在上泌尿道内进行剖析的无微型抓手
Wangqu Liu1, Ridwan Alam2, Si Young Choi1
1Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD, 21218, USA.
Advanced healthcare materials
|August 5, 2024
概括
新的微机器人 (μ-grippers) 是温度激活的,用于精确的上部泌尿道活检. 这些不受束的设备为诊断和治疗诸如上管尿道癌等疾病提供了有前途的工具.
科学领域:
- 生物医学工程 生物医学工程
- 最少侵入性的手术
- 泌尿器科 泌尿器科 泌尿器科 泌尿器科
背景情况:
- 上道尿路癌 (UTUC) 的诊断和治疗需要进入上尿路.
- 目前的方法在组织采样,疾病分类,治疗完整性和向药物输送方面面临挑战.
- 无绑定的微机器人为复杂解剖区域的干预提供了潜在的解决方案.
研究的目的:
- 引入温度触发的微抓手 (μ-grippers) 用于在上泌尿道中进行自主活检.
- 评估μ-grippers用于组织检索和组织病理学分析的可行性和有效性.
- 探索μ-grippers在尿路诊断和治疗中更广泛应用的潜力.
主要方法:
- 开发自主触发的,对温度敏感的微型抓手 (μ-grippers).
- 通过标准的尿路导管和磁场引导的机动进行部署.
- 对猪尿道进行ex vivo测试,以评估组织活检能力.
- 采集的组织样本的组织病理学检查 (H&E和GATA3染色).
- 统计模拟比较μ-grippers与传统的尿道镜工具.
主要成果:
- 在ex vivo猪尿道中成功部署和操纵了μ-grippers.
- 微型抓手表现出足够的力量来获取尿路组织样本.
- 活检样本的质量足以进行详细的组织病理学和免疫组织化学分析.
- 模拟显示了与传统活检仪器相比的潜在优势.
结论:
- 温度触发的μ-grippers是上泌尿道活检的一个可行的工具.
- 这项技术对改善UTUC诊断和治疗充满希望.
- 多功能性和制造可扩展性表明微机器人在泌尿病学中具有更广泛的应用.
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