COMPOSITE TRANSDUCERS FOR MEDICAL ULTRASONICS

医用超声波复合换能器

• 批准号: 3186415
• 负责人: James Fowler Greenleaf
• 金额: $ 21.4万
• 依托单位: MAYO CLINIC ROCHESTER
• 依托单位国家: 美国
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-01-01 至 1995-11-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/3186415
• 关键词: ceramics; clinical biomedical equipment; image processing; imaging /visualization /scanning; mathematical model; monitoring device; phantom model; polymers; ultrasound

The goal of this multidisciplinary collaborative program is to produce transducers for medical imaging that have lower insertion loss, broader bandwidth, better out-of-plane resolution, and greater depth of field than currently available. Our approach to achieving these goals is to design and construct transducers using novel ferroelectrics and new composite designs. Development of new ferroelectrics, their construction into composites, and evaluation of their imaging capabilities will be achieved using the combined expertise of five groups, Mayo Ultrasound Research Laboratory, Honeywell Ceramics Center (consulting with Ceramic Process System Corporation), and Echo ultrasound (in consultation with a professor at Penn State University). This team approach is devised to increase feed back, optimize efficiency of innovation, and shorten the time for results to become available to the imaging community. The Ceramics Center will produce novel piezoceramics such as relaxor ferroelectrics and antiferroelectrics which have desirable properties for medical imaging transducers. Echo Ultrasound will fabricate these special ceramics into composite transducers with optimal characteristics for medical imaging. The Mayo ultrasound group will test the imaging capabilities of the resulting transducers, design and investigate new transducers that produce nondiffracting beams, and guide and coordinate the efforts of the team Timely public disclosure of the results is assured by the fact that the principal investigator is in an academic environment. This program represents an opportunity for NIH to bring together experts who otherwise would not ordinarily collaborate on the design and construction of ultrasonic transducers for medical imaging.

这个多学科合作计划的目标是生产 用于医学成像的换能器具有较低的插入损耗， 带宽、更好的面外分辨率和更大的景深， 目前可用。 我们实现这些目标的方法是设计 并使用新型铁电体和新型复合材料构建传感器 的设计. 新型铁电体的发展， 复合材料，并评估其成像能力将实现 利用五个小组的专业知识，马约超声研究 霍尼韦尔陶瓷中心实验室（陶瓷工艺咨询 System Corporation）和Echo超声（咨询教授 在宾夕法尼亚州立大学）。 这种团队合作的方式是为了增加饲料 优化创新效率，缩短成果时间 to become成为available可用to the imaging成像community社区. 陶瓷中心将 生产新型压电陶瓷，例如弛豫铁电体， 具有医学成像所需性能的反铁电体 传感器 Echo Ultrasound将把这些特殊的陶瓷制成 具有最佳特性的复合换能器，用于医学成像。 马约超声小组将测试的成像能力 由此产生的换能器，设计和研究新的换能器， 无衍射光束，并指导和协调团队的努力， 及时公开披露结果的保证是， 首席研究员处于学术环境中。 这个项目为NIH提供了一个机会， 否则通常不会在设计上合作的专家， 用于医学成像的超声换能器的构造。