Rotary axial peristaltic pumps and related methods
First Claim
1. A peristaltic pump device comprising:
- a platen having a platen surface;
a tube positioned adjacent to the platen surface;
a cam that rotates about a rotational axis, said cam having a cam surface that is spaced apart from the platen surface; and
a plurality of fingers, each finger having a longitudinal axis that is substantially parallel to the rotational axis of the cam, said fingers being in engagement with the cam surface such that, as the cam rotates about the rotational axis, the fingers will move axially back and forth, sequentially compressing the tube against the platen surface and thereby causing peristaltic movement of fluid through the tube.
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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
52 Claims
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1. A peristaltic pump device comprising:
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a platen having a platen surface;
a tube positioned adjacent to the platen surface;
a cam that rotates about a rotational axis, said cam having a cam surface that is spaced apart from the platen surface; and
a plurality of fingers, each finger having a longitudinal axis that is substantially parallel to the rotational axis of the cam, said fingers being in engagement with the cam surface such that, as the cam rotates about the rotational axis, the fingers will move axially back and forth, sequentially compressing the tube against the platen surface and thereby causing peristaltic movement of fluid through the tube. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51)
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52-80. -80. (canceled)
Specification