Mumakamuri ekuvhiya, makiriniki emazino, uye dzimba dzekugadzira michina yekurapa, PTFE high-temperature tepi iri kwese kwese - asi kazhinji yakavanzika. Inodzivirira sterilization matireyi kubva mukunamira, majasi madhiraivha ekufamba kwakapfava, uye inotoita hwaro hwekumisikidza vascular grafts.
Nekuda kwekemikari inertness, kutsika kwakaderera, uye kugadzikana kwekupisa, PTFE ndeimwe yeanonyanya kushandiswa fluoropolymers mune zvekurapa zvikumbiro. Asi unoziva sei kuti ndeipi tepi yePTFE yakakodzera kushandiswa kwekurapa? Mhinduro yacho inoenderana nerudzi rwekusangana (kutarisana nemurwere zvakananga vs. isina kunanga), zvimiro zvekutonga (FDA, ISO 10993), uye nharaunda yekushandisa.
Aokai PTFE yakapa PTFE zvekushandisa zvekurapa kwemakore. Ichi chinyorwa chinoisa mumapoka ekurapwa nedanho rekusangana, chinotsanangura misimboti yemitemo miyero, uye inopa inoshanda sarudzo nhungamiro.
Category |
Yakajairika PTFE Tepi Zvikumbiro |
Zvinhu Zvinodiwa |
Zvikumbiro zvekurapa (zvakananga / zvisina kunanga murwere kubata) |
Suture tsono (low-friction coating); catheter/guidewire pamusoro kurapwa; maronda ekupfeka (kwete-adhesive backing); vascular grafts uye zvigamba zvemwoyo (e-PTFE); mazino mudzi canal kuparadzaniswa |
Biocompatibility (ISO 10993), kugadzikana kwemakemikari, kuderera kwekunzwa, kuenderana kweropa. |
Medical mudziyo kugadzira & kugadzirisa |
Autoclave tray uye kuchengetedzwa kwekamuri; kupisa-chisimbiso kurongedza (blister packs, IV mabhegi); chimbo chokuvhiya chibatiso chokupfeka; midziyo yemagetsi insulation |
Kudzivirira kwepamusoro-tembiricha (≥260 ° C yemaitiro ekuita sterilization), kemikari kusagadzikana kwekuora, kuchenesa nyore, kusanamatira. |
Laboratory & general indasitiri kuchengetedza |
Chemical analyzer kuchengetedzwa kwepamusoro; biosafety cabinet liners; mudziyo wezvokurapa casing zvisimbiso; pipeline anti-corrosion wrapping |
Kemikari kuramba, kuisa chisimbiso kuita, basa rekudzivirira |
PTFE's biocompatibility yakasimbiswa kwemakumi emakore ekushandiswa kwekiriniki. PTFE yakagamuchira FDA mvumo yekushandiswa kwevascular muma 1960s -, uye yakawedzera PTFE (e-PTFE) kubva zvino yave chinhu chakajairwa chemidziyo inoisirwa.
Application |
Kushandiswa Kwakananga |
Key PTFE Property |
Kuvhiya suturing |
Low-friction coating patsono dzesuture inogonesa kupinda kwenyama yakatsetseka |
Yakanyanya kuderera friction coefficient |
Catheter & guidewire coating |
PTFE coating inoderedza kupokana pakati peguidewire uye ngarava madziro, inosimudzira kufamba kuburikidza ne tortuous anatomy. |
Permanent low surface energy; hapana hydration inodiwa kune lubricity |
Kupfeka maronda |
Kusina-adhesive breathable backing inodzivirira yechipiri kukuvara kwetishu panguva yekupfeka kuchinja |
Simba repasi pasi, kufema kwemhepo |
Vascular grafts & mavanga emwoyo |
Diki-diameter e-PTFE mitsipa yeropa yakagadzirwa; yakasanganiswa e-PTFE artificial vascular grafts (semuenzaniso, CoreVascu) vari kupinda mumakiriniki miedzo. |
Yakanakisa biocompatibility, gradient microporous chimiro, antithrombotic |
Dental mudzi canal kurapwa |
PTFE membrane inoshandiswa sechinhu chekuzviparadzanisa mukati memidzi migero |
Biocompatibility, kugadzikana kwemakemikari |
Muono wakakosha: Pakuisirwa maapplications, PTFE haishandiswe setepi asi seyakabikwa yakagadziridzwa kuita mafomu chaiwo (semuenzaniso, e-PTFE vascular grafts, zvigamba). Aokai PTFE inopa PTFE zvigadzirwa izvo vagadziri vemudziyo vanoenderera mberi nekuita kwezvikumbiro izvi.
Medical Device Manufacturing & Processing Applications
Apa ndipo apo PTFE high-temperature tepi inonyanya kushandiswa zvakananga mune yayo tepi fomu.
1. Sterilization Equipment Dziviriro
Sterilization Method |
PTFE Tape Basa |
Performance |
Steam autoclave (121-134°C) |
Chengetedza matireyi uye madziro ekamuri; kudzivirira kunamatira kwezvisimbiso / gaskets |
Inoshingirira kudzokororwa kwepamusoro-tembiricha kutenderera |
EtO sterilization |
Kudzivirirwa kwepamusoro panguva yekumisa gasi |
Kemikari inodzivirira; hapana kuderedzwa |
Gamma irradiation |
Kudzivirirwa kwenguva pfupi (inoenderana nedose) |
Yakaganhurirwa - ona chinyorwa chapfuura pamusoro pekuramba kwemwaranzi |
PTFE-yakavakirwa matepi anomira akajairwa sterilization kutenderera anosanganisira steam autoclave, EtO, uye akawanda makemikari sterilants.
2. Kupisa-Chisimbiso Packaging
Mune zvekurapa blister packaging uye IV bhegi sealing mitsara, PTFE tepi inoiswa pamabhawa ekudziya kuti iwane nekukurumidza, kuvharika kwakachena pasina kunamira kuchinjisa kune homwe zvinhu. Matepi emufirimu ePTFE anochengetedza kugadzikana kwedimensional uye kupisa kwekuita mhiri -73°C kusvika 260°C, kudzivirira kutamiswa kwepolymer panguva yekuvharwa kwehomwe-.
3. Kuvhiya Instrument Surface Treatment
Application |
Benefit |
Chimbo chibatiso coating |
Anti-slip, ergonomic grip |
Tungamira njanji liners |
Kupfava kwemutsetse kufamba, kuderedzwa kwechikamu chechikamu |
Kuiswa kwemagetsi kwemidziyo yemukati |
Dielectric simba, thermal kugadzikana |
Aokai PTFE inopa PTFE tepi yekupisa yepamusoro yemidziyo yekurongedza yezvokurapa uye kudzivirira tirayi yekudzivirira. Matepi edu anowanikwa nesilicone pressure-sensitive adhesive, iyo inomira yakadzokororwa autoclave cycles pasina anonamatira zvakasara.
Regulatory Standards for Medical-Giredhi PTFE
1. FDA 21 CFR 177.1550 - Kutevedza Kwekutanga
FDA 21 CFR 177.1550 ndiyo yekutanga US Food and Drug Administration mutemo wefluoropolymer resins. Kuteerera kunoita kuti zvinhu zvePTFE zvive zvakachengeteka kuti zvidzokororwe kushandiswa pakubata nechikafu - uye nekuwedzera, ndiyo yakajairika chiyero chekurapa-giredhi PTFE.
Musiyano unokosha: FDA haitenderi zvigadzirwa; inobvumira zvigadzirwa zvekurapa zvakapedzwa. Kana mutengesi akataura kuti PTFE 'yakatenderwa neFDA,' vanenge vachireva kuti zvinhu zvinoenderana ne21 CFR 177.1550 - inova chiyero chekudya-. Pamidziyo yekurapa, kubvumidzwa kwekupedzisira kunoenderana nekupihwa kwemugadziri wemudziyo kuFDA.
2. ISO 10993 - Biocompatibility Testing
Kune yakananga murwere kuonana zvikumbiro, PTFE inofanirwa kuyedzwa pa ISO 10993 nhevedzano:
Test |
Standard |
Maitiro ekugamuchira |
Cytotoxicity |
ISO 10993-5 |
Kushanda kwesero ≥70%- |
Sensitization |
ISO 10993-10 |
zvekunzwa zvibodzwa ≤1 |
Irritation |
ISO 10993-10 |
Irritation index ≤2 |
Hemocompatibility |
ISO 10993-4 |
Hemolysis rate, thrombosis maitiro |
Kudyara |
ISO 10993-6 |
Kuzvimba mhinduro kugiredhi 0-4 |
PTFE zvinhu zvinoedzwa kuti ive nechokwadi chekuti hapana chepfu musero, hapana kunzwisiswa, uye hapana systemic chepfu maitiro kana yasangana nenyama yemunhu.
Summary & Sarudzo Gwaro
Kana application yako inosanganisira... |
Sarudza PTFE tepi? |
Kufunga kwakakosha |
Kusangana nemurwere zvakananga (implants) |
Kwete setepi - shandisa yakagadziriswa PTFE mbishi zvinhu |
Device-level FDA mvumo inodiwa; ISO 10993 bvunzo inosungirwa |
Sterilization midziyo kudzivirira |
✅ Hongu |
Inoda silicone PSA iyo inomira yakadzokororwa autoclave kutenderera (121-134 ° C) |
Kupisa-chisimbiso kurongedza |
✅ Hongu |
PTFE firimu tepi inosarudzwa; chengetedza kuenderana kwekushisa kwekuvhara |
Kuvhiya chiridzwa pamusoro pekuisa |
✅ Hongu |
Ita shuwa kuti biocompatibility yekunamatira kana kubata murwere zvichibvira |
Dziviriro yemidziyo yerabhoritari / isiri-murwere |
✅ Hongu |
Standard PTFE tepi yakakwana |
Muchidimbu , PTFE yakakwirira-tembiricha tepi inoshandira matatu matatu ezvikumbiro zvekurapa. Kwemashandisirwo ekutanga ekurapa (kusangana nemurwere zvakananga), PTFE inoshandiswa seyakagadzirwa (kwete setepi) ine mudziyo-level FDA mvumo uye ISO 10993 biocompatibility bvunzo. Yekugadzira nekugadzirisa mudziyo wekurapa - kudzivirira midziyo yekudzivirira, kupisa-chisimbiso kurongedza, uye chiridzwa chepamusoro kurapwa - PTFE tepi inogona kushandiswa zvakananga, ine silicone PSA inokurudzirwa kune autoclave nharaunda.
Kutevedzwa kwemutemo kunotanga neFDA 21 CFR 177.1550 yekuchengetedza zvinhu, asi kubvumidzwa kwekupedzisira kwemudziyo kunoda kutumirwa kwemugadziri. Zvekunetsa-kusangana nemurwere, gara uchisimbisa biocompatibility bvunzo pane yapera chigadzirwa, kwete chete mbishi zvinhu.
Unoda PTFE tepi kana mbishi zvinhu zvechikumbiro chekurapa? Aokai PTFE inopa zvekurapa-giredhi PTFE zvigadzirwa. Bata isu neruzivo rwechikumbiro chako, yakanangana nekuita sterilization nzira, uye zvinodiwa zvekutonga.
Mashoko ari pamusoro apa anopiwa ne Jiangsu Aokai New Materials Technology Co., Ltd.
Kana iwe uchida kuziva zvakawanda nezve yakadzama parameters, mamiriro ekushandisa, uye yakagadziridzwa mhinduro kune yedu yakazara chigadzirwa renji, kusanganisira PTFE yakakwirira-tembiricha jira, PTFE yakakwirira-temperature tepi, PTFE yakakwirira-temperature mesh bhandi, seamless fusing muchina bhandi, single-sided PTFE jira, yakakwirira-tembiricha inodzivirira, inodzivirira girazi , inonzwa yakasununguka girazi. isu:
Tichitsigira huzivi hwehunyanzvi uye kuvimbika, takazvipira kupa mhinduro-imwe chete uye masevhisi ane kufunga kune vese vatengi.
