Applications of Medical Device Molding

Medical device manufacturers rely on medical silicone rubber for its many beneficial properties, including biocompatibility, low tissue reaction, heat resistance, and flexibility. Manufacturers use this long-lasting, reliable material to mold everything from airways and balloon catheters to feeding tubes and electrosurgical tools. Learn more about the features of silicone rubber molding, the benefits of liquid silicone rubber (LSR), and its common applications.

Silicone Rubber in Medical Device Molding

Any material used in medical device manufacturing needs to fulfill strict regulatory requirements to ensure product safety and performance. In healthcare, failing to meet these strict standards can be a matter of life or death.

Medical devices, instruments, and the components that comprise them need to be sturdy enough to withstand high heat, pressure, and chemical exposure. At the same time, they must be comfortable enough for physical contact with patients and healthcare workers.

Medical silicone rubber’s characteristics meet the most stringent requirements for many products, with the following material properties:

  • Flexibility at a broad range of temperatures
  • Resistance to compression
  • Chemical inertness
  • Long service lifespan

Finding the balance between durability and comfort is challenging, but liquid silicone rubber (LSR) can meet the unique needs of medical applications. The thermoset material is durable, flexible, chemically inert, and moldable. To produce medical silicone rubber components, LSR is injected into a molding machine as a liquid resin and then cured into its final solid form.

LSR is more stable than thermoplastics, which tend to soften and weaken under high temperatures. In contrast, LSR maintains its solidity and strength when faced with high temperatures. It can safely undergo repeated heat or radiation sterilization. Additionally, LSR’s resistance to chemical agents makes it a versatile option for transporting liquids and gases.

Applications of Medical Device Injection Molding

LSR has become a preferred material for a wide variety of medical applications thanks to its unique characteristics. LSR components are used in nearly every medical specialty and field, including cardiology, oncology, plastic surgery, ophthalmology, and ear, nose, and throat (ENT). This broad acceptance is a testament to the material’s ability to withstand demanding conditions in healthcare environments.

Some of the most common single- and multi-use applications of silicone rubber in medical device injection molding include:

  • Dialysis Equipment: LSR is used to produce tubes and connectors due to its flexibility and durability.
  • Orthodontics: LSR components are ideal for retainers and mouthguards, which require a combination of flexibility and biocompatibility.
  • Plugs and Pump Parts: Its wear and tear resistance makes silicone rubber a top choice for various pumping mechanisms.
  • Single-Use Equipment: Single-use pharmaceutical devices, such as tubing assemblies, benefit from the material’s low reactivity and chemical inertness.
  • Syringes: Silicone rubber is often used in syringe plungers, ensuring a smooth and non-reactive interface for the injection of medications.

These are just a few examples of how LSR can be molded into complex shapes for safe and effective patient care.

Medical Device Molding From Jefferson Rubber Works

At Jefferson Rubber Works, we understand the importance of precision and reliability in medical device injection molding. Our expertise in state-of-the-art liquid silicone rubber (LSR) molding technology delivers high-quality, tailored solutions for all your medical device needs. Whether you need components for dialysis equipment, syringes, specialized surgical tools, or any other medical device application, we are equipped to support your project from concept to completion.

Our team of experts is committed to supporting your project’s success at a competitive price. Contact us today to find out more about our services, or request a quote to get started.