Coupling for hose connections
AssigneeB. Braun Avitum AG
InventorSwetlana Lisitschew
Life of this patent
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Abstract
A hose mount of a blood treatment machine, having a hose connection element as a component of the machine's internal hosing including at least one rigid sleeve portion that is adapted to position a flexible hose radially outside over the free end of the at least one sleeve portion, an axial stop formed or arranged on the outer circumference of the sleeve portion at a distance from the free end, and a flexible collar arranged or formed on the at least one sleeve element toward the free end with an axial distance to the axial stop in order to define an external circumferential groove between itself and the axial stop.
Claims12
A hose connection element for a blood treatment machine internal hosing comprising:
- at least one rigid sleeve portion, each rigid sleeve portion having a free end, wherein the at least one rigid sleeve portion is adapted to be inserted into a through-hole of a housing wall of the blood treatment machine or into a through-hole of a holding bracket fixed to the housing wall of the blood treatment machine;
- a rigid axial stop formed or arranged on an outer circumference of one or more of the at least one rigid sleeve portion a distance from the free end thereof;
- and
- a flexible collar formed or arranged on the one or more of the at least one rigid sleeve portion between the rigid axial stop and the free end and spaced from the rigid axial stop an axial distance to define an external circumferential groove between the flexible collar and the rigid axial stop, wherein when the at least one rigid sleeve portion is inserted into the through-hole of the housing wall or the through-hole of the holding bracket, the flexible collar automatically and resiliently spreads on a side of the housing wall or holding bracket opposite the side of insertion, such that the housing wall or holding bracket is axially held between the flexible collar and the rigid axial stop in the external circumferential groove;
- wherein, when the housing wall or holding bracket is axially held between the flexible collar and the rigid axial stop in the external circumferential groove, an open end of a flexible hose is positioned radially around the free end of the at least one rigid sleeve portion such that the open end of the flexible hose is held by the free end of the at least one rigid sleeve portion.
Dependencies are inferred from the claim text.