Experience Crystal-Clear Capillary Imaging ― For Health, Beauty, and Beyond.

PC-Free, Monitor-Ready. Perfect for salons, clinics, and events. GOKO ― 70 Years of Optical Excellence.

PC-Free Simplicity, View-Only Operation:
Just connect to a monitor and start observing ― ideal for exhibitions and in-store demos.
Dual-Mode Observation: Nailfold to Full-Body:
Supports both stand-based and handheld capillaroscopy.
Non-Reflective Technology:
Achieve glare-free imaging for clearer, deeper insights.
Analog Imaging Captures Subtle Color Differences:
Perfect for Spotting Faded or Weakened Capillaries.
Stunning Clarity:
Cystal-clear capillary imaging, with optical ― not digital ― zoom.
1-Second Magnification Change:
Go from overview(145x) to close-up(590x) ― fast and simple.
Cited in Multiple Peer-Reviewed Journals
Trusted in reconstructive and microsurgical research worldwide.
Engineered by GOKO, Precision-Crafted in Japan:
Designed and manufactured with over 70 years of optical expertise.
CE Certified:
Compliant with EN61000-6-2:2005 / EN61000-6-4:2007/A1:2011 standards.

Crystal-Clear Capillary Imaging ― No Expertise Needed

The GOKO Bscan-Z is a dedicated capillaroscope that clearly visualizes capillary condition ― an essential marker for beauty and wellness. Ideal for checking weakened capillaries or general microcirculation, it's widely used in salons, pharmacies, wellness centers, and health events.

* For viewing, saving, and analyzing images on Win PC, iPad, Android, or Mac, visit the GOKO Bscan-ZD product page ― our advanced USB model for deeper insights.

Nailfold capillaries (590×)
Nailfold capillaries (145×)
Capillaries in scalp (560×)
Roots of Hair
Tongue papillae capillaries (150×)
Mole and capillaries (150×)

2-in-1 Versatility: Nailfold and Full-Body Observation in a Single Device

The GOKO Bscan-Z supports both stand-based and handheld observation, allowing you to examine capillaries not only in the nailfold but also across the entire body with stability and clarity.

Stand (Included with GOKO Bscan-Z/ZD)

Designed for nailfold observation, the stand allows precise adjustment in three axes (X, Y, Z).
The finger rest is shaped for easy, stable placement ― even for users with long nails ― and includes GOKO's original camera shake prevention cap.

Movable in X, Y, and Z Directions

Y-axis: Finger rest moves back and forth
X-axis: Finger rest moves side to side (left-right)

Comfortable for Long Nails

Designed to accommodate long fingernails
Easy and stable finger placement

For full-body surface imaging, a handgrip and a non-reflex cap are available as optional accessories for the GOKO Bscan-Z.
These tools ensure comfortable handling and stable, clear imaging.

Camera Handgrip (Optional Accessory for the GOKO Bscan-Z)

Lightweight and ergonomic for all-day use, the grip is optimized for easy holding and operation ― even for long sessions.

Easy Focus and Magnification Control

Adjust both focus and magnification with one hand
Observe blood flow without pressing on the skin

From Overview to Ultra-Zoom ― in Just One Second

Tired of swapping lenses just to change magnification? Losing your observation point in the process?
GOKO makes it simple. You can switch between full view and ultra-zoom in just one second ― no lens change required.
Start with a wide view, zoom in instantly, and keep your focus on the same area ― ideal for consistent, fixed-point observation.

Globally Trusted by Experts

Endorsed by renowned medical societies, GOKO's capillaroscopy systems are relied upon by leading clinicians and researchers worldwide.
Our hardware and software are used together in numerous peer-reviewed medical journals ― demonstrating their scientific value and trusted performance.

Explore medical publications featuring the GOKO Bscan series on our [Downloads] page.

Download List of Medical Papers

Glare-Free Observation with GOKO's Non-Reflective Technology

GOKO's original non-reflex cap minimizes glare and eliminates surface reflections, enabling clear observation of skin capillaries ― without pressing against the observation area.
This ensures a more natural view of blood flow and contributes to accurate analysis.

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

70 Years of Optical Expertise ― From Development to Delivery

GOKO, with 70 years of experience in optics

With over 70 years of experience in optics, GOKO handles every step in-house ― from design and development to manufacturing, customization, and support.
Our capillaroscopes are all made in Japan, ensuring consistent quality and reliability.
Trusted by research institutions and medical professionals alike, GOKO delivers precision you can depend on.

Need to Save or Analyze Images? Explore the USB Model with Flow Analysis Software

GOKO-VIP (Velocity of Images and Pixels)

The GOKO Bscan-Z allows clear capillary observation ― no PC required.
But if you need to save image data or perform more detailed analysis, our USB model, GOKO Bscan-ZD, is the ideal choice.
Compatible with Windows, iPad (Type-C), Mac, and Android, it enables image saving and supports advanced analysis using GOKO's dedicated software.
Software GOKO-VIP allows blood flow velocity analysis, while Software GOKO Measure Plus enables more advanced image processing and analytical functions, including image tiling.

Find the Best GOKO Bscan Model for Your Needs

The GOKO Bscan Series offers three models to match your environment and workflow:

USB-connection

GOKO Bscan-ZD

Connects to Windows, Mac, iPad (Type-C), and Android devices via USB. (GOKO software requires Windows 10 or higher.)

Learn more about GOKO Bscan-ZD

USB-connection（Autoclavable）

GOKO Bscan-ZA

Equipped with an autoclavable cap ― ideal for medical and research settings. Connects to your Win PC, iPad (Type-C models only), Mac, or Android via USB. (GOKO software requires Windows 10 or higher.)

Learn more about GOKO Bscan-ZA

No computer required

GOKO Bscan-Z

No PC needed. Connects directly to a standard monitor ― perfect for salons, pharmacies, and in-store events. Optional USB converter available.

Learn more about GOKO Bscan-Z

Comparison Chart: GOKO Bscan Series

Model	Output	No. of pixels	Magnification (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

Optional USB Converter ― Expand the Possibilities of the PC-Free Model

Although the GOKO Bscan-Z is designed for direct monitor connection without a PC, it can also be used with a computer by adding the optional NTSC-USB 2.0 Converter Set.
This set enables real-time display on your PC at up to 30 fps (uncompressed), and includes a GOKO calibration chart for accurate scaling.
You can perform up to nine types of on-screen measurements ― such as dimensions and angles ― using free measurement software.
Output is in a precise 4:3 format, ensuring sharp and accurate visualization for presentations or documentation.

NTSC-USB2.0 Converter Set
Free measurement software

NTSC-USB2.0 Converter Set

Watch How It Works ― In a Fun Time-Lapse Video

Discover how easy and engaging capillary observation can be with GOKO Bscan-Z.
Our playful time-lapse video walks you through the process of viewing capillaries on a monitor or PC ― from nailfolds to full-body areas.
It's a lighthearted and visual introduction, perfect for beginners, staff training, or in-store presentations.

Custom-Made, Even from Just One Unit

At GOKO, we welcome custom orders ― even for a single unit.
Whether you need a scope for a special body part, ultra-high magnification (up to 1000x), or screen framing as narrow as 1 mm, we've done it.
From clinical needs to research innovations, our team will work closely with you to bring your vision to life.
Tell us what you need ― we're happy to help.

Custom-designed capillaroscope with 1000x magnification
Capillaroscope tailored for long-term monitoring

Explore More Custom Solutions

More Microscopes

Let’s Talk — Discover What GOKO Can Do for You

Got a question or need a quote?
We're here to help.

Capillary scope (No computer required) GOKO Bscan-Z

Crystal-Clear Capillary Imaging ― No Expertise Needed