In vivo experimental study of thermal problems for rechargeable neurostimulators.

作者: Shaobo Chen , Qingfeng Li , Weiming Wang , Bozhi Ma , Hongwei Hao

DOI: 10.1111/NER.12044

关键词: Biomedical engineeringLinear relationshipMedicineSkin temperaturePatient anxietyImplantThermalImplant deviceSurgeryEddy currentIn vivo

摘要: Objectives Eddy currents in the metal shell and copper losses coils generate heat rechargeable neurostimulators, which increases temperature of adjacent tissue, potentially causing thermal damage implant patients. Hence, there is an urgent need for a simple self-help method to measure such subcutaneous devices. Materials Methods A wireless system was fabricated tested with vivo experiments swine increasing temperatures both device skin. A total three were used study 13 charging tests. Results It found that skin rose consistently approximately linear relationship most time, demonstrating neurosimulator could be estimated from temperature. The equilibrium differences are all less than 2°C. Conclusions A convenient then given monitor evaluate hazards threshold 41°C. proposed approach can easily implemented by patient at home reduce risk, ease anxiety, improve clinical outcomes.

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