A Novel Flexible Thermoelectric Sensor for Intravascular Flow Assessment

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

doi:10.1109/jsen.2013.2252461

Cited by 9 publications

(8 citation statements)

References 18 publications

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“…A flexible thermal flow sensor for integration at the tip of a medical guidewire, fabricated with the F2R technology, was electrically characterized and preliminary flow measurements have been reported. A more extensive experimental study of the presented sensor under coronary flow conditions can be found in this issue [19].…”

Section: Discussionmentioning

confidence: 99%

“…The full fabrication process of this device is given in the Section III of this paper. A schematic representation of the flow sensor layout with the position of the heater and the thermopiles can be found in [19] (this issue).…”

Section: A Design and Electrical Characterizationmentioning

confidence: 99%

“…The output signal then enables the distinction between forward and backward flow and is independent of the Seebeck coefficient. Thorough experimental characterization of the sensor under coronary flow conditions is presented in [19].…”

Section: A Design and Electrical Characterizationmentioning

confidence: 99%

“…The last part of the paper introduces a polyimidebased flexible thermal flow sensor for integration at the tip of a medical guidewire. A thorough experimental study of the presented sensor under coronary flow conditions can be found in this issue [19].…”

Section: Introductionmentioning

confidence: 99%

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Flex-to-Rigid (F2R): A Generic Platform for the Fabrication and Assembly of Flexible Sensors for Minimally Invasive Instruments

et al. 2013

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The flex-to-rigid (F2R) platform allows for the fabrication of miniature and flexible sensor assemblies for minimally invasive medical instruments such as catheters and guidewires. Devices fabricated on silicon wafers are transferred onto polyimide and partially rendered flexible by means of a two-step backside silicon deep reactive ion etching. The flexibility allows for the devices to be folded into, or wrapped around the tip of the instruments. The fabrication of the whole assembly is based on standard integrated circuit manufacturing technologies so that it is possible to scale the devices down to the dimension of the smallest guidewires. Several demonstrations are presented to show the versatility of the F2R technology, and a polyimidebased flexible thermal flow sensor for application at the tip of a 360-µm diameter guidewire is introduced.

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Section: Discussionmentioning

confidence: 99%

Section: A Design and Electrical Characterizationmentioning

confidence: 99%

Section: A Design and Electrical Characterizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Flex-to-Rigid (F2R): A Generic Platform for the Fabrication and Assembly of Flexible Sensors for Minimally Invasive Instruments

et al. 2013

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“…For the pressure signals produced by vasoconstriction to be picked up by external devices, it is necessary to exploit highly sensitive sensors or innovative signal acceptance techniques. The common types of sensors available today are capacitive sensors, [149] micromotor pressure sensors, [150] Doppler ultrasonic flow sensors, [151] thermoelectric sensors, [152] and optical sensors. [153] Cuffed sensors and internal sensors are the two major types of sensors used for in vivo blood monitoring.…”

Section: Blood Pressurementioning

confidence: 99%

Implantable Flexible Sensors for Health Monitoring

Yu,

Zhu,

Chen

et al. 2023

Adv Healthcare Materials

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Flexible sensors, as a significant component of flexible electronics, have attracted great interest the realms of human–computer interaction and health monitoring due to their high conformability, adjustable sensitivity, and excellent durability. In comparison to wearable sensor‐based in vitro health monitoring, the use of implantable flexible sensors (IFSs) for in vivo health monitoring offers more accurate and reliable vital sign information due to their ability to adapt and directly integrate with human tissue. IFSs show tremendous promise in the field of health monitoring, with unique advantages such as robust signal reading capabilities, lightweight design, flexibility, and biocompatibility. Herein, a review of IFSs for vital signs monitoring is detailly provided, highlighting the essential conditions for in vivo applications. As the prerequisites of IFSs, the stretchability and wireless self‐powered properties of the sensor are discussed, with a special attention paid to the sensing materials which can maintain prominent biosafety (i.e., biocompatibility, biodegradability, bioresorbability). Furthermore, the applications of IFSs monitoring various parts of the body are described in detail, with a summary in brain monitoring, eye monitoring, and blood monitoring. Finally, the challenges as well as opportunities in the development of next‐generation IFSs are presented.

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