Biocompatibility ya mphira silikoni

Tikakumana ndi zida zachipatala, ziwalo zopangira opaleshoni kapena opaleshoni, nthawi zambiri timawona kuti ndi zinthu ziti zomwe zimapangidwa. Kupatula apo, kusankha kwathu zida ndikofunikira. Rabara ya silicone ndi chinthu chomwe chimagwiritsidwa ntchito kwambiri pazachipatala, ndipo mawonekedwe ake abwino kwambiri a biocompatibility ndioyenera kufufuzidwa mozama. Nkhaniyi ifufuza mozama za biocompatibility ya rabara ya silikoni ndikugwiritsa ntchito kwake pazachipatala.

Rabara ya silicone ndi zinthu zokhala ndi mamolekyu apamwamba kwambiri zomwe zimakhala ndi zomangira za silicon ndi zomangira za kaboni m'mapangidwe ake amankhwala, chifukwa chake zimatengedwa ngati zakuthupi. Muzachipatala, mphira wa silikoni umagwiritsidwa ntchito kwambiri popanga zida zosiyanasiyana zamankhwala ndi zida zamankhwala, monga zolumikizira zopangira, pacemaker, ma prostheses am'mawere, ma catheter ndi ma ventilator. Chimodzi mwazifukwa zazikulu zomwe mphira wa silicone umagwiritsidwa ntchito kwambiri ndi biocompatibility yake yabwino kwambiri.

The biocompatibility wa mphira silikoni nthawi zambiri amatanthauza chikhalidwe cha kugwirizana pakati pa zinthu ndi minofu ya anthu, magazi ndi madzimadzi ena kwachilengedwenso. Pakati pawo, zizindikiro zodziwika bwino zimaphatikizapo cytotoxicity, kuyankha kotupa, kuyankha kwa chitetezo chamthupi ndi thrombosis.

Choyamba, cytotoxicity ya rabara ya silikoni ndiyotsika kwambiri. Izi zikutanthauza kuti mphira wa silikoni ukakumana ndi maselo amunthu, sudzabweretsa zotsatirapo zoyipa pa iwo. M'malo mwake, imatha kuyanjana ndi mapuloteni apamwamba a maselo ndikulimbikitsa kusinthika kwa minofu ndi kukonzanso powamanga. Izi zimapangitsa kuti mphira wa silicone ukhale wofunikira m'magawo ambiri azachipatala.

Kachiwiri, mphira wa silicone nawonso suyambitsa kuyankha kwakukulu kotupa. M'thupi la munthu, kuyankha kotupa ndi njira yodzitetezera yomwe imayambika pamene thupi lavulala kapena kachilombo kuti liteteze thupi kuti lisawonongeke. Komabe, ngati zinthuzo zokha zimayambitsa kuyankha kotupa, sizoyenera kugwiritsidwa ntchito m'chipatala. Mwamwayi, mphira wa silikoni umakhala ndi zotupa zochepa kwambiri ndipo chifukwa chake sizimayambitsa vuto lalikulu m'thupi la munthu.

Kuphatikiza pa cytotoxicity ndi kuyankha kotupa, mphira wa silicone amathanso kuchepetsa kuyankha kwa chitetezo chamthupi. Mu thupi la munthu, chitetezo cha mthupi ndi njira yomwe imateteza thupi ku tizilombo toyambitsa matenda ndi zinthu zina zoipa. Komabe, zinthu zopanga zikalowa m’thupi, chitetezo cha m’thupi chingazindikire kuti ndi zinthu zachilendo n’kuyambitsa chitetezo cha m’thupi. Kuyankha kwa chitetezo cha mthupi kungayambitse kutupa kosafunikira ndi zotsatira zina zoipa. Mosiyana ndi zimenezi, chitetezo cha mthupi cha mphira wa silicone ndi chochepa kwambiri, chomwe chimatanthauza kuti chikhoza kukhalapo m'thupi la munthu kwa nthawi yaitali popanda kuchititsa chitetezo cha mthupi.

Pomaliza, mphira wa silicone umakhalanso ndi anti-thrombotic properties. Thrombosis ndi matenda omwe amachititsa kuti magazi aziundana komanso kupanga magazi. Ngati magazi atuluka ndipo amatumizidwa kumadera ena, angayambitse matenda a mtima, sitiroko, ndi matenda ena aakulu. Rabara ya silicone imatha kuletsa thrombosis ndipo ingagwiritsidwe ntchito pazida monga ma valve amtima opangira, kuteteza bwino matenda monga matenda a mtima ndi sitiroko.

Mwachidule, biocompatibility ya rabara ya silicone ndiyabwino kwambiri, yomwe imapangitsa kuti ikhale yofunika kwambiri pazachipatala. Chifukwa cha kuchepa kwa cytotoxicity, kuchepa kwa kutupa, kuchepa kwa chitetezo cha mthupi komanso anti-thrombotic, mphira wa silikoni ukhoza kugwiritsidwa ntchito kwambiri popanga ziwalo zopangira, zida zamankhwala ndi zinthu zopangira opaleshoni, ndi zina zotero, kuthandiza odwala kupeza zotsatira zabwino za chithandizo ndi khalidwe la moyo.