Table 5:
Available data on mechanical properties of polymers for use in implantable prosthetic heart valves.
| Year | Authors(s) | Material | Mechanical properties | References |
|---|---|---|---|---|
| 1958 | Roe et al., San Francisco | Silastic No. 50 | Tensile strength = 5 MPa Elongation at break = 250% Hardness (Shore A) = 75 |
[200], [202] |
| 1966 | Roe et al., San Francisco | General Electric No. SE-555 | Tensile strength = 11 MPa Elongation at break = 850% Hardness (Shore A) = 45 Tear strength = 44 kN/m |
[200], [202] |
| 1977 | Reul & Ghista, HIA | Avcothane-51 |
E = 2.4 MPa (100% elongation at 37° C) E = 4.4 MPa (300% elongation at 37° C) Tear strength (Trouser) = 37 kN/m |
[163], [166] |
| 1977 | Imamura & Kaye, Mayo Clinic | ePTFE | Tensile strength = 413 MPa | [216] |
| 1982 | Wisman et al., Penn State | SPU | Tensile strength = 46 MPa Elongation at break = 750% Stress at 100% elongation = 5.9 MPa Hardness (Shore A) = 75 |
[204], [232] |
| 1987 | Hilbert et al., NIH and FDA | Biomer |
E = 2.5 MPa (100% elongation at 37° C) E = 4.0 MPa (300% elongation at 37° C) Tear strength (Trouser at 37° C) = 9.6 kN/m Initial modulus E = 7.8 MPa Tensile strength = 44 MPa Tear strength = 70 kN/m |
[166], [233] [159] |
| 1987 | Herold et al., HIA | Cardiomat 610 | Tensile strength = 28.0 MPa Elongation at break = 500% Hardness (Shore A) = 80 |
[214] |
| Mitrathane M2007 | Tensile strength = 39.2 MPa Elongation at break = 775% Hardness (Shore A) = 65 |
|||
| Pampul-3 Ameo | Tensile strength = 49.0 MPa Elongation at break = 605% Hardness (Shore A) = 75 |
|||
| PUR 1025/1 | Tensile strength = 50.6 MPa Elongation at break = 649% Hardness (Shore A) = 87 |
|||
| 1995 | Leat & Fisher, Leeds | Eurothane 2003 | E = 6 MPa | [160], [161], [211] |
| IT C34 | E = 7-10 MPa | |||
| 1995 | Wheatley et al., Glasgow | Estane® 58201 | no data given | [35], [37] |
| Estane® 58315 | E = 16.2 MPa | [36], [38] | ||
| Elast-Eon™ & variants | E = 5.0–63.6 MPa | |||
| 2001 | Fisher et al., Leeds | Tecothane™ 80A | E = 10 MPa | [39] |
| 2009 | Seifalian et al., UCL | POSS-PCU | At 37° C Young’s modulus = 15.9-26.2 MPa Tensile strength = 31.0-55.9 MPa Elongation at break = 762.7-852.4% Tear strength (Die C) = 50.9-63.4 N/mm |
[46], [47], [185], [188] |
| 2009 | Mohammadi et al., Ontario | PVA-BC | 2, 3, and 5-parameter isotropic Mooney-Rivlin hyperelastic models based on tensile test data for anisotropic PVA-BC, one set of models for longitudinal direction and another set for circumferential direction | [175], [176], [189], [191] |
| 2010 | Bluestein et al, Innovia & Stony Brook | SIBS-Dacron, xSIBS | 2-parameter isotropic Mooney-Rivlin hyperelastic model based on tensile test data xSIBS tensile strength = 5 MPa | [44], [165], [167], [169], [215], [228], [234] |
| 2014 | Prawel et al., Colorado State | HA/LLDPE IPN |
E = 76.49-99.71 MPa Yield strength = 8.23-9.74 MPa Elongation at break = 476-787% Bending stiffness = 12.93-21.72 nN-m2 |
[235] |
| 2015 | Zhu et al., Singapore | ePTFE | E = 34.17 ± 0.54 MPa | [223] |
| 2019 | Guo et al., Shenyang | PEGDA/PET | Storage modulus: Parallel to fibers = ~23.30 MPa Perp. to fibers = ~9.68 MPa |
[236] |