Blood treatment machine comprising a hollow fiber filter module for horizontal arrangement as well as hollow fiber filter module and use thereof

Patent metadata

Field	Value
Publication number	US-10973972-B2
Application number	US-201816235023-A
Country	US
Kind code	B2
Filing date	Dec 28, 2018
Priority date	Jan 11, 2018
Publication date	Apr 13, 2021
Grant date	Apr 13, 2021

Abstract

An extracorporeal blood treatment machine for carrying out a blood treatment including a machine front on which a hollow fiber filter module is arranged in a horizontal position, which hollow fiber filter module includes a cylindrical housing, a blood chamber having a blood inlet nozzle and a blood outlet nozzle and a solution chamber having a solution inlet nozzle extending transversely to the longitudinal direction of the hollow fiber filter module and a solution outlet nozzle extending transversely to the longitudinal direction of the hollow fiber filter module, the solution chamber being semi-permeably communicated at least in portions with the blood chamber, wherein a height potential is present in the horizontal position between the solution inlet nozzle and the solution outlet nozzle so that drainage of solution is enabled via one of the solution nozzles and evacuation of air bubbles is enabled via an other of the solution nozzles.

First claim

The invention claimed is:

1. An extracorporeal blood treatment machine for carrying out a blood treatment comprising:
a machine front; and
a hollow fiber filter module arranged in a horizontal position on the machine front; wherein the hollow fiber filter module has:
a cylindrical housing having a first end, a second end opposite the first end, and a central longitudinal axis extending from the first end to the second end,
a blood chamber having a blood inlet nozzle and a blood outlet nozzle, and
a solution chamber having a solution inlet nozzle extending transversely to a longitudinal direction of the hollow fiber filter module and a solution outlet nozzle extending transversely to the longitudinal direction of the hollow fiber filter module, the solution chamber being semi-permeably communicated at least in portions with the blood chamber, wherein in the horizontal position of the hollow fiber filter module a first height potential is present between the solution inlet nozzle and the solution outlet nozzle so that via one of the two solution nozzles drainage of solution is enabled and via another of the two solution nozzles evacuation of air bubbles is enabled,

the blood outlet nozzle and solution inlet nozzle extending radially relative to the longitudinal axis from the first end, with the blood outlet nozzle angularly offset from the solution inlet nozzle by 180° in a circumferential direction,
the blood inlet nozzle and solution outlet nozzle extending radially relative to the longitudinal axis from the second end, with the blood inlet nozzle angularly offset from the solution outlet nozzle by 180° in the circumferential direction, and
the blood inlet nozzle, blood outlet nozzle, solution inlet nozzle and solution outlet nozzle extending parallel to one another in a common plane passing through the longitudinal axis,
wherein in the horizontal position of the hollow fiber filter module a second height potential is present between the blood inlet nozzle and the blood outlet nozzle so that via one of the two blood nozzles drainage of blood is enabled and via another of the two blood nozzles evacuation of air bubbles is enabled.

2. The extracorporeal blood treatment machine according to claim 1 , wherein the solution inlet nozzle is angularly rotated relative to the solution outlet nozzle in the circumferential direction of the hollow fiber filter module and one of the two solution nozzles points downward in the horizontal position of the hollow fiber filter module and/or the blood inlet nozzle is angularly rotated relative to the blood outlet nozzle in the circumferential direction of the hollow fiber filter module and one of the two blood nozzles points downward in the horizontal position of the hollow fiber filter module.

3. The extracorporeal blood treatment machine according to claim 1 , wherein the cylindrical housing is horizontally coupled to the machine front such that the horizontal position of the hollow fiber filter module is centered on the machine front.

Assignees

• Braun Avitum Ag

Inventors

• Ritter Kai-Uwe

Classifications

• A61M1/16 Primary

  with membranes · CPC title

• B01D61/243 Primary

  Dialysis · CPC title

• B01D63/02

  Hollow fibre modules · CPC title

• B01D2313/20

  Specific housing · CPC title

• B01D61/28

  Apparatus therefor · CPC title