Umthungo obambekayo
Ama-Sutures abambekayo aphinde ahlukaniswe abe: amathumbu, ahlanganiswe ngamakhemikhali (PGA), nama-collagen sutures emvelo ahlanzekile kuye ngezinto kanye nezinga lokumuncwa.
1. Amathumbu ezimvu: Enziwa ngamathumbu ezimvu esilwane esinempilo kanye namathumbu embuzi futhi aqukethe izingxenye ze-collagen. Ngakho-ke, akudingekile ukususa intambo ngemuva kwe-suturing. Ulayini wamathumbu wezokwelapha: ulayini ojwayelekile wamathumbu kanye nolayini we-chrome gut, womabili angamuncwa. Ubude besikhathi esidingekayo sokumuncwa buncike ekushubeni kwamathumbu kanye nesimo sethishu. Ivamise ukumuncwa izinsuku eziyisi-6 kuye kwezingama-20, kodwa umehluko ngamunye uthinta inqubo yokumuncwa noma ngisho nokumunca. Njengamanje, amathumbu enziwe ngamaphakheji e-aseptic alahlwayo, okulula ukuwasebenzisa.
(1) Amathumbu avamile: ithumbu elimunca kalula elenziwe ngezicubu ze-submucosal zesisu noma ithumbu lenkomo. Ukumuncwa kuyashesha, kodwa izicubu zisabela kancane emathunjini. Ivame ukusetshenziselwa ukuphulukisa imithambo yegazi ngokushesha noma izicubu ezingaphansi kwe-ligature yegazi kanye namanxeba angenwe yi-suture. Ivame ukusetshenziswa ezingqimbeni ze-mucosal ezifana nesibeletho nesinye.
(2) I-Chrome gut: Lawa mathumbu enziwa ukwelashwa kwe-chromic acid, okunganciphisa izinga lokumuncwa kwezicubu, futhi kubangela ukuvuvukala okuncane kunamathumbu ajwayelekile. Ngokujwayelekile isetshenziselwa ukuhlinzwa kwezifo zabesifazane kanye nomchamo, i-suture evame ukusetshenziswa ekuhlinzweni kwezinso kanye ne-ureter, ngoba usilika uzokhuthaza ukwakheka kwamatshe. Gcoba emanzini anosawoti ngesikhathi sokusebenzisa, qondisa ngemva kokuthambisa, ukuze kube lula ukusebenza.
2, ulayini wokuhlanganisa amakhemikhali (i-PGA, i-PGLA, i-PLA): i-polymer linear material eyenziwe ubuchwepheshe bamakhemikhali besimanje, ngenqubo yokudweba, ukumboza nezinye izinqubo, ngokuvamile imuncwa phakathi kwezinsuku ezingu-60-90, ukuzinza kokumuncwa. Uma kuyimbangela yenqubo yokukhiqiza, kunezinye izingxenye zamakhemikhali ezingaboli, ukumuncwa akuphelele.
I-3, i-collagen suture yemvelo ehlanzekile: ethathwe ku-tendon yezilwane ezikhethekile ze-raccoon, okuqukethwe okuphezulu kwe-collagen yemvelo, inqubo yokukhiqiza ngaphandle kokubamba iqhaza kwezingxenye zamakhemikhali, inezici ze-collagen; okwesizukulwane samanje sesine seqiniso se-sutures. Inokumuncwa okuphelele, amandla aqine kakhulu, i-biocompatibility enhle, futhi ikhuthaza ukukhula kwamangqamuzana. Ngokusho kobukhulu bomzimba womugqa, ngokuvamile imunca izinsuku ezingu-8-15, futhi ukumuncwa kuzinzile futhi kuthembekile, futhi awukho umehluko osobala womuntu.
Isikhathi sokuthumela: Jul-19-2020
