Zida za PA mu Medical Application

Zida zaukhondo zachipatala ndi zida zapadera zomwe zimagwiritsidwa ntchito pazachipatala komanso molumikizana mwachindunji kapena mosalunjika ndi minofu yamunthu. Choncho, mankhwala ukhondo polima zipangizo, makamaka implantable mankhwala polima zipangizo, ayenera kukumana katundu sanali kawopsedwe, inertness mankhwala, histocompatibility, ngakhale magazi, kukana kwachilengedwenso ukalamba, sterilzability, sanali carcinogenicity, ndi chomasuka processing, kuti kuonetsetsa chitetezo cha zipangizo kwa thupi la munthu.

Zinthu za PA zili ndi mawonekedwe ofanana a amide okhala ndi ma macromolecules achilengedwe amthupi la munthu, ali ndi biocompatibility yabwino, ndipo sizosavuta kupanga ma cell a zamoyo kutulutsa zidziwitso zolimbikitsa.

Kuphatikiza apo, imakhala ndi kukhazikika kwamankhwala abwino komanso makina owongolera, etc. Nthawi yomweyo, ma cell amatha kukhala adsorbed pamwamba pa zinthu za PA. Zonse zapaderazi zimapangitsa kuti zida za PA zachipatala ndi zamankhwala, makamaka zida za PA zoyikidwa, zithandizire kuchepetsa misa, kusintha mawonekedwe amakina, makamaka pakuwongolera kukhazikitsidwa kwazomwe zimayenderana pakati pa zida zobzalidwa za PA ndi thupi la munthu.

Chifukwa cha mphamvu zake zamakina, ma abrasion apamwamba komanso kukana dzimbiri, komanso kuyanjana kwabwino, PA imagwiritsidwa ntchito kwambiri ngati catheter yachipatala ndi zida zina zamankhwala. Ma catheter azachipatala ndi machubu ofewa, opanda dzenje omwe amalowetsedwa m'thupi kuti athandizire kutulutsa mkodzo kapena kugwiritsidwa ntchito ngati mawaya owongolera pamagwiritsidwe osiyanasiyana pozindikira komanso kuchiza matenda amtima komanso matenda am'mimba.PA ma catheters azachipatala amagwiritsidwanso ntchito podontha mtsempha ndipo amatha zokonzedwa makamaka kuchokera ku PA6, PA66, PA11 ndi PA12.

Kutengera mawonekedwe a zida za PA, komanso zofunikira zachipatala komanso zaukhondo,Chithunzi cha BAOD Extrusionyayambitsa zoyeneraextrusion mapangidwepambuyo poyesedwa mosalekeza ndi kufufuza. Poganizira mokwanira za kulondola kwa ma catheter azachipatala komanso zofunikira zopanga mwachangu kwambiri, zimachepetsa kwambiri kuchuluka kwa zinyalala zakuthupi komanso kuchuluka kwa zinthu zolakwika. Kupyolera mu makina osinthira mpukutu ndi kudula ndi kutolera zokha, ndi zina zotero, zimapulumutsa ndalama zogwirira ntchito ndikupangitsa kuti bizinesiyo ipindule kwambiri.