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Instrument Manufacturing and Repair Questions and Answers Flashcards

6 cards from real CIS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 Instrument Manufacturing and Repair Questions and Answers flashcards as text

  1. What is the role of heat treatment in surgical instrument manufacturing?

    Answer: To achieve the desired hardness, temper, and mechanical properties of the steel

    Heat treatment controls the microstructure of the steel to achieve specific hardness levels, flexibility, and mechanical properties required for the instrument's function.

  2. What defect in instrument manufacturing can cause stress corrosion cracking?

    Answer: Residual tensile stress from improper heat treatment combined with corrosive environment exposure

    Stress corrosion cracking occurs when residual tensile stresses combine with exposure to corrosive agents, causing cracks to develop without visible deformation.

  3. What is the difference between German and Pakistani-manufactured surgical instruments?

    Answer: German instruments typically use higher-grade steel, tighter tolerances, and more finishing steps

    German instruments generally use premium-grade DIN-certified steel, tighter tolerances, more finishing steps, and typically offer longer service life and better corrosion resistance.

  4. What is the purpose of satin or matte finishes on surgical instruments?

    Answer: To reduce light reflection and glare under surgical lighting

    Satin or matte finishes reduce light reflection from surgical lighting, preventing glare that can impair the surgeon's vision during procedures.

  5. What is laser welding used for in surgical instrument repair?

    Answer: To repair cracks, rebuild worn tips, and rejoin broken components with minimal heat damage

    Laser welding enables precision repair with focused energy to rejoin components, fill cracks, and rebuild tips with minimal surrounding heat damage.

  6. Why are some surgical instruments made with titanium instead of stainless steel?

    Answer: Titanium offers superior strength-to-weight ratio, biocompatibility, and MRI compatibility

    Titanium instruments are approximately 40% lighter while maintaining comparable strength, are highly biocompatible, non-magnetic (MRI-safe), and extremely corrosion-resistant.