Hauv kev siv tshuab kho mob niaj hnub no uas nce qib sai heev, cov khoom siv polymer hu uaCov khoom siv thermoplastic polyurethane (TPU)tab tom ua rau muaj kev hloov pauv sai sai. Zaj duab xis TPU ntawmYantai Linghua Tshiab Khoom Co., Ltd.tab tom dhau los ua ib yam khoom tseem ceeb hauv kev tsim cov khoom siv kho mob siab vim nws ua tau zoo heev thiab sib xws nrog lub cev. Nws muaj nyob txhua qhov chaw, los ntawm cov hnab tshuaj infusion ib txwm mus rau cov khoom siv kho mob hnav tau tshiab.
1) Lub ntsiab lus tseem ceeb: Vim li cas kev lag luam kho mob thiaj nyiam TPU?
TPU zaj duab xistsis yog ib daim yas yas ib txwm muaj. Nws muab qhov elasticity ntawm roj hmab nrog lub zog ntawm yas ua ke, muab qhov yooj ywm tsis tau muaj dua rau kev tsim cov khoom siv kho mob.
-Kev sib haum xeeb zoo heev thiab kev nyab xeeb: Qib kho mob TPU ua raws li cov qauv kev sib haum xeeb xws li ISO 10993, kom ntseeg tau tias tsis muaj kev tsis haum lossis tsis muaj tshuaj lom thaum sib cuag nrog tib neeg cov ntaub so ntswg lossis ntshav, txo qhov kev pheej hmoo ntawm tus neeg mob.
-Kev ua tau zoo heev ntawm cov khoom siv kho tshuab: Zaj duab xis TPU muaj lub zog tensile siab (feem ntau> 30 MPa), elongation siab heev thaum tawg (> 500%), thiab kev tiv thaiv kua muag zoo heev (> 30 kN / m), ua rau cov cuab yeej ruaj khov heev thiab muaj peev xwm tiv taus kev ncab, khoov, thiab nias tsis muaj kev puas tsuaj.
-Ntsuab thiab cua permeability: Cov khoom porous lossis hydrophilic ntawm TPU zaj duab xis tso cai rau cov pa dej kom hla dhau thaum thaiv cov kua dej thiab cov kab mob. Qhov no yog qhov tseem ceeb rau cov ntaub qhwv qhov txhab thiab cov khaub ncaws tiv thaiv phais, uas tuaj yeem ua rau daim tawv nqaij qhuav, txhawb kev kho mob, thiab txhim kho kev nplij siab ntawm cov neeg ua haujlwm kho mob.
-Kev kov mos mos thiab pob tshab zoo heev: Zaj duab xis TPU muaj cov qauv mos mos, muab kev xis nyob thiab tsis muaj qhov tsis sib xws rau tib neeg lub cev; Nws qhov kev pom tseeb siab pab cov neeg ua haujlwm kho mob kom soj ntsuam cov txheej txheem infusion lossis kho qhov txhab.
-Kev ua kom tsis muaj menyuam: Zaj duab xis TPU tuaj yeem tiv taus ntau txoj kev ua kom tsis muaj menyuam, suav nrog ethylene oxide (EO), gamma rays, thiab electron beams, ua kom ntseeg tau tias cov khoom kawg tsis muaj menyuam thiab muaj kev nyab xeeb.
2) Daim ntawv thov: Los ntawm "kev saib xyuas tsis pom" mus rau pem hauv ntej ntawm kev txawj ntse
Cov yam ntxwv ntawmTPU zaj duab xisua kom nws ci ntsa iab hauv kev kho mob:
-Kev xa tshuaj thiab tshuaj: Raws li cov khoom siv sab hauv thiab sab nraud ntawm cov hnab tshuaj zoo, cov hnab khoom noj khoom haus, thiab cov hnab lim ntshav hauv plab, TPU qhov yooj ywm thiab kev sib txhuam ua kom ntseeg tau tias qhov ruaj khov ntawm cov tshuaj thaum lub sijhawm thauj mus los thiab siv, thiab nws qhov pob tshab ua rau kev soj ntsuam cov kua dej yooj yim.
-Kev saib xyuas qhov txhab thiab kev hnav khaub ncaws: Cov khaub ncaws tshiab uas tsis ntub dej thiab ua pa tau thiab cov txheej txheem kho qhov txhab uas muaj siab tsis zoo (NPWT) siv cov zaj duab xis TPU ntau heev. Nws tuaj yeem cais cov pa phem sab nraud thiab tshem cov dej noo tawm ntawm qhov txhab, tsim kom muaj ib puag ncig zoo rau kev kho qhov txhab.
-Cov khoom tiv thaiv kev phais: siv los tsim cov txheej ua pa thiab cov tshuaj tua kab mob rau cov ntaub phais, cov khaub ncaws cais tawm, thiab cov khaub ncaws tiv thaiv, muab kev tiv thaiv tseem ceeb thaum daws cov teeb meem mob ntawm cov khoom siv tsis-woven ib txwm ua tsis taus pa thiab tsis xis nyob.
-Cov khoom siv kho mob tshiab: Zaj duab xis TPU tau dhau los ua ib qho tseem ceeb hauv cov khoom siv kho mob xws li cov catheter uas muaj lub raj xa tshuaj thiab cov khoom siv pab lub plawv vim nws cov ntshav sib xws thiab yooj ywm heev. Tsis tas li ntawd xwb, hauv cov khoom siv kho mob hnav tau xws li cov ntaub nplaum ntse, zaj duab xis TPU ua haujlwm ua lub hauv paus rau kev sib cuag ncaj qha nrog daim tawv nqaij, ua kom ntseeg tau tias lub cuab yeej xis nyob thiab siv tau ntev.
3) Lub hauv paus ntawm qhov zoo: cov kev ntsuas tseem ceeb thiab cov qauv xeem
Yuav kom ntseeg tau tias txhua pawg ntawm TPU zaj duab xis ua tau raws li cov kev cai kho mob nruj, peb xa mus rau ntau tus qauv thoob ntiaj teb uas tsim lub hauv paus ntawm nws qhov zoo:
-Cov khoom siv kho tshuab:
Lub zog tensile thiab elongation thaum tawg: Tus qauv ASTM D412 feem ntau siv ua kom cov yeeb yaj kiab muaj lub zog thiab elasticity txaus.
Lub zog tsim kua muag: Tus qauv ASTM D624 feem ntau siv ntsuas nws lub peev xwm los tiv taus kev tsim kua muag.
-Biocompatibility: Yuav tsum dhau ISO 10993 series tus qauv kev xeem, uas yog qhov yuav tsum tau ua rau kev tso cai ua lag luam khoom siv kho mob.
-Kev ua tau zoo ntawm kev thaiv teeb meem:
Tus Nqi Tiv Thaiv Dej (WVTR): Cov qauv xws li ASTM E96 ntsuas nws cov dej pa permeability, nrog rau cov nqi siab dua qhia tau tias huab cua permeability zoo dua.
Cov khoom thaiv kua: cov qauv xws li ASTM F1670/F1671 (siv los sim kev tiv thaiv cov ntshav tsim thiab kev nkag mus rau hauv cov kab mob).
-Cov yam ntxwv ntawm lub cev:
Kev Nyuaj Siab: ASTM D2240 (Shore hardness) feem ntau yog siv, thiab qib kho mob TPU feem ntau yog nruab nrab ntawm 60A thiab 90A kom tswj tau qhov yooj ywm.
Yav Tom Ntej Saib: Ib Tshooj Tshiab Hauv Kev Txawj Ntse Thiab Kev Txhim Kho Kom Ruaj Khov
4) Saib rau yav tom ntej, kev cia siab ntawm kev loj hlobTPU zaj duab xisnyob rau hauv kev kho mob yog dav thiab meej:
-Kev koom ua ke ntse: Yav tom ntej, TPU zaj duab xis yuav sib koom ua ke nrog microelectronics thiab sensors kom tob dua los tsim "zaj duab xis ntse" uas tuaj yeem saib xyuas cov yam ntxwv ntawm lub cev xws li lub plawv dhia, ntshav qab zib, thiab cov hws hauv lub sijhawm tiag tiag, txhawb kev txhim kho tshuaj kho mob tus kheej.
-TPU uas lwj tau: Nrog rau kev paub txog kev tiv thaiv ib puag ncig, kev tsim cov khoom siv TPU uas tuaj yeem tswj tau kom lwj lossis nqus tau los ntawm lub cev tib neeg hauv vivo yuav dhau los ua qhov kev coj ua tseem ceeb ntawm tiam tom ntej ntawm cov khoom siv cog rau hauv lub cev, xws li cov hlab ntsha uas nqus tau thiab cov hlab ntsha tsim cov ntaub so ntswg.
-Kev hloov kho qhov chaw ua haujlwm: Los ntawm kev muab TPU zaj duab xis nrog cov tshuaj tua kab mob, tshuaj tiv thaiv kev coagulation, lossis txhawb nqa kev loj hlob ntawm tes los ntawm kev siv tshuab nto, nws daim ntawv thov hauv kev cog hniav siab thiab kev kho mob qhov txhab nyuaj yuav raug nthuav dav ntxiv.
Yantai Linghua New Material Co., Ltd. ntseeg tias zaj duab xis TPU tau loj hlob los ntawm 'khoom siv hloov' mus rau 'khoom siv txhawb zog'. Nws qhov kev ua tau zoo tshwj xeeb yog qhib qhov tshiab ntawm kev tsim kho tshiab ntawm cov khoom siv kho mob. Tam sim no peb nyob rau hauv lub hnub nyoog kub ntawm kev nce qib kho mob uas tsav los ntawm cov ntaub ntawv tshawb fawb, thiab TPU yog ib qho ntawm cov hnub qub ntawm lub sijhawm no.
Lub sijhawm tshaj tawm: Lub Kaum Hli-09-2025