Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:


Miniaturized Pinch Valve


Pinch valves are operated by squeezing a flexible tube in a part of the valve by either moving a separate squeezing device against the tube or by impinging the squeezing part with an actuator. However, with current state of the art valves it is necessary to manually insert the tube between the squeezing device and the counter bearing which is in most cases rather complicated. Besides this, most of the pinch valves are as well pretty large and cannot be used in miniaturized or highly integrated systems. Thus the secure dosing of liquids that contain cells or other solids is with the currently available valves only possible when using exchangeable pinch valves.<br><br> <strong>Technology</strong><br> HScientist at the Technische Universität Berlin have now developed a pinch valve that overcomes the current disadvantages of the state of the art as it can be integrated into existing dosing systems as inexpensive single use valve.<br><br> It allows dosing very little amounts of liquid in a very fast, precise and highly dynamic way. As the valve is modularly constructed it allows an inexpensive mass production via injection molding, is easily adaptable to various applications and can be automatized mounted. Moreover it is uncomplicated to incorporate the valve into existing dosing systems without great effort. <br><br> For further information please see also the following link: (article in German)

<br><br> <b>Benefits:</b><br> <ul> <li>Injection/ejection also possible under counter pressure</li> <li>Usage of different tube diameters in one valve -> realization as mixing valve possible</li> <li>Valves can directly be flange-mounted or molded </li> <li>Allows fast switching cycles by keeping a very high precision</li> <li>Especially for dosing cell- or solid-containing liquids as there are no cleaning or contamination problems </li> </ul><br> <strong>IP Rights</strong><br> EP and US application with priority on June 2010 <br> <br> <strong>Origin</strong><br> Technische Universität Berlin

Further Information: PDF

ipal GmbH
Phone: +49 (0)30/2125-4820

Dr. Dirk Dantz | TechnologieAllianz e.V.
Further information:

More articles from Technology Offerings:

nachricht Improved ex-vivo expansion of immune cells for use in cell therapy
17.11.2015 | TechnologieAllianz e.V.

nachricht New Enzymes for production of aldehydes – Enzymatic alkene cleavage
13.11.2015 | TechnologieAllianz e.V.

All articles from Technology Offerings >>>

The most recent press releases about innovation >>>

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

Im Focus: Lactate for Brain Energy

Nerve cells cover their high energy demand with glucose and lactate. Scientists of the University of Zurich now provide new support for this. They show for the first time in the intact mouse brain evidence for an exchange of lactate between different brain cells. With this study they were able to confirm a 20-year old hypothesis.

In comparison to other organs, the human brain has the highest energy requirements. The supply of energy for nerve cells and the particular role of lactic acid...

Im Focus: Laser process simulation available as app for first time

In laser material processing, the simulation of processes has made great strides over the past few years. Today, the software can predict relatively well what will happen on the workpiece. Unfortunately, it is also highly complex and requires a lot of computing time. Thanks to clever simplification, experts from Fraunhofer ILT are now able to offer the first-ever simulation software that calculates processes in real time and also runs on tablet computers and smartphones. The fast software enables users to do without expensive experiments and to find optimum process parameters even more effectively.

Before now, the reliable simulation of laser processes was a job for experts. Armed with sophisticated software packages and after many hours on computer...

Im Focus: Quantum Simulation: A Better Understanding of Magnetism

Heidelberg physicists use ultracold atoms to imitate the behaviour of electrons in a solid

Researchers at Heidelberg University have devised a new way to study the phenomenon of magnetism. Using ultracold atoms at near absolute zero, they prepared a...

Im Focus: Climate Change: Warm water is mixing up life in the Arctic

AWI researchers’ unique 15-year observation series reveals how sensitive marine ecosystems in polar regions are to change

The warming of arctic waters in the wake of climate change is likely to produce radical changes in the marine habitats of the High North. This is indicated by...

Im Focus: Nanocarriers may carry new hope for brain cancer therapy

Berkeley Lab researchers develop nanoparticles that can carry therapeutics across the brain blood barrier

Glioblastoma multiforme, a cancer of the brain also known as "octopus tumors" because of the manner in which the cancer cells extend their tendrils into...

All Focus news of the innovation-report >>>



Event News

Fraunhofer’s Urban Futures Conference: 2 days in the city of the future

25.11.2015 | Event News

Gluten oder nicht Gluten? Überempfindlichkeit auf Weizen kann unterschiedliche Ursachen haben

17.11.2015 | Event News

Art Collection Deutsche Börse zeigt Ausstellung „Traces of Disorder“

21.10.2015 | Event News

Latest News

Fraunhofer’s Urban Futures Conference: 2 days in the city of the future

25.11.2015 | Event News

NASA's Operation IceBridge completes twin polar campaigns

25.11.2015 | Earth Sciences

NASA plans twin sounding rocket launches over Norway this winter

25.11.2015 | Physics and Astronomy

More VideoLinks >>>