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一种用于小肠无创伤牵拉的软性机器人模块化腹腔镜抓持器。

A soft robotic, modular laparoscopic grasper for atraumatic retraction of the small intestine.

作者信息

Kinnicutt Lorenzo, Gaeta Leah T, Rogatinsky Jacob, Lee Jungjae, Cameron Amy, Naik Amartya J, Hess Donald T, Ranzani Tommaso

机构信息

Department of Mechanical Engineering, Boston University College of Engineering, Boston, MA, USA.

Department of Electrical & Computer Engineering, Boston University College of Engineering, Boston, MA, USA.

出版信息

Device. 2024 Oct 18;2(10). doi: 10.1016/j.device.2024.100560.

Abstract

In order to address the risk of iatrogenic trauma and retraction challenges associated with minimally invasive surgery, we propose a novel laparoscopic grasper equipped with a suction unit and elastomeric actuators that are inherently soft and compliant, as well as sensors to monitor tissue interaction forces. The device complies with laparoscopic size constraints by entering the abdominal cavity in a closed configuration, then expanding upon entry to gently grasp and retract even severely dilated intestinal segments. In order to minimize the usage of surgical access ports and personnel, the end effector of the proposed grasper is designed to detach and be anchored to the abdominal wall to serve as a passive retraction mechanism. Testing has demonstrated the ability of the proposed grasper to hold and retract and intestinal segments in various contexts, including intestines that have been dilated with air and water to represent small bowel distention.

摘要

为了应对与微创手术相关的医源性创伤风险和牵拉挑战,我们提出了一种新型腹腔镜抓钳,它配备了一个抽吸单元和本质柔软且顺应性良好的弹性体致动器,以及用于监测组织相互作用力的传感器。该设备通过以闭合构型进入腹腔,然后在进入时展开,以轻柔地抓取和牵拉甚至严重扩张的肠段,从而符合腹腔镜尺寸限制。为了尽量减少手术接入端口和人员的使用,所提出的抓钳的末端执行器设计为可分离并固定在腹壁上,以作为被动牵拉机制。测试已经证明,所提出的抓钳能够在各种情况下夹持和牵拉肠段,包括用气和水扩张以模拟小肠扩张的肠段。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3b7d/12309402/643dcaa881cc/nihms-2032241-f0002.jpg

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