Peristaltic pumping assembly
First Claim
1. A pumping module comprisingat least two axially aligned peristaltic pumping rotors rotatably carried side by side on a single axle,a race aligned with each of the pumping rotors to engage flexible tubing to cause peristaltic flow upon rotation of the rotors,a separate motor associated with each of the peristaltic pumping rotors, anda drive mechanism for operatively connecting each of the pumping rotors to a different one of the motors.
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Accused Products
Abstract
A compact pump assembly includes a plurality of axially aligned peristaltic pumps for activating the flow of liquids through the conduits. A housing containing the pumps, is provided with a removable cover for retaining the pumps in the housing when the cover is closed and for permitting removal of the pumps when the cover is opened. A reversible motor is mounted outside of the housing for driving each of the pumps. The pumps may be independently inactivated by an individual release mechanisms provided on the common closure cover.
71 Citations
10 Claims
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1. A pumping module comprising
at least two axially aligned peristaltic pumping rotors rotatably carried side by side on a single axle, a race aligned with each of the pumping rotors to engage flexible tubing to cause peristaltic flow upon rotation of the rotors, a separate motor associated with each of the peristaltic pumping rotors, and a drive mechanism for operatively connecting each of the pumping rotors to a different one of the motors.
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5. A blood processing apparatus comprising:
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an array of flexible blood flow conduits for conveying blood, a pumping module comprising at least two axially aligned peristaltic pump rotors for selective engagement with the conduits and for activating the flow of blood through the conduits, a housing containing the pump module, and a removable cover on the housing for retaining the pump module in the housing when the cover is closed and for permitting removal of the pump module from the housing when the cover is opened, a separate motor for each one of the pump rotors, and a drive mechanism for operatively connecting each of the pump rotors to a different one of the motors. - View Dependent Claims (6, 7)
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- 8. A peristaltic pump assembly comprising a base surface, a pumping module carrying a plurality of rotors each provided with rotatable rollers spaced around its periphery, said rotors being mounted for rotation on an axle and having a central plane normal to said axle, a separate reversible motor for driving each of said rotors operatively connected to each rotor, wherein said axle is mounted parallel to said base surface, said rotor extending through the plane of said base surface, said base surface further having a cover pivotally mounted thereon, said cover carrying a concave race in alignment with and engageable by each of said rotors to activate peristaltic liquid flow in a flexible conduit positioned between said rotor and said race, said cover being pivotable from an operative position wherein said race engages said rollers to an inoperative position wherein said rotor is exposed for loading and unloading a conduit between said rotor and said race.
Specification