Emveni kweminyaka,PTFE ukutyabekaiinketho ziye zakhula kwimarike yesixhobo sonyango, ukuphucula iinkqubo zokuvelisa ngeendlela ezininzi ezahlukeneyo.Kwaye ngezinto ezininzi kunye nokhetho lokugquma olukhoyo namhlanje, ukukhetha i-mandrel efanelekileyo egqunywe kwiimfuno zakho zokuvelisa ezizodwa kunokubonakala kunzima kakhulu.Ngoko ke, nantsi imiba emihlanu ekufuneka uyiqwalasele xa ukhetha i-mandrel egqunywe ukwenza isigqibo sakho lula.
1. Cinga umva
Okokuqala, qwalasela eyona njongo iphambili yokusetyenziswa kokugqibela kunye nezixhobo.Nokuba uyakha inkqubo yokuhambisa ephucukileyo ene-lumens ezininzi okanye i-extruding kwi-mandrel ene-tapered.Ukuqonda indlela imveliso ekupheleni iya kusetyenziswa kuya kukunceda ukuba uchonge iimpawu ezingundoqo ezifunekayo mandrels camera.
2. Yenza uludwe
Bhala phantsi zonke iintlobo kunye nobunzima beepolymers ezifunekayo ukuhlangabezana neemfuno ze-proximal kunye ne-distal shaft yokusebenza, ezifana nokuchasana kwe-kink kunye nokuhamba.Kwakhona kubalulekile ukuqonda indlela ukushisa okusebenzayo kwenkqubo yokubuyisela kwakhona kuchaphazela i-polymer nganye.Ngokomzekelo, ezinyePTFEI-coatings inokumelana nobushushu obuqhubekayo obuyi-550 ° F kwaye inokumelana neqondo lokushisa elingama-700 ° F.
3. Vavanya ukhetho lwakho
Ngoku uzimisele uluhlu lobushushu ungasebenzisa, kufuneka uqwalasele ukuba yeyiphi isiseko mandrel izinto ukusebenzisa.Nangona kukho ugcino lweendleko eziphathekayo ekufuneka zenziwe xa kuqwalaselwa izinto enye phezu kwenye, kufuneka uqwalasele iipropati eziphathekayo kunye neenzuzo ukuba izinto mandrel nganye inikeza kwinkqubo yokuvelisa.Kunokuba luncedo ukukhangela ababoneleli abanokubonelela ngoluhlu olubanzi lwee-arbor substrates ezifana nensimbi engenasici, i-Nitinol, kunye ne-silver-plated copper.Unako ke ukuvavanya nganye mandrel imathiriyeli ukumisela eyona ilungileyo isicelo sakho kunye nohlahlo lwabiwo-mali.Eyona ndlela ilungileyo yokwenza esi sigqibo kukuvavanya iinketho zakho.
4. Qinisekisa iimfuno zokuthambisa
Ukugqiba iimfuno zokuthambisa kuya kunceda ukuqinisekisa ukuba inkqubo yokwaleka ifezekisa ubomi obude be-mandrel ngexesha lokwenziwa.Iingcingo zokutsala kunye neentambo ezisetyenziswayo kwiinkqubo zongenelelo kufuneka zidlule ngaphandle komthungo kububanzi bangaphakathi becatheter, ngoko ke umgangatho wokuthambisa ukumgangatho ophezuluIzinto ze-PTFEkufuneka isetyenziswe.ezinye iinguqulelo ze-PTFE fluoropolymer coatings, ezifana ne-PTFE Natural, inokubonelela ngeenzuzo zokusebenza.Ngokomzekelo, i-coefficient of friction ye-0.05 ifezekisiwe ukwenza lula ukukhutshwa kwe-catheter ngexesha le-fuse welding kunye nemisebenzi yokuthulula.
5. Iimpawu zokugquma eziphambili zokukhangela
Okokugqibela, nokuba uyila umgca wokutsalwa okanye inkqubo yokuhambisa, hlala ujonge i-mandrel egqunywe ngomgangatho kunye neyunifomu, echanekileyo, enomphezulu ongeyo-flaking.
Njengoko ukuntsonkotha kusanda kunye nobungakanani bemveliso buncipha, iingubo ezithambisayo ezifana ne-PTFE imathiriyeli ziye zibaluleke kakhulu kwinkqubo yokwenziwa kwecatheter.Ukuqina kwakhona kubalulekile ukuqinisekisa ukhuseleko kunye nokusebenza kwalo naliphi na icandelo elibandakanyiweyo kwisixhobo sokugqibela.
Ixesha lokuposa: Dec-14-2022