Vaughan Neil, Dubey Venketesh N, Wee Michael Y K, Isaacs Richard
School of Design, Engineering & Computing, Bournemouth University, Poole, UK.
Proc Inst Mech Eng H. 2013 Jul;227(7):767-77. doi: 10.1177/0954411913483428. Epub 2013 Apr 4.
The amount of pressure exerted on the syringe and the depth of needle insertion are the two key factors for successfully carrying out epidural procedure. The force feedback from the syringe plunger is helpful in judging the loss of pressure, and the depth of the needle insertion is crucial in identifying when the needle is precisely placed in the epidural space. This article presents the development of two novel wireless devices to measure these parameters to precisely guide the needle placement in the epidural space. These techniques can be directly used on patients or implemented in a simulator for improving the safety of procedure. A pilot trial has been conducted to collect depth and pressure data with the devices on a porcine cadaver. These measurements are then combined to accurately configure a haptic device for creating a realistic in vitro experience of epidural needle insertion.
施加在注射器上的压力大小和针头插入的深度是成功进行硬膜外穿刺操作的两个关键因素。来自注射器活塞的力反馈有助于判断压力的丧失，而针头插入的深度对于确定针头何时精确置于硬膜外腔至关重要。本文介绍了两种新型无线设备的开发，用于测量这些参数，以精确引导针头在硬膜外腔中的放置。这些技术可直接应用于患者，或在模拟器中实施以提高操作的安全性。已经进行了一项初步试验，使用这些设备在猪尸体上收集深度和压力数据。然后将这些测量结果结合起来，精确配置一个触觉设备，以创造一种逼真的硬膜外针插入体外体验。
