{"id":1478,"date":"2026-03-23T15:47:16","date_gmt":"2026-03-23T07:47:16","guid":{"rendered":"https:\/\/www.puncturetest.com\/?p=1478"},"modified":"2026-03-23T15:47:17","modified_gmt":"2026-03-23T07:47:17","slug":"drag-force-test","status":"publish","type":"post","link":"https:\/\/www.puncturetest.com\/cs\/drag-force-test\/","title":{"rendered":"Zkou\u0161ka propustnosti: Vysv\u011btlen\u00ed zkou\u0161ky s\u00edly pronik\u00e1n\u00ed jehly a odporov\u00e9 s\u00edly podle normy ISO 7864"},"content":{"rendered":"

Na str\u00e1nk\u00e1ch zkou\u0161ka propustnosti<\/strong> je kl\u00ed\u010dov\u00e1 metoda pou\u017e\u00edvan\u00e1 k hodnocen\u00ed v\u00fdkonu jehel z hlediska jejich schopnosti proniknout do r\u016fzn\u00fdch materi\u00e1l\u016f. V odv\u011btv\u00edch, jako je v\u00fdroba zdravotnick\u00fdch prost\u0159edk\u016f, balen\u00ed a zkou\u0161en\u00ed materi\u00e1l\u016f, m\u016f\u017ee pochopen\u00ed s\u00edly pot\u0159ebn\u00e9 k proniknut\u00ed jehly v\u00fdznamn\u011b ovlivnit konstrukci v\u00fdrobku a kontrolu kvality. Tento \u010dl\u00e1nek se zab\u00fdv\u00e1 zkou\u0161ka s\u00edly vpichu jehly<\/strong>... zkou\u0161ka odporu tahem<\/strong>, a normy stanoven\u00e9 ISO 7864<\/strong> s c\u00edlem pomoci odborn\u00edk\u016fm posoudit a zajistit spolehlivost v\u00fdrobk\u016f ur\u010den\u00fdch k pou\u017eit\u00ed s jehlami.<\/p>\n\n\n\n

Porozum\u011bn\u00ed testu propustnosti<\/h2>\n\n\n\n

A zkou\u0161ka propustnosti<\/strong> vyhodnocuje, jak velk\u00e1 s\u00edla je zapot\u0159eb\u00ed k tomu, aby jehla pronikla do materi\u00e1lu. Tento typ zkou\u0161ky je obzvl\u00e1\u0161t\u011b d\u016fle\u017eit\u00fd pro zaji\u0161t\u011bn\u00ed toho, aby jehly, jako jsou nap\u0159\u00edklad injek\u010dn\u00ed jehly, byly navr\u017eeny tak, aby snadno pronikaly do tk\u00e1n\u00ed \u010di jin\u00fdch materi\u00e1l\u016f, ani\u017e by p\u0159itom vy\u017eadovaly nadm\u011brnou s\u00edlu nebo zp\u016fsobovaly po\u0161kozen\u00ed. Pr\u016fb\u011bh s\u00edly b\u011bhem pronik\u00e1n\u00ed pom\u00e1h\u00e1 posoudit jak po\u010d\u00e1te\u010dn\u00ed odpor (pronikac\u00ed s\u00edla), tak t\u0159ec\u00ed odpor (brzdn\u00e1 s\u00edla), s nimi\u017e se jehla setk\u00e1v\u00e1 p\u0159i pohybu materi\u00e1lem.<\/p>\n\n\n\n

Aby byly v\u00fdsledky p\u0159esn\u00e9 a srovnateln\u00fdch, mus\u00ed b\u00fdt tento test prov\u00e1d\u011bn za kontrolovan\u00fdch podm\u00ednek s pou\u017eit\u00edm standardn\u00edch podklad\u016f a p\u0159esn\u00fdch p\u0159\u00edstroj\u016f pro m\u011b\u0159en\u00ed sil v r\u016fzn\u00fdch f\u00e1z\u00edch pronik\u00e1n\u00ed.<\/p>\n\n\n\n

\"Zkou\u0161ka<\/a><\/figure>\n\n\n\n

Zkou\u0161ka s\u00edly pronik\u00e1n\u00ed jehlou<\/h2>\n\n\n\n

Na str\u00e1nk\u00e1ch zkou\u0161ka s\u00edly vpichu jehly<\/strong> slou\u017e\u00ed k m\u011b\u0159en\u00ed s\u00edly pot\u0159ebn\u00e9 k vp\u00edchnut\u00ed jehly do stanoven\u00e9ho podkladu. Tato zkou\u0161ka je obzvl\u00e1\u0161t\u011b d\u016fle\u017eit\u00e1 pro odv\u011btv\u00ed zab\u00fdvaj\u00edc\u00ed se v\u00fdrobky vyu\u017e\u00edvaj\u00edc\u00edmi jehly, jako jsou injek\u010dn\u00ed st\u0159\u00edka\u010dky, zdravotnick\u00e9 prost\u0159edky a injek\u010dn\u00ed syst\u00e9my.<\/p>\n\n\n\n

    \n
  • Po\u010d\u00e1te\u010dn\u00ed pr\u016fnikov\u00e1 s\u00edla<\/strong>: S\u00edla pot\u0159ebn\u00e1 k zah\u00e1jen\u00ed pronik\u00e1n\u00ed jehly do podkladu.<\/li>\n\n\n\n
  • T\u0159ec\u00ed s\u00edla<\/strong>: T\u0159ec\u00ed s\u00edla, kter\u00e1 p\u016fsob\u00ed na jehlu p\u0159i jej\u00edm pohybu podkladem.<\/li>\n<\/ul>\n\n\n\n

    Zkou\u0161ka se obvykle prov\u00e1d\u00ed p\u0159i standardn\u00ed rychlosti 100 mm\/min, jak je doporu\u010deno v ISO 7864<\/strong>. Na str\u00e1nk\u00e1ch . NPD-01 \u2013 P\u0159\u00edstroj pro m\u011b\u0159en\u00ed s\u00edly pronik\u00e1n\u00ed a odporu jehly<\/strong> je ide\u00e1ln\u00edm n\u00e1strojem pro proveden\u00ed tohoto testu, nebo\u0165 umo\u017e\u0148uje p\u0159esn\u00e9 m\u011b\u0159en\u00ed s\u00edly jak ve f\u00e1zi zav\u00e1d\u011bn\u00ed, tak ve f\u00e1zi vytahov\u00e1n\u00ed.<\/p>\n\n\n\n

    \u00daloha normy ISO 7864 p\u0159i zkou\u0161k\u00e1ch penetrace jehlou<\/h2>\n\n\n\n

    ISO 7864<\/strong> stanov\u00ed normativn\u00ed po\u017eadavky a zku\u0161ebn\u00ed metody pro steriln\u00ed injek\u010dn\u00ed jehly ur\u010den\u00e9 k jednor\u00e1zov\u00e9mu pou\u017eit\u00ed. Norma specifikuje postupy pro m\u011b\u0159en\u00ed penetra\u010dn\u00ed s\u00edly a odporov\u00e9 s\u00edly a poskytuje r\u00e1mec pro hodnocen\u00ed vlastnost\u00ed jehel z hlediska jejich pevnosti i plynulosti p\u0159i vpichu.<\/p>\n\n\n\n

    Podle ISO 7864<\/strong>, zku\u0161ebn\u00ed za\u0159\u00edzen\u00ed zahrnuje:<\/p>\n\n\n\n

      \n
    • P\u0159\u00edstroj pro m\u011b\u0159en\u00ed s\u00edly<\/strong>: Sn\u00edma\u010d s\u00edly pro m\u011b\u0159en\u00ed s\u00edly v r\u016fzn\u00fdch f\u00e1z\u00edch pronik\u00e1n\u00ed jehly.<\/li>\n\n\n\n
    • Dr\u017e\u00e1k substr\u00e1tu<\/strong>: Za\u0159\u00edzen\u00ed pro uchycen\u00ed testovan\u00e9ho substr\u00e1tu, kter\u00e9 zaji\u0161\u0165uje konzistenci a stabilitu b\u011bhem testov\u00e1n\u00ed.<\/li>\n\n\n\n
    • Rychlost zav\u00e1d\u011bn\u00ed jehly<\/strong>: Pro standardn\u00ed penetra\u010dn\u00ed zkou\u0161ky se obvykle nastavuje na 100 mm\/min.<\/li>\n<\/ul>\n\n\n\n

      Norma rovn\u011b\u017e uv\u00e1d\u00ed typy podklad\u016f vhodn\u00fdch pro zkou\u0161en\u00ed, jako je latexov\u00e1 guma, polyuretan a silikon, z nich\u017e ka\u017ed\u00fd vykazuje odli\u0161nou \u00farove\u0148 odolnosti a t\u0159ec\u00edch sil.<\/p>\n\n\n\n

      Zku\u0161ebn\u00ed metoda pro penetra\u010dn\u00ed zkou\u0161ku jehlou<\/h2>\n\n\n\n

      Na str\u00e1nk\u00e1ch metoda penetra\u010dn\u00ed zkou\u0161ky jehlou<\/strong> spo\u010d\u00edv\u00e1 v zasunut\u00ed jehly do substr\u00e1tu konstantn\u00ed rychlost\u00ed a sou\u010dasn\u00e9m m\u011b\u0159en\u00ed s\u00edly p\u016fsob\u00edc\u00ed v r\u016fzn\u00fdch bodech po cel\u00e9 d\u00e9lce dr\u00e1hy. Tento proces obvykle zahrnuje n\u00e1sleduj\u00edc\u00ed kroky:<\/p>\n\n\n\n

        \n
      1. P\u0159\u00edprava vzork\u016f<\/strong>: Jehla i podklad se p\u0159ipravuj\u00ed za standardn\u00edch okoln\u00edch podm\u00ednek, p\u0159i\u010dem\u017e se db\u00e1 na to, aby neobsahovaly \u017e\u00e1dn\u00e9 vady ani ne\u010distoty, kter\u00e9 by mohly ovlivnit v\u00fdsledky.<\/li>\n\n\n\n
      2. Zaveden\u00ed jehly<\/strong>: Jehla je upevn\u011bna v za\u0159\u00edzen\u00ed pro m\u011b\u0159en\u00ed s\u00edly a zasouv\u00e1na do substr\u00e1tu p\u0159edem stanovenou rychlost\u00ed.<\/li>\n\n\n\n
      3. M\u011b\u0159en\u00ed s\u00edly<\/strong>: Test m\u011b\u0159\u00ed \u0161pi\u010dkov\u00e1 penetra\u010dn\u00ed s\u00edla<\/strong> (maxim\u00e1ln\u00ed s\u00edla pot\u0159ebn\u00e1 k po\u010d\u00e1te\u010dn\u00edmu proniknut\u00ed) a ta\u017en\u00e1 s\u00edla<\/strong> (s\u00edla pot\u0159ebn\u00e1 k udr\u017een\u00ed pohybu v podkladu).<\/li>\n\n\n\n
      4. Anal\u00fdza dat<\/strong>: Profil s\u00edly se zaznamen\u00e1v\u00e1 a analyzuje za \u00fa\u010delem v\u00fdpo\u010dtu pr\u016fm\u011brn\u00e9 odporov\u00e9 s\u00edly a maxim\u00e1ln\u00ed penetra\u010dn\u00ed s\u00edly.<\/li>\n<\/ol>\n\n\n\n

        Tyto hodnoty jsou z\u00e1sadn\u00ed pro posouzen\u00ed kvality v\u00fdrobk\u016f vyu\u017e\u00edvaj\u00edc\u00edch jehly a pro zaji\u0161t\u011bn\u00ed jejich spr\u00e1vn\u00e9 funkce v re\u00e1ln\u00fdch podm\u00ednk\u00e1ch.<\/p>\n\n\n\n

        Zkou\u0161ka odporov\u00e9 s\u00edly<\/h2>\n\n\n\n

        Na str\u00e1nk\u00e1ch zkou\u0161ka odporu tahem<\/strong> je zam\u011b\u0159eno konkr\u00e9tn\u011b na m\u011b\u0159en\u00ed t\u0159ec\u00edho odporu, kter\u00e9mu je jehla vystavena p\u0159i pohybu podlo\u017ekou. Tato s\u00edla je d\u016fle\u017eit\u00e1 pro pochopen\u00ed toho, jak snadno se jehla pohybuje po po\u010d\u00e1te\u010dn\u00edm proniknut\u00ed.<\/p>\n\n\n\n

        T\u0159ec\u00ed s\u00edla hraje obzvl\u00e1\u0161t\u011b d\u016fle\u017eitou roli p\u0159i posuzov\u00e1n\u00ed pohodl\u00ed a snadnosti pou\u017eit\u00ed jehel v l\u00e9ka\u0159sk\u00fdch aplikac\u00edch. Vysok\u00e9 t\u0159ec\u00ed s\u00edly mohou zt\u011b\u017eovat zav\u00e1d\u011bn\u00ed jehel, co\u017e m\u016f\u017ee v\u00e9st k nepohodl\u00ed pacienta nebo ke zv\u00fd\u0161en\u00e9mu riziku komplikac\u00ed. Porozum\u011bn\u00ed a optimalizace t\u0159ec\u00ed s\u00edly pom\u00e1h\u00e1 v\u00fdrobc\u016fm vytv\u00e1\u0159et efektivn\u011bj\u0161\u00ed a pohodln\u011bj\u0161\u00ed konstrukce jehel.<\/p>\n\n\n\n

        Za\u0159\u00edzen\u00ed pro zkou\u0161ky pronik\u00e1n\u00ed jehly a ta\u017en\u00e9 s\u00edly<\/h2>\n\n\n\n

        Na str\u00e1nk\u00e1ch NPD-01 \u2013 P\u0159\u00edstroj pro m\u011b\u0159en\u00ed s\u00edly pronik\u00e1n\u00ed a odporu jehly<\/strong> z Cell Instruments<\/strong> je speci\u00e1ln\u011b navr\u017een k prov\u00e1d\u011bn\u00ed testy pronik\u00e1n\u00ed jehlou<\/strong> a zkou\u0161ky odporu ta\u017en\u00e9 s\u00edly<\/strong>. Tento p\u0159esn\u00fd p\u0159\u00edstroj je vybaven pokro\u010dil\u00fdmi funkcemi, jako jsou:<\/p>\n\n\n\n

          \n
        • M\u011b\u0159en\u00ed pomoc\u00ed tenzometrick\u00e9ho sn\u00edma\u010de<\/strong>: Poskytuje p\u0159esn\u00e9 \u00fadaje o s\u00edle, a to jak p\u0159i po\u010d\u00e1te\u010dn\u00edm pronik\u00e1n\u00ed, tak p\u0159i odporov\u00e9 s\u00edle.<\/li>\n\n\n\n
        • Nastaviteln\u00e1 rychlost testu<\/strong>: Podporuje r\u016fzn\u00e9 rychlosti testov\u00e1n\u00ed, aby vyhovoval r\u016fzn\u00fdm testovac\u00edm norm\u00e1m, v\u010detn\u011b normy ISO 7864.<\/li>\n\n\n\n
        • Kompatibilita s v\u00edce typy podklad\u016f<\/strong>: Lze jej pou\u017e\u00edt s celou \u0159adou podklad\u016f, jako je latexov\u00e1 guma, polyuretan a silikon, co\u017e zaji\u0161\u0165uje v\u0161estrannost p\u0159i testov\u00e1n\u00ed.<\/li>\n<\/ul>\n\n\n\n

          Pou\u017eit\u00edm NPD-01 \u2013 P\u0159\u00edstroj pro m\u011b\u0159en\u00ed s\u00edly pronik\u00e1n\u00ed a odporu jehly<\/strong>, mohou v\u00fdrobci zajistit, aby jejich v\u00fdrobky spl\u0148ovaly mezin\u00e1rodn\u00ed normy a poskytovaly spolehliv\u00fd, pohodln\u00fd a \u00fa\u010dinn\u00fd v\u00fdkon.<\/p>\n\n\n\n

          Z\u00e1v\u011br<\/h2>\n\n\n\n

          Na str\u00e1nk\u00e1ch zkou\u0161ka propustnosti<\/strong> je nezbytn\u00fdm postupem pro hodnocen\u00ed v\u00fdkonnosti jehel v r\u016fzn\u00fdch oblastech pou\u017eit\u00ed, od zdravotnick\u00fdch prost\u0159edk\u016f a\u017e po obaly. M\u011b\u0159en\u00edm jak s\u00edla pr\u016fniku jehly<\/strong> a ta\u017en\u00e1 s\u00edla<\/strong>, tento test poskytuje cenn\u00e9 \u00fadaje o mechanick\u00fdch vlastnostech jehel a jejich interakci s r\u016fzn\u00fdmi podklady.<\/p>\n\n\n\n

          ISO 7864<\/strong> stanovuje standardy pro prov\u00e1d\u011bn\u00ed t\u011bchto test\u016f a zaji\u0161\u0165uje tak jednotnost a spolehlivost v r\u00e1mci cel\u00e9ho odv\u011btv\u00ed. Tato NPD-01 \u2013 P\u0159\u00edstroj pro m\u011b\u0159en\u00ed s\u00edly pronik\u00e1n\u00ed a odporu jehly<\/strong> nab\u00edz\u00ed spolehliv\u00e9 \u0159e\u0161en\u00ed pro prov\u00e1d\u011bn\u00ed t\u011bchto test\u016f s vysokou p\u0159esnost\u00ed, \u010d\u00edm\u017e pom\u00e1h\u00e1 v\u00fdrobc\u016fm spl\u0148ovat normy kontroly kvality a vyr\u00e1b\u011bt \u0161pi\u010dkov\u00e9 v\u00fdrobky na b\u00e1zi jehel.<\/p>\n\n\n\n

          Pro p\u0159esn\u011bj\u0161\u00ed a spolehliv\u011bj\u0161\u00ed testov\u00e1n\u00ed pronik\u00e1n\u00ed jehlou<\/strong>, Cell Instruments<\/strong> nab\u00edz\u00ed nejmodern\u011bj\u0161\u00ed testovac\u00ed za\u0159\u00edzen\u00ed p\u0159izp\u016fsoben\u00e9 po\u017eadavk\u016fm dan\u00e9ho odv\u011btv\u00ed. Zajist\u011bte kvalitu a v\u00fdkonnost sv\u00fdch jehlov\u00fdch v\u00fdrobk\u016f d\u00edky na\u0161im pokro\u010dil\u00fdm P\u0159\u00edstroje pro zkou\u0161en\u00ed penetrace jehlou a odporov\u00e9 s\u00edly<\/strong>.<\/p>\n\n\n\n


          Zajist\u011bte kvalitu sv\u00fdch v\u00fdrobk\u016f na b\u00e1zi jehel pomoc\u00ed NPD-01 \u2013 P\u0159\u00edstroj pro m\u011b\u0159en\u00ed s\u00edly pronik\u00e1n\u00ed a odporu jehly<\/strong>. Kontakt Cell Instruments<\/strong> je\u0161t\u011b dnes a dozv\u00edte se v\u00edce o tom, jak v\u00e1m na\u0161e pokro\u010dil\u00e1 testovac\u00ed \u0159e\u0161en\u00ed mohou pomoci splnit ISO 7864<\/strong> normy a zlep\u0161it v\u00fdkonnost va\u0161ich v\u00fdrobk\u016f.<\/p>","protected":false},"excerpt":{"rendered":"

          Zkou\u0161ka pronikavosti je kl\u00ed\u010dovou metodou pou\u017e\u00edvanou k hodnocen\u00ed v\u00fdkonu jehel z hlediska jejich schopnosti proniknout do r\u016fzn\u00fdch podklad\u016f. V odv\u011btv\u00edch, jako je v\u00fdroba zdravotnick\u00fdch prost\u0159edk\u016f, balen\u00ed a zkou\u0161en\u00ed materi\u00e1l\u016f, m\u016f\u017ee pochopen\u00ed s\u00edly pot\u0159ebn\u00e9 k proniknut\u00ed jehly v\u00fdznamn\u011b ovlivnit konstrukci v\u00fdrobku a kontrolu kvality. Tento \u010dl\u00e1nek se zab\u00fdv\u00e1 pronikavost\u00ed jehel [\u2026]<\/p>","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1478","post","type-post","status-publish","format-standard","hentry","category-softgel-test"],"yoast_head":"\nTest for Penetrability Needle Penetration Force and Drag Force Test with ISO 7864<\/title>\n<meta name=\"description\" content=\"Explore the test for penetrability and its importance in evaluating needle performance. Learn about the needle penetration force test, drag force test, and ISO 7864 standards for precise force measurement in substrate penetration.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.puncturetest.com\/cs\/drag-force-test\/\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Test for Penetrability Needle Penetration Force and Drag Force Test with ISO 7864\" \/>\n<meta property=\"og:description\" content=\"Explore the test for penetrability and its importance in evaluating needle performance. 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