Enabling solutions for challenging applications

Combining different materials to a fully-bonded solution offers new possibilities in design and size for the most complex applications. Additionally, multicomponent products can minimize risk and increase hygiene for the component and the complete assembly, while reducing total cost-of-ownership.

 

Trelleborg Medical Solutions offers fully-bonded, molded combinations from a full range of engineered and high-spec polymers, including silicones, elastomers, thermoplastics, TPEs, and metals.

 

Features & benefits of Multicomponent Technology:

 

  • Infinite geometries give product designers much more latitude in design solutions
  • Utilizes sophisticated toolmaking and automation capabilities
  • Ability to integrate multiple components and functions into smaller space
  • Increased robustness in comparison to assembly 
  • Enables lighter weight components
  • Avoid risks and costs associated with secondary assembly
  • Lowers cost by reducing the number of components in the customer’s supply chain
  • Enables product concepts in line with hygienic and regulatory compliance needs

 

Understanding Manufacturing Complexity to Reduce Device Complexit

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Learn how multicomponent processing technology can support the development of more sophisticated and smaller medical devices.
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Integrate multiple functionalities and meet compliances requirements

Connector-Sealing-multicomponent-technology

One of our most outstanding capabilities is the simultaneous injection of liquid silicone rubber (LSR) in combination with engineered plastics, Multicomponent LSR Technology. In what is commonly referred to as 2K, 2-shot, multicomponent injection molding or co-injection, our LSR experts employ highly advanced and sophisticated tool and process engineering to develop the most innovation solutions, combining two, three or more individual materials into one fully-bonded, robust component.

 

Enhanced processing options for more hygienic designs

 

Trelleborg Medical Solutions is at the forefront of tool, process and automation technology for multicomponent LSR liquid injection molding. In a fully automated and closed loop system, either a combination of thermoplastic and LSR or two dissimilar grades of LSR are co-molded into a bonded component that offers a wealth of benefits in both assembly and function of the finished product.

 

A second process option for two component parts, suited for lower production runs and commonly applied by Trelleborg Medical Solutions is overmolding. Here, LSR is injected over either a thermoplastic or metal component to create a fully bonded part.

Application Example: Medical Safety Valves

Customer: Medical Device Manufacturer
Application: Drug-Delivery Device – Sealing for Shaft System

 

Challenges:

  • Small and delicate sealing geometry
  • Ability to withstand Gamma-sterilization and steam sterilization up to 134 °C/273 °F
  • Hygienic design to prevent bacterial growth long-term
  • Compliant with biocompatibility standards

 

Solution:

  • LSR bonded to glass, fiber-filled PBT consolidating two parts into one

 

The resulting design of sealing element proved to be highly cost effective. Total cost was reduced by eliminating assembly cost and risk and using a fully automated process. The design enabled an effective sealing solution within smallest geometries. The avoidance of dead space leads to higher hygiene with a highly reduced potential for bacterial growth. The component proved highly effective, and the same concept is being used across the customer’s product range.