SESSA Japanese SME Business and Innovation Network for Medical Devices

SESSA Japanese SME Business and Innovation Network for Medical Devices SESSA is a Japanese SME business and innovation network for medical devices. Established in 2014, it comprises small and medium manufacturing companies in Japan.

SESSA
Japanese SME Business and
Innovation Network for Medical DevicesSESSA uses the advanced technology of its member companies to supply innovative, high-quality medical devices, to medical device manufacturers worldwide, along with components and subassemblies for medical devices.

Concept

Bringing the World
Innovative Medical Devices

  • Ultraprecision machining technology from small and medium Japanese enterprises
  • Japanese material technology
  • The experience and skills of medical device experts

SESSA Japanese SME Business and Innovation Network for Medical Devices

SESSA is a Japanese SME business and innovation network for medical devices. Established in 2014, it comprises small and medium manufacturing companies in Japan.
The small and medium Japanese companies belonging to SESSA include manufacturing companies that offer internationally competitive ultraprecision processing technology, a company manufacturing excellent materials including the world's strongest stainless steel, and an ODM where medical devices are developed by highly experienced and skilled engineers.

SESSA's Business Model

SESSA works with medical device manufacturers in Japan and overseas, creating medical device businesses in the Japanese and global markets with the outstanding products of small and medium Japanese manufacturers.SESSA's Business ModelSESSA's Business Model

Prototypes

[φ0.9mm EUS-FNB biopsy needle for endoscope]

  • φ0.9mm EUS-FNB biopsy needle for endoscope
  • φ0.9mm EUS-FNB biopsy needle for endoscope
[Aim of SESSA's Prototype]

Pinpoint collection of specimens for histological diagnosis

Side holes with dual sliding blades enable reliable collection of lesions.

Easy operation

Does not require the agitation, stylet insertion or suction that is performed in a standard ultrasonic biopsy.

Easy to insert in and remove from endoscopes

The flexible sheath structure enables the needle to be inserted in and removed from the endoscope more easily.

Straight puncturing

The needle has a highly symmetrical design, enabling it to move in a straight line when puncturing.

[Needle for local injection of submucosa]

Needle for local injection of submucosaThis local injection needle holds mucous membrane with a grip at the end, enabling selective, reliable injection from the submucosa.
It was developed jointly by Dr. Keitaro TASHIRO at Osaka Medical College, Prof. Seiji AOYAGI at Kansai University, and SESSA.

[φ0.7 mm forceps for respiratory endoscopes]

φ0.7 mm forceps for respiratory endoscopesThese biopsy forceps have a finer diameter than any other pair of respiratory endoscope forceps in the world. Made from ultrafine-grained stainless steel with superior strength and ductility, these forceps were developed using SESSA's precision processing and assembly technologies.

Structure

ODM and development

ODM and development contractor for medical devices
nano grains Co., Ltd.

Materials

Material technology for ultraprecision devices
Komatsuseiki kosakusho Co., Ltd.

Processing

Ultrafine precision coil technology
MIKURO SPRING Co., Ltd.
Precision polishing technology for inner surfaces
KYOEI DENKO Co., Ltd.
Precision polishing technology for outer surfaces
MATSUICHI Co., Ltd.
Precision coating technology
MIZOGUCHI Co., Ltd.

Processing and subassembly

Ultra-precision joining technology
KYOSHIN Co., Ltd.

Processing and assembly

Precision processing and assembly technology
Takashima Sangyo Co., Ltd.
ODM and development
ODM and development contractor for medical devices

nano grains Co., Ltd.

ODM and development contractor for medical devices

nano grains responds to the development and manufacture of medical equipment according to customers' requirements.
Customers can also outsource strategic planning, marketing, etc. of medical equipment. Engineers who have extensive experience in medical device development help our customers.nano grains responds to the development and manufacture of medical equipment according to customers' requirements.

Examples of medical devices we design
  • ●Endoscopy instruments
  • ●Forceps for endoscopic surgery
  • ●Other medical devices

General workflow of medical device ODM

Contract development of quantitative evaluation systems
for medical devices

Quantitative evaluation of medical equipment before a medical doctor's evaluation of medical equipment lead to a more correct and deeper understanding of the evaluation contents received from the doctor.
Customers can confirm superior numerical data such as superiority over existing products, and can promote the development of medical devices efficiently.
nano grains is entrusted with the development of an evaluation system for medical devices that are difficult to quantitatively evaluate.

Materials
Material technology for ultraprecision devices

Komatsuseiki kosakusho Co.,Ltd.

nanoSUS®, the world's strongest ultrafine grained stainless steel

"nanoSUS" is a next-generation stainless steel developed by collaborative research with the National Institute for Materials Science and Technology.
"nanoSUS" is a stainless steel in which ultrafine metal grains are produced using proprietary technologies.

  • Conventional stainless steel(Average grain size: 7.0am)Conventional stainless steel(Average grain size: 7.0am)
  • nanoSUS(Average grain size: 0.5 μm and smaller)nanoSUS(Average grain size: 0.5 μm and smaller)

"nanoSUS" improves tensile strength up to 2.5 times and hardness by up to 30% compared with conventional stainless steel. In general, high strength / high hardness stainless steels are poor in processability, but in nanoSUS, it has been confirmed that processability is improved compared to conventional stainless steel.

  • Tensile strength
  • Hardness

Because the chemical composition of "nanoSUS" is not changed from that of conventional stainless steel, it is also easy to use for medical equipment.
Komatsuseiki kosakusho Co., Ltd. is the only manufacturer in the world that has succeeded in mass-producing ultrafine grained stainless steel with an average grain size class of 0.5 μm.

Products available Wires and rods. Standard complied of available products.

  • *Contact us for details on other shapes, dimensions and materials.
  • *nanoSUS is produced under a patent held by the National Institute for Materials Science. JP-4714828-B2
  • *nanoSUS is a registered trademark of Komatsuseiki kosakusho Co., Ltd.
Processing
Ultrafine precision coil technology

MIKURO SPRING Co., Ltd.

Micromachining-based technology for producing ultra-fine springs

MIKURO SPRING Co., Ltd. offers various springs for medical devices, ranging from φ80 μm ultra-fine springs to a coil sheath with an outer diameter of 1 mm and a length of 3 m, to meet the needs of medical device manufacturers.

MIKURO SPRING Co., Ltd. offers various springs for medical devices, ranging from φ80 μm ultra-fine springs to a coil sheath with an outer diameter of 1 mm and a length of 3 m, to meet the needs of medical device manufacturers.

Adding new functions to springs

MIKURO SPRING Co., Ltd. creates new functions for springs by adding new technology to conventional spring processing technology.

  • Springs with a non-circular cross section
    Springs with a non-circular cross sectionMIKURO SPRING Co., Ltd. creates new functions for springs by adding new technology to conventional spring processing technology.
  • Resin coating
    Resin coatingOur technology now enables resin coating to be applied to ultra-fine springs, which provides a new function for protection against electrical currents passing along the spring.
Processing
Precision polishing technology for inner surfaces

KYOEI DENKO Co., Ltd.

Ultra-precision polishing to mirror finish

Our unique ultra-precision polishing technology has achieved a mirror finish on the surfaces of deformed tubes, tapered tubes, and tubes with different diameters, which a difficult or even impossible to polish with conventional technology.
Compared with unpolished or electro-polished tubes, tubes with ultra-precision polished surfaces dramatically reduce turbulent flow in fluids passing through the tubes and reduces risks of cross contamination by drops of fluid from the pipes. Using this tube enables more reliable test results at medial facilities.

Mirror finish can be applied even on flexible tubes

Mirror finish can be applied even on flexible tubesA mirror finish can be applied even on flexible tubes with a discontinuous interior wall at their crests, sides, and trough (material: SUS316L).

Comparison of polished inner surfaces inside the cylinders (material: SUS316L): Our ultraprecision polishing can be applied not only to SUS but to ceramic and titanium tubes.Comparison of polished inner surfaces inside the cylinders (material: SUS316L): Our ultraprecision polishing can be applied not only to SUS but to ceramic and titanium tubes.

Processing
Precision polishing technology for outer surfaces

MATSUICHI Co., Ltd.

Mirror polishing for difficult manufacturing materials

We supply medical mirror polishing parts with outstanding exterior quality and prevention of soiling.
Excellent craftsmanship in external mirror polishing provides the foundation of our work, and we use our collection of quantitative data from proprietary polished surface inspection devices and our own internal training program and qualification system to achieve consistently high quality in our prototypes and mass production of external polishing parts.

  • Mirror polishing of free curved cobalt chromium surfaces

    Mirror polishing of free curved cobalt chromium surfaces

  • Mirror polishing of stainless steel forceps handles

    Mirror polishing of stainless steel forceps handles

Examples of materials that we polish
Titanium, nickel titanium, cobalt chromium, inconel, stainless steel, alumina, zirconia
In-house design and production of quantitative evaluation devices
In-house design and production of quantitative evaluation devices

We design and produce a range of proprietary quantitative evaluation devices such as polished surface inspection devices so that we can provide exactly what you're looking for. We also perform contracted development of various quantitative evaluation devices on request.

In-house qualification system

We have developed our own training program and qualification system. Assessments for our qualification system are performed by methods such as quantification with our polished surface inspection devices to ensure consistently high quality.

Processing
Precision coating technology

MIZOGUCHI Co.,Ltd.

Multifunction coating for medical device parts

MIZOGUCHI Co., Ltd. uses advanced masking technology to create precision coating for extremely small treatment tools.
Our coatings provide a wide range of functions all at once, including insulation, non-adhesive performance, heat resistance, steam resistance, durability, water repellency, hygiene and antibacterial performance.

Distal end of an endoscope
Distal end of an endoscope
Distal end of endoscopic surgical equipment
Distal end of endoscopic surgical equipment

* The above functional coatings are made with coating technology from MIZOGUCHI Co., Ltd.

Our coatings for endoscopic treatment tools and surgical energy devices (forceps, etc.) combine high insulation performance with non-adhesive properties to prevent residue such as tissue or blood. They are used as highly functional products around the world and receive excellent reviews.
We are constantly working to develop a higher caliber of coating technology that is even more suited to the needs to medical device manufacturers.

Processing and subassembly
Ultra-precision joining technology

KYOSHIN Co., Ltd.

Precision Cutting and Joining Technology

High-precision cutting technology enables manufacture of ultra-fine parts. This, combined with our unique Cold Joining technology that uses only plastic deformation without any heat application, realizes joining of these ultra-fine parts with the following improved features over brazing, laser adhesion and other conventional joining methods.Precision Cutting and Joining Technology

  • ●Joining without the adverse effects of heat
  • ●Joining of dissimilar materials
  • ●Joining with flexible parts
  • ●Joining with very little variation in strength
  • ●Watertight joining

Tensile strength

Precision Cutting and Joining Technology

Precision processing and assembly technology
Processing and assembly

Takashima Sangyo Co., Ltd.

There's no machining that we can't do

We perform machining such as cutting, grinding, polishing, laser machining and a variety of other processes for a wide range of hard-to-process industrial materials such as NiTi alloys, tungsten and ceramics. Production volume ranges from prototypes to mass production.There's no machining that we can't doThere's no machining that we can't do

  • Microcut part

    Microcut part

  • Ceramic nozzle and joined metal partCeramic nozzle and joined metal part
  • View through nozzle(inner diameter of smallest inner diameter sample: 5μm)View through nozzle(inner diameter of smallest inner diameter sample: 5μm)
  • NiTi alloy (Nitinol) stent
    NiTi alloy (Nitinol) stent
  • Ordinary laser machining
    The gold marker comes off when force is appliedThe gold marker comes off when force is applied
  • Laser machining by Takashima Sangyo
    The triangle-shaped projections keep the gold marker in placeThe triangle-shaped projections keep the gold marker in place
Production of medical devices with quality control that strictly complies with ISO standards

An assembly inspection in a clean roomAn assembly inspection in a clean room

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