Patent ID: 9200628
Filing Date: 2015-12-01
Classification: A61M,F04B

Abstract:
1. A peristaltic pump for conveyance of a medium conducted in a hose, comprising a housing with a ramped supporting surface; a counter bearing forming an open ring and having a ramped adjusting surface mateable with the ramped supporting surface, and an active surface configured to contact the hose during operation of the pump; a plurality of squeezing elements, the squeezing elements positioned to press the hose against the active surface of the counter bearing when the hose is positioned in the pump, to thereby force the medium to flow in the hose in a conveyance direction, the distance between the squeezing elements and the active surface of the counter bearing being adjustable by moving the counter bearing relative to the supporting surface to thereby slide the ramped adjusting surface against the ramped supporting surface to thereby change a diameter of the counter bearing.