Sterilizable Capillaroscope Now Available

Unmatched clarity for vascular reconstruction, flap, and oral microcirculation research. From GOKO, Japan's optical pioneer with 70+ years of excellence.

Autoclavable Design
High-pressure steam sterilizable tip cap ― ideal for medical and research hygiene standards.
USB & Multi-Device Compatible
Observe and save images on Windows, Mac, and iPad (with Type-C port).
Switch Instantly Between 200x and 720x
Capture fine vascular changes with ultra-clear imaging ― no need to change lenses.
Designed with Surgeons in Mind
Optimized for postoperative microcirculation evaluation in reconstructive procedures.
Supports Oral and Periodontal Research
Visualize gingival blood flow in real time with precision.
Non-Reflective Imaging
GOKO's exclusive optical system eliminates glare for vivid, uniform visuals.
Quantify Blood Flow with GOKO-VIP Software
Unlock clinical insights with powerful analysis tools for velocity and evidence acquisition.
Cited in Multiple Peer-Reviewed Journals
Trusted in reconstructive and microsurgical research worldwide.
One-Second Magnification Switch
Jump between wide-field (200x) and detailed (720x) views with zero workflow interruption.
Deep Depth of Field
Ideal for burn depth studies and dynamic blood flow visualization.
Precision-Crafted in Japan
Designed and manufactured with over 70 years of optical expertise.
CE Compliant
Meets EN IEC61000-6-1:2019 / EN61000-6-3:2007/A1:2011 standards.

Autoclavable Non-Reflex Tip Caps Included

*If you don't require autoclave sterilization, check out the GOKO Bscan-ZD ― the same powerful USB model without the need for steam sterilization.

Designed for Medical Research Environments

Standard set includes two autoclavable, non-reflective tip caps ― ideal for clean, glare-free imaging in clinical settings.
No need to wrap the tip with plastic film.

Engineered for Microsurgery and Postoperative Monitoring

The SUS316L surgical stainless steel tip resists heat and corrosion.
Hypoallergenic and safe for monitoring recovery after microsurgery, flap procedures, and gingival blood flow.

Durable & Replaceable

Usable for approx. 45 autoclave cycles.
Caps are replaceable. An echo probe cover can be used on the main unit ― not required for the tip.

Upgrade Your Existing Model

Using GOKO Bscan-ZD or Bscan-Z?
Simply modify the unit to upgrade to the ZA model. Contact us for details.

Note: The plastic bag, rubber bands, and gloves shown in demo images are not included. Please contact us for recommended accessories.

Astonishing Clarity ― Switch Between 720x and 200x, No Lens Change

Experience stunning optical performance with GOKO's advanced zoom technology―allowing you to switch between 200x and 720x magnification without the hassle of changing lenses.

In addition, a click-stop mechanism has been added at 200x (low magnification side) to prevent unintentional changes in magnification. (Effective from July 2025)

With crystal-clear visualization of microcapillaries and ultra-fine blood flow, the 2024 upgrade offers even sharper contrast and enhanced magnification.

Trusted by professionals worldwide, GOKO delivers the clarity, ease of use, and precision that advanced research demands.

Tongue capillaries【Wider view 〜 Massive zoom】

Wider view
Massive zoom

Experience the Next Level!

GOKO redefines clarity and detail in microvascular observation. The 2024 update delivers superior magnification and refined color fidelity, making even the most delicate capillary structures visibly sharp and precise.

See details

Nailfold Capillaries (at Lower Magnification)

More Definition, Even at Lower Magnification: At 200x, capillaries are more clearly separated, and the motion of blood cells stands out distinctly. This advancement allows quicker assessment of flow dynamics and easier identification of fine vascular branches.

Previous version
175X
New version (Ver.1.1)
200X, upgraded color reproducibility

Fine Mole (Approx. 1 mm in Diameter)

True-to-Life Color for Comprehensive Skin Observation: Capillaries can now be captured alongside subtle skin features―like moles, melanin, or hair―with natural color expression. No need to switch modes or adjust any settings.

Previous version
175X
New version (Ver.1.1)
200X, upgraded color reproducibility

Nailfold Capillaries (at Higher Magnification)

Improved Visualization of Red Blood Cells: Richer color contrast enhances the visibility of blood cells in motion, providing greater accuracy for both observation and quantitative analysis.

Previous version
620X
New version (Ver.1.1)
720X, upgraded color reproducibility

Globally Trusted by Experts in the Field

Endorsed by renowned medical societies such as the American Society of Plastic Surgeons, 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

Exceptional Depth of Field for Vivid, Layered Imaging of Capillaries and Blood Flow

With improved depth of field―10% deeper at high magnification and 35% deeper at low magnification compared to our previous models―the GOKO Bscan-ZA captures layered capillary structures and microcirculation with greater clarity.

Whether you're assessing subtle variations in blood flow or observing challenging anatomical surfaces, this upgrade enables vivid, high-precision imaging that supports your advanced research needs.

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

Committed to Full-Body Capillary Imaging

Camera Handgrip (Standard with GOKO Bscan-ZA)

A handgrip and two autoclavable non-reflex caps are included with the GOKO Bscan-ZA. These tools ensure comfortable handling and stable, clear imaging.

Camera handgrip: Easy one-hand operation comes standard
Observe without pressing: Ideal for delicate post-surgical areas

Effortless Fixed-Point Observation at the Bedside

Say goodbye to shaky imaging. With GOKO's optional Mobile StandArm, you can effortlessly stabilize the capillaroscope for extended observation ― perfect for bedside monitoring or clinical studies.

Once set, the stand keeps the device steady at a fixed position, significantly reducing hand movement and fatigue. This allows for clear, consistent imaging over time, even in situations where long-term observation is required.

Available as an optional accessory for the GOKO Bscan series.

Explore Mobile Arm Stand

GOKO's Unique Non-Reflective Imaging―Without Halation

GOKO's original non-reflex cap effectively reduces glare and light halation without applying unnecessary pressure on the capillaries―ensuring natural and stable visualization of blood flow.
This contributes to more reliable observations and greater precision in microcirculation analysis.

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

Universal Device Compatibility―Windows, iPad, Mac, and Android

Compatible with Type-C iPads

The GOKO Bscan-ZA is UVC-compliant, making it easy to connect with Windows PCs, Type-C iPads, Macs, and Android devices.
No driver installation required―enabling real-time capillary imaging and image saving across various platforms, whether in labs, clinics, or on the go.

Instant Use with Zoom and Camera Apps ― Perfect for Telemedicine and Remote Imaging

The GOKO Bscan-ZA requires no driver installation.
It works immediately with standard camera apps on Windows and macOS, and enables live image sharing via Zoom ― ideal for telemedicine, remote research, and online presentations.

Real-time blood flow images shared remotely via Zoom application
Compatible with iPad (Type-C), Mac, and Android.

GOKO-VIP: The Smart Way to Quantify Blood Flow

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

Measure and record capillary blood flow as precise numerical data―instantly and effortlessly―with the software GOKO-VIP (Velocity of Images and Pixels),

Say goodbye to guesswork―GOKO-VIP turns subjective impressions like "fast" or "slow" into solid, quantifiable data.
Effortless Operation―Just 3 Easy Steps: No training needed. Just follow three simple steps to start blood flow analysis.
Created by GOKO in response to real-world researcher demands, GOKO-VIP brings advanced flow quantification to the GOKO Bscan series.

GOKO-VIP is specialized for measuring blood flow velocity. For measuring length and angles, or measuring length and angles, please use either GOKO Measure (included with the GOKO Bscan-ZA) or the optional advanced software, GOKO Measure Plus.

Learn more about GOKO-VIP

Professional Velocity Analysis Services Available

Unlock deeper insights―our experts can analyze your recorded data and deliver precise blood flow velocity results. Ideal for research, documentation, or when you need extra support.

Software Customization Available

Since GOKO develops both hardware and software in-house, we can respond flexibly to customization needs.

GOKO's Image Analysis

Built-In and Optional Software ― Tailored to Your Needs

For simple observation or basic measurements like vessel width and length, the included software is all you need―no extra cost.
But if you want to quantify blood flow or tile images for wider analysis, GOKO offers optional paid software to take your research further.

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

Functions	GOKO Measure (Free, Built-in Tool)	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.)

Software Interface and Example:

GOKO-VIP for the velocity measurement
GOKO Measure Plus for advanced image processing / analysis

Image Tiling of Nailfold Capillaries―Even Ultra-Close Views Can Be Stitched

Trusted Worldwide ― Chosen by Leading Institutions and Backed by 70 Years of Optical Expertise

GOKO, with 70 years of experience in optics

GOKO's capillaroscope series are entirely developed, designed, and manufactured in-house in Japan.
This end-to-end production allows us to take full responsibility for product quality and provide personalized after-sales service and support.

Easy to Set Up and Get Started

Connect and start observing capillaries across the body.

Ready for immediate use in both laboratories and clinical settings.

Find the Best GOKO Bscan Model for Your Needs

GOKO offers three models to suit different settings:

USB-connection

GOKO Bscan-ZD

Connect with a single USB cable to display and save images directly on your PC. Also compatible with iPad (Type-C models only), Mac, and Android devices.
(GOKO software requires Windows 10 or higher.)

Learn more about GOKO Bscan-ZD

USB-connection（Autoclavable）

GOKO Bscan-ZA

Includes an autoclavable tip cap as a standard feature―ideal for use in medical and research settings. Easily connects via USB to your Win PC, iPad (Type-C models only), Mac, or Android device for image display and saving. (GOKO software requires Windows 10 or higher.)

Learn more about GOKO Bscan-ZA

No computer required

GOKO Bscan-Z

Displays images on a dedicated monitor―perfect for environments where a PC is not preferred, such as stores, or public events.

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

We Also Customize ― Even from a Single Unit

At GOKO, we welcome customization requests starting from just one unit. As a comprehensive manufacturer handling everything from development to production and and sales, we've created a wide range of custom solutions ― like 1000x ultra-high magnification, scopes for long-term monitoring, and devices that display a precise 1 mm field of view across the full screen.
Tell us what you need ― we're here 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 (Autoclavable) GOKO Bscan-ZA

Autoclavable Non-Reflex Tip Caps Included

Designed for Medical Research Environments