一个微型的多方向堆叠超声波传感器用于内膜支气管镜肺结节切除
IEEE transactions on bio-medical engineering
|October 16, 2025
概括
研究人员开发了一种小型超声波传感器,用于早期肺癌治疗. 这种设备提供精确的,高功率的肺病变的切除,改善肺癌患者的生存率.
科学领域:
- 医疗器械 医疗器械
- 在瘤学瘤学.
- 生物医学工程 生物医学工程
背景情况:
- 肺癌是全球癌症死亡的主要原因之一.
- 早期诊断和治疗对于改善肺癌生存率至关重要.
- 超声波切除显示为肺结节治疗有前途,但在内镜装置中面临功率输出限制.
研究的目的:
- 开发一个小型的,多向的超声波传感器,用于在支气管镜检查期间准外围肺病变.
- 为了克服内镜超声波传感器的尺寸限制,提高输出功率.
- 为了验证开发的传感器在体外肺结节切除的有效性.
主要方法:
- 设计和制造了一种小型 (2.2 × 2.2 × 6.0 mm3) 多向超声波传感器,具有双层堆.
- 测试了传感器的功率输出和诱导组织切除温度升高的能力.
- 使用模仿肺结节和牛肺组织的温度敏感材料进行了体外实验.
- 使用热摄像头和颜色变异分析估计的废除病变大小.
主要成果:
- 微型传感器实现了高效的高功率输出,尽管它的小形状因素.
- 该装置在3分钟内引起了超过65°C的温度升高,适合组织切除.
- 在体外试验表明,在4毫米的深度成功地切除了模拟的肺结节 (7.3 × 4.2 × 3.1毫米3).
结论:
- 开发的微型,多向超声波传感器是有效的模拟肺结节的精确切切除.
- 这项技术具有显著的潜力,可以通过支气管镜检查对早期肺癌进行最小侵入性治疗.
- 进一步的发展可能会导致对周围肺病变的治疗干预措施得到改善.
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