DUALIS – Working towards new milestones

Proof of our capabilities is provided by the two research projects which the Bundesministerium für Bildung und Forschung (Federal Ministry for Education and Research) has entrusted to DUALIS. Together with renowned partners such as the Fraunhofer Institute or the Charité Berlin, we are working on the implementation of innovative concepts in medical technology.

MikroAug - Pressure regulation using an implant

Eye pressure which is too high or too low has serious consequences on human vision and, in the worst cases, can cause blindness. With the partial development of an active implant system using microsystem technology, DUALIS is working on the targeted supply or removal of fluid which can be used to effectively reduce and therefore stabilise the pressure in the inner eye.

The planned micro-fluid system is made up of an intelligent, bio-compatible micro-pump which monitors function, including highly miniaturised control and evaluation technology. The wireless supply of energy is carried out over a telemetry device which allows the battery-operated implant to be charged and controlled contactlessly in practical cycles and ensures an incredibly long product life for the implant without the need for operations to replace it.

An external control device which can be operated by the doctor can set the micropump's rate of operation so that it is dependent on the eye pressure. Due to miniaturisation and innovative construction and bonding technology, the device can be adjusted to the shape of the eye socket and implanted on the eyeball without having any negative effect on eye movement.

With scientific support from the Fraunhofer Research Institution for Modular Solid State Technologies (EMFT), three other companies are taking part in the project alongside DUALIS and focusing on solutions for various key points. The partners for this project are Geuder AG, jvi GmbH and Binder Elektronik. The project will run until the end of September 2015.

CAREFLOW - Innovative blood pump

As part of a development project by the Bundesministerium für Bildung und Forschung (BMBF), the laboratory for bio-fluid mechanics at Charité Berlin, together with the Deutsches Herzzentrum Berlin (DHZB, German Heart Centre in Berlin) and the medical technology firm DUALIS MedTech GmbH, is developing an innovative blood pump designed for cardiac support which is gentle on the blood.

The main goal of the CAREFLOW project is, thanks to the pump concept which is gentle on the blood, that the blood pump should be able to be used for a larger number of patients and counteract shear stress such as damage to the Von Willebrand factor though a rotation speed which is as low as possible. In order to then reach the physiological pressure level of 100 mmHg, the individual pressure stages are operated in series.

The mounting of the rotating components which come into contact with blood is designed so that minimal shearing to the blood occurs and so that it does not get into badly flushed spaces and clot there. In order to do this, magnetic, hydrodynamic and plain bearing concepts are evaluated for their suitability through flow simulations and analysis. Suitable blade profiles, materials and surface textures are also tested.

A further advantage of the CAREFLOW pump is that it can be implanted completely and therefore requires minimal construction. This follows the trend in medical technology for increasingly compact solutions and, at the same time, contributes to the patient's need for a better quality of life. The project will run until August 2015.