Ebuchwephesheni banamuhla bezokwelapha obuthuthukayo ngokushesha, i-polymer material ebizwaI-thermoplastic polyurethane (TPU)buthule buvusa uguquko. Ifilimu ye-TPU yeI-Yantai Linghua New Material Co., Ltd.isiba into esemqoka ebaluleke kakhulu ekwenziweni kwemishini yezokwelapha esezingeni eliphezulu ngenxa yokusebenza kwayo okuhle kakhulu kanye nokuhambisana kwayo nezinto eziphilayo. Ubukhona bayo bukhona yonke indawo, kusukela ezikhwameni zokufafaza zendabuko kuya kumishini yezempilo egqokekayo esezingeni eliphezulu.
1) Isici esiyinhloko: Kungani imboni yezokwelapha ithanda i-TPU?
TPU ifilimuakuyona ifilimu yepulasitiki evamile. Ihlanganisa ukunwebeka kwenjoloba namandla epulasitiki, ihlinzeka ngokuguquguquka okungakaze kubonwe ekwakhiweni kwedivayisi yezokwelapha.
-I-biocompatibility nokuphepha okuhle kakhulu: I-TPU yebanga lezokwelapha ibambelela ngokuqinile ezindinganisweni zokuvumelana kwe-biocompatibility njenge-ISO 10993, iqinisekisa ukuthi akukho ukuzwela noma ukusabela okungewona ubuthi lapho ithinta izicubu noma igazi lomuntu, kunciphisa kakhulu ubungozi besiguli.
-Ukusebenza okuhle kakhulu kwemishini: Ifilimu ye-TPU inamandla aphezulu okudonsa (imvamisa>30 MPa), ukuphakama okuphezulu kakhulu ngesikhathi sekhefu (>500%), nokumelana okuhle kakhulu kwezinyembezi (>30 kN/m), okwenza insimbi iqine ngokwedlulele futhi ikwazi ukumelana nokunwebeka okuphindaphindiwe, ukugoba, nokucindezelwa ngaphandle kokulimala.
-Umswakama kanye nokungena komoya: Izakhiwo ezinama-porous noma ze-hydrophilic zefilimu ye-TPU zivumela umhwamuko wamanzi ukuba udlule ngokukhululekile ngenkathi uvimbela amanzi aketshezi kanye namagciwane. Lokhu kubalulekile ekubopheni amanxeba nasezimpahleni zokuhlinzwa, ezingagcina isikhumba somile, sikhuthaze ukuphulukiswa, futhi sithuthukise ukunethezeka kwabasebenzi bezokwelapha.
-Ukuthinta okuthambile okuhle nokusobala: Ifilimu ye-TPU inokuthungwa okuthambile, ehlinzeka ngokulingana okunethezeka nokungenamthungo emzimbeni womuntu; Ukuba sobala kwayo okuphezulu kusiza abasebenzi bezokwelapha ukuthi babheke inqubo yokumnika noma ukuphulukiswa kwamanxeba.
-Inzalo: Ifilimu ye-TPU ingamelana nezindlela ezihlukahlukene zokuvala inzalo, okuhlanganisa i-ethylene oxide (EO), imisebe ye-gamma, nemishayo yama-electron, iqinisekisa ubunyumba nokuphepha kwemikhiqizo yokugcina.
2) Isimo sohlelo lokusebenza: Kusukela ekugadweni "okungabonakali" kuya phambili kwezobuhlakani
Lezi zici zeTPU ifilimuyenze kukhanye emkhakheni wezokwelapha:
-Infusion kanye nohlelo lokulethwa kwezidakamizwa: Njengongqimba lwangaphakathi nangaphandle lwezikhwama zokufakwa okuphezulu, izikhwama zokudla okunomsoco, nezikhwama ze-peritoneal dialysis, ukuguquguquka kwe-TPU nokumelana nokukhuhla kuqinisekisa ukuzinza kwesisombululo sezidakamizwa ngesikhathi sokuthutha nokusetshenziswa, futhi ukubonakala kwayo kusiza ukubhekwa kwezinga le-liquid.
-Ukunakekelwa kwezilonda kanye nokugqoka: Izingubo ezintsha ezingangeni manzi neziphefumulayo kanye nezinhlelo zokwelapha isilonda esibi (NPWT) zisebenzisa kakhulu ifilimu ye-TPU. Ingakwazi ukuhlukanisa ngokuphumelelayo ukungcola kwangaphandle futhi ikhiphe umswakama enxebeni, idale indawo ekahle yokuphola kwesilonda.
-Imikhiqizo yokuvikela yokuhlinza: esetshenziselwa ukukhiqiza izendlalelo eziphefumulayo nezilwa namagciwane zezingubo zokuhlinza, izingubo zokuzihlukanisa, nezingubo zokuzivikela, ezihlinzeka ngokuvikeleka okubalulekile ngenkathi kuxazululwa amaphuzu ezinhlungu zemikhiqizo yendwangu engalukiwe eqinile futhi engakhululekile.
-Imishini yezokwelapha emisha: Ifilimu ye-TPU isibe yingxenye ebalulekile kumadivayisi okungenelela njengama-catheter ibhaluni yezidakamizwa kanye namadivayisi okusiza inhliziyo yokwenziwa ngenxa yokuhambisana kwayo okuhle kakhulu kwegazi nokuguquguquka. Ngaphezu kwalokho, kumadivayisi wezokwelapha agqokekayo njengama-smart patches, ifilimu ye-TPU isebenza njenge-substrate ethintana ngqo nesikhumba, iqinisekisa ukunethezeka nokuthembeka kwesikhathi eside kwedivayisi.
3) Itshe legumbi lekhwalithi: amapharamitha abalulekile namazinga okuhlola
Ukuqinisekisa ukuthi yonke iqoqo lefilimu ye-TPU ihlangabezana nezimfuneko zezokwelapha eziqinile, sibhekisela ochungechungeni lwezindinganiso zamazwe ngamazwe akha insika yekhwalithi yayo:
-Izakhiwo zikaMechanical:
Amandla aqinile kanye nobude ngesikhathi sekhefu: I-ASTM D412 evamile evame ukusetshenziswa iqinisekisa ukuthi ifilimu inamandla anele nokunwebeka.
Amandla ezinyembezi: I-ASTM D624 ejwayelekile esetshenziswa kakhulu ikala ikhono layo lokumelana nokusakazwa kwezinyembezi.
-I-Biocompatibility: Kumelwe uphumelele ukuhlolwa okujwayelekile kochungechunge lwe-ISO 10993, okuyimfuneko eyisibopho yokugunyazwa kokumaketha kwedivayisi yezokwelapha.
-Ukusebenza kwesithiyo:
I-Moisture Transmittance Rate (WVTR): Amazinga afana ne-ASTM E96 alinganisela ukufinyeleleka kwawo komhwamuko wamanzi, ngamavelu aphezulu akhombisa ukungeneka komoya okungcono.
Izakhiwo zokuvimbela uketshezi: amazinga afana ne-ASTM F1670/F1671 (esetshenziselwa ukuhlola ukumelana negazi lokwenziwa kanye nokungena kwegciwane).
-Izici zomzimba:
Ukuqina: I-ASTM D2240 (Ukuqina kogu) isetshenziswa kakhulu, futhi i-TPU yebanga lezokwelapha ngokuvamile iphakathi kuka-60A no-90A ukuze kugcinwe ukuguquguquka.
I-Future Outlook: Isahluko Esisha Sezobunhloli Nentuthuko Esimeme
4) Ukubheka phambili esikhathini esizayo, amathemba okuthuthukiswaTPU ifilimuemkhakheni wezokwelapha zibanzi futhi zicacile:
-Ukuhlanganiswa okuhlakaniphile: Esikhathini esizayo, amafilimu e-TPU azohlanganiswa ngokujulile nama-microelectronics nezinzwa ukuze kuthuthukiswe "amafilimu ahlakaniphile" angakwazi ukuqapha imingcele ye-physiological efana nokushaya kwenhliziyo, ushukela wegazi, nokwakheka komjuluko ngesikhathi sangempela, ekhuthaza ukuthuthukiswa kwemithi yomuntu siqu.
-I-TPU ye-Biodegradable: Ngokuqwashisa okwandayo kokuvikelwa kwemvelo, ukuthuthukiswa kwezinto ze-TPU ezingalawulwa ukuze zonakaliswe noma zimuncwe umzimba womuntu ku-vivo kuzoba inkomba eyinhloko yesizukulwane esilandelayo samadivayisi afakekayo, njengama-stents emithambo yegazi kanye nama-stents wobunjiniyela bezicubu.
-Ukulungiswa kwendawo esebenzayo: Ngokunikeza amafilimu e-TPU nge-antibacterial, anticoagulant, noma akhuthaze ngenkuthalo amandla okukhula kwamaseli ngobuchwepheshe obuphezulu, ukusetshenziswa kwawo ekufakeni okuphezulu nokwelashwa kwamanxeba okuyinkimbinkimbi kuzonwetshwa nakakhulu.
I-Yantai Linghua New Material Co., Ltd. ikholelwa ukuthi ifilimu ye-TPU isikhulile isuka 'entweni ebambele' yaba 'impahla enika amandla'. Inhlanganisela yayo yokusebenza eyingqayizivele ivula ubukhulu obusha bokusungulwa kwemishini yezokwelapha. Njengamanje sisenkathini yentuthuko yezokwelapha eqhutshwa isayensi yezinto zokwakha, futhi ngokungangabazeki i-TPU ingenye yezinkanyezi zalesi sikhathi. ”
Isikhathi sokuthumela: Oct-09-2025