The Importance of Medical Butyl Rubber Stoppers in Pharmaceutical Packaging

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Prefilled flush syringes are single-use medical devices that deliver sterile flush solutions, such as saline or heparinized fluids, to clear intravenous lines or catheters. The design of these syringes must maintain sterility and prevent leakage throughout storage and administration.

Rubber stoppers manufacturer serve as the primary sealing mechanism at the syringe barrel’s opening, preventing the ingress of contaminants and the egress of the syringe contents. Given the critical function they perform, the choice of stopper material significantly impacts the overall performance of the prefilled flush syringe.

Medical butyl rubber is a synthetic elastomer made primarily from isobutylene with a small amount of isoprene. This unique molecular structure imparts several advantageous properties such as low gas permeability, excellent elasticity, and chemical inertness.

Butyl rubber stoppers used in medical applications undergo rigorous purification and manufacturing processes to meet pharmaceutical-grade standards. This ensures they are free from contaminants and are safe for direct contact with injectable drugs.

One of the defining features of butyl rubber is its outstanding chemical resistance. It maintains integrity in contact with various fluids commonly used in prefilled syringes, including saline, heparin, and other flush solutions. The material does not react adversely with these substances, thereby preventing degradation or leaching of compounds into the syringe contents.

Physically, butyl rubber stoppers are highly elastic and resilient. They can undergo repeated compressions during the syringe filling and administration process without cracking or losing their sealing effectiveness. This elasticity helps maintain a tight, leak-proof seal throughout the product’s shelf life.

https://www.klstopper.com/product/medical-rubber-products-series/disposable-blood-collection-needle-sheath.html

Disposable Blood Collection Needle Sheath
Uses: The product is installed on a disposable blood collection needle and can continuously work during the blood collection
Packing: Inner Packing Is Sterilizabled Bags, Outer Packing Is Carton
Enterprise Standard: YY/T0313-2014

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