Peritoneal dialysis machine

Patent metadata

Field	Value
Publication number	US-10661002-B2
Application number	US-201615752114-A
Country	US
Kind code	B2
Filing date	Aug 10, 2016
Priority date	Aug 11, 2015
Publication date	May 26, 2020
Grant date	May 26, 2020

Abstract

A peritoneal dialysis machine has a machine housing and a drain pan for receiving one or more solution bags for storing consumed dialysate. The drain pan is connected to a weighing cell such that the weight of the drain pan can be detected by the weighing cell. A damping system prevents the occurrence of undue force introduction into the weighing cell. The damping system has a damper to which the drain pan is directly or indirectly fastened, and the damper is connected to the weighing cell such that the weight of the drain pan acting thereon is transmitted to the weighing cell.

First claim

What is claimed is:

1. A peritoneal dialysis machine comprising:
a machine housing;
a drain pan for receiving one or more solution bags for storing consumed dialyzate, the drain pan being connected to a weighing cell configured to detect a weight of the drain pan;

a damping system configured to prevent an introduction of undue force into the weighing cell, the damping system including a damper to which the drain pan is directly or indirectly fastened, and a force introduction element located above the damper and to which the drain pan is directly or indirectly fastened, with the damper being connected to the weighing cell such that the weight of the drain pan acting thereon is transmitted to the weighing cell; and
a holder, which carries the drain pan, and which is arranged directly or indirectly at the damper,
with the damper having at least one feed-through through which the holder extends at least sectionally.

2. The peritoneal dialysis machine in accordance with claim 1 , wherein the damper has a longitudinal axis, and the feed-through extends along the longitudinal axis or along an axis extending in parallel therewith.

3. The peritoneal dialysis machine in accordance with claim 1 , wherein the damping device includes a force transmission element arranged between the damper and a housing of the weighing cell.

4. The A peritoneal dialysis machine in accordance with claim 3 , wherein at least one of the force introduction element and the force transmission element has a size which corresponds to a surface of the damper which is connected to at least one of the force introduction element and the force transmission element.

5. The peritoneal dialysis machine according to claim 4 , wherein the force introduction element is a base plate, and the force transmission element is a top plate.

6. The peritoneal dialysis machine according to claim 3 , wherein the force transmission element is a base plate.

7. The peritoneal dialysis machine in accordance with claim 1 , wherein the weighing cell is arranged in or at the machine housing.

8. The peritoneal dialysis machine in accordance with claim 1 , wherein the damper is cylindrical.

9. The peritoneal dialysis machine in accordance with claim 1 , wherein the damper includes rubber, or consists of rubber.

10. The peritoneal dialysis machine in accordance with claim 1 , wherein the holder extends through an opening of the housing of the weighing cell, with the opening being dimensioned such that the holder does not contact a space of the opening in at least one position of the drain pan.

11. The peritoneal dialysis machine in accordance with claim 10 , wherein the at least one position is that in which the drain pan is located in a non-loaded position of rest.

12. The peritoneal dialysis machine according to claim 11 , wherein the opening of the housing of the weighing cell has a diameter which is at least twice as large as an outer diameter of the holder.

13. The peritoneal dialysis machine in accordance with claim 1 , wherein the drain pan is located beneath the machine housing and the weighing cell is located in the machine housing.

14. The peritoneal dialysis machine in accordance with claim 1 , wherein an abutment is located beneath the housing of the weighing cell to limit deflection of the housing of the weighing cell.

15. The peritoneal dialysis machine in accordance with claim 14 , wherein the abutment is configured as a plate that extends beneath an installation plate and is spaced apart therefrom at least region-wise.

16. The peritoneal dialysis machine according to claim 15 , wherein the abutment configured as a plate has a material of construction that is a metal.

17. The peritoneal dialysis machine in accordance with claim 14 , further comprising an adjustment means for varying a spacing between the housing of the weighing cell and the abutment.

18. The peritoneal dialysis machine according to claim 17 , wherein the adjustment means includes a screw and a locknut.

19. The peritoneal dialysis machine according to claim 14 , wherein the abutment is adjustable.

20. The peritoneal dialysis machine according to claim 1 , wherein the force introduction element is a top plate.

21. The peritoneal dialysis machine according to claim 1 , wherein the feed-through has a circular cross-section.

Assignees

• Fresenius Medical Care Deutschland Gmbh

Inventors

• Zeyher Peter
• Fritsch Kim

Classifications

• A61M2205/3393

  by weighing the reservoir · CPC title

• G01G23/3735

  using a digital network · CPC title

• G01G19/56

  combined with handles of tools or household implements · CPC title

• A61M1/1643 Primary

  with weighing of fresh and used dialysis fluid · CPC title

• A61M2205/3379

  Masses, volumes, levels of fluids in reservoirs, flow rates · CPC title