Nhanganyaya kune Intestinal Stents

Intestinal stent chigadzirwa chekurapa, kazhinji chimiro chetubular chakagadzirwa nesimbi kana plastiki, chinoshandiswa kugadzirisa gastrointestinal kuvharika kunokonzerwa ne intestinal stenosis kana kuvhara. Intestinal stents inogona kuiswa pasi pe endoscopy kana kuburikidza nemakomba madiki paganda, uye kuiswa kwema stents kunogona kuwedzera nzvimbo yakamanikana yehuku kudzorera intestinal patency uye kushanda. Kuiswa kwe intestinal stent inogona kushandiswa kurapa zvirwere zvakawanda zvemukati, zvakadai sebundu remukati, chirwere chinoputika, kenza yepancreatic, etc. Iyi nzira yekurapa ine zvakanakira kwete-invasive, inokurumidza, uye inoshanda, inogona kuvandudza kunaka kwe hupenyu hwevarwere uye kuderedza marwadzo avo uye zviratidzo zvekusagadzikana.

Intestinal stent imhando nyowani yechishandiso chekurapa, uye kukura kwayo kunogona kuteverwa kumashure ekupedzisira 1970s uye kutanga 1980s. Iyo yekutanga intestinal stent yaive yakagadzirwa nepurasitiki uye yainyanya kushandiswa kurapa ekumusoro gastrointestinal kuvharika kunokonzerwa nemaronda akaipa akadai segomarara regurokuro nekenza yemapapu. Nekuvandudzwa kwehunyanzvi hwekurapa, simbi stents yakashandiswa zvakanyanya mukurapa gastrointestinal kuvharika.

Muna 1991, iyo Food and Drug Administration (FDA) yeUnited States yakabvumira simbi yekutanga stent yekurapa kwebiliary uye kuvharika. Kubva ipapo, kushandiswa kwesimbi stents kwakawedzera zvishoma nezvishoma kurapa siyana gastrointestinal kuomeswa uye occlusion, akadai esophageal kenza, gastric cancer, duodenal cancer, biliary kenza, pancreatic kenza uye colorectal cancer.

Mumakore achangopfuura, nekuenderera mberi kwekufambira mberi kwehunyanzvi hwekurapa, dhizaini uye zvinhu zvemukati stents zvakavandudzwa zvakare. Dhizaini yemazuva ano intestinal stents inonyanya kuenderana neiyo biomechanical misimboti, iyo inogona kuchinjika zviri nani kune physiological maitiro emukati uye kugadzirisa yakaoma pathological mamiriro. Panguva imwecheteyo, kusarudzwa kwezvinhu zvakare kwakasiyana-siyana, kusanganisira simbi isina tsvina, cobalt chromium alloy, pure titanium, uye nickel titanium alloy. Zvishandiso zvitsva izvi hazvina kungoita zviri nani zvemakina, asi zvakare zvinodzivirira corrosion uye biocompatible, izvo zvinogona kuderedza kuitika kweakaipa maitiro uye matambudziko mushure mekudyara stent.

Senzira yekurapa inokurumidza uye inoshanda, stent yakashandiswa zvakanyanya uye inoita basa rakakosha mukurapa intestinal stenosis uye occlusion. Nekuenderera mberi nekuvandudzika kwehunyanzvi hwekuita tekinoroji, zvinotendwa kuti intestinal stents ichave nehupamhi hwakakura hwetariro yekushandisa mune ramangwana.