ASTM F452-1976(2014) Standard Specification for Preformed Cranioplasty Plates《预制颅骨板的标准规格》.pdf
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1、Designation: F452 76 (Reapproved 2014)Standard Specification forPreformed Cranioplasty Plates1This standard is issued under the fixed designation F452; the number immediately following the designation indicates the year of originaladoption or, in the case of revision, the year of last revision. A nu
2、mber in parentheses indicates the year of last reapproval. A superscriptepsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers preformed cranioplasty plateswhich do not require further alteration for covering skulldefects. This specificat
3、ion covers compositional and physicalperformance and packaging requirements, but does not covertoxicity nor biocompatibility of the materials.2. Referenced Documents2.1 ASTM Standards:2F56 Specification for Stainless Steel Sheet and Strip forSurgical Implants (Withdrawn 1989)3F75 Specification for C
4、obalt-28 Chromium-6 MolybdenumAlloy Castings and Casting Alloy for Surgical Implants(UNS R30075)F86 Practice for Surface Preparation and Marking of Metal-lic Surgical ImplantsF139 Specification for Wrought 18Chromium-14Nickel-2.5Molybdenum Stainless Steel Sheet and Strip for Sur-gical Implants (UNS
5、S31673)2.2 American Society for Quality (ASQ) Standard:ASQ C1 Specifications of General Requirements for a Qual-ity Program43. Materials3.1 Cranioplasty plates conforming to this specificationshall be fabricated from materials described in the latest issueof Specifications F56, Grade 2, F75,orF139,
6、Grade 2. Thecondition of the material (such as, annealed, cold finished, andso forth) should be specified in the purchase order.4. Dimensions and Tolerances4.1 Cranioplasty plates conforming to this specificationshall be fabricated in a variety of dimensions to accommodate,without further alteration
7、, various sized skull defects.4.2 Shape shall be contoured so as to re-establish the normalconfiguration and symmetry of the skull at various anticipatedsites of defect such as the parietal bosses, the inion, the brow,the linea temporalis, and so forth.4.3 Plates shall contain multiple perforations
8、(see Fig. 1).4.4 Thicknesses and individual shapes shall vary with need.Thickness tolerances shall be as follows:Specified Thickness, in. (mm)Thickness Tolerances,in. (mm)0.005 (0.13) to 0.010 (0.25), incl 10 %0.010 (0.25) to 0.020 (0.51), incl 0.0015 (0.04)0.020 (0.51) to 0.035 (0.89), incl 0.002 (
9、0.05)0.035 (0.89) to 0.050 (1.27), incl 0.0025 (0.06)0.050 (1.27) to 0.100 (2.54), incl 0.003 (0.08)5. Finish and Identification5.1 Cranioplasty plates conforming to this specificationshall have their surfaces prepared in accordance with the latestissue of Practice F86. Specific requirements of surf
10、ace finish (ifany) shall be stated in the purchase order.5.2 The method of marking the plates shall be one of thosespecified in Practice F86.6. Precautions6.1 Cranioplasty plates covered by this specification shallnot be reshaped in any manner after manufacture.6.2 Material used to fasten the cranio
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