MPS Micro Precision Systems AG of Biel-Bienne at COMPAMED 2021 in Düsseldorf -- COMPAMED Trade Fair
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MPS Micro Precision Systems AG

Chemin du Long-Champ 95, 2504 Biel-Bienne
Telephone +41 32 34443-00
Fax +41 32 34443-01

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Hall map

COMPAMED 2021 hall map (Hall 14): stand C68

Fairground map

COMPAMED 2021 fairground map: Hall 14

Our range of products

Product categories

  • 07  Microtechnology
  • 07.01  Mechatronics
  • 07  Microtechnology
  • 07.02  Micromechanics
  • 07  Microtechnology
  • 07.09  Microassembly

Our products

Product category: Mechatronics, Micromechanics, Microassembly

Implantable actuators

In collaboration with urology and orthopaedic specialists, MPS Microsystems develops implantable actuators, an implant system or implant drive. The screw-nut assembly of these actuators, placed in a moist environment, is made from components and materials already approved for use in active implants, to reduce regulatory red tape. The drive system is placed in a dry environment and comprises a motor and reducer gear, the energy source and the electronic control; it is enclosed in a sealed biocompatible titanium shell. The motor torque is transmitted to the screw-nut assembly by a carefully sized coupling.

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Product category: Mechatronics, Microassembly

Heart pump

In collaboration with its customer, MPS Microsystems is working on a hydraulic system that ensures the pumping function of an artificial heart. Through the selection of suitable materials, perfect surface finishes and a complex, micrometer-precise geometry, this pump system is able to reproduce the natural heartbeat. The system is designed for approximately 230 million pulsating cycles, which corresponds to a service life of about 5 years.

Part of the components are assembled by material pairing and shrinkage to ensure perfect dimensional accuracy. The bonded joints of this heart pump (PEEK/aluminum and PEEK/steel) are made on plasma-prepared surfaces, which ensures the high requirements and reproducibility over time.

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Product category: Micromechanics, Microassembly

Implantable pump

MPS Microsystems has developed an implantable peristaltic pump with variable delivery based on customer specifications. Among other things, this programmable pump administers painkillers via a catheter directly into the patient's cerebrospinal fluid space. It consists of three arms, each with a titanium ball bearing in the tip. This keeps friction as low as possible when the pump rotates. Dosing accuracy is ensured, among other things, by a pressure spring that applies precisely the force required to close the flexible peristaltic tube connected to the catheter. The permanent guarantee of uniform pressure force and low friction is ensured by high individual part quality and careful assembly of the components in ISO Class 7 clean rooms. Torque, spring stiffness and geometry of the assembly are 100% controlled.

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Product category: Mechatronics, Micromechanics


Placing pedicle screws or other implants in the spine requires procedures of extreme precision. To reduce the risk of human error and further develop minimally invasive microsurgical techniques, a company has developed a new surgical procedure using a miniature hexapod. MPS Microsystems was contracted to design and manufacture the unique microrobot. The Hexapod is the smallest of its kind on the market, measuring 50 mm in diameter, 80 mm in height and weighing 330 grams. The unique structure of the miniature Hexapod consists of 6 linear actuators.

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About us

Company portrait

MPS Micro Precision Systems AG is a Swiss company founded in 1936 under the name of RMB (Roulements Miniatures Bienne SA). With our expertise in the field of linear ball bearings and miniature ball screws, as well as our diverse skills in development, machining and assembly, we develop customised products and solutions characterised by reliability, a high level of precision and small dimensions. The demanding markets that MPS serves are mainly medical, including orthopaedics in particular, as well as watchmaking, automation, aerospace, science and optics. In addition, we can draw on the expertise of our parent company, FAULHABER Group, when it comes to electrical drive systems.
The MPS Micro Precision Systems AG employs a total of 400 highly qualified employees and has 3 locations that are perfectly suited to our requirements. The markets are spread over 4 units: MPS Microsystems, MPS Watch, MPS Décolletage and MPS Precimed.