Objev v\u011bdc\u016f z Vysok\u00e9 \u0161koly chemicko-technologick\u00e9 v Praze (V\u0160CHT) by mohl zjednodu\u0161it a zkr\u00e1tit v\u00fdrobu stent\u016f, tedy zdravotnick\u00fdch prost\u0159edk\u016f pou\u017e\u00edvan\u00fdch ke zpr\u016fchodn\u011bn\u00ed c\u00e9v \u010di \u010d\u00e1st\u00ed tr\u00e1vic\u00edho traktu. \u010cTK dnes o tom informoval mluv\u010d\u00ed V\u0160CHT Michal Janovsk\u00fd. \u0160kola chce sv\u016fj objev nab\u00eddnout firm\u00e1m.
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Stenty se v praxi pou\u017e\u00edvaj\u00ed nap\u0159\u00edklad ke zpr\u016fchodn\u011bn\u00ed t\u011bln\u00edch trubic, nap\u0159\u00edklad \u010d\u00e1st\u00ed tr\u00e1vic\u00edho syst\u00e9mu, rovn\u011b\u017e v c\u00e9v\u00e1ch \u010di mo\u010dov\u00fdch trubic\u00edch. Jejich v\u00fdroba je pom\u011brn\u011b n\u00e1ro\u010dn\u00e1. Podle Pavla Nov\u00e1ka z \u00dastavu kovov\u00fdch materi\u00e1l\u016f a korozn\u00edho in\u017een\u00fdrstv\u00ed V\u0160CHT se nejprve v ochrann\u00e9 atmosf\u00e9\u0159e odlije ingot slitiny, tedy polotovar obvykle ve tvaru hranolu. Z n\u011bj se vyrob\u00ed dr\u00e1tek, kter\u00fd se spl\u00e9t\u00e1 do podoby trubice. Dohromady je to podle Nov\u00e1ka pr\u00e1ce zhruba na deset hodin. Nov\u00e1 technologie, kterou Nov\u00e1k spole\u010dn\u011b se sv\u00fdm kolegou Pavlem Salvetrem vyvinuli, by m\u011bla dobu v\u00fdroby sn\u00ed\u017eit na t\u0159etinu, co\u017e by mohlo znamenat i v\u00fdraznou finan\u010dn\u00ed \u00fasporu.<\/p>\n
Objevu pomohla n\u00e1hoda, kdy se v\u011bdci ne\u00fasp\u011b\u0161n\u011b pokou\u0161eli pro pot\u0159eby testov\u00e1n\u00ed mechanick\u00fdch vlastnost\u00ed ve vakuu vyrobit slitinu nitinol. V\u00e1le\u010dek tvo\u0159en\u00fd slisovanou sm\u011bs\u00ed pr\u00e1\u0161k\u016f niklu a titanu uzav\u0159en\u00fd do zkumavky se po zah\u0159\u00e1t\u00ed na ur\u010ditou teplotu za\u010dal chovat neo\u010dek\u00e1van\u011b. Exploze roznesla slitinu po st\u011bn\u00e1ch trubice, kde rychle ztuhla a vytvo\u0159ila pravidelnou trubku.<\/p>\n
„Chv\u00edli jsme na sebe s kolegou vrhali p\u0159ekvapiv\u00e9 pohledy, ale po dal\u0161\u00edch anal\u00fdz\u00e1ch n\u00e1m bylo jasn\u00e9, \u017ee m\u00e1me v ruce n\u011bco, co se doposud vyr\u00e1b\u011blo extr\u00e9mn\u011b slo\u017eit\u011b,“ uvedl Nov\u00e1k. „Pokra\u010dovali jsme v dal\u0161\u00edch experimentech za upraven\u00fdch podm\u00ednek i pom\u011bru pr\u00e1\u0161k\u016f, a\u017e jsme dostali slitinu ve tvaru trubky, kter\u00e1 m\u016f\u017ee slou\u017eit k velmi jednoduch\u00e9 v\u00fdrob\u011b l\u00e9ka\u0159sk\u00fdch stent\u016f prost\u0159ednictv\u00edm laserov\u00e9ho opracov\u00e1n\u00ed,“ dodal.<\/p>\n
V\u011bdci o\u010dek\u00e1vaj\u00ed, \u017ee pr\u016fmyslov\u00e1 sf\u00e9ra bude m\u00edt o tento objev z\u00e1jem. „Chyst\u00e1m se s\u00e1m oslovit podniky a vysv\u011btlit jim p\u0159ednosti nov\u00e9 technologie,“ uvedl Nov\u00e1k. Krom\u011b stent\u016f lze technologii podle n\u011bj vyu\u017e\u00edt tak\u00e9 p\u0159i v\u00fdrob\u011b r\u016fzn\u00fdch tepeln\u00fdch sp\u00edna\u010d\u016f nebo jisti\u010d\u016f a v robotice.<\/p>\n","protected":false},"excerpt":{"rendered":"
Objev v\u011bdc\u016f z Vysok\u00e9 \u0161koly chemicko-technologick\u00e9 v Praze (V\u0160CHT) by mohl zjednodu\u0161it a zkr\u00e1tit v\u00fdrobu stent\u016f, tedy zdravotnick\u00fdch prost\u0159edk\u016f pou\u017e\u00edvan\u00fdch ke zpr\u016fchodn\u011bn\u00ed c\u00e9v \u010di \u010d\u00e1st\u00ed […]<\/a><\/p>\n<\/div>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[],"class_list":["post-27382","post","type-post","status-publish","format-standard","hentry","category-zpravy"],"_links":{"self":[{"href":"https:\/\/www.invarena.cz\/index.php?rest_route=\/wp\/v2\/posts\/27382","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.invarena.cz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.invarena.cz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.invarena.cz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.invarena.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=27382"}],"version-history":[{"count":0,"href":"https:\/\/www.invarena.cz\/index.php?rest_route=\/wp\/v2\/posts\/27382\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.invarena.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=27382"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.invarena.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=27382"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.invarena.cz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=27382"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}