초록 ▼

환자 이송장치에 장착을 위한 장애 요소이었던 공기압 제어 방식에 의한 큰 부피, 중량과 불안정한 제어 성능을 전자 제어식으로 변경 개발함으로써 경박화와 제어 안정성을 이루어 환자이송장치와의 결합이 가능하였음. 특히 제어 안정성은 선진국 주도로 개정되는 표준심폐소생술의 국제 기준인 AHA guide line에 적극 대처가 가능하게 되어 동종 업계에서의 기술적 경쟁력을 보유하게 되었음. 또한 환자이송장치에 장착된 자동심폐소생기의 완성은 응급 현장으로부터 병원까지 중단 없는 심폐소생술 처치가 가능하게 되어 심정지 환자의 신속한 회복으로

환자 이송장치에 장착을 위한 장애 요소이었던 공기압 제어 방식에 의한 큰 부피, 중량과 불안정한 제어 성능을 전자 제어식으로 변경 개발함으로써 경박화와 제어 안정성을 이루어 환자이송장치와의 결합이 가능하였음. 특히 제어 안정성은 선진국 주도로 개정되는 표준심폐소생술의 국제 기준인 AHA guide line에 적극 대처가 가능하게 되어 동종 업계에서의 기술적 경쟁력을 보유하게 되었음. 또한 환자이송장치에 장착된 자동심폐소생기의 완성은 응급 현장으로부터 병원까지 중단 없는 심폐소생술 처치가 가능하게 되어 심정지 환자의 신속한 회복으로 소생 후의 뇌 손상이나 순환 장애를 줄일 수 있게 되어 국민 보건 증진에 기여하게 되었음. 완성된 시제품_으로 동물실험을 실시한 결과 전자 제어식 자동 심폐소생기가 생체에서 기계적 오작동 없이 사용될 수 있음을 확인하였으며, 순환회복을 유발할 수 있을 정도의 혈역학적 효과가 증명되었음 결론적으로 전자 제어식 자동 심폐소생기는 높은 관상동맥 관류압과 경동맥 혈류량을 유발할 수 있는 생체 사용 가능한 자동 심폐소생기로 검증되었음

Abstract ▼

1. Purpose and Necessity of Research and Development.
▶ As a result of `Aging population` and `increasing cardiovascular disease`, the number of patients with sudden cardiac arrest (SCA) is dramatically increasing and both direct and indirect economic lose are enormous. In case of occurrence of S

1. Purpose and Necessity of Research and Development.
▶ As a result of `Aging population` and `increasing cardiovascular disease`, the number of patients with sudden cardiac arrest (SCA) is dramatically increasing and both direct and indirect economic lose are enormous. In case of occurrence of SCA patient with critical condition at the out side of Hospital, the most important factor is regain the blood circulation and breathing as soon as possible therefore, `Oxygen` can be delivered to various locations of human body and tissues. `Cardiopulmonary Resuscitation (CPR)` is the most important emergency recluse tool to save people by means of an artificial methode of replace stoped patient`s breathing function and cardiac function for restoring patient vital sign. Automated CPR device, which can automatically perform the CPR, has been developed overseas and widespread. However, as a result of lower induction blood flow, restoration rate of patient has not been improved much. Humed has developed `Simultaneous Stemo-Thoracic (SST-CPR)` automated CPR device, which is drastically improved existing problem of lower blood flow with conventional standard CPR methode performed by manual CPR and existed CPR devices. This SST-CPR development project has completed through 2004 `Health & Medical Technology R&D Program` and the project name was "Development of SST-CPR pneumatic devices". The newly developed automated CPR device has been named as `X-CPR` and after has been granted of manufacturing certification from `Korean Food and Drug Administration (KFDA)`, `X-CPR` has been sales.
▶ However, previously developed SST-CPR device has been mainly used in emergency room at the Hospitals which can supply continuous oxygen. Inbound emergency rescue vehicles have not equipped automated CPR devices therefore, during patient transfer from the event sight to the hospital, CPR treatment has been relay on manual CPR. In order to improve the existing limitation, Humed decided to install the automated CPR device on to patient transfer equipment (Stretcher). For the purpose of mounting on the stretcher, the new CPR device must comply with control stability and light weight and thinner hight and the solution of this compliment is adapting `Electronic control system`.
▶ International standard AHA(American Heard Association) guide line of standard CPR has been changed from `1 time breathing after 5 times chest compress with compression speed of 80 compression per min.` to `2 times breathing after 30 times chest compression with compression speed of 100 compression per min.` and this change creates potential problem with numeric control instability, which can not be fixed and physical limitation of reduce the thickness of device, which caused by complexity and bulkiness of numeric control system.
2. Content and scope of Research and Development
▶ Electronic control circuit design with `Micom method` for control of automated CPR device Electronic control circuit has compounded with PCB Board of One Board Micom, Solenoid valve and battery and those parts are installed inside CPR device. Also, the detachable charger creates recharge condition therefore, in the case of emergency situation detached charger and immediately perform the CPR treatment. Improving response time of Micom PCB Board and Solenoid valve, it acquires control stability of CPR device at the faster compression speed environment, which has been changed from 80 times per min. to 100 times per min.. Moreover, minimal consumption of power and smaller and lighter of both control circuit and Solenoid valve, the battery can be minimized its capacity (1.2AH). These changes make that device lighter and thiner and more than 30 hrs. working time without recharge. In addition to this, new CPR device comply with 2005 AHA Guide line of standard CPR (2 times of breathing after 30 times chest compression with compression speed of 100 times per min.).
▶ Practical Automated CPR device using electronic control circuit
Electronic control automated CPR device has been compounded of case and internal parts such as drive mechanism, power supply, electronic control part, actuator and control valve and remote control. The Product physical specification after major improvement is that the hight is 7.5cm and weight is 11.2kg. Also, the new CPR device support remote control function, which makes rescue personnel react faster and facilitate themselves at the emergency environment.
▶ Patient transfer equipment design and manufacture for automated CPR device
Patient transfer equipment design to fit with local emergency rescue vehicle therefore, the stretcher manufactured for immediate use within existing emergency rescue system
▶ Practically combined with stretcher and electronic controled automated CPR device
Accomplishing the installation of Automated CPR device with electronic control circuit on to stretcher makes it possible to providing continuous CPR from the sight to the Hospital without interruption and the effectiveness has been validated through simulated test.
▶ Evaluating the performance through animal study
Electronic controled automated CPR device has smoothly perform 어 Dual induction blood flow CPR by sternal compression and thoracic constriction
3. Result of Research and Development
▶ Completion of automated CPR device installed onto patient transfer equipment makes it possible with non interrupt CPR treatment from emergency sight to the Hospital. It leads faster recovery of SCA patient and reduce cerebral damage or circulation difficulty.
▶ Existing obstacles for installing onto Stretcher such as bulky size and heavy weight of numeric control part and unstable control capability have been removed by adopting electronic control system and achieved lighter weight, thinner hight and control stability. Especially control stability is a key technical strength that actively react toward AHA guide line, which is set up by ad vane advanced countries and accepted as an international standard for standard CPR.
▶ Through animal study, it has been found that the electronic controled automated CPR device performed on the living body without any mechanical failure and also inducted hemodynamic effectiveness, which can induce circulation recovery, In addition to this, the hemodynamic effectiveness has been continuously maintained with changing the ratio of chest compression: ventilation from 15:2, 30:2, continuous compression mode by electronic control system. Conventionally perfusion pressure of coronary artery must be maintain over 12 mmHg for regain the circulation. With this animal study, electronic controled automated CPR device can create and maintain over 20 mmHg perfusion pressure of coronary artery in every cases. Moreover, high carotid arterial blood flow can be maintained and it may reduce the possibility of cerebral damage. In conclusion, electronic controled automated CPR device has been validated as a effective CPR device that it can be used on the living body with induce high perfusion pressure of coronary artery and carotid arterial blood flow.
4. Application Plan for the result of Research and Development
▶ After acquiring manufacturing certification for the Completed stretcher installed automated CPR device, new product will be launched on the market.
▶ Apply for the Intentional patent, CE & FDA certification, exporting and leading the local industry by advanced technology.
▶ Completed electronic controled CPR device will be utilized for evolving CPR device to fully automated and intelligent CPR device
▶ Stretcher installed automated CPR device can be combined with other medical devices and it will enhancing its applicability.

목차 Contents

• 표지 ...1
• 제출문 ...2
• 보고서 요약서 ...3
• 요약문 ...4
• SUMMARY ...6
• 총괄연구개발과제의 연구성과 ...9
• 총괄연구결과 세부내용 ...10
• 향후 성과 추진 계획 ...16
• 참여연구원 편성표(총괄) ...19
• CONTENT ...20
• 목차 ...21
• 제 1 장 연구개발과제의 개요...22
• 1. 기술개발의 필요성 ...22
• 2. 예비연구(preliminary study) ...24
• 3. 개발의 목표 및 범위 ...27
• 4. 기술개발의 내용 및 방법 ...28
• 5. 개발 과제의 추진 체계 및 일정ㅇ ...31
• 제 2 장 국내외 기술개발 현황...33
• 1. 국내.외 관련분야에 대한 기술개발현황 ...33
• 제 3 장 연구 개발 수행 내용 및 결과...35
• 1. 총괄연구개발과제의 최종 연구개발 내용 및 결과 ...35
• 2. 총괄연구개발과제의 연구결과 고찰 및 결론 ...43
• 제 4 장 목표달성도 및 관련분야에의 기여도...44
• 1. 총괄연구개발과제의 목표달성도 ...44
• 2. 연구개발결과의 파급효과 ...45
• 제 5 장 연구개발결과의 활용계획...46
• 1. 연구개발결과의 활용계획 및 추가연구의 필요성 ...46
• 2. 사업화(기업화) 목표 달성도 및 계획 ...47
• 제 6 장 연구개발과정에서 수집한 해외과학기술정보...55
• 제 7 장 참고문헌...55
• 제 8 장 첨부서류...56