates near-infrared light of 700-800 nm, and emits light of a specific wavelength. Further, the blood vessel visual recognition device is composed of at least a glass fiber that transmits the near-infrared ray of the specific wavelength and a probe that irradiates the body.
The near-infrared ray can be generated by a Ga-As-based, Ga-P-based, or YAG-based semiconductor laser diode. For blood vessels, the device can be equipped with a laser system that produces longer lasting near infrared laser light pulses. If the pulse duration or power output of the selected laser device is individually insufficient, the appropriate duration and output can be obtained by combining light pulses from multiple LDs. Since the near-infrared ray emitted from the probe tip needs to be spread to an appropriate size, a lens is provided at the tip of the probe to spread and emit the near-infrared ray. It can also reach blood vessels below the skin / epidermal boundary. Depth of arrival depends on the intensity of near-infrared rays, but 3 to 10 mm at a distance of 30 cm.
Of depth can be reached. However, near-infrared rays must be emitted at a low intensity so as not to vaporize small cells, but long enough to heat the blood vessels by heat diffusion to the degenerating point, while minimizing damage to surrounding tissue. Must. In addition, the blood vessel visual recognition device can freely use only the probe that emits near-infrared light by lengthening the probe that transmits near-infrared light. By attaching only the probe to the head of a doctor or the like when performing an operation avoiding a blood vessel, the doctor or the like can select a part to be irradiated with near-infrared light and perform treatment.
【００１１】[0011]
【発明の効果】以上説明したように、請求項１に記載の
血管の視認方法では、近赤外光線のもつ優れた生体透過
性・生理情報収集能力によって、身体表面に特定波長の
近赤外光線を照射することにより無侵襲的に血管を直接
視認することができる。これによって、医師等が注射を
勘で行うことがなく、血管の穿刺部位に容易に注射針を
穿刺することができる。また、請求項２に記載の血管の
視認方法では、血液中の特定成分の近赤外光線を照射す
ることにより無侵襲的に血管を直接視認することがで
き、さらに血液中の酸化ヘモグロビンと還元ヘモグロビ
ンの近赤外光線の吸収性に着目することにより動脈と静
脈を容易に区別することができる。さらに、請求項３に
記載の血管の視認装置では、７００〜８００ｎｍの近赤
外光線を照射する血管の視認装置によって、血管を視認
することができる装置を提供することができる。さら
に、動脈と静脈を区別して視認することができる装置を
提供することができる。As described above, according to the method for visually confirming blood vessels according to the first aspect, the near infrared light of a specific wavelength can be applied to the body surface due to the excellent biological permeability and physiological information collecting ability of the near infrared light. By irradiating the light beam, blood vessels can be directly visually recognized in a non-invasive manner. This makes it possible for a doctor or the like to easily puncture the puncture site of a blood vessel without intuitively performing injection. In the blood vessel visualization method according to the second aspect, the blood vessel can be directly visually recognized in a non-invasive manner by irradiating a near-infrared ray of a specific component in the blood, and further, the oxyhemoglobin in the blood and the reduction can be reduced. An artery and a vein can be easily distinguished by paying attention to the near-infrared ray absorption of hemoglobin. Further, in the blood vessel visualization device according to the third aspect, it is possible to provide a device that can visually recognize a blood vessel by using a blood vessel visualization device that emits near-infrared light of 700 to 800 nm. Further, it is possible to provide a device capable of visually distinguishing an artery and a vein.
【図１】図１は、血管の視認装置から近赤外光線を身体
に照射して、身体中の血管を視認する血管の視認方法を
模式的に示した図である。FIG. 1 is a diagram schematically illustrating a method of visually recognizing a blood vessel in which a near-infrared ray is irradiated from a blood vessel visualization device to a body to visually recognize a blood vessel in the body.
【図２】図２は、サーモグラフィ装置による血管の検知
方法を概念的に示す図である。FIG. 2 is a diagram conceptually showing a method of detecting a blood vessel by a thermography device.
１ 血管の視認装置 ２ 近赤外光線発生装置 ３ グラスファイバー ４ プローブ ５ 身体 １１ ミラー １２ レンズ １３ 赤外センサー １４ 信号処理装置 １５ ディスプレイ Ｌ 近赤外光線 REFERENCE SIGNS LIST 1 blood vessel visual recognition device 2 near infrared ray generator 3 glass fiber 4 probe 5 body 11 mirror 12 lens 13 infrared sensor 14 signal processor 15 display L near infrared ray
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 2F065 AA51 BB05 CC16 DD02 FF42 FF46 GG06 GG08 GG21 JJ01 LL02 LL04 MM26 NN02 SS02 SS13 2G059 AA05 BB12 CC20 EE01 EE02 FF06 GG01 GG02 HH01 JJ17 KK07 PP04 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2F065 AA51 BB05 CC16 DD02 FF42 FF46 GG06 GG08 GG21 JJ01 LL02 LL04 MM26 NN02 SS02 SS13 2G059 AA05 BB12 CC20 EE01 EE02 FF06 GG01 GG02 HH01 JJ17 KK07 PP07
Claims (3)
により、身体中の血管を視認する血管の視認方法。1. A method of visually recognizing a blood vessel in a body by irradiating the body with a light beam in an infrared band.
て、 赤外線帯域の光線が６００〜８００ｎｍの近赤外光線で
あることを特徴とする血管の視認方法。2. The method for visually recognizing a blood vessel according to claim 1, wherein the light in the infrared band is a near-infrared light having a wavelength of 600 to 800 nm.
域の光線を照射する血管の視認装置において、 ６００〜８００ｎｍの近赤外光線を照射することを特徴
とする血管の視認装置。3. An apparatus for visually recognizing a blood vessel, which irradiates a light ray in an infrared band for visually recognizing a blood vessel in a body, wherein the apparatus irradiates a near-infrared ray of 600 to 800 nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11125510A JP2000316866A (en) | 1999-05-06 | 1999-05-06 | Recognizing method and recognizing device for blood vessel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11125510A JP2000316866A (en) | 1999-05-06 | 1999-05-06 | Recognizing method and recognizing device for blood vessel |
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| Publication Number | Publication Date |
|---|---|
| JP2000316866A true JP2000316866A (en) | 2000-11-21 |
Family
ID=14911926
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11125510A Pending JP2000316866A (en) | 1999-05-06 | 1999-05-06 | Recognizing method and recognizing device for blood vessel |
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| Country | Link |
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| JP (1) | JP2000316866A (en) |
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