A Telemetric Pressure Sensor System for Biomedical Applications

Ginggen, A.; Tardy, Yves; Crivelli, R.; Bork, Toralf; Renaud, Philippe

doi:10.1109/tbme.2007.913908

Cited by 44 publications

(17 citation statements)

References 16 publications

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“…The catheterless pressure measurement is generally of great interest for many medical applications such as intracranial pressure measurement [3] or real-time blood pressure measurement [4]. Some devices have been designed especially for the intravesical pressure measurement [5][6][7][8].…”

Section: Catheterless Pressure Measurementmentioning

confidence: 99%

A new catheterless urodynamics measurement method by using an intravesical capsule

Hamacher¹,

Tenholte²,

Schumacher³

et al. 2012

Biomedical Engineering / Biomedizinische Technik

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Urodynamics is considered as a standard diagnostic test for urinary incontinence using catheter tip sensors to measure the bladder pressure. Standard urodynamic measurement takes about 30 minutes, thus it is often not possible to monitor pathological change of pressure during this short period of time. In addition, different psychosocial factors could affect the result of standard urodynamics. In this paper we describe a new system for catheterless urodynamic measurement. The system consists of an implantable intravesical capsule that measures the pressure over a period of up to 72 hours. The system needs no components outside of the human body, so an outpatient treatment is possible, which allows measurements under conditions of the patient's daily routine.

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Section: Catheterless Pressure Measurementmentioning

confidence: 99%

A new catheterless urodynamics measurement method by using an intravesical capsule

Hamacher¹,

Tenholte²,

Schumacher³

et al. 2012

Biomedical Engineering / Biomedizinische Technik

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show abstract

“…Acquilina et al [56] and Ginggen et al [57] propose implanted sensors to monitor intracranial pressure. It could be argued that the consequences of high intracranial pressure, versus intraocular pressure for example, are more critical and justify continuous monitoring.…”

Section: B Other Pressure Measurementsmentioning

confidence: 99%

Recent Advances in Translational Work on Implantable Sensors

Black

2011

IEEE Sensors J.

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This review evaluates example technologies from the point-of-view of likely translation into human use, including regulatory clearance, insertion into common medical practice and reimbursability. The intent is to highlight recent innovations in implantable sensors with a focus on the translational process itself in a holistic fashion. As well as looking at success stories, this review will also examine several seemingly promising technologies that have failed for reasons having nothing to do with the operational aspects of the sensors and systems involved. Innovation must be viewed as a multifaceted process, all segments of which must be fully addressed to achieve success. No party to the process can work in isolation and expect to achieve the end goal of providing new advances to patients. This review will have succeeded if it provides the reader with a better appreciation of the complex environment in which implantable sensor discoveries that seek to be translated into human medicine must navigate.Index Terms-Implantable sensors, sensor systems, in vivo medical devices.

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“…In the automotive industry, for example, a typical passenger car has pressure sensors in the powertrain, brake and airbag systems, in tire pressure monitoring, and increasingly in safety and ergonomic systems (Flatscher et al 2010;Markle et al 2004;Pavlin and Novak 2008). In the biomedical industry, pressure sensors find application in invasive and noninvasive monitoring of blood intracranial and epidural pressure as well as in dialysis and other external control systems (Ginggen et al 2008;Kanellos et al 2010;Wahab et al 2009). Across other industries, pressure sensors are ubiquitous in testing and control.…”

Section: Introductionmentioning

confidence: 99%

Design, fabrication, and testing of VDP MEMS pressure sensors

2011

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In this paper, a four-terminal piezoresistive sensor commonly known as a van der Pauw (VDP) structure is presented for its application to MEMS pressure sensing. In a recent study, our team has determined the relation between the biaxial stress state and the piezoresistive response of a VDP structure by combining the VDP resistance equations with the equations governing silicon piezoresistivity and has proposed a new piezoresistive pressure sensor. It was observed that the sensitivity of the VDP sensor is over three times higher than the conventional filament type Wheatstone bridge resistor. To check our theoretical findings, we fabricated several (100) silicon diaphragms with both the VDP sensors and filament resistor sensors on the same wafer so both the sensor elements have same doping concentration. Several diaphragms had VDP sensors of different sizes and orientations to find out their geometric effects on pressure sensitivity. The diaphragms were subjected to known pressures, and the pressure sensitivities of both types of sensors were measured using an in-house built calibration setup. It was found that the VDP devices had a linear response to pressure as expected, and were more sensitive than the resistor sensors. Also, the VDP sensors provided a number of additional advantages, such as its size independent sensitivity and simple fabrication steps due to its simple geometry.

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A Telemetric Pressure Sensor System for Biomedical Applications

Cited by 44 publications

References 16 publications

A new catheterless urodynamics measurement method by using an intravesical capsule

A new catheterless urodynamics measurement method by using an intravesical capsule

Recent Advances in Translational Work on Implantable Sensors

Design, fabrication, and testing of VDP MEMS pressure sensors

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