An Implantable Microsystem for Tonometric Blood Pressure Measurement
dc.contributor.author | Ziaie, Babak | en_US |
dc.contributor.author | Najafi, Khalil | en_US |
dc.date.accessioned | 2006-09-11T14:50:11Z | |
dc.date.available | 2006-09-11T14:50:11Z | |
dc.date.issued | 2001-12 | en_US |
dc.identifier.citation | Ziaie, Babak; Najafi, Khalil; (2001). "An Implantable Microsystem for Tonometric Blood Pressure Measurement." Biomedical Microdevices 3(4): 285-292. <http://hdl.handle.net/2027.42/44464> | en_US |
dc.identifier.issn | 1387-2176 | en_US |
dc.identifier.issn | 1572-8781 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/44464 | |
dc.description.abstract | This paper presents an implantable microsystem for tonometric blood pressure measurement in small animals. The microsystem consists of four major components: (1) a titanium base for supporting a pressure sensor and an interface chip, (2) a micromachined capacitive pressure sensor array, (3) a switched-capacitor interface chip, and (4) a titanium cap. A new micromachining fabrication process has been developed to create capacitive pressure transducers with a flat surface necessary for tonometric pressure measurement. An array of three capacitive sensors is used to increase signal output and improve stability. A custom-designed switched-capacitor CMOS interface circuit is used to measure changes in capacitance. In vitro calibration tests have been performed on the complete cuff using a silastic tube to mimic a pliable blood vessel. A sensitivity of 2 mV/mmHg @ 100 mmHg and a resolution of 0.5 mmHg (based on 1 mV RMS interface chip noise floor) has been obtained. The dimensions of the cuff system 10(L)×6.5(W)×3(H) mm 3 . | en_US |
dc.format.extent | 1013232 bytes | |
dc.format.extent | 3115 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.language.iso | en_US | |
dc.publisher | Kluwer Academic Publishers; Springer Science+Business Media | en_US |
dc.subject.other | Engineering | en_US |
dc.subject.other | Characterization and Evaluation Materials | en_US |
dc.subject.other | Pharmacy | en_US |
dc.subject.other | Biophysics/Biomedical Physics | en_US |
dc.subject.other | Electronic and Computer Engineering | en_US |
dc.subject.other | Circuits and Systems | en_US |
dc.subject.other | Biomedical Engineering | en_US |
dc.subject.other | Implantable Microsystems | en_US |
dc.subject.other | Tonometry | en_US |
dc.subject.other | BioMEMS | en_US |
dc.subject.other | Biomedical Microdevices | en_US |
dc.subject.other | Blood Pressure Measurement | en_US |
dc.subject.other | Biomedical Transducers | en_US |
dc.title | An Implantable Microsystem for Tonometric Blood Pressure Measurement | en_US |
dc.type | Article | en_US |
dc.subject.hlbsecondlevel | Biomedical Engineering | en_US |
dc.subject.hlbsecondlevel | Biological Chemistry | en_US |
dc.subject.hlbtoplevel | Engineering | en_US |
dc.subject.hlbtoplevel | Health Sciences | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Department of Electrical Engineering and Computer Science Center for Integrated Microsystems, University of Michigan, Ann Arbor, MI | en_US |
dc.contributor.affiliationother | Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, MN | en_US |
dc.contributor.affiliationumcampus | Ann Arbor | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/44464/1/10544_2004_Article_381080.pdf | en_US |
dc.identifier.doi | http://dx.doi.org/10.1023/A:1012452613720 | en_US |
dc.identifier.source | Biomedical Microdevices | en_US |
dc.owningcollname | Interdisciplinary and Peer-Reviewed |
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