Cia peb tham txog kev hnav khaub ncaws hydrocolloid. Cov khoom siv feem ntau uas nqus dej yog carboxymethyl cellulose (CMC luv). Cov hydrocolloid tam sim no muaj ib nrab daim nyias nyias nyob sab nraud, uas tuaj yeem ua rau lub qhov txhab tiv thaiv kab mob, tsis muaj dej thiab kab mob-pov thawj, Tab sis nws tuaj yeem tso cua thiab dej ua kom nkag mus. Nws muaj pes tsawg leeg tsis muaj dej. Tom qab nqus qhov txhab exudate, nws yuav tsim cov tshuaj zoo li gel los npog lub qhov txhab kom lub qhov txhab ntub, thiab cov ntaub so ntswg nqus tau, Muaj ntau ntau cov enzymes, kev loj hlob thiab collagen, yog li cov ntaub so ntswg tuaj yeem loj hlob los ntawm kev huv qhov txhab, thiab qhov txhab nrog cov nqaij mos necrotic tuaj yeem tsim kev puas tsuaj rau tus kheej. Cov khoom zoo li gel no tseem tso cai rau hnav khaub ncaws kom raug tshem tawm yam tsis muaj mob. Qhov tsis zoo yog tias thaum hydrocolloid nqus tau cov exudate, nws yuav yaj mus rau hauv cov kua dej dawb dawb, thiab yuav muaj ntxhiab tsw, uas feem ntau yuam kev rau qhov mob thiab ntshai siv nws (duab 1). Thiab nws lub peev xwm nqus dej tsis muaj zog, tsuas yog hais txog kev nqus dej ntawm ib daim ntawm daim ntaub, yog li nws feem ntau siv ob peb zaug hauv ib hnub thaum nws siv rau khawb lossis mob tob. Qee qhov hydrocolloids txawm tias tsim los ua thaj ua pob txuv lossis thaj ua rau thaj Bondi los pab txhawb ntau lub sijhawm. Ntawm lawv, J & J's hydrocolloid hydrogel waterproof thiab breathable stretch yog hu ua hydrogel, tab sis ua lus Askiv nws yog Band-Aid Hydro Seal hydrocolloid gel, yog li nws tseem raug cais ua hydrocolloid hnav. (daim duab 1). Tom qab hydrocolloid nqus cov exudate, nws swells rau hauv cov gel kom ua tiav cov dej noo.
Cia peb tham txog hydrogel, uas yog ib hom sib xyaw hydrophilic polymer (muaj glycerin lossis dej). Cov dej feem pua tuaj yeem siab txog 80%-90%. Raws li lub ntsiab lus tseem ceeb, nws tau tsim los ua kom lub qhov txhab ntub thiab ua kom cov eschar. , Thiab tuaj yeem muab cov dej noo kom qhuav rau qhov txhab kom pab lub qhov txhab ua kom huv. Daim ntawv gel tuaj yeem yog gel tsis muaj hnub kawg (tsis muaj daim duab), ntawv (tsis muaj duab), lossis cov ntaub qhwv tsis huv (xws li IntraSite Conformable dressing), lossis cov ntaub qhwv tsis huv (xws li IntraSite Hnav Tau Zoo) Indefinite gel tuaj yeem hloov pauv cov ntaub ntub dej ntub tau yooj yim, thiab tsuas yog xav tau hloov ib zaug ib hnub. Nws muaj cov txiaj ntsig ntawm kev muab cov dej noo "pub dawb" rau cov nqaij mos necrotic. Qhov muag muag thiab ua kom noo ntawm cov tawv ntoo tuaj yeem ua rau cov khoom lag luam collanginase los txhawb kev ua kom zoo dua qub. Txawm li cas los xij, vim nws cov dej muaj cov ntsiab lus siab, yuav tsum tau saib xyuas kom tsis txhob kov cov tawv nqaij kom tsis txhob nkag mus. Cov ntawv hydrogels tau hla kev sib txuas los hloov cov hydrogel hydrophilic polymers rau lub xeev ruaj khov. Thawj cov khoom lag luam muaj ntawv hydrogel hnav rau qhov txhab hauv keeb kwm tau tsim los ntawm Geistlich Pharma AG, lub tuam txhab hu ua Geistlich Pharma AG. "Geely Bao Geliperm" tau tsim tawm xyoo 1977. Nws muaj 96% dej, 1% agar, thiab 3% polyacrylamide. Qhov thib ob ntawm Geely Bao Geliperm ntxiv 35% glycerol, txhawm rau txhawb nws cov peev txheej nqus dej. Yog li ntawd, gel thiab hydrogel hnav khaub ncaws (ntawv hydrogels) muaj cov sib xws sib xws, tshwj tsis yog tias cov ntawv hydrogel hnav khaub ncaws muaj cov dej tsawg dua los pab txhawb kev nqus me me ntawm cov exudate. Zoo li cov tawv nqaij dag, lawv tsuas tuaj yeem siv rau exudation, thiab muab qhov chaw noo rau qhov txhab. Tab sis thaum nws nqus dej, nws yuav tsis ntws tawm vim nyem, thiab cov ntawv zoo li hydrogel muaj qhov tshwj xeeb "txias" thiab ua kom zoo rau ntawm daim tawv nqaij, yog li nws tuaj yeem siv rau qhov kub hnyiab thiab mob qhov txhab (Yog tias tsim nyog, hauv qab) qee yam mob, qhov hnav khaub ncaws hydrogel kuj tseem tuaj yeem tso rau hauv lub tub yees ua ntej, thiab tom qab ntawd tshem tawm thaum siv los ua kom txias). Tsis tas li ntawd, nws kuj tseem tuaj yeem siv los kho tus mob qhua pias thiab kab mob qhua pias. , Thiab vim nws yog pob tshab, nws yooj yim los soj ntsuam qhov txhab. Cov ntawv zoo li no hnav feem ntau ntxiv txheej txheej zaj duab xis tiv thaiv dej rau sab nrauv kom tiv thaiv kom tsis txhob poob dej, tiv thaiv cov kua los ntawm kev nyem tawm thiab ua kom nws cov nplaum nplaum tiv thaiv kom nws tsis txhob ntog. Cov khaub ncaws zoo li no yuav tsis nqus dej tau zoo heev thiab tsis tuaj yeem siv rau qhov txhab nrog cov kua ntau dhau lossis kis kab mob, txwv tsis pub nws yooj yim los tsim cov tawv nqaij nkag mus ib ncig ntawm lub qhov txhab, uas yuav muaj saj lossis cov hlwv tuab, lossis nws yuav txhawb kev nthuav dav ntawm cov kab mob hauv qhov txhab mob. . Raws li phau ntawv qhia, kev hnav khaub ncaws hydrogel no haum rau txhua qhov txhab, xws li kub nyhiab thib ob, mob ntshav qab zib ko taw, tsoo qhov raug mob, lossis ua pob. Yog tias cov khoom tseem ceeb ntawm daim ntawv zoo li hydrogel yog dej, thaum nws tau siv rau hauv qhov txhab qhib, nws yuav tsum tau txiav kom haum rau qhov zoo ntawm qhov txhab. Tsis txhob kov daim tawv nqaij ib sab ntawm lub qhov txhab kom tsis txhob nkag mus. Txawm li cas los xij, yog tias cov khoom tseem ceeb yog glycerin, daim ntawv zoo li hydrogel tuaj yeem siv rau ntawm daim tawv nqaij ib sab ntawm lub qhov txhab. Muaj tsawg txoj hauv kev nkag mus rau hauv, tab sis hom hnav khaub ncaws raws li glycerin tsis tshua muaj.
Txij li daim ntawv hnav khaub ncaws hydrogel muaj ntau qhov zoo, vim li cas lawv thiaj tseem tsis tau siv dav hauv qhov txhab kom txog rau tam sim no? Kuv xav tias qhov tseem ceeb tshaj plaws yog tus nqi, thiab muaj ntau txoj hauv kev xaiv khoom lag luam (xws li paj rwb seaweed, hnav khaub ncaws hydrocolloid, PU ua npuas ncauj, thiab lwm yam).
Sijhawm Tshaj Tawm: Jul-14-2021