Reduced penetration force through ultrasound activation of a standard needle: An experimental and computational study

TY - GEN

T1 - Reduced penetration force through ultrasound activation of a standard needle

T2 - 2013 IEEE International Ultrasonics Symposium, IUS 2013

AU - Liao, Xiaochun

AU - Sadiq, Muhammad

AU - Corner, George

AU - Cochran, Sandy

AU - Huang, Zhihong

PY - 2013/12/1

Y1 - 2013/12/1

N2 - Needle insertion in soft tissue has attracted considerable attention in recent years because of its applications in minimally invasive percutaneous procedures such as cancer biopsy and regional anaesthesia. Tissue deformation and needle deflection contingent on needle penetration force are common reasons behind needle placement errors, leading to missampling in biopsy, incomplete anaesthesia, and possible post-operative morbidity. In this paper, we report the design of an ultrasonic device, based on a piezoelectric transducer with a sandwich structure, to reduce the standard needle's penetration force and deflection. Experimental trials were carried out on brain-mimicking phantom and ex vivo porcine tissue. The results show that a standard needle with ultrasound actuation can achieve force reduction by 34.5% and deflection reduction by 38.3%. In addition, numerical simulation of static and dynamic forces was conducted. A comparison between experimental and computational results demonstrates very close agreement. All the experimental and computational results suggest success in the proposed ultrasonic device's ability to perform accurate biopsy and regional anaesthesia.

AB - Needle insertion in soft tissue has attracted considerable attention in recent years because of its applications in minimally invasive percutaneous procedures such as cancer biopsy and regional anaesthesia. Tissue deformation and needle deflection contingent on needle penetration force are common reasons behind needle placement errors, leading to missampling in biopsy, incomplete anaesthesia, and possible post-operative morbidity. In this paper, we report the design of an ultrasonic device, based on a piezoelectric transducer with a sandwich structure, to reduce the standard needle's penetration force and deflection. Experimental trials were carried out on brain-mimicking phantom and ex vivo porcine tissue. The results show that a standard needle with ultrasound actuation can achieve force reduction by 34.5% and deflection reduction by 38.3%. In addition, numerical simulation of static and dynamic forces was conducted. A comparison between experimental and computational results demonstrates very close agreement. All the experimental and computational results suggest success in the proposed ultrasonic device's ability to perform accurate biopsy and regional anaesthesia.

KW - Medical ultrasonic needle

KW - Needle intervention

KW - Penetration force reduction

KW - Piezoceramic transducer

UR - https://www.scopus.com/pages/publications/84894385889

U2 - 10.1109/ULTSYM.2013.0364

DO - 10.1109/ULTSYM.2013.0364

M3 - Conference contribution

AN - SCOPUS:84894385889

T3 - IEEE International Ultrasonics Symposium, IUS

SP - 1436

EP - 1439

BT - 2013 IEEE International Ultrasonics Symposium, IUS 2013

PB - IEEE

Y2 - 21 July 2013 through 25 July 2013

ER -