The aim of this study was to design an applicator for haemostasis usage needing lower acoustic intensities (<880 W/cm2) than in previous devices intended for it, which is based on ultrasound propagation FEM modelling using a 2-MHz HIFU transducer. Materials and methods: Acoustic field characterisation and numerical simulations in water were performed with and without the proposed applicator. Parameters such as form factor, ellipsoidal shape ratio, and Euclidean distance were used (among others) to compare simulated data with transducer measurements without applicator. A low density polyethylene cone was manufactured from geometries validated from acoustic field modelling.
R.M.V. acknowledges CONACYT (Mexico) for fellowship number 219341 and the ‘Ultrasonic Systems and Technologies Laboratories (ITEFI-CSIC)’ for a scientific stay in Madrid related to this work. The authors acknowledge the funding given by the ECOS-ANUIES-CONACYT M10-S02 programme, the CONACYT-F-SALUD 201590 project, CONACYT-F-SALUD 201256 and the Joint Cooperation Fund Mexico–Uruguay (SRE-AUCI) 2012–2013.
