New filter type reliably protects patients from contaminants in liquids and gases

The new filter made of metal mesh with a plastic frame is manufactured manually by Küfner in a Class 7 clean room.

Küfner masters manufacturing processes for filters in accordance with medical technology standards

Karl Küfner GmbH & Co. KG has developed a new type of filter for patient-side filtration of contrast media used in imaging procedures. These applications require a terminal filter that reliably protects patients from contamination while allowing the highest possible flow rate of contrast media. The use of virus and bacteria filters is not reliable in these cases, as the resistance in the filter housing is too high and the connection between the membrane and the body can burst.

The filter developed by Küfner specifically for this application consists of a metal mesh encased in plastic. The metal mesh used in the filter is permanently three-dimensionally deformable and can be individually fitted into a customer-specified component thanks to the plastic casing. This combination of materials made it possible to achieve the high flow rate and the required stability and material resistance, and to prevent bubble formation during contrast agent injection. The associated manufacturing process for metal mesh filters was installed by Küfner in accordance with the hygiene requirements of medical technology standards. The company is certified according to DIN EN ISO 13485 and produces the new filter types of medical device class IIa in a validated manual process in a class 7 clean room.

Metal mesh filters with plastic surrounds for medical applications can generally be used in all applications where a liquid or gas is introduced into the patient and a terminal filter must reliably prevent contamination. When developing a suitable filter, Küfner can take into account the specific characteristics of the medical application, such as flow behavior, and tailor the choice of plastic and fabric materials precisely to the individual case. For the first time, Küfner is able to manufacture filters manually in small and medium quantities under the same hygienic conditions as in large-scale production with falling parts.

Your contact for medical filters:

Mr. Fabian Groß

Overview