Rotary axial peristaltic pumps and related methods
3 Assignments
0 Petitions
Accused Products
Abstract
Rotary axial peristaltic pumps, related methods and components. The rotary axial peristaltic pump generally comprises a platen having a platen surface, a tube positioned adjacent to the platen surface, cam that rotates about a rotational axis and has a cam surface that is spaced apart from the platen surface and a plurality of tube compressing fingers. The fingers move axially back and forth in sequence to sequentially compress segments or regions of the tube against the platen surface, thereby causing peristaltic movement of fluid through the tube. The fingers move back and forth on axes that are substantially parallel to the axis about which the cam rotates.
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Citations
80 Claims
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1-75. -75. (canceled)
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76. A method for pumping fluid, said method comprising the steps of:
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A) providing a peristaltic pump device that comprises i) a platen having a platen surface, ii) a tube positioned adjacent to the platen surface, iii) a cam that rotates about a rotational axis, said cam having a cam surface that is spaced apart from the platen surface and iv) a plurality of fingers that move back and forth on longitudinal axes that are substantially parallel to the rotational axis of the cam, said fingers being in cooperative engagement with the cam surface such that rotation of the cam about the rotational axis will cause the fingers to move back and forth on said longitudinal axes, thereby sequentially compressing the tube against the platen and resulting in peristaltic movement of fluid through the tube; B) attaching one end of the tube to a source of fluid; and C) rotating the cam such that the fingers sequentially compress the tube against the platen surface, thereby causing peristaltic movement of the fluid through the tube. - View Dependent Claims (77, 78, 79, 80)
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Specification