• Title/Summary/Keyword: BIOMECHANICAL

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Development of Intelligent Robot for Anastomosis of Intestine (대장 소장 원형문합수술을 위한 지능형 로봇개발)

  • Kwun Y.M.;Hong J.
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2005.10a
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    • pp.139-143
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    • 2005

  • As increasing gastrointestinal pathologies, general and thoracic surgeries using circular staplers have been dramatically increased. Because of convenience for surgical procedure, recently, various circular staplers for anastomosis have been used widely. Since the circular staplers conventional have used the displacement control method, however, the anastomosis could have various biomechanical conditions. To do that, biomechanical system of gastrointestinal soft tissue should be examined to control the anastomotic condition. In this study, a new intelligent robot used in circular anastomosis. The intelligent robot driven by a stepper motor and controlled by a digital signal processor.

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A Study ef Biomechanical Response in Human Body during Whole-Body Vibration through Musculoskeletal Model Development (전신 진동운동기 사용시 인체에 대한 생체역학적 특성 분석을 위한 가상 골격계 모델의 개발 및 검증)

  • Choi, Hyun-Ho;Lim, Do-Hyung;Hwang, Seon-Hong;Kim, Young-Ho;Kim, Han-Sung
    • Journal of the Korean Society for Precision Engineering
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    • v.25 no.5
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    • pp.155-163
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    • 2008

  • This study investigated biomechanical response through the 3-dimensional virtual skeletal model developed and validated. Ten male subjects in standing posture were exposed to whole body vibrations and measured acceleration on anatomical of interest (head, $7^{th}$ cervical, $10^{th}$ thoracic, $4^{th}$ lumbar, knee joint and bottom of the vibrator). Three dimensional virtual skeletal model and vibration machine were created by using BRG LifeMOD and MSC.ADAMS. The results of forward dynamic analysis were compared with results of experiment. The results showed that the accuracy of developed model was $73.2{\pm}19.2%$ for all conditions.

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Biomechanical model of pushing and pulling

  • Lee, K.S.
    • Journal of the Ergonomics Society of Korea
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    • v.1 no.2
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    • pp.3-9
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    • 1982

  • This study demonstrates that certain personal and task factors can be modelled to predict slip potential as well as back loadings durings dynamic pushing and pulling tasks. Such tasks are com- mon to many manual material handling jobs in industry and the results of this work will hopefully be of use in improved job design. The objective of this research is to formulate and validate a dynamic biomechanical model of pushing and pulling a cart. For pushing and pulling tasks, the model can : (1) estimate foot forces for given hand forces, and (2) estimate tors muscle and vertabral column loadings. In order to formulate and validate the model, experiments involving pushing and pulling of a cart were performed. These experiments produced data of the following type : (1) dynamic forces on the feet, (2) hand forces required to move the cart, (3) body motions as functions of various cart motion and (4) back muscle actions. The model was validated using three different methods; precision was tested using correlation between predicted and measured results, accuracy using standard error between of predicted and measured results, and intuitive comparison of predicted results using sensitivity analyses.

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