Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Gentle diagnosis of esophageal diseases

10.09.2019

10 to 20 percent of people in the western world suffer from a reflux disease in which acid stomach contents flow back into the oesophagus. In order to find out where the causes lie, patients have to undergo a lengthy and not very pleasant examination. A research team from the Leibniz Institute of Photonic Technology (Leibniz IPHT) in Jena is working on a new diagnostic device that will make this procedure faster, more meaningful and less stressful for patients.

In order to find out how the complex interaction of the oesophagus muscles is disturbed, a measuring catheter determines the pressure distribution over the entire length of the oesophagus.


Interferometer to write fiber Bragg gratings into the fiber core

Sven Döring / Leibniz-IPHT


Catheter for oesophagus examination

Leibniz-IPHT

With fiber optic sensors, the scientists from Leibniz IPHT engineer high-resolution catheters that are no thicker than 4 millimeters. This simplifies the application and makes the measurement more comfortable for the patient.

In order to simultaneously measure the pressure at many different points of the esophagus and thus be able to analyze the peristaltic movements, the researchers arrange ten to fifteen fiber-optic "strain gages" — so-called fiber Bragg grating sensors — in an optical fiber.

Different wavelengths of the individual sensors determine at which points the measurements are carried out. Thanks to additional fiber-optic sensors in the area of the stomach and above, the catheter can simultaneously determine and link pressure, pH and bile values. This enables doctors to gain new insights into the causes of diseases.

The catheter is connected to a handy device, so that patients will be able to use it at home for measurements over a longer period of 24 hours and more. This will enable doctors to detect disorders that occur only occasionally.

"We have already reached a relatively high technology readiness level," says fiber researcher and technologist Manfred Rothhardt, who coordinates the project and has been researching fiber-optic sensors at Leibniz IPHT for many years. In two years' time, he and his team plan to present the diagnostic device, which will then be tested on patients for over a year.

For the project entitled Optimo (OPTIcal fiber device for simultaneous manometry, pH-metry and bilimetry in Oesophagus), the research team is working with the companies Jenaer Technische Instrumente (JETI) and Oscomed from Sonneberg as well as with partners from the Italian CNR Institute for Applied Physics in Sesto Fiorentino, the University of Florence and Cecchi Srl, also based there. The German Federal Ministry of Education and Research is funding the research project with approximately 650,000 euros over the next three years as part of the EU "PhotonicSensing" program.

Wissenschaftliche Ansprechpartner:

Manfred Rothhardt​
Leibniz Institute of Photonic Technology, Jena
Department: Fiber Research and Technology
+49 (0) 3641 · 206-213
manfred.rothhardt(a)leibniz-ipht.de

Weitere Informationen:

https://www.leibniz-ipht.de/en/institute/presse/news/detail/speiseroehren-erkran...

Lavinia Meier-Ewert | idw - Informationsdienst Wissenschaft

More articles from Medical Engineering:

nachricht Synapses in 3D: Scientists develop new method to map brain structures
08.11.2019 | Leibniz-Institut für Photonische Technologien e. V.

nachricht The Screw That Dissolves
06.11.2019 | Empa - Eidgenössische Materialprüfungs- und Forschungsanstalt

All articles from Medical Engineering >>>

The most recent press releases about innovation >>>

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

Im Focus: Magnets for the second dimension

If you've ever tried to put several really strong, small cube magnets right next to each other on a magnetic board, you'll know that you just can't do it. What happens is that the magnets always arrange themselves in a column sticking out vertically from the magnetic board. Moreover, it's almost impossible to join several rows of these magnets together to form a flat surface. That's because magnets are dipolar. Equal poles repel each other, with the north pole of one magnet always attaching itself to the south pole of another and vice versa. This explains why they form a column with all the magnets aligned the same way.

Now, scientists at ETH Zurich have managed to create magnetic building blocks in the shape of cubes that - for the first time ever - can be joined together to...

Im Focus: A new quantum data classification protocol brings us nearer to a future 'quantum internet'

The algorithm represents a first step in the automated learning of quantum information networks

Quantum-based communication and computation technologies promise unprecedented applications, such as unconditionally secure communications, ultra-precise...

Im Focus: Distorted Atoms

In two experiments performed at the free-electron laser FLASH in Hamburg a cooperation led by physicists from the Heidelberg Max Planck Institute for Nuclear physics (MPIK) demonstrated strongly-driven nonlinear interaction of ultrashort extreme-ultraviolet (XUV) laser pulses with atoms and ions. The powerful excitation of an electron pair in helium was found to compete with the ultrafast decay, which temporarily may even lead to population inversion. Resonant transitions in doubly charged neon ions were shifted in energy, and observed by XUV-XUV pump-probe transient absorption spectroscopy.

An international team led by physicists from the MPIK reports on new results for efficient two-electron excitations in helium driven by strong and ultrashort...

Im Focus: A Memory Effect at Single-Atom Level

An international research group has observed new quantum properties on an artificial giant atom and has now published its results in the high-ranking journal Nature Physics. The quantum system under investigation apparently has a memory - a new finding that could be used to build a quantum computer.

The research group, consisting of German, Swedish and Indian scientists, has investigated an artificial quantum system and found new properties.

Im Focus: Shedding new light on the charging of lithium-ion batteries

Exposing cathodes to light decreases charge time by a factor of two in lithium-ion batteries.

Researchers at the U.S. Department of Energy's (DOE) Argonne National Laboratory have reported a new mechanism to speed up the charging of lithium-ion...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

High entropy alloys for hot turbines and tireless metal-forming presses

05.11.2019 | Event News

Smart lasers open up new applications and are the “tool of choice” in digitalization

30.10.2019 | Event News

International Symposium on Functional Materials for Electrolysis, Fuel Cells and Metal-Air Batteries

02.10.2019 | Event News

 
Latest News

New efficiency world record for organic solar modules

12.11.2019 | Power and Electrical Engineering

Non-volatile control of magnetic anisotropy through change of electric polarization

12.11.2019 | Physics and Astronomy

Antibiotics: New substances break bacterial resistance

12.11.2019 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>