JPH0321208Y2 - - Google Patents
Info
- Publication number
- JPH0321208Y2 JPH0321208Y2 JP1986177795U JP17779586U JPH0321208Y2 JP H0321208 Y2 JPH0321208 Y2 JP H0321208Y2 JP 1986177795 U JP1986177795 U JP 1986177795U JP 17779586 U JP17779586 U JP 17779586U JP H0321208 Y2 JPH0321208 Y2 JP H0321208Y2
- Authority
- JP
- Japan
- Prior art keywords
- blood flow
- tissue surface
- contact
- pressure
- measurement probe
- 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
- 230000017531 blood circulation Effects 0.000 claims description 37
- 238000005259 measurement Methods 0.000 claims description 37
- 239000000523 sample Substances 0.000 claims description 31
- 230000000694 effects Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims 2
- 239000000835 fiber Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 210000000936 intestine Anatomy 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002271 resection Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
Description
【考案の詳細な説明】
［産業上の利用分野］
本考案はレーザドプラ組織表面血流計、特に測
定プローブを組織表面に当接させ、レーザ光によ
り組織表面に存在する毛細血管の血流を測定する
レーザドプラ組織表面血流計に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention is a laser Doppler tissue surface blood flow meter, in particular, a measurement probe is brought into contact with the tissue surface, and the blood flow in the capillaries existing on the tissue surface is measured using laser light. This invention relates to a laser Doppler tissue surface blood flow meter.
［従来の技術］
近年、生体の各部、特に皮膚など組織表面の毛
細血管の血流を測定して生体組織の状態を観察す
ることが行なわれており、例えば、皮膚移植をし
た手術部位の表面における血流を測定して皮膚蘇
生の程度を診断したり、手術中に病巣部位である
腸や脳の組織表面の血流を測定して切除部位の確
定をすること等が行なわれている。[Prior Art] In recent years, the state of living tissue has been observed by measuring the blood flow in capillaries in various parts of the living body, especially on the surface of tissues such as the skin. The degree of skin resuscitation is measured by measuring the blood flow in the tumor, and the blood flow at the tissue surface of the intestine or brain, which is the lesion site, is measured during surgery to determine the resection site.
この血流測定にレーザドプラ組織表面血流計が
用いられ、この血流計は医療分野において将来各
種の診断・治療に応用される装置として期待され
ている。 A laser Doppler tissue surface blood flow meter is used for this blood flow measurement, and this blood flow meter is expected to be a device that will be applied to various diagnostics and treatments in the medical field in the future.
この血流計は測定プローブを例えば皮膚表面に
当接し、その組織表面にレーザ光を照射すること
により行われ、照射フアイバから出力されたレー
ザ光は毛細血管の血流によつてドプラ効果を受け
て反射され、この反射レーザ光は受光フアイバに
て受光される。そして、測定部にてレーザ光が受
けたドプラ効果を測定することにより血流速度等
を演算出力しており、比較的ミクロの次元で組織
表面の血流を検出することができる。 This blood flow meter is performed by bringing a measurement probe into contact with, for example, the skin surface and irradiating the tissue surface with laser light.The laser light output from the irradiation fiber is affected by the Doppler effect due to the blood flow in the capillaries. This reflected laser light is received by a light receiving fiber. Blood flow velocity and the like are calculated and output by measuring the Doppler effect received by the laser beam in the measuring section, making it possible to detect blood flow on the tissue surface on a relatively microscopic level.
［考案が解決しようとする問題点］
しかしながら、前記血流計は測定プローブを測
定者が組織表面に押しつけて接触させることか
ら、この接触圧によつて毛細血管を圧迫して血流
に影響を与え、特に強い力で押しつける場合には
正確な測定値を求めることができない。[Problems to be solved by the invention] However, in the blood flow meter, the measuring probe is pressed against the tissue surface by the measuring person, and this contact pressure compresses the capillaries and affects the blood flow. It is not possible to obtain an accurate measurement value especially when pressing with a strong force.
また、測定者によつて測定プローブの接触圧が
異なることから、測定値にバラツキが生じるとい
う問題があつた。 Furthermore, since the contact pressure of the measurement probe differs depending on the measurer, there is a problem in that measurement values vary.
考案の目的
本考案は前記従来の問題点に鑑みなされたもの
であり、その目的は、組織表面に対する測定プロ
ーブの接触圧の相違によつて生ずる測定値のバラ
ツキをなくして、正確な血流の測定を行うことの
できるレーザドプラ組織表面血流計を提供するこ
とにある。Purpose of the invention The present invention was devised in view of the above-mentioned conventional problems, and its purpose is to eliminate variations in measurement values caused by differences in the contact pressure of the measurement probe against the tissue surface, and to accurately measure blood flow. An object of the present invention is to provide a laser Doppler tissue surface blood flow meter that can perform measurements.
［問題点を解決するための手段］
前記目的を達成するために、本考案は、組織表
面に測定プローブを接触させてレーザ光のドプラ
効果により組織表面の血流を測定するレーザドツ
プラ組織表面血流計において、前記測定プローブ
には組織表面に対する測定プローブの接触圧を検
出する圧力センサを設け、基準圧以下で血流を測
定することを特徴とする。[Means for Solving the Problems] In order to achieve the above object, the present invention provides a laser Doppler tissue surface blood flow method that measures blood flow on the tissue surface using the Doppler effect of laser light by bringing a measurement probe into contact with the tissue surface. The measurement probe is characterized in that the measurement probe is provided with a pressure sensor that detects the contact pressure of the measurement probe against the tissue surface, and the blood flow is measured below a reference pressure.
［作用］
以上の構成によれば、組織表面に当接する測定
プローブの接触圧が検出センサにより検出出力さ
れる。従つて、この接触圧に基づいて測定プロー
ブの当接状態を調整することができ、最適な接触
圧のもとに血流の測定を行うことができる。[Operation] According to the above configuration, the contact pressure of the measurement probe in contact with the tissue surface is detected and output by the detection sensor. Therefore, the contact state of the measurement probe can be adjusted based on this contact pressure, and blood flow can be measured under the optimal contact pressure.
［実施例］
以下、図面に基づいて本考案の好適な実施例を
説明する。[Embodiments] Hereinafter, preferred embodiments of the present invention will be described based on the drawings.
第１図には本発明に係るレーザドプラ組織表面
血流計の第１実施例が示され、第２図には第１実
施例を組織表面に当接した状態が示されている。 FIG. 1 shows a first embodiment of the laser Doppler tissue surface blood flow meter according to the present invention, and FIG. 2 shows the first embodiment in contact with a tissue surface.
図において、血流計本体に接続されているケー
ブル１０に測定プローブ１２が接続され、この測
定プローブ１２の組織接触面には測定レーザ光の
送受作用を行う照射フアイバ１４と受光フアイバ
１６とが配設されている。従つて、測定レーザ光
は照射フアイバ１４から組織表面に照射され、受
光フアイバ１６にてその反射レーザ光を測定部に
供給することにより、血流測定が行われる。 In the figure, a measurement probe 12 is connected to a cable 10 connected to the blood flow meter main body, and an irradiation fiber 14 and a light reception fiber 16 that transmit and receive measurement laser light are arranged on the tissue contact surface of the measurement probe 12. It is set up. Therefore, the measurement laser beam is irradiated onto the tissue surface from the irradiation fiber 14, and the reflected laser beam is supplied to the measurement section by the light receiving fiber 16, thereby performing blood flow measurement.
本考案において特徴的なことは、前記測定プロ
ーブ１２の組織表面に対する接触圧を良好な所定
圧に設定可能としたことであり、このために圧力
センサが設けられる。 A feature of the present invention is that the contact pressure of the measurement probe 12 against the tissue surface can be set to a favorable predetermined pressure, and a pressure sensor is provided for this purpose.
第１実施例では、測定プローブ１２の組織表面
との接触部の外周に輪帯状の圧力センサ１８が設
けられており、この圧力センサ１８は柔軟性のあ
る圧電材料から形成され、例えばポリマー系の圧
電材料で樹脂材料から成るもの、あるいは圧電セ
ラミツク粉末にゴムを加えた複合材から成るもの
を用いる。この他にも、圧力センサとしては半導
体圧力センサ等を用いることが可能である。 In the first embodiment, an annular pressure sensor 18 is provided around the outer periphery of the contact portion of the measurement probe 12 with the tissue surface, and the pressure sensor 18 is made of a flexible piezoelectric material, such as a polymer-based material. A piezoelectric material made of a resin material or a composite material made of piezoelectric ceramic powder and rubber is used. In addition to this, it is possible to use a semiconductor pressure sensor or the like as the pressure sensor.
第２図には前記測定プローブ１２が組織に当接
された状態が示され、このような圧力センサ１８
によれば、接触した組織からの圧力を直接検出す
ることができる。 FIG. 2 shows a state in which the measurement probe 12 is in contact with tissue, and such a pressure sensor 18
According to , pressure from contacting tissue can be directly detected.
第１実施例は以上の構成から成り、例えば測定
プローブ１２を皮膚移植した皮膚組織表面に当接
すると、圧力センサ１８からその接触圧が検出さ
れる。そして、この接触圧は許容される圧力とし
て定められる基準圧と比較され、基準圧以下にあ
るときにはそのまま血流の測定を続行するが、前
記基準圧以上の圧力にて当接しているときには、
このことを表示・警告する。この表示・警告は、
血流計本体に設けた警告ランプあるいはメータに
より行つてもよく、警告ブザーにて知らせるよう
にしてもよい。 The first embodiment has the above-mentioned configuration. For example, when the measurement probe 12 is brought into contact with the surface of the skin tissue to which the skin has been transplanted, the pressure sensor 18 detects the contact pressure. This contact pressure is compared with a reference pressure determined as an allowable pressure, and if it is below the reference pressure, blood flow measurement continues, but if the contact pressure is above the reference pressure,
Display/warn about this. This display/warning is
This may be done by a warning lamp or meter provided on the blood flow meter body, or may be notified by a warning buzzer.
第３図には本考案の第２実施例が示され、第２
実施例は測定プローブに間接的に圧力センサを設
けたことを特徴とする。図において、圧力センサ
２０は接触子２２を介してサンドイツチ状に設け
られ、図ｂに示されるように、外周近傍に４個に
分割して配置する。これによれば、圧力センサ２
０を組織表面に接触させることがないので、圧力
センサ２０の汚れや破損を防止することができ
る。 A second embodiment of the present invention is shown in FIG.
The embodiment is characterized in that the measurement probe is indirectly provided with a pressure sensor. In the figure, the pressure sensor 20 is provided in the shape of a sanderch with contacts 22 interposed therebetween, and as shown in Figure b, the pressure sensor 20 is divided into four pieces and arranged near the outer periphery. According to this, pressure sensor 2
Since the pressure sensor 20 is not brought into contact with the tissue surface, staining and damage to the pressure sensor 20 can be prevented.
また、第４図には本考案の第３実施例が示さ
れ、第３実施例は自動的に所定の接触圧に設定す
ることを特徴とする。図において、第１実施例と
同じ圧力センサ１８が用いられ、この圧力センサ
１８を有する測定プローブ１２にバネ２４を介し
て圧力調整体２６が設けられている。 Further, FIG. 4 shows a third embodiment of the present invention, and the third embodiment is characterized in that the contact pressure is automatically set to a predetermined contact pressure. In the figure, the same pressure sensor 18 as in the first embodiment is used, and a pressure regulator 26 is provided to the measuring probe 12 having this pressure sensor 18 via a spring 24.
そして、この圧力調整体２６には調整ネジ２８
が取付けられており、これにて圧力センサ１８が
所定圧力で組織に接触するように前記バネ２４の
バネ圧を調整している。従つて、圧力調整体２６
を手に持つて組織表面に当接すると、圧力センサ
１８は自動的に所定の圧力で組織表面に接触する
ことになる。 This pressure adjusting body 26 has an adjusting screw 28.
is attached to adjust the spring pressure of the spring 24 so that the pressure sensor 18 comes into contact with the tissue at a predetermined pressure. Therefore, the pressure regulator 26
When held in a hand and brought into contact with a tissue surface, the pressure sensor 18 automatically contacts the tissue surface with a predetermined pressure.
なお、この場合に測定プローブ１２は圧力セン
サを設けずに行うようにしてもよい。 Note that in this case, the measurement probe 12 may be used without providing a pressure sensor.
［考案の効果］
以上説明したように、本考案によれば、測定プ
ローブに接触圧を検出する圧力センサを設けたの
で、組織表面に当接する測定プローブを常に良好
な圧力に設定することができ、プローブによる毛
細血管の圧迫を防止して正確な血流の測定を行う
ことが可能となる。[Effects of the invention] As explained above, according to the invention, since the measurement probe is provided with a pressure sensor that detects the contact pressure, it is possible to always set the measurement probe in contact with the tissue surface to a good pressure. , it becomes possible to prevent capillary blood vessels from being compressed by the probe and perform accurate blood flow measurement.
第１図は本考案に係るレーザドプラ血流計の第
１実施例を示す斜視図、第２図は第１実施例を組
織表面に当接させた状態を示す説明図、第３図は
本考案の第２実施例を示す構成図であり、図ａは
正面図、図ｂは平面図、第４図は本考案の第３実
施例を示す構成図である。
１２……測定プローブ、１４……照射フアイ
バ、１６……受光フアイバ、１８，２０……圧力
センサ、２２……接触子、２６……圧力調整体。
FIG. 1 is a perspective view showing the first embodiment of the laser Doppler blood flow meter according to the present invention, FIG. 2 is an explanatory diagram showing the first embodiment in contact with a tissue surface, and FIG. 3 is a perspective view of the laser Doppler blood flow meter according to the present invention. FIG. 4 is a configuration diagram showing a second embodiment of the present invention, in which FIG. 4A is a front view, FIG. B is a plan view, and FIG. 12... Measurement probe, 14... Irradiation fiber, 16... Light receiving fiber, 18, 20... Pressure sensor, 22... Contact, 26... Pressure adjustment body.
Claims (1)
光のドプラ効果により組織表面の血流を測定す
るレーザドツプラ組織表面血流計において、前
記測定プローブには組織表面に対する測定プロ
ーブの接触圧を検出する圧力センサを設け、基
準圧以下で血流を測定することを特徴とするレ
ーザドプラ組織表面血流計。 (2) 実用新案登録請求の範囲(1)記載の血流計にお
いて、圧力センサは柔軟性のある圧電材料から
形成され組織表面との接触部に設けたことを特
徴とするレーザドプラ組織表面血流計。 (3) 実用新案登録請求の範囲(1)記載の血流計にお
いて、圧力センサは接触子を介して測定プロー
ブに取り付けられたことを特徴とするレーザド
プラ組織表面血流計。 (4) 実用新案登録請求の範囲(1)記載の血流計にお
いて、前記測定プローブを包みかつ測定プロー
ブが押圧力により上下に移動可能な状態で圧力
調整体が設けられ、圧力調整体を組織に当接す
ることにより所定圧で測定プローブを組織表面
に接触させることを特徴とするレーザドプラ組
織表面血流計。[Claims for Utility Model Registration] (1) In a laser Doppler tissue surface blood flow meter that measures blood flow on the tissue surface using the Doppler effect of laser light by bringing a measurement probe into contact with the tissue surface, the measurement probe has a A laser Doppler tissue surface blood flow meter characterized in that it is equipped with a pressure sensor that detects the contact pressure of a measurement probe and measures blood flow below a reference pressure. (2) In the blood flow meter described in claim (1) of the utility model registration, the pressure sensor is formed of a flexible piezoelectric material and is provided at a portion in contact with the tissue surface. Total. (3) A laser Doppler tissue surface blood flow meter according to claim (1), characterized in that the pressure sensor is attached to the measurement probe via a contact. (4) In the blood flow meter described in claim (1) of the utility model registration, a pressure regulating body is provided in a state that wraps the measuring probe and allows the measuring probe to move up and down by a pressing force, and the pressure regulating body is arranged in a tissue. A laser Doppler tissue surface blood flow meter characterized in that a measurement probe is brought into contact with a tissue surface at a predetermined pressure by contacting with the tissue surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986177795U JPH0321208Y2 (en) | 1986-11-19 | 1986-11-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986177795U JPH0321208Y2 (en) | 1986-11-19 | 1986-11-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6384207U JPS6384207U (en) | 1988-06-02 |
| JPH0321208Y2 true JPH0321208Y2 (en) | 1991-05-09 |
Family
ID=31119331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986177795U Expired JPH0321208Y2 (en) | 1986-11-19 | 1986-11-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0321208Y2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015162924A1 (en) * | 2014-04-23 | 2015-10-29 | 京セラ株式会社 | Measuring device, measuring system, measuring method, and electronic device comprising measuring device |
| JP2016047120A (en) * | 2014-08-27 | 2016-04-07 | 京セラ株式会社 | Measurement device and measurement method |
| JP2016047111A (en) * | 2014-08-27 | 2016-04-07 | 京セラ株式会社 | Measurement device and measurement method |
| WO2018163785A1 (en) | 2017-03-08 | 2018-09-13 | 京セラ株式会社 | Measurement device and measurement method |
| WO2018163784A1 (en) | 2017-03-08 | 2018-09-13 | 京セラ株式会社 | Measurement device, measurement method, and program |
| US10709344B2 (en) | 2014-05-27 | 2020-07-14 | Kyocera Corporation | Measurement apparatus |
| US10945619B2 (en) | 2014-06-26 | 2021-03-16 | Kyocera Corporation | Measurement apparatus, measurement method, and electronic device provided with measurement apparatus |
| US11666228B2 (en) | 2017-03-08 | 2023-06-06 | Kyocera Corporation | Measuring apparatus, measuring method, and program |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3328035B2 (en) * | 1993-11-30 | 2002-09-24 | 株式会社資生堂 | Probe adapter for laser blood flow meter |
| JP2016067405A (en) * | 2014-09-26 | 2016-05-09 | 京セラ株式会社 | Measuring apparatus, measuring method, and electronic apparatus including measuring apparatus |
| JP2016123817A (en) * | 2015-01-08 | 2016-07-11 | 京セラ株式会社 | Measuring device and measuring method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6054056A (en) * | 1983-09-02 | 1985-03-28 | Nec Corp | Interface circuit of bit data write memory |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5971608U (en) * | 1982-11-08 | 1984-05-15 | 株式会社日立メデイコ | Ultrasonic tomography device |
-
1986
- 1986-11-19 JP JP1986177795U patent/JPH0321208Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6054056A (en) * | 1983-09-02 | 1985-03-28 | Nec Corp | Interface circuit of bit data write memory |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015162924A1 (en) * | 2014-04-23 | 2015-10-29 | 京セラ株式会社 | Measuring device, measuring system, measuring method, and electronic device comprising measuring device |
| US10709344B2 (en) | 2014-05-27 | 2020-07-14 | Kyocera Corporation | Measurement apparatus |
| US10945619B2 (en) | 2014-06-26 | 2021-03-16 | Kyocera Corporation | Measurement apparatus, measurement method, and electronic device provided with measurement apparatus |
| JP2016047120A (en) * | 2014-08-27 | 2016-04-07 | 京セラ株式会社 | Measurement device and measurement method |
| JP2016047111A (en) * | 2014-08-27 | 2016-04-07 | 京セラ株式会社 | Measurement device and measurement method |
| WO2018163785A1 (en) | 2017-03-08 | 2018-09-13 | 京セラ株式会社 | Measurement device and measurement method |
| WO2018163784A1 (en) | 2017-03-08 | 2018-09-13 | 京セラ株式会社 | Measurement device, measurement method, and program |
| US11246516B2 (en) | 2017-03-08 | 2022-02-15 | Kyocera Corporation | Measuring apparatus and measuring method |
| US11666228B2 (en) | 2017-03-08 | 2023-06-06 | Kyocera Corporation | Measuring apparatus, measuring method, and program |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6384207U (en) | 1988-06-02 |
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