Patent ID: 8393879
Filing Date: 2013-03-12
Classification: F04B

Abstract:
1. A peristaltic pump comprising: opposing occlusion surfaces; a rotor between the occlusion surfaces and carrying a set of occluding surfaces fixed relative to one another, wherein at least one of either the set of occluding surfaces or the opposing occlusion surfaces are linearly movable relative to the other of the set of occluding surfaces and the occlusion surfaces during pumping; a first compressible conduit extending between the set of occluding surfaces and one of the occlusion surfaces; a second compressible conduit extending between the set of occluding surfaces and the other of the occlusion surfaces, wherein at least one of either the set of occluding surfaces or the opposing occlusion surfaces are linearly movable relative to the other of the set of occluding surfaces and occlusion surfaces by a distance sufficient such that substantially equal compression forces are applied to the first compressible conduit and the second compressible conduit, wherein the set of occluding surfaces are linearly movable relative to the occlusion surfaces; a housing providing the opposing occlusion surfaces, wherein the rotor is linearly movable relative to the housing; and a drive shaft extending along an axis and coupled to the rotor, wherein the rotor is linearly movable relative to the shaft in a direction non-parallel to the axis.