I kēia lā e holomua wikiwiki nei ka ʻenehana lapaʻau, kahi mea polymer i kapa ʻiapolyurethane thermoplastic (TPU)ke hoʻāla mālie nei i kahi kipi. ʻO ke kiʻi TPU oYantai Linghua New Material Co., Ltd.ke lilo nei ia i mea koʻikoʻi koʻikoʻi 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 a pau, mai nā ʻeke infusion kuʻuna a hiki i nā mea olakino hiki ke ʻoki ʻia.
1) Hiʻona kumu: No ke aha i makemake ai ka ʻoihana lapaʻau i ka TPU?
TPU kiʻiʻoniʻoniʻaʻole ia he kiʻiʻoniʻoni plastik maʻamau. Hoʻohui ia i ka elasticity o ka lāʻau me ka ikaika o ka plastic, e hāʻawi ana i ka hoʻololi ʻole ʻia no ka hoʻolālā lāʻau lapaʻau.
ʻO ka biocompatibility maikaʻi loa a me ka palekana: ʻO ka TPU lāʻau lapaʻau e pili pono ana i nā kūlana biocompatibility e like me ISO 10993, e hōʻoiaʻiʻo ʻole i ka sensitization a i ʻole nā mea ʻawaʻawa i ka wā e pili ana me ka ʻiʻo kanaka a i ʻole ke koko, e hōʻemi nui ana i ka pilikia o ka maʻi.
ʻO ka hana mechanical maikaʻi loa: He kiʻi kiʻi TPU ka ikaika tensile kiʻekiʻe (maʻa mau> 30 MPa), elongation kiʻekiʻe loa i ka wā haki (> 500%), a me ke kūpaʻa waimaka maikaʻi loa (> 30 kN / m), e hana i ka mea kani i ka lōʻihi a hiki ke kū i ka hoʻopololei pinepine ʻana, kūlou, a me ka hoʻopiʻi ʻana me ka ʻole o ka pōʻino.
-Malu a me ka ea permeability: ʻO nā waiwai porous a hydrophilic o TPU kiʻiʻoniʻoni e ʻae i ka mahu wai e hele manuahi i ka wā e pale ana i ka wai wai a me ka bacteria. He mea koʻikoʻi kēia no nā ʻaʻahu ʻeha a me nā lole pale ʻokiʻoki, hiki ke mālama i ka ʻili maloʻo, hoʻoikaika i ka ho'ōla, a hoʻonui i ka hōʻoluʻolu o nā limahana lapaʻau.
-ʻO ka hoʻopā palupalu maikaʻi loa a me ka ʻike: ʻO ke kiʻi TPU kahi ʻano palupalu, e hāʻawi ana i kahi ʻoluʻolu a maikaʻi ʻole i ke kino kanaka; Hoʻomaʻamaʻa kona ʻike kiʻekiʻe i nā limahana lapaʻau e nānā i ke kaʻina hana infusion a i ʻole ka ho'ōla ʻana i ka ʻeha.
-Sterilizability: Hiki i ke kiʻi TPU ke kū i nā ʻano sterilization like ʻole, me ka ethylene oxide (EO), nā kukui gamma, a me nā kukuna electron, e hōʻoia ana i ka sterility a me ka palekana o nā huahana hopena.
2) Ka hoʻohana ʻana: Mai ke kahu "ʻike ʻole" a hiki i ke poʻo o ka naʻauao
ʻO kēia mau hiʻohiʻona oTPU kiʻiʻoniʻonie hoʻomālamalama i ke kahua lapaʻau.
-Infusion a me ka lāʻau hāʻawi ʻōnaehana: E like me ka papa o loko a me waho o nā ʻeke infusion kiʻekiʻe, nā ʻeke meaʻai, a me nā ʻeke dialysis peritoneal, ʻo ka maʻalahi o ka TPU a me ke kūpaʻa ʻana e hōʻoia i ka kūpaʻa o ka hopena lāʻau i ka wā o ka lawe ʻana a me ka hoʻohana ʻana, a ʻo kona ʻike maopopo e hoʻomaʻamaʻa i ka nānā ʻana i ka wai.
-Ka mālama ʻana i ka ʻeha a me nā ʻaʻahu: Hoʻohana nui nā ʻōnaehana wai hou a me ka hanu a me nā ʻōnaehana hōʻeha hōʻeha kino (NPWT) i ke kiʻi TPU. Hiki iā ia ke hoʻokaʻawale maikaʻi i nā mea haumia o waho a hoʻokuʻu i ka makū mai ka ʻeha, e hana ana i kahi kūlana kūpono no ka ho'ōla ʻana i ka ʻeha.
-ʻO nā huahana pale ʻana: hoʻohana ʻia no ka hana ʻana i nā papa hanu a me nā antibacterial no nā pale ʻokiʻoki, nā ʻaʻahu hoʻokaʻawale, a me nā lole pale, e hāʻawi ana i ka pale koʻikoʻi i ka wā e hoʻoponopono ai i nā wahi ʻeha o nā huahana lole ʻaʻole i ulana ʻia i mea paʻa a ʻoluʻolu ʻole.
-Nā mea lapaʻau hou: Ua lilo ke kiʻi ʻoniʻoni TPU i mea koʻikoʻi i nā mea hana interventional e like me nā catheters balloon lāʻau a me nā mea kōkua puʻuwai artificial ma muli o kona kūlike koko maikaʻi a me ka maʻalahi. Eia kekahi, i nā mea lapaʻau hiki ke hoʻohana ʻia e like me nā paʻi akamai, lawelawe ʻo TPU film ma ke ʻano he substrate i ka pilina pololei me ka ʻili, e hōʻoiaʻiʻo ana i ka hōʻoluʻolu a me ka hilinaʻi lōʻihi o ka hāmeʻa.
3) ʻO ka pōhaku kihi o ka maikaʻi: nā ʻāpana kī a me nā kūlana hoʻāʻo
No ka hōʻoia i ka hoʻokō ʻana o kēlā me kēia pūʻulu kiʻi ʻoniʻoni TPU i nā koi olakino koʻikoʻi, e nānā mākou i kahi ʻano o nā kūlana honua e hoʻokumu i ka pōhaku kihi o kona ʻano:
-Nā waiwai mīkini:
ʻO ka ikaika tensile a me ka elongation i ka wā haki: ʻO ka maʻamau maʻamau ASTM D412 e hōʻoia i ka lawa o ka ikaika a me ka elasticity o ke kiʻi.
Ka ikaika o ka waimaka: ʻO ka maʻamau maʻamau ʻo ASTM D624 e ana i kona hiki ke pale i ka hoʻolaha waimaka.
-Biocompatibility: Pono e hele i ka ISO 10993 series standard testing, he koi koi ia no ka ʻae ʻana i ka ʻoihana olakino.
-Ka hana pale:
Moisture Transmittance Rate (WVTR): ʻO nā maʻamau e like me ASTM E96 ka helu ʻana i kona hikiwawe wai, me nā waiwai kiʻekiʻe e hōʻike ana i ka maikaʻi o ka ea.
Nā waiwai pale wai: nā kūlana e like me ASTM F1670/F1671 (hoʻohana ʻia e hoʻāʻo i ke kūʻē ʻana i ke koko synthetic a me ke komo ʻana o ka maʻi virus).
-Nā hiʻohiʻona kino:
Paʻa: ASTM D2240 (Shore hardness) hoʻohana maʻamau, a ʻo ka TPU lāʻau lapaʻau maʻamau ma waena o 60A a me 90A no ka mālama ʻana i ka maʻalahi.
Ka Manaʻo o ka wā e hiki mai ana: He Mokuna Hou i ka Naʻauao a me ka Hoʻomohala Hoʻomau
4) Ke nānā nei i mua i ka wā e hiki mai ana, nā manaʻo hoʻomohala oTPU kiʻiʻoniʻonima ke kahua lapaʻau he ākea a maopopo.
-Hoʻohui akamai: I ka wā e hiki mai ana, e hoʻohui nui ʻia nā kiʻi ʻoniʻoni TPU me nā microelectronics a me nā mea ʻike e hoʻomohala i nā "kiʻiʻoniʻoni akamai" hiki ke nānā i nā ʻāpana physiological e like me ka puʻuwai puʻuwai, ke koko koko, a me ka hoʻohui ʻana i ka hou i ka manawa maoli, e hāpai ana i ka hoʻomohala ʻana i ka lāʻau lapaʻau pilikino.
-Biodegradable TPU: Me ka hoʻonui ʻana i ka ʻike o ka mālama ʻana i ke kaiapuni, ʻo ka hoʻomohala ʻana i nā mea TPU i hiki ke hoʻomalu ʻia e hoʻohaʻahaʻa a hoʻopaʻa ʻia e ke kino o ke kanaka i loko o vivo e lilo i alakaʻi kumu no ka hanauna hou o nā mea implantable, e like me nā stent vascular absorbable a me nā kiko ʻenehana ʻenehana.
-Ka hoʻololi ʻana o ka ʻili: Ma ka hāʻawi ʻana i nā kiʻiʻoniʻoni TPU me ka antibacterial, anticoagulant, a i ʻole ka hoʻoikaika ikaika ʻana i ka ulu ʻana o ka cell ma o ka ʻenehana honua, e hoʻonui hou ʻia kāna noi ʻana i nā implants kiʻekiʻe a me ka mālama ʻana i nā ʻeha paʻakikī.
Manaʻo ʻo Yantai Linghua New Material Co., Ltd. ua ulu ka kiʻiʻoniʻoni TPU mai kahi 'mea hoʻololi' i kahi 'mea hoʻoikaika'. ʻO kāna hui hoʻokō kūʻokoʻa e wehe ana i nā ana hou o ka hana hou o ka lāʻau lapaʻau. Aia mākou i kahi makahiki gula o ka holomua lapaʻau i alakaʻi ʻia e ka ʻepekema waiwai, a ʻo TPU ka mea kānalua kekahi o nā hōkū o kēia au. ”
Ka manawa hoʻouna: Oct-09-2025