System and pump apparatus for processing fluid samples
First Claim
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1. A pump comprising a motor, a disposable bladder, disposable conduits in fluid communication with said bladder, a structure for compressing or expanding said bladder in response to said motor and check valves for controlling fluid flow through said bladder and said conduits.
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Abstract
A pump is provided having a disposable bladder and disposable conduits together with check valves that control fluid flow through the bladder and conduits when the bladder is alternately compressed and expanded. The use of disposable conduits and bladder eliminates the need for hygienically regenerating the pump between uses. The pump can be utilized in a fluid delivery system such as tangential flow filtration.
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Citations
13 Claims
- 1. A pump comprising a motor, a disposable bladder, disposable conduits in fluid communication with said bladder, a structure for compressing or expanding said bladder in response to said motor and check valves for controlling fluid flow through said bladder and said conduits.
- 5. A fluid delivery system for transporting fluid from a first fluid storage volume to a point of use or to a second fluid storage volume comprising a first fluid storage volume, a second volume selected from the group consisting of a point of use and a second fluid storage volume, one or more fluid conduits connecting the first volume to the second volume, the one or more fluid conduits containing one or more a disposable bladders the one or more disposable bladders having an inlet from the one or more conduits at one location and an outlet from the bladder to the one or more flexible conduits at a second location of the bladder, the inlet and outlet each having a check valve for controlling fluid flow through the one or more bladders and conduits and a pump having a motor and a structure for compressing or expanding the bladder in response to the motor.
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13. A disposable assembly for a pump through which fluid moves through the pump comprising a disposable plastic bladder, the bladder having an inlet and an outlet, a flexible conduit attached to each of the inlet and outlet and check valves mounted adjacent the inlet and the outlet.
Specification