Dhanya Plastics recognizes the paramount importance of moulding strength for medical products, where patient safety and device reliability are non-negotiable. We apply rigorous standards and meticulous processes to ensure the structural integrity of medical plastic components.By adhering to these rigorous practices, Dhanya Plastics aims to provide medical companies with contract-manufactured plastic components that exhibit exceptional moulding strength, contributing to the safety and efficacy of medical devices.

Frequently Asked Questions

What is medical-grade injection moulding?

A precision manufacturing process used to produce sterile, biocompatible plastic components for medical devices, such as syringes, surgical tools, implants, and diagnostic equipment.

Can injection moulding produce sterile medical parts?

Parts are manufactured in cleanroom environments (ISO Class 7/8) and can be sterilized post-moulding (e.g., autoclave, gamma radiation, or ETO).

What medical devices are made via injection moulding?
  • Disposables: Syringes, IV connectors, inhalers.
  • Surgical Tools: Scalpel handles, forceps.
  • Diagnostics: Test cartridges, blood analyzer parts.
  • Implants: Hearing aids, orthopedic components.
Are Injection moulded materials resistant to chemicals and sterilization?

Medical-grade plastics withstand repeated exposure to disinfectants (e.g., alcohol, hydrogen peroxide) and sterilization methods like autoclaving.

How are metal inserts integrated into medical parts?

Overmolding or insert moulding embeds metal components (e.g., surgical blades, sensors) into plastic housings for seamless assembly.

Is injection moulding cost-effective for low-volume medical orders?

For prototypes or small batches, 3D printing may be cheaper. Injection moulding becomes economical for 1,000+ units with reusable molds.

Why choose injection moulding over machining for medical devices?
  • Complexity: Achieve intricate geometries unattainable with CNC.
  • Scalability: Faster production for high-demand devices.
  • Material Efficiency: Less waste than subtractive methods.
Can injection moulding produce drug-delivery devices (e.g., auto-injectors)?

Yes. Precision moulding creates complex mechanisms like dose counters, springs, and needle shields in auto-injectors, using biocompatible plastics (e.g., COC, PMMA) that resist drug interactions.

 How are living hinges (e.g., on pill containers) achieved in medical moulding?

Thin, flexible hinges are moulded in one piece using fatigue-resistant plastics like polypropylene (PP), designed to withstand repeated opening/closing without breaking.

Can sensors or electronics be embedded in medical devices during moulding?

Yes. Insert moulding encapsulates sensors, RFID tags, or circuitry into housings for devices like smart inhalers or wearable health monitors, ensuring waterproof and tamper-proof designs.

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