マイクロスコープ Capillaroscope GOKO Bscan series

Capillaroscope GOKO Bscan series

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    • 720x magnicication capillaroscope: Amazing clarity!
    • Deeper depth of field (latest model)
    • GOKO's unique "non-reflective observation" technique
    • PC, iPad compatible models (USB powered) and monitor direct connection model (no PC required) can be selected
    • Quantification software contributes to medical research and evidence acquisition
    • Both stand and hand-held observation are possible with a single unit!
    • Many medical papers on both hardware and software
    • Quantification software contributes to clinical research, evidence acquisition, and evaluation
    • GOKO, with 70 years of experience in optics, is responsible for the entire process from development, manufacturing, customization, and sales.
    • Can be delivered from Japan to you or the distributor. Contact us.
    • 100% MADE IN JAPAN

     *CE Marked:
    GOKO Bscan-ZD/ZA: EN IEC61000-6-1:2019/EN61000-6-3:2007/A1:2011
    GOKO Bscan-Z: EN61000-6-2:2005/EN61000-6-4:2007/A1:2011

    GOKO Imaging Devices Co., Ltd. is an innovative Japanese manufacturer of optical imaging devices with a 70-year history. We take pride that we develop, manufacture and even customize our products exclusively in Japan. See our historic products which monopolized global market shares.


  • Want to observe capillaries easily and clearly?
    GOKO is the answer!

    In the past, we could only "Guess" the shape and flow of capillaries. GOKO's capillaroscopes have made it possible to "Visualize" them clearly. And GOKO's software even realizes "Analyze". It contributes to medical research and evidence acquisition worldwide.

    Features

    Amazing clarity with 720x magnification!
    Can change magnification without changing lenses.

    The image is amazingly clear. The GOKO Bscan-ZD (USB model) achieves 720x magnification (on a 20-inch monitor). Since it adopts an optical zoom, the image is not pixelated by a digital zoom.

    Sharper blood flow shading and even higher magnification are available with the 2024 update.

    Magnification can be switched immediately between 200x and 720x without changing lenses. This is another reason why GOKO products are highly supported by professionals all over the world.

    Tongue capillaries (Wider view) Tongue capillaries (Wider view)
    Tongue capillaries (Massive zoom) Tongue capillaries (Massive zoom)

    Experience the next level:
    Magnification and color reproducibility have further advanced!

    GOKO offers capillary observation with utmost attention to detail; 2024 update further increases magnification and color reproduction.

    Nailfold capillaries (at lower magnification)

    Previous version

    Nailfold capillaries (at lower magnification)175X [Previous version]
    175X
    right arrow

    New version (Ver.1.1)

    Nailfold capillaries (at lower magnification)200X, upgraded color reproducibility [New version (Ver.1.1)]
    200X, upgraded color reproducibility

    Even at low magnification (200x), it's now easier to recognize each capillary individually, enhancing visibility of blood cells. Blood flow velocity can be captured immediately and the number of minute capillaries can be counted more easily.

    Fine mole (approx. 1 mm in diameter)

    Previous version

    Fine mole (approx. 1 mm in diameter)175X [Previous version]
    175X
    right arrow

    New version (Ver.1.1)

    Fine mole (approx. 1 mm in diameter)200X, upgraded color reproducibility [New version (Ver.1.1)]
    200X, upgraded color reproducibility

    Color reproduction is also improved when moles, hair, and melanin are photographed along with capillaries.
    No mode changes or special settings are required.

    Nailfold capillaries (at higher magnification)

    Previous version

    Nailfold capillaries (at higher magnification)620X [Previous version]
    620X
    right arrow

    New version (Ver.1.1)

    Nailfold capillaries (at higher magnification) 720X, upgraded color reproducibility [New version (Ver.1.1)]
    720X, upgraded color reproducibility

    Improved color reproducibility increases the visibility of red blood cells, making it easier to observe and measure blood flow.


     Capillaries of the back of the lower lip (Massive zoom) Capillaries of the back of the lower lip (Massive zoom)
    Scalp capillaries (Massive zoom) Scalp capillaries (Massive zoom)

    Deeper depth of field!

    "Depth of field" refers to the area in front of and behind the subject that appears to be in focus when the subject is in focus.
    The depth of field at high magnification has been increased by 10% compared to the previous model, and subsequent upgrade has further increased the depth of field at low magnification by 35%, allowing you to observe skin capillaries of the whole body even more vividly.


    2 Ways to use: Both fingertip and full-body observation in one unit!

    Stand (Comes standard with GOKO Bscan ZD/Z)

    For nailfold observation. The stand can be moved in three directions to X, Y, and Z. The finger stand is designed for easy placement of fingers and to protect long fingernails as well. Equipped with a unique "camera shake prevention cap".

    Y-axis movement (back and forth movement of the finger rest) Y-axis movement (back and forth movement of the finger rest)
    X-axis movement (left/right movement of finger rest) X-axis movement (left/right movement of finger rest)
    Even for people with long nails. Even for people with long nails.
    Capillary scope - Friendly design for easy finger placement Friendly design for easy finger placement

    For the observation of whole-body surfaces other than the nailfolds, an optional camera hand grip and non-reflective cap set are available, providing clear images and stable observation.

    Camera Handgrip (Comes standard with GOKO Bscan-ZA)

    For observation of all body surfaces. Designed to be easy to hold and operate.

    Capillary scope - Easy focus and magnification adjustment with one hand. Easy focus and magnification adjustment with one hand
    Blood flow can be observed without putting pressure on the affected area. Blood flow can be observed without putting pressure on the affected area.

    Wasting time changing magnification and adjusting focus?
    With GOKO, the adjustment takes only 1 second!

    Having trouble changing magnification or adjust focus?
    Difficult to find the observation point?
    With GOKO, you can switch between "whole image" and "super magnification" in only one second.
    It contributes to the fixed point of observation because you can first look at the whole image and then super-enlarge it.

    Capillary scope - you can switch between 'whole image' and 'super magnification' in only one second.

    Three types of capillaroscopes to choose!

    GOKO Bscan-Z
    Capillary scope GOKO Bscan-Z
    No computer required

    Images are projected on a dedicated monitor. Ideal for those who do not want to use a PC, or for use in stores or at events.

    GOKO Bscan-ZD
    Capillary scope GOKO Bscan-ZD
    USB-connection

    Images can be projected and saved to your PC with a single USB cable. You can also observe and save images on your iPad or Mac. Please use Windows 10 or higher when using GOKO software. Please use an iPad model with Type-C.

    GOKO Bscan-ZA
    Capillaroscope GOKO Bscan-ZA
    AutoclavableUSB-connection

    A high-pressure steam sterilizable (autoclavable) cap is included as a standard accessory. Easy to use in the medical research field. Images can be projected and saved to your PC with a single USB cable, and can also be observed and saved on an iPad or Mac. Please use an iPad model with Type-C.

    You can choose the model that best suits your needs: GOKO Bscan-ZD for those who want to connect directly to a PC, and GOKO Bscan-Z for those who do not want to use a PC or want to connect to both an analog monitor and a PC.

    ModelOutputNo. of pixelsMagnification (Lower/Higher)
    GOKO Bscan-ZD USB Digital 1.3M 200X, 720X
    GOKO Bscan-ZA USB Digital 1.3M 200X, 720X
    GOKO Bscan-Z NTSC Composite 0.52M 145X, 590X

    Can also be observed and saved on iPad

    With the support of UVC in iPad OS17, you can now connect GOKO's USB capillaroscope models to your Type-C equipped iPad as well to observe and save clear real-time images. USB conversion adapter required. Observation and saving on Mac is also possible. Contact us for supported applications.

    Can be connected to an iPad.

    GOKO's unique "non-reflex observation" technique

    GOKO's unique "non-reflex caps" are available to achieve non-reflection observation of skin capillaries. The cap also reduces pressure on capillaries: Natural flow of blood can be observed.

    Capillary - Using transparent film: With reflection, with contact to observation area
    Using transparent film: With reflection, with contact to observation area
    right arrow
    Capillary - Using the non-reflex cap: No reflection, no-contact to observation area
    Using the non-reflex cap: No reflection, no-contact to observation area

    GOKO, with 70 years of experience in optics, is responsible for the entire process from development, manufacturing, customization, and sales.

    GOKO's capillaroscope series are developed, designed, and manufactured in-house at our own factory adjacent to our headquarters in Kawasaki, Japan. We take full responsibility for the development of our products and also provide personalized after-sales services and supports.

    GOKO, with 70 years of experience in optics

    Can be quantified with the velocity measurement software "GOKO-VIP" (Optional)

    GOKO-VIP software for the measurement of the velocity of the capillaries

    With the software "GOKO-VIP (Velocity of Images and Pixels)", the velocity can be measured and saved as numerical values.

    • Data can be quantified. Numerical values can be used to express the velocity, which was conventionally intuitively judged as "fast" or "slow" by observing the capillaries.
    • Developed by GOKO in response to many requests for the best velocity measurement application for GOKO Bscan-Z.
    • The avi files shoot via the NTSC-USB2.0 converter are to be analyzed.

    We also accept requests for velocity analysis.

    We also accept image analysis requests.

    We can also customize software.

    Utilizing the advantages of developing both the hardware and the software, we also accept requests for software customization.

    The GOKO-VIP is the software to measure the velocity, not the length or angles. The measurement of the length and angles can be easily performed with the free software attached to the recommended option, the NTSC-USB2.0 converter.


    Reliability recognized by international medical societies

    The GOKO Bscan capillaroscope series and the software GOKO-VIP have been used in international medical papers and presentations:

    Examples:

    • A medical paper, "Real-time assessment of free flap capillary circulation using video-capillaroscopy" by Dr. Chihiro Matsui of the Department of Plastic and Reconstructive Surgery at Juntendo University, Tokyo, Japan, was accepted by the medical journal Plastic and Reconstructive Surgery.
    • A medical paper, "Nailfold capillaroscopic abnormalities in angioedema with eosinophilia." has been published in the international medical journal Allergology International. It was written by Dr. Sayaka Tsuzuki, Dr. Toshihiko Komai, and more, of the Department of Allergy and Rheumatology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
    • An oral presentation, "The Effects of Skin Surface Temperature Change on Capillary Blood Flow Using Video-Capillaroscopy" by Dr. Chihiro Matsui, of the Department of Plastic and Reconstructive Surgery at Juntendo University, Tokyo, Japan, was adopted as "Oral presentation Tier1 acceptance, Top 200 abstract" at the American Society of Plastic Surgeons in 2021.

    From Guess to Visualize, and then Analyze!
    Quantification software contributes to clinical research and evidence acquisition

    For users of the USB model, GOKO Bscan-ZD/ZA, three types software are available to meet your needs.
    The free software GOKO Measure offers 9 measurement functions, scale display, text display, and Excel transfer.
    Two types of optional software are as follows:

    Software GOKO-VIP for the velocity measurement

    Software GOKO Measure Plus for image analysis and measurement
    In addition to 23 different measurement functions, it offers a wide variety of image processing such as panoramic shooting and live superposition functions.

    Comparison of software functions

      GOKO Measure
    (Free measurement software)
    GOKO-VIP
    to measure velocity
    GOKO Measure Plus
    for image analysis and measurement
    Capture still image and video
    2D measurement
    (9 tools)

    (23 tools)
    Velocity measurement
    Export to Excel
    Stick-to-edge function
    Advanced image processing
    (Image tiling, Image overlay position, Auto detection, HDR composition, and more.)

    (Example of Image Tiling)

    Image Tiling of Nailfold Images of (Massive zoom)
    Image Tiling of Nailfold Images of (Massive zoom)
    GOKO-VIP for the velocity measurement
    GOKO-VIP for the velocity measurement
    GOKO Measure Plus for advanced image processing / analysis
    GOKO Measure Plus for advanced image processing / analysis

    The PC-free model GOKO Bscan-Z can also be connected to a PC

    NTSC-USB 2.0 Converter set

    The optional NTSC-USB 2.0 Converter set allows for real-time display of GOKO Bscan-Z images on a PC, ensuring a maximum of 30 uncompressed frames per second. Kit also comes with a GOKO special calibration chart. This converter set allows nine types of measurements (dimensions, angle measurements, etc.)
    It provides a clear and precise image that is in an accurate 4:3 format.

    Screenshot which shows how to measure the length of capillaries using optional NTSC-USB 2.0 Converter Set.Free measurement software
    NTSC-USB2.0 Converter SetNTSC-USB2.0 Converter Set

    No driver required; can be used with Zoom and Windows "Camera" applications

    No driver required for GOKO Bscan-ZD/ZA. In addition to using the GOKO software, real-time capillary images can be shared in remote meetings using Zoom, the standard Windows or iPad apps.

    If you wish to use the device on an iPad, please use an iPad with Type-C. If you want to use measurement functions such as flow velocity measurement, we recommend using GOKO software that functions on Windows 10 or higher.

    Real-time blood flow images shared remotely via Zoom application
    Real-time blood flow images shared remotely via Zoom application
    Capillaroscope - Can be connected to an iPad.
    Can be connected to an iPad.

    Easy to set up and get started

    How to observe nailfold capillaries with GOKO Bscan-ZD

    Video explains how to connect to a computer and observe nailfold capillaries.

    How to observe whole-body capillaries with GOKO Bscan-ZD/ZA

    Video explains how to connect to a computer and observe whole-body capillaries.

    How to observe nailfold and whole-body capillaries with GOKO Bscan-Z

    A fun, time-lapse video explains how to observe on a monitor or PC.

    We also customize from one unit

    As a manufacturer that values development, we also accept customization from a single unit. We have a variety of customization achievements, such as observing a special position of body part, increasing the magnification to 2000x, and letting the screen width to be projected with a width of 1mm. Feel free to contact us.

    Custom-made capillaroscope whose magnification is 2000 timesCustom-made capillaroscope whose magnification is 2000 times
    Capillaroscope for a long-term observationCapillaroscope for a long-term observation
    Customization available from 1unit

    More than 3,000 units have been sold!

    Since the launch of the first model in 2006, more than 3,000 units of the GOKO capillaroscope (Bscan) series has been sold.
    The GOKO capillaroscope has been widely and favorably used by many universities, hospitals and companies internationally such as in United States of America,  European Union, Japan, Singapore, South Korea, People's Republic of Bangladesh, Thailand, and many more.

    GOKO capillaroscope is used in various medical studies: plastic surgery, rheumatology, diabetes, COVID-19, and so on.

    The following link shows the part of installation record in Japan including the University of Tokyo, Kyoto University, Osaka University, Keio University, the National Cerebral and Cardiovascular Center, FANCL, Shiseido Japan, Create S.D. 


    Autoclave compatible model available!
    Pursued ease of use in the medical research field.

    Tip cap is autoclavable by high pressure steam sterilization!

    GOKO Bscan-ZA (autoclavable model) pursues for ease of use in the medical research field.
    No need to cover the tip with transparent film, etc. Clear, non-reflective images can be taken.

    The heat-resistant and rust-resistant tip is ideal for skin observation after plastic surgery and microsurgery, such as skin valve reconstruction and breast reconstruction, as well as for observation of capillary regeneration and blood flow velocity in the gingiva.

    Surgical stainless steel SUS316L, which is also used for medical scalpels and scissors, is used in consideration of metal allergies. The recommended number of sterilization cycles is approximately 45. The cap can be overhauled and replaced. Echo probe cover can be used on the main body.

    If you have the USB PC direct connection model "GOKO Bscan-ZD" or the model without PC "GOKO Bscan-Z", you can change the model by modifying the main body part. Please consult us.

    ※The plastic bag, rubber bands, and rubber gloves shown in the example images are not included. We will introduce recommended products upon request.

    6.	Autoclavable capillary scope GOKO Bscan-ZA
  • Sample Movies

    • Scalp capillaries
    • Lip capillaries
    • Nailfold (fingernail) capillaries
    • Tongue capillaries
    • Facial blemishes, melanin and capillaries
    • Skin temperature and capillary flow
    • Sublingual capillaries
    • Foot capillaries
    • Capillaries after bone surgery
    • Sweat from pores in the finger
    • Capillaries of the dorsal skin of a mouse
    • Rat skeletal muscle capillaries
    • Tumor vessels in mice
    • Coronary arteries in beating rat heart
    • Lymphatic vessels of rat
    • Mouse intestinal tract, mesentery, and pedal capillaries
    • Massage and capillary changes

    Sample Images

    • Scalp capillaries (Massive zoom) Scalp capillaries
      (Massive zoom)
    • Lip capillaries (Massive zoom) Lip capillaries
      (Massive zoom)
    • Tongue capillaries (Wider view) Tongue capillaries
      (Wider view)
    • Tongue capillaries (Massive zoom) Tongue capillaries
      (Massive zoom)
    • Nailfold (fingernail) capillaries (Massive zoom) Nailfold (fingernail) capillaries
      (Massive zoom)
    • Facial blemishes, melanin and capillaries (Massive zoom) Facial blemishes, melanin and capillaries
      (Massive zoom)
    • Sulci cutis, Crista cutis 1(Wider view) Sulci cutis, Crista cutis 1
      (Wider view)
    • Sulci cutis, Crista cutis 2(Wider view) Sulci cutis, Crista cutis 2
      (Wider view)
    • Rat skeletal muscle capillaries (Massive zoom) Rat skeletal muscle capillaries
      (Massive zoom)

    CAUTION:

    * Copying, modifying, reproducing, transmitting, etc. the contents on this site, for whatever purpose, is strictly prohibited without our prior written permission, regardless of the method or intent.

    * Requires oil/gel application to the object surface in observing capillaries.

  • Options

    • goko-gmp-top.png
      GOKO Measure Plus Software

      Provides various image analysis functions and two-dimensional measurement functions. Greatly expands the applicability of clear images with GOKO's microscope.

      More information
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      GOKO-VIP software for the measurement of the velocity of the capillaries

      GOKO-VIP software measures the velocity of the capillaries recorded by the capillaroscope GOKO Bscan-Z.

      More information
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      Non-reflex cap for the GOKO Bscan-Z

      Enables "non-reflex" capillary observation of the whole body (patent pending). It does not squeeze the capillaries of the site to be observed.

      More information
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      Non-reflex cap NRC-SA5, autoclavable

      Upgraded to a surgical stainless steel version.

      More information
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      Camera Handgrip

      Enables to hold your microscope in one hand, and adjust the focus with your fingertips. It fits in the hand and reduces camera shake for stable observation.

      More information
    • NTSC-USB2.0 Converter Set
      NTSC-USB 2.0 converter Set

      Used to convert NTSC analog images to uncompressed digital images for real-time display on a computer and saves them as video and still image

      More information
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      Exclusive stand for the observation of small animals

      Robust stand with a flexible arm that enables stable observation of small animals such as mouse and rat.

      More information
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      USB Foot Switch for still image (FS-1USB)

      Enable to release the shutter with your foot when shooting when taking still images. Prevents camera shake and improves the accuracy of the image.

      More information
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      USB Foot Switch for both still image and video(FS-3USB)

      Shutter can be released by foot for both video and still images.

      More information
    • semi-hard-case1.jpg
      Exclusive Semi Hard Case

      Convenient for carrying GOKO's microscope series. You can compactly carry GOKO microscopes in your own bag when you go out or on a business trip. The size is 250 (W) x 155 (H) x 80 (D) mm.

      More information
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      Exclusive carrying case for the GOKO Bscan (Small)

      Smaller shoulder case which is more compact and lightweight

      More information
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      9.7-inch LCD monitor (Black) for the GOKO Bscan-Z

      LCD monitor with optimal color adjustment for capillary image of the GOKO Bscan-Z.

      More information
    • Exclusive carrying case for the GOKO Bscan-Z
      Exclusive carrying case for the GOKO Bscan-Z (Large)

      GOKO Bscan-Z and accessories can be stored in order.

      More information
    • Oil set for the GOKO Bscan series
      Oil set for GOKO Bscan series

      Five sets of oil (15 ml) for the observation of capillaries by the GOKO Bscan series.

      More information
    • Gel set for the GOKO Bscan series
      Gel set for GOKO Bscan series

      Five sets of gel (15 ml) for the observation of capillaries in the scalp by the GOKO Bscan series.

      More information
    • simple_rotate_tilt_1.png
      Simplified rotary tilt table 30 (FS-30)

      Objects can be simply fixed on the table (using micro suction cups), and can be tilted up to 90 degrees for easy observation from the side.

      More information
    • fs200_1_small.png
      Rotary Tilt Table 200(FS-200)

      Micro-suction cups secure objects to the stage. Also ideal for small animal observation such as mice and rats.

      More information
    • XYstage_3.png
      Manual Thin XY Linear Stage with micrometer (LXY-80M)

      Adjustable in increments of 0.01mm. Thin and user-friendly.

      More information
  • Specifications

    GOKO Bscan-ZD (Camera Unit)

    Model GOKO EV-80ZD
    Image Signal CMOS Color Camera approx. 1.3M pixels
    Electronic Shutter Automatic (Can be fixed via the software GOKO Measure)
    Frame Rate 30fps max.
    Focusing Method Adjust by turning the focus ring
    Magnification Lower: approx. 200X, Higher: approx. 720X (on 20-inch monitor)
    Lighting System Direct lighting by high luminosity LED
    Image Output USB 2.0 digital output by USB2.0 (USB Type A Male)
    Power Source DC5V, USB bus power
    Operating Temperature 0~+40℃
    Operating Humidity MAX60%RH (without condensation)
    Dimensions φ45 (external diameter) × 97 (length)mm (except protrusion, without the Focus Cap)
    φ45 (external diameter) ×103 (length)mm (with the Focus Cap)
    Cable Length USB cable 1.5m (USB Type A - USB Micro B)
    Weight 127g (without the cable and the Focus Cap)
    Attachments ① Focus Cap ②Anti-vibration attachment for observing nailfold capillaries ③ Protection Cap ④ USB Cable ⑤ Oil case ⑥ Gel case ⑦ Case for the GOKO Bscan-Z/ZD (Smaller) or Semi Hard Case ⑧ Software GOKO Measure ⑨Manual
    Location of Manufacture Japan

    GOKO Bscan-Z (Camera Unit)

    Model GOKO EV-80Z
    Image Signal NTSC composite video signal
    Electronic Shutter 1/60-1/100,000 second (Automatic)
    Magnification 145× to 590× (on 20-inch monitor)
    In focus with Attachment: 105× and 390×
    Lighting System Direct lighting by high luminosity LED
    Video Output Composite image output (pin jack 75 Ω)
    Power Source DV 5 V, supplied from exclusive adapter
    AC Adapter inlet pressure: AV 100-240 V
    Operating Temperature 0° C to +40° C
    Operating Humidity 35%-60% RH
    Dimensions φ45 (external diameter) × 96 (length) mm (except protrusion, without Attachment)
    φ45 (external diameter) × 106 (length) mm (with Attachment)
    Weight 140 g (without Attachment), Attachment: 10 g
    Attachments 1.Focus cap
    2.AC Adapter
    3.Protection cap
    4.Anti-vibration attachment for observing nailfold capillaries
    5. Composite extension cable for the camera unit
    Location of manufacture Japan

    GOKO Bscan-ZD/Z (Stand Unit)

    Model ST-600Z
    Dimensions Base unit: φ120 mm, camera holder unit: φ58 mm, height: 72.5 mm
    Range of the movement of the Stage Unit 10 mm in a crosswise direction
    Range of the movement of the Camera Holder Unit 10 mm vertically
    Overall height with the Camera Unit 132 mm, except protrusion
    Weight 250 g
    Location of Manufacture Japan

    GOKO Bscan-ZA

    Model GOKO EV-80ZA
    Image Signal CMOS Color Camera approx. 1.3M pixels
    Electronic Shutter Automatic (Can be fixed via the software GOKO Measure)
    Frame Rate 30fps max.
    Focusing Method Adjust by turning the focus ring
    Magnification Lower: approx. 200X, Higher: approx. 720X (on 20-inch monitor)
    Lighting System Direct lighting by high luminosity LED
    Image Output USB 2.0 digital output by USB2.0 (USB Type A Male)
    Power Source DC5V, USB bus power
    Operating Temperature 0~+40℃
    Operating Humidity MAX60%RH (without condensation)
    Dimensions φ46 (not including the grip part)
    The maximum diameter is φ46 for the grip rubber part.
    φ45.1 for the camera hand grip part.
    Total length:107.1mm (not including cable)
    Grip length:approx. 55mm
    Cable Length USB cable 1.5m (USB Type A - USB Micro B)
    Weight 193.1g (including camera body, camera hand grip and autoclave anti-reflex cap)
    Attachments (1) Camera hand grip, (2) NRC-AS5 autoclavable non-reflex cap ×2, (3) Protection cap, (4) USB cable, (5) Oil case, (6) Gel case, (7) Semi-hard case, (8) GOKO Measure, (9) Instruction manual
    Location of Manufacture Japan

    * These products are not medical devices.
    * Specifications, contents, and appearance of the products are subject to change without prior notice.

  • FAQ

    Q. It seems to be in focus immediately, is it auto focus?

    Manual focus. Since each capillary has a different depth of field, autofocusing may not be able to focus on the point where we want to observe at ultra-high magnification. However, GOKO Bscan-ZD can quickly and accurately focus on any of the many capillaries that exist just under the skin. Especially, the depth of field of GOKO Bscan-ZD is 10% longer than that of the previous generation models, which enables us to observe a wide range of capillaries with different depths. In addition, since the magnification to ultra-high magnification is performed optically rather than digitally, very clear capillary images can be obtained. This optical design enables clear observation of the movement of white blood cells even at ultra-high magnification.


    Q. Is all we can do with the GOKO Bscan-ZD/ZA is to observe capillaries?

    As GOKO Bscan-ZD/ZA is directly connected to PC, it is possible to save still images and uncompressed movies by using the standard accessory software "GOKO Measure". "GOKO Measure" has various basic 2D measurement tools.
    We also have another software "GOKO-VIP" which can quantify the flow velocity of the videos of capillaries.
    We also offer the software "GOKO Measure Plus", which is highly functional image processing software.


    Q. Can I observe only nailfolds?

    You could observe not only nailfolds, but also every body parts. By removing the camera from the stand, you could observe all parts of the whole-body surface such as the arm, the scalp, the legs, the tongue, the gums, and so on. In those cases, please use the optional Non-reflection cap set to obtain a clearer image without any reflection.
    Optional Autoclavable non-reflex cap is available for use in clean fields.


    Q. Is the camera heavy? I want to use the camera by hand.

    The weight of the camera is only 127g, which is very light, and the compact size of the camera (97mm in length) makes it easy to use for a long time without getting tired. With the optional Camera handgrip, you can get a very stable image when shooting.


    Q. Does the device require regular maintenance?

    No periodic maintenance is required. The camera uses LEDs as its light source, and in principle, there is no need to replace the lighting.


    Q. Do I need any consumables to observe capillaries?

    Oil and gel is essential for the observation. Contact us for details.


    Q. Are there any body parts where capillaries are easy to be observed? Are there any body parts where capillaries are hard to be observed?

    The body parts where the skin is relatively thin, such as fingertips, can be easily observed. On the other hand, the body part whose keratinous are thick, such as heels, might be difficult to be observed.


    Q. My fingers tremble easily. Isn't it difficult to observe the nailfold capillaries due to camera shake?

    The Anti-vibration cap and the stand unit are GOKO's anti-vibration design. They gently secure the fingers and greatly reduces the tremors of fingers without stopping the movement of capillaries. They are standard accessories.


    Q. What is a Non-reflection cap set?

    Non-reflection cap is an optional cap that enables capillary observation without any reflection in the capillary images. It was uniquely designed by GOKO. It is to be mounted in the tip of the camera body.


    Q. Do I need a special license to use the GOKO Bscan-ZD?

    No. Since it is not a medical device, anyone can use it without qualifications.


    Q. Is it possible to see the capillaries on the scalp?

    Yes. Frontal, parietal, and occipital areas can all be observed. Clear and non-reflective movie can be obtained by using the optional Non-reflex cap set and Camera handgrip. The non-reflex cap has a small diameter that is also suitable for observing the scalp between the hairs.


    Q. Is it possible to observe the capillaries even in the oral cavity?

    Yes. Use the Autoclavable non-reflex cap. Apply transparent toothpaste to the glass surface of the non-reflection cap to observe capillaries in the anterior gingiva, mucosa, and tongue. If you use regular Non-reflex cap, not autoclavable one, use a food-grade plastic wrap film to cover the cap after applying transparent toothpaste to the glass to keep cleaness. We recommend the use of rubber bands to prevent wrinkles in the plastic wrap.


    Q. Does the GOKO Bscan-ZD focus at two magnification: lower and higher magnification?

    Yes. The magnification can be easily changed with the zoom ring.
    At low magnification, it is possible to grasp the overall shape and identify detailed observation points.
    At high magnification, detailed observation of capillaries and blood flow can be easily and clearly performed.


    Q. What is the effect of oil?

    Oil or gel is essential for the observation of the capillaries just below the dermis of the skin. Contact us for further clarification.


    Q. What should I do when I found partial reflection in observing nailfold capillaries?

    When you use the camera with the stand unit, you can avoid partial reflections by bending the tip of your finger slightly downward. When you use the camera as a handheld camera, please use the optional Anti-reflection cap set.


    Q. Is it possible to observe skin texture?

    Yes. You can easily observe skin texture as well by using the attached focus cap without applying oil or gel. The GOKO Bscan-ZD is also widely used for the research on the relation between skin texture and skin capillaries.


    Q. Is it possible to measure the size of capillaries?

    Measurements can be made with the supplied free measurement software "GOKO Measure" and the optional measuring software "GOKO Measure Plus".


    Q. Which finger is commonly used to observe nailfold capillaries?

    Generally, the ring finger of the non-dominant hand is recommended to be observed. It is said that the nailfold skin of the ring finger of the non-dominant hand is the thinnest and thus the capillaries there are easy to be observed. However, choose another finger depending on individual conditions. In some protocols, it is recommended to observe eight fingers except the thumbs.


    Q. Is it possible to observe at another magnification that is different from the standard specification?

    Yes. We accept customization from one unit. Feel free to contact us if you have any special requests such as observing at higher magnification, changing the shape of the scope, or increasing numbers of pixels.


    Q. What are the merits of the GOKO Bscan series?

    1. 720X magnification capillaroscope (GOKO Bscan-ZD/ZA): amazing clarity!
    2. 10% deeper depth of field, compared with the previous model.
    3. GOKO's unique "non-reflective observation" technique.
    4. iPad support: UVC is supported by iPad OS17, and GOKO Bscan-ZD/ZA can be connected to Type-C equipped iPad for observation and storage (USB adapter is required). Contact us for compatible software.
    5. USB-powered. Direct connection to PC with a single cable.(GOKO Bscan-ZD/ZA)
    6. Quantification software contributes to medical research and evidence acquisition.
    7. Standard accessory stand: Adjustable in both XYZ directions, with anti-shake function, and even suitable for people with long nails.
    8. Lightweight: 127g (when used as a handheld, only the camera part is used)
    9. GOKO, with 70 years of experience in optics, is responsible for the entire process from development, manufacturing, customization, and sales.
    10. 100% MADE IN JAPAN

    Q. Tell me about the facilities and applications where it is being used.

    In the medical field, our device is widely known by the terms "capillaroscopy" and "Nailfold Video Capillaroscopy (NVC)," and is used in a wide range of fields, including internal medicine, plastic surgery, orthopedics, dermatology, emergency centers, and rehabilitation departments at university medical schools, affiliated hospitals, and public and private hospitals, as well as pharmacy departments and pharmaceutical companies.
    In the field of health, it is widely used in acupuncture and moxibustion clinics, fitness clubs, health food manufacturers, health appliances, functional water, hydrogen, etc. to confirm the effects of treatments and equipment.
    In the beauty field, the system is used to visualize the effects of cosmetics manufacturers, esthetic salons, and beauty clinics.


    Q. What is the meaning of the term "microcirculation"?

    It refers to the blood circulation in microvasculature, i.e., micro-arteries, capillaries, micro-veins, and arteriovenous anastomoses. Although not all the microcirculation can be observed, the GOKO Bscan series enables us to estimate the body functions and health conditions by observing the microcirculation in every part of the skin surface.


    Q. I would like to observe skin blemishes on my face in addition to the nailfold area.

    Yes. Use the optional Non-reflex cap and Camera handgrip. Apply gel or oil to the glass surface for observation, and you can obtain clear, non-reflective video of blemishes and skin capillaries. Both skin spots, melanin and capillaries can be observed clearly.

    See: https://youtu.be/UVhmB-wBYKg and https://youtu.be/9YUYvgBwkCM

    The mechanism of skin blemishes (an example of senile pigmentation) is due to an imbalance in the production and discharge of melanin in the skin caused by a disturbance in the skin turnover, which is a cyclical function in which new cells produced in the lower part of the epidermis reach the stratum corneum at the top surface and are peeled off as plaque, resulting in an abnormal accumulation of melanin in the epidermis. This is due to the abnormal accumulation of melanin in the epidermis. It is said that where there are many capillaries, factors that stimulate the production of melanin are produced, which activates the spots.