Izinto ezicocekileyo zonyango zizinto ezikhethekileyo ezisebenzayo ezisetyenziswa kwiinkqubo zonyango kunye nokunxibelelana ngokuthe ngqo okanye ngokungathanga ngqo kunye nezicubu zomntu. Ke ngoko, izixhobo zepolymer zococeko lwezonyango, ngakumbi izixhobo zepolymer zonyango ezifakelweyo, kufuneka zihlangane neempawu zokungafaki ubutyhefu, ukunganyaniseki kweekhemikhali, ukuhambelana kwe-histocompatibility, ukuhambelana kwegazi, ukuchasana nokuguga kwebhayoloji, ubuchwephesha, ukungabikho kwe-carcinogenicity, kunye nokulula ukusetyenzwa, ukuze ukuqinisekisa ukhuseleko lwezixhobo kumzimba womntu.
Izinto ze-PA zinesakhiwo esifanayo se-amide kunye nenxalenye yendalo yomzimba womntu yeprotheni ye-macromolecules, ine-biocompatibility efanelekileyo, kwaye akukho lula ukwenza iiseli zezinto eziphilayo zivelise iimpawu zokuvuselela.
Ukongezelela, inozinzo oluhle lweekhemikhali kunye nezixhobo ezilawulwayo zemishini, njl. Ngelo xesha, iiseli zinokubhengezwa kumphezulu wezinto ze-PA. Zonke ezi zakhiwo zikhethekileyo zenza izixhobo ze-PA zonyango kunye nokhathalelo lwempilo, ngakumbi izixhobo ze-PA ezifakelweyo, zidlala indima efanelekileyo ekunciphiseni ubunzima, ekutshintsheni iipropathi zoomatshini, kwaye ngakumbi ekuququzeleleni ukusekwa kweziphumo zoomatshini phakathi kwezinto ezifakelweyo ze-PA kunye nomzimba womntu.
Ngenxa yamandla ayo abalaseleyo koomatshini, ukuqhawuka okuphezulu kunye nokunganyangeki kokutya, kunye nokuhambelana kakuhle kwe-biocompatibility, i-PA isetyenziswa ngokubanzi njengecatheter yezonyango kunye nezinye izixhobo zempilo. I-catheters yezonyango ithambile, iityhubhu ezingenanto ezifakwe emzimbeni ukuze zincede kwi-drainage yomchamo okanye zisetyenziswe njengezikhokelo zocingo kwiinkqubo ezahlukeneyo zokuxilongwa kunye nonyango lwesifo senhliziyo kunye nokuphazamiseka kwesisu.Ii-catheters zonyango ze-PA nazo zisetyenziswa kwi-drips emithanjeni kwaye ingaba zilungiswe ikakhulu ukusuka PA6, PA66, PA11 kunye PA12.
Ngokusekwe kwinqaku lezinto ze-PA, kunye neemfuno zonyango kunye nococeko,I-BAOD Extrusionyazisa ezifanelekileyouyilo lwe-extrusionemva kovavanyo oluqhubekayo kunye nophando. Ukuthathela ingqalelo ngokupheleleyo ukuchaneka kwee-catheters zonyango kunye neemfuno zemveliso yesantya esiphezulu, kunciphisa kakhulu izinga lenkunkuma yezinto eziphathekayo kunye nezinga leemveliso ezineziphene. Ngokusebenzisa isixhobo sokutshintsha okuzenzekelayo kunye nokusika kunye nokuqokelela ngokuzenzekelayo, njl. njl., igcina iindleko zabasebenzi kwaye yenza inzuzo yeshishini ibe nkulu.
Ixesha lokuposa: Jun-13-2024