{"id":113981,"date":"2024-11-18T12:29:38","date_gmt":"2024-11-18T11:29:38","guid":{"rendered":"https:\/\/step-lab.com\/?page_id=113981"},"modified":"2024-11-18T12:29:38","modified_gmt":"2024-11-18T11:29:38","slug":"astm-f1717","status":"publish","type":"page","link":"https:\/\/step-lab.com\/it\/astm\/astm-f1717\/","title":{"rendered":"ASTM F1717"},"content":{"rendered":"<\/p>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-188zaf1-025aa8f0fc6b97c81b0d9509fbd8acf9\">\n.avia-section.av-188zaf1-025aa8f0fc6b97c81b0d9509fbd8acf9{\nbackground-repeat:no-repeat;\nbackground-image:url(https:\/\/step-lab.com\/wp-content\/uploads\/2023\/11\/background-for-standards.jpg);\nbackground-position:0% 0%;\nbackground-attachment:scroll;\n}\n.avia-section.av-188zaf1-025aa8f0fc6b97c81b0d9509fbd8acf9 .av-section-color-overlay{\nopacity:0.4;\nbackground-color:#0a0a0a;\n}\n<\/style>\n<div id='av_section_1'  class='avia-section av-188zaf1-025aa8f0fc6b97c81b0d9509fbd8acf9 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class='av_textblock_section av-lp13y1n9-c4766d5d9a214d019a3b8ad78eae5ba3 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock av_inherit_color'  itemprop=\"text\" ><h1 style=\"text-align: center;\"><span class=\"ez-toc-section\" id=\"ASTM_F1717\"><\/span>ASTM F1717<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<\/div><\/section>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-mvr8u5-56fde4b1348f244539985c342761cdf4\">\n#top .hr.hr-invisible.av-mvr8u5-56fde4b1348f244539985c342761cdf4{\nheight:20px;\n}\n<\/style>\n<div  class='hr av-mvr8u5-56fde4b1348f244539985c342761cdf4 hr-invisible  avia-builder-el-2  el_after_av_textblock  el_before_av_textblock '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-lp13ybw2-12fa0d5871d45d46a8b38b70b055a245\">\n#top .av_textblock_section.av-lp13ybw2-12fa0d5871d45d46a8b38b70b055a245 .avia_textblock{\ncolor:#ffffff;\n}\n<\/style>\n<section  class='av_textblock_section av-lp13ybw2-12fa0d5871d45d46a8b38b70b055a245 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock av_inherit_color'  itemprop=\"text\" ><h2 style=\"text-align: center;\"><span class=\"ez-toc-section\" id=\"Metodi_di_prova_standard_per_le_strutture_implantari_spinali_in_un_modello_di_vertebrectomia\"><\/span>Metodi di prova standard per le strutture implantari spinali <\/p>\n<p>in un modello di vertebrectomia<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<\/div><\/section>\n\n<\/div><\/div><\/main><!-- close content main element --><\/div><\/div><\/div><div id='av_section_2'  class='avia-section av-1gnwkim1-b2b62b35a945794c60668458f569c99b main_color avia-section-default avia-no-border-styling  avia-builder-el-4  el_after_av_section  el_before_av_one_fifth  avia-bg-style-scroll container_wrap fullsize'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-full alpha units'><div class='post-entry post-entry-type-page post-entry-113981'><div class='entry-content-wrapper clearfix'>\n<div  class='flex_column av-4wj36t5-add2d18c09eff7a4dc20c0cb2fe72022 av_one_fifth  avia-builder-el-5  el_before_av_three_fifth  avia-builder-el-first  first flex_column_div  '     ><\/div><div  class='flex_column av-1868v455-7de514edace6091aa4d231a14d0f9d1e av_three_fifth  avia-builder-el-6  el_after_av_one_fifth  el_before_av_one_fifth  flex_column_div  '     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-lhhg43h5-bab404eb3fc2bd36a4ed6dbb07f0661f\">\n#top .av_textblock_section.av-lhhg43h5-bab404eb3fc2bd36a4ed6dbb07f0661f .avia_textblock{\nfont-size:18px;\n}\n<\/style>\n<section  class='av_textblock_section av-lhhg43h5-bab404eb3fc2bd36a4ed6dbb07f0661f '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>Le macchine di prova svolgono un ruolo cruciale nel garantire la qualit\u00e0 e la sicurezza dei dispositivi e dei componenti medici. Tra gli standard essenziali per questa valutazione c&#8217;\u00e8 l&#8217;<strong>ASTM F1717<\/strong>, che fornisce le linee guida per le prove statiche e di fatica degli impianti spinali.<br \/> L&#8217;adesione alla norma ASTM F1717 garantisce che gli impianti spinali soddisfino requisiti meccanici rigorosi, contribuendo alla loro efficacia e affidabilit\u00e0 nell&#8217;uso clinico.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title ez-toc-toggle\" style=\"cursor:pointer\">PAGE CONTENT<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #a81010;color:#a81010\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #a81010;color:#a81010\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/step-lab.com\/it\/astm\/astm-f1717\/#ASTM_F1717\" >ASTM F1717<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/step-lab.com\/it\/astm\/astm-f1717\/#Metodi_di_prova_standard_per_le_strutture_implantari_spinali_in_un_modello_di_vertebrectomia\" >Metodi di prova standard per le strutture implantari spinali \nin un modello di vertebrectomia<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/step-lab.com\/it\/astm\/astm-f1717\/#ASTM_F1717_CHE_COSE\" >ASTM F1717: CHE COS&#8217;\u00c8?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/step-lab.com\/it\/astm\/astm-f1717\/#ASTM_F1717_COSA_MISURA\" >ASTM F1717: COSA MISURA?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/step-lab.com\/it\/astm\/astm-f1717\/#ASTM_F1717_CONDIZIONI_DI_PROVA\" >ASTM F1717: CONDIZIONI DI PROVA<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/step-lab.com\/it\/astm\/astm-f1717\/#ASTM_F1717_TIPI_DI_TEST\" >ASTM F1717: TIPI DI TEST<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/step-lab.com\/it\/astm\/astm-f1717\/#MACCHINE_DI_PROVA_PER_ASTM_F1717\" >MACCHINE DI PROVA PER ASTM F1717<\/a><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n\n<\/div><\/section><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-luv221j8-0d197ab45b326e852363ee0d0dee5501\">\n#top .hr.hr-invisible.av-luv221j8-0d197ab45b326e852363ee0d0dee5501{\nheight:50px;\n}\n<\/style>\n<div  class='hr av-luv221j8-0d197ab45b326e852363ee0d0dee5501 hr-invisible'><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-luv2267g-1f7ab9f2ff419cf6f01a65d5570cb5b0\">\n#top .av_textblock_section.av-luv2267g-1f7ab9f2ff419cf6f01a65d5570cb5b0 .avia_textblock{\nfont-size:18px;\n}\n<\/style>\n<section  class='av_textblock_section av-luv2267g-1f7ab9f2ff419cf6f01a65d5570cb5b0 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><h3><span class=\"ez-toc-section\" id=\"ASTM_F1717_CHE_COSE\"><\/span>ASTM F1717: CHE COS&#8217;\u00c8?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>L&#8217;<strong>ASTM F1717<\/strong> comprende una serie di standard di prova sviluppati per <strong>definire metodi specifici per testare gli impianti spinali sia staticamente che in condizioni di fatica, in un contesto di modelli di vertebrectomia.<\/strong> Questi standard sono essenziali per valutare le prestazioni meccaniche degli impianti spinali, consentendo il confronto tra diverse configurazioni e applicazioni, nonch\u00e9 tra diversi design. In sostanza, forniscono linee guida per valutare le prestazioni degli impianti spinali in vari contesti anatomici e con diversi metodi di applicazione alla colonna vertebrale.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"ASTM_F1717_COSA_MISURA\"><\/span>ASTM F1717: COSA MISURA?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Gli standard ASTM F1717 si concentrano sulla <strong>valutazione delle caratteristiche meccaniche statiche e dinamiche degli impianti spinali. <\/strong> I test meccanici associati sono condotti in vitro, utilizzando schemi di carico semplificati che, sebbene non siano in grado di replicare accuratamente i carichi complessi che agiscono sulla colonna vertebrale in vivo, consentono comunque di confrontare diverse configurazioni di impianti spinali in termini di parametri meccanici rilevanti.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"ASTM_F1717_CONDIZIONI_DI_PROVA\"><\/span>ASTM F1717: CONDIZIONI DI PROVA<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>In generale, vengono testati <strong>sei campioni<\/strong>, con due blocchi di UHMWPE utilizzati per la fissazione dell&#8217;impianto. Il carico dinamico \u00e8 condotto a una <strong>frequenza di 5 Hz<\/strong> e <strong>fino a 5 milioni di cicli<\/strong>. I test regolari vengono eseguiti in aria a <strong>temperatura ambiente<\/strong>. Tuttavia, se il materiale dell&#8217;impianto richiede un&#8217;impostazione dei test che simuli le condizioni ambientali corporee a 37\u00b0C in soluzione salina, queste condizioni vengono accettate.<\/p>\n<p>Lo standard definisce quattro procedure di prova: flessione statica e dinamica a compressione assiale, flessione statica a trazione e torsione statica. <br \/> \u00c8 applicabile sia al sistema lombare che a quello cervicale.<\/p>\n<\/div><\/section><\/p><\/div><div  class='flex_column av-147i6tx5-c041fd231a4e04ab6f1d0e907ce115b5 av_one_fifth flex_column_div  '     ><\/div><div  class='flex_column av-z3c3pbt-ae1a16c373e6a6893e8dce99f9d3514b av_one_fourth first flex_column_div  '     ><\/div><div  class='flex_column av-w2hy189-870f4649560c79b20abf73b8fe2e24b2 av_one_fourth flex_column_div  '     ><style type=\"text\/css\" data-created_by=\"avia_inline_auto\" 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https:\/\/step-lab.com\/wp-content\/uploads\/2024\/04\/astm-f1717-test-setup-80x80.jpg 80w, https:\/\/step-lab.com\/wp-content\/uploads\/2024\/04\/astm-f1717-test-setup-36x36.jpg 36w, https:\/\/step-lab.com\/wp-content\/uploads\/2024\/04\/astm-f1717-test-setup-180x180.jpg 180w, https:\/\/step-lab.com\/wp-content\/uploads\/2024\/04\/astm-f1717-test-setup.jpg 342w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/div><\/div><\/div><\/div><div  class='flex_column av-d8z92g3-2674f73552123ae5c63cb0f469f6baa3 av_one_fourth flex_column_div  '     ><style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-lutvs1hn-83452061806d34af439efdcb5cf6e005\">\n.avia-image-container.av-lutvs1hn-83452061806d34af439efdcb5cf6e005 img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-lutvs1hn-83452061806d34af439efdcb5cf6e005 .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-lutvs1hn-83452061806d34af439efdcb5cf6e005 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.hr.hr-invisible.av-lucf3ozx-3723460a3af32428ee21a96b2af6cbf3{\nheight:50px;\n}\n<\/style>\n<div  class='hr av-lucf3ozx-3723460a3af32428ee21a96b2af6cbf3 hr-invisible'><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<div  class='flex_column av-lscvj3t-abcc1142c9dc5d0601ff50e837ea95e1 av_one_fifth first flex_column_div  '     ><\/div><div  class='flex_column av-ej1d9h5-22343c69ea967d7bd661103c1d9a4d5d av_three_fifth flex_column_div  '     ><style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-lucf02lq-d2ee6962929a31d20654db5cb3d8b0a3\">\n#top .av_textblock_section.av-lucf02lq-d2ee6962929a31d20654db5cb3d8b0a3 .avia_textblock{\nfont-size:18px;\n}\n<\/style>\n<section  class='av_textblock_section av-lucf02lq-d2ee6962929a31d20654db5cb3d8b0a3 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><h3><span class=\"ez-toc-section\" id=\"ASTM_F1717_TIPI_DI_TEST\"><\/span>ASTM F1717: TIPI DI TEST<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Gli standard ASTM F1717 delineano quattro tipi principali di test:<\/p>\n<\/div><\/section><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-luv1crcr-ed5867ba2f84274960a486612c20ed99\">\n#top .togglecontainer.av-luv1crcr-ed5867ba2f84274960a486612c20ed99 p.toggler{\nfont-size:16px;\n}\n<\/style>\n<div  class='togglecontainer av-luv1crcr-ed5867ba2f84274960a486612c20ed99 av-minimal-toggle toggle_close_all' >\n<section class='av_toggle_section av-luv1bewx-21a088310c9c8b12acdd44a5d828af6f'  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div role=\"tablist\" class=\"single_toggle\" data-tags=\"{Tutto} \"  ><p id='toggle-toggle-id-5' data-fake-id='#toggle-id-5' class='toggler  av-title-above '  itemprop=\"headline\"  role='tab' tabindex='0' aria-controls='toggle-id-5' data-slide-speed=\"200\" data-title=\"Prova di flessione a compressione\" data-title-open=\"\" data-aria_collapsed=\"Clicca per espandere: Prova di flessione a compressione\" data-aria_expanded=\"Fare clic per chiudere: Prova di flessione a compressione\">Prova di flessione a compressione<span class=\"toggle_icon\"><span class=\"vert_icon\"><\/span><span class=\"hor_icon\"><\/span><\/span><\/p><div id='toggle-id-5' aria-labelledby='toggle-toggle-id-5' role='region' class='toggle_wrap  av-title-above'  ><div class='toggle_content invers-color '  itemprop=\"text\" ><ul>\n<li>Scopo del test: questo test valuta la resistenza e la stabilit\u00e0 degli impianti spinali quando vengono sottoposti a carichi di compressione e flessione simili a quelli della colonna vertebrale umana.<\/li>\n<li>Procedura di prova:\n<ul>\n<li>Preparazione del campione: I blocchi di polietilene ad altissimo peso molecolare (UHMWPE) sono selezionati per simulare i corpi vertebrali. Gli ancoraggi necessari per l&#8217;installazione del campione sono preparati secondo le istruzioni del produttore.<\/li>\n<li>Montaggio dell&#8217;impianto spinale: L&#8217;impianto spinale viene assemblato e installato tra i blocchi di UHMWPE, rispettando le specifiche del produttore.<\/li>\n<li>Applicazione del carico: Il carico viene applicato alla velocit\u00e0 specificata negli standard ASTM F1717 (di solito 25 mm\/min) fino al raggiungimento del punto di snervamento o oltre.<\/li>\n<\/ul>\n<\/li>\n<li>Parametri valutati: Le curve carico-spostamento vengono registrate durante il test per valutare la rigidit\u00e0, il carico di snervamento e il carico ultimo dell&#8217;impianto spinale.\n<ul>\n<li>Spostamento al 2% di rendimento offset (mm)<\/li>\n<li>Spostamento elastico (mm)<\/li>\n<li>Carico di snervamento a compressione (N)<\/li>\n<li>Rigidit\u00e0 di flessione a compressione (N\/mm)<\/li>\n<li>Spostamento ultimo a compressione e flessione (mm)<\/li>\n<li>Carico ultimo di flessione a compressione (N)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/div><\/div><\/div><\/section>\n<section class='av_toggle_section av-luv1bt9t-f8ce2840a50113d1fa38ff12f6d26d59'  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div role=\"tablist\" class=\"single_toggle\" data-tags=\"{Tutto} \"  ><p id='toggle-toggle-id-6' data-fake-id='#toggle-id-6' class='toggler  av-title-above '  itemprop=\"headline\"  role='tab' tabindex='0' aria-controls='toggle-id-6' data-slide-speed=\"200\" data-title=\"Prova di flessione a trazione\" data-title-open=\"\" data-aria_collapsed=\"Clicca per espandere: Prova di flessione a trazione\" data-aria_expanded=\"Fare clic per chiudere: Prova di flessione a trazione\">Prova di flessione a trazione<span class=\"toggle_icon\"><span class=\"vert_icon\"><\/span><span class=\"hor_icon\"><\/span><\/span><\/p><div id='toggle-id-6' aria-labelledby='toggle-toggle-id-6' role='region' class='toggle_wrap  av-title-above'  ><div class='toggle_content invers-color '  itemprop=\"text\" ><ul>\n<li>Scopo del test: questo test valuta la resistenza degli impianti spinali quando sono sottoposti a carichi di trazione e flessione, simulando le condizioni di utilizzo reali.<\/li>\n<li>Procedura di prova:\n<ul>\n<li>Preparazione del campione: Si seguono le stesse procedure di preparazione dei campioni della prova di flessione a compressione.<\/li>\n<li>Montaggio dell&#8217;impianto spinale: L&#8217;impianto viene installato tra i blocchi di UHMWPE.<\/li>\n<li>Applicazione del carico: Il carico viene applicato secondo il protocollo stabilito, con registrazione delle curve carico-spostamento e valutazione dei parametri di resistenza.<\/li>\n<li>Analisi dei dati: Valutare i parametri, tra cui:\n<ul>\n<li>Spostamento al 2% di rendimento offset (mm)<\/li>\n<li>Spostamento elastico (mm)<\/li>\n<li>Carico di snervamento a trazione e flessione (N)<\/li>\n<li>Rigidit\u00e0 di flessione a trazione (N\/mm)<\/li>\n<li>Spostamenti definitivi a trazione e flessione (mm)<\/li>\n<li>Carico ultimo di flessione a trazione (N)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/div><\/div><\/div><\/section>\n<section class='av_toggle_section av-luv1c9k7-85bcf0d2f065d752a0b3c02ebab7df68'  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div role=\"tablist\" class=\"single_toggle\" data-tags=\"{Tutto} \"  ><p id='toggle-toggle-id-7' data-fake-id='#toggle-id-7' class='toggler  av-title-above '  itemprop=\"headline\"  role='tab' tabindex='0' aria-controls='toggle-id-7' data-slide-speed=\"200\" data-title=\"&#8221;Test\" data-title-open=\"\" data-aria_collapsed=\"Clicca per espandere: &#8221;Test\" data-aria_expanded=\"Fare clic per chiudere: &#8221;Test\">&#8221;Test<span class=\"toggle_icon\"><span class=\"vert_icon\"><\/span><span class=\"hor_icon\"><\/span><\/span><\/p><div id='toggle-id-7' aria-labelledby='toggle-toggle-id-7' role='region' class='toggle_wrap  av-title-above'  ><div class='toggle_content invers-color '  itemprop=\"text\" ><section class='av_toggle_section av-luv1cj2i-10f07959be951e51dfafe7d4a430010a'  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div role=\"tablist\" class=\"single_toggle\" data-tags=\"{Tutto} \"  ><p id='toggle-toggle-id-8' data-fake-id='#toggle-id-8' class='toggler  av-title-above '  itemprop=\"headline\"  role='tab' tabindex='0' aria-controls='toggle-id-8' data-slide-speed=\"200\" data-title=\"Prova di fatica a compressione e flessione\" data-title-open=\"\" data-aria_collapsed=\"Clicca per espandere: Prova di fatica a compressione e flessione\" data-aria_expanded=\"Fare clic per chiudere: Prova di fatica a compressione e flessione\">Prova di fatica a compressione e flessione<span class=\"toggle_icon\"><span class=\"vert_icon\"><\/span><span class=\"hor_icon\"><\/span><\/span><\/p><div id='toggle-id-8' aria-labelledby='toggle-toggle-id-8' role='region' class='toggle_wrap  av-title-above'  ><div class='toggle_content invers-color '  itemprop=\"text\" ><\/div><\/div><\/div><\/section>\n<ul>\n<li>Scopo del test: questo test valuta la resistenza degli impianti spinali a carichi ciclici, simili a quelli che si verificano durante le attivit\u00e0 quotidiane.<\/li>\n<li>Procedura di prova:\n<ul>\n<li>Preparazione dei campioni: I campioni di prova sono preparati seguendo le istruzioni specificate nelle norme ASTM F1717.<\/li>\n<li>Montaggio dell&#8217;impianto spinale: L&#8217;impianto viene installato tra i blocchi di UHMWPE.<\/li>\n<li>Cicli di carico: Viene applicato un carico ciclico ripetuto a una frequenza specifica per un numero predeterminato di cicli, monitorando la deformazione e la resistenza dell&#8217;impianto.<\/li>\n<li>Valutazione: Monitorare i guasti iniziali e secondari, registrare le modalit\u00e0 di guasto e valutare le deformazioni. Determinare il limite di resistenza e tracciare una curva di fatica semilogica del carico di flessione a compressione rispetto al numero di cicli a rottura.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/div><\/div><\/div><\/section>\n<\/div><\/p><\/div><div  class='flex_column av-193ned5-e7e72b3a46a4befbdaab3d7db21a6830 av_one_fifth flex_column_div  '     ><\/div><\/div><\/div><\/div><!-- close content main div --><\/div><\/div><div id='after_section_5'  class='main_color av_default_container_wrap container_wrap fullsize'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-full alpha units'><div class='post-entry post-entry-type-page post-entry-113981'><div class='entry-content-wrapper clearfix'><div  class='flex_column av-89325pu-92f0c2a29ff147e9c5e41a077efe7fd0 av_one_fifth first flex_column_div  '     ><\/div><\/p>\n<div  class='flex_column av-77i2ws9-91ef2cf69fb46ab319f538662d9dbbe3 av_one_fifth flex_column_div  '     ><style type=\"text\/css\" 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data-created_by=\"avia_inline_auto\" id=\"style-css-av-6n05yc2-85f52271b82a7e63b047c0ade7fc99fd\">\n#top .hr.hr-invisible.av-6n05yc2-85f52271b82a7e63b047c0ade7fc99fd{\nheight:80px;\n}\n<\/style>\n<div  class='hr av-6n05yc2-85f52271b82a7e63b047c0ade7fc99fd hr-invisible'><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-lhhg4moj-16052842af2f6b59284250826eabb65f\">\n#top .av_textblock_section.av-lhhg4moj-16052842af2f6b59284250826eabb65f .avia_textblock{\nfont-size:16px;\n}\n<\/style>\n<section  class='av_textblock_section av-lhhg4moj-16052842af2f6b59284250826eabb65f '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><h3><span class=\"ez-toc-section\" id=\"MACCHINE_DI_PROVA_PER_ASTM_F1717\"><\/span>MACCHINE DI PROVA PER ASTM F1717<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>STEP Lab offre <strong>sistemi multi-attuatore<\/strong> per prove di trazione e torsione. <strong>I sistemi BV sono disponibili in un&#8217;ampia gamma di carichi, con capacit\u00e0 di coppia fino a 230 Nm.<\/strong> Il motore torsionale \u00e8 abbinato a tutte le serie di attuatori lineari che produciamo, dagli attuatori elettromeccanici, alla <strong>serie EA e a tutte le serie UD, HUD e XUD<\/strong> basate su motori lineari.<\/p>\n<ul>\n<li>Controllo di due o pi\u00f9 assi sincronizzati<\/li>\n<li>Nessuna manutenzione<\/li>\n<li>Alta efficienza<\/li>\n<li>Facile installazione<\/li>\n<\/ul>\n<\/div><\/section><br \/>\n<div  class='avia-button-wrap av-lucf7x5g-d1db35df5c8a95c6e55a48387b81bce4-wrap avia-button-left '><a href='https:\/\/step-lab.com\/multi-actuator-systems\/'  class='avia-button av-lucf7x5g-d1db35df5c8a95c6e55a48387b81bce4 av-link-btn avia-icon_select-yes-left-icon avia-size-small avia-position-left avia-color-theme-color'   aria-label=\"Sistemi di prova biassiali\"><span 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