心室辅助装置（人工心脏泵）起什么作用？
What does a ventricular assist device do?
它用机械泵部分或完全代替衰弱心脏泵血，维持全身循环，常作为心脏移植前的过渡或终末期心衰的长期支持。
It uses a mechanical pump to partially or fully replace a failing heart's pumping, maintaining circulation as a bridge to transplant or long-term support.
难度 专业 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
Bronzino《生物医学工程手册》；医疗器械标准（ISO 13485）
Bronzino, Biomedical Engineering Handbook; medical device standards (ISO 13485)
独立核验依据 · Independent verification: 核验依据 1 OPENLIBRARY 标识 /works/OL4781638W：The Biomedical Engineer
#生物医学 #人工心脏
胰岛素泵如何工作？
How does an insulin pump work?
它用微型泵按算法持续皮下输注基础量胰岛素，并在餐前追加大剂量，模拟健康胰腺的分泌节律，帮助糖尿病人控糖。
A micro-pump delivers a continuous basal insulin dose and meal-time boluses, mimicking healthy pancreatic rhythm to control blood sugar in diabetics.
难度 专业 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
Bronzino《生物医学工程手册》；医疗器械标准（ISO 13485）
Bronzino, Biomedical Engineering Handbook; medical device standards (ISO 13485)
独立核验依据 · Independent verification: 核验依据 1 OPENLIBRARY 标识 /works/OL4781638W：The Biomedical Engineer
#生物医学 #胰岛素泵
人工肾（透析）依靠什么原理净化血液？
What principle does an artificial kidney (dialysis) use to clean blood?
透析利用半透膜两侧的浓度差，让小分子代谢废物（如尿素）和多余水分扩散到透析液中，而血细胞和大分子蛋白保留在血液里。
Dialysis relies on a semipermeable membrane: small wastes like urea and excess water diffuse into the dialysate while blood cells and large proteins stay behind.
难度 专业 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
Bronzino《生物医学工程手册》；医疗器械标准（ISO 13485）
Bronzino, Biomedical Engineering Handbook; medical device standards (ISO 13485)
独立核验依据 · Independent verification: 核验依据 1 OPENLIBRARY 标识 /works/OL4781638W：The Biomedical Engineer
#生物医学 #人工肾
人工关节常用什么材料？
What materials are artificial joints usually made of?
常用生物相容性好的钛合金、钴铬钼合金以及超高分子量聚乙烯作摩擦面，既耐磨又不易被人体排斥。
They use biocompatible titanium or cobalt-chrome alloys with ultra-high-molecular-weight polyethylene bearing surfaces, wear-resistant and well tolerated.
难度 进阶 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
Bronzino《生物医学工程手册》；医疗器械标准（ISO 13485）
Bronzino, Biomedical Engineering Handbook; medical device standards (ISO 13485)
独立核验依据 · Independent verification: 核验依据 1 OPENLIBRARY 标识 /works/OL4781638W：The Biomedical Engineer
#生物医学 #植入物
除颤器抢救心脏的原理是什么？
How does a defibrillator rescue a heart?
当发生室颤时心肌乱跳，除颤器释放一次高能电脉冲使全部心肌同步除极，争取让窦房结重新主导正常节律。
In ventricular fibrillation the muscle quivers; a defibrillator delivers a high-energy shock to depolarize all of it at once, letting the natural pacemaker regain control.
难度 进阶 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
Bronzino《生物医学工程手册》；医疗器械标准（ISO 13485）
Bronzino, Biomedical Engineering Handbook; medical device standards (ISO 13485)
独立核验依据 · Independent verification: 核验依据 1 OPENLIBRARY 标识 /works/OL4781638W：The Biomedical Engineer
#生物医学 #除颤
数字助听器比老式有什么进步？
How are digital hearing aids better than old ones?
数字助听器用麦克风采集声音后经数字信号处理器降噪、分频放大，可按听损曲线个性化补偿，还能抑制啸叫和突发噪声。
Digital aids use a DSP to denoise and frequency-shape sound to the user's loss profile, suppressing feedback and sudden noise, far more personalized than analog.
难度 进阶 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
Bronzino《生物医学工程手册》；医疗器械标准（ISO 13485）
Bronzino, Biomedical Engineering Handbook; medical device standards (ISO 13485)
独立核验依据 · Independent verification: 核验依据 1 OPENLIBRARY 标识 /works/OL4781638W：The Biomedical Engineer
#生物医学 #助听器
呼吸机怎样帮人呼吸？
How does a ventilator help breathing?
它向气道施加正压把气体送入肺部（正压通气），并按设定频率和潮气量维持氧合与二氧化碳排出，用于麻醉或呼吸衰竭。
It pushes gas into the lungs with positive pressure at set rates and volumes, maintaining oxygenation and CO2 removal during anesthesia or respiratory failure.
难度 进阶 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-11-03
来源 · Source
Bronzino《生物医学工程手册》；医疗器械标准（ISO 13485）
Bronzino, Biomedical Engineering Handbook; medical device standards (ISO 13485)
独立核验依据 · Independent verification: 核验依据 1 OPENLIBRARY 标识 /works/OL4781638W：The Biomedical Engineer
#生物医学 #呼吸机