Masithethe malunga nokunxiba i-hydrocolloid. Elona candelo liqhelekileyo elifunxa amanzi yi-carboxymethyl cellulose (i-CMC ngamafutshane). Le hydrocolloid yangoku ine-membrane engene ngaphakathi ngaphandle, enokwenza ukuba inxeba lingangeni moya, lingangeni manzi kunye ne-bacteria-proof, Kodwa inokuvumela umoya nomphunga wamanzi ukuba ungene. Ukubunjwa kwayo akuqukethe amanzi. Emva kokufunxa i-exudate yesilonda, iyakwenza into efana nejeli yokugubungela inxeba ukugcina indawo enenxeba ifumile, kunye nolwelo olungenamanzi olunezixhobo, oluqukethe isixa esikhulu se-enzymes, izinto zokukhula kunye ne-collagen, ukuze izicwili ze-granulation zikhule zicoceke amanxeba, kunye namanxeba anezicubu ze-necrotic anokuvelisa ukubola kwe-autologous. Le nto ifana nejeli ikwavumela ukuba isinxibo sisuswe ngaphandle kwentlungu. Ukungancedi kukuba xa ihydrocolloid ifunxa i-exudate, iya kunyibilika ibe yijeli emhlophe ejijekileyo, kwaye iya kuba nevumba elibi, elihlala liphazanyiswa lithumba kwaye lisoyika ukulisebenzisa (umfanekiso1). Kwaye amandla ayo okufunxa amanzi awanamandla, kuphela malunga nokufunxwa kwamanzi kwesiqwenga se-gauze, ke ihlala isetyenziswa amaxesha ngamaxesha ngemini xa isetyenziselwa ukukrwela okanye inxeba elinzulu. Ezinye ii-hydrocolloids ziyilelwe njengamabala amabala okanye ii-Bondi patches ukulungiselela iimeko ezahlukeneyo. Phakathi kwazo, i-J & J's hydrocolloid hydrogel engenawo amanzi kunye nokuphefumula ibizwa ngokuba yi-hydrogel, kodwa ngesiNgesi yi-Band-Aid Hydro Seal hydrocolloid gel, ke isabekwa njenge-hydrocolloid dressing. (umfanekiso1). Emva kokuba i-hydrocolloid ifunxa i-exudate, idumba ijeli ukufezekisa isiphumo sokuthambisa.
Makhe sithethe ngehydrogel, eluhlobo lwekhompawundi yehidrophilic polymer (ene-glycerin okanye amanzi). Ipesenti yamanzi ingafikelela kuma-80% -90%. Njengentsingiselo yokoqobo, yenzelwe ukuthambisa inxeba kunye nokuthambisa ischar. , Kwaye inokubonelela ngokufuma kumanxeba owomileyo ukunceda inxeba ukuvelisa isiphumo sokuzicoca. Ifom yejel inokuba yijeli engapheliyo (akukho mfanekiso), iphepha (akukho mfanekiso), okanye igauze elimithisiweyo (njenge-IntraSite Conformable dressing), okanye i-gauze elimiselweyo (njenge-IntraSite Conformable dressing). Ijeli engapheliyo inokutshintsha ngokulula i-gauze padding emanzi, kwaye ifuna ukubuyiselwa kube kanye ngosuku. Inesiphumo sokubonelela ngokuthambisa "umnikeli wokufuma" kwithishu ye-necrotic. Ukuthambisa kunye nokumanzisa kweqweqwe kungonyusa imveliso ye-collanginase ukukhuthaza ukusebenza kwe-autodebridement. Nangona kunjalo, ngenxa yomxholo wamanzi aphezulu, kufuneka kuthathelwe ingqalelo ukungachukumisi ulusu ukuthintela ukungena. Iiprogel hydrogels zidibene ngokunqamlezileyo ukuguqula i-hydrogel hydrophilic polymers zibe kwimeko eqinileyo. Iphepha lokuqala elithengiswayo elinxitywa ngehydrogel elinamanxeba kwimbali lenziwa nguGeistlich Pharma AG, inkampani ebizwa ngokuba yiGeistlich Pharma AG. "IGeely Bao Geliperm" yasungulwa ngo-1977. Inamanzi ayi-96%, i-1% ye-agar kunye ne-3% ye-polyacrylamide. Isizukulwana sesibini seGeely Bao Geliperm songeza i-35% ye-glycerol, ukwenzela ukukhuthaza ukufakwa kwamanzi. Ke ngoko, ijeli kunye nehydrogel yokunxiba (iphepha lehydrogels) zinokuqanjwa okufanayo, ngaphandle kokuba isinxibo sehydrogel sinomxholo omncinci wamanzi ukulungiselela ukufunxwa kwesixa esincinci se-exudate. Njengesikhumba esenziwe ngumntu, zinokusetyenziselwa kuphela ukuphuma, kwaye zibonelele ngendawo emanzi yamanxeba. Kodwa xa ifunxa amanzi, ayizukuvuza ngenxa yokuxinana, kwaye iphepha eliqinileyo elifana nehydrogel linendlela eyodwa "yokupholisa" kunye nokuthomalalisa ulusu, ukuze isetyenziselwe ukutsha kunye namanxeba abuhlungu (ukuba kukho imfuneko, phantsi iimeko ezithile, isinxibo sehydrogel esingacacanga sinokukhenkciswa efrijini kuqala, emva koko sikhutshwe xa sisetyenziselwa ukudlala isiphumo sokupholisa). Ukongeza, inokusetyenziselwa ukunyanga irhashalala kunye neesingci. , Kwaye ngenxa yokuba icacile, kufanelekile ukugcina inxeba. Olu hlobo lokunxiba amaphepha luhlala longeza umaleko wefilimu engenamanzi ngaphandle ukuthintela ukulahleka kwamanzi, ukuthintela ijeli ukuba ingafakwa ngaphandle kwaye yonyuse amandla okuncamathela ukuyikhusela ukuba ingawi. Olu hlobo lokunxiba alunakungenisa manzi kakuhle kwaye alunakusetyenziselwa amanxeba ane-fluid eninzi okanye usulelo, kungenjalo kulula ukuvelisa ukungena kolusu ejikeleze inxeba, eliya kuba nencasa okanye iblister eshinyeneyo, okanye iya kukhuthaza ukwanda yeebhaktheriya kwilonda elosulelekileyo. . Ngokwencwadi yesikhokelo, le nto yokunxiba i-hydrogel ilungile kuwo nawaphi na amanxeba angaphandle, njengokutsha kwinqanaba lesibini, amanxeba esifo seswekile, ukonzakala okutyumkileyo, okanye imivumbo. Ukuba eyona nto iphambili kwiphepha le-hydrogel elinjengephepha ngamanzi, xa lisetyenziswa enxebeni elivulekileyo, kufuneka lisikwe ukuze lilungele ukumila kwenxeba. Musa ukuchukumisa ulusu ecaleni kwenxeba ukunqanda ukungena. Nangona kunjalo, ukuba eyona nto iphambili yi-glycerin, iphepha elinjenge-hydrogel linokusetyenziswa kulusu ecaleni kwesilonda. Kukho ithuba elincinci lokungena, kodwa olu hlobo lokunxiba olusekwe kwi-glycerin lunqabile.
Kuba ukunxitywa kwephepha le-hydrogel kunezinto ezininzi eziluncedo, kutheni kungasasetyenziswa rhoqo kushishino lwenxeba kude kube ngoku? Ndicinga ukuba eyona nto ibaluleke kakhulu lixabiso, kwaye zininzi kakhulu ezinye iimveliso (ezinje ngomqhaphu wolwandle, isinxibo sehydrocolloid, amagwebu e-PU, njl.).
Ixesha Post: Jul-14-2021