Port, Rinsing Cap, Medical Treatment Apparatus, and System

Abstract

The present disclosure relates to a port for establishing a fluid communication between at least one fluid line of the medical treatment apparatus, which fluid line is assigned to the interior of a medical treatment apparatus, and a connector of a fluid line of a fluid-guiding disposable, which fluid line is assigned to the exterior of the medical treatment apparatus, wherein the port includes at least a first fluid guide and a second fluid guide. The first fluid guide has at least a first lumen and a first end-side opening, which is provided for receiving and/or guiding a first, medical fluid and for establishing the fluid communication with the connector. The second fluid guide has at least a second lumen and a second end-side opening. The first end-side opening of the first fluid guide is arranged, at least in sections, in the second lumen of the second fluid guide.

1 - 18 . (canceled) 
     
     
         19 . A port for establishing fluid communication between: (i) at least one fluid line of a medical treatment apparatus, which fluid line is assigned to an interior of the medical treatment apparatus, and (ii) a connector of a fluid line of a disposable, wherein the fluid line is assigned to an exterior of the medical treatment apparatus, the port comprising:
 a first fluid guide with at least a first lumen and a first end-side opening, provided for receiving and/or guiding a medical fluid and for establishing the fluid communication with the connector; and   a second fluid guide having at least a second lumen and a second end-side opening,
 wherein the first end-side opening of the first fluid guide is arranged, at least in sections, in the second lumen of the second fluid guide. 
   
     
     
         20 . The port according to  claim 19 , wherein the second end-side opening of the second fluid guide has a cross-sectional area smaller than a cross-sectional area of the second lumen arranged farther towards the interior of the medical treatment apparatus than the second end-side opening. 
     
     
         21 . The port according to  claim 20 , wherein the outer diameter of the first fluid guide is constant. 
     
     
         22 . The port according to  claim 21 , wherein the outer diameter of the first fluid guide is constant in a region in which the cross-sectional area of the second lumen increases axially. 
     
     
         23 . The port according to  claim 19 , wherein the second lumen comprises a first cross-sectional area delimited by side walls of the second lumen, wherein the first cross-sectional area is smaller than any other cross-sectional area of the second lumen delimited by the side walls of the second lumen which faces or is arranged further towards the interior of the port or of the medical treatment apparatus than the first cross-sectional area. 
     
     
         24 . The port according to  claim 19 , wherein the second lumen comprises, in at least one cross-section, no circular cross-sectional area. 
     
     
         25 . The port according to  claim 19 , wherein the first lumen ends in a funnel-shaped or diverging shape in the first end-side opening. 
     
     
         26 . The port according to  claim 19 , wherein the second lumen comprises at least one cross-sectional area which is smaller in its transverse direction than in its height. 
     
     
         27 . The port according to  claim 19 , wherein a radially outer limitation of the first fluid guide is spaced or distanced, over the entire length of the first fluid guide, or at least in sections, at least 5 mm from a radially inner surface of the side wall of the second lumen. 
     
     
         28 . The port according to  claim 27 , wherein the radially outer limitation of the first fluid guide is spaced or distanced over the entire length of the first fluid guide, or at least in sections, at least 8 mm from the radially inner surface of the side wall of the second lumen. 
     
     
         29 . The port according to  claim 19 , further comprising a leak sensor. 
     
     
         30 . The port according to  claim 29 , wherein the leak sensor comprises a conductivity sensor. 
     
     
         31 . The port according to  claim 29 , wherein the leak sensor protrudes into the second lumen. 
     
     
         32 . The port according to  claim 29 , wherein the leak sensor comprises a pin or ring. 
     
     
         33 . The port according to  claim 19 , wherein the second lumen comprises a recess which in at least one section or cut, which section neither is a longitudinal cut nor extends parallel to a cross-section through the second lumen, comprises a section with a triangular or wedge-shaped shape. 
     
     
         34 . The port according to  claim 33 , wherein an inner surface of the side wall of the second lumen comprises the recess. 
     
     
         35 . A medical treatment apparatus comprising:
 a housing with a fastening section for connecting the medical treatment apparatus to a port according to  claim 19 , wherein the fastening section comprises an edge.   
     
     
         36 . The medical treatment apparatus according to  claim 35 , wherein the fastening section protrudes over or beyond adjacent housing sections. 
     
     
         37 . The medical treatment apparatus according to  claim 35 , wherein the edge comprises a raised or elevated edge. 
     
     
         38 . The medical treatment apparatus according to  claim 35 , wherein the edge extends in a first section of the edge annularly with or below an inner radius, wherein a second section of the edge is not part of the annular shape having the inner radius and being formed by the first section of the edge. 
     
     
         39 . The medical treatment apparatus according to  claim 35 , further comprising a swivel lever, arranged for its pivoting about a swivel axis, wherein the swivel lever comprises:
 a receiving section for releasably receiving a rinsing cap for temporarily closing the second lumen of the second fluid guide by or after pivoting the swivel lever into a first pivot position of the swivel lever; and/or   a stop to temporarily prevent an axial separation movement for separating the connector of the disposable from the fastening section by or after pivoting the swivel lever into a second pivot position of the swivel lever,   wherein a rinsing cap is releasably received in the receiving section for temporarily closing an opening of the port, wherein the port serves to establish a fluid communication between at least one fluid line of the medical treatment apparatus associated with the interior of a medical treatment apparatus and a connector of a fluid line of a fluid-conducting disposable associated with the exterior of the medical treatment apparatus, wherein the rinsing cap comprises a front face facing the interior of the medical treatment apparatus when the rinsing cap is in use, wherein the front face comprises an axially and/or radially raised edge on its circumference.   
     
     
         40 . The medical treatment apparatus according to  claim 39 , wherein the elevated edge comprises a section which is wedge-shaped or triangular in a longitudinal cut of the rinsing cap. 
     
     
         41 . The medical treatment apparatus according to  claim 39 , wherein the swivel lever comprises a recess or groove for inserting a section of an edge of an end plate or end disc of the connector for removing the connector from the port. 
     
     
         42 . The medical treatment apparatus according to  claim 39 , wherein the port is received in the fastening section such that a center line of the first fluid guide or of the first lumen is inclined 4° degrees or more to a surface on which the medical treatment apparatus is put. 
     
     
         43 . The medical treatment apparatus according to  claim 39 , comprising a displacement device by which the swivel lever is translationally displaceable or guidable along the swivel axis. 
     
     
         44 . The medical treatment apparatus according to  claim 39 , comprising a returning element for translationally moving the receiving section and a damper device for damping a translational movement caused by the returning element. 
     
     
         45 . A system with a medical treatment apparatus according to  claim 35 , further comprising a disposable which comprises the fluid line and the connector with a connector lumen for fluidically connecting the fluid line with the first lumen of the first fluid guide of the port.