Device for connecting multi-functional disposable cassette to extracorporeal blood treatment apparatus

• US 9,943,634 B2
• Filed: 03/09/2010
• Issued: 04/17/2018
• Est. Priority Date: 03/10/2009
• Status: Active Grant

• Current Assignee: Fresenius Medical Care Deutschland GmbH (Fresenius Medical Care AG)
• Original Assignee: Fresenius Medical Care Deutschland GmbH (Fresenius Medical Care AG)
• Inventors: Haecker, Juergen, Lapp, Uwe, Waeber, Udo
• Primary Examiner(s): Cozart, Jermie
• Application Number:
  US13/255,286
• Publication Number:
  US 20120030921A1
• Time in Patent Office: 2,961 Days
• Field of Search: 29428, 29700, 604 28, 604 29, 604 42, 4174772
• CPC Class Codes: A61M 1/14 Dialysis systems; Artificial kidneys; Blood oxygenators semi-permeable membranes characterised by the material, manufacturing processes therefor B01D71/00 ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
• CPC Class Codes: A61M 1/3621 Extra-corporeal blood circuits single-needle circuits A61M1/30
• CPC Class Codes: A61M 1/3622 with a cassette forming partially or totally the blood circuit
• 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 2205/12 with interchangeable cassettes forming partially or totally the fluid circuit
• CPC Class Codes: A61M 2205/127 with provisions for heating or cooling
• CPC Class Codes: Y10T 29/49826 Assembling or joining
• CPC Class Codes: Y10T 403/32 Articulated members
• CPC Class Codes: Y10T 403/32254 Lockable at fixed position
• CPC Class Codes: Y10T 403/32631 Universal ball and socket
• CPC Class Codes: Y10T 403/32975 Rotatable

Abstract

The present invention relates to a device for connecting at least one external functional device to an arrangement, wherein the device includes at least one first contact portion and at least one second contact portion for receiving the external functional device between the first contact portion and the second contact portion, and at least the first contact portion or the second contact portion is movable. It further relates to a method for connecting at least one external functional device to an arrangement by using the device of the present invention, as well as an arrangement which includes at least one device of the present invention.

Claims

1. A device for connecting a multi-functional disposable cassette to an extracorporeal blood treatment apparatus, wherein the device comprises:

at least one receptacle having at least one first contact portion and at least one second contact portion for receiving the multi-functional disposable cassette between the first contact portion and the second contact portion, wherein the first contact portion and the second contact portion are rotatably mounted about differing axes of rotation,

wherein one of the at least one first or second contact portions comprises at least one actuator-sensor plate,

wherein the at least one actuator-sensor plate comprises at least two actuators and at least two sensors, and wherein each actuator and each sensor is configured to couple to and interact with the multi-functional disposable cassette while the multi-functional disposable cassette is between the first contact portion and the second contact portion.

2. The device according to claim 1, further comprising at least one peripheral support, wherein the first contact portion is mounted in an interior of the support.

3. The device according to claim 2, wherein the first contact portion, the second contact portion, or both is connected to the support by an articulation.

4. The device according to claim 1, further comprising one or more positioning devices on at least one of the first contact portion and the second contact portion, the one or more positioning devices defining a position at which the multi-functional disposable cassette is received relative to the at least one of the first contact portion and the second contact portion.

5. The device according to claim 4, wherein an axis of rotation of the first contact portion and an axis of rotation of the second contact portion are disposed parallel with each other.

6. The device according to claim 1, wherein an axis of rotation of the first contact portion and an axis of rotation of the second contact portion are disposed parallel with each other.

7. The device according to claim 1, wherein at least one contact surface of the first contact portion, of the second contact portion, or both and at least one contact surface of the multi-functional disposable cassette are adapted to lie on each other in a planar manner when the external functional device is received within the receptacle.

8. The device according to claim 1, further comprising at least one pressing device for pressing the second contact portion toward the first contact portion.

9. The device according to claim 8, wherein the pressing device is chosen from the group consisting of:

a pressing actuator, an electrical pressing device, a motor actuator, a pneumatic pressing device, a valve, a piston, and combinations thereof.

10. The device according to claim 1, further comprising at least one locking device for fixation of a pressed condition of the multi-functional disposable cassette between the first contact portion and the second contact portion.

11. The device according to claim 10, wherein the locking device includes at least one sensor device for detecting a position, a condition, or both of the first contact portion, of the second contact portion, or of both.

12. The device according to claim 1, wherein the first contact portion, the second contact portion, an articulation, or any combination thereof includes at least one opening for receiving linking elements for functionally linking the multi-functional disposable cassette to the extracorporeal blood treatment apparatus.

13. The device according to claim 1, wherein the first contact portion, the second contact portion, or both includes at least one transparent portion.

14. The device according to claim 1, wherein the first contact portion includes the actuator-sensor plate and at least one positioning device for positioning the multi-functional disposable cassette inside the device.

15. The device according to claim 1, further comprising at least one sealing device disposed between at least the first contact portion and the second contact portion.

16. The device according to claim 1, wherein the multi-functional disposable cassette is a blood-conducting cassette.

17. The device according to claim 1, wherein said first contact portion comprises the at least one actuator-sensor plate and the second contact portion comprises a door or a lid.

18. The device according to claim 1, wherein at least one of the first contact portion and the second contact portion is configured to oscillate in at least two directions.

19. An extracorporeal blood treatment apparatus, comprising:

at least one receptacle having at least one first contact portion and at least one second contact portion for receiving a multi-functional disposable cassette between the first contact portion and the second contact portion, wherein the first contact portion and the second contact portion are rotatably mounted about differing axes of rotation

wherein one of the at least one first or second contact portions comprises at least one actuator-sensor plate,

wherein the at least one actuator-sensor plate comprises at least two actuators and at least two sensors, and wherein each actuator and each sensor is configured to couple to and interact with the multi-functional disposable cassette while the multi-functional disposable cassette is between the first contact portion and the second contact portion, and

wherein the extracorporeal blood treatment apparatus is a dialysis apparatus, a hemodialysis apparatus, a hemofiltration apparatus, or a hemodiafiltration apparatus.