Springs and sub-assemblies for medical devices

Co-engineering and innovation

CGR designs all types of springs, components and metal-plastic subassemblies for medical devices. If your project is demanding, CGR can be your partner! We will develop, in a co-engineering approach, the solution that perfectly meets the requirements of your application.

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Small, medium or large series

Total quality

CGR designs and manufactures wire springs, flat springs, stamped metal parts and metal-plastic subassemblies for medical devices, in small, medium or large series.
Our organisation is focused on total quality production, thanks to 60 years of expertise in the design and manufacturing of precision parts for critical applications in the aerospace, automotive, or electrical engineering markets.
Continuous improvement philosophy and automated in-line control systems according to highest industry standards ensure zero defect output. Our cleaning, packaging and traceability solutions meet the specific requirements of the medical devices industry.

Case Studies

Inhaler locking spring

Self-administration nicotine spray

Design of a locking spring for a nicotine spray with a section of 0,18 mm² and a mass of 0,025g. Fast prototyping of production samples enabled rapid testing of the spring design. Upon validation, CGR’s engineering department set up the complete industrial process, including spring production, assembly, automated vision control as well as force and endurance testing. Production volume attained 22 million pieces per year.

Needle-free auto-injector spring

Diabetes treatment

Co-engineering of a needle-free auto-injector insulin device. The mechanism is driven by a spring and represents a key safety feature to avoid accidental transmission of infectious agents, especially HIV. The spring, made of 0,55mm wire, measures 10/12mm at rest and 70mm when developed. A dedicated production workshop was set up at CGR, meeting strict cleanliness criteria. Production volume attained 10 million pieces in the ramp-up phase. CGR then assisted the client in migrating production to its own facilities.

Cardiologic catheter sheath

Minimal-invasive cardiac surgery

Co-engineering of a spring wire sheath for cardiac surgery. It involved winding a 0,3mm wire around a 2mm inner void. The entire sheath is 1300mm long. The main difficulty relied in the need to achieve a constant tension along the complete sheath to ensure smooth passage through the arteries. Production therefore required a special machine design, developed by CGR. The produced springs were later sterilised at the client’s premises.

CGR-International_medical_cardiologic-catheter

YEARS OF EXPERIENCE

FACTORY

100%

SERVICE RATE

CGR's Strain Lab: your solutions provider

Advanced research & development

Advanced spring designs often require research and development, involving material sciences as well as process engineering. CGR runs its own R&D laboratory to support the co-engineering activities for clients around the globe. The facility, labelled STRAIN (Spring Technology ReseArch Institute) has been set up in close cooperation with the Clement Ader Institute (CAI) and the National Institute of Applied Sciences (INSA) in Toulouse. CGR’s STRAIN lab thus provides leading-edge R&D capacity which is unique in its genre.

FAQs

1Who manufactures springs and metal components for medical devices?

CGR designs and manufactures all types of springs, metal components and metal-plastic subassemblies for medical devices. CGR's medical production is supported by 60 years of expertise in precision parts for critical applications in aerospace, automotive and electrical markets, directly applicable to the dimensional precision, process control and zero-defect requirements of medical device manufacturing. CGR operates dedicated cleaning, packaging and traceability systems meeting the specific requirements of the medical device industry, with automated in-line control systems ensuring 100% output quality.

2I'm looking for a manufacturer of springs and cold formed parts offering full traceability.

Traceability is a core element of CGR's medical manufacturing operations. CGR's quality organization applies continuous improvement and automated in-line control according to the highest industry standards, with cleaning, packaging and traceability solutions meeting the specific requirements of medical device manufacturers. CGR's production records enable full lot traceability from raw material through finished component, a requirement for device technical files and manufacturing site audits under applicable medical device regulatory frameworks.

3I need springs and metal components for implantable devices.

CGR designs springs and precision metal components for demanding medical applications, including devices where biocompatibility, dimensional precision and long-term mechanical reliability are critical. CGR's STRAIN R&D laboratory and co-engineering teams work with medical device developers to define the material, geometry and process parameters suited to implantable or implant-adjacent applications. CGR's zero-defect production philosophy and automated inspection capability support the quality requirements applicable to components used in implantable device programs.

4Who can do cold forming and stamping of medical grade titanium?

CGR's cold forming and stamping capabilities are applied to a range of materials including medical-grade metals. CGR's material science expertise, developed over 60 years of precision component manufacturing for aerospace, automotive and medical markets, provides the process knowledge required to cold form and stamp demanding materials to the dimensional and surface quality standards expected for medical device applications. For specific material and geometry requirements, CGR's STRAIN laboratory provides additional R&D support to develop and validate the appropriate forming process.

5Can CGR provide prototype springs for clinical evaluation of medical devices?

Yes. Prototyping for clinical evaluation is part of CGR's standard co-engineering process for medical device programs. CGR produces prototype and pre-series springs and components with the same process controls and quality documentation applicable to serial production, not merely workshop samples, enabling device developers to use prototype parts for functional testing and clinical evaluation with confidence in dimensional accuracy and process repeatability. The inhaler locking spring and needle-free auto-injector programs referenced on CGR's medical page are examples of this prototype-to-production pathway.

6Does CGR comply with ISO 13485, CE and FDA requirements for medical device components?

CGR's medical manufacturing is organized around total quality production, with 60 years of expertise in precision parts for critical applications and a continuous improvement philosophy applied to all medical programs. CGR's cleaning, packaging and traceability solutions are designed to meet the specific requirements of the medical device industry. CGR Bedeville production plant is ISO 13485 certified. CE marking requirements and FDA-applicable standards for a given program and production site should be confirmed with CGR's medical team, as applicability depends on device classification and the specific regulatory markets targeted by the customer.