Medical Injection Molding

Injection molding is the process of injecting molten plastic into a metal mold. The mold represents the negative shape of the desire component. High-pressure injection ensures the entire cavity is filled and allows for molding intricate details and small medical components. Injection molds are manufactured from high-performance metals to withstand high injection pressures. As such, the process is often used for high-volume production of complex shapes. Injection molding is used throughout the medical device industry for the manufacture of minimally invasive devices, implants, instruments, and more.

Customers come to Polyzen to support in their injection molding applications for support in their material selection, tooling design, process development, and troubleshooting. Polyzen has developed key strategic partners to support in their injection molding projects, and Polyzen then supports these projects long-term through its strong supply chain management. Polyzen has experience working with partners in both the U.S. as well as in low-cost countries.

Medical Injection Molding Application

Polyzen offers injection-molding services using a variety of thermoplastics to create finished medical products or components for value-added assemblies. At Polyzen we commonly mold a variety of thermoplastics, thermoplastic elastomers, and selective thermosetting polymers. These include, but are not limited to, polyamides, thermoplastic polyurethanes (TPUs), thermoplastic elastomers (TPEs), polyvinyl chloride (PVC), and polyvinylidene fluoride (PVDF). Often, our molded components are used in conjunction with components from other in-house processes to produce medical device assemblies. Examples include:

Insert Molding

Insert molding involves placing a component, such as a wire or tube, and over molding an additional material. This can be used to produce elastomer grips on instrument handles or complex features on tube or wire structures.

Catheter Hubs & Lures

Hubs and lures can be molded separately and bonded or welded to a catheter tube or molded directly onto the tube using insert molding. The latter provides a single-piece hub-on-catheter assembly.

About Polyzen

Polyzen, Inc. is a leading contract developer and manufacturer of custom medical-grade polymer components and products for medical device manufacturers worldwide. With fully equipped facilities in Apex, NC, we’re capable of taking any customer’s concept from prototype to full-scale production. We offer a variety of technologies and turnkey services to meet the most demanding application and regulatory challenges.

Polyzen Can Help

Rely on Polyzen’s expertise to bring your medical polymer device needs to reality.


Contact Us