Thermal flow sensors on flexible substrates for minimally invasive medical instruments

Mimoun, B.; Horst, A. van der; Dekker, R.; Voort, Dennis van der; Rutten, Mcm Marcel; Vosse, Frans van de

doi:10.1109/icsens.2012.6411429

Cited by 18 publications

(9 citation statements)

References 10 publications

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“…25,36 Calorimetric sensors measure the temperature asymmetry caused by the passing fluid using a constant current applied to the heater. 37 They consume less power than HWA sensors, and the two sensors on both sides of the heater allow to determine the flow direction. However, calorimetric sensors have two main limitations: non-linearity and sensitivity.…”

Section: Flow Rate Measurements At the Microscalementioning

confidence: 99%

Flowmetering for microfluidics

2022

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Section: Flow Rate Measurements At the Microscalementioning

confidence: 99%

Flowmetering for microfluidics

2022

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“…Numerous miniaturized flow sensors have been developed for monitoring biomedical signals, such as blood or intraocular pressure, intravascular blood flow, aspirated-and inspired-air flow, and breathing characteristics [52][53][54][55]. In this regard, an implantable catheter flow sensor established by Shikida et al, which was specified to sense breathing parameters of animal models after anchoring in the airway by means of legs [56].…”

Section: Metallic-based Hot-wire/film Mems Thermal Flow Sensorsmentioning

confidence: 99%

Design and applications of MEMS flow sensors: A review

Ejeian

Azadi

Razmjou

et al. 2019

Sensors and Actuators A: Physical

277

125

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“…Another recent work was implementing thermal flow sensor in medical guide wires of 360 µm in diameter [17] [18]. Due to its smaller size, the sensor potentially allows for an easier, more accurate and reliable CFD (computational fluid dynamics) diagnosis [19].…”

Section: Introductionmentioning

confidence: 99%

Three dimensional thermal sensor for intravascular flow monitoring

Tang

Huang

Yang

et al. 2013

2013 Transducers &Amp; Eurosensors XXVII: The 17th International Conference on Solid-State Sensors, Actuators and Microsystems

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A novel design and assembly technology was developed for a three-dimensional (3-D) thermal flow sensor based on convective heat transfer to reduce detection error caused by position variation of a sensor inside the flow of narrow and curved geometries, such as coronary artery. The 3-D sensor has three independent sensing elements equally distributed around the catheter tube. This arrangement introduces three independent information channels, and cross-comparisons were utilized to provide accurate flow measurement. The resistance of the sensing elements was measured at approximately 1-1.2 kΩ with the temperature coefficient of resistance (TCR) at 0.086 %/˚C. Using a constant-current circuit, the three sensing elements were heated to about 10 ˚C above ambient temperature. Flow testing was implemented in a pipe channel at two positions: on the wall or along the center line. When the sensor was in contact with the pipe, output voltage of the sensing element facing the pipe wall changed less than 0.6 mV. Meanwhile, other two sensing elements which were facing the flow field had a maximum output change of 3.3-3.5 mV. Placing the sensors at the center line of the pipe resulted in an almost equal output voltage change for all sensing elements. Therefore, we demonstrated the capability of 3-D thermal flow sensor for detecting the position of the catheter in the flow channel, thereby providing an accurate flow measurement.

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Thermal flow sensors on flexible substrates for minimally invasive medical instruments

Cited by 18 publications

References 10 publications

Flowmetering for microfluidics

Flowmetering for microfluidics

Design and applications of MEMS flow sensors: A review

Three dimensional thermal sensor for intravascular flow monitoring

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