News Column

Patent Issued for Modular Hemofiltration Apparatus with Removable Panels for Multiple and Alternate Blood Therapy

June 27, 2014

By a News Reporter-Staff News Editor at Health & Medicine Week -- B. Braun Avitum AG (Melsungen, DE) has been issued patent number 8747662, according to news reporting originating out of Alexandria, Virginia, by NewsRx editors (see also B. Braun Avitum AG).

The patent's inventors are Delmage, J. Michael (Napa, CA); Peters, Harold (Martinez, CA); Cooper, Tommy (Friendswood, TX).

This patent was filed on July 31, 2008 and was published online on June 10, 2014.

From the background information supplied by the inventors, news correspondents obtained the following quote: "Hemodialysis systems have been designed to carry out blood therapy procedures such as slow continuous ultrafiltration (SCUF), continuous veno-venous hemofiltration (CVVH), continuous veno-venous hemodialysis (CVVHD) or continuous veno-venous hemodiafiltration (CVVHDF). These therapies, referred to as CRRT, are designed for removal of metabolic waste and excess fluid from patients in fluid overload and who need renal support. Presently available extracorporeal blood treatment apparatus often requires inconvenient and time consuming setup procedures including cleaning and/or replacing the blood and/or fluid tubing for different patients and for different therapies. Such procedures may require the apparatus to be removed from a patient's bedside or room to another location, or replacing an apparatus with a system that is set up and configured for carrying out a specific therapy.

"U.S. Pat. No. 5,910,252 describes an apparatus configured for performing the different blood therapies and provides means for selecting one of the therapies to be carried out. The described apparatus is an assembly of all pumps, tubing, multiple fluid supply reservoirs, waste fluid container and filter cartridge necessary for performing any one of the selected blood therapies.

"U.S. Pat. No. 6,200,485 describes another multipurpose hemofiltration system comprising an assembly of a blood filter cartridge, pumps, fluid reservoir and waste fluid container, components for comparing the weights of the fluid reservoir and waste fluid container and means for controlling the pump operations and rate in response to the compared weights during the therapy.

"A Prismaflex.TM. system marketed by Gambro of Lakewood, Colo. offers selection of different CRRT therapies. The system allows the user to select a prepackaged, preassembled assembly incorporating all of the components including specific column and type of filter membrane or membrane filter surface area and all preconnected tubing for carrying out the selected therapy."

Supplementing the background information on this patent, NewsRx reporters also obtained the inventors' summary information for this patent: "The apparatus and system described herein provides a flexible treatment platform for performing several different therapies for separating and removing undesirable components from blood as well as plasma separation and plasma treatment including plasmapheresis and therapeutic apheresis. The basic apparatus is a lightweight, portable, modular assembly including a housing having a plurality of peristaltic pumps secured in the housing together with a computer/controller. Manually removable and replaceable panels are provided with tubing sets mounted on the panels and configured for easy installation and replacement on the modular housing. The tubing kits on each of the different panels are configured and formed to readily engage one or more of the peristaltic pumps and for being connected to or disconnected from a filter cartridge, fluid supply bags and waste bags. The system provides a method allowing the physician or therapist to select a therapy, manually install a selected fluid control panel and selected filter cartridge, and thereafter, if desired, quickly and efficiently change the therapy by manually exchanging a panel and/or filter, or replacing a clogged filter. Such features as well as others, methods, advantages and operations of the apparatus will be disclosed in the following Detailed Description."

For the URL and additional information on this patent, see: Delmage, J. Michael; Peters, Harold; Cooper, Tommy. Modular Hemofiltration Apparatus with Removable Panels for Multiple and Alternate Blood Therapy. U.S. Patent Number 8747662, filed July 31, 2008, and published online on June 10, 2014. Patent URL:

Keywords for this news article include: Therapy, Hemodialysis, Renal Dialysis, B. Braun Avitum AG.

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Source: Health & Medicine Week

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