Cassette module having an integrated centrifugal pump unit

Patent metadata

Field	Value
Publication number	US-10183103-B2
Application number	US-201414787114-A
Country	US
Kind code	B2
Filing date	Apr 16, 2014
Priority date	Apr 25, 2013
Publication date	Jan 22, 2019
Grant date	Jan 22, 2019

Abstract

The invention relates to a cassette module for processing blood and therapeutic fluids in an extracorporeal blood treatment, dialysis or infusion technology, comprising a base body ( 302 ), with a first side and a second side, fluid channels integrated into the base body, a receiving unit ( 304 ) to receive a centrifugal pump means for delivering fluids, characterized in that at least some of the fluid channels are arranged on a first side of the base body, and the receiving unit for the centrifugal pump means is arranged on the second side, and the receiving unit for the centrifugal pump means is in fluid connection with the fluid channels on the first side during operation.

First claim

The invention claimed is:

1. An arrangement comprising a cassette module and a machine console of a machine for extracorporeal blood treatment or dialysis, the cassette module including a cassette that has a base body with
a receiving unit for a magnetic centrifugal pump means on a second side of the base body which is assigned to the machine console in the arrangement,
fluid channels on a first side of the cassette module which face away from the machine console in the arrangement,
a molded part on the machine console which is in form-fitting engagement with a complementary molded part on the cassette, and
an impeller drive which is integrated into the machine console, such that the cassette in the arrangement is in form-fitting and magnetic engagement with the centrifugal pump means of the cassette module.

2. The arrangement according to claim 1 , wherein the receiving unit is integrally connected to the base body.

3. The arrangement according to claim 2 , wherein the base body together with the receiving unit for the centrifugal pump means and the fluid channels is an injection-molded part.

4. The arrangement according to claim 3 , wherein the base body with the fluid channels and the receiving unit for the centrifugal pump means form two separate parts, which are connected to one another.

5. The arrangement according to claim 1 , wherein the fluid channels are partially formed by side walls, which are mounted on the base body at a right angle to an extension surface of the base body and border sides of the fluid channels.

6. The arrangement according to claim 1 , wherein the receiving unit for the centrifugal pump means on the second side of the base body formed in part by side walls, which are mounted on the base body at a right angle to an extension surface of the base body and border sides of the receiving unit.

7. The arrangement according to claim 1 , wherein the fluid channels on the first side or fluid channels on the second side of the base body are covered by a film and together with vertical side walls bordering sides of the fluid channels are at least partially connected and border the fluid channels.

8. The arrangement according to claim 7 , wherein multiple fluid channels on one side of the base body are covered by a film and together with the bordering vertical side walls at the sides of the fluid channels are at least partially connected and border the fluid channels.

9. The arrangement according to claim 1 , wherein the receiving unit of the centrifugal pump means forms a receiving pot in which a rotor of the centrifugal pump means is accommodated, and vertical side walls are covered with a film and are connected and border the receiving pot.

10. The arrangement according to claim 1 , wherein said receiving unit for the centrifugal pump means is in fluid connection with the fluid channels that are arranged on the first side of the base body during operation.

11. The arrangement according to claim 1 , wherein said fluid channels arranged on the first side of the base body form inlet and outlet lines for fluid flows to and from the centrifugal pump means.

12. A method of using a cassette module within an arrangement that includes a machine console of a machine for extracorporeal blood treatment or dialysis, the cassette module including a cassette that has a base body with a receiving unit for a magnetic centrifugal pump means on a second side of the base body which is assigned to the machine console in the arrangement, fluid channels on a first side of the cassette module which face away from the machine console in the arrangement, a molded part on the machine console which is in form-fitting engagement with a complementary molded part on the cassette, and an impeller drive which is integrated into the machine console, the method comprising bringing the cassette module into engagement with the machine console, and inserting the magnetic centrifugal pump means into the receiving unit such that the cassette in the arrangement is in form-fitting and magnetic engagement with the centrifugal pump means of the cassette module.

Assignees

• Fresenius Medical Care Deutschland Gmbh

Inventors

• Wiktor Christoph
• Heide Alexander
• Weis Manfred
• Oerter Goekhan
• Wenke Marina
• Waeber Udo

Classifications

• F04D1/00

  Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps (adapted for pumping specific fluids F04D7/00; priming or boosting F04D9/00) · CPC title

• A61M2205/12

  with interchangeable cassettes forming partially or totally the fluid circuit · CPC title

• A61M1/1031

  Human Necessities · mapped topic

• A61M1/101 Primary

  Human Necessities · mapped topic

• A61M1/1006

  Human Necessities · mapped topic