A catheter pump having a rotor shaft rotatably arranged in the inner catheter for driving an expandable conveyor element provided at the pump head. The conveyor element is rotatably mounted between a. distal hearing point and a proximal bearing point, wherein the outer catheter has a sleeve section on the distal end thereof surrounding the proximal bearing point, and wherein the proximal bearing point can be moved in the axial direction relative to the sleeve section in order to expand the conveyor element, wherein the proximal bearing point comprises a bearing receiver having a rotational bearing point for a rotary head rotationally fixed to the distal end of the rotor shaft, and a force application point at an axial distance to same for a force application section provided at the distal end of the inner catheter for axially moving the proximal bearing points relative to the sleeve section.

A catheter pump having a rotor shaft rotatably arranged in the inner catheter for driving an expandable conveyor element provided at the pump head. The conveyor element is rotatably mounted between a. distal hearing point and a proximal bearing point, wherein the outer catheter has a sleeve section on the distal end thereof surrounding the proximal bearing point, and wherein the proximal bearing point can be moved in the axial direction relative to the sleeve section in order to expand the conveyor element, wherein the proximal bearing point comprises a bearing receiver having a rotational bearing point for a rotary head rotationally fixed to the distal end of the rotor shaft, and a force application point at an axial distance to same for a force application section provided at the distal end of the inner catheter for axially moving the proximal bearing points relative to the sleeve section.

The present disclosure describes intravascular oxygenation systems and methods with one or more of improved oxygen diffusion flux, improved resistance to bubble formation on the surface of non-porous hollow fibers, and reduced size. The systems and methods include a pneumatic inlet coupled to a pneumatic source that provides a gas containing oxygen at a high pressure. A plurality of hollow fiber membranes (HFM) are in pneumatic communication with the pneumatic inlet to receive the gas containing oxygen and with an outlet to exhaust a partially deoxygenated gas. An electronic controller drives the motor to oscillate the plurality of HFMs to cause a diffusive flux of the gas containing oxygen from the plurality of HFMs into a region of interest of a subject. The electronic controller may drive the motor according to an oscillation pattern, which may include a macro-oscillation with superimposed micro-oscillations.

The present disclosure describes intravascular oxygenation systems and methods with one or more of improved oxygen diffusion flux, improved resistance to bubble formation on the surface of non-porous hollow fibers, and reduced size. The systems and methods include a pneumatic inlet coupled to a pneumatic source that provides a gas containing oxygen at a high pressure. A plurality of hollow fiber membranes (HFM) are in pneumatic communication with the pneumatic inlet to receive the gas containing oxygen and with an outlet to exhaust a partially deoxygenated gas. An electronic controller drives the motor to oscillate the plurality of HFMs to cause a diffusive flux of the gas containing oxygen from the plurality of HFMs into a region of interest of a subject. The electronic controller may drive the motor according to an oscillation pattern, which may include a macro-oscillation with superimposed micro-oscillations.

A catheter for intravascular use has a blood inlet and a blood outlet, and includes a membrane arranged in the catheter in such a way that at least one part of the blood flowing into the catheter via the blood inlet during operation comes into contact with the membrane. The membrane allows an exchange of at least one substance between a carrier medium and the blood. The carrier medium is a carrier fluid in which the substance to be exchanged can be dissolved, and the catheter includes a delivery device that is designed to at least partially compensate for a pressure difference between the blood inlet and the blood outlet during operation. A method for removing at least one substance from venous blood for diagnostic purposes uses a device of this type.

The present invention provides a highly-permeable dense hollow fiber membrane (HFM) for blood oxygenation. A membrane material plays a key role in an oxygenator, which determines the oxygenation efficiency, service life and safety of the oxygenator. The HFM according to the present invention features high permeability. When blood rich in carbon dioxide flows through the oxygenator, the carbon dioxide and oxygen in the blood can be rapidly exchanged, so that the blood can be rapidly updated, and the size of the oxygenator and the blood perfusion volume can be reduced. In addition, the membrane surface of the present invention is hydrophobic and dense, and blood does not directly contact with gas or permeate into a gas pipeline, thus avoiding the problems of protein leakage, permeability reduction and the like. The oxygenator prepared by using the HFM of the present invention can be repeatedly used for a long time.

A catheter for intravascular use has a blood inlet and a blood outlet, and includes a membrane arranged in the catheter in such a way that at least one part of the blood flowing into the catheter via the blood inlet during operation comes into contact with the membrane. The membrane allows an exchange of at least one substance between a carrier medium and the blood. The carrier medium is a carrier fluid in which the substance to be exchanged can be dissolved, and the catheter includes a delivery device that is designed to at least partially compensate for a pressure difference between the blood inlet and the blood outlet during operation. A method for removing at least one substance from venous blood for diagnostic purposes uses a device of this type.

The present disclosure relates to intracorporeal gas exchange systems and methods in conditions associated with hypoxia and hypercarbia. The present disclosure envisages an intracorporeal oxygenation system comprising a blood oxygenator having a blood compartment and a gas compartment. The blood and gas compartments are separated by a gas permeable barrier so as to allow exchange of carbon dioxide in blood in the blood compartment with oxygen in the gas compartment. The system comprises a catheter device for insertion in a blood vessel of human comprising an interior portion and an exterior portion wherein the interior portion (100a) comprises an annular housing, a plurality of capillary conduit, a pumping device, an air sensing device, a blood sensor and a collar. The present disclosure also relates to a method of oxygenating a deoxygenated blood in a human and also to a method for treating a human suffering from hypoxia or hypercarbia.

The present disclosure relates to intracorporeal gas exchange systems and methods in conditions associated with hypoxia and hypercarbia. The present disclosure envisages an intracorporeal oxygenation system comprising a blood oxygenator having a blood compartment and a gas compartment. The blood and gas compartments are separated by a gas permeable barrier so as to allow exchange of carbon dioxide in blood in the blood compartment with oxygen in the gas compartment. The system comprises a catheter device for insertion in a blood vessel of human comprising an interior portion and an exterior portion wherein the interior portion (100a) comprises an annular housing, a plurality of capillary conduit, a pumping device, an air sensing device, a blood sensor and a collar. The present disclosure also relates to a method of oxygenating a deoxygenated blood in a human and also to a method for treating a human suffering from hypoxia or hypercarbia.

A catheter pump having a rotor shaft rotatably arranged in the inner catheter for driving an expandable conveyor element provided at the pump head. The conveyor element is rotatably mounted between a. distal hearing point and a proximal bearing point, wherein the outer catheter has a sleeve section on the distal end thereof surrounding the proximal bearing point, and wherein the proximal bearing point can be moved in the axial direction relative to the sleeve section in order to expand the conveyor element, wherein the proximal bearing point comprises a bearing receiver having a rotational bearing point for a rotary head rotationally fixed to the distal end of the rotor shaft, and a force application point at an axial distance to same for a force application section provided at the distal end of the inner catheter for axially moving the proximal bearing points relative to the sleeve section.