I ka ʻenehana lapaʻau e holomua wikiwiki nei i kēia lā, kahi mea polymer i kapa ʻiapolyurethane thermoplastic (TPU)ke hoʻāla mālie nei i kahi kipi. ʻO ke kiʻiʻoniʻoni TPU oYantai Linghua New Material Co., Ltd.ke lilo nei i mea koʻikoʻi nui i ka hana ʻana i nā mea lapaʻau kiʻekiʻe ma muli o kāna hana maikaʻi loa a me ka biocompatibility. Aia kona alo ma nā wahi āpau, mai nā ʻeke infusion kuʻuna a hiki i nā mea olakino hiki ke hoʻohana ʻia.
1) Hiʻohiʻona koʻikoʻi: No ke aha e makemake nui ai ka ʻoihana lapaʻau iā TPU?
Kiʻiʻoniʻoni TPUʻaʻole ia he ʻili plastik maʻamau. Hoʻohui ia i ka elasticity o ka laholio me ka ikaika o ka plastik, e hāʻawi ana i ka maʻalahi i ʻike ʻole ʻia no ka hoʻolālā ʻana i nā mea lapaʻau.
-ʻO ka biocompatibility maikaʻi loa a me ka palekana: Hoʻopili pono ka TPU papa lapaʻau i nā kūlana biocompatibility e like me ISO 10993, e hōʻoiaʻiʻo ana ʻaʻohe sensitization a i ʻole nā hopena ʻawaʻawa i ka wā e pili ai me nā ʻiʻo kanaka a i ʻole ke koko, e hōʻemi nui ana i ka pilikia o ka mea maʻi.
-Hana mīkini maikaʻi loa: Loaʻa i ka ʻili TPU ka ikaika tensile kiʻekiʻe (maʻamau>30 MPa), elongation kiʻekiʻe loa i ka haki (>500%), a me ke kūpaʻa maikaʻi loa i ka haehae (>30 kN/m), e hoʻolilo ana i ka mea kani i mea paʻa loa a hiki ke kū i ka hoʻolōʻihi pinepine ʻana, ke kūlou ʻana, a me ke kaomi ʻana me ka ʻole o ka hōʻino ʻia.
-Ka makū a me ka ea komo: ʻO nā waiwai porous a hydrophilic paha o ka ʻili TPU e ʻae i ka mahu wai e hele manuahi ma waena me ka pale ʻana i ka wai wai a me nā bacteria. He mea koʻikoʻi kēia no nā ʻaʻahu ʻeha a me nā lole pale ʻoki, hiki ke mālama i ka ʻili i maloʻo, hoʻoulu i ka ho'ōla ʻana, a hoʻonui i ka ʻoluʻolu o nā limahana lapaʻau.
-Paʻi palupalu maikaʻi loa a me ka moakāka: He palupalu ke ʻano o ka kiʻiʻoniʻoni TPU, e hāʻawi ana i kahi kūpono a ʻoluʻolu hoʻi i ke kino o ke kanaka; ʻO kona moakāka kiʻekiʻe e kōkua i nā limahana lapaʻau e nānā i ke kaʻina hana infusion a i ʻole ka ho'ōla ʻana o ka ʻeha.
-Sterilizability: Hiki i ka ʻili TPU ke kū i nā ʻano sterilization like ʻole, me ka ethylene oxide (EO), nā kukuna gamma, a me nā kukuna electron, e hōʻoiaʻiʻo ana i ka sterility a me ka palekana o nā huahana hope.
2) Ke kūlana noi: Mai ka mālama "ʻike ʻole ʻia" a hiki i ke alo o ka naʻauao
ʻO kēia mau ʻano oKiʻiʻoniʻoni TPUe hoʻomālamalama iā ia ma ke kahua lapaʻau:
-ʻŌnaehana hoʻokomo a me ka lawe ʻana i ka lāʻau: Ma ke ʻano he mea papa o loko a me waho o nā ʻeke hoʻokomo kiʻekiʻe, nā ʻeke meaʻai, a me nā ʻeke dialysis peritoneal, ʻo ka maʻalahi o TPU a me ke kū'ē ʻana i ka hamo e hōʻoia i ke kūpaʻa o ka hopena lāʻau i ka wā o ka halihali a me ka hoʻohana ʻana, a ʻo kona mālamalama e hoʻomaʻamaʻa i ka nānā ʻana i ka pae wai.
-Mālama ʻeha a me nā ʻaʻahu: Hoʻohana nui nā ʻōnaehana ʻaʻahu pale wai a me ka hanu hou a me nā ʻōnaehana lapaʻau ʻeha kaomi maikaʻi ʻole (NPWT) i ka ʻili TPU. Hiki iā ia ke hoʻokaʻawale pono i nā mea haumia o waho a hoʻokuke aku i ka makū mai ka ʻeha, e hana ana i kahi kūlana kūpono no ka ho'ōla ʻana i ka ʻeha.
-Nā huahana pale ʻoki kino: hoʻohana ʻia e hana i nā papa hanu a me nā antibacterial no nā pale ʻoki kino, nā ʻaʻahu hoʻokaʻawale, a me nā lole pale, e hāʻawi ana i ka palekana koʻikoʻi ʻoiai e hoʻoponopono ana i nā pilikia o nā huahana lole ulana ʻole kuʻuna e paʻa a ʻoluʻolu ʻole.
-Nā mea lapaʻau hou: Ua lilo ka ʻili TPU i mea nui i nā mea hana komo e like me nā catheters balloon lāʻau lapaʻau a me nā mea kōkua puʻuwai hana ma muli o kona kūlike koko maikaʻi loa a me ka maʻalahi. Eia kekahi, i nā mea lapaʻau hiki ke hoʻokomo ʻia e like me nā ʻāpana akamai, lawelawe ka ʻili TPU ma ke ʻano he substrate i ka pilina pololei me ka ʻili, e hōʻoiaʻiʻo ana i ka ʻoluʻolu a me ka hilinaʻi lōʻihi o ka mea hana.
3) Ke kihi o ka maikaʻi: nā palena koʻikoʻi a me nā kūlana hoʻāʻo
I mea e hōʻoia ai e hoʻokō kēlā me kēia pūʻulu o ka ʻili TPU i nā koi lapaʻau koʻikoʻi, ke kuhikuhi nei mākou i kahi moʻo o nā kūlana honua e hana i ke kihi o kona ʻano maikaʻi:
-Nā waiwai mīkini:
ʻO ka ikaika tensile a me ka elongation i ka haki: ʻO ka maʻamau maʻamau ASTM D412 e hōʻoiaʻiʻo ana he lawa ka ikaika a me ka elasticity o ke kiʻiʻoniʻoni.
Ikaika haehae: Ke ana nei ke kūlana maʻamau ASTM D624 i kona hiki ke pale aku i ka laha ʻana o ka haehae.
-Biocompatibility: Pono e hala i ka hoʻāʻo maʻamau ISO 10993 series, he koi ia no ka ʻae ʻia ʻana o ke kūʻai aku ʻana i nā hāmeʻa lapaʻau.
-Hana pale:
Ka helu hoʻoili wai (WVTR): Hōʻike nā kūlana e like me ASTM E96 i kona permeability mahu wai, me nā waiwai kiʻekiʻe e hōʻike ana i ka permeability ea maikaʻi aʻe.
Nā waiwai pale wai: nā kūlana e like me ASTM F1670/F1671 (hoʻohana ʻia e hoʻāʻo i ke kū'ē ʻana i ke koko synthetic a me ke komo ʻana o ka maʻi).
-Nā ʻano kino:
Paʻakikī: Hoʻohana pinepine ʻia ʻo ASTM D2240 (Shore hardness), a ʻo ka TPU papa lapaʻau maʻamau ma waena o 60A a me 90A e mālama i ka maʻalahi.
Nānā i ka Wā e Hiki Mai Ana: He Mokuna Hou ma ka ʻIke a me ka Hoʻomohala Hoʻomau
4) Ke nānā nei i mua i ka wā e hiki mai ana, nā manaʻolana hoʻomohala oKiʻiʻoniʻoni TPUma ke kahua lapaʻau he ākea a maopopo hoʻi:
-Hoʻohui akamai: I ka wā e hiki mai ana, e hoʻohui hohonu ʻia nā kiʻiʻoniʻoni TPU me nā microelectronics a me nā sensor e hoʻomohala i nā "kiʻiʻoniʻoni akamai" hiki ke nānā i nā ʻano physiological e like me ka helu o ka puʻuwai, ke kō koko, a me ka haku mele hou i ka manawa maoli, e paipai ana i ka hoʻomohala ʻana o ka lāʻau lapaʻau pilikino.
-TPU palaho ʻia: Me ka ʻike nui ʻana i ka palekana o ke kaiapuni, ʻo ka hoʻomohala ʻana i nā mea TPU hiki ke hoʻomalu ʻia e palaho a hoʻopili ʻia paha e ke kino kanaka i loko o ke kino e lilo ia i kuhikuhi koʻikoʻi o ka hanauna e hiki mai ana o nā mea implantable, e like me nā stents vascular absorbable a me nā stents ʻenekinia kiko.
-Hoʻololi ʻili hana: Ma ka hāʻawi ʻana i nā kiʻiʻoniʻoni TPU me ka antibacterial, anticoagulant, a i ʻole ka hoʻolaha ikaika ʻana i nā hiki ke ulu ʻana o ke kelepona ma o ka ʻenehana ʻili, e hoʻonui hou ʻia kāna noi i nā implants kiʻekiʻe a me ka mālama ʻana i nā ʻeha paʻakikī.
Manaʻo ʻo Yantai Linghua New Material Co., Ltd. ua ulu ka ʻili TPU mai kahi 'mea pani' i kahi 'mea hoʻoikaika'. ʻO kāna hui hana kūikawā e wehe ana i nā ʻano hou o ka hana hou ʻana o nā hāmeʻa lapaʻau. Aia mākou i kēia manawa i kahi au gula o ka holomua lapaʻau i hoʻokele ʻia e ka ʻepekema mea, a ʻo TPU kekahi o nā hōkū o kēia au.
Ka manawa hoʻouna: ʻOkakopa-09-2025