Silicone solution for deep drainage
The key part of the deep-drainage set is a quadruple-lumen silicone tube. The large inner lumen transports secretion, or exudate, from wounds within the body. The three small lumens in the tubing wall ensure that aeration can be actively managed during drainage. “This special design is our unique selling proposition,” says Arno Herzele who is responsible for research and development for this therapeutic system at Lohmann & Rauscher. It is hardly surprising that the company has filed a patent application for the solution.
Axel Wunderlich, the product manager in applications technology at Raumedic, is really pleased that patent protection is being sought for the deep drainage system. For good reason: The extrusion and handling of simple silicone tubes pose a certain challenge as a result of the material being used. “You need lots of experience and technical know-how if the soft tubing wall should also have additional lumen, side drainage openings and X-ray contrast stripes,” the technician says in explaining the production-related challenge.
Kink-resistant drainage pad
Raumedic also manufactures a drainage pad for external wound therapy for Lohmann & Rauscher. In this solution, wound secretion is transported via a port with an integrated aeration ring and a quadruple-lumen PVC tube. “Stability was a really important factor for us here,” Axel Wunderlich says in describing the goal of the work. “To achieve an optimal flow rate, the tube mustn't kink under any circumstances.”
Connectors for optimal bonding
In addition, Raumedic makes special C and Y connectors to extend the drainage sets and to connect them to the exudate bag. The connectors are equipped with a user-friendly locking function, Wunderlich says. “They are made of hard and soft components and are very complex,” he explains. “But they have several more important features: They facilitate a fast and simple connection, dependably seal the system and prevent wound secretion from flowing back into the body.”
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