Development of Upgraded Cortical Impact Model(Part I: Mechanics).

Choi, Seok Min; Suk, Jong Sik; Kwon, Jeong Taik; Min, Byung Kook; Kim, Young Baeg; Hwang, Sung Nam; Choi, Duck Young; Kim, Jae Hyun; Lee, Sung Min; Earmme, Yun Yong

Original Article

Journal of Korean Neurosurgical Society 2002;32(1): 29-34.

Seok Min Choi, Jong Sik Suk, Jeong Taik Kwon, Byung Kook Min, Young Baeg Kim, Sung Nam Hwang, Duck Young Choi, Jae Hyun Kim, Sung Min Lee, Yun Yong Earmme

¹Department of Neurosurgery, Chung-Ang University School of Medicine, Seoul, Korea.
²Department of Mechanical Engineering, Korea advanced institute of science and technology(KAIST), Daejeon, Korea.

ABSTRACT

OBJECTIVE
Head trauma model is important and essential to development of new therapeutic modality. We present a upgraded head trauma model for experimental animals.
METHODS
Using pneumatic cylinder, solenoid valve, linear variable differential transformer(LVDT) and load cell, we developed "Chung-Ang University Hospital Model 1.0(CAUH-1)" based on controlled cortical impact model.
RESULTS
Changing pressure, impact velocity could be controlled up to 4m/sec. Using solenoid valve, we could control dwell time precisely. Real time impact force could be measured with load cell.
CONCLUSION
Controlling dwell time, impact velocity, depth of deformation, this model would reproduce variable degrees of head injury. This model is so precise and versatile that it would be useful in diverse animal experimental researches.

Key Words: Upgraded cortical impact model; Impact velocity; Pneumatic cylinder