Peristaltic Pump

Abstract

The peristaltic pump is provided with a two-piece housing ( 2, 3 ), in which a conveying member ( 1 ) as well as a pump tubing section ( 6 ) squeezable by the conveying member is received. For fixing the pump tubing section ( 6 ) in the housing ( 2, 3 ), a tubing holder ( 4 ) is provided. Further provided is a connecting element ( 5 ) provided with duct shaped connecting sockets ( 14 a, 14 b) for connecting tubing sections ( 15 a, 15 b). For connecting the pump tubing section ( 6 ) to the tubing holder ( 4 ), the two ends of the particular pump tubing section ( 6 ) are fixed in receptacles ( 10 a, 10 b) of the tubing holder ( 4 ), which positively enclose the outside of the pump tubing section ( 6 ). The connecting element ( 5 ) is fixed to the tubing holder ( 4 ) by means of a snap-on connection. Thereby, the connecting sockets ( 14 a, 14 b) thereof are sealingly connected to the particular pump tubing section ( 6 ).

1 - 13 . (canceled) 
   
   
       14 . Peristaltic pump, having a conveying member ( 1 ) received in a housing ( 2 ,  3 ), and having at least one flexible pump tube section ( 6 ) being squeezable by said conveying member ( 1 ) for peristalticly conveying a medium, said pump comprising a tubing holder ( 4 ) adapted to be attached to the housing ( 2 ) to which the pump tube section ( 6 ) is attached, said tubing holder ( 4 ) having at least one connecting element ( 5 ) for connecting tubing sections ( 15   a ,  15   b ) for fluid communication with the pump tube section ( 6 ), said at least one connecting element ( 5 ) including connecting sockets ( 14   a ,  14   b ) configured for sealing connection with the pump tube section ( 6 ) upon connecting the connecting element ( 5 ) to the pump tube section ( 6 ). 
   
   
       15 . The peristaltic pump according to  claim 14 , wherein said tubing holder ( 4 ) is provided with hollow cylindrical or conical receptacles ( 10   a ,  10   b ), to which corresponding end portions ( 6   a ,  6   b ) of the pump tubing section ( 6 ) are connected and positively and/or non-positively enclosed. 
   
   
       16 . The peristaltic pump according to  claim 15 , wherein said connecting element ( 5 ) is provided with duct shaped extension members ( 13   a ,  13   b ) that are configured to penetrate said corresponding end portions ( 6   a ,  6   b ) of the pump tubing section ( 6 ) and are further configured to radially load said end portions upon connecting the connecting element ( 5 ) to the tubing holder ( 4 ). 
   
   
       17 . The peristaltic pump according to  claim 16 , wherein said connecting element ( 5 ) is provided with connecting sockets ( 14   a ,  14   b ) for connecting tubing sections ( 15   a ,  15   b ) and with extension members ( 13   a ,  13   b ) for sealingly connecting the pump tubing section ( 6 ), whereby each of said connecting sockets ( 14   a ,  14   b ) communicates with a corresponding extension member ( 13   a ,  13   b ) through a corresponding continuous channel ( 18   a ,  18   b ). 
   
   
       18 . The peristaltic pump according to  claim 16 , wherein said duct-shaped extension members ( 29   a ,  29   b ) are provided with a smooth outside surface. 
   
   
       19 . The peristaltic pump according to  claim 16 , wherein said duct-shaped extensions ( 29   a ,  29   b ) are provided with barb-like shoulders ( 30   a ,  30   b ). 
   
   
       20 . The peristaltic pump according to  claim 14 , wherein said tubing holder ( 4 ) is attachable to the housing ( 2 ) by means of a quick-release connection. 
   
   
       21 . The peristaltic pump according to  claim 20 , wherein said quick-release connection includes a latch or snap-on connection. 
   
   
       22 . The peristaltic pump according to  claim 14 , wherein said connecting element ( 5 ) is attachable to the tubing holder ( 4 ) by means of a quick release connection. 
   
   
       23 . The peristaltic pump according to  claim 22 , wherein said quick-release connection is a latch or snap-on connection. 
   
   
       24 . The peristaltic pump according to  claim 14 , wherein said end portion ( 6   a ,  6   b ) of the particular pump tubing section ( 6 ) is cemented to the receptacle ( 10   a ,  10   b ). 
   
   
       25 . The peristaltic pump according to  claim 14 , wherein positioning elements ( 24 ,  25 ) are provided between said connecting element ( 5 ) and said tubing holder ( 4 ) for positioning said connecting element ( 5 ) relative to said tubing holder ( 4 ). 
   
   
       26 . The peristaltic pump according to  claim 14 , wherein the housing ( 2 ) is provided with at least one positioning element ( 19 ) to ensure a correct positional arrangement of the tubing holder ( 4 ) on the housing ( 2 ). 
   
   
       27 . The peristaltic pump according to  claim 14 , wherein said tubing holder ( 4 ) is provided with two parallel rows of receptacles ( 10   a ,  10   b ) for fixing several two or more pump tube sections, and further wherein two connecting elements ( 5   a ,  5   b ) are provided, a corresponding one of which is attachable to one of the parallel rows of receptacles ( 10   a ,  10   b ). 
   
   
       28 . The peristaltic pump according to  claim 27 , wherein said two connecting elements ( 5   a ,  5   b ) are of substantially identical configuration. 
   
   
       29 . The peristaltic pump according to  claim 27 , wherein said connecting elements ( 5   a ,  5   b ) are of different construction, and further wherein positioning elements are provided between the housing and a corresponding one of said connecting elements ( 5   a ,  5   b ), said positioning elements configured to ensure a correct positional arrangement of the particular connecting element ( 5   a ,  5   b ) with regard to the housing ( 2 ).