EPTFE ili ndi mawonekedwe apadera komanso magwiridwe antchito, kuyanjana kwabwino kwachilengedwe, ndipo ndiyoyenera kwambiri kukonza chiwalo ndi opaleshoni.Ndipo ndi kupita patsogolo kwa mankhwala, kutchuka kwa maopaleshoni osiyanasiyana ovuta, komanso kusintha kwa moyo wa anthu, kufunikira kwa zinthu za EPTFE kukukulirakulira.
Pambuyo pa kusakaniza, kugaya, kuumba, calendering, kuyanika, kutambasula, sintering, zoyera, zofewa, zotanuka za EPTFE zidzapangidwa.
EPTFE ili ndi mawonekedwe apadera komanso magwiridwe antchito, kuyanjana kwabwino kwachilengedwe, ndipo ndiyoyenera kwambiri kukonza chiwalo ndi opaleshoni.Ndipo ndi kupita patsogolo kwa mankhwala, kutchuka kwa maopaleshoni osiyanasiyana ovuta, komanso kusintha kwa moyo wa anthu, kufunikira kwa zinthu za EPTFE kukukulirakulira.
Pambuyo pa kusakaniza, kugaya, kuumba, calendering, kuyanika, kutambasula, sintering, zoyera, zofewa, zotanuka za EPTFE zidzapangidwa.
1.The pZogulitsa za olymer za PTFE zachipatala zitha kugawidwa m'magulu atatu:
1.1.Zinthu zomwe zimalowa m'thupi la munthu (zokhazikika kapena zosakhalitsa)
Zogulitsa za polima zomwe zimapezeka kwamuyaya m'thupi ndi zoyikapo (zolowa m'malo mwa minyewa ndi ziwalo).The osakhalitsa ntchito monga catheters, ngalande machubu, earpieces, Zosefera, zipangizo mpweya wabwino, etc. Iwo makamaka ntchito zoyendera zinthu ndi mpweya, kusefera atolankhani, etc.
1.2.Zogulitsa zakunja
PTFE ma polima katundu monga plasticity, lightness, kulimba, tightness ndi elasticity, bata kwa TV zikuwononga, kutchinjiriza magetsi, etc., ndi zofunika kwambiri.Zogulitsazi zimaphatikizapo magolovesi, ma tourniquets, zida zokonzera miyendo, ma sheath akunja a zida zosiyanasiyana zowunikira, ndi zina zambiri.
1.3.Zigawo zogwira ntchito za kusanthula kwa biochemical ndi zida zophatikizira zam'chilengedwe, zida zokulilira, kukonzanso ndi kufalitsa maselo, minyewa, ndi zina zambiri.
2. Kugwiritsa ntchito zinthu za PTFE pazamankhwala
2.1 Ntchito kukodzedwa PTFE chigamba mu kukonza kunja m`mimba chophukacho ndi ambiri ambiri opaleshoni matenda, ndipo ambiri ndi inguinal chophukacho.Chithandizo cha opaleshoni ndi mankhwala odziwika.PTFE ndi fluoride wathunthu, ndipo ulusi wa PTFE wokodzedwa mwapadera ukhoza kuwonetsa mawonekedwe a porous ndipo ukhoza kupangidwa kukhala chinthu chofewa, chopindika, chosatupa.Ubwino waukulu wa chigamba cha PTFE chokulitsidwa ndikusinthasintha kwake.Mphamvu kumbali zonse zili mumkhalidwe wokhazikika.Itha kudulidwa ndikuphimba ngati pakufunika.Imawonetsa kupitilira kwa fiber komanso mawonekedwe apadera a porous.Maselo amatha kulowamo.Ili ndi minyewa yabwino yolumikizana, makina apamwamba kwambiri, kupweteka kwa bala pambuyo pa opaleshoni, mapangidwe ang'onoang'ono, komanso chitonthozo chabwino.Ndi chinthu choyenera kukonzanso chophukacho chopanda kupsinjika.
2.2.Kugwiritsa ntchito kwachipatala kwa EPTFE mu rhinoplasty
2.2.1.Mu rhinoplasty
Pakupunduka kwa mphuno, kupatsirana minofu kumafunika nthawi zambiri kuti akonze vutolo.Autologous cartilage akadali chinthu choyenera kwambiri chosinthira, koma pali zofooka monga kuvutikira kupeza zinthu, kuwonongeka kwa malo operekera, komanso kuyamwa kosayembekezereka kwa zinthu zomezanitsa.Zida za allogeneic zimakhala ndi zotsutsana ndi chitetezo cha mthupi ndipo zimakhala zovuta kuzisunga, choncho zimakhala zovuta kuti zigwiritsidwe ntchito kwambiri kuchipatala.Chifukwa chake, anthu nthawi zonse amayang'ana zinthu zopangira zopangira zabwino.Mu rhinoplasty yapakhomo, zida zambiri zomezanitsa zimagwiritsidwa ntchito, kuphatikiza mphira wa silikoni ndi hydroxyapatite.
2.2.2.Zopangira zomezanitsa
The ubwino EPTFE monga yokumba kumezanitsa zakuthupi ndi kuti ali wabwino minofu ngakhale, ndipo pa nthawi yomweyo ali ndi makhalidwe a kutha ananyema mu minofu yofewa ndi zosavuta kutenga.EPTFE ili ndi zida zapadera za physicochemical.Ma micropores ake ndi 30μ pafupifupi, zomwe zimapangitsa kuti minofu ikhale yokhazikika, zomwe zimapangitsa kuti implants iwonongeke ndikuvomerezedwa ndi chitetezo cha thupi.Chifukwa minofu si amkati, sizovuta kuchotsa kumezanitsa.
2.2.3.EPTFE chigamba chosalimbitsa
Chifukwa cha kusinthasintha kwake kwabwino kungagwiritsidwe ntchito kukonzanso minofu yofewa yam'deralo kumbuyo kapena nsonga ya mphuno.Chigamba cholimbitsidwa ndi kumbuyo kwa mphuno zowoneka bwino zimasinthasintha komanso kulimba kwina.Chifukwa chake, itha kugwiritsidwa ntchito ngati kumezanitsa ndi mphuno yowonjezereka.
2.2.4.Mu nasal nsonga plasty
Mphuno ya septal cartilage nthawi zonse imaganiziridwa kuti ndi chinthu choyenera kumezanitsa autologous.Septal cartilage ndi yowongoka, yotanuka, ndipo imakhala ndi mphamvu zinazake, koma kuipa kwake ndikuti kuchuluka kwa minofu yomwe imapezeka ndi yochepa.Pazinthu zomwe zimagwiritsidwa ntchito popanga kumezanitsa, hydroxyapatite sangagwiritsidwe ntchito popanga nsonga ya mphuno.Rabara ya silikoni imakhala ndi kutulutsa kwapamwamba kwambiri pakupanga mphuno, makamaka kuvulala, ndipo kusakwanira kwa khungu ndi minofu yofewa kumawonjezera kuthekera kwa kutulutsa.Maonekedwe a rabara ya silikoni ndi ovuta kwambiri.Ngati mphamvu yothandizira pansonga ya mphuno ndi yaikulu kwambiri, ikhoza kuyambitsa ischemia ya khungu kunsonga kwa mphuno.Thandizo lokhalitsa lingapangitse khungu la m'deralo kukhala lochepa thupi kapena ngakhale kupasuka ndipo prosthesis imatulutsidwa.Chigamba cholimbikitsidwa cha EPTFE ndi cholimba kuposa mphuno ya septal cartilage koma ndi yofewa kuposa silikoni.Choncho, chigamba cholimbikitsidwa cha EPTFE chingagwiritsidwe ntchito ngati chithandizo cha nsonga ya mphuno ndi kachigawo kakang'ono ka mphuno, koma kusowa kwake kwa elasticity ndiko kusowa kwake.Poyerekeza ndi mphira silikoni, EPTFE ali makhalidwe kulola minofu amkati, kuti kupewa ischemia ndi kupasuka kwa khungu la mfundo yothandizira, kotero EPTFE ndi wabwino mphuno nsonga kupanga zakuthupi.
2.2.5.Mu nasal nsonga plasty
Kujambula kwa prosthesis ndiko chinsinsi cha opaleshoni ya opaleshoni.Zanenedwa kuti prosthesis imayikidwa mu mawonekedwe a ambulera panthawi yopanga nsonga ya mphuno.Zomwe takumana nazo ndikuti prosthesis imajambulidwa mumkono wawung'ono wooneka ngati L ndi kupatulitsidwa ndi mitsempha ya mitsempha, yomwe idzapereka mkono waufupi wothandizira mokwanira kuti akwaniritse chithandizo ndi kuphulika kwa nsonga ya mphuno.
2.2.6 Mitsempha yamagazi Opanga
Pakali pano, mankhwalawa amagwiritsidwa ntchito makamaka pa femoral mtsempha wamagazi pseudoaneurysm mitsempha yam'mimba;kung'ambika kwa mtsempha wamagazi segment resection (kapena kukonza) kupatsirana kwamagazi opangira;kulumikiza zinthu portal matenda oopsa shunt;kutsekeka kwa vena cava yapamwamba ndi yotsika ndi atrium yakumanja;matumbo dongosolo Mtsempha ndi mlatho ndi atrium yoyenera;hemodialysis, etc. Kuposa 100 ntchito zachipatala zalandira zotsatira zabwino.Kugwiritsa ntchito nthawi yayitali kwambiri kwafika zaka 9.
2.2.7 Mphuno Yopanga
Amagwiritsidwa ntchito kwa odwala omwe ali ndi vuto lalikulu la tracheal cartilage, kugwa kwa tracheal, komanso kulephera kupanga kupuma kwabwino kwa lumen komwe kumachitika chifukwa chovulala pankhondo, kuvulala, komanso opaleshoni ya khansa yam'mphuno.munthu wa.Pambuyo pa milandu 10 yogwiritsira ntchito kuchipatala ku Changchun Hospital of Air Force ndikutsata zaka 10, chiwerengero cha kupulumuka chinali 100%.
2.2.8.Mapulogalamu ena
Pambuyo pochotsa mapapo, zida zopangira zimagwiritsidwa ntchito kuti zithetse zotsalira zotsalira, ndipo EPTFE ndi chinthu choyenera kulongedza panthawiyi.EPTFE patch ndi polypropylene patch ndizotetezeka komanso zogwira mtima pakuyika inguinal chophukacho mwa okalamba, zokhala ndi zovuta zochepa komanso kutsika kwapang'onopang'ono kusiyana ndi kuyika kwachikhalidwe.Pakati pawo, chigamba cha EPTFE ndichabwino kuposa chigamba cha polypropylene Mapiritsi amakhala omasuka.Zomwe zimayambitsa kutupa ndi thupi lachilendo chifukwa cha EPTFE ndi laling'ono, ndipo palibe choyipa chomwe chimawoneka pa bala lowonongeka, lomwe lingagwiritsidwe ntchito ngati chilonda chophimba.
Nthawi yotumiza: Jun-21-2020