Dialysis systems and related components

• US 8,343,346 B2
• Filed: 12/23/2011
• Issued: 01/01/2013
• Est. Priority Date: 09/19/2007
• Status: Active Grant

• Current Assignee: Fresenius Medical Care Holdings Incorporated (Fresenius SE & Co. KGaA)
• Original Assignee: Fresenius Medical Care Holdings Incorporated (Fresenius SE & Co. KGaA)
• Inventors: Crnkovich, Martin Joseph, Jensen, Lynn E., Jensen, Melvin D., Lindley, DeLoy, Reihanifam, Mohsen, Weaver, Colin
• Primary Examiner(s): DRODGE, JOSEPH W
• Application Number:
  US13/336,262
• Publication Number:
  US 20120091053A1
• Time in Patent Office: 375 Days
• Field of Search: 210/321.6, 210/321.65, 210/321.71, 210/541, 210/542, 210/645, 210/646, 604/4.01, 604/5.01, 604/6.01, 604/29, 604/65, 604/6.09, 604/6.11, 285/18, 285/120.1, 137/343
• US Class Current: 210/321.6
• CPC Class Codes: A61M 1/3621 Extra-corporeal blood circuits single-needle circuits A61M1/30
• CPC Class Codes: A61M 1/36224 with sensing means or components thereof
• CPC Class Codes: A61M 1/36225 with blood pumping means or components thereof
• CPC Class Codes: A61M 1/36226 Constructional details of cassettes, e.g. specific details on material or shape
• CPC Class Codes: A61M 1/362261 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 1/362262 Details of incorporated reservoirs
• CPC Class Codes: A61M 1/3639 Blood pressure control, pressure transducers specially adapted therefor
• CPC Class Codes: A61M 1/3641 Pressure isolators
• CPC Class Codes: A61M 2205/12 with interchangeable cassettes forming partially or totally the fluid circuit
• CPC Class Codes: A61M 2205/3306 Optical measuring means
• CPC Class Codes: A61M 2209/082 Mounting brackets, arm supports for equipment
• CPC Class Codes: Y10T 137/6851 With casing, support, protector or static constructional installations

Abstract

A cassette is described for holding circuit components used with a hemodialysis machine.

Claims

1. An assembly comprising:

a device for retaining hemodialysis circuit components, the device comprising a body having a first portion and a second portion adjacent to the first portion, the first portion having a plurality of recesses configured to retain tubes, the second portion having a first slot along a top edge of the second portion and a second slot along a side edge of the second portion; and

a dialyzer held by the slot along the top edge of the second portion of the body and by the slot along the side edge of the second portion of the body.

2. The assembly of claim 1, wherein the device is configured so that the device can be disposed between a door and a main body of a dialysis machine when the door is closed.

3. The assembly of claim 1, wherein the first portion of the body is recessed relative to the second portion of the body.

4. The assembly of claim 1, wherein the dialyzer hangs from the body.

5. The assembly of claim 1, wherein the dialyzer is positioned parallel to a vertical axis of the body.

6. The assembly of claim 1, wherein the first slot is a substantially U-shaped slot.

7. The assembly of claim 6, wherein the second slot is a substantially U-shaped slot.

8. The assembly of claim 1, wherein the slots are configured so that, with the first fitting of the dialyzer disposed in the first slot, the second fitting of the dialyzer can be inserted into the second slot by rotating the dialyzer about the first fitting.

9. The assembly of claim 1, wherein the recesses are semicircular recesses.

10. The assembly of claim 1, wherein the first portion has an aperture including a portion with two parallel walls and a tapered portion, and the aperture securely retains an air release chamber.

11. A device for retaining hemodialysis circuit components, the device comprising:

a body having a first portion and a second portion adjacent to the first portion, the first portion having a plurality of recesses configured to retain tubes and a first aperture that intersects at least one of the recesses, the second portion having a first slot along a top edge of the second portion and a second slot along a side edge of the second portion, the first and second slots being configured to receive and retain first and second fittings, respectively, of a dialyzer to hold the dialyzer in a substantially fixed position relative to the body, the first and second fittings of the dialyzer being configured to connect to dialysate fluid lines.

12. The device of claim 11, wherein the device is configured so that the device can be disposed between a door and a main body of a dialysis machine when the door is closed.

13. The device of claim 11, wherein the first portion of the body is recessed relative to the second portion of the body.

14. The device of claim 11, wherein the slots are configured so that, when the first and second fittings of the dialyzer are disposed in the slots during use, the dialyzer hangs from the body.

15. The device of claim 11, wherein the slots are configured so that, when the first and second fittings of a dialyzer are disposed in the slots during use, the dialyzer is positioned parallel to a vertical axis of the body.

16. The device of claim 11, wherein the first slot is a substantially U-shaped slot.

17. The device of claim 16, wherein the second slot is a substantially U-shaped slot.

18. The device of claim 11, wherein the slots are configured so that, with the first fitting of the dialyzer disposed in the first slot, the second fitting of the dialyzer can be inserted into the second slot by rotating the dialyzer about the first fitting.

19. The device of claim 11, wherein the recesses are semicircular recesses.

20. The device of claim 11, wherein the first portion has a second aperture including a portion with two parallel walls and a tapered portion such that the second aperture can securely retain an air release chamber.

21. A device for retaining hemodialysis components, the device comprising:

a body forming a recessed region and an aperture that intersects the recessed region, the recessed region being configured to retain a blood line, the aperture being configured to receive a hemodialysis component that is in fluid communication with the blood line, the body further forming first and second slots configured to receive and retain first and second fittings, respectively, of a dialyzer to hold the dialyzer in a substantially fixed position relative to the body, the first and second fittings of the dialyzer being configured to connect to dialysate fluid lines.

22. The device of claim 21, wherein the body, the blood line, and the hemodialysis component are configured to be disposed between a main body and a door of a hemodialysis machine when the door is closed.

23. The device of claim 21, wherein the body comprises a first portion that forms the recessed region and the aperture, and a second portion that forms the slots, the first portion of the body being recessed relative to the second portion of the body.

24. The device of claim 21, wherein the slots are configured so that, when the first and second fittings of the dialyzer are disposed in the slots during use, the dialyzer hangs from the body.

25. The device of claim 21, wherein the slots are configured so that, when the first and second fittings of the dialyzer are disposed in the slots during use, the dialyzer is positioned parallel to a vertical axis of the body.

26. The device of claim 21, wherein the first slot is a substantially U-shaped slot.

27. The device of claim 26, wherein the second slot is a substantially U-shaped slot.

28. The device of claim 21, wherein the slots are configured so that, with the first fitting of the dialyzer disposed in the first slot, the second fitting of the dialyzer can be inserted into the second slot by rotating the dialyzer about the first fitting.

29. The device of claim 21, wherein the hemodialysis component is an air release chamber.

30. A device for retaining hemodialysis circuit components, the device comprising:

a body having a first portion and a second portion adjacent to the first portion, the first portion having a plurality of recesses configured to retain tubes and a first aperture that intersects at least one of the recesses, the second portion having a first slot along a top edge of the second portion and a second slot along a side edge of the second portion, the first and second slots being configured to receive and retain first and second fittings, respectively, of a dialyzer to hold the dialyzer in a substantially fixed position relative to the body,

wherein the slots are configured so that, with the first fitting of the dialyzer disposed in the first slot, the second fitting of the dialyzer can be inserted into the second slot by rotating the dialyzer about the first fitting.

31. A device for retaining hemodialysis components, the device comprising:

a body forming a recessed region and an aperture that intersects the recessed region, the recessed region being configured to retain a blood line, the aperture being configured to receive a hemodialysis component that is in fluid communication with the blood line, the body further forming first and second slots configured to receive and retain first and second fittings, respectively, of a dialyzer to hold the dialyzer in a substantially fixed position relative to the body,

wherein the slots are configured so that, with the first fitting of the dialyzer disposed in the first slot, the second fitting of the dialyzer can be inserted into the second slot by rotating the dialyzer about the first fitting.