Development of an In Vitro Tracking System with Poly (vinyl alcohol) Hydrogel for Catheter Motion

Yu, ChangHo; Kosukegawa, Hiroyuki; Mamada, Keisuke; Kuroki, Kanju; Takashima, Kazuto; Yoshinaka, Kiyoshi; Ohta, Makoto

doi:10.1299/jbse.5.11

Cited by 13 publications

(6 citation statements)

References 11 publications

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“…It is apparent from previous research into biomechanical modelling and the development of synthetic blood vessels for clinicians' training devices that PVA hydrogel can be used to simulate the interior of blood vessels [32][33][34]. In addition to having similar mechanical properties, PVA hydrogels have a high water content resulting in a low surface friction resistance and low interfacial energy with water or biological fluids [35], thus these materials canmimic human soft tissues.…”

Section: Blood Vessel Analogue (Pva Hydrogel)mentioning

confidence: 99%

Friction behaviour of hydrophilic lubricious coatings for medical device applications

Niemczyk

Fray

Franklin

2015

Tribology International

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The friction behaviour of new chitosan derivative coatings obtained by chemical modification of chitosan with fatty acids (linoleic and dilinoleic acid) has been investigated in order to explore their potential as endovascular catheter coatings and to benchmark them against commercially available coatings used in endovascular catheter applications. An in vitro tribological system was developed that was intended to represent to a limited extent the in vivo tribological conditions of a typical endovascular catheterization procedure. Continuous reciprocating sliding tests were carried out with uncoated and coated polymer specimens. The results showed that all of the coatings tested decreased the coefficient of friction compared to the uncoated polymer. Compared to a neat chitosan coating, the chitosan derivative coatings showed a clear reduction in the coefficient of friction to levels similar to those of the commercially-available coatings. A comparison between the friction results and contact angle measurements carried out on the coatings indicated that a range of contact angle values exists for which the friction coefficient is at a minimum. The reason for this is unclear and further studies are required in order to confirm and investigate the trend, especially within the context of hydrophilic lubricious coating development.

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Section: Blood Vessel Analogue (Pva Hydrogel)mentioning

confidence: 99%

Friction behaviour of hydrophilic lubricious coatings for medical device applications

Niemczyk

Fray

Franklin

2015

Tribology International

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“…Different materials can be used to fabricate the phantom model. For example, to test a guidewire or a catheter behavior, phantom’s materials used in the literature include polyvinyl alcohol (PVA), 102 PVA-hydrogel (PVA-H), 38 , 80 , 103 PVA-H and silicone (high transparency), 104 and PVA-cryogel 105 …”

Section: Resultsmentioning

confidence: 99%

Navigation of guidewires and catheters in the body during intervention procedures: a review of computer-based models

et al. 2018

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Guidewires and catheters are used during minimally invasive interventional procedures to traverse in vascular system and access the desired position. Computer models are increasingly being used to predict the behavior of these instruments. This information can be used to choose the right instrument for each case and increase the success rate of the procedure. Moreover, a designer can test the performance of instruments before the manufacturing phase. A precise model of the instrument is also useful for a training simulator. Therefore, to identify the strengths and weaknesses of different approaches used to model guidewires and catheters, a literature review of the existing techniques has been performed. The literature search was carried out in Google Scholar and Web of Science and limited to English for the period 1960 to 2017. For a computer model to be used in practice, it should be sufficiently realistic and, for some applications, real time. Therefore, we compared different modeling techniques with regard to these requirements, and the purposes of these models are reviewed. Important factors that influence the interaction between the instruments and the vascular wall are discussed. Finally, different ways used to evaluate and validate the models are described. We classified the developed models based on their formulation into finite-element method (FEM), mass-spring model (MSM), and rigid multibody links. Despite its numerical stability, FEM requires a very high computational effort. On the other hand, MSM is faster but there is a risk of numerical instability. The rigid multibody links method has a simple structure and is easy to implement. However, as the length of the instrument is increased, the model becomes slower. For the level of realism of the simulation, friction and collision were incorporated as the most influential forces applied to the instrument during the propagation within a vascular system. To evaluate the accuracy, most of the studies compared the simulation results with the outcome of physical experiments on a variety of phantom models, and only a limited number of studies have done face validity. Although a subset of the validated models is considered to be sufficiently accurate for the specific task for which they were developed and, therefore, are already being used in practice, these models are still under an ongoing development for improvement. Realism and computation time are two important requirements in catheter and guidewire modeling; however, the reviewed studies made a trade-off depending on the purpose of their model. Moreover, due to the complexity of the interaction with the vascular system, some assumptions have been made regarding the properties of both instruments and vascular system. Some validation studies have been reported but without a consistent experimental methodology.

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“…Experiments using more complex vascular models made of silicone rubber [29,[35][36][37][38][39], acrylic [40], poly(vinyl alcohol) hydrogel [25][26][27][30][31][32][33], and elastomer-hydrogel skin multilayers [9,28] that mimic living tissue have also been conducted. 3D printers are widely used to prepare biomodels and can easily fabricate mold copies of the vascular tree, which is subsequently embedded in a liquid resin that solidifies into a solid biomodel.…”

Section: Complex Shapesmentioning

confidence: 99%

“…Biomodels that mimic various types of vasculature [9,[25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40] can be used to test new endovascular medical devices and teach techniques to medical personnel; they also allow the practice and planning of procedures before treatment without exposing patients to X-rays. Moreover, biomodels are more economical and ethical compared to human cadavers and animals.…”

Section: Introductionmentioning

confidence: 99%

Methods for Evaluating Friction between Intravascular Device and Vascular Biomodel

Takashima,

Ohta,

Yoshinaka

et al. 2024

Tribology Online

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In recent years, endovascular treatments, in which a treatment device such as a catheter is inserted into a blood vessel to directly approach a lesion, have become increasingly popular worldwide. For safer treatment and further optimization of medical devices, a deeper understanding of the vascular biotribology of the medical devices, biomodels, and blood vessels and an appropriate evaluation method are required. This review paper presents the current state of research on the evaluation of the friction between an intravascular device and a vascular biomodel. We review the experimental conditions, including the sample shape, sliding speed, contact pressure, lubricant, materials, and temperature. Standardized methods should be established for evaluating the friction between an intravascular device and a vascular biomodel.

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Development of an In Vitro Tracking System with Poly (vinyl alcohol) Hydrogel for Catheter Motion

Cited by 13 publications

References 11 publications

Friction behaviour of hydrophilic lubricious coatings for medical device applications

Friction behaviour of hydrophilic lubricious coatings for medical device applications

Navigation of guidewires and catheters in the body during intervention procedures: a review of computer-based models

Methods for Evaluating Friction between Intravascular Device and Vascular Biomodel

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