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Towards a realistic in vitro experience of epidural Tuohy needle insertion.

Vaughan, N., Dubey, V. N., Wee, M.Y.K. and Isaacs, R., 2013. Towards a realistic in vitro experience of epidural Tuohy needle insertion. Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, 227 (7), 767 - 777 .

Full text available as:

IMechE_paper5_Preprint-accepted.pdf - Accepted Version


DOI: 10.1177/0954411913483428


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.

Item Type:Article
Uncontrolled Keywords:Epidural ; Tuohy needle ; anaesthesia ; depth measurement ; haptics ; insertion force ; Algorithms ; Anesthesia, Epidural ; Animals ; Epidural Space ; Equipment Design ; Feedback ; Models, Biological ; Needles ; Pilot Projects ; Signal Processing, Computer-Assisted ; Swine ; Transducers, Pressure ; Wireless Technology
Group:Faculty of Science & Technology
ID Code:22921
Deposited By: Symplectic RT2
Deposited On:25 Nov 2015 15:38
Last Modified:14 Mar 2022 13:54


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