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대동물 실험을 통한 공압식 박동형 심실보조장치의 박출량 추정 시스템에 대한 유효성 검증
강성민(S.M.kang),김동선(D.S.Kim),김의찬(E.C.Kin),최성욱(S.W.Choi) 대한기계학회 2015 대한기계학회 춘추학술대회 Vol.2015 No.11
It is necessary to implant a separate device through the skin to measure the flow rate that can indicate the operation status of a ventricular assist device. This has some limitations: high risk of infection and the need to install equipment that can communicate with the implanted device. So this study aims to make in-vivo assessment of blood flow rate estimation using pre-development cardiac output estimation system. The blood flow rate measured in-vivo by an ultrasonic blood flow meter and that based on the inner pressure variation were proved to be similar to each other. Therefore, it is expected that the blood flow rate estimation technique in this study will be able to estimate the flow rate without separate measurement equipment after the implantation of a ventricular assist device.
강성민(S. M. Kang),최성욱(S. W. Choe) 대한기계학회 2010 대한기계학회 춘추학술대회 Vol.2010 No.11
Drug Drug controller is maintain the injected drug rate in body, and it is device for the controls of drug injection accordinng to the condition of patient. More conventional drug controllers were developed, but the most devices were limited to control of drug rate because of control in person patient`s. In the study, Drug controller is developed by thermopneumatic using PDMS. In order to verify the injection rate of drug controller is measured in the pressure change according to the injection rate by in-vitro, and the accuracy is compared with the conventional drug controller.
강성민(S. M. Kang),김종세(J. S. Kim),최성욱(S. W. Choi) 대한기계학회 2009 대한기계학회 춘추학술대회 Vol.2009 No.11
In pulsatile artificial heart, the abrupt change in blood pressure and flow cause the blood cell damage. So, to mitigate the abrupt blood pressure and flow change, it is vary important that the actuator should be controlled to reduce blood flow output change as well as the design of an actuator. We controlled the moving position of the actuator and it is enable to have various locus and different from the previous moving velocity control scheme. In in-vitro experiments, we compared the effect on the blood pressure and flow according to each position locus.
탄성체-삼투압 약물주입펌프 성능 최적화를 위한 시뮬레이션
김동선(D. S Kim),강성민(S. M. Kang),김의찬(E. C. Kim),최성욱(S. W. Choi) 대한기계학회 2015 대한기계학회 춘추학술대회 Vol.2015 No.11
Drug infusion pump is classified as electronic and mechanical. Electronic drug infusion pump precision control is possible by using a motor, but it is not easy to carry and it is expensive. The mechanical drug infusion pump can be portable and operations to use the easy. However, mechanical infusion pump flow rate is not constant. Therefore, there was a lot of attempts to solve the problems of the Mechanical infusion pump, there is a combination of elastomeric and osmotic pressure of the drug infusion. but this of elastomeric and osmotic infusion pumps is important to elasticity and concentration of difference because of injecting by interaction between elastic and osmotic pressure. Therefore, in this paper indicates interaction between the elasticity and concentration differences. Performance of the infusion pump is optimized by simulation programs.