Peristaltic pumping device
First Claim
1. In a peristaltic pumping device comprising a housing, rotor means rotatably mounted in the housing, means for locating a plurality of flexible walled tubes to extend around the rotor means at respective positions axially along the rotor means such that the rotor means, when rotated in use, act on the tubes to compress successive parts thereof against support means provided on the housing thereby inducing a flow of fluid through the tubes by peristaltic action;
- the improvement wherein;
said support means comprise a plurality of individual curved track members each separately, pivotally mounted on the housing at or adjacent one end thereof with resilient means being provided to act between the housing and each track member at a position spaced from the pivotal mounting thereof.
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Accused Products
Abstract
A peristaltic pumping device comprises a cartridge which is releasably engagable in a circular socket of a peristaltic pump. The cartridge has a carrier having an annular series of peripheral rollers, the carrier being rotated by an output rotary assembly of the pump through a drive shaft. A plurality of tubes are located to pass through the cartridge in engagement with the rollers which effect pumping of liquids through the tubes by compression of successive parts of the tubes by the rollers as the carrier rotates thereby inducing the liquid flows therethrough by peristaltic action.
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Citations
19 Claims
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1. In a peristaltic pumping device comprising a housing, rotor means rotatably mounted in the housing, means for locating a plurality of flexible walled tubes to extend around the rotor means at respective positions axially along the rotor means such that the rotor means, when rotated in use, act on the tubes to compress successive parts thereof against support means provided on the housing thereby inducing a flow of fluid through the tubes by peristaltic action;
- the improvement wherein;
said support means comprise a plurality of individual curved track members each separately, pivotally mounted on the housing at or adjacent one end thereof with resilient means being provided to act between the housing and each track member at a position spaced from the pivotal mounting thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
- the improvement wherein;
Specification