CASSETTE SYSTEM INTEGRATED APPARATUS

• US 20180372084A1
• Filed: 04/23/2018
• Published: 12/27/2018
• Est. Priority Date: 02/27/2007
• Status: Abandoned Application

• Current Assignee: Deka Products Limited Partnership
• Original Assignee: Deka Products Limited Partnership
• Inventors: Grant, Kevin L., Dale, James D., Demers, Jason A., Wilt, Michael J.
• Application Number:
  US15/960,426
• Publication Number:
  US 20180372084A1
• Time in Patent Office: Days
• CPC Class Codes: A61M 1/154 with sensing means or components thereof
• CPC Class Codes: A61M 1/155 with treatment-fluid pumping means or components thereof
• CPC Class Codes: A61M 1/1561 at least one cassette surface or portion thereof being flexible, e.g. the cassette having a rigid base portion with preformed channels and being covered with a foil
• CPC Class Codes: A61M 1/15625 the reservoirs acting as balance chambers
• CPC Class Codes: A61M 1/1565 Details of valves
• CPC Class Codes: A61M 1/16 with membranes
• CPC Class Codes: A61M 1/1605 Physical characteristics of the dialysate fluid
• CPC Class Codes: A61M 1/1639 linked by membranes
• CPC Class Codes: A61M 1/1656 Apparatus for preparing dialysates
• CPC Class Codes: A61M 1/1664 with temperature control
• CPC Class Codes: A61M 1/1666 by dissolving solids
• CPC Class Codes: A61M 1/287 Dialysates therefor
• CPC Class Codes: A61M 2205/12 with interchangeable cassettes forming partially or totally the fluid circuit
• CPC Class Codes: A61M 2205/128 with incorporated valves
• CPC Class Codes: A61M 2205/3317 Electromagnetic, inductive or dielectric measuring means
• CPC Class Codes: A61M 2205/3324 PH measuring means
• CPC Class Codes: A61M 2205/3368 Temperature
• CPC Class Codes: A61M 60/113 in other functional devices, e.g. dialysers or heart-lung machines
• CPC Class Codes: A61M 60/268 the displacement member being flexible, e.g. membranes, diaphragms or bladders
• CPC Class Codes: A61M 60/37 Haemodialysis, haemofiltration or diafiltration
• CPC Class Codes: A61M 60/427 : the force acting on the blood contacting member being hydraulic or pneumatic
• CPC Class Codes: A61M 60/43 : using vacuum at the blood pump, e.g. to accelerate filling
• CPC Class Codes: A61M 60/837 : Aspects of flexible displacement members, e.g. shapes or materials
• CPC Class Codes: A61M 60/847 : arranged in a cassette
• CPC Class Codes: A61M 60/849 : Disposable parts
• CPC Class Codes: A61M 60/851 : Valves
• CPC Class Codes: A61M 60/892 : Active valves, i.e. actuated by an external force
• CPC Class Codes: A61M 60/894 : Passive valves, i.e. valves actuated by the blood
• CPC Class Codes: F04B 13/02 : of two or more fluids at the same time
• CPC Class Codes: F04B 23/06 : the pumps being all of reciprocating positive-displacement type
• CPC Class Codes: F04B 41/06 : Combinations of two or more pumps
• CPC Class Codes: F04B 43/00 : Machines, pumps, or pumping installations having flexible working members pumps or pumping installations specially adapted for elastic fluids F04B45/00
• CPC Class Codes: F04B 43/026 : each plate-like pumping flexible member working in its own pumping chamber
• CPC Class Codes: F04B 43/06 : Pumps having fluid drive
• CPC Class Codes: F04B 43/0736 : with two or more pumping chambers in parallel
• CPC Class Codes: F04B 45/02 : having bellows
• CPC Class Codes: F04B 45/0536 : the actuating fluid being controlled by one or more valves
• CPC Class Codes: F04B 49/02 : Stopping, starting, unloading or idling control
• 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 53/10 : Valves; Arrangement of valves
• CPC Class Codes: F04B 53/16 : Casings; Cylinders; Cylinder liners or heads; Fluid connections
• CPC Class Codes: F04B 7/02 : the valving being fluid-actuated
• CPC Class Codes: F04B 9/109 : having plural pumping chambers
• CPC Class Codes: F17D 3/00 : Arrangements for supervising or controlling working operations
• CPC Class Codes: Y02A 90/10 : Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
• CPC Class Codes: Y10T 137/0324 : With control of flow by a condition or characteristic of a fluid
• CPC Class Codes: Y10T 137/0379 : By fluid pressure
• CPC Class Codes: Y10T 137/2521 : Flow comparison or differential response
• CPC Class Codes: Y10T 137/85978 : With pump
• CPC Class Codes: Y10T 137/86139 : Serial

Abstract

A cassette integrated system. The cassette integrated system includes a mixing cassette, a balancing cassette, a middle cassette fluidly connected to the mixing cassette and the balancing cassette and at least one pod. The mixing cassette is fluidly connected to the middle cassette by at least one fluid line and the middle cassette is fluidly connected to the balancing cassette by at least one fluid line. The at least one pod is connected to at least two of the cassettes wherein the pod is located in an area between the cassettes.

Claims

1-6. -6. (canceled)

7. A cassette assembly comprising a first, second and third cassette, each said cassette comprising one or more pneumatically actuated diaphragm pumps or diaphragm valves, the second cassette being interposed between the first and third cassettes, and said first, second and third cassettes being fluidly interconnected by a plurality of rigid conduits;

wherein one or more the plurality of rigid conduits are configured;

to carry fluid between a fluid flowpath of the first cassette and a first fluid flowpath of the middle cassette, and to carry fluid between a fluid flowpath of the third cassette and a second fluid flowpath of the middle cassette, and

to hold the first and third cassettes at fixed spaces from the second cassette.

8. The cassette assembly of claim 7, wherein at least one of the one or more of the plurality of rigid conduits includes a check valve to ensure unidirectional fluid flow.

9. The cassette assembly of claim 7, wherein the first and third cassettes are held against the second cassette through the rigid conduits by a plurality of clamps.

10. The cassette assembly of claim 7, wherein the first cassette and second cassette define a first fixed space of the fixed spaces, and the third and second cassette define a second fixed space of the fixed spaces, and said first and second fixed spaces are occupied by a plurality of pods, each said pod having a rigid fluid connection to the first cassette and a separate rigid fluid connection to the second cassette if located in the first fixed space, or having a rigid fluid connection to the third cassette and a separate rigid fluid connection to the second cassette if located in the second fixed space.

11. The cassette assembly of claim 10, wherein at least one of the plurality of pods is a diaphragm based pod pump, and wherein a first rigid fluid connection of the pod pump is configured to carry pneumatic pressure to actuate the pod pump, and a second rigid fluid connection of the pod pump is configured to carry fluid pumped by the pod pump.

12. The cassette assembly of claim 10, wherein at least one of the plurality of pods is a fluid balancing pod comprising a diaphragm separating two variable fluid chambers, and wherein a first rigid fluid connection of the balancing pod is configured to carry a first fluid between a first variable chamber of the balancing pod and the second cassette, and a second rigid fluid connection of the balancing pod is configured to carry a second fluid between a second variable chamber of the balancing pod and the first cassette or the third cassette.

13. The cassette assembly of claim 10, wherein at least one of the plurality of pods is a mixing pod comprising a single fluid chamber, and wherein a first rigid connection of the mixing pod is configured to carry a fluid between the single fluid chamber and the second cassette, and a second rigid connection of the mixing pod is configured to carry the fluid between the single fluid chamber and the first cassette or the third cassette.