Medical fluid suction pump assembly and interventional pump flow catheter

Abstract

A medical fluid suction pump arrangement, characterized in that it comprises: a support tube body, wherein a drainage channel is provided in the support tube body, the drainage channel extending from the distal section of the support tube body to the proximal section of the support tube body; an impeller, wherein the impeller is provided on the outside at the distal end of the support tube body; a gear mechanism comprising a gear shaft and a bearing, wherein the bearing is located in the support tube body, the gear shaft extends axially through the support tube body and projects out of this support tube body at its distal end, the gear shaft is drivenly connected to the impeller, and the gear shaft is rotatably mounted in the support tube body via the bearing; the bearing is located along the path of the drainage channel, wherein the bearing is provided with an axially through-hole or slot that is connected to the drainage channel.

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