Niki PLLA Ac Acide Poly-l-lactique Acide ）？

PLLA ni iki?

Mu myaka yashize, polymers ya acide lactique yagiye ikoreshwa cyane muburyo butandukanye bwubuvuzi, nka: suture ishobora kwinjizwa, insimburangingo zo mu nda hamwe nudusimba tworoheje, nibindi, na aside poly-L-lactique yakoreshejwe cyane muburayi kugirango ivure mumaso gusaza.

Bitandukanye nibikoresho bizwi cyane byo kwisiga byuzuye nka acide hyaluronike, allogeneic collagen hamwe namavuta ya autologique, PLLA (acide poly-L-lactique) ni iyaruka rishya ryibikoresho bivura ubuvuzi.

Nibikoresho byubuvuzi byakozwe numuntu bishobora kubora no kwinjizwa, bifite biocompatibilité nziza kandi byangirika, kandi bishobora kubora mo dioxyde de carbone namazi yonyine mumubiri.

PLLA imaze imyaka igera kuri 40 ikoreshwa cyane mu buvuzi kubera umutekano wayo, kandi nyuma yo gukoreshwa mu bijyanye n’ubuvuzi bw’ubuvuzi, yagiye ibona impushya zitangwa n’inzego zibishinzwe zemewe mu bihugu byinshi:

1. Mu 2004, PLLA yemerewe mu Burayi kuvura lipoatrophy nini yo mu maso.

2. Muri Kanama 2004, FDA yemeje PLLA yo gutera inshinge zo kuvura amavuta yo mu maso aterwa na virusi.

3. Muri Nyakanga 2009, FDA yemeje PLLA kuburibwe bworoheje kandi bukabije, izuru ryo mumaso hamwe nizindi nkari zo mumaso kubarwayi bafite ubuzima bwiza.

Impamvu zo gusaza

Dermis y'uruhu igizwe na kolagen, elastine, na glycosamine, muri byoamakarito ya kolagen arenga 75%, kandi nikintu cyingenzi kigumana umubyimba wuruhu hamwe nuburyo bworoshye bwuruhu.

Gutakaza kolagen nimpamvu nyamukuru yo kumena urusobe rwa elastike rushyigikira uruhu, kugabanuka no gusenyuka kwinyama zuruhu, no kugaragara kwumye, gukabije, kurekuye, kubyimba nibindi bintu bishaje kuruhu!

Kolagen ihagije irashobora gutuma ingirabuzimafatizo zuruhu zisimbuka, bigatuma uruhu rutose, rworoshye kandi rworoshye, kandi rukarinda gusaza uruhu.

PLLA irashobora guhaza gusa uruhu rukenewekuvugurura kwa kolagen. Ifite ingaruka zikomeye zo kuzamura umuvuduko wubwiyongere bwa kolagene, kandi irashobora kugera kumikurire yihuse yubucucike bwa kolagen muruhu mugihe gito, kandi ikabigumana.imyaka irenga 2.

PLLA irashobora kunoza neza imikorere yuruhu rwigenga, gusana no kuvugurura imikorere itera imbaraga za kolagen na elastine, kurambura imiterere.

Gukemura ikibazo cyo kubura ubushuhe muri dermis no gutakaza kolagen kuva mumuzi, bigatuma ingirangingo zuruhu zishira, kandi uruhu rusubira muburyo bwiza bwubushuhe bwuzuye, bworoshye kandi bworoshye.

Urubanza rwo kuvura