Expert-level medical device design covering regulatory pathways, design controls, biocompatibility, sterilization, risk management, and verification and validation.
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FDA classification: Class I low risk, Class II moderate risk, Class III high risk. 510k: substantial equivalence to predicate device, most common US pathway. PMA: premarket approval for Class III, clinical data required. De Novo: new low to moderate risk device without predicate. CE marking: EU pathway, MDR 2017/745 regulation, notified body review.
Design and development planning: document stages, reviews, verification, validation. User needs: capture intended use, patient population, use environment. Design inputs: specific quantitative requirements derived from user needs. Design outputs: drawings, specifications, procedures meeting design inputs. Design verification: confirm outputs meet inputs through testing. Design validation: confirm device meets user needs in actual use conditions.
ISO 10993: framework for biological evaluation of medical devices. Contact duration: limited, prolonged, permanent contact categories. Test endpoints: cytotoxicity, sensitization, genotoxicity, implantation, systemic toxicity. Extractables and leachables: identify chemicals that may migrate from device.
ISO 14971: risk management for medical devices, required by regulations. Hazard identification: all potential harms from device use and misuse. Risk estimation: severity times probability of harm occurrence. Risk control: design, protective measures, information for safety. Residual risk: remaining risk after controls, must be acceptable.
| Pitfall | Fix |
|---|---|
| Starting development without design controls | Establish design control procedure at project start |
| Confusing verification and validation | Verification tests specs, validation tests user needs |
| Incomplete risk analysis | Identify hazards from all use scenarios including misuse |
| Wrong biocompatibility testing scope | Match test battery to contact type and duration |
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概要と使いどころ
Expert-level abstract algebra knowledge. Use when working with groups, rings, fields, modules, Galois theory, representation theory, or algebraic structures. Also use when the user mentions 'group', 'ring', 'field', 'homomorphism', 'isomorphism', 'normal subgroup', 'quotient group', 'Sylow theorem', 'Galois theory', 'polynomial ring', 'ideal', 'module', 'vector space', or 'representation theory'.
日本語の概要は準備中です。原文の説明を表示しています。
Expert-level acoustics knowledge. Use when working with sound waves, acoustic propagation, resonance, standing waves, Doppler effect, room acoustics, ultrasound, noise control, musical acoustics, or architectural acoustics. Also use when the user mentions 'sound wave', 'decibel', 'frequency', 'resonance', 'standing wave', 'Doppler effect', 'acoustic impedance', 'reverberation', 'ultrasound', 'noise control', 'harmonics', or 'sound intensity'.
日本語の概要は準備中です。原文の説明を表示しています。
Expert-level aerodynamics covering subsonic and supersonic flow, lift and drag, airfoil theory, boundary layers, compressible flow, and CFD methods.
日本語の概要は準備中です。原文の説明を表示しています。
Expert-level air quality engineering covering pollutant sources, atmospheric dispersion, air quality standards, emission controls, and air quality modeling.
日本語の概要は準備中です。原文の説明を表示しています。
Expert-level aircraft structures covering structural design philosophy, wing and fuselage analysis, fatigue and damage tolerance, composite structures, and certification.
日本語の概要は準備中です。原文の説明を表示しています。
Expert-level algorithms and complexity theory covering sorting, searching, graph algorithms, dynamic programming, greedy algorithms, NP-completeness, and algorithm design paradigms.
日本語の概要は準備中です。原文の説明を表示しています。