Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

TU Vienna Heart pump with air propulsion

06.07.2009
A tiny heart catheter pump which supports the human heart in critical conditions while pumping has been developed at the Vienna University of Technology (TU Vienna).

The pump may not be larger than five millimetres and no longer than 45 millimetres at a ratio of 1:1. It reaches the heart via a catheter and, placed in the heart valves, helps to pump blood from the heart.

The pump drive which is operated pneumatically is particularly innovative. Construction scientists at the TU Vienna have produced a prototype of a ratio of 2:1 commissioned by heart surgeon and university professor Werner Mohl.

"The aim was to avoid the development of heat which is caused by heart pumps that are driven by an electric motor. The heat which is produced is transferred to the blood. Professor Mohl approached us with a request to construct a pump with pneumatic air propulsion which doesn't have to be cooled", explains project manager and associate professor Margit Gföhler from the Institute for Engineering Design and Logistics Engineering at the TU Vienna.

Assistant professor and project colleague Helmut Mad adds: "The heart catheter pump is intended for temporary bridging after an operation or after a heart attack. It is supposed to be used for a maximum of five to ten days. The pump is powered with compressed air via a tube. Of course, the blood which is transported is hermetically separated from the compressed air. The target capacity should be five litres per minute." With its technical benchmark data, the heart catheter pump is a very challenging activity from a construction point of view. Gföhler: "Given its size, it is difficult to obtain purchased parts and storage" Special manufacturing and production processes which can be very expensive are required."

A second prototype has now been produced from a ceramic in collaboration with the Institute of Materials Science and Technology of the TU Vienna. The project was supported by the FFG (Austrian Research Promotion Agency) with an innovation cheque. Margit Gföhler and Werner Mohl plan to continue their research project and would like to submit it as part of the FWF funding programme BRIDGE.

For enquiries:
Associate professor Dr. Margit Gföhler (BA Engineering)
Institute for Engineering Design and Logistics Engineering
Vienna University of Technology
Getreidemarkt 9, 1060 Vienna
T +43/1/58801 - 30615
F +43/1/58801 - 30699
E margit.gfoehler@tuwien.ac.at
Sender:
TU Vienna - PR and Communication
Operngasse 11/E011, A-1040 Vienna
T +43-1-58801-41027
F +43-1-58801-41093
E pr@tuwien.ac.at

Werner Sommer | idw
Further information:
http://www.tuwien.ac.at/pr
http://www.tuwien.ac.at/index.php?id=8900
http://www.tuwien.ac.at/flash_video/090618herzpumpe/

More articles from Medical Engineering:

nachricht Virtual Reality in Medicine: New Opportunities for Diagnostics and Surgical Planning
07.12.2016 | Universität Basel

nachricht 3-D printed kidney phantoms aid nuclear medicine dosing calibration
06.12.2016 | Society of Nuclear Medicine

All articles from Medical Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Significantly more productivity in USP lasers

In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.

Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...

Im Focus: Shape matters when light meets atom

Mapping the interaction of a single atom with a single photon may inform design of quantum devices

Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...

Im Focus: Novel silicon etching technique crafts 3-D gradient refractive index micro-optics

A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.

Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...

Im Focus: Quantum Particles Form Droplets

In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.

“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...

Im Focus: MADMAX: Max Planck Institute for Physics takes up axion research

The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.

The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ICTM Conference 2017: Production technology for turbomachine manufacturing of the future

16.11.2016 | Event News

Innovation Day Laser Technology – Laser Additive Manufacturing

01.11.2016 | Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

 
Latest News

NTU scientists build new ultrasound device using 3-D printing technology

07.12.2016 | Health and Medicine

The balancing act: An enzyme that links endocytosis to membrane recycling

07.12.2016 | Life Sciences

How to turn white fat brown

07.12.2016 | Health and Medicine

VideoLinks
B2B-VideoLinks
More VideoLinks >>>