Infusion bag

Abstract

In an infusion bag ( 1 ) with a draw string ( 11 ) threaded through an opening provided in the top part ( 2 ) of the bag ( 1 ), surrounding the infusion bag ( 1 ) in the longitudinal direction and by means of which the bag ( 1 ) can be squeezed, two openings ( 4 and 5 ) are produced in the top part ( 2 ) at a lateral distance from one another. The draw string ( 11 ) is threaded doubled through each of the openings ( 4, 5 ) thereby forming two loops ( 12, 13 ) which are connected together by an intermediate piece running along the top part ( 2 ). Furthermore, the sections ( 15, 16 ) of the draw string ( 11 ) which are in contact with the infusion bag ( 1 ) are threaded back through the loops ( 12, 13 ) and form the tension elements ( 17, 18 ). The effect of this embodiment is that the draw string ( 11 ) can be attached to the infusion bag ( 1 ) without the need for metal staples and that the infusion bag ( 1 ) can be almost completely squeezed out using the draw string ( 11 ). Furthermore, tearing of the top part ( 2 ) of the infusion bag ( 1 ) is excluded even when considerable force is applied via the tension elements ( 17, 18 ).

1 . Infusion bag ( 1 ) with a draw string ( 11 ) threaded through an opening provided in the top part ( 2 ) of the bag ( 1 ), surrounding the infusion bag ( 1 ) in the longitudinal direction and by means of which the bag ( 1 ) can be squeezed, with the draw string ( 11 ) being threaded doubled through the opening in the top part ( 2 ) and formed into a loop on one side of the infusion bag ( 1 ), with a section of the draw string ( 11 ) leading away from the loop surrounding the infusion bag ( 1 ) and passing back through the loop, and with additional sections of the draw string ( 11 ) leading away from the loop and passing back through the loop each forming tensioning elements for squeezing the infusion bag ( 1 ), 
 characterised in that, 
 two openings ( 4 ,  5 ) are produced in the top part ( 2 ) of the infusion bag ( 1 ) at a lateral distance from one another and, in a preferred embodiment, at the same height, that the draw string ( 11 ) is threaded doubled through each of the openings ( 4 ,  5 ) thereby forming two loops ( 12 ,  13 ) which are connected together by an intermediate piece ( 14 ) running along the top part ( 2 ) of the infusion bag ( 1 ), and that the sections ( 15 ,  16 ) of the draw string ( 11 ) which are in contact with the infusion bag ( 11 ) are threaded back through the loops ( 12 ,  13 ) and form the tension elements ( 17 ,  18 ).  
   
     
     
         2 . The infusion bag in accordance with  claim 1 , 
 characterised in that, 
 the lateral distance from the two openings ( 4 ,  5 ) to the longitudinal edges of the infusion bag ( 1 ) is selected such that, with the sections ( 15 ,  16 ) of the draw string ( 11 ) running parallel to the longitudinal edges of the infusion bag ( 1 ), the infusion bag ( 1 ) will be divided into three approximately equally sized segments when it is squeezed together.  
   
     
     
         3 . The infusion bag in accordance with  claim 1 , 
 characterised in that, 
 the draw string ( 11 ) is threaded through the two loops ( 12 ,  13 ) and through the area of the base ( 3 ′) of the infusion bag ( 1 ′) in such a way that the sections ( 15 ,  16 ) of the draw string ( 11 ) are crossed over on one side of the infusion bag ( 1 ) and run in parallel to its longitudinal axis on the other side.  
   
     
     
         4 . The infusion bag in accordance with  claim 1 , 
 characterised in that, 
 the draw string ( 11 ) is threaded through the two loops ( 12 ,  13 ) and through the area of the base ( 3 ′) of the infusion bag ( 1 ′) in such a way that the draw string ( 11 ) is crossed over on both sides of the infusion bag ( 1 ′).  
   
     
     
         5 . The infusion bag in accordance with  claim 1 , 
 characterised in that, 
 the draw string ( 11 ) is threaded through the two loops ( 12 ,  13 ) and through the area of the base ( 3 ′) of the infusion bag ( 1 ′) in such a way that the sections ( 15 ,  16 ) of the draw string ( 11 ) are arranged in the form of a triangle on both sides of the infusion bag ( 1 ′).  
   
     
     
         6 . The infusion bag in accordance with one or more of  claims 1  to  5 , 
 characterised in that,  
 in order to guide the draw string ( 11 ) in the area of the base ( 3 ′) of the infusion bag ( 1 ), it is possible to provide two penetrations ( 6 ,  7 ), which are preferably located at about the same distance from the edges as the openings ( 4 ,  5 ) which form the loops ( 12 ,  13 ), or in the case where the segments ( 15 ,  16 ) of the draw string ( 11 ) form a triangle, to have one opening ( 8 ) arranged in the middle.  
 
     
     
         7 . The infusion bag in accordance with one or more of  claims 1  to  6 , 
 characterised in that, 
 the two tension elements ( 17 ,  18 ) of the draw string ( 11 ) are jointly connected to a tag ( 21 ), terminated with individual tags ( 21 ′,  21 ″) or knotted together.