Passive silicon transensor intended for biomedical, remote pressure monitoring

Bäcklund, Ylva; Rosengren, Lars; Hök, Bertil; Svedbergh, Björn

doi:10.1016/0924-4247(90)85011-r

Cited by 49 publications

(19 citation statements)

References 7 publications

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“…(1) Intraocular pressure monitoring (10,18). Glaucoma is, for example, a serious disease characterized by an increased pressure in the eye that may result in blindness.…”

Section: Applications In the Medical Fieldmentioning

confidence: 99%

Capacitive Microsensors for Biomedical Applications

Tsoukalas¹,

Chatzandroulis²,

Goustouridis³

2006

Encyclopedia of Medical Devices and Instrumentation

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The use of reliable, high performance miniature sensors in the medical field is of growing importance for patient health monitoring. Batch sensor fabrication, as this has been introduced by Integrated Circuit (IC) manufacturing, is an efficient way to produce silicon sensors with desirable characteristics. Since microsensors combine small size with electrical and mechanical principles of operation they constitute together with microactuators what is usually called Microelectromechanical Systems (MEMS). These components are mainly made from silicon and other related materials to explore existing know‐how and infrastructure of silicon technology. All of the above factors have allowed for fast growth of the microsensor field during the last years. This article focuses on physical microsensors used in the medical field that are based on the capacitive approach.

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“…(1) Intraocular pressure monitoring (10,18). Glaucoma is, for example, a serious disease characterized by an increased pressure in the eye that may result in blindness.…”

Section: Applications In the Medical Fieldmentioning

confidence: 99%

Capacitive Microsensors for Biomedical Applications

Tsoukalas¹,

Chatzandroulis²,

Goustouridis³

2006

Encyclopedia of Medical Devices and Instrumentation

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“…Die Aufldsung betrug 0,1 mmHg. Auch Backlund et al [1] versuchten 1990 eine Druckmessung Ober elektromagnetische Induktion, das System konnte sich jedoch wegen technischer Schwierigkeiten nicht durchsetzen.…”

Section: Diskussionunclassified

Kontinuierliche intraokulare Tonometrie mit telemetrischer Übertragung

Draeger

Hille

2000

Spektrum Augeheilkd

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“…Currently, major challenges of implantable microsystems for chronic longterm use come from reliability, packaging, biocompatibility, absence of a mass market driver and long development time (Mokwa 2007;Receveur et al 2007;Ainslie and Desai 2008). Short or long-term implantable pressure sensors have been used to measure intra-ocular pressure (IOP) (Backlund et al 1990;Mokwa and Schnakenberg 1998;Puers et al 2000), intro-cranial pressure (ICP) (Cosman et al 1979;Flick and Orglmeister 2000), cardio vascular pressures (Puers et al 1990;Xiao et al 1997;Kalvesten et al 1998;Schnakenberg et al 2004;Allen 2005;Ohki et al 2007), and urodynamic pressure, etc. The goal of this study was to develop an implantable pressure sensor on LVAD inlet to measure LVP using Micro-Electro-Mechanical Systems (MEMS) technology.…”

Section: Introductionmentioning

confidence: 98%

An implantable Fabry-Pérot pressure sensor fabricated on left ventricular assist device for heart failure

Zhou

Yang

Liu

et al. 2011

Biomed Microdevices

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Continuous flow left ventricular assist devices (LVADs) are commonly used as bridge-to-transplantation or destination therapy for heart failure patients. However, non-optimal pumping speeds can reduce the efficacy of circulatory support or cause dangerous ventricular arrhythmias. Optimal flow control for continuous flow LVADs has not been defined and calls for an implantable pressure sensor integrated with the LVAD for real-time feedback control of pump speed based on ventricular pressure. A MEMS pressure sensor prototype is designed, fabricated and seamlessly integrated with LVAD to enable real-time control, optimize its performance and reduce its risks. The pressure sensing mechanism is based on Fabry-Pérot interferometer principle. A biocompatible parylene diaphragm with a silicon mirror at the center is fabricated directly on the inlet shell of the LVAD to sense pressure changes. The sensitivity, range and response time of the pressure sensor are measured and validated to meet the requirements of LVAD pressure sensing.

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Passive silicon transensor intended for biomedical, remote pressure monitoring

Cited by 49 publications

References 7 publications

Capacitive Microsensors for Biomedical Applications

Capacitive Microsensors for Biomedical Applications

Kontinuierliche intraokulare Tonometrie mit telemetrischer Übertragung

An implantable Fabry-Pérot pressure sensor fabricated on left ventricular assist device for heart failure

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