Intravenous oxygenator

An intravenous oxygenator for enriching blood with oxygen, said oxygenator having a twisted bundle of fibers allowing through flow of oxygen and carbon dioxide therealong, said fibers being each connected to a gas supply means through a first connection and to a gas evacuation means through a second connection so that oxygen and carbon dioxide are allowed to flow through the fibers from the first connections to the second connections, the fiber bundle being twisted by relative rotation of the first connections of the fibers relative to the second connections of the fibers about a longitudinal axis of the oxygenator, wherein a neighboring bundle of fibers, which is disposed in series with the bundle of fibers along the oxygenator, is twisted in the same direction.

An intravenous oxygenator for insertion into a vein having a bundle of fibers allowing through flow of oxygen and carbon dioxide therealong, said fibers being each connected to a gas supply means through a first connection and to a gas evacuation means through a second connection so that oxygen and carbon dioxide are allowed to flow through the fibers from the first connections to the second connections, said connections being respectively connected to a first and to a second fiber holder and being displaceable along a longitudinal axis of the oxygenator, wherein the fiber holders are sliding bodies that are rotatable relative to one another about the longitudinal axis of the oxygenator, more specifically relative to the central catheter, and that are mounted so as to be displaceable preferably along said axis.

An intravenous oxygenator for insertion into a vein having a bundle of fibers allowing through flow of oxygen and carbon dioxide therealong, said fibers being each connected to a gas supply means through a first connection and to a gas evacuation means through a second connection so that oxygen and carbon dioxide are allowed to flow through the fibers from the first connections to the second connections, said connections being respectively connected to a first and to a second fiber holder and being displaceable along a longitudinal axis of the oxygenator, wherein the fiber holders are mounted so as to be rotatable relative to one another about the longitudinal axis of the oxygenator and to be displaceable preferably along said axis and further comprising a first driver provided on the first fiber holder and a second driver provided on the second fiber holder, said drivers being directed toward each other and allowing rotation of the first fiber holder relative to the second fiber holder at least in one direction of rotation up to a rotation limit only without the second fiber holder being carried along when the two fiber holders are pressed into contact with each other.

An intravenous oxygenator for insertion into a vein having a bundle of fibers allowing through flow of oxygen and carbon dioxide therealong, said fibers being each connected to a gas supply means through a first connection and to a gas evacuation means through a second connection so that oxygen and carbon dioxide are allowed to flow through the fibers from the first connections to the second connections, said connections being respectively connected to a first and to a second fiber holder and being displaceable along a longitudinal axis of the oxygenator, wherein the fiber holders are mounted so as to be rotatable relative to one another about the longitudinal axis of the oxygenator and to be displaceable preferably along said axis and further comprising an abutment device provided on fiber holders for limiting displacement of the connections relative to one another.

An intravenous oxygenator for insertion into a vein having a bundle of fibers allowing through flow of oxygen and carbon dioxide therealong, said fibers being each connected to a gas supply means through a first connection and to a gas evacuation means through a second connection so that oxygen and carbon dioxide are allowed to flow through the fibers from the first connections to the second connections, said connections being respectively connected to a first and to a second fiber holder and being displaceable along a longitudinal axis of the oxygenator, wherein the fiber holders are mounted so as to be rotatable relative to one another about the longitudinal axis of the oxygenator and to be displaceable preferably along said axis and further comprising a spiral guidance means for guiding fiber holders along the longitudinal axis of the oxygenator.

An intravenous oxygenator for insertion into a vein having a bundle of fibers allowing through flow of oxygen and carbon dioxide therealong, said fibers being each connected to a gas supply means through a first connection and to a gas evacuation means through a second connection so that oxygen and carbon dioxide are allowed to flow through the fibers from the first connections to the second connections, said connections being respectively connected to a first and to a second fiber holder and being displaceable along a longitudinal axis of the oxygenator, wherein the fiber holders are mounted so as to be rotatable relative to one another about the longitudinal axis of the oxygenator and to be displaceable preferably along said axis and further comprising a housing with an impermeable sheathing that is deformable in the radial direction in particular.