Abstract
We have developed a micro cerebrospinal fluid (CSF) shunt system with a MEMS-based micro CSF shunt valve. This valve consists of flow nozzles with membrane connected to anchor by bridges. The up-down movement of the membrane turns the CSF on and off, and the thickness and shape of bridges and membrane determine the valve characteristics, such as opening pressure. The membrane, anchor and bridges were made of micro patterned Parylene™ film. To make the membrane and bridge not be torn out in the CSF flow, we added a cover layer. The total dimension of the assembled CSF shunt valve is 2.5 × 2.5 mm2 , and 0.8 mm in height. The burst pressure and flow rate of the valve were precisely controled by carefully selecting the design parameters, such as the thickness of membrane and bridge, and the width and number of the bridge. The developed CSF shunt system showed good performances in the evaluation test for commercialized CSF shunt systems.
| Original language | English |
|---|---|
| Pages (from-to) | 311-321 |
| Number of pages | 11 |
| Journal | Biomedical Microdevices |
| Volume | 5 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2003 Dec 1 |
| Externally published | Yes |
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Keywords
- Cerebrospinal fluid
- MEMS
- Parylene
- Shunt system
ASJC Scopus subject areas
- Genetics
- Medicine (miscellaneous)
- Neuroscience(all)
Cite this
Development of MEMS-based cerebrospinal fluid shunt system. / Chung, Seok; Kim, Jung Kyung; Wang, Kyu Chang; Han, Dong Chul; Chang, Jun Keun.
In: Biomedical Microdevices, Vol. 5, No. 4, 01.12.2003, p. 311-321.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Development of MEMS-based cerebrospinal fluid shunt system
AU - Chung, Seok
AU - Kim, Jung Kyung
AU - Wang, Kyu Chang
AU - Han, Dong Chul
AU - Chang, Jun Keun
PY - 2003/12/1
Y1 - 2003/12/1
N2 - We have developed a micro cerebrospinal fluid (CSF) shunt system with a MEMS-based micro CSF shunt valve. This valve consists of flow nozzles with membrane connected to anchor by bridges. The up-down movement of the membrane turns the CSF on and off, and the thickness and shape of bridges and membrane determine the valve characteristics, such as opening pressure. The membrane, anchor and bridges were made of micro patterned Parylene™ film. To make the membrane and bridge not be torn out in the CSF flow, we added a cover layer. The total dimension of the assembled CSF shunt valve is 2.5 × 2.5 mm2 , and 0.8 mm in height. The burst pressure and flow rate of the valve were precisely controled by carefully selecting the design parameters, such as the thickness of membrane and bridge, and the width and number of the bridge. The developed CSF shunt system showed good performances in the evaluation test for commercialized CSF shunt systems.
AB - We have developed a micro cerebrospinal fluid (CSF) shunt system with a MEMS-based micro CSF shunt valve. This valve consists of flow nozzles with membrane connected to anchor by bridges. The up-down movement of the membrane turns the CSF on and off, and the thickness and shape of bridges and membrane determine the valve characteristics, such as opening pressure. The membrane, anchor and bridges were made of micro patterned Parylene™ film. To make the membrane and bridge not be torn out in the CSF flow, we added a cover layer. The total dimension of the assembled CSF shunt valve is 2.5 × 2.5 mm2 , and 0.8 mm in height. The burst pressure and flow rate of the valve were precisely controled by carefully selecting the design parameters, such as the thickness of membrane and bridge, and the width and number of the bridge. The developed CSF shunt system showed good performances in the evaluation test for commercialized CSF shunt systems.
KW - Cerebrospinal fluid
KW - MEMS
KW - Parylene
KW - Shunt system
UR - http://www.scopus.com/inward/record.url?scp=0346147004&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0346147004&partnerID=8YFLogxK
U2 - 10.1023/A:1027309830365
DO - 10.1023/A:1027309830365
M3 - Article
AN - SCOPUS:0346147004
VL - 5
SP - 311
EP - 321
JO - Biomedical Microdevices
JF - Biomedical Microdevices
SN - 1387-2176
IS - 4
ER -