Medical functional device, treatment apparatus and method

• US 9,107,997 B2
• Filed: 02/09/2011
• Issued: 08/18/2015
• Est. Priority Date: 02/10/2010
• Status: Active Grant

• Current Assignee: Fresenius Medical Care Deutschland GmbH (Fresenius SE & Co. KGaA)
• Original Assignee: Fresenius Medical Care Deutschland GmbH (Fresenius SE & Co. KGaA)
• Inventors: Heide, Alexander, Klewinghaus, Juergen, Partenfelder, Robin, Peters, Arne, Wiktor, Christoph
• Primary Examiner(s): Wiest, Philip R
• Assistant Examiner(s): KLEIN, BENJAMIN JACOB
• Application Number:
  US13/578,301
• Publication Number:
  US 20130025692A1
• Time in Patent Office: 1,651 Days
• Field of Search: 604 401- 616
• US Class Current: 1/1
• CPC Class Codes: A61M 1/1524 the interface providing means for actuating on functional elements of the cassette, e.g. plungers
• CPC Class Codes: A61M 1/156 Constructional details of the cassette, e.g. specific details on material or shape
• CPC Class Codes: A61M 1/159 specially adapted for peritoneal dialysis
• CPC Class Codes: A61M 1/16 with membranes
• CPC Class Codes: A61M 1/362227 the interface providing means for actuating on functional elements of the cassette, e.g. plungers
• CPC Class Codes: A61M 1/36226 Constructional details of cassettes, e.g. specific details on material or shape
• CPC Class Codes: A61M 60/113 in other functional devices, e.g. dialysers or heart-lung machines
• CPC Class Codes: A61M 60/279 Peristaltic pumps, e.g. roller pumps
• 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 60/847 arranged in a cassette
• CPC Class Codes: Y10T 137/0318 Processes
• CPC Class Codes: Y10T 137/8593 Systems

Abstract

A medical functional device includes at least one first fluid system for receiving at least one medical fluid, at least one first conveying device for conveying the medical fluid, at least one second fluid system for receiving at least one operating fluid, and at least one second conveying device for operating the at least first conveying device, in which the first conveying device is arranged such as to be actuated by means of the operating fluid. A treatment apparatus and a method are also described.

Claims

1. A medical functional device, comprising

at least one first fluid system configured for receiving at least one medical fluid;

at least one first conveying device configured for conveying the at least one medical fluid;

at least one second fluid system configured for receiving at least one operating fluid; and

at least one second conveying device configured for operating the at least one first conveying device;

wherein the at least one first conveying device is arranged such as to be actuated by the at least one operating fluid,

wherein the medical functional device is configured as at least one of a disposable cassette, a blood cassette, a dialysate cassette for extracorporeal blood treatment, or a cassette for peritoneal dialysis,

wherein the at least one second conveying device is a centrifugal pump.

2. The medical functional device according to claim 1, wherein the at least one first conveying device is arranged such that it is one of connected or connectable with at least one of a pressure side or a suction side of the second conveying device.

3. The medical functional device according to claim 2, wherein a plurality of the at least one first conveying device are arranged such that they are functionally one of connected or connectable in parallel with at least one of the pressure side or the suction side of the second conveying device.

4. The medical functional device according to claim 2, wherein a plurality of the at least one first conveying device are arranged such that they are functionally one of connected or connectable in series connection with at least one of the pressure side or the suction side of the second conveying device.

5. The medical functional device according to claim 1, wherein the first conveying device is a displacement pump which is selected from the group consisting of membrane pumps, piston pumps, flexible tube pumps and peristaltic pumps.

6. The medical functional device according to claim 1, wherein the second conveying device comprises at least one rotational section which is supported magnetically.

7. The medical functional device according to claim 6, wherein the rotational section is configured such as to be operated magnetically by external actuation.

8. The medical functional device according to claim 1, wherein the first fluid system and the second fluid system are separated from each other in a fluid-tight manner.

9. The medical functional device according to claim 1, wherein the medical fluid includes at least one of blood, dialyzing liquid, substituate liquid, drugs, or drug preparations.

10. The medical functional device according claim 1, wherein the operating fluid includes at least one of dialyzing liquid, substituate liquid, sterile compressed air, hydraulic oil, or water.

11. The medical functional device according to claim 1, wherein the at least one second conveying device is part of or integrated into the medical functional device.

12. The medical functional device according to claim 1, wherein the at least one second conveying device is arranged inside the medical functional device.

13. A treatment apparatus for treating medical fluids, comprising:

at least one control device configured to operate the at least one second conveying device of the medical functional device according to claim 1.

14. The treatment apparatus according to claim 13, wherein the control device is configured to operate the second conveying device by a magnetic actuation interface.

15. The treatment apparatus according to claim 13, wherein the apparatus is one of functionally couplable with or further comprises the medical functional device according to claim 1.

16. The treatment apparatus according to claim 13, wherein the apparatus is one of a blood treatment apparatus or an infusion apparatus.

17. A method for conveying at least one medical fluid, comprising:

using one of (a) at least one medical functional device according to claim 1 or (b) at least one treatment apparatus according to claim 13.

18. The method according to claim 17, further comprising:

operating the at least one second conveying device configured for conveying the at least one operating fluid within the second fluid system in order to operate the first conveying device for conveying the medical fluid.

19. The method according to claim 17, further comprising:

simultaneously operating at least one blood pump and at least one dialysate pump in a controlled manner.

20. The method according to claim 17, further comprising:

simultaneously operating one of (a) at least one heparin pump or (b) a heparin-containing solution pump in a controlled manner.

21. The method according to claim 17, further comprising:

simultaneously operating at least one citrate-containing solution pump and at least one further calcium-containing solution pump in a controlled manner.

22. The method according to claim 17, further comprising:

simultaneously operating at least one substituate pump in a controlled manner.

23. The method according to claim 17, further comprising:

simultaneously operating at least one of (a) at least one predilution pump or (b) at least one postdilution pump in a controlled manner.

24. The method according to claim 17, further comprising:

simultaneously operating at least one pump for infusion of a drug into an extracorporeal blood circuit in a controlled manner.

25. The method according to claim 17, further comprising:

controlling at least one valve in operating fluid lines on at least one of inlet or outlet sides of the at least one first conveying device.