초록 ▼

○ Multi-scan 구현을 위한 Hybrid-Beamforming 기술 확보
○ Hybrid 초음파 모듈을 이용한 Linear/Convex/Sector scan 겸용 Multi-scan 기술 확보
○ Hybrid 초음파 모듈의 빔시뮬레이션 및 검증 기술 확보
○ 진단 방법 확장을 위한 Spectral/Color Doppler 진단 기능 개발 확보
○ 주요 압전 물성인 유전률 (~2400), 주파수 정수 (~2000 Hz-m), 커플링 계수(~54 %), d33 압전 상수(~500 pC/N), 기계적 품질 계

○ Multi-scan 구현을 위한 Hybrid-Beamforming 기술 확보
○ Hybrid 초음파 모듈을 이용한 Linear/Convex/Sector scan 겸용 Multi-scan 기술 확보
○ Hybrid 초음파 모듈의 빔시뮬레이션 및 검증 기술 확보
○ 진단 방법 확장을 위한 Spectral/Color Doppler 진단 기능 개발 확보
○ 주요 압전 물성인 유전률 (~2400), 주파수 정수 (~2000 Hz-m), 커플링 계수(~54 %), d33 압전 상수(~500 pC/N), 기계적 품질 계수 (167), 상전이 온도(~300 ℃), 항전계 (12kV/cm)를 가지는 조성을 확보
○ Andorid / iOS 운영 기반 복합영상출력 플랫폼 구축을 위한 1차 플랫폼 제작
○ 복합 프로브 영상 화질 개선을 위한 기존 초음파 장비를 활용한 알고리즘 개발
○ 다용도 handheld 초음파 진단기 개발을 위한 병원-기업 협업 프로세스 구축

(출처 : 보고서 요약서 3p)

Abstract ▼

Purpose & Contents
○ Optimized function and algorithm development for hand-held ultrasound imaging device that each medical staff can easily carry and use multi-purpose to make new market.
○ This proposal proposes to develop piezoelectric transducer by constructing multilayer structure that us

Purpose & Contents
○ Optimized function and algorithm development for hand-held ultrasound imaging device that each medical staff can easily carry and use multi-purpose to make new market.
○ This proposal proposes to develop piezoelectric transducer by constructing multilayer structure that uses thin and thick film process instead of commonly utilized bulk PZT. Such structure will significantly reduce operation voltage and power. Development of new materials required for matching and backing layers, improvement of their packing and integration, and coating technique of highly adhesive parylene will leverage into excellent performance and reliability.
○ The purpose of this study is to develop a mobile diagnosis system on mobile smart device for multi-use handheld ultrasound device. The multi-use handheld ultrasound device is consisted of three transducer types(linear, convex, and sector scan type). The research of a mobile diagnosis system is also including image enhancement, and diagnostic support tools.
○ Making and execution of cooperation process between hospital and company for developing the multi-use handheld ultrasound device.

Results
○ Hybrid-Beamforming Technology development for multi-scanning
- Hybrid-Beamforming algorithm development that each transducer type, TX/RX beamforming algorithm for multi-scanning supports in single transducer.
- To development optimized beamforming algorithm through limit analysis in attenuation coefficient and the attenuation of the ultrasonic signals in the frequency of Near Field Length.
○ We obtained a PZT powder composition that has 2400 of dielectric constant, 2000 Hz-m of frequency constant, 54% of coupling coefficient, 500 pC/N of d33 constant, 167 of mechanical quality factor, 300℃ of phase transition temperature, and 12 kV/cm of coercive electric field.
○ The algorithm development using existing ultrasound device for multi-use handheld ultrasound image quality enhancement
● The algorithm development using existing ultrasound device for speckle noise reduction
● The new algorithm showed an speckle noise reduction effect
○ Linear / Convex / Sector scan type – functional diagnostic software checked up necessary list
● The functional diagnostic software secured necessary list
○ Building linical research cases of the multi-purpose ultrasound machine for acquiring Korea medical device certification. We developed 7 cases of clinical research and approved a case by Gacheon Gil Hospital Institute IRB.

Expected Contribution
○ By developing technology in this project, we secure leading technology in PoC ultrasound imaging device market and also, can preempt the next generation medical device market.
○ Clinical requirement report is evaluated quality of image, UI and UX through demonstration by development stage ultrasound machine, which is effectively to decide the performance and specification of ultrasound machine.

(출처 : SUMMARY 5p)

목차 Contents

• 표지 ... 1
• 제 출 문 ... 2
• 보고서 요약서 ... 3
• 요약문 ... 4
• SUMMARY ... 5
• Contents ... 6
• 목차 ... 6
• 제1장. 연구개발과제의 개요 ... 7
• 제2장. 국내외 기술 개발 현황 ... 13
• 제3장. 연구 수행 내용 및 성과 ... 17
• 1세부 ... 17
• 2세부 ... 61
• 3세부 ... 88
• 4세부 ... 110
• 제5장. 연구개발성과의 활용계획 ... 121
• 1세부 ... 121
• 2세부 ... 122
• 3세부 ... 122
• 4세부 ... 124
• 제6장. 연구 과정에서 수집한 해외 과학기술 정보 ... 125
• 1세부 ... 125
• 2세부 ... 128
• 3세부 ... 128
• 4세부 ... 129
• 제7장. 연구개발성과의 보안등급 ... 131
• 제8장. 국가과학기술종합정보시스템에 등록한 연구시설·장비현황 ... 132
• 제9장. 연구개발과제 수행에 따른 연구실 등의 안전 조치 이행 실적 ... 133
• 1세부 ... 133
• 2세부 ... 134
• 3세부 ... 134
• 4세부 ... 135
• 제10장. 연구개발과제의 대표적 연구 실적 ... 136
• 제11장. 기타 사항 ... 137
• 제12장. 참고 문헌 ... 138
• 끝페이지 ... 141