{"id":5778,"date":"2024-08-27T13:27:03","date_gmt":"2024-08-27T11:27:03","guid":{"rendered":"https:\/\/ikv-aachen.de\/center-for-plastic-analysis-and-testing-kap\/practical-examples\/practical-examples-medical-technology\/"},"modified":"2025-08-05T12:07:00","modified_gmt":"2025-08-05T10:07:00","slug":"practical-examples-medical-technology","status":"publish","type":"page","link":"https:\/\/ikv-aachen.de\/en\/center-for-plastic-analysis-and-testing-kap\/practical-examples\/practical-examples-medical-technology\/","title":{"rendered":"Practical examples: Medical technology"},"content":{"rendered":"<style type=\"text\/css\">\n    #page-headers-block_5990a1c0b6a6f7f3cf308559e0fad4f7  {\n        --gradientbackground: #00af69;\n        --gradientbackground: #00af69;\n        --gradientBackgroundLight: hsl(from #00af69 h calc(s * 0.8) calc(l * 1.3));\n        --gradientBackgroundLight2: hsl(from #00af69 h s calc(l * 1.5));\n            }\n<\/style>\n<section id=\"page-headers-block_5990a1c0b6a6f7f3cf308559e0fad4f7\" class=\" hyphens-auto  mb-base  md:mb-xl \">\n                <header class=\"theGrid14 grid-rows-auto-s-s overflow-hidden relative bg-white\">\n            <figure class=\"absolute col-span-all row-span-all w-full  opacity-40 blur-md scale-110 overflow-hidden pointer-events-none \"><img decoding=\"async\"  class=\"order-1 w-full h-full object-cover\"  src=\"https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/10\/dental-aligner-used-by-dental-doctors-isolated-on-2023-11-27-04-49-40-utc-scaled.jpg\" srcset=\"https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/10\/dental-aligner-used-by-dental-doctors-isolated-on-2023-11-27-04-49-40-utc-scaled.jpg 2560w, https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/10\/dental-aligner-used-by-dental-doctors-isolated-on-2023-11-27-04-49-40-utc-748x499.jpg 748w, https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/10\/dental-aligner-used-by-dental-doctors-isolated-on-2023-11-27-04-49-40-utc-1536x1025.jpg 1536w, https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/10\/dental-aligner-used-by-dental-doctors-isolated-on-2023-11-27-04-49-40-utc-768x513.jpg 768w, https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/10\/dental-aligner-used-by-dental-doctors-isolated-on-2023-11-27-04-49-40-utc-2048x1367.jpg 2048w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" width=\"2560\" height=\"1709\" alt=\"Bisschiene aus der Dentalmedizin\" loading=\"lazy\" \/><\/figure>            <h1 data-left class=\"py-base  col-span-12 col-start-2 row-start-1 self-end md:col-span-6 md:col-start-2 z-10\">\n                <span class=\"text-blue pt-xs ikv-condensed block hyphens-none text-balance text-3xl font-bold pb-xs leading-none md:text-rigth\">\n                    Practical examples                  <\/span>\n                                    <span class=\"text-blue block hyphens-none text-balance font-serif text-base font-semibold md:text-rigth\">\n                        Medical technology                    <\/span>\n                            <\/h1>\n            <figure class=\" contents \"><img decoding=\"async\"  class=\"col-span-full md:col-span-6 md:row-span-3 w-full h-full object-cover z-10\"  src=\"https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/10\/dental-aligner-used-by-dental-doctors-isolated-on-2023-11-27-04-49-40-utc-scaled.jpg\" srcset=\"https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/10\/dental-aligner-used-by-dental-doctors-isolated-on-2023-11-27-04-49-40-utc-scaled.jpg 2560w, https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/10\/dental-aligner-used-by-dental-doctors-isolated-on-2023-11-27-04-49-40-utc-748x499.jpg 748w, https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/10\/dental-aligner-used-by-dental-doctors-isolated-on-2023-11-27-04-49-40-utc-1536x1025.jpg 1536w, https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/10\/dental-aligner-used-by-dental-doctors-isolated-on-2023-11-27-04-49-40-utc-768x513.jpg 768w, https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/10\/dental-aligner-used-by-dental-doctors-isolated-on-2023-11-27-04-49-40-utc-2048x1367.jpg 2048w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" width=\"2560\" height=\"1709\" alt=\"Bisschiene aus der Dentalmedizin\" loading=\"lazy\" \/><span class=\"text-blue md:pb-xs text-copyright col-start-2  col-span-3 row-span-1 row-start-3 pb-4 md:col-span-5 md:col-start-3 md:row-start-3 md:text-right xl:col-span-4 xl:col-start-4 xl:row-start-3 z-10\">&copy; joaquincorbalan<\/span><figcaption class=\"text-blue  text-figcaption col-span-9 row-span-1 row-start-3 text-right sm:col-span-8 sm:col-start-6 md:col-span-5 md:col-start-3 md:row-start-2 xl:col-span-4 xl:col-start-4 xl:row-start-2 mt-0 pb-xs md:pb-0 z-10\">Reliability of plastic products in medical technology: Case studies show how precise material testing can eliminate potential risks and guarantee safety standards.<\/figcaption><\/figure>        <\/header>\n    \n                <\/section><section id=\"toc-block_261d3b024d1b8d7f3a7977006dc727cf\" class=\"   py-xl  \">\n    <div class=\"theGridWrapper \">\n        <nav class=\"theGrid12 \">\n            <div class=\"relative\n            col-start-1 col-span-12\n            md:col-start-2 md:col-span-10\n            sm:before:block sm:before:bg-blue before:h-[1px] before:w-full before:absolute before:translate-y-[1.3em] before:-z-10\">\n                <h3 class=\"font-serif text-blue text-xl font-semibold sm:text-center\">\n                    <span class=\"inline-block bg-white sm:px-base\">\n                        Beispiele aus der Praxis                    <\/span>\n                <\/h3>\n            <\/div>\n            <ul class=\"\n            col-start-1 col-span-12\n            sm:columns-2\n            md:col-start-2 md:col-span-10\n            md:columns-3\n            lg:col-start-3 lg:col-span-8\n            gap-x-xs gap-y-0\n            \">\n                                                        <li class=\"flex gap-x-[.2em]  text-blue font-thin text-base overflow-hidden  \">\n                        <div class=\"flex-[0_0_1.2em]\">\n                            <span class=\"material-symbols-outlined \"> fiber_manual_record <\/span>\n                        <\/div>\n                        <a href='#Oxygenator' class='text-blue no-underline border-b-dashed translate-y-[.125em] block '>Oxygenator<\/a>\n                    <\/li>\n                                                        <li class=\"flex gap-x-[.2em]  text-blue font-thin text-base overflow-hidden  \">\n                        <div class=\"flex-[0_0_1.2em]\">\n                            <span class=\"material-symbols-outlined \"> fiber_manual_record <\/span>\n                        <\/div>\n                        <a href='#Aufbiss-Schiene' class='text-blue no-underline border-b-dashed translate-y-[.125em] block '>Aufbiss-Schiene<\/a>\n                    <\/li>\n                            <\/ul>\n        <\/nav>\n    <\/div>\n<\/section>\n<ul id=\"toc-menu\" class=\"flex flex-col\">\n    <!-- <li>\n        <a href=\"#toc-block_261d3b024d1b8d7f3a7977006dc727cf\" class=\"no-underline\">\n            <span class=\"material-symbols-outlined\"> toc <\/span>\n        <\/a>\n    <\/li> -->\n            <li class=\"group\/toc relative  align-middle \"><a href='#Oxygenator' class='no-underline  block relative'><span class=\"material-symbols-outlined\"> fiber_manual_record <\/span><span class='none group-hover\/toc:grad-xl pointer-events-none absolute right-0 top-0 flex h-full w-[30ch] translate-x-base items-center justify-end text-balance pr-xl text-right text-base tracking-wide no-underline opacity-0 transition-all delay-0 duration-500 ease-in-out group-hover\/sidebar:pointer-events-auto group-hover\/toc:pointer-events-auto group-hover\/sidebar:-translate-x-0 group-hover\/toc:-translate-x-base group-hover\/sidebar:opacity-100 group-hover\/sidebar:delay-300 group-hover\/toc:delay-0\n    '>Oxygenator<\/span><\/a><\/li>            <li class=\"group\/toc relative  align-middle \"><a href='#Aufbiss-Schiene' class='no-underline  block relative'><span class=\"material-symbols-outlined\"> fiber_manual_record <\/span><span class='none group-hover\/toc:grad-xl pointer-events-none absolute right-0 top-0 flex h-full w-[30ch] translate-x-base items-center justify-end text-balance pr-xl text-right text-base tracking-wide no-underline opacity-0 transition-all delay-0 duration-500 ease-in-out group-hover\/sidebar:pointer-events-auto group-hover\/toc:pointer-events-auto group-hover\/sidebar:-translate-x-0 group-hover\/toc:-translate-x-base group-hover\/sidebar:opacity-100 group-hover\/sidebar:delay-300 group-hover\/toc:delay-0\n    '>Aufbiss-Schiene<\/span><\/a><\/li>    <\/ul>\n<a href=\"#toc-block_261d3b024d1b8d7f3a7977006dc727cf\" class=\"\n    z-20\n    lg:hidden\n    fixed\n    flex\n    items-center\n    justify-center\n    w-[2em]\n    h-[2em]\n\n    rounded-full\n    bottom-m\n    right-m\n    bg-white\n    text-blue\n\n    no-underline\n    scale-125\n    shadow-md\n    \">\n    <span class=\"material-symbols-outlined !translate-y-[0] scale-125 \"> list <\/span>\n<\/a>\n\n<script>\n    var elementToMove = document.querySelector('#toc-menu');\n    var newParent = document.querySelector('#toc-wrapper');\n    newParent.appendChild(elementToMove);\n<\/script>\n<a id=\"toc-marker-block_0ade5b259afab19974c08a2fb403586e\" class=\"toc-marker -top-[--toc-height] \" name=\"Oxygenator\" data-tocmarker=\"Oxygenator\"><\/a>    <section id=\"headline-block_28f51c485df4f0bdf24aff89b08ab4db\" class=\"block-headline   bg-blue\">\n        <div class=\"theGridWrapper hyphens-auto\">\n            <div class=\"theGrid12\">\n                <div class=\"\n                col-span-10\n                col-start-2\n                xl:col-span-9\n                xl:col-start-3\n                text-4xl\npy-8\n                \">\n                    <div class=\"\n                    \">\n                        <h3 class=\" leading-none text-green \">\n                            Damage analysis                        <\/h3>\n                                                    <h3 class=\"pt-4 font-semibold  text-white  leading-none\">\n                                on an oxygenator                            <\/h3>\n                                            <\/div>\n                <\/div>\n            <\/div>\n        <\/div>\n    <\/section>\n<section id=\"two-columns-block_cc11556f69d20389c8199a502f2fbb6d\" class=\"block-two-columns blocksection \">\n    <div class=\"theGridWrapper\">\n        <div class=\"theGrid12\">\n            <div class=\"wysiwyg\n            relative\n\n            col-start-1\n            col-span-12\n\n            md:col-start-3\n            md:col-span-9\n            md:gap-8\n\n            lg:col-start-3\n            lg:col-span-8\n\n            2xl:col-start-2\n            2xl:col-span-9\n\n            2xl:gap-[7rem]\n\n            sm:columns-2\n            hyphens-auto \n            sm:after:content-['\\00A0']\n            sm:after:block\n            sm:after:h-3xl\n            \">\n                <figure id=\"attachment_3193\" class=\"wp-caption alignleft\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-3193 size-large\" src=\"https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/10\/AdobeStock_54882107-1536x1024.jpeg\" alt=\"\" width=\"1536\" height=\"1024\" srcset=\"https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/10\/AdobeStock_54882107-1536x1024.jpeg 1536w, https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/10\/AdobeStock_54882107-748x499.jpeg 748w, https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/10\/AdobeStock_54882107-768x512.jpeg 768w, https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/10\/AdobeStock_54882107-2048x1365.jpeg 2048w\" sizes=\"auto, (max-width: 1536px) 100vw, 1536px\" \/><figcaption class=\"wp-caption-text\">Oxygenators are used &#8211; for example during operations &#8211; to exchange blood gas in the extracorporeal circulation and to regulate the temperature of the arterial blood. <i>stock.adobe.com<\/i><\/figcaption><\/figure>\n<h3>Problem: Contamination and cracks in the intake manifold of oxygenators<\/h3>\n<div class=\"ce-textpic ce-right ce-intext no-gallery\">\n<div class=\"ce-bodytext\">\n<p>Oxygenators are used &#8211; for example during operations &#8211; to exchange blood gas in the extracorporeal circulation and to regulate the temperature of the arterial blood. These devices are made from highly transparent polycarbonate, among other materials. The oxygenators are rinsed and cleaned with water and certain alcohols after and immediately before use in the operating theater. At a certain point in time, complaints were reported from hospitals about a product series, which quickly became more frequent.<\/p>\n<p>The complaints relate to superficial cracks on one of the connection pieces. On the one hand, the resulting risk consists of a mechanical weakening of the material, which is more or less obvious. However, the danger posed by microbes embedded in the cracks, which are protected from direct contact with the cleaning media in the crack, is much more subtle. In this way, they can come into contact with the blood.<\/p>\n<\/div>\n<\/div>\n<hr>\n<h3>Analysis method: Polarization microscope images<\/h3>\n<p>An analysis using polarization microscopy methods shows that the material of the oxygenator housing is under strong tension. This can be seen from the vivid, sharply defined color patterns in the image. The image also shows the contamination in the area of a connection piece.  <\/p>\n<figure id=\"attachment_2783\" class=\"wp-caption alignright\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-2783\" src=\"https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/09\/KAP-Mikroskopische-Aufnahme-Oxygenator.jpg\" alt=\"\" width=\"300\" height=\"224\"><figcaption class=\"wp-caption-text\">Connecting pieces with stress cracks and contamination <i>IKV<\/i><\/figcaption><\/figure>\n<h3>Result: Adjustment of production parameters necessary after change of supplier<\/h3>\n<div class=\"ce-textpic ce-left ce-intext\">\n<div class=\"ce-gallery\" data-ce-columns=\"1\" data-ce-images=\"1\">\n<div class=\"ce-row\">\n<div class=\"ce-column\">Thanks to a well-functioning claims management system, the complaints could be correlated phenomenologically with a change of raw material supplier. Based on the results, it was found that the production parameters were not adapted to the different material viscosity when the material was changed. Suitable remedial measures could be derived from the damage analysis.  <\/div>\n<\/div>\n<\/div>\n<\/div>\n    <article itemscope itemtype=\"http:\/\/schema.org\/Person\" class=\" border-t border-green border-dotted pt-base mt-base\">\n        <figure class=\" dn_no_select  rounded-full  w-[10em] h-auto object-cov overflow-hidden mb-base bigInMiddle\"><img decoding=\"async\"  class=\"dn-no-drag w-full h-auto object-cover\"  src=\"https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/05\/Christoph-Zekorn.jpg\" srcset=\"https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/05\/Christoph-Zekorn.jpg 1080w, https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/05\/Christoph-Zekorn-748x748.jpg 748w, https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/05\/Christoph-Zekorn-335x335.jpg 335w, https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/05\/Christoph-Zekorn-768x768.jpg 768w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" width=\"1080\" height=\"1080\" alt=\"Christoph-Zekorn\" loading=\"lazy\" \/><\/figure>        <h2 itemprop='name' class=\"font-bold\">\n             Christoph Zekorn        <\/h2>\n                    <p itemprop='jobTitle' class=\"\">\n                Head of the Microscopic Analysis Laboratory            <\/p>\n                            <div>\n                <h3 class=\"mt-2xs\">Kontakt:<\/h3>\n                <p>\n                    <span itemprop=\"telephone\">+49 241 80-28341<\/span><br>\n                <\/p>\n                <a href=\"mailto:christoph.zekorn@ikv.rwth-aachen.de\" itemprop=\"email\">christoph.zekorn@ikv.rwth-aachen.de<\/a>\n            <\/div>\n                <ul class=\"flex gap-xs mt-xs\">\n            <li>\n                    <a data-con-tap href=\"tel:+49 241 80-28341\" class=\"text-[1.5em] w-[1.5em] h-[1.5em] flex justify-center  no-underline relative items-center text-white hover:scale-110 transform transition-all duration-200 ease-in-out bg-green   hover:bg-blue  rounded-full   \"  data-content='+49 241 80-28341'  data-content-type='phone'  data-copy='The number has been copied to your device clipboard.'  target=\"_self\">\n                    <span class='material-symbols-outlined -mt-2'> phone <\/span>\n                    <\/a>\n            <\/li>\n            <li>\n                    <a data-con-tap href=\"mailto:christoph.zekorn@ikv.rwth-aachen.de\" class=\"text-[1.5em] w-[1.5em] h-[1.5em] flex justify-center  no-underline relative items-center text-white hover:scale-110 transform transition-all duration-200 ease-in-out bg-green   hover:bg-blue  rounded-full   \"  data-content='christoph.zekorn@ikv.rwth-aachen.de'  data-content-type='mail'  target=\"_self\">\n                    <span class='material-symbols-outlined -mt-2'> mail <\/span>\n                    <\/a>\n            <\/li>\n                            <li>\n                        <a data-con-tap href=\"https:\/\/www.linkedin.com\/in\/christoph-zekorn-4b91a0220\/\" class=\"text-[1.5em] w-[1.5em] h-[1.5em] flex 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C10,12.8643566 12.8420573,10 16.349349,10 C19.8566406,10 22.6970052,12.8643566 22.6970052,16.3970067 C22.6970052,19.9296567 19.8566406,22.7940133 16.349349,22.7940133 Z M11.0325521,62 L21.769401,62 L21.769401,27.3333333 L11.0325521,27.3333333 L11.0325521,62 Z\" fill=\"white\" \/>\n    <\/g>\n<\/svg>\n            <\/a>\n                <\/li>\n                        <li>\n                    <a data-con-tap href=\"\/vcard\/?id=1594\" class=\"text-[1.5em] w-[1.5em] h-[1.5em] flex justify-center  no-underline relative items-center text-white hover:scale-110 transform transition-all duration-200 ease-in-out bg-green   hover:bg-blue  rounded-full   \"  data-content='\/vcard\/?id=1594'  download  target=\"_self\">\n                    <span class='material-symbols-outlined -mt-2'> download <\/span>\n                    <\/a>\n            <\/li>\n        <\/ul>\n    <\/article>\n\n            <\/div>\n        <\/div>\n    <\/div>\n<\/section>\n<a id=\"toc-marker-block_b8312a43b35a883fab444587c42a327d\" class=\"toc-marker -top-[--toc-height] \" name=\"Aufbiss-Schiene\" data-tocmarker=\"Aufbiss-Schiene\"><\/a>    <section id=\"headline-block_e3bbe6448d2fe96afadbdea611a4791c\" class=\"block-headline   bg-blue\">\n        <div class=\"theGridWrapper hyphens-auto\">\n            <div class=\"theGrid12\">\n                <div class=\"\n                col-span-10\n                col-start-2\n                xl:col-span-9\n                xl:col-start-3\n                text-4xl\npy-8\n                \">\n                    <div class=\"\n                    \">\n                        <h3 class=\" leading-none text-green \">\n                            Admission test                          <\/h3>\n                                                    <h3 class=\"pt-4 font-semibold  text-white  leading-none\">\n                                for therapeutic splint                            <\/h3>\n                                            <\/div>\n                <\/div>\n            <\/div>\n        <\/div>\n    <\/section>\n<section id=\"two-columns-block_5fca95de12f0e5088428f122d1a62484\" class=\"block-two-columns blocksection \">\n    <div class=\"theGridWrapper\">\n        <div class=\"theGrid12\">\n            <div class=\"wysiwyg\n            relative\n\n            col-start-1\n            col-span-12\n\n            md:col-start-3\n            md:col-span-9\n            md:gap-8\n\n            lg:col-start-3\n            lg:col-span-8\n\n            2xl:col-start-2\n            2xl:col-span-9\n\n            2xl:gap-[7rem]\n\n            sm:columns-2\n            hyphens-auto \n            sm:after:content-['\\00A0']\n            sm:after:block\n            sm:after:h-3xl\n            \">\n                <figure id=\"attachment_2904\" class=\"wp-caption alignleft\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-2904 size-large\" src=\"https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/09\/Zahnprotese-1-1-1536x864.png\" alt=\"\" width=\"1536\" height=\"864\" srcset=\"https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/09\/Zahnprotese-1-1-1536x864.png 1536w, https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/09\/Zahnprotese-1-1-748x421.png 748w, https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/09\/Zahnprotese-1-1-768x432.png 768w, https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/09\/Zahnprotese-1-1.png 1920w\" sizes=\"auto, (max-width: 1536px) 100vw, 1536px\" \/><figcaption class=\"wp-caption-text\">Reliability of plastic products in medical technology: case studies show how precise material testing can eliminate potential risks and ensure safety standards. <i>IKV<\/i><\/figcaption><\/figure>\n<h3>Problem: Mechanical investigations on a PMMA occlusal splint<\/h3>\n<p>For the sale of <b>therapeutic appliances<\/b> on the American market, medical products are subject to approval by the Food and Drug Administration (FDA).<\/p>\n<p>The bite splints are made of a <b>PMMA material<\/b>. The greatest danger with this product is that during sleep, crunching or awkward tilting can cause fractures and splinters that can lead to suffocation. Such <b>ambient conditions<\/b> of typically 37 \u00b0C at high humidity must be taken into account in the test setup for mechanical tests.<\/p>\n<p>To obtain approval, <b>mechanical tests<\/b> are carried out in accordance with the international standard ISO 20795-1 &#8220;Dentistry on denture base resins&#8221;. Another ISO requirement is a direct comparison with a product already approved on the market.<\/p>\n<h3>Analysis method: Determination of material properties according to ISO 20795-1<\/h3>\n<p>After preparing suitable test specimens by grinding and milling, the bending properties are tested in a temperature-controlled, aqueous environment (Fig. 2). The properties determined for the new bite splint are compared with the properties determined for the competitor&#8217;s product. <\/p>\n<hr>\n<h3>Result: Evaluation of the bending properties<\/h3>\n<p>Based on the bending stress\/strain diagrams determined in the bending test, the characteristic values of the flexural modulus and the flexural strength in water at 37 \u00b0C can be derived. Figure 3 shows a good match between two different PMMA bite splint batches and that the properties determined exceed those of the competitor&#8217;s product. <\/p>\n<figure id=\"attachment_2787\" class=\"wp-caption alignright\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-2787\" src=\"https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/09\/KAP-Praxisbeispiel-Medizintechnik-Zulassungspruefung-Aufbissschiene-Biegepruefung.jpg\" alt=\"\" width=\"300\" height=\"240\"><figcaption class=\"wp-caption-text\">Bending test in a tempered, aqueous environment on the component section <i>IKV<\/i><\/figcaption><\/figure>\n<p>Taking into account the standard specification of Efsoll = 2,000 MPa for the flexural modulus, all the bite splints tested were able to exceed the required stiffness. With regard to flexural strength, the behavior is comparable. With a flexural strength of \u03c3f = 100 MPa, the two PMMA materials can be rated as equal. Compared to the competitive product with \u03c3f \u2248 80 MPa and the standard specification of \u03c3fsoll \u2265 65 MPa, these are clearly exceeded.   <\/p>\n<figure id=\"attachment_2785\" class=\"wp-caption alignright\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-2785 size-full\" src=\"https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/09\/KAP-Praxisbeispiel-Medizintechnik-Zulassungspruefung-Aufbissschiene-Biegeeigenschaften.png\" alt=\"\" width=\"1382\" height=\"777\" srcset=\"https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/09\/KAP-Praxisbeispiel-Medizintechnik-Zulassungspruefung-Aufbissschiene-Biegeeigenschaften.png 1382w, https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/09\/KAP-Praxisbeispiel-Medizintechnik-Zulassungspruefung-Aufbissschiene-Biegeeigenschaften-748x421.png 748w, https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/09\/KAP-Praxisbeispiel-Medizintechnik-Zulassungspruefung-Aufbissschiene-Biegeeigenschaften-768x432.png 768w\" sizes=\"auto, (max-width: 1382px) 100vw, 1382px\" \/><figcaption class=\"wp-caption-text\">Bending properties of PMMA occlusal splints<\/figcaption><\/figure>\n<p>The comparison with standard specifications and already approved products enables a reliable assessment of the mechanical properties of the &#8220;new&#8221; bite splint.<\/p>\n<p>&nbsp;<\/p>\n    <article itemscope itemtype=\"http:\/\/schema.org\/Person\" class=\" border-t border-green border-dotted pt-base mt-base\">\n        <figure class=\" dn_no_select  rounded-full  w-[10em] h-auto object-cov overflow-hidden mb-base bigInMiddle\"><img decoding=\"async\"  class=\"dn-no-drag w-full h-auto object-cover\"  src=\"https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/12\/Christiane-Wintgens-Square-scaled.jpg\" srcset=\"https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/12\/Christiane-Wintgens-Square-scaled.jpg 2560w, https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/12\/Christiane-Wintgens-Square-748x748.jpg 748w, https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/12\/Christiane-Wintgens-Square-1536x1536.jpg 1536w, https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/12\/Christiane-Wintgens-Square-335x335.jpg 335w, https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/12\/Christiane-Wintgens-Square-768x768.jpg 768w, https:\/\/ikv-aachen.de\/wp-content\/uploads\/2024\/12\/Christiane-Wintgens-Square-2048x2048.jpg 2048w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" width=\"2560\" height=\"2560\" alt=\"Christiane-Wintgens-Square\" loading=\"lazy\" \/><\/figure>        <h2 itemprop='name' class=\"font-bold\">\n            Dipl.-Ing. (FH) Christiane Wintgens        <\/h2>\n                    <p itemprop='jobTitle' class=\"\">\n                Acting Head of Lab<br>dynamic testing            <\/p>\n                            <div>\n                <h3 class=\"mt-2xs\">Kontakt:<\/h3>\n                <p>\n                    <span itemprop=\"telephone\">+49 241 80-28342<\/span><br>\n                <\/p>\n                <a href=\"mailto:christiane.wintgens@ikv.rwth-aachen.de\" itemprop=\"email\">christiane.wintgens@ikv.rwth-aachen.de<\/a>\n            <\/div>\n                <ul class=\"flex gap-xs mt-xs\">\n            <li>\n                    <a data-con-tap href=\"tel:+49 241 80-28342\" class=\"text-[1.5em] w-[1.5em] h-[1.5em] flex justify-center  no-underline relative items-center text-white hover:scale-110 transform transition-all duration-200 ease-in-out bg-green   hover:bg-blue  rounded-full   \"  data-content='+49 241 80-28342'  data-content-type='phone'  data-copy='The number has been copied to your device clipboard.'  target=\"_self\">\n                    <span class='material-symbols-outlined -mt-2'> phone <\/span>\n                    <\/a>\n            <\/li>\n            <li>\n                    <a data-con-tap href=\"mailto:christiane.wintgens@ikv.rwth-aachen.de\" class=\"text-[1.5em] w-[1.5em] h-[1.5em] flex justify-center  no-underline relative items-center text-white hover:scale-110 transform transition-all duration-200 ease-in-out bg-green   hover:bg-blue  rounded-full   \"  data-content='christiane.wintgens@ikv.rwth-aachen.de'  data-content-type='mail'  target=\"_self\">\n                    <span class='material-symbols-outlined -mt-2'> mail <\/span>\n                    <\/a>\n            <\/li>\n                        <li>\n                    <a data-con-tap href=\"\/vcard\/?id=1567\" class=\"text-[1.5em] w-[1.5em] h-[1.5em] flex justify-center  no-underline relative items-center text-white hover:scale-110 transform transition-all duration-200 ease-in-out bg-green   hover:bg-blue  rounded-full   \"  data-content='\/vcard\/?id=1567'  download  target=\"_self\">\n                    <span class='material-symbols-outlined -mt-2'> download <\/span>\n                    <\/a>\n            <\/li>\n        <\/ul>\n    <\/article>\n\n            <\/div>\n        <\/div>\n    <\/div>\n<\/section>","protected":false},"excerpt":{"rendered":"<p>Reliability of plastic products in medical technology: case studies show how precise material testing can eliminate potential risks and ensure safety standards.<\/p>\n","protected":false},"author":3,"featured_media":3192,"parent":5775,"menu_order":30,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-5778","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Practical examples: Medical technology | IKV-Aachen<\/title>\n<meta name=\"description\" content=\"Discover the methodology we use at KAP. 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