A Cost-Effective, Non-Invasive System for Pressure Monitoring during Epidural Needle Insertion: Design, Development and Bench Tests

Marco Tesei1, Paola Saccomandi, Carlo Massaroni1, Rossella Quarta2, Massimiliano Carassiti, Emiliano Schena1, Roberto Setola

  • 1Università Campus Bio-Medico di Roma
  • 2Università Campus Bio-Medico di Roma, Rome-Italy

Details

Category

Contributed Papers (Oral)

Theme

Therapeutic & Diagnostic Systems and Technologies

Sessions

08:00 - 09:30 | Wed 17 Aug | Fantasia N | WeAT10

Cardiovascular Diagnostic Systems and Technologies

Abstract

Epidural blockade procedures have gained large acceptance during last decades. However, the insertion of the needle during epidural blockade procedures is challenging, and there is an increasing alarming risk in accidental dural puncture. One of the most popular approaches to minimize the mentioned risk is to detect the epidural space on the base of the loss of resistance (LOR) during the epidural needle insertion. The aim of this paper is to illustrate an innovative and non-invasive system able to monitor the pressure exerted during the epidural blockade procedure in order to detect the LOR. The system is based on a Force Sensing Resistor (FSR) sensor arranged on the top of the syringe's plunger. Such a sensor is able to register the resistance opposed to the needle by the different tissues transducing the pressure exerted on the plunger into a change of an electrical resistance. Hence, on the base of a peculiar algorithm, the system automatically detects LOR providing visual and acoustic feedbacks to the operator improving the safety of the procedure. Experiments have been performed to characterize the measurement device and to validate the whole system. Notice that the proposed solution is able to perform an effective detection of the LOR.

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