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Needle Protection Cap Component – Machinery and Equipment Manufacturing

Component Specifications

Definition

A medical-grade polypropylene cap designed to cover and protect syringe needles before and after use. It maintains sterility, prevents contamination of the needle tip, and reduces the risk of accidental needlestick injuries by providing a secure, tamper-evident seal. The cap is engineered for single-use applications and must meet stringent medical device standards for biocompatibility and safety.

Working Principle

The cap fits securely over the needle hub or needle tip, creating a physical barrier that prevents exposure to contaminants and accidental contact. It typically features a snap-fit or friction-fit design that ensures it remains in place during handling and storage, while allowing easy removal when needed. Some designs include tamper-evident features to indicate if the cap has been removed or compromised.

Materials

Medical-grade polypropylene (PP), compliant with ISO 10993 for biocompatibility. Material must be free of latex, DEHP, and other harmful additives. Typical specifications include: PP homopolymer, density 0.905 g/cm³, melt flow rate 12 g/10 min (230°C/2.16 kg), sterilizable via gamma irradiation or ethylene oxide (EtO).

Technical Parameters

Color Typically white or clear
Packaging Bulk or blister-packed
Sterility Sterile, single-use
Dimensions Varies by needle gauge (e.g., 18G-30G)
Shelf Life 5 years in original packaging
Temperature Resistance -20°C to 121°C

Standards

ISO 7886-1, ISO 10993, ISO 13485, DIN EN 455, FDA 21 CFR Part 820

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Needle Protection Cap.

Parent Products

This component is used in the following industrial products

Medical-Grade Polypropylene Syringe

Sterile disposable syringe manufactured from medical-grade polypropylene for clinical applications.

View Product Details

Engineering Analysis

Risks & Mitigation

Contamination if cap is damaged or improperly sealed
Needlestick injury if cap fails to secure properly
Material degradation if exposed to incompatible chemicals or extreme temperatures

FMEA Triads

Trigger: Improper molding or material defects
Failure: Cap does not fit securely, leading to contamination or needlestick risk
Mitigation: Implement strict quality control (QC) checks, including dimensional verification and leak testing

Trigger: Inadequate sterilization process
Failure: Non-sterile cap, risking infection
Mitigation: Validate sterilization cycles and conduct regular microbiological testing

Trigger: Tampering or damage during handling
Failure: Compromised barrier function
Mitigation: Use tamper-evident packaging and train personnel on proper handling procedures

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance

Dimensional tolerance ±0.1 mm per ISO 2768-m, sterility assurance level (SAL) ≤10⁻⁶

Test Method

Dimensional checks via coordinate measuring machine (CMM), sterility testing per ISO 11737, biocompatibility testing per ISO 10993, and functional testing for fit and seal integrity