YY/T 0809.12-2020 PDF EnglishUS$170.00 · In stock · Download in 9 seconds
YY/T 0809.12-2020: Implants for surgery - Partial and total hip joint prostheses - Part 12: Deformation test method for acetabular shells Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid
Similar standardsYY/T 0809.12-2020: Implants for surgery - Partial and total hip joint prostheses - Part 12: Deformation test method for acetabular shells---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/YYT0809.12-2020 YY PHARMACEUTICAL INDUSTRY STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 11.040.40 C 35 Implants for surgery - Partial and total hip joint prostheses - Part 12: Deformation test method for acetabular shells (ISO 7206-12:2016, MOD) ISSUED ON: JUNE 30, 2020 IMPLEMENTED ON: JUNE 01, 2021 Issued by: National Medical Products Administration Table of ContentsForeword ... 3 1 Scope ... 5 2 Normative references ... 5 3 Terms and definitions ... 6 4 Test principle ... 8 5 Apparatus ... 8 6 Test procedure ... 10 7 Report ... 11 References ... 13ForewordGB/T 0809 Implants for surgery - Partial and total hip joint prostheses is expected to be divided into the following parts: -- Part 1: Classification and designation of dimensions; -- Part 2: Articulating surfaces made of metallic, ceramic and plastics materials; -- Part 3: (reserved); -- Part 4: Determination of endurance properties and performance of stemmed femoral components; -- Part 5: (reserved); -- Part 6: Endurance properties testing and performance requirements of neck region of stemmed femoral components; -- Part 7: (reserved); -- Part 8: Endurance performance of stemmed femoral components with application of torsion; -- Part 9: (reserved); -- Part 10: Determination of resistance to static load of modular femoral heads; -- Part 11: -- Part 12: Deformation test method for acetabular shells; -- Part 13: Determination of resistance to torque of head fixation of stemmed femoral components. This Part is Part 12 of YY/T 0809. This Part is drafted in accordance with the rules given in GB/T 1.1-2009. This Part uses the redraft method to modify and adopt ISO 7206-12:2016 Implants for surgery - Partial and total hip joint prostheses - Part 12: Deformation test method for acetabular shells. This Part has the following technical differences compared with ISO 7206-12:2016: -- With regard to the normative references, this Part makes technical adjustments to adapt to the technical conditions of China. The adjustments are concentrated in Clause 2 “Normative references”. The specific adjustments are as follows: Implants for surgery - Partial and total hip joint prostheses - Part 12: Deformation test method for acetabular shells1 ScopeThis part of YY/T 0809 specifies a test method for determining short-term deformation of a press-fit acetabular component for total hip joint replacement under specific laboratory conditions. It also defines the conditions of testing so that the important parameters that affect the components are taken into account and it describes how the specimen is set up for testing. Furthermore, it specifies the test parameters for testing press-fit acetabular components. The described method is intended to be used to evaluate the comparison of various designs and materials used for acetabular components in total hip joint replacement when tested under similar conditions. The loading of the acetabular components in vivo will, in general, differ from the loading defined in this test method. The results obtained here cannot be used to directly predict in vivo performance. This Part does not cover methods of examining the test specimen.2 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 12417.2, Non-active surgical implants - Osteosynthesis and joint replacement implants - Part 2: Particular requirements for joint replacement implants (GB/T 12417.2-2008, ISO 21534:2002, IDT) YY/T 0809.1, Implants for surgery - Partial and total hip joint prostheses - Part 1: Classification and designation of dimensions (YY/T 0809.1-2010, ISO 7206-1:2008, IDT) YY/T 0809.2, Implants for surgery - Partial and total hip joint prostheses - Part 2: Articulating surfaces made of metallic, ceramic and plastics materials (YY/T 0809.2-2010, ISO 7206-2:1996, MOD) clamping jaws shall be used which are designed in a way that the specimen can be fixed and loaded. The width of the clamping surface shall be at least 20 % of the outer diameter of the test specimen at the frontal face reference plane allowing the manual centering of the test specimen contact points on the clamping surfaces prior testing. Additional centering features or tools are not necessary. If centering features or tools are provided, ensure that the two-point loading and the deformation of the test specimen are not constrained. The load cell shall be capable of measuring an axial compressive force with an uncertainty of 1%. 5.2 Test specimen selection The test specimen of that size of the acetabular component, which has been identified to be the worst-case size, shall be randomly selected being representative for manufacturing and shall have the same geometry and be made to the same material specification through the same process as the final product. Note: In case of modular acetabular components, the worst-case size for the first step of testing (metal backing deformation) may be different from the worst-case size of the second step of testing (articulating surface deformation of the acetabular component). If there are different articulating surface materials offered for the modular acetabular components, then all insert articulating surface material and sizes shall be evaluated regarding identification of worst-case material and sizes. Design features, such as asymmetrically located screw holes, shall also be considered.6 Test procedurea) Prior to loading, measure the inner diameter, D0 [mm], of the specimen for each of the planned loading directions by using a capable measurement device. The diameter shall be measured in the measurement plane inside the spherical socket. An uncertainty of the measurement of < 5 μm is required. The diameter can additionally be measured at further positions in the same measurement plane, e.g., perpendicular to the loading direction, for acquisition of additional data on the general deformation behavior of the test specimen. b) Position the specimen in the testing set-up and apply and maintain an axial force of (1.00 ± 0.01) kN by steady turning the load adjustment screw. Avoid jerky loading. The contact points of the specimen with the loading surfaces of the load frame shall be located within the loading plane. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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