A 2-ways-to-use capillaroscope to observe skin capillaries of WHOLE body
GOKO Bscan-Z is capillaroscope that is designed and manufactured by GOKO, an innovative Japanese manufacturer specializing in optical imaging equipment since 1953. See its amazing clarity and experience the difference.
(1) Nail fold capillaroscopy using dedicated stand unit
(2) Whole body capillary observation as "Handheld capillaroscope"
Amazing clarity and higher contrast!
GOKO's optical innovation achieves greater clarity and higher contrast to enable the observation of flow of white corpuscles in capillaries. Even after the launch of GOKO Bscan-Z, the third model of GOKO Bscan series, we continue to work on improvement by incorporating customer feedback.
※Image above：Previous Image below：Current
The GOKO Bscan-Z greatly reduces vibrations of fingers with the improved stage unit and anti-vibration attachment (standard accessory). It improves work efficiency of taking photographs or observing of circulation in the capillaries as well.
Optical zoom provides clear images. No need to change lenses!
The GOKO Bscan-Z adopts optical zoom which provides clearer images even in ultra-high magnification. Moreover, you can easily change magnification from lower magnification (145X) to ultra-high magnification (590X) without changing lenses simply rotating the ring.
Gives sharper and clearer images of even red capsules.
Outstanding optical design of GOKO Bscan-Z provides top-class clear image of capillaries. Blood flow is clearly observed even the movement of red cells. Even ultra-magnified images are very clear because the zoom is not digital, but optical.
The usability of the exclusive stand has been greatly improved!
Exclusive stand can be moved in all directions, X-axis direction, Y-axis direction and Z-axis direction. The preparation time for observation has been greatly shortened, and work efficiency has been greatly improved.
X-axis movement - moving the finger table to the left and right
Y-axis movement - moving the finger table back and forth
Z-axis movement - moving the camera up and down
Furthermore, improvements have been made so that users with long nails can observe their nailfold capillaries without damaging the long nails.
The robustness of the stand is a very important factor during ultra-magnification observation.
Extremely light and compact!
The compact and portable camera unit of the GOKO Bscan-Z is only 150 g, which enables single-handed operation for long periods of time without stress. It also solves problems such as "capillaries at the observation site are pushed by the weight of the camera and blood flow stops."
Make the whole-body capillary observation "Non-reflex"！
Optional Non-reflex cap realizes non-reflection capillary observation. It does not press capillaries: Natural flow of blood can be observed. Learn more on the Option page. Autovlavable cap is also available.
Easy to set up and get started
Watch the stop-motion video to learn how easily you could use the GOKO Bscan-Z without any special training. It shows how to open, set up, observe using the dedicated stand and optional camera handgrip, and observe on a monitor or PC.
Output method to monitor can be selected
1. Output to Win PC...Recommended for those who save and analyze capillary images. The NTSC-USB 2.0 Converter comes with free viewer software and Simple measurement software. As an option, the software to measure velocity "GOKO-VIP" is also available.
2. Output to 9.7-inch LCD monitor...Recommended for those who do not use a PC or those who do not need to store or analyze the capillary images.
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 accurately displaying and saving images in an aspect ratio of 4:3. It provides a clear and precise image that is in an accurate 4:3 format.
Can be quantified with the velocity measurement software "GOKO-VIP" (Optional)
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.
We also accept image analysis requests. Contact us for details.
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.
Brand-new carrying case is exclusively designed for the GOKO Bscan-Z and its options. The GOKO Bscan-Z and its accessories can be stored in order and carried conveniently.
Abundant options according to application
We have a wide range of options according to your application such as the USB foot switch that allows you to release the shutter with your feet while using both hands freely during shooting and the exclusive stand for the observation of small animals suitable for observing the capillaries of mesentery of mice rats, and the capillaries of the toenails.
Received the "Kawasaki Monozukuri Brand" certification.
The "GOKO Bscan-Z" received the "Kawasaki Monozukuri Brand (Kawasaki Manufacturing Brand)" certification.
What is Kawasaki Manufacturing Brand? The Kawasaki Monodukuri Brand Program identifies products and technologies manufactured in Kawasaki Japan as being superior in terms of originality, innovativeness, quality-control measures, sales performance, future potential, and contribution to society.
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.
Take measures to prevent COVID-19 infection.
To prevent the spread of coronavirus infections, we recommend the use of disposable cut cotton for laying on a dedicated stand that comes into contact with fingers and a disinfection sheet to keep the stand clean. Feel free to contact us for details.
Introduction of Installation Record
Since the launch of the first model in 2006, the GOKO Bscan series has been used by many universities and companies in Japan and overseas such as The University of Tokyo, Kyoto University, Osaka University, Keio University, the National Cerebral and Cardiovascular Center, FANCL, Shiseido Japan, Create S.D.
From basic medical research to clinical practice at universities, hospitals, and pharmaceutical manufacturers (almost all medical fields including internal medicine, cardiology, dermatology, plastic surgery, dentistry, and pharmaceuticals).
As a Nailfold Video Capillaroscopy (NVC/NFC) to observe/research autoimmune rheumatic diseases such as systemic scleroderma, connective tissue disease, or Raynaud phenomenon.
As a demonstration device for observe/research and dissertation that is related to thermal burns, periodontal disease, diabetes, presymptomatic, flap formation, pressure ulcer, etc.
As testing equipment for R & D and clinical trials.
For observation of mesenteric capillaries in experimental animals such as mice and rats.
Nail fold capillaries
Tongue Papillae Capillaries
Oral Mucosal Capillaries (Labial Microvascular)
Blood Vessels in Gum
Health and Wellness／Beauty and Cosmetics
Health centers, health insurance associations, pharmacies, fitness clubs, sports gym, nutrition research institutions, bioenvironmental research institutions, supplement and health food manufacturers and retailers, etc.
Research departments and stores of cosmetics manufacturers, spa beauty clinics, massage facilities, etc.
For the useful demonstration of the promotion of health-related equipment, hydrogen/carbonated water, and supplements
To demonstrate the effect of sauna, carbon dioxide bath, or fitness club
To observe the change in blood circulation following a massage in fitness and massage centers
To demonstrate the effectiveness of new products for the improvement of skin or scalp care
To observe improvements in blood circulation
As an advisory tool for life style modification at pharmacies and drugstores
Nail fold capillaries
Capillaries in Forearm
Mole and Capillaries
Capillaries in Scalp
Educational facilities, facilities for kids, GMS (general supermarkets, department stores, discount stores, specialty stores, etc.), etc.
To observe skin disease at veterinary clinics and animal medical centers
As capillaroscopy or video capillarosocope in educational facilities
* 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 application to the object surface in observing capillaries.
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.
Non-reflex cap set 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.
Non-reflex cap, autoclavable, φ5mm
Autoclavable cap that enables "non-reflex" capillary observation of the whole body. It does not squeeze the capillaries of the site to be observed.
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.
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
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.
USB Foot Switch
Enable to release the shutter with your foot when shooting.
9.7-inch LCD monitor for the GOKO Bscan-Z
LCD monitor with optimal color adjustment for capillary image of the GOKO Bscan-Z.
Exclusive carrying case for the GOKO Bscan-Z (Small)
Smaller shoulder case which is more compact and lightweight
Exclusive carrying case for the GOKO Bscan-Z (Large)
GOKO Bscan-Z and accessories can be stored in order.
Oil set for GOKO Bscan series
Five sets of oil (15 ml) for the observation of capillaries by 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.
NTSC composite video signal
1/60-1/100,000 second (Automatic)
145× to 590× (on 20-inch monitor) In focus with Attachment: 105× and 390×
Direct lighting by high luminosity LED
Composite image output (pin jack 75 Ω)
DV 5 V, supplied from exclusive adapter AC Adapter inlet pressure: AV 100-240 V
0° C to +40° C
φ45 (external diameter) × 96 (length) mm (except protrusion, without Attachment) φ45 (external diameter) × 106 (length) mm (with Attachment)
140 g (without Attachment), Attachment: 10 g
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
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
Location of Manufacture
* The GOKO Bscan-Z is not a medical device. * Bscan-Z is a registered trademark of GOKO Imaging Devices Co., Ltd.
Specifications, contents, and appearance of the products are subject to change without prior notice.
Q. It seems to be in focus immediately, is it auto focus?
Manual focus. Because the depth position of the capillaries differs from one to another, it would be quite difficult for the auto-focus camera to focus well on the exact point you want to observe specially at ultra-high magnification. GOKO Bscan-Z enables quick and accurate focus on any visible skin capillaries. In addition, very clear capillary images can be obtained since the zooming is performed optically instead of digitally. These optical designs enable clear observation of leukocyte movement even at very high magnification.
Q. Is all we can do with the GOKO Bscan-Z is to observe capillaries?
No. By using the software "GOKO-VIP", you could quantify the velocity. By using the optional NTSC-USB 2.0 converter Set, you could save still images and uncompressed videos. The distance between two points can be measured using free measurement software attached to the converter set.
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.
Q. Is the camera heavy? I want to use the camera by hand.
The camera weighs 140g, which is very light. The size of the camera is as small as 96mm, so there is no burden even if it is used for a long time.
Q. Does the device require regular maintenance?
No regular maintenance is required.
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.
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-Z?
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. You could observe any parts of the scalp: the frontal, parietal, and occipital parts. Clear and non-reflective movie can be obtained by using the optional Non-reflection cap set. If you observe a scalp with a lot of hair, use a smaller caliber cap (5φ) from the cap set.
Q. Is it possible to observe the capillaries even in the oral cavity?
Yes. By applying gel to the glass surface of the anti-reflective cap and covering it with a wrap film, capillaries of the anterior gingiva, mucous membrane, and tongue can be observed. We recommend using rubber bands to prevent wrinkling of the wrap.
Q. Does the GOKO Bscan-Z focus at two magnification: lower and higher magnification?
Yes. When using a stand unit, the low magnification is 145x and the high magnification is 590x. The magnification can be easily changed with the zoom ring.
At lower magnification (145x), it is possible to grasp the shape and density of capillaries and it is easy to determine which point to be enlarged to 590x.
At higher magnification(590x), it is possible to see how the white capsules move and to observe velocity easily and clearly.
(Note) Magnification is converted on 20-inch monitors, so it is to be even larger on monitors larger than 20-inch.
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-Z 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?
Yes. You could measure the size with the free software "IC Measure" included with the optional NTSC-USB2.0 converter set. It is possible to obtain accurate values by calibrating the chart first.
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.