ʻO ka holomua mapaipu lapaau nui lumenUa loaʻa i ka ʻenehana extrusionhāpai ʻiaka noi ʻana i ka lāʻau lapaʻaupaipui kahi pae hou.

I ka ʻoihana lāʻau lapaʻau, ka liʻiliʻi invasive surgery rends e koi smalleranā mea lapaʻau hou hou aku.Pono nā mea hana i nā kīʻaha koko a i ʻole nā ​​​​mea ʻē aʻe i ka lāʻau lapaʻaupaipume ka pololei kiʻekiʻe, ka hoʻomanawanui ʻoi aku ka paʻa a me ka hana hous.E like meua hoʻolālā ʻia nā paipuʻoi aku ka paʻakikī, nā ʻenehana extrusionto hana ia lakoulilo i mea paʻakikī.ʻAʻohe mea kānaluakalehulehu-lumen paipuextrusionʻenehanaaia ma ke alo o ka ʻenehana extrusion.

Nui-lumenhiki ke wehewehe ʻia ka extrusion a i ʻole co-extrusion e like me ka extrusion hoʻokahi o nā papa he nui o nā mease hoohua mainā paipu lapaʻau multi-lumen.Nui-lumenHoʻohana mua ʻia ka ʻenehana no ka hoʻomaikaʻi ʻana i ka hana: ka hui ʻana i nā mea weldable me nā mea i loaʻa kekahi mau hiʻohiʻona hana ʻē aʻe, e like me ka lubricity.Hiki i kēia mau hale ke hoʻomaikaʻi i ka hana a hiki ke hōʻemi i ka hui holoʻokoʻa a me nā kumukūʻai waiwai, e ʻoi aku ka maikaʻi o nā lāʻau lapaʻau no nā mea kūʻai aku;Hiki i nā hiʻohiʻona ʻē aʻe ke komo i ka hoʻohui ʻana i nā papa mea ikaika, e like me nā papa hydrophilic, bioabsorbable a i ʻole nā ​​lāʻau lapaʻau.ʻO nā ʻenehana a me nā mea i loaʻa e hana i nā huahana multilayer no nā lāʻau lapaʻau ua hoʻomaikaʻi maikaʻi loa a hāʻawi i nā mea hoʻolālā i kahi ākea o nā koho no optimized nui, mea a me ka hana.

Nā hana olapaʻau PTFE multi-lumen paipuma na mea lapaaukomo: creatana paipunāʻili me nāʻano likeʻole no nāʻaoʻao waho a me loko;hui ananā mea me nā ʻano ʻokoʻa e hana ʻokoʻapaipunā hiʻohiʻona;hiki anamea hanaekahi kūpono loa;huli ananā mea paʻa i loko a i waho paha no ka hui ponoʻī a me ka hui maʻalahi o nā mea lapaʻau paʻakikī.

ʻO ka hana ʻana o ka pahu multi-lumenes koi i nā ʻenehana e hui pū i nā ʻano extruders a me nā mea hana i lalo.Me kēia ala maikaʻi ʻole, aia paha nā extruders like ʻole i ka mokulele hoʻokahi, e hopena i nā ala kahe lōʻihi, hoʻonui i ke kaomi extrusion a hoʻonui i ka manawa hana.Ma lalo o ia ʻano hana,ka mea i makemakeiapaipuʻAʻole i kūlike nā ratio papa i ka hoʻopuka maikaʻi loa o ka extruder, hiki ke hopenakiʻekiʻe a haʻahaʻa pahanā māmā holo, a oi aku hua paipume nā waiwai mechanical maikaʻi ʻole.

Nui-lumen houpaipuʻOi aku ka nui o nā lako hana extrusion i hoʻohui ʻiahana ʻanalaina me kahi mea hoʻohana hoʻokahi e nānā, mālama a hoʻopaʻa i ka ʻōnaehana extrusion holoʻokoʻa i ka manawa maoli.Ua koho ʻia nā Extruders no kēlā me kēia papa polymer e hāʻawi i ka laulā i makemake ʻia o nā wikiwiki hoʻopuka ʻaʻole e hoʻololi i nā ʻano mechanical o ka mea.Hoʻonohonoho ʻia lākou e hōʻemi i ka manawa noho waiwai, a ʻo ka mea maʻamau hoʻokahi a ʻoi aku paha nā extruders hiki ke kau ʻia i ka vertical a i ʻole ma kahi kihi 45 °.ʻO ka mea maʻamau, hoʻokahi a ʻoi aku paha nā extruders i kahi lehulehu-lumen nenoaiu e micro-extruders meka palena ikipukaof 50 grams i kēlā me kēia hola, e ʻaeanʻO ka papa pākahi he mau microns ka mānoanoa.Hoʻohana nā mea hana o kēia micro-extruders i nā hoʻolālā extruder hou e hōʻoia i ka hele maikaʻi ʻana o nā pellet plastik maʻamau ma ka ʻāpana hānai o ka extruder me ka ʻole o ka pau ʻole o ka paʻa.

Ke alakaʻi nei nā manaʻolana o nā mea kūʻai aku i ka hoʻohana nui ʻana o ia ʻōnaehana kaʻina hana helu helu a me ka hoʻonui ʻana i nā koi huahana mai nā ʻoihana hoʻoponopono.Eia naʻe, pololei ma ka laina ana othinwpau loamedicaltubinghe paʻakikī nui ia no nā mea hana lāʻau lapaʻau.

Aia kekahi mau mea thermoplastic i hiki ke hanahoʻohana ʻiae hoʻolālā i nā paipu lumen nui.ʻO nā mea maʻamau i hoʻohana ʻia ʻo ia nā mea maʻamau no ka hana ʻana i nā paipu lapaʻau, e like me polyamide (PA), thermoplastic elastomer (TPE), polyurethane (PU), polyvinyl chloride (PVC), a me polyolefin (PE).Hiki ke hoʻopilikino ʻia kēia mau mea no ka hoʻopili ʻana i nā ʻāpana lāʻau-eluting, nā mea radioactive, nā mea hoʻopihapiha, a me nā kala.Eia nō naʻe, pono e noʻonoʻo ka mea hoʻolālā i ka mahana hana, nā hiʻohiʻona kahe a me ka viscosity melt o ka mea.

Nui-lumenpaipukūpono loa ka ʻenehana extrusion no ka extruding moʻolelo a i ʻole ka hanapipiʻinā mea i loaʻa nā hana kiko'ī no ka mea hiki ke hoʻolālā kūpono i ke kau ʻana o kēia mau mea ma kapaipu lapaau. A claʻana ommonʻo ia: kau ʻanalāʻau-eluting mea ma ka papa waho o kapaipua i ʻolekau anamea lubricated nui ma ka papa o loko o kapaipu.Eia kekahi,paipu lapaau nui lumenloaʻakumu kūʻai pōmaikaʻi no ka mea, lahilahi papahiki ke waihoma nā wahi kūpono loa.