Key Design Points for Tyvek Aseptic Blisters

Aseptic plastic box

It is a combination of plastic blister box and Tyvek dialysis paper, which is made of medical grade PETG transparent material and is used for the initial packaging of medical equipment products. We often used to call it medical blister box, medical blister pack, aseptic blister box, Tyvek Tyvek plastic box and so on. After the medical device manufacturer assembles the product, it can be sterilized and eventually achieve sterility. The end user can perform aseptic operations (eg, clean opening, etc.). It can achieve the barrier properties of microorganisms, so as to achieve the protection of the product and can maintain the system's internal sterile environment within a certain period of time the packaging system.

Therefore, it can be said that the Tyvek sterile plastic box is a very important part of medical devices. In order to ensure the safety and effectiveness of medical device products, it is important to strictly control the packaging process. We must not only ensure that the production environment reaches a clean state. In the production process of medical blister packaging, we should also pay attention to the manufacturer's design capabilities and mold development and manufacturing capabilities. Both of these will directly affect the intended use of medical devices, storage time and transportation, and so on.

Next, we will elaborate on the matters that should be noted when designing an aseptic blister box from three aspects: material, mold, and blister shape structure:

material

First, the designer must fully utilize the characteristics of the plastic itself, such as strength, toughness, water absorption, and sensitivity to stress. We have always emphasized that the PETG material used for medical device blister cartridges is mostly, so when designing PETG materials, our designers must fully consider the characteristics of the material itself. The stamping and cutting performance of PETG is excellent, but the pressing pressure is 55% higher than that of PVC, and the cutting time is very short. Therefore, the heating time and cutting length of the knife mold have to be increased accordingly. And we need to consider the flowability of the material in the molding process and the shrinkage after molding, which has major considerations for the R&D experience of the plastic packaging manufacturers.

external structure

When the designer confirms the selection, refer to the physical appearance of the most suitable physical design for the medical device. We should consider the structure of the aseptic blister box to be simple and atmospheric, and the structure is relatively simple and not too complicated under the guarantee of complete functionality. At the same time, it is necessary to consider uniform wall thickness after molding, and it is easy for medical device manufacturers to heat-bond with dialysis paper later. At the same time, we must consider the production problems of plastic manufacturers, easy molding and easy mold release, is conducive to exhaust, heating, cooling and so on. Try to avoid sharp corners and possible problems in the production process. Finally, we will present a complete 3D physical simulation diagram to the customer.

Mould

The aseptic blister box for medical devices has strict requirements for the production and development of molds, and the developed molds must meet the cleanliness standard of medical blister boxes. In addition, consider the overall structure of the mold, the size must be accurate, the smoothness of the surface and the processing of all round corners can not be vague. Ensure that the functionality of the product is complete and the positive and negative ratios are within the minimum and the minimum is ±0.01mm. When designing different aseptic blister boxes, according to different medical devices, the most practical and safe medical blister packaging is designed.

In short, medical device manufacturers are looking for Tyvek aseptic blister manufacturers. Not only must the qualifications of plastic manufacturers be audited, but also their production and development experience should be considered. Because the early design of sterile medical blister packaging determines the safety, practicality and effectiveness of the medical sterile blister box, it must not be self-seeking for cheap and choose three non-qualified manufacturers with no qualification, no certification and no R&D design experience.