Intravascular blood pump

An intravascular blood pump (1) comprises a catheter (5), a rotor (10), a housing (11) housing the rotor (10), and a drive shaft (12) extending through the catheter (5) and rotatably supported in a proximal bearing (13) located at a proximal end of the rotor (10). The proximal bearing (13) comprises a bearing sleeve (13) and an outer bearing ring (32). The bearing sleeve (30) includes a proximal end portion at a proximal end of the outer bearing ring (32), the proximal end portion of the bearing sleeve (30) forming an axial bearing with a proximal end surface of the outer bearing ring (32). The bearing sleeve (30) further includes a distal end portion extending distally from the proximal end portion (30a) of the bearing sleeve (30) into the outer bearing ring (32), wherein the distal end portion of the bearing sleeve (30) forms a radial bearing with the outer bearing ring (32). 一种血管内血泵(1)，包括导管(5)、转子(10)、容纳有转子(10)的壳体(11)，以及延伸穿过导管(5)并可旋转地支撑在位于转子(10)的近端的近端轴承(13)中的驱动轴(12)。近端轴承(13)轴承套筒(13)和外轴承环(32)。轴承套筒(30)包括位于外轴承