A Small-Area and Low-Power SoC for Less-Invasive Pressure Sensing Capsules in Ambulatory Urodynamic Monitoring

Hirofumi IWATO; Keishi SAKANUSHI; Yoshinori TAKEUCHI; Masaharu IMAI

doi:10.1587/transele.E95.C.487

A Small-Area and Low-Power SoC for Less-Invasive Pressure Sensing Capsules in Ambulatory Urodynamic Monitoring

Hirofumi IWATO, Keishi SAKANUSHI, Yoshinori TAKEUCHI, Masaharu IMAI

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To measure the detrusor pressure for diagnosing lower urinary tract symptoms, we designed a small-area and low-power System on a Chip (SoC). The SoC should be small and low power because it is encapsulated in tiny air-tight capsules which are simultaneously inserted in the urinary bladder and rectum for several days. Since the SoC is also required to be programmable, we designed an Application Specific Instruction set Processor (ASIP) for pressure measurement and wireless communication, and implemented almost required functions on the ASIP. The SoC was fabricated using a 0.18 µm CMOS mixed-signal process and the chip size is 2.5 2.5 mm². Evaluation results show that the power consumption of the SoC is 93.5 µW, and that it can operate the capsule for seven days with a tiny battery.

Publication: IEICE TRANSACTIONS on Electronics Vol.E95-C No.4 pp.487-494

Publication Date: 2012/04/01

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Online ISSN: 1745-1353

DOI: 10.1587/transele.E95.C.487

Type of Manuscript: Special Section PAPER (Special Section on Solid-State Circuit Design – Architecture, Circuit, Device and Design Methodology)

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Hirofumi IWATO, Keishi SAKANUSHI, Yoshinori TAKEUCHI, Masaharu IMAI, "A Small-Area and Low-Power SoC for Less-Invasive Pressure Sensing Capsules in Ambulatory Urodynamic Monitoring" in IEICE TRANSACTIONS on Electronics, vol. E95-C, no. 4, pp. 487-494, April 2012, doi: 10.1587/transele.E95.C.487.
Abstract: To measure the detrusor pressure for diagnosing lower urinary tract symptoms, we designed a small-area and low-power System on a Chip (SoC). The SoC should be small and low power because it is encapsulated in tiny air-tight capsules which are simultaneously inserted in the urinary bladder and rectum for several days. Since the SoC is also required to be programmable, we designed an Application Specific Instruction set Processor (ASIP) for pressure measurement and wireless communication, and implemented almost required functions on the ASIP. The SoC was fabricated using a 0.18 µm CMOS mixed-signal process and the chip size is 2.5 2.5 mm². Evaluation results show that the power consumption of the SoC is 93.5 µW, and that it can operate the capsule for seven days with a tiny battery.
URL: https://globals.ieice.org/en_transactions/electronics/10.1587/transele.E95.C.487/_p

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@ARTICLE{e95-c_4_487,
author={Hirofumi IWATO, Keishi SAKANUSHI, Yoshinori TAKEUCHI, Masaharu IMAI, },
journal={IEICE TRANSACTIONS on Electronics},
title={A Small-Area and Low-Power SoC for Less-Invasive Pressure Sensing Capsules in Ambulatory Urodynamic Monitoring},
year={2012},
volume={E95-C},
number={4},
pages={487-494},
abstract={To measure the detrusor pressure for diagnosing lower urinary tract symptoms, we designed a small-area and low-power System on a Chip (SoC). The SoC should be small and low power because it is encapsulated in tiny air-tight capsules which are simultaneously inserted in the urinary bladder and rectum for several days. Since the SoC is also required to be programmable, we designed an Application Specific Instruction set Processor (ASIP) for pressure measurement and wireless communication, and implemented almost required functions on the ASIP. The SoC was fabricated using a 0.18 µm CMOS mixed-signal process and the chip size is 2.5 2.5 mm². Evaluation results show that the power consumption of the SoC is 93.5 µW, and that it can operate the capsule for seven days with a tiny battery.},
keywords={},
doi={10.1587/transele.E95.C.487},
ISSN={1745-1353},
month={April},}

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TY - JOUR
TI - A Small-Area and Low-Power SoC for Less-Invasive Pressure Sensing Capsules in Ambulatory Urodynamic Monitoring
T2 - IEICE TRANSACTIONS on Electronics
SP - 487
EP - 494
AU - Hirofumi IWATO
AU - Keishi SAKANUSHI
AU - Yoshinori TAKEUCHI
AU - Masaharu IMAI
PY - 2012
DO - 10.1587/transele.E95.C.487
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E95-C
IS - 4
JA - IEICE TRANSACTIONS on Electronics
Y1 - April 2012
AB - To measure the detrusor pressure for diagnosing lower urinary tract symptoms, we designed a small-area and low-power System on a Chip (SoC). The SoC should be small and low power because it is encapsulated in tiny air-tight capsules which are simultaneously inserted in the urinary bladder and rectum for several days. Since the SoC is also required to be programmable, we designed an Application Specific Instruction set Processor (ASIP) for pressure measurement and wireless communication, and implemented almost required functions on the ASIP. The SoC was fabricated using a 0.18 µm CMOS mixed-signal process and the chip size is 2.5 2.5 mm². Evaluation results show that the power consumption of the SoC is 93.5 µW, and that it can operate the capsule for seven days with a tiny battery.
ER -