Na Mea PA i na Lapaau Lapaau

ʻO nā mea hoʻomaʻemaʻe lāʻau lapaʻau he mau mea hana kūikawā i hoʻohana ʻia i nā kaʻina hana lapaʻau a me ka hoʻopili pololei ʻana a i ʻole ʻole me nā ʻiʻo kanaka. No laila, no nā mea polymer maʻemaʻe maʻemaʻe, ʻoi aku ka nui o nā mea lāʻau lapaʻau polymer implantable, pono lākou e hoʻokō i nā waiwai o ka non-toxicity, kemika inertness, histocompatibility, ke koko hoʻohālikelike, ke kūʻē ʻana i ka ʻelemakule biological, sterilizability, non-carcinogenicity, a me ka maʻalahi o ka hana ʻana, i mea e pono ai. e hōʻoia i ka palekana o nā mea no ke kino kanaka.

ʻO ka mea PA he ʻano amide like me nā macromolecules protein o ke kino kanaka maoli, he biocompatibility maikaʻi, a ʻaʻole maʻalahi ka hana ʻana i nā pūnaewele o nā mea ola e hana i nā hōʻailona hoʻoulu.

Eia kekahi, loaʻa iā ia ka paʻa kemika maikaʻi a me nā waiwai mechanical controllable, etc. I ka manawa like, hiki ke hoʻopili ʻia nā cell ma ka ʻili o nā mea PA. ʻO kēia mau waiwai kūikawā a pau e hana i nā mea lapaʻau a me ka mālama olakino PA, ʻoi aku ka maikaʻi o nā mea PA i hoʻokomo ʻia, e pāʻani i ka hana maikaʻi i ka hōʻemi ʻana i ka nui, ka hoʻololi ʻana i nā waiwai mechanical, a me ka hoʻomaʻamaʻa ʻana i ka hoʻokumu ʻana i nā hopena mechanical like ma waena o nā mea PA i hoʻokomo ʻia a me ke kino kanaka.

Ma muli o kona ikaika mechanical maikaʻi, abrasion kiʻekiʻe a me ka corrosion resistance, a me ka biocompatibility maikaʻi, hoʻohana nui ʻia ʻo PA ma ke ʻano he catheter olakino a me nā mea mālama olakino ʻē aʻe. He palupalu nā catheters lapaʻau i hoʻokomo ʻia i loko o ke kino e kōkua i ka hoʻokahe ʻana i ka mimi a i hoʻohana ʻia e like me nā alakaʻi uea no nā noi like ʻole i ka ʻike a me ka mālama ʻana i ka maʻi puʻuwai a me nā maʻi o ka ʻōpū. i hoʻomākaukau nui ʻia mai PA6, PA66, PA11 a me PA12.

Ma muli o ka hiʻohiʻona o nā mea PA, a me nā koi olakino a me ka maʻemaʻe,Hoʻokuʻu ʻia ʻo BAODua hoʻokomo kūponohoʻolālā extrusionma hope o ka ho'āʻo mau a me ka noiʻi. I ka noʻonoʻo piha ʻana i ka pololei o nā catheters lapaʻau a me nā koi o ka hana kiʻekiʻe kiʻekiʻe, hoʻemi nui ia i ka nui o ka ʻōpala waiwai a me ka helu o nā huahana hemahema. Ma o ka mīkini hoʻololi ʻōwili a me ka ʻoki a me ka hōʻiliʻili ʻana, a me nā mea ʻē aʻe, mālama ia i ka uku hana a hoʻonui i ka pono o ka ʻoihana.