Blogs CCIT

23
Jun 2021

Evaluating Package Inspection Solutions for Pre-filled Syringes

Evaluating Package Inspection Solutions for Pre-filled Syringes

Did you know that majority of defects in high-risk pharmaceuticals including pre-filled syringes are caused by seal defects, attributed to both process and personnel error? While micro leaks pose a risk, the primary causes of defects are larger seal related quality deviations.

As the pharmaceutical industry is constantly seeking opportunities to develop convenient drug delivery methods, pre-filled syringes have come up as practical and reliable source for unit dose medication. The demand for glass syringes faded as the industry moved towards plastic and disposable syringes. Pre-filled syringes are applied across a wide range of medical sector including vaccines, blood stimulants, and therapeutic proteins.

Convenience in use and reduced dosage errors are the primary benefits associated with pre-filled syringes. They make injections easier and safer for both doctors and patients. In addition, pharmaceutical companies are able to minimize drug waste and increase product life span- which are important factors, particularly with costly biopharmaceuticals. However, considering the fact that pre-filled syringes are complicated combination products, manufacturers face a number of challenges in terms of quality control and stability concerns. Therefore, pharmaceutical package testing demands sound knowledge of various CCI testing methods. In this blog, we will understand how Microcurrent HVLD technology offers reliable seal quality testing of pre-filled syringes.

MicroCurrent HVLD Technology for CCI testing of pre-filled syringes.

High voltage leak detection (HVLD) has been a common technology in the market for decades. The latest evolution of HVLD, MicroCurrent technology, aims to achieve a high level of CCI assurance across the entire range of parenteral products. High voltage leak detection is a method included in USP 1207 as a deterministic test methodology and is an established and reliable solution for all liquid filled parenteral products.

HVLD operates on the simple property of electrical current. The package barrier must be non-conductive and would resist voltage from passing through, while the package contents should generally be able to carry voltage. Liquid products with a conductivity of 5 microsiemens and greater meet the requirement for PTI’s MicroCurrent HVLD

The E-Scan 655 is a Microcurrent HVLD technology-based leak test instrument used to inspect vials, syringes, and other liquid filled parenteral products. It is completely non-destructive to the container and product; exposing the package and product to lower voltage than other conductivity-based solutions. The technology uses a non-contact and non-invasive test method that requires no sample preparation. E-Scan 655 can be used with a wide range of liquid-based products including low conductivity sterile water for injection (WFI) and proteinaceous products with suspensions.

Benefits of MicroCurrent HVLD technology

  • Non-destructive, non-invasive, no sample preparation.
  • High level of repeatability and accuracy.
  • Effective across all parenteral products, including extremely low conductivity liquids (WFI).
  • Lower voltage exposure produces no ozone, eliminating risk to the product and environment.
  • Listed in USP Chapter as recommended method for parenteral liquid package inspection.
  • Robust method and approximate 3x Signal-Noise-Ratio for a wide range of product classes and package formats.
  • Simplifies the inspection and validation process.
Readmore...
pharmaceutical package testing, seal quality testing, CCI, Microcurrent HVLD
108
19
Jun 2021

MicroCurrent HVLD Technology for Sensitive CCI Testing

MicroCurrent HVLD Technology for Sensitive CCI Testing

Container Closure Integrity Testing is a leak detection test conducted using non-destructive package inspection systems, to evaluate whether container closure systems can maintain sterile barriers against potential damages. CCIT plays a vital role in ensuring that the products are free from any possible contamination. Container closure systems are made up of primary packaging components and secondary packaging components. Components like glass, vials or syringes that are in direct contact with the product are called primary packaging components. Secondary packaging components include aluminum caps, cardboard boxes etc. that are not in direct contact with the product.

While there are multiple ways to conduct a Container Closure Integrity test, these methods can be broadly classified into probabilistic and deterministic test methods. Traditional methods like bubble tests, dye ingress and microbial challenge by immersion come under probabilistic test methods. Since it was found that such test results lacked accuracy and reliability, the United States pharmacopeia released guidance in 2016 stating that deterministic methods are preferred over probabilistic test methods. Let us now understand how Microcurrent HVLD technology ensures sensitive CCI testing across different industries and applications.

MicroCurent HVLD technology is a non-destructive test method capable of achieving high levels of CCI assurance across the entire range of parenteral products. It is an FDA recognized ASTM test method capable of detecting the presence and location of pinholes, micro-cracks, stopper/plunger leaks, non-visible leaks under crimping and many other defects. Additionally, MicroCurent HVLD technology is found to be effective in detecting leaks in a wide range of liquid- filled products including extremely low conductivity sterile water for injection (WFI) and proteinaceous products with suspensions. A unique feature of Microcurrent HVLD technology is that it does not require mass to pass through a defect site, requiring only the passage of electricity through a crack.

How does MicroCurrent HVLD technology work?

MicroCurrent HVLD technology functions on the simple property of electrical current. The first step is to place container horizontally on the rotating stage. While rotating the container, high voltage is applied on one side of the container and a ground probe on the opposing side. In the presence of a micro-leak or crack in one of the container walls, break-down resistance is reached and the current passes through. On the other hand, if there is no leak, the two container walls (high voltage side and ground side) provide full electrical resistance and no significant current is measured passing through the package.

MicroCurrent HVLD reduces voltage exposure to the product to less than 5% of the voltage exposure experienced when testing with other HVLD solutions. Reduced voltage exposure has twin benefits- limits any risk that the voltage may cause to the product, and greatly reduces production of ozone during operation. In fact, experiments have shown that MicroCurrent HVLD produces essentially no Ozone

Benefits MicroCurrent HVLD technology

  • Non-destructive, non-invasive, no sample preparation.
  • High level of repeatability and accuracy.
  • Effective across all parenteral products, including extremely low conductivity liquids (WFI).
  • Lower voltage exposure produces no ozone, eliminating risk to the product and environment.
  • Listed in USP Chapter as recommended method for parenteral liquid package inspection.
  • Robust method and approximate 3x Signal-Noise-Ratio for a wide range of product classes and package formats.
  • Simplifies the inspection and validation process.
Readmore...
container closure integrity, CCI, Microcurrent HVLD
119

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