If you happen to be walking by the Actega DS booth at Fakuma, you might notice a flock of IV drip chambers seemingly floating inside a transparent plastic container. It’s an ethereal display designed to capture your attention for a very down-to-earth problem that Actega (Bremen, Germany) claims to have solved: Creating a robust bond between the drip chamber, molded from the company’s medical-grade thermoplastic elastomer, Provamed, and PVC tubing. The transparent, solvent-bonded TPE drip chambers are having their world debut at Fakuma 2018.
Used for infusion and transfusion therapy, drip chambers comprise a pin, the chamber itself, a transparent infusion line, flow controller and connector. A staple of medical facilities, drip chambers must be safe and reliable; suppliers that want to stay in business, also must find ways to manufacture them cost effectively.
PVC is still used in the vast majority of these devices, but there has been a concerted effort over the years to move away from this material because of perceived health concerns. TPEs are a safe bet, according to Actega, especially in this application.
Transparency is vital in this device to visually verify flow and allow swift adjustments, when needed. The material also must withstand EtO and gamma sterilization. Provamed fulfills these as well as biocompatibility requirements, said Actega.
The company also developed the technology that produces a strong bond between the drip chamber and the tubing. It was tested extensively with the most commonly used solvents—tetrahydrofuran and methyl ethyl ketone—and bonding with cyclohexanone or other solvents is also conceivable, said Actega. “Furthermore, the formulae have the potential to be processed via cost-efficient two-component injection molding, as the products display perfect adhesion to polystyrene and ABS,” added the company.
Find out more by visiting Actega at booth 5003 in hall 5.
Fakuma runs through Oct. 20 in Friedrichshafen, Germany.