Ahakoa te PTFE (polytetrafluoroethylene) meePTFE(polytetrafluoroethylene whānui) he rite tonu te pūtake matū, he rerekētanga nui tō rātou i roto i te hanganga, te mahi me ngā wāhi tono.
Hanganga matū me ngā āhuatanga taketake
Kua whakapūhuitia te PTFE me te ePTFE mai i ngā monomer tetrafluoroethylene, ā, ko te tātai matū o ēnei e rua (CF₂-CF₂)ₙ, he tino koretake te matū, ā, he ātete ki ngā pāmahana teitei. Ka hangaia te PTFE mā te whakapūmau pāmahana teitei, ā, kua whakaritea tata ngā mekameka ngota hei hanga i tētahi hanganga matotoru, kore-pūpū. Ka whakamahia e te ePTFE tētahi tukanga totoro motuhake hei hanga i te muka o te PTFE i ngā pāmahana teitei hei hanga i tētahi hanganga mata pūpū me te pūpū o te 70%-90%.
Te whakataurite i ngā āhuatanga ā-tinana
| Ngā Āhuatanga | PTFE | ePTFE |
| Kiato | Teitei (2.1-2.3 karamu/cm³) | Iti (0.1-1.5 karamu/cm³) |
| Āheitanga uruhanga | Kāore he uruhanga (tino matotoru) | Te urunga nui (ka taea e ngā pore iti te horapa o te hau) |
| Ngāwari | He mārō, he pakarukaru hoki | Teitei o te ngāwari me te ngāwari |
| Te kaha miihini | He kaha pēhi teitei, he ātete iti ki te haehae | Kua tino pai ake te ātete ki te roimata |
| Pūngao | Kāore he pūwero | Ka taea e te porosity te eke ki te 70%-90% |
Ngā āhuatanga mahi
●PTFE: He koretake te matū, ā, he ātete ki ngā waikawa kaha, ki ngā kawakore kaha me ngā whakarewa waro, he awhe pāmahana mai i te -200°C ki te +260°C, ā, he tino iti te pūmau dielectric (tata ki te 2.0), he pai mō te whakamahana ara iahiko auau-teitei.
● ePTFE: Ka taea e te hanganga moroiti te whakatutuki i ngā āhuatanga ātete wai me te manawa (pēnei i te mātāpono Gore-Tex), ā, he whānuitia te whakamahinga i roto i ngā whakaurunga hauora (pēnei i ngā pātaki toto). He pai te hanganga moroiti mō te hiri i ngā gaskets (te whakahokinga mai i muri i te pēhanga hei whakakī i te āputa).
Ngā horopaki tono noa
● PTFE: He pai mō te whakamahana taura pāmahana-tiketike, ngā paninga whakahinuhinu peera, ngā arai paipa matū, me ngā arai tauhohenga parakore-tiketike i roto i te umanga haurua-ira.
● ePTFE: I roto i te mara taura, ka whakamahia hei paparanga whakamarumaru o ngā taura whakawhitiwhiti auau-tiketike, i roto i te mara hauora, ka whakamahia mō ngā oko toto horihori me ngā tuitui, ā, i roto i te mara ahumahi, ka whakamahia mō ngā kiriuhi whakawhiti pūmua pūtau wahie me ngā rauemi tātari hau.
He rerekē ngā painga o te PTFE me te ePTFE. He pai te PTFE mō ngā taiao pāmahana teitei, pēhanga teitei, me te waikura matū nā te mea he pai ake tōna ātete wera, tōna ātete matū, me te iti o te tauwehenga waku; ko te ePTFE, me tōna ngāwari, tōna uruhanga hau, me tōna hototahitanga koiora nā tōna hanganga moroiti, he pai te mahi i roto i ngā ahumahi hauora, tātari, me te hiri hihiri. Me whakatau te whiriwhiri rauemi i runga i ngā hiahia o te horopaki tono motuhake.
He aha ngā whakamahinga o te ePTFE i roto i te ao hauora?
ePTFE (polytetrafluoroethylene whakawhanui)e whakamahia whānuitia ana i roto i te ao hauora, nā tōna hanganga ahurei moroiti, hototahi ki te koiora, kāore e paitini, kāore e whakararuraru, ā, kāore hoki e mate pukupuku. Ko ngā whakamahinga matua e whai ake nei:
1. Marae ngākau
Ngā uaua toto horihori: Ko te ePTFE te rauemi hangai e whakamahia whānuitia ana mō ngā uaua toto horihori, e 60% pea te nui. Nā tōna hanganga moroiti ka taea e ngā pūtau kiko tangata me ngā uaua toto te tipu ki roto, ka hanga hononga tata ki te kiko autologous, ā, ka whakapai ake i te tere whakaora me te roa o te ora o ngā uaua toto horihori.
Pākete ngākau: e whakamahia ana hei whakatika i ngā kiko ngākau, pērā i te pericardium. Ka taea e te pākete ngākau ePTFE te ārai i te piri i waenga i te ngākau me te kiko sternum, ka whakaiti i te mōrearea o te pokanga tuarua.
Te stent toto: Ka taea te whakamahi i te ePTFE hei hanga i te paninga o ngā stent toto, ā, he pai te hototahitanga o tōna koiora me ōna āhuatanga hangarau hei āwhina i te whakaiti i te mumura me te thrombosis.
2. Pokanga kirihou
Ngā whakatō kanohi: Ka taea te whakamahi i te ePTFE hei hanga rauemi kirihou kanohi, pērā i te rhinoplasty me ngā whakakī kanohi. Ka āwhina tōna hanganga moroiti ki te tipu o ngā kiko me te whakaiti i te whakakorenga.
Ngā whakatō wheua wheua: I roto i te mara o te rongoā wheua, ka taea te whakamahi i te ePTFE ki te hanga i ngā whakatō hononga, ā, ko tōna ātete ki te kakahu me te hototahitanga pai ka āwhina i te whakanui ake i te roa o te ora o ngā whakatō.
3. Ētahi atu tono
Ngā pāti hernia: Ka taea e ngā pāti hernia i hangaia ki te ePTFE te aukati i te hokinga mai o te hernia, ā, ka āwhina tōna hanganga pūngoi i te whakaurunga o ngā kiko.
Ngā tuitui hauora: He pai te ngāwari me te kaha o ngā tuitui ePTFE, ka taea te whakaiti i te piri o te kiko i muri i te pokanga.
Ngā takirere ngākau: Ka taea te whakamahi i te ePTFE hei hanga takirere ngākau, ā, ko tōna pakari me tōna hototahi ki te koiora ka āwhina i te roa o te ora o ngā takirere.
4. Ngā paninga taputapu hauora
Ka taea hoki te whakamahi i te ePTFE mō ngā paninga o ngā taputapu hauora, pērā i ngā catheter me ngā taputapu pokanga. Nā tōna tauwehenga waku iti me tōna hototahitanga koiora ka āwhina i te whakaiti i te kino o te kiko i te wā pokanga.
Wā tuku: 27 Paenga-whāwhā 2025