Patent ID: 8721806
Filing Date: 2014-05-13
Classification: A61B,B08B

Abstract:
1. A combination of a flexible hollow shaft for a medical instrument and a device for cleaning said flexible hollow shaft, said combination comprising: a body having an inner hollow space, a flexible hollow shaft to be cleaned, said hollow shaft entirely passing through said hollow space; an attachment piece arranged at said body, a cleaning agent can be delivered through said attachment piece into said hollow space; said hollow shaft comprising: a proximal end; a distal end an interior; and a wall, which is provided with openings; wherein an inside wall of said hollow space is at a radial distance from an outer face of said hollow shaft inserted into said hollow space of said body, and wherein at least two flow restrictors which are axially spaced apart from one another are provided which extend in a radial direction from an inner side of said hollow space, said at least two flow restrictors delimiting a space between said outer face of said hollow shaft and said inside wall of said hollow space in axial directions, and restrict a flow of said cleaning agent in axial directions of said hollow space, said at least two flow restrictors ending at a radial distance from an outer side of said flexible hollow shaft inserted through said hollow space and an inner surface end of each flow restrictor, said radial distance being such that at least parts of said inserted cleaning agent inserted under pressure passes radially through said openings and into said interior of said hollow shaft, thereby cleaning said openings and said interior of said hollow shaft at the same time, and said proximal end and said distal end of said hollow shaft protruding out of said hollow space such that the cleaning agent flows through the interior of said hollow shaft and escapes from at least one of said proximal end and said distal end of said hollow shaft.