For tests and research on
colorectal cancer, gut microbiota,
calprotectin, etc.,

Raku-Ryu Cup Wide is a subject-friendly stool sample collection sheet designed to prevent contamination from unwanted substances and loss of specimen.
Introductory video Click here
Introductory video Click here

Flushable stool
sample collection sheet

Made of specially designed water-soluble paper that can be flushed away after use.
The sheet folds into a compact shape, convenient for mailing to subjects.

Different packaging options available; please contact us for details.

In use at numerous
research facilities and clinics.

Raku-Ryu Cup Wide has proved popular with researchers and clinicians in Japan and
other countries, and is widely used in research and healthcare facilities,
and in the pharmaceutical, medical tourism, and food industries.

Increasingly sophisticated
toilets are
making stool
collection more complicated.

Conventional flat-sheet sample collectors are often ill-suited to today`s high-tech
toilets and the
increasingly diverse
range of samples
that need to be
collected.

Raku-Ryu Cup
solves all these difficulties.

How Raku-Ryu Cup makes stool
sample collection easier than ever.

Special 3D cutting technique

Product specifications and appearance are subject to change without notice.

Special 3D cutting technique

Product specifications andappearance
are subject to change without notice.

Why research and healthcare
institutions choose
Raku-Ryu Cup

Customer testimonials

Research fellow, Bio venture company
Raku-Ryu Cup prevents samples from becoming mixed with water from the toilet bowl and urine, and makes it easy to collect accurate samples.
Nurse, Hospital Y
With the number of elderly patients increasing, collecting samples has become more difficult recently. But this product makes it easy.

How to use
the Raku-Ryu Cup

Raku-Ryu Cup is easy to fix in place with adhesive tape.
It can be used with all types of toilets, including squat-style, non-flush, and portable toilets.

To place an order or
make an inquiry:

  • go to amazon
  • Please click here
  • go to amazon
  • Please click here

Four reasons why test
subjects and patients like
Raku-Ryu Cup Wide

Stool samples are often collected at home.
The Raku-Ryu Cup makes the process hassle-free for subjects.

Easy sample collection,
hassle-free disposal

Excellent durability; Holds up to 1 kg in weight

Excellent durability; Holds up to 1 kg in weight

Our patented, proprietary technology ensures that the sheet is strong.
Raku-Ryu Cup has been shown in water resistance and pressure test to withstand weights over 1 kg.
(Measured 3 minutes after the sheet was soaked in water)

Reference: Average weight per stool for adults: approx. 300 g

Proven solubility in water certified by testing bodies

Proven solubility in water certified by testing bodies

Like flushable toilet cleaning wipes, the interwoven fibers disintegrate under the force of the water when the toilet is flushed.
The paper used in Raku-Ryu Cup meets the strict demands of European EDANA standards for flushability of materials.

Third-party tests
【 Flushability test 】

Conditions:
φ50 mm pipes

(Japan's standard specifications: φ70–100 mm)
Water capacity: 4 liters (water-efficient toilets)

Our aim is to contribute to preventive care and research
by making precise and secure stool sample collection.

The Raku-Ryu Cup uses our proprietary 3D cutting technique to provide a highly effective
stool sample collection sheet for use with all types of stool samples.
Takahashi Keisei is committed to contributing
to global healthcare, preventive medicine, and medical research.

Place an order or make an inquiry with us:

  • Please click here If you are a general customer who wishes to purchase our product
  • Please click here For research / healthcare institutions
  • go to amazon
  • Please click here For research / healthcare institutions