Multi-lumen chubu extrusion luso
Kupambana mkatimachubu azachipatala ambiri a lumenukadaulo wa extrusion uli nawokukwezedwakugwiritsa ntchito mankhwalamachubuku mlingo watsopano.
M'makampani opanga zida zamankhwala, kuchuluka kwamphamvu kocheperakoery amatembenuza kufuna smallerndizipangizo zamakono zachipatala.Zida zomwe zimagwira pamitsempha yamagazi kapena minofu ina zimafunikira kuchipatalamachubundi kulondola kwapamwamba, kulolerana kolimba komanso ntchito yowonjezeras.Mongamachubu amapangidwazovuta kwambiri, matekinoloje a extrusionto kuwapanga iwokukhala zovuta.Palibe kukaikira zimenezondizambiri- lumen chubuextrusionlusoili patsogolo paukadaulo wa extrusion.
Zambiri- lumenextrusion kapena co-extrusion angatanthauzidwe ngati kutulutsa munthawi yomweyo kwa zigawo zingapo zazinthu.skupangamachubu azachipatala amitundu yambiri.Zambiri- lumenUkadaulo umagwiritsidwa ntchito makamaka kupititsa patsogolo magwiridwe antchito: kuphatikiza zida zowotcherera ndi zida zomwe zili ndi magwiridwe antchito ena, monga lubricity.Zomangamangazi zimathanso kuwongolera magwiridwe antchito ndikuchepetsanso ndalama zosonkhanitsira ndi zinthu zonse, zomwe zimapangitsa kuti zida zamankhwala zikhale zotsika mtengo kwa makasitomala;zina zingaphatikizepo kuwonjezera zigawo zogwira ntchito, monga hydrophilic, bioabsorbable kapena drug-eluting layers.Ukadaulo ndi zida zomwe zimapezeka kuti zipangitse zinthu zamitundu yambiri pazida zamankhwala zapita patsogolo kwambiri ndipo zimapatsa opanga zosankha zingapo za optimiz.ed kukula, zinthu ndi ntchito.
Ntchito zazachipatala PTFE machubu ambiri lumenm'zida zamankhwalazikuphatikizapo: cbwereranindi chubumalo okhala ndi mawonekedwe osiyanasiyana akunja ndi mkati;kuphatikizazipangizo ndi makhalidwe osiyana kupanga wapaderachubumakhalidwe;kulolezazida zogwira ntchitokukhalazili bwino;kupezazida zomangira mkati kapena kunja kwa kudzipangira nokha komanso kusonkhana kosavuta kwa zida zamankhwala zovuta.
Kukonzekera kwa chubu cha multilumenes amafuna amisiri chidutswa pamodzi zosiyanasiyana extruders ndi zida kunsi kwa mtsinje.Ndi njira yosaukayi, ndizotheka kuti ma extruder osiyanasiyana onse azikhala mu ndege imodzi, zomwe zimapangitsa kuti pakhale njira zazitali zoyenda, kuchuluka kwa kuthamanga kwa extrusion ndikuwonjezera nthawi yokonza zinthu.Pansi pa njira iyi yopangira,zofunikachubuwosanjikiza ziwerengero sizikufanana linanena bungwe mulingo woyenera wa extruder, zomwe zingachititseapamwamba kwambiri kapena otsikawononga liwiro, ndi zina kupanga machubundi osauka makina katundu.
Masiku ano multi-lumenchubuExtrusion processing zida ndi zambiri kukhala Integrated kwathunthukupangagwirizanitsani ndi mawonekedwe ogwiritsira ntchito amodzi omwe amayang'anira, kuwongolera ndi kulemba dongosolo lonse la extrusion mu nthawi yeniyeni.Extruders kwa aliyense wosanjikiza polima amasankhidwa kupereka ankafuna osiyanasiyana linanena bungwe liwiro kuti musanyengerera mawotchi zimatha chuma.Amayikidwa kuti achepetse nthawi yokhalamo, ndipo nthawi zambiri ma extruder amodzi kapena angapo amatha kuyikika molunjika kapena pamakona a 45 °.Childs, mmodzi kapena angapo extruder mu Mipikisano-Lumen dongosolo adzakhala micro-extruders ndizochepazotulukaof 50 magalamu pa ola, kulolaanwosanjikiza payekha kukhala ma microns ochepa wokhuthala.Opanga ma micro-extruder awa amagwiritsa ntchito zida zatsopano zotulutsira kuti awonetsetse kuti ma pellets apulasitiki okhazikika amayenda bwino pagawo la chakudya cha extruder popanda kutayika kwa bata.
Zoyembekeza zamakasitomala zikuyendetsa kugwiritsiridwa ntchito kwakukulu kwa kachitidwe kowongolera kawerengedwe kotereku ndikuwonjezera zofunikira zazinthu kuchokera ku mabungwe owongolera.Komabe, molondola mumzere muyeso wathinwzonsemedicaltubingndizovuta kwambiri kwa opanga zida zamankhwala.
Palinso zida zingapo za thermoplastic zomwe zingakhalepontchitokupanga machubu a lumen ambiri.Zida zomwe zimagwiritsidwa ntchito kwambiri ndi zomwe nthawi zambiri zimagwiritsidwa ntchito popanga machubu azachipatala, monga polyamide (PA), thermoplastic elastomer (TPE), polyurethane (PU), polyvinyl chloride (PVC), ndi polyolefin (PE).Zidazi zitha kusinthidwa kuti ziphatikizepo zida zotulutsa mankhwala, zida zama radioactive, zodzaza, ndi/kapena mitundu.Komabe, mlengi ayenera kuganizira kutentha processing, makhalidwe otaya ndi kusungunula mamasukidwe akayendedwe a zinthu.
Multi-lumenchubuukadaulo wa extrusion ndioyenera makamaka kutulutsa buku kapena yogwiraokwera mtengozida zomwe zili ndi ntchito zenizeni chifukwa zimalola kupanga koyenera kwa kuyika kwa zinthu izi pamachubu azachipatala. A common chitsanzondi: kuyikamankhwala-eluting zipangizo kunja wosanjikiza wachubukapenakuikakwambiri afewetsedwa zipangizo mkati wosanjikiza wachubu.Komanso,machubu azachipatala ambiri a lumenalimtengo ubwino chifukwa woonda zigawoakhoza kuikidwam'malo ogwira mtima kwambiri.
Kugwiritsa ntchito machubu okhala ndi lumen ambiri m'makampani azachipatala
Percutaneous m'malo mwa valavu ya matenda a mtima ndi chithandizo chomwe chikubwera chomwe chimapereka njira ina yopangira opaleshoni yachikhalidwe kwa odwala omwe ali pachiwopsezo chachikulu.Munjira iyi yocheperako pang'ono, waya wowongolera amadutsa pamalo olowera pachikazi ndikuwongolera zipinda zamtima.Chingwe chowongolera chimayikidwa pamwamba pa waya wowongolera, ndipo njira yoperekera ma valve imayambitsidwa.Themachubu azachipatalachofunika kuti apereke valavu ku malo ndi chigawo chapadera kwambiri.Mapeto a distal ayenera kusinthidwa mosavuta kuti athe kutsogoleredwa mwachindunji mu chipinda cha mtima.Kumapeto kwa proximal kumafunika kukhala olimba kwambiri, Iyenera kukhala yolimba kwambiri, ndipo m'mimba mwake iyenera kupakidwa mafuta kuti ikhale yosalalandikubweretsa kosasokonezad mavavu.Chinthu china chofunika kwambiriis kuti khomaayenerakukhala woonda momwe mungathere kuti muwonjezere kuchuluka kwa njira yobweretsera m'malo mwaked valve popandachubukutaya ntchito yake iliyonse.
Okonza anakumana ndi zovuta zambiri popanga chigawo ichi.PTFE zopangira mafutakawirikawiri amakumanamulingo wamakampani wamachitidwe operekera,koma sangathekugwiritsidwa ntchito chifukwazothekaZotsatira za radiation ya gamma panthawi yotseketsa.Kuonetsetsa kutimachubu azachipatalasichimasokoneza kapena kupunduka pamene ikutsogoleredwa kupyolera mu anatomy kupita kumtima, wosanjikiza woluka ayenera kuphatikizidwa mu chigawocho.
Mapangidwe omaliza ndi msonkhano wamagulu asanu wokhala ndi mipanda yowonjezereka kwambirimachubu azachipatala ambiri a lumen, wosanjikiza wosanjikiza wa chitsulo chosapanga dzimbiri ndi polyether block amide sheaths za kuuma kosiyanasiyana, kuonjezera proximal ku kusinthasintha distal kwa wosanjikiza wakunja kwa msonkhano.
Mapeto
Kugwiritsa ntchito kwatsopano kwa multi-lumenichubum'mapangidwe azachipatala asintha momwe timathetsera mavuto ambiri azachipatala.M'tsogolomu, ngati chida cha extrusions ndi njira zopangira makina zimakhala zotsogola kwambiri, kuphatikiza ndi kusintha kwa machitidwe owongolera ndi kuyeza,SuKo, imodzi mwama China apamwamba 10makampani azachipatala amachubuyembekezerani kuti mukwaniritse zolondola kwambiri ndi ang'onoang'ono, owonda komanso osinthasintha- lumen chubus.Popita nthawi, ambiri- lumenextrusionkupangamizere idzakhala yapadera kwambiri komanso matekinoloje ena owonjezeraaphatikizidwamonga multi-lumen extrusion, tapered extrusion, ndi intermittent/interrupted extrusion.
Nthawi yotumiza: Aug-03-2022