Modular assembly for a portable hemodialysis system

• US 10,441,697 B2
• Filed: 10/22/2013
• Issued: 10/15/2019
• Est. Priority Date: 02/27/2007
• Status: Active Grant

• Current Assignee: Deka Products Limited Partnership
• Original Assignee: Deka Products Limited Partnership
• Inventors: Kamen, Dean, Demers, Jason A., Wilt, Michael J., Grant, Kevin L., Prescott, Shannon, Collins, David E.
• Primary Examiner(s): Fortuna, Ana M
• Application Number:
  US14/059,806
• Publication Number:
  US 20140102958A1
• Time in Patent Office: 2,184 Days
• CPC Class Codes: A61M 1/16 with membranes
• CPC Class Codes: A61M 1/1601 Control or regulation
• CPC Class Codes: A61M 1/1633 with more than one dialyser unit
• CPC Class Codes: A61M 1/1639 linked by membranes
• CPC Class Codes: A61M 1/1656 Apparatus for preparing dialysates
• CPC Class Codes: A61M 1/1668 Details of containers
• CPC Class Codes: A61M 1/1682 both machine and membrane module, i.e. also the module blood side
• CPC Class Codes: A61M 1/1686 by heat
• CPC Class Codes: A61M 1/1696 with dialysate regeneration
• CPC Class Codes: A61M 1/34 Filtering material out of the blood by passing it through a membrane, i.e. hemofiltration or diafiltration
• CPC Class Codes: A61M 1/3403 Regulation parameters
• CPC Class Codes: A61M 1/3406 Physical characteristics of the filtrate, e.g. urea
• CPC Class Codes: A61M 1/36 Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
• CPC Class Codes: A61M 1/3607 Regulation parameters
• CPC Class Codes: A61M 1/3609 Physical characteristics of the blood, e.g. haematocrit, urea
• CPC Class Codes: A61M 1/36225 with blood pumping means or components thereof
• CPC Class Codes: A61M 1/3623 Means for actively controlling temperature of blood
• CPC Class Codes: A61M 1/3627 Degassing devices; Buffer reservoirs; Drip chambers; Blood filters
• CPC Class Codes: A61M 1/842 rotating continuously rotating surgical cutting instruments A61B17/32002
• CPC Class Codes: A61M 1/85 with gas or fluid supply means, e.g. for supplying rinsing fluids or anticoagulants for negative pressure wound therapy A61M1/92, A61M1/94; combined with tracheal tubes A61M16/0463; dental instruments with combined rinsing and aspirating A61C17/0208
• CPC Class Codes: A61M 2205/12 : with interchangeable cassettes forming partially or totally the fluid circuit
• CPC Class Codes: A61M 2205/15 : Detection of leaks
• CPC Class Codes: A61M 2205/3331 : Pressure; Flow
• CPC Class Codes: A61M 2205/3368 : Temperature
• CPC Class Codes: A61M 2205/3379 : Masses, volumes, levels of fluids in reservoirs, flow rates
• CPC Class Codes: A61M 2205/502 : User interfaces, e.g. screens or keyboards
• CPC Class Codes: A61M 2205/58 : Means for facilitating use, e.g. by people with impaired vision
• CPC Class Codes: A61M 2209/08 : Supports for equipment
• CPC Class Codes: A61M 39/1011 : Locking means for securing connection; Additional tamper safeties A61M39/16 takes precedence
• CPC Class Codes: A61M 39/105 : Multi-channel connectors or couplings, e.g. for connecting multi-lumen tubes multi-channel connectors in general F16L37/56
• CPC Class Codes: A61M 60/113 : in other functional devices, e.g. dialysers or heart-lung machines
• CPC Class Codes: A61M 60/37 : Haemodialysis, haemofiltration or diafiltration
• CPC Class Codes: A61M 60/40 : Details relating to driving
• 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: B01D 61/30 : Accessories; Auxiliary operation
• CPC Class Codes: B01D 61/32 : Controlling or regulating
• CPC Class Codes: G16H 20/40 : relating to mechanical, radiation or invasive therapies, e.g. surgery, laser therapy, dialysis or acupuncture
• CPC Class Codes: G16H 40/63 : for local operation

Abstract

A modular assembly for a portable hemodialysis system may include a dialysis unit, e.g., that contains suitable components for performing hemodialysis, such as a dialyzer, one or more pumps to circulate blood through the dialyzer, a source of dialysate, and one or more pumps to circulate the dialysate through the dialyzer, and a power unit having a housing that contains suitable components for providing operating power to the pumps of the dialysis unit. The power unit may be selectively connected to the dialysis unit and provide power (e.g., pneumatic power in the form of pressure and/or vacuum) to the dialysis unit for the pumps when connected to the dialysis unit, but may be incapable of providing power to the dialysis unit when disconnected from the dialysis unit. The dialysis unit and the power unit are sized and weighted to each be carried by hand by a human.

Claims

1. A modular assembly system for a portable hemodialysis unit, comprising:

a dialysis unit including a dialysis unit housing that contains components for performing hemodialysis, including a dialyzer mount with fluidic connections for a dialyzer, a blood pump mounting section with pneumatic connections for operation of one or more pneumatically driven blood pumps to circulate blood through a dialyzer when mounted in the dialysis unit housing, one or more pneumatically driven dialysate pumps to circulate a dialysate through the dialyzer, a dialysate heater, and one or more electronic controllers for controlling the one or more blood and dialysate pumps; and

a pneumatic power unit within a pneumatic power unit housing configured to provide pneumatic power to the dialysis unit via mating pneumatic ports between the pneumatic power unit housing and the dialysis unit housing;

wherein

the pneumatic power unit housing is reversibly connectable to the dialysis unit housing via a mechanical and pneumatic connection to the dialysis unit.

2. The system of claim 1, wherein the pneumatic power unit housing is reversibly connectable to the dialysis unit housing via a manually operable connection handle, allowing for the interchangeable mechanical and pneumatic connection of a second pneumatic power unit housing with the dialysis unit housing.

3. The system of claim 1, wherein pneumatic power unit includes one or more electrically operated pumps to provide positive or negative pneumatic pressure, and wherein the pneumatic power unit is connectable to the dialysis unit via an electrical power connection.

4. The system of claim 3, wherein the dialysis unit is configured to supply electrical power to the pneumatic power unit via the electrical power connection, upon connection of the pneumatic power unit housing to the dialysis unit housing.

5. The system of claim 4, wherein the pneumatic power unit housing is reversibly connectable to the dialysis unit housing via a manually operable connection handle, allowing for the interchangeable mechanical, pneumatic and electrical power connection of a second pneumatic power unit housing with the dialysis unit housing.

6. The system of claim 3, wherein the dialysis unit is configured to provide electronic control to the pneumatic power unit via an electronic communications connection upon connection of the pneumatic power unit housing to the dialysis unit housing.

7. The system of claim 6, wherein the pneumatic power unit housing is reversibly connectable to the dialysis unit housing via a manually operable connection handle, allowing for the interchangeable mechanical, pneumatic, electrical power and electronic communications connection of a second pneumatic power unit housing with the dialysis unit housing.

8. The system of claim 3, wherein the pneumatic power unit and the dialysis unit are configured to be electrically powered through a single residential electrical outlet.

9. The system of claim 3, wherein the pneumatic power unit includes one or more pneumatic reservoirs within the pneumatic power unit housing for storing positive or negative pneumatic pressure generated by the one or more pumps.

10. The system of claim 9, wherein the one or more pneumatic reservoirs comprise a positive pneumatic pressure reservoir and a negative pneumatic pressure reservoir, and wherein the pneumatic ports include a positive pressure pneumatic port and a negative pressure pneumatic port.

11. The system of claim 10, wherein the one or more pneumatic reservoirs comprise a first positive pressure reservoir and a second positive pressure reservoir, wherein the pneumatic power unit is configured to charge the second positive pressure reservoir with a second range of pressures different from the first range of pressures, and wherein the pneumatic ports include positive pressure pneumatic ports for each of the first and second positive pressure reservoirs.

12. A modular assembly system for a portable hemodialysis unit, comprising:

a dialysis unit including a dialysis unit housing that contains components for performing hemodialysis, including a dialyzer mount with fluidic connections for a dialyzer, a blood pump mounting section with pneumatic connections for operation of one or more pneumatically driven blood pumps for circulating blood through a dialyzer when mounted in the dialysis unit housing, one or more pneumatically driven dialysate pumps for circulating dialysate through the dialyzer, a dialysate heater, and one or more electronic controllers for controlling the one or more blood and dialysate pumps; and

a pneumatic power unit within a pneumatic power unit housing configured to provide pneumatic power to the dialysis unit via mating pneumatic ports between the pneumatic power unit housing and the dialysis unit housing;

wherein the pneumatic power unit includes one or more electrically operated pumps to provide positive or negative pneumatic pressure, and wherein the pneumatic power unit housing is reversibly connectable via a mechanical, pneumatic and electrical power connection to the dialysis unit housing.

13. The system of claim 12, wherein the pneumatic power unit housing is reversibly connectable to the dialysis unit housing by a manually operable connection handle, allowing for the interchangeable mechanical, pneumatic and electrical power connection of a second pneumatic power unit housing with the dialysis unit housing.

14. The system of claim 12, wherein the dialysis unit is configured to supply electrical power to the pneumatic power unit via the electrical power connection, upon connection of the pneumatic power unit housing to the dialysis unit housing.

15. The system of claim 14, wherein the pneumatic power unit housing is reversibly connectable to the dialysis unit housing via a manually operable connection handle, allowing for the interchangeable mechanical, pneumatic and electrical power connection of a second pneumatic power unit housing with the dialysis unit housing.

16. The system of claim 12, wherein the dialysis unit is configured to provide electronic control to the pneumatic power unit via an electronic communications connection, upon connection of the pneumatic power unit housing to the dialysis unit housing.

17. The system of claim 16, wherein the pneumatic power unit housing is reversibly connectable to the dialysis unit housing via a manually operable connection handle, allowing for the interchangeable mechanical, pneumatic, electrical power and electronic communications connection of a second pneumatic power unit housing with the dialysis unit housing.

18. A modular assembly system for a portable hemodialysis unit, comprising:

dialysis unit including a dialysis unit housing that contains components for performing hemodialysis, including a dialyzer mount with fluidic connections for a dialyzer, a blood pump mounting section with pneumatic connections for operation of one or more pneumatically driven blood pumps for circulating blood through a dialyzer when mounted in the dialysis unit housing, one or more pneumatically driven dialysate pumps for circulating dialysate through the dialyzer, a dialysate heater, and one or more electronic controllers for controlling the one or more blood and dialysate pumps; and

a pneumatic power unit within a pneumatic power unit housing configured to provide pneumatic power to the dialysis unit via mating pneumatic ports between the pneumatic power unit housing and the dialysis unit housing;

wherein the pneumatic power unit includes one or more electrically operated pumps to provide positive or negative pneumatic pressure, wherein the dialysis unit comprises an electronic controller configured to provide electronic control to the pumps of the pneumatic power unit, and wherein the pneumatic power unit housing is reversibly connectable via a mechanical, pneumatic, electrical power and electronic communications connection to the dialysis unit housing.

19. The system of claim 18, wherein the pneumatic power unit housing is reversibly connectable to the dialysis unit housing via a manually operable connection handle, allowing for the interchangeable mechanical, pneumatic, electrical power and electronic communications connection of a second pneumatic power unit housing with the dialysis unit housing.

20. The system of claim 18, wherein the dialysis unit is configured to supply electrical power to the pneumatic power unit via the electrical power connection, upon connection of the pneumatic power unit housing to the dialysis unit housing.