Pump cassette bank

• US 20050095153A1
• Filed: 10/30/2003
• Published: 05/05/2005
• Est. Priority Date: 10/30/2003
• Status: Active Grant

• Current Assignee: Deka Products Limited Partnership
• Original Assignee: Deka Products Limited Partnership
• Inventors: Demers, Jason A., Gray, Larry B., McGill, David W.
• Granted Patent: US 7,632,078 B2
• Time in Patent Office: Days
• US Class Current: 417/477.2
• CPC Class Codes: A61L 2/0088 Liquid substances
• CPC Class Codes: A61L 2/24 Apparatus using programmed or automatic operation
• CPC Class Codes: A61M 1/0213 with isolated sections of the tube used as additive reservoirs
• CPC Class Codes: A61M 1/0272 Apparatus for treatment of blood or blood constituents prior to or for conservation, e.g. freezing, drying or centrifuging
• CPC Class Codes: A61M 1/0281 Apparatus for treatment of blood or blood constituents prior to transfusion, e.g. washing, filtering or thawing
• CPC Class Codes: A61M 1/36225 with blood pumping means or components thereof
• CPC Class Codes: A61M 1/3687 Chemical treatment A61M1/3675 takes precedence
• CPC Class Codes: A61M 2205/125 with incorporated filters
• CPC Class Codes: B01F 23/451 by injecting one liquid into another
• CPC Class Codes: B01F 23/49 Mixing systems, i.e. flow charts or diagrams
• CPC Class Codes: B01F 25/105 Mixing heads, i.e. compact mixing units or modules, using mixing valves for feeding and mixing at least two components
• CPC Class Codes: B01F 25/60 Pump mixers, i.e. mixing within a pump
• CPC Class Codes: B01F 33/81 Combinations of similar mixers, e.g. with rotary stirring devices in two or more receptacles
• CPC Class Codes: B01F 33/811 in two or more consecutive, i.e. successive, mixing receptacles or being consecutively arranged
• CPC Class Codes: B01F 35/711 for feeding a mixture of components, i.e. solids in liquid, solids in a gas stream
• CPC Class Codes: B01F 35/715 Feeding the components in several steps, e.g. successive steps
• CPC Class Codes: B01F 35/8823 using diaphragms or bellows
• CPC Class Codes: F04B 13/02 of two or more fluids at the same time
• CPC Class Codes: F04B 23/02 having reservoirs
• CPC Class Codes: F04B 23/06 the pumps being all of reciprocating positive-displacement type
• CPC Class Codes: F04B 43/0009 : Special features
• CPC Class Codes: F04B 43/06 : Pumps having fluid drive
• CPC Class Codes: F04B 49/22 : by means of valves F04B49/03 takes precedence
• CPC Class Codes: F04B 53/06 : Venting
• CPC Class Codes: F04B 53/16 : Casings; Cylinders; Cylinder liners or heads; Fluid connections
• CPC Class Codes: F04B 53/22 : Arrangements for enabling ready assembly or disassembly
• CPC Class Codes: G05D 11/132 : by controlling the flow of the individual components G05D11/133 takes precedence
• CPC Class Codes: Y02A 50/30 : Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
• CPC Class Codes: Y10T 137/0329 : Mixing of plural fluids of diverse characteristics or conditions
• CPC Class Codes: Y10T 137/0352 : Controlled by pressure
• CPC Class Codes: Y10T 137/86131 : Plural
• CPC Class Codes: Y10T 137/87652 : With means to promote mixing or combining of plural fluids
• CPC Class Codes: Y10T 29/53 : Means to assemble or disassemble
• CPC Class Codes: Y10T 292/0911 : Hooked end
• CPC Class Codes: Y10T 292/212 : With expanding or contracting means
• CPC Class Codes: Y10T 292/438 : Spring-arm catch

Abstract

A plurality of pump cassettes are connected through distribution tubing to a single inlet tube such that the inlet tube is shared by the pump cassettes through the distribution tubing. The plurality of pump cassettes may be symmetrically attached to the distribution tubing. A four-port coupling may be inserted in the distribution tubing for making connection to the inlet tube and a middle one of the pump cassettes when the number of cassettes is an odd number.

Claims

1. Apparatus for use in a fluid processing workstation having a plurality of pumps, the apparatus comprising:

a plurality of pump cassettes for use respectively with the plurality of pumps, each cassette having a first fluid inlet port in selective fluid communication with a first pump chamber;

an inlet tube; and

distribution tubing that connects the inlet tube to the first fluid inlet port of each of the pump cassettes.

2. Apparatus according to claim 1, wherein the inlet tube is centrally attached along the distribution tubing and the plurality of pump cassettes are symmetrically attached to the distribution tubing with respect to the inlet tube attachment.

3. Apparatus according to claim 2, wherein the attachments of the plurality of pump cassettes to the distribution tubing are equally spaced apart along the distribution tubing.

4. Apparatus according to claim 1, further comprising a plurality of incubation bags, each bag being attached to an outlet port on a respective one of the pump cassettes.

5. Apparatus according to claim 4, further comprising a bar code label on each of the incubation bags.

6. Apparatus according to claim 1, further comprising a break-away closure on the inlet tube.

7. Apparatus according to claim 1, wherein each pump cassette includes a second fluid inlet port with a second fluid inlet tube attached thereto and further including a break-away closure on the second fluid inlet tube.

8. Apparatus according to claim 1, further comprising a four-port coupling inserted in the distribution tubing such that the distribution tubing extends out from first and second oppositely located ports of the coupling, the first fluid inlet tube is connected to a third port of the coupling and the first fluid inlet port of a middle one of the pump cassettes is coupled to a fourth port of the coupling.

9. A pump cassette bank comprising:

an odd number of pump cassettes, each cassette having a working solution inlet port selectively coupled to a working solution pump chamber;

a working solution inlet tube; and

distribution tubing connected between the working solution inlet tube and the working solution inlet ports of the odd number of pump cassettes, wherein the working solution inlet tube joins the distribution tubing proximate to a junction between the distribution tubing and a middle one of the pump cassettes such that connected to the distribution tubing on either side of the junction are an equal number of the pump cassettes.

10. The pump cassette bank of claim 9 wherein the pump cassettes connected to the distribution tubing on one side of the junction are spaced from the junction given distances from the junction and wherein at those given distances pump cassettes are connected to the distribution tubing on the other side of the junction.

11. The pump cassette bank of claim 9 further comprising a plurality of incubation bags, each bag being attached to an outlet port on a respective one of the pump cassettes.

12. The pump cassette bank of claim 10 further comprising a bar code label on each of the incubation bags.

13. The pump cassette bank of claim 9 further comprising a break-away closure on the working solution inlet tube.

14. The pump cassette bank of claim 9 wherein each pump cassette includes a second fluid inlet port with a second fluid inlet tube attached thereto and further including a break-away closure on the second fluid inlet tube.

15. The pump cassette bank of claim 9 further comprising a four-port coupling inserted in the distribution tubing such that the distribution tubing extends out from first and second oppositely located ports of the coupling, the working solution inlet tube joins the distribution tubing through a third port of the coupling and the working solution inlet port of a middle one of the pump cassettes is coupled to a fourth port of the coupling to form the junction with the distribution tubing.

16. A pump cassette bank comprising:

a plurality of pump cassettes, each pump cassette having a first inlet port and an associated first pump chamber, a second inlet port and an associated second pump chamber, an air vent and associated hydrophobic filter, and an outlet port;

a working solution inlet tube; and

distribution tubing connected between the working solution inlet tube and the first inlet ports of each of the plurality of pump cassettes, wherein the working solution inlet tube is centrally connected to the distribution tubing such that connected to the distribution tubing on either side of a junction between the distribution tubing and the working solution inlet tube are an equal number of the pump cassettes.

17. The pump cassette bank of claim 16 wherein the pump cassettes connected to the distribution tubing on one side of the junction are spaced from the junction given distances from the junction and wherein at those given distances pump cassettes are connected to the distribution tubing on the other side of the junction.

18. The pump cassette bank of claim 16 further comprising a four-port coupling inserted in the distribution tubing such that the distribution tubing extends out from first and second oppositely located ports of the coupling, the working solution inlet tube is connected to a third port of the coupling to form the junction between the distribution tubing and the working solution inlet tube and the first inlet port of a middle one of the pump cassettes is coupled to a fourth port of the coupling.

19. The pump cassette bank of claim 18 further comprising a plurality of incubation bags, each bag being attached to an outlet port on a respective one of the pump cassettes.

20. The pump cassette bank of claim 19 further comprising a bar code label on each of the incubation bags.

21. The pump cassette bank of claim 18 further comprising a break-away closure on the working solution inlet tube.

22. The pump cassette bank of claim 18 further comprising a second fluid inlet tube attached the second inlet port on each of the pump cassettes and further including a break-away closure on each of the second fluid inlet tubes.

23. A kit comprising:

a plurality of pump cassettes, each cassette having a first fluid inlet port in selective fluid communication with a first pump chamber; and

an inlet tube and associated distribution tubing for connecting the inlet tube to the first fluid inlet port of each of the pump cassettes.

24. A kit according to claim 23, further comprising:

a plurality of incubation bags for attachment respectively to an outlet port of each of the pump cassettes.

25. A kit according to claim 23, further comprising:

a four-port coupling for insertion in the distribution tubing such that the distribution tubing extends out from first and second oppositely located ports of the coupling, the first fluid inlet tube is connected to a third port of the coupling and the first fluid inlet port of a middle one of the pump cassettes is coupled to a fourth port of the coupling.