Abstract: The invention relates to a tumble disc bearing (100) to provide an efficient axial bearing for a rotating anode (216) of an X-ray source (212) having a tumble disc (102) for axially bearing the rotating anode (216), and a mounting component (120) for supporting the tumble disc (102). The mounting component (120) comprises an inner mounting face (122) for attaching to a supporting structure (194, 204). The mounting component (120) is supported in the tumble disc (102) at a tumble position (140) in which an inner supporting face (104) of the tumble disc (102) matches an outer supporting face (124) of the mounting component (120) such that the tumble disc (102) is enabled to perform a tumble motion in all directions in relation to the mounting component (120). The mounting component (120) is adapted to be inserted in an inserting position (142) traverse to the tumble position (140) into the tumble disc (102).

Abstract: The invention relates to a tumble disc bearing (100) to provide an efficient axial bearing for a rotating anode (216) of an X-ray source (212) having a tumble disc (102) for axially bearing the rotating anode (216), and a mounting component (120) for supporting the tumble disc (102). The mounting component (120) comprises an inner mounting face (122) for attaching to a supporting structure (194, 204). The mounting component (120) is supported in the tumble disc (102) at a tumble position (140) in which an inner supporting face (104) of the tumble disc (102) matches an outer supporting face (124) of the mounting component (120) such that the tumble disc (102) is enabled to perform a tumble motion in all directions in relation to the mounting component (120). The mounting component (120) is adapted to be inserted in an inserting position (142) traverse to the tumble position (140) into the tumble disc (102).

Abstract: Needles equipped with fibres allow tissue inspection based on optical spectroscopy to diagnose whether tissue is cancerous or not. This requires integration of optical fibers into needles. The problem is how to manufacture the needle having at least one fiber exit at the distal end of the needle, where the fiber does not obstruct the hollow part of the needle if present as well as does not extend beyond the outer cylinder geometry. To solve this problem we propose to manufacture the needle consisting of four parts: an inner cylinder tube, an outer hollow cylinder tube, a needle tip part with integrated fiber exit and a holder part, wherein the hollow spacing between the inner and the outer cylinder is larger or equal to the outer diameter of the fibers, the inner and the outer cylinder are mounted in the holder part and where the tip part is mounted on the two cylinders.