Eth Zurich

Unversität Zürich

Universität Zürich, Prorektorat Forschung

University of Zurich Prorektorat Forschung

Pierre-Alain Clavien

Philipp Rudolf Von Rohr

Rolf Graf

Dilmurodjon Eshmuminov

Wolfgang Moritz

Jens Kelm

Martin Schuler

Philipp Dutkowski

Xavier Muller

Lucia Bautista Borrego

Max Leo Hefti

Martin Jörg Schuler

Dustin Becker

Brian Burg

Simon Philip Hoerstrup

A perfusion loop assembly for ex vivo liver perfusion includes a pump providing perfusion fluid through a line branching at a branching point into a first branch line and a second branch line. The first branch line provides a first portion of the perfusion fluid to the hepatic artery of the liver, the first branch line coupled with a gas exchanger, where the first branch line includes a flow rate sensor and/or a pressure sensor. The second branch line provides a second portion of the perfusion fluid to the portal vein of the liver; the second branch line includes a valve for controlling flow of perfusion fluid into the portal vein. The second branch line includes a flow rate sensor and/or a pressure sensor. A liver chamber assembly holds the liver ex vivo, and an outlet line for the perfusion fluid connects the liver chamber assembly and the pump.

Perfusion loop assembly for an ex-vivo liver perfusion and a method for ex-vivo liver perfusion

The present invention relates to a perfusion loop assembly for an ex vivo liver perfusion including: a pump for providing a fluid flow of a perfusion fluid through a first branch line and a second branch line; the first branch line being configured to provide a first portion of the perfusion fluid to the hepatic artery of the liver; the first branch line being coupled with a first gas exchanger, the second branch line being configured to provide a second portion of the perfusion fluid to the portal vein of the liver; the second branch line further including a first valve for controlling the flow of the perfusion fluid into the portal vein of the liver, a liver chamber assembly configured to hold the liver ex vivo, a liver outlet line attached to the vena cava of the ex vivo liver, at least one reservoir connected to the liver outlet and upstream from the pump.

Perfusion loop assembly for an ex-vivo liver perfusion and a liver chamber assembly

A hanging drop plate and a method of cultivating cells or of producing molecular aggregates in at least one liquid volume that adheres to a drop contact area of such a hanging drop plate. The hanging drop plate has a body with a first surface and a second surface that is essentially coplanar to the first surface. The second surface has a drop contact area for adherently receiving a liquid volume. The drop contact area is distinguished from a surrounding area by a relief structure that prevents spreading of the liquid volume on the second surface of the body. The body has at least one conduit that mouths into the drop contact area from the direction of the first surface of the body. A liquid volume is applied to the drop contact area through a communicating conduit. Cells and/or molecules can be introduced into this liquid volume.

Hanging drop plate

Growing community of inventors

Kilchberg, Switzerland

Pierre-Alain Clavien