Textile arterial prostheses: Is water permeability equivalent to porosity?

Guidoin, Robert; King, Martin W.; Marceau, Daniel; Cardou, A.; Faye, Dominique De La; Legendre, J. M.; Blais, Pierre

doi:10.1002/jbm.820210111

Cited by 72 publications

(37 citation statements)

References 10 publications

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“…A thin latex tube of diameter larger than those of the grafts was inserted into the specimen before the fluid was passed and the graft pressurized. For determining hydraulic permeability, the procedure of Guidoin et al 31 was used. In this method, the volume of water passing through the wall under a fixed hydrostatic pressure of 120 mmHg was collected for 5 min and expressed as milliliters per minute per square centimeter of water.…”

Section: Manufacturing Mechanical Properties and Structure Of Compomentioning

confidence: 99%

Biomechanics of human common carotid artery and design of novel hybrid textile compliant vascular grafts

Gupta

Kasyanov

1997

J. Biomed. Mater. Res.

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The mechanical properties and structure of a human common carotid artery were studied in order to develop criteria for designing and manufacturing compliant textile vascular grafts. The arterial wall comprised a composite of elastin and collagen fibers with the collagen fibers crimped. This structure led to a unique pressure-circumferential stretch ratio curve, the slope of which increased with an increase in strain. The increase in slope was particularly rapid at a stretch ratio above 1.4 or pressure above 120 mmHg. Based on the knowledge gained, a criteria for the design of biomechanically compliant arterial grafts was developed. An elastomeric prestretched polyurethane monofilament yarn with a low modulus of elasticity and a bulked polyester multifilament yarn with a high modulus of elasticity were combined and used as threads in the manufacture of grafts. Tubular structures of diameters in the range 4-6 mm were made by weaving. Transverse compliance and morphological and permeability properties of these grafts were determined and compared with those of a currently available woven commercial grafts and human carotid arteries. Results indicated that the compliance values of the hybrid grafts were comparable with those of the human carotid artery. Preliminary in vivo studies in dogs showed promising results: a thin, stable neointima developed within 6 months of implantation on the flow surface.

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Section: Manufacturing Mechanical Properties and Structure Of Compomentioning

confidence: 99%

Biomechanics of human common carotid artery and design of novel hybrid textile compliant vascular grafts

Gupta

Kasyanov

1997

J. Biomed. Mater. Res.

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“…16 Test specimens measuring $8 Â 8 cm were clamped into an orifice with an internal diameter of 22 mm, such that the surface area of the test sample was 3.8 cm . A column of distilled water was maintained with a height of 163.2 cm above the sample to achieve a pressure head of 120 mmHg.…”

Section: Permeabilitymentioning

confidence: 99%

Biophysical characterization of ovine forestomach extracellular matrix biomaterials

Floden¹,

Malak

Basil-Jones

et al. 2010

J Biomed Mater Res

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Ovine forestomach matrix (OFM) is a native and functional decellularized extracellular matrix biomaterial that supports cell adhesion and proliferation and is remodeled during the course of tissue regeneration. Small angle X-ray scattering demonstrated that OFM retains a native collagen architecture (d spacing = 63.5 ± 0.2 nm, orientation index = 20°). The biophysical properties of OFM were further defined using ball-burst, uniaxial and suture retention testing, as well as a quantification of aqueous permeability. OFM biomaterial was relatively strong (yield stress = 10.15 ± 1.81 MPa) and elastic (modulus = 0.044 ± 0.009 GPa). Lamination was used to generate new OFM-based biomaterials with a range of biophysical properties. The resultant multi-ply OFM biomaterials had suitable biophysical characteristics for clinical applications where the grafted biomaterial is under load.

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“…Abdolmaleki et al [7] studied the 3D porosity of knitted fabric under different uniaxial extension in course direction. They estimated the porosity of fabric based on the empirical formula developed by Guidoin's [1] and compared the results obtained from Guidoin's empirical formula under different extension with 3D theoretical methods developed by Benltoufa [2] and Karaguzel [5] in their earlier research. They also modified Benltoufa's model due to the fact that it cannot estimate the value close to experimental results under uniaxial extension in course direction of knitted fabric.…”

Section:  mentioning

confidence: 99%

“…Porosity is the ratio of void space within the boundaries of solid material to the total volume of solid material, including void spaces, defined by Guidoin [1]. He …”

Section: Introductionmentioning

confidence: 99%

Porosity Prediction of Plain Weft Knitted Fabrics

Siddiqui

Sun

2014

Fibers

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Wearing comfort of clothing is dependent on air permeability, moisture absorbency and wicking properties of fabric, which are related to the porosity of fabric. In this work, a plug-in is developed using Python script and incorporated in Abaqus/CAE for the prediction of porosity of plain weft knitted fabrics. The Plug-in is able to automatically generate 3D solid and multifilament weft knitted fabric models and accurately determine the porosity of fabrics in two steps. In this work, plain weft knitted fabrics made of monofilament, multifilament and spun yarn made of staple fibers were used to evaluate the effectiveness of the developed plug-in. In the case of staple fiber yarn, intra yarn porosity was considered in the calculation of porosity. The first step is to develop a 3D geometrical model of plain weft knitted fabric and the second step is to calculate the porosity of the fabric by using the geometrical parameter of 3D weft knitted fabric model generated in step one. The predicted porosity of plain weft knitted fabric is extracted in the second step and is displayed in the message area. The predicted results obtained from the plug-in have been compared with the experimental results obtained from previously developed models; they agreed well.

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Textile arterial prostheses: Is water permeability equivalent to porosity?

Cited by 72 publications

References 10 publications

Biomechanics of human common carotid artery and design of novel hybrid textile compliant vascular grafts

Biomechanics of human common carotid artery and design of novel hybrid textile compliant vascular grafts

Biophysical characterization of ovine forestomach extracellular matrix biomaterials

Porosity Prediction of Plain Weft Knitted Fabrics

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