Design and analysis of a micromachined piezoelectric sensor for measuring the viscoelastic properties of tissues in minimally invasive surgery

Narayanan, Nagarajan Babu; Bonakdar, Ali; Dargahi, Javad; Packirisamy, M.; Rama, Bhat

doi:10.1088/0964-1726/15/6/021

Cited by 31 publications

(16 citation statements)

References 31 publications

(30 reference statements)

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“…The magnitude and position of the applied force were obtained by utilizing triangulation approach combined with membrane stress. Narayanan et al 6 presented the design, analysis, and fabrication of a micro machined piezoelectric endoscopic tactile sensor to determine the properties of tissues in minimally invasive surgery. Rosen et al 7 developed a computerized force feedback endoscopic surgical grasper (FREG) with computer control and a haptic user interface in order to regain the tactile and kinesthetic information that is lost.…”

Section: Introductionmentioning

confidence: 99%

Sensing the material by minimally invasive surgery grasper

Azizi

Hortamani

Zabihollah³

2018

IRATJ

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Minimally Invasive Surgery (MIS) is a modern surgical technique. In MIS the surgeon should have more experienced compared to open surgery to perform a surgery by long instruments separation from the operation room. So, the surgeon has not any sense of grasping the organ as normally has in regular surgery in which the surgeon has a complete sense of touch. Thus, a less expert surgeon who wishes to perform MIS should be trained and perform open surgery for a couple of years before he/she can involve in a surgery operation. These limitations motivate researchers in biomedical engineering to explore the new smart system and design new surgical grasper. In this project we design and model a smart grasper which can sense and recognition the grasped material respect to the generated voltage, also finding the magnitude of the allowable applied force by the surgeon which does not hit the organs is possible.

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Section: Introductionmentioning

confidence: 99%

Sensing the material by minimally invasive surgery grasper

Azizi

Hortamani

Zabihollah³

2018

IRATJ

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“…reactive ion etching), or laser micromachining (e.g. CO 2 , Femtosecond) have been the most common approaches (Narayanan et al 2006;Bormashenko et al 2004;). However, these techniques tend to be costly, have low throughput, and require highly specialized equipments/facilities, which limits their widespread adoption.…”

Section: Introductionmentioning

confidence: 99%

Versatile methods for the fabrication of polyvinylidene fluoride microstructures

Gallego‐Perez

Ferrell

Higuita‐Castro

et al. 2010

Biomed Microdevices

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Polyvinylidene fluoride (PVDF) microstructures are of interest for a number of BioMEMS applications both for their piezoelectric and biocompatible properties. In this work, simple soft lithography-based techniques were developed to fabricate PVDF microstructures with diverse geometries, including microarrays of pillars, lines, and wells. Four different microstructure configurations were created: freestanding, stamped discontinuous, stamped continuous and imprinted patterns. Features with lateral dimensions down to 1 μm were consistently reproduced on 2.5 cm diameter areas. Atomic force microscopy (AFM) measurements of poled PVDF microstructures confirmed a marked inverse piezoelectric behavior. The techniques presented here have a number of advantages over previously demonstrated PVDF micropatterning approaches.

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“…Finite element methods were applied in parallel development works [Tanimoto et al 1998;Najarian et al 2006], but none of the proposed designs had the ability to measure the position of the applied forces besides finding grasping forces. Narayanan et al [2006] presented a tactile sensor for MIS operations, but the sensor is active only on the teeth regions; the other regions are inactive and unable to sense the properties of the contacting object. One of our developed sensors was presented in [Qasaimeh et al 2007].…”

Section: Introductionmentioning

confidence: 99%

An endoscopic grasper with corrugated plate-shaped tactile sensors

Qasaimeh

Ramezanifard

Dargahi

2009

JOMMS

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One of the major weaknesses in current endoscopic surgery is the lack of tactile feedback. This paper reports on the design, finite element modeling, and experimental testing of a corrugated tactile sensor. The sensor, a miniaturized and modified form of our previously developed tactile sensor, consists of a 75 µm plate-shaped silicon layer and a 25 µm polyvinylidene fluoride (PVDF) film, patterned on both sides using photolithographic techniques to form three independent sensing elements. The sensor is 15 mm long, 7.5 mm wide, and approximately 3 mm thick, which could make it versatile enough for integration with current endoscopic and medical robotics manipulators. The silicon layer is micromachined in such a way that a U-channel is formed. When a force is applied on the tactile sensor, output voltages from the patterned PVDF-sensing elements are combined to obtain tactile information. Results show that the sensor exhibits high sensitivity and can measure small dynamic loads, comparable to a human pulse, as well as large grasping forces. In addition to measuring the magnitude and position of the applied load, the sensor can determine the modulus of elasticity of the grasped object.

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Design and analysis of a micromachined piezoelectric sensor for measuring the viscoelastic properties of tissues in minimally invasive surgery

Cited by 31 publications

References 31 publications

Sensing the material by minimally invasive surgery grasper

Sensing the material by minimally invasive surgery grasper

Versatile methods for the fabrication of polyvinylidene fluoride microstructures

An endoscopic grasper with corrugated plate-shaped tactile sensors

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