A Methodology for Ultrasound Product Development - Ultrasonic ...

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Modeling Sound in Tissue • Experimental • Live and excised tissue are very different • Interceding tissue • Bone (e.g. for brain) • Fat • Muscle layers • Modeling issues • Non-linearity (KZK) • Acoustics affects thermal affects acoustics … • If heat matters, boundary conditions are key • Beam entrance • Perfusion 20
Case Study: HIFU for Fat Ablation • Goal: Dissolve fat under skin • IP status: patentable • Biology: very complicated • Tissue: skin, fat, muscle • Success determined by heat, damage, resorption • Huge anatomical variability • Physics: Heat tissue to 50C, 4 seconds, 15-25 mm deep • Beam: F/1.2, 3 to 4 MHz, 30W max • Transducer: water standoff for coupling and cooling • Tests: phantom had to be developed 21
Page 1 and 2: A Methodology for Ultrasound Produc
Page 3 and 4: Ultrasound Medical Devices - the Ch
Page 11 and 12: Ultrasound Medical Device Challenge
Page 13 and 14: Ultrasound Medical Device Challenge
Page 15 and 16: Development Project Outline Goal: R
Page 17 and 18: Development Project - Ground Work T
Page 19: Development Project Project outline
Page 23 and 24: Case Study: HIFU Location Problems
Page 25 and 26: Case Study: HIFU Uniformity Problem
Page 27 and 28: Case Study: HIFU Surface Cooling 27
Page 29 and 30: Case Study: HIFU Gel Burns 29
Page 41 and 42: Case Study: HF transducer for imagi
Page 43 and 44: Case Study: High Frequency Imaging
Page 45 and 46: Case Study: High Frequency Imaging
Page 47 and 48: Case Study: Ranging Catheter Applic
Page 49 and 50: Case Study: Ranging Catheter Applic
Page 51 and 52: Case Study: Ranging Catheter Conclu
Page 53 and 54: What we’ve learned - 1 • Ultras
Page 55 and 56: What we’ve learned - 2 • A good
Page 57 and 58: What we’ve learned - 3 Medical de

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