Nā ʻano plastik i hoʻohana pinepine ʻia i ka hana ʻana i nā mea lapaʻau a pehea e hana ʻia ai
He kuleana koʻikoʻi ko nā palakiko i ka mālama ola kino o kēia wā. He nui nā mea lapaʻau—mai nā syringe hoʻolei a me nā ʻeke IV a hiki i nā tubing a me nā ʻāpana diagnostic—e hilinaʻi nei i nā mea polymer no ka mea he māmā lākou, malleable, ʻano haʻahaʻa ke kumu kūʻai, a hiki ke hana nui ʻia me ka maikaʻi mau. Eia kekahi, hiki ke hana ʻia nā palakiko i mea e kūʻē i nā kemika, moakaka, palupalu, a paʻa paha, a kūpono me nā ʻano sterilization kikoʻī. Eia naʻe, ʻaʻole kūpono nā palakiko āpau no nā noi lapaʻau: pono e noʻonoʻo ke koho ʻana i ke ʻano palakiko i ka biocompatibility, ke kūʻē ʻana i ka wela/radiation, ka pilikia o ka neʻe ʻana o ka mea hoʻohui, a me nā kūlana hoʻoponopono.
Eia nā ʻano palakika i hoʻohana pinepine ʻia i ka hana ʻana i nā mea lapaʻau me ka wehewehe ʻana i ke ʻano o ka hana ʻia ʻana (ʻo ka hana ʻana i nā mea a me ke kaʻina hana o ka hoʻokumu ʻana iā lākou i huahana).
1. Polypropylene (PP)
Nā hoʻohana maʻamau: nā syringe (barela), nā ipu laʻana, nā ʻōmole lāʻau lapaʻau, nā pāpale a me nā ʻāpana hoʻolei hoʻolei, nā mea hana ʻoki maʻalahi, nā ʻōpala lapaʻau.
Nā Pōmaikaʻi: māmā, paʻa loa, kūpaʻa i nā kemika, haʻahaʻa ke kumukūʻai, a kūpaʻa i ka wela e kūpono ai no kekahi mau kaʻina hana sterilization.
Nā Palena: ʻaʻole maikaʻi ke kūpaʻa/pale oxygen e like me kekahi mau plastik ʻē aʻe; i nā mahana haʻahaʻa hiki ke lilo i mea palupalu.
Pehea e hana ai i ka mea (PP polymer): Hana ʻia ʻo PP ma o ka polymerization o propylene (kahi hydrocarbon monomer) me ka hoʻohana ʻana i kahi mea hoʻoulu (e.g., ka ʻōnaehana Ziegler-Natta a i ʻole metallocene) e hana i kahi kaulahao polymer me nā waiwai hiki ke hoʻomalu ʻia (crystallinity, ikaika, a me ka maopopo).
Pehea e hana ai i nā huahana lapaʻau mai PP:
– Hoʻoheheʻe ʻia nā pellets PP a laila hoʻokomo ʻia i loko o kahi ʻōmole e hana i nā ʻāpana kikoʻī e like me nā ʻāpana syringe, nā mea hoʻohui, a i ʻole nā poʻi.
– Extrusion: e hana i kekahi mau pepa a i ʻole nā ʻaoʻao, ʻoiai ʻike pinepine ʻia ʻo PP ma ke ʻano he ʻāpana paʻa.
– Hoʻoheheʻe puhi: no kekahi mau ʻōmole a ipu hakahaka paha.
2. Polyethylene (PE: HDPE a me LDPE)
Nā hoʻohana maʻamau: nā ʻōmole lāʻau lapaʻau (HDPE), nā ʻeke palupalu a me ka ʻūpā (LDPE), nā liner, kekahi ʻano paipu maʻalahi, nā ʻāpana pale.
Nā Pōmaikaʻi: kūpaʻa i nā kemika, maʻalahi e hana, maʻalahi ka LDPE ʻoiai ʻoi aku ka paʻa o ka HDPE, uku hoʻokele waiwai.
Nā Palena: ʻaʻole kūpono nā ʻano PE āpau no nā mahana sterilization kiʻekiʻe; nā waiwai pale kinoea kūpono.
Pehea e hana ʻia ai ka mea (PE polymer): Hana ʻia ʻo PE ma o ka polymerization o ethylene. ʻO ka ʻokoʻa ma waena o HDPE a me LDPE e pili ana i ke ʻano o ke kaulahao polymer (branching) e hoʻopilikia ana i ka density a me ka stiffness.
Pehea e hana ai i ka huahana:
– Hoʻoheheʻe puhi: mea maʻamau no nā ʻōmole HDPE.
– Hoʻopuka ʻana i ka ʻiliʻili: no nā ʻeke a i ʻole nā ʻūpā LDPE.
– Hoʻoheheʻe ʻia ʻana: no nā pāpale, nā mea hoʻohui maʻalahi, a i ʻole nā ʻāpana liʻiliʻi.
3. Polyvinyl Chloride (PVC)
Nā hoʻohana maʻamau: nā paipu IV, nā ʻeke koko/IV (he nui i ka wā ma mua), nā pale maka oxygen, nā paipu palupalu, kekahi mau ʻeke blister.
Nā Pōmaikaʻi: hiki ke hana ʻia i mea maʻalahi loa, moakāka, a kūpaʻa i nā kemika he nui; kumukūʻai haʻahaʻa.
Nā Palena: Pono pinepine nā plasticizers no ka maʻalahi; ʻo ka neʻe ʻana o kekahi mau mea hoʻohui he mea hopohopo ia i kekahi mau noi. No laila, ke koho nui nei ʻo PVC i kekahi mau mea lapaʻau a i ʻole ke pani ʻia nei e nā mea ʻē aʻe, ma muli o ka hoʻolālā a me nā lula.
Pehea e hana ʻia ai ka mea (PVC polymer): hana ʻia ia ma ka polymerizing vinyl chloride. No nā noi maʻalahi, ua hui pū ʻia ʻo PVC me nā mea hoʻohui (plasticizers, heat stabilizers, etc.) e hana i kahi hui.
Pehea e hana ai i ka huahana:
– Hoʻopuka ʻana: he mea maʻamau loa ia no nā paipu lapaʻau.
– Ke kalena ʻana: no nā pepa lahilahi i hoʻopaʻa ʻia i loko o nā ʻeke.
– Kuʻihao RF/sila wela: hoʻohui i nā pepa PVC e hana i nā ʻeke infusion a i ʻole nā ʻeke koko.
4. Polycarbonate (PC)
Nā hoʻohana maʻamau: nā ʻāpana lako dialysis, nā hale o nā mea lapaʻau, nā kānana, nā mea hoʻohui moakaka, nā mea hana diagnostic e pono ai ka mōakāka a me ka ikaika kiʻekiʻe.
Nā Pōmaikaʻi: ikaika loa, kūpaʻa i ka hopena, moakaka, paʻa ke ana.
Nā Palena: ʻoi aku ke kumukūʻai; pono e loiloi ʻia ke kūʻē ʻana i kekahi mau kemika hoʻomaʻemaʻe; pono e hoʻoponopono i ke koho ʻana o ke ʻano sterilization.
Pehea e hana ʻia ai ka mea (PC polymer): Hana ʻia ka PC ma o kahi hopena polycarbonate mai kekahi mau monomers (hoʻohana ka ʻoihana i kahi kaʻina hana i kāohi paʻa ʻia no ka maʻemaʻe a me ka hana).
Pehea e hana ai i ka huahana:
– Hoʻoheheʻe ʻia ʻana o ka inikini: no nā ʻāpana moakāka pololei.
– Extrusion + machining: no nā pepa/ʻauamo i hana hou ʻia.
– Kuʻihao Ultrasonic: hoʻohana pinepine ʻia e hoʻohui i nā ʻāpana PC ma nā hāmeʻa.
5. Polystyrene (PS) a me HIPS
Nā hoʻohana maʻamau: nā kīʻaha petri, nā paipu hoʻāʻo, nā pipette hoʻolei ʻia, nā ʻāpana lab, nā pā.
Nā Pōmaikaʻi: He moakāka ka PS a maʻalahi ke hoʻoponopono; kūpono no nā lako hana hoʻokolohua he nui.
Nā Palena: palupalu iki a kaupalena ʻia ke kūpaʻa wela; ʻaʻole kūpono no nā ukana mechanical kiʻekiʻe.
Pehea e hana ai i ka mea: Hana ʻia ʻo PS mai ka polymerization o ka styrene.
Pehea e hana ai i ka huahana:
– Hoʻoheheʻe ʻia ʻana o ka inikini: no nā paipu, nā ipu, a me nā ʻāpana lab.
– Thermoforming: Hoʻomehana ʻia nā pepa PS a laila hana ʻia i loko o nā pā/ʻūpā.
6. ABS (Acrylonitrile Butadiene Styrene)
Nā hoʻohana maʻamau: nā pahu o nā mea lapaʻau, nā lima o nā mea kani, nā ʻāpana i hoʻokomo ʻole ʻia e pono ai ka paʻa.
Nā Pōmaikaʻi: ikaika, kūpaʻa i ka hopena, maʻalahi ke hana a me ke kala.
Nā Palena: pono ka hoʻāʻo ʻana no ke kūʻē ʻana i ka sterilization wela kiʻekiʻe a i ʻole kekahi mau kemika; ʻoi aku ka pinepine no ka waho/hale o ka hāmeʻa.
Pehea i hana ʻia ai ka mea: ʻO ABS kahi copolymer i hana ʻia ma ka hoʻohui ʻana i ʻekolu mau ʻāpana nui e kaulike i ka ikaika, ka paʻakikī, a me ka maʻalahi o ka hana ʻana.
Pehea e hana ai i ka huahana:
– Hoʻoheheʻe ʻia ʻana o ka inikini: ke ʻano maʻamau no nā pahu a me nā ʻāpana kūkulu.
– Hoʻopau ʻana: hiki ke pena ʻia, hoʻopololei ʻia, a i ʻole ke ʻano e kūpono i nā pono ergonomic.
7. Polyurethane (PU)
Nā hoʻohana maʻamau: kekahi mau catheters, nā ʻaʻahu ʻeha, nā pads, nā paipu palupalu kūikawā, nā ʻāpana e pono ai ka elasticity.
Nā Pōmaikaʻi: maʻalahi loa, hiki ke palupalu a paʻakikī paha ma muli o ke ʻano o ka hana ʻana, loaʻa i kekahi mau ʻano ke kūpaʻa maikaʻi i ka abrasion.
Nā Palena: pili nui nā waiwai i ka hoʻohui ʻana; koi i ka kaohi paʻa no ke kūlike a me ka palekana.
Pehea e hana ai i ka mea hana: Hana ʻia ʻo PU ma o kahi hopena ma waena o nā ʻāpana isocyanate a me polyol e hana i kahi polymer me nā ʻano hiki ke hoʻololi ʻia.
Pehea e hana ai i ka huahana:
– Hoʻopuka ʻana: no nā paipu/nā catheter.
– Ke hoʻoheheʻe ʻana a i ʻole ka hoʻoheheʻe ʻana i ka hopena (RIM): no kekahi mau ʻāpana elastomeric.
- Uhi ʻana: Hoʻohana pinepine ʻia ʻo PU ma ke ʻano he uhi ʻana ma luna o nā ʻili e hōʻemi i ka friction.
8. Silikoni (Elastomer silikoni)
Nā hoʻohana maʻamau: nā paipu lapaʻau, nā sila, nā catheters, nā ʻāpana e pili ana i ke kino no ka wā lōʻihi, kekahi mau mea hanu.
Nā Pōmaikaʻi: biocompatible, paʻa ma luna o kahi ākea o ka mahana, maʻalahi, a kū i nā kaʻina hana sterilization he nui.
Nā Palena: ʻoi aku ke kumukūʻai; hiki ke paʻakikī ke kaʻina hana ma mua o nā plastik waiwai.
Pehea e hana ai i ka mea hana: ʻo ka silicone elastomer kahi polymer i hoʻokumu ʻia ma ka siloxane a laila hoʻopulapula ʻia/hoʻōla ʻia (no ka laʻana me kahi ʻōnaehana platinum-cure a peroxide paha) e lilo i elastomer.
Pehea e hana ai i ka huahana:
– Hoʻopuka ʻana + hoʻōla ʻana: mea maʻamau no nā hose silicone.
– Hoʻoheheʻe ʻia/hoʻoili ʻana: no nā sila a me nā ʻāpana ʻano paʻakikī.
– Ke hoʻoheheʻe ʻia ʻana o ka Liquid Silicone Rubber (LSR): no nā huahana kikoʻī me ka hana nui.
9. PTFE (Teflon) a me nā fluoropolymers ʻē aʻe
Nā hoʻohana maʻamau: nā uhi mea hana, nā paipu kūikawā, nā ʻāpana e pono ai ka friction haʻahaʻa a me ke kūpaʻa kemika kiʻekiʻe.
Nā Pōmaikaʻi: kūpaʻa loa i nā kemika, haʻahaʻa ke koina o ka friction, paʻa.
Nā Palena: paʻakikī ke hana e like me nā plastics maʻamau ma muli o ke kiko heheʻe/viscosity; kumukūʻai kiʻekiʻe.
Pehea e hana ai a hoʻonohonoho:
– Hana ʻia nā Fluoropolymers e like me PTFE ma o ka polymerization o kekahi mau monomers fluorinated a hana pinepine ʻia e ka paste extrusion, sintering, a i ʻole nā ʻano hana kūikawā ʻē aʻe no ka mea ʻokoʻa ko lākou ʻano mai nā thermoplastics maʻamau.
Nā pae laulā o ke "kaʻina hana" o nā mea lapaʻau plastik ma ka hale hana
ʻOiai ke ʻokoʻa o nā kikoʻī no kēlā me kēia huahana, ʻo ke kaʻina hana hana lāʻau lapaʻau plastik e komo pū me:
1. Koho ʻana o ka resin papa lapaʻau
Ke hoʻohana nei i nā resins me nā kikoʻī lapaʻau (ka maʻemaʻe, ke kūlike o ka lot, ka palapala, a me ka hoʻāʻo biocompatibility e like me ka mea e pono ai).
2. Hoʻohuihui (inā pono)
Ke kāwili ʻana i ka resin me nā mea hoʻohui (nā mea hoʻopaʻa, nā mea hoʻoluʻu, nā mea hoʻopili plastic, nā mea hoʻopiha) me ka hoʻohana ʻana i kahi extruder hui e hoʻokō ai i ka homogeneity. No nā noi lapaʻau, ua koho pono ʻia nā mea hoʻohui e hōʻemi i ka pilikia o ka neʻe ʻana a mālama i ka hoʻohālikelike sterilization.
3. Hoʻokumu ʻana
– Hoʻoheheʻe ʻia ʻana no nā ʻāpana kikoʻī me nā mānoanoa like ʻole a me nā paia lahilahi.
– Ka hoʻopuka ʻana no nā hose, nā ʻaoʻao, a i ʻole nā kiʻiʻoniʻoni.
– Ke hoʻoheheʻe ʻana i ka puhi no nā ʻōmole a me nā ipu hakahaka.
– Ke hoʻomehana ʻana no nā pā a me nā ʻōpala.
– Elastomer hoʻoheheʻe (LSR, compression) no ka silicone a me kekahi mau ʻōpala synthetic.
4. Hoʻohui a me ka ʻākoakoa
Hiki ke hoʻohana i ka sila wela, ka wili ultrasonic, ka hoʻopaʻa ʻana i ka solvent, a i ʻole ka hoʻopaʻa ʻana i ka adhesive, ma muli o ka mea a me ka hana o ka huahana.
5. Hoʻomaʻemaʻe, kaohi maikaʻi a me ka hoʻāʻo ʻana
Hoʻokomo pū ʻia ka nānā ʻana i nā ana, ka hoʻāʻo liki (no nā paipu/ʻeke), ka hoʻāʻo ikaika pili, ka hoʻāʻo ʻāpana/maʻemaʻe, a me ka hoʻāʻo kūlike kemika.
6. Ka hoʻomaʻemaʻe ʻana a me ka hoʻopili ʻana
Hiki i nā ʻano hana sterilization ke komo pū me ka mahu (steam/autoclave), ethylene oxide (EtO), a i ʻole ka radiation (gamma/e-beam). ʻAʻole hiki i nā plastics āpau ke kū i nā ʻano hana āpau, no laila pono ke koho ʻana i nā mea e hahai i ka hoʻolālā sterilization mua. Hoʻolālā ʻia hoʻi ka ʻōpala e mālama i ka sterility a hiki i ka hoʻohana ʻana.
Pani
ʻO nā palakiko i hoʻohana pinepine ʻia i nā mea lapaʻau—e like me PP, PE, PVC, PC, PS, ABS, PU, silicone, a me PTFE—ua koho ʻia ma muli o ka hui pū ʻana o nā waiwai mechanical, ka mōakāka, ka maʻalahi, ke kū'ē ʻana i nā kemika, ke kumukūʻai, a me ka kūlike me ka sterilization a me nā lula. ʻAʻole wale kā lākou hana hana he mea o ka "molding plastic," akā he moʻo o nā kaʻina hana mai ke koho ʻana i ka resin pae lapaʻau, ka hui ʻana, ka hoʻokumu ʻana (injection/extrusion/blow/thermoforming), ka hōʻuluʻulu ʻana, ka hoʻāʻo ʻana i ka maikaʻi, a me ka sterilization. Me nā kaohi kaʻina hana paʻa, kōkua nā mea polymer i ka hāʻawi ʻana i nā mea lapaʻau palekana a maʻemaʻe hiki ke hana pono ʻia e hoʻokō i nā pono e ulu nei o ka mālama ola kino.
