What is the Novelia® System
This search led to the advent of Novelia® Multi Dose Preservative Free vials. The Novelia® Multi Dose Preservative Free eyedropper has been designed to be the best PF presentation available. Novelia® is a Multi Dose Preservative Free eye dropper system delivering consistent drops and the design includes
- A one-way valve that dispenses the dose and prevents back-flow (non-return valve) to maintain sterility of the bulk
- A silicone membrane which allows air to enter the container by diffusion (Pure Flow), while preventing contamination ingress.
The complete mechanism is in the nozzle as shown in the picture below, making the device very unique and user friendly.
The Novelia® system uses a non-return valve that removes the need to filter the liquid. This makes it possible to use a silicone membrane to filter the air. The venting system filters the intake of air using a very fine membrane manufactured from silicone polymer.
The silicone membrane is a solid, non-porous material. It is homogenous and does not contain any holes therefore its characteristics can be precisely engineered. The membrane’s intermolecular distance is of the order of nanometres, allowing the passage of air through the membrane, but completely preventing the passage of any liquid or solid, including bacteria.
An alternative to filters based on silicone: Novelia® A viable alternative to the use of sterile filters for multi-dose preservative free eye droppers is a nonreturn valve system used in conjunction with a silicone membrane to filter the returning air.
The one-way valve ensures that no contaminated liquid can be re-introduced to the container after the drop has been dispensed, completely removing the need to filter the liquid. The intake of air into the dispenser takes place via a separate venting system with a silicone membrane called the PureFlow® Technology.