Abstract: The invention relates to a heat exchanger tube (1) which is a component of a heat exchanger of an oxygenator. The heat exchanger tube (1) comprises a tube body (2) consisting of thermoplastic polyurethane (PTU). The tube body (2) has a Shore hardness of greater than 60 D. This results in a heat exchanger tube optimised for use in a heat exchanger of an oxygenator.

Abstract: A tube has a tube body. In the tube body, at least one high-pressure lumen and at least one low-pressure lumen are embedded. The at least one high-pressure lumen and the at least one low-pressure lumen are embedded in the tube body as a bundle configured as a lumen bundle. As a result, a tube body is obtained that is flexibly adaptable to various conditions of use.

Abstract: The invention relates to a heat exchanger tube (1) which is a component of a heat exchanger of an oxygenator. The heat exchanger tube (1) comprises a tube body (2) consisting of thermoplastic polyurethane (PTU). The tube body (2) has a Shore hardness of greater than 60 D. This results in a heat exchanger tube optimised for use in a heat exchanger of an oxygenator.

Abstract: A tube has a tube body. In the tube body, at least one high-pressure lumen and at least one low-pressure lumen are embedded. The at least one high-pressure lumen and the at least one low-pressure lumen are embedded in the tube body as a bundle configured as a lumen bundle. As a result, a tube body is obtained that is flexibly adaptable to various conditions of use.

Abstract: The invention relates to a machine for creating non-cylindrical bore surfaces having a machine spindle (5), to which a machining tool (2-06, 3-04) can be connected, onto which a feed movement is transferred via a feed means (1-10). A direct axially parallel acting linear drive (1-06) is provided in the tool fitting unit (1) associated with the machine spindle (5) for fine feeding, the feed movement of which overlaps the first mentioned feed movement, and the actuating means (1-05) of which acts upon a feed (1-03) that is disposed together with the machining tool (2-05, 3-04) and the means for deflection (1-031, 1-032) of the feed movement in a tool unit (2, 3) that can be exchanged on the tool fitting unit (1).

Abstract: The invention relates to a machine for creating non-cylindrical bore surfaces having a machine spindle (5), to which a machining tool (2-06, 3-04) can be connected, onto which a feed movement is transferred via a feed means (1-10). A direct axially parallel acting linear drive (1-06) is provided in the tool fitting unit (1) associated with the machine spindle (5) for fine feeding, the feed movement of which overlaps the first mentioned feed movement, and the actuating means (1-05) of which acts upon a feed (1-03) that is disposed together with the machining tool (2-05, 3-04) and the means for deflection (1-031, 1-032) of the feed movement in a tool unit (2, 3) that can be exchanged on the tool fitting unit (1).

Abstract: The invention relates to a catheter tube for local anaesthetic with improved characteristics in terms of resistance to kinking, a higher degree of rigidity during application and reduced rigidity after application. According to the invention, said characteristics are achieved by designing the catheter tube as a layered composite tube, whereby the interior that faces the lumen consists of a polyamide layer and the exterior consists of a polyurethane layer. The layer thickness distribution of the polyamide inner layer to the polyurethane outer layer is preferably between 50:50 and 70:30. The inner and outer layers of the inventive catheter tube can be provided with one or more radiopaque strips.

Abstract: The invention concerns flexible tubes for delivering solutions for perfusion or injection into the peripheral vascular system. The invention is characterized in that said flexible tubes are manufactured by coextrusion process from a composite polyamide and polyurethane laminate, the inner layer facing the lumen and the outer layer being respectively formed with polyamide and polyurethane. The desired properties of said flexible tubes, such as buckling stability, flexural rigidity or free flow capacity, can be adjusted and customized on the basis of the wall thickness distribution which, preferably has a PA/PUR ratio of 50:50 to 70:30, and on the basis of the Shore hardness of the initial constituents.