Polyvinyl doro rekurapa giredhi microporous sponge imhando yepolymer zvinhu zvine yakanakisa inonwisa mashandiro uye yakanyanya kupfava pamusoro paunosangana nemuviri wemunhu, iyo inogona kuderedzwa zvachose.Kuita kwayo kwakanakisa kwekusveta hakusi muyero yekukurumidza yekuyamwa chete, asi zvakare inoratidzwa mune yayo super suction ratio.Mumamiriro ezvinhu akajairika, giramu rimwe rePAV siponji rinogona kutora kanopfuura kanomwe mvura yemuviri wayo.Naizvozvo, rudzi urwu rwezvinhu runoshandiswa zvakanyanya mukuvhiya kwemazuva ano kutsiva donje rinonwisa uye gauze rakasvibiswa, uye rinoshandiswa zvakanyanya mukuvhiya kwekiriniki yepasirese.
Polyvinyl doro rekurapa-giredhi macroporous sponge suction fluid ine mashandiro akanaka, mwero wekuvhura wakakwira, simba rakanyanya, uye yakanyanya kupfava pamusoro kana yasangana nemuviri wemunhu.Inoshandiswa zvakanyanya mumakiriniki ekuvhiyiwa kwekushungurudzika, kunyanya mumunda wekushaya simba kwemvura.Tsvina macroporous sponges inogona kuve yakasvibiswa zvachose uye haizokonzeri matambudziko ekusvibisa kune zvakatipoteredza.Kazhinji, giremu imwe yePAV macroporous sponge isina excipients inogona kutora kanopfuura kapfumbamwe mvura yemuviri wayo.Rudzi urwu rwezvinhu runoshandiswa kutsiva donje rinonyudza uye gauze rinonyudza mukuvhiya, iro rinogona kugadzirisa dambudziko rekuti donje rinonwisa kana gauze rinotora rinoda kuchinjwa nguva dzose mukushanda kwekiriniki.
Medical polyvinyl doro siponji yakagadzirwa ne polyvinyl doro mamorekuru cheni yakaporeswa nemuchinjika-inobatanidza mumiririri, isina fiber filament kana fiber musoro, uye hapazove nefiber inodonha mukushandiswa.Munguva yekuvhiyiwa kweziso, nzeve, mhino nehuro kuvhiyiwa, uropi neurosurgery craniotomy uye thoracic kuvhiyiwa mwoyo kuvhiyiwa, hazvikanganisi kuporeswa kweronda nekuda kwekubuda kwefiber.Zvinoenderana nemashandisirwo akasiyana ekiriniki, kana maexcipient akakodzera akaiswa muchipanje, anogona zvakare kukurudzira kupora kwemaronda.Panguva imwecheteyo, siponji ine yakanaka mechanicha zvinhu uye inogona kugadziriswa kuita akasiyana maumbirwo zvichienderana nekuvhiya kwakasiyana zvinodiwa.Siponji inoyamwa ropa kana chipanji muchimiro chepfumo rinoshandiswa kunyanya mukuvhiyiwa kwemicrosurgery, iyo inogona kukurumidza kubata kubuda ropa kusingaonekwi uye kuve nechokwadi kuti kuvhiya kwacho kwacho.
Peta gadzirisa chikamu ichi nzira
Kune kunyanya nzira yekupupa kwemuviri, kemikari inopupuma bvudzi uye yemuviri nekemikari musanganiswa wekupupa nzira nzira nhatu.Asi parizvino, tekinoroji yekugadzira yePVA siponji inonwisa zvinhu inonyanya kutora yekumashure starch yekuzadza furo nzira.Ndiko kuti, starch inotanga kuzadzwa muPVA mhinduro pane tembiricha yakakodzera, uye ipapo starch inogezwa mushure mekunge PVA yabatanidzwa uye yakasimbiswa pane imwe tembiricha.Kana iyi nzira inoshandiswa mukugadzira, kusvibiswa kwezvakatipoteredza kwakakomba, nzira yekutevera yekurapa yakareba, starch haigoni kucheneswa zvachose, uye starch uye acid catalyst haigoni kudzokororwa zvizere, izvo zvisingakodzeri kuchengetedza zviwanikwa. uye kuderedza mari.
Peta gadzirisa chikamu ichi maitiro ekugadzira
Kune kunyanya kubuda furo bvudzi, kemikari inopupuma bvudzi uye yemuviri uye kemikari musanganiswa wekupupa nzira dzenzira nhatu.Asi parizvino, tekinoroji yekugadzira yePVA siponji inonwisa zvinhu inonyanya kutora yekumashure starch yekuzadza furo nzira.Ndiko kuti, starch inotanga kuzadzwa muPVA mhinduro pane tembiricha yakakodzera, uye ipapo starch inogezwa mushure mekunge PVA yabatanidzwa uye yakasimbiswa pane imwe tembiricha.Kana iyi nzira inoshandiswa mukugadzira, kusvibiswa kwezvakatipoteredza kwakakomba, nzira yekutevera yekurapa yakareba, starch haigoni kucheneswa zvachose, uye starch uye acid catalyst haigoni kudzokororwa zvizere, iyo isingaiti kuchengetedza zviwanikwa. uye kuderedza mari.
Nguva yekutumira: Nov-03-2022