Kwiteknoloji yezonyango yanamhlanje ephucuka ngokukhawuleza, izinto zepolymer ezibizwa ngokubai-thermoplastic polyurethane (TPU)ivuselela uguquko ngokuthe cwaka. Ifilimu yeTPU kaYantai Linghua New Material Co., Ltd.Iba yinto ebalulekileyo efunekayo ekuvelisweni kwezixhobo zonyango ezikumgangatho ophezulu ngenxa yokusebenza kwayo okugqwesileyo kunye nokuhambelana kwayo nezinto eziphilayo. Ubukho bayo bufumaneka kuyo yonke indawo, ukusuka kwiingxowa zemveli zokufaka amanzi ukuya kwizixhobo zempilo ezisemgangathweni ophezulu.
1) Uphawu oluphambili: Kutheni imboni yezonyango ikhetha i-TPU?
Ifilimu yeTPUayisiyofilimu yeplastiki eqhelekileyo. Idibanisa ukuthamba kwerabha kunye namandla eplastiki, inika ukuguquguquka okungazange kubonwe ngaphambili kuyilo lwezixhobo zonyango.
-Ukuhambelana kakuhle kwezinto eziphilayo kunye nokhuseleko: I-TPU yodidi lwezonyango inamathela ngokungqongqo kwimigangatho yokuhambelana kwezinto eziphilayo efana ne-ISO 10993, iqinisekisa ukuba akukho mvakalelo okanye iimpendulo ezingenabungozi xa zidibana nezicubu zomntu okanye igazi, nto leyo enciphisa kakhulu umngcipheko wesigulana.
-Ukusebenza kakuhle koomatshini: Ifilimu yeTPU inamandla aphezulu okutsalwa (ngesiqhelo i>30 MPa), inobude obuphezulu kakhulu xa ikhefu (>500%), kwaye inokumelana kakuhle nokukrazula (>30 kN/m), nto leyo eyenza isixhobo sihlale ixesha elide kwaye sikwazi ukumelana nokutsalwa, ukugoba, kunye nokucinezelwa ngokuphindaphindiweyo ngaphandle komonakalo.
-Ukufuma kunye nokuvuleka komoya: Iimpawu zefilimu yeTPU ezinemingxuma okanye ezihlala emanzini zivumela umphunga wamanzi ukuba udlule ngokukhululekileyo ngelixa uvimba amanzi kunye neebhaktheriya. Oku kubalulekile kwiibhandeji zamanxeba kunye neempahla zokukhusela ngotyando, ezinokugcina ulusu lomile, zikhuthaze ukuphiliswa, kwaye zonyuse intuthuzelo yabasebenzi bezonyango.
-Ukuchukumisa okuthambileyo nokungafihlisi nto: Ifilimu yeTPU inobume obuthambileyo, inika ukulingana okukhululekileyo nokungenamthungo emzimbeni womntu; Ukucaca kwayo okuphezulu kwenza kube lula kubasebenzi bezonyango ukuba bajonge inkqubo yokufakwa okanye ukuphiliswa kwenxeba.
-Ukungasebenzi kakuhle kwe-sterilizability: Ifilimu ye-TPU inokumelana neendlela ezahlukeneyo zokubulala iintsholongwane, kubandakanya i-ethylene oxide (EO), imisebe ye-gamma, kunye nemisebe ye-electron, ukuqinisekisa ukungasebenzi kakuhle kunye nokhuseleko lweemveliso zokugqibela.
2) Imeko yesicelo: Ukusuka ekubeni ngumgcini “ongabonakaliyo” ukuya kwingqwalaselo yobukrelekrele
Ezi mpawu zeIfilimu yeTPUyenze ikhanye kwicandelo lezonyango:
-Inkqubo yokungenisa amayeza kunye nokuhambisa: Njengezinto ezingaphakathi nangaphandle zeengxowa zokungenisa amayeza eziphezulu, iingxowa zesondlo, kunye neengxowa ze-peritoneal dialysis, ukuguquguquka kwe-TPU kunye nokumelana nokugudla kuqinisekisa uzinzo lwesisombululo samayeza ngexesha lokuthuthwa nokusetyenziswa, kwaye ukucaca kwayo kwenza kube lula ukujonga umgangatho wolwelo.
-Ukhathalelo kunye nokubotshwa kwamanxeba: Iibotshwa ezintsha ezingangeni manzi neziphefumlayo kunye neenkqubo zonyango olune-pressure wound therapy (NPWT) zisebenzisa kakhulu ifilimu yeTPU. Ingahlula kakuhle ungcoliseko lwangaphandle kwaye ikhuphe umswakama kwinxeba, idale indawo efanelekileyo yokuphiliswa kwamanxeba.
-Iimveliso zokukhusela utyando: ezisetyenziselwa ukwenza iileya eziphefumlayo nezibulala iintsholongwane kwiingubo zotyando, iilokhwe zokwahlukanisa, kunye neempahla zokukhusela, zibonelela ngokhuseleko olubalulekileyo ngelixa kusonjululwa iindawo ezibuhlungu zeemveliso zelaphu zesintu ezingalukwanga ezixineneyo nezingonwabisiyo.
-Izixhobo zonyango ezintsha: Ifilimu yeTPU ibe yinxalenye ebalulekileyo kwizixhobo zokungenelela ezifana nee-catheter zebhaluni zamayeza kunye nezixhobo zoncedo lwentliziyo yokwenziwa ngenxa yokuhambelana kwayo kakuhle kwegazi kunye nokuguquguquka. Ukongeza, kwizixhobo zonyango ezinxitywayo ezifana nee-smart patches, ifilimu yeTPU isebenza njengesiseko esidibana ngqo nolusu, iqinisekisa intuthuzelo kunye nokuthembeka kwexesha elide kwesixhobo.
3) Isiseko somgangatho: iiparameter eziphambili kunye nemigangatho yovavanyo
Ukuqinisekisa ukuba yonke ibhetshi yefilimu yeTPU iyahlangabezana neemfuno ezingqongqo zonyango, sibhekisa kuluhlu lwemigangatho yamazwe ngamazwe eyakha isiseko somgangatho wayo:
-Iimpawu zoomatshini:
Amandla okutsalwa kunye nokwandiswa ngexesha lokuphumla: I-ASTM D412 esetyenziswa rhoqo iqinisekisa ukuba ifilimu inamandla aneleyo kunye nokuthamba.
Amandla okukrazula: I-ASTM D624 esemgangathweni esetyenziswa rhoqo ilinganisa amandla ayo okumelana nokukrazula.
-Ukuhambelana kwezinto eziphilayo: Kufuneka uphumelele uvavanyo oluqhelekileyo lwe-ISO 10993, oluyimfuneko eyimfuneko ukuze ufumane imvume yokuthengisa izixhobo zonyango.
-Ukusebenza kweMiqobo:
Izinga lokuHanjiswa koMphunga (WVTR): Imigangatho efana ne-ASTM E96 ilinganisa ukuvunyelwa komphunga wamanzi, kunye namaxabiso aphezulu abonisa ukuvunyelwa komoya okungcono.
Iimpawu zokuthintela ulwelo: imigangatho efana ne-ASTM F1670/F1671 (esetyenziselwa ukuvavanya ukumelana nokungena kwegazi elenziweyo kunye nentsholongwane).
-Iimpawu zomzimba:
Ukuqina: I-ASTM D2240 (ubulukhuni baselunxwemeni) isetyenziswa rhoqo, kwaye i-TPU yodidi lwezonyango idla ngokuba phakathi kwe-60A kunye ne-90A ukuze ihlale iguquguquka.
Imbono Yekamva: Isahluko Esitsha Kwizobukrelekrele Nophuhliso Oluzinzileyo
4) Ukujonga phambili kwikamva, amathuba ophuhlisoIfilimu yeTPUkwicandelo lezonyango zibanzi kwaye zicacile:
-Ukuhlanganiswa okukrelekrele: Kwixesha elizayo, iifilimu zeTPU ziya kuhlanganiswa ngokunzulu nee-microelectronics kunye nee-sensors ukuphuhlisa "iifilimu ezikrelekrele" ezinokujonga iiparameter ze-physiological ezifana nesantya sentliziyo, iswekile yegazi, kunye nokwakheka kokubila ngexesha langempela, okukhuthaza uphuhliso lwezonyango ezenzelwe umntu ngamnye.
-I-TPU ebolayo: Ngokwanda kolwazi ngokhuseleko lokusingqongileyo, uphuhliso lwezinto ze-TPU ezinokulawulwa ukuba zonakale okanye zifunxwe ngumzimba womntu emzimbeni womntu luya kuba yindlela ephambili yesizukulwana esilandelayo sezixhobo ezifakelwayo, ezifana nee-stents zemithambo yegazi ezifunxwayo kunye nee-stents zobunjineli bezicubu.
-Ukuguqulwa komphezulu osebenzayo: Ngokunika iifilimu zeTPU iintsholongwane, i-anticoagulant, okanye ukukhuthaza ngamandla ukukhula kweeseli ngokusebenzisa ubuchwepheshe bomphezulu, ukusetyenziswa kwayo kwii-implants eziphezulu kunye nonyango oluntsonkothileyo lwamanxeba kuya kwandiswa ngakumbi.
I-Yantai Linghua New Material Co., Ltd. ikholelwa ukuba ifilimu ye-TPU ikhule ukusuka 'kwizinto ezithatha indawo' ukuya 'kwizinto ezinika amandla'. Indibaniselwano yayo yokusebenza eyahlukileyo ivula iinkalo ezintsha zokuvelisa izixhobo zonyango. Okwangoku sikwixesha legolide lenkqubela phambili kwezonyango eqhutywa yisayensi yezinto, kwaye i-TPU ngokungathandabuzekiyo yenye yeenkwenkwezi zeli xesha.
Ixesha leposi: Okthobha-09-2025