Part 1: Demographic Information 1. Your Age 18-25 years old 26-35 years old 36-45 years old 46-55 years old 56-65 years old
2. Your Gender Male Female Prefer not to say
3. Duration of your upper extremity Peripheral Nerve Injury (PNI) Less than 3 months 6 months - 1 year 1-3 years More than 3 years
4. Where is your tactile/temperature perception impairment mainly located? (Multiple choice) Palm Fingers Wrist Forearm Whole upper limb
5. What is the degree of impairment in your temperature perception of contacted objects? Complete inability to perceive hot/cold Only perceive extreme high/low temperature Severe delay in perception Mild impairment in perception
Part 2: Daily Scald Experience & Safety Risk 6. In the past 6 months, have you experienced accidental scalds/burns caused by the inability to perceive temperature? Never 1-2 times 3-5 times More than 5 times
7. In which scenarios do you most frequently experience accidental scalds? (Multiple choice) Kitchen cooking (stir-frying, boiling water, etc.) Daily catering (holding hot water, hot tableware, etc.) Home appliance use (iron, water heater, light bulb, etc.) Outdoor scenarios (sun-exposed metal railings, car handles, etc.) Other scenarios
8. What are the main impacts on you after a scald incident? (Multiple choice) Skin damage and pain Aggravate nerve discomfort and affect sensory recovery Anxiety and fear of high-temperature scenarios Afraid to complete relevant daily activities independently No obvious serious impact
9. Do you voluntarily give up daily activities such as cooking, making tea, and ironing because of the fear of scalding? Completely give up, fully rely on family assistance Mostly give up, only do it with company Slightly give up, only avoid extremely high-risk activities Never give up, carry out as usual
Part 3: Pain Points in Daily Activities & Existing Coping Methods 10. What are the main ways you avoid scalding when touching high-temperature objects in daily life? (Multiple choice) Full-time visual monitoring, always staring at hand movements Wear thick heat-insulating gloves Only use parts of the body with normal perception to touch objects Fully rely on family members to operate No fixed coping methods
11. If you use heat-insulating gloves, what are your core pain points? (Multiple choice) Seriously affect fine hand movements, unable to grasp and operate items Stuffy and uncomfortable to wear Cannot adapt to all scenarios, unusable in many situations Strong medical appearance, embarrassing to wear in daily life I do not use heat-insulating gloves
12. If you rely on visual monitoring to avoid scalding, what are your core pain points? (Multiple choice) Require full attention, easily lead to cognitive fatigue Accidents happen when sight is slightly distracted Cannot monitor effectively in strong light or dim environment Cannot do multiple things at the same time, seriously affect life efficiency
13. What is the biggest shortcoming of all the scald protection methods you currently use? Cannot achieve active early warning, only passive protection Seriously affect the independence and flexibility of daily activities Poor wearing/using experience, cannot stick to long-term use Poor appearance adaptability, cannot integrate into daily scenes
Part 4: Product Demand for Wearable Thermal Warning Wristband 14. Are you willing to try a wristband product that can real-time monitor external temperature and actively warn before contacting high temperature?□ 非常愿意 Very willing Willing Not sure Unwilling Completely unwilling
15. For you, what are the core functional requirements of this wristband? (Multiple choice) Non-contact advance detection of object temperature Multi-level temperature warning (different warning intensity for different temperatures) Vibration/sound-light dual warning mode Long battery life, more than 7 days per charge Waterproof and dustproof, suitable for kitchen, outdoor and other scenarios Customizable warning temperature threshold
16. What is your most acceptable warning method? Wrist vibration Light flashing Buzzer prompt Mobile APP push notification Combination of multiple methods
17. For long-term daily wear, what are your core requirements for the wristband? (Multiple choice) Lightweight, weight no more than 40g Skin-friendly material, no allergy risk Adjustable size, suitable for different wrist circumferences Simple and daily appearance, no obvious medical device feeling Sweat-proof and non-slip, not falling off during exercise/sweating
18. What is your expected detection and warning distance of this wristband? 1-3cm before contact, short-range accurate warning 3-5cm before contact, medium-range advance warning 5-10cm before contact, long-range advance warning
19. What is your acceptable price range for this wristband with the above functions? Within ￥500 ￥500-1000 ￥1000-2000 Above￥2000
20. Do you have any other needs or suggestions for this wristband product? (Open-ended question)
Thank you very much for taking the precious time to participate in this survey! Your feedback is crucial to our research. If you are willing to participate in the follow-up in-depth interview, you can leave your contact information, and we will provide you with a small gift as a token of gratitude. Wish you a happy life!