Medical ziphene zeplastiki yokubumba nokubumba

Inkcazo emfutshane:

I-MESTECH ivelisa ukungunda kunye nokuveliswa kwenaliti. Ezona mveliso ziphambili zibandakanya: isirinji yenaliti, isirinji enokulahlwa, isinxibelelanisi, isiciko seplastiki esingafihlisiyo, umququ, ibhokisi yezonyango, isikhongozeli, izixhobo zoqhaqho, uqinisa igubu, inaliti yeplastikhi, ibhokisi yezixhobo, isixhobo sokuqonda isifo kunye nendawo yokuncedisa ukuva, kunye nendawo yokubiyela yezixhobo zonyango .


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I-MESTECH ivelisa ukungunda kunye nokuveliswa kwenaliti. Ezona mveliso ziphambili zezi:

Isirinji yenaliti, isirinji elahlwayo, isinxibelelanisi, isiciko seplastikhi, istro, ibhokisi yezonyango, isikhongozeli, izixhobo zoqhaqho, ukubamba igubu, inaliti yeplastiki, ibhokisi yezixhobo, isixhobo sokuqonda isifo kunye nendawo yokuhlala yoncedo lokuva, kunye nendawo ebiyelweyo yezixhobo zonyango.

Kukho imigangatho emininzi yokwenza izibumba zonyango. Phantse yonke imveliso eyahlukileyo inemigangatho eyahlukeneyo. I-China ngumvelisi omkhulu wezobumba zeplastiki kwihlabathi. Imfuneko yokubumba kwezonyango iphezulu kakhulu. Umgangatho ophambili wemveliso uqulethwe kwiimveliso, ezinjengeemveliso ezininzi zonyango ezinamalungu eRuhr. Lo ngumgangatho wemveliso. Ukuba umngundo mveliso awuqondi lo mgangatho, uya kuba yingxaki. Kukwakho nemigangatho emininzi yokubumba kunye nomgangatho wesizwe wobungakanani bemveliso, ubukhulu becala ekuvelisweni okuzenzekelayo, kwiminyango emininzi, kwaye akukho burr iphaphazelayo.

Iimveliso Medical Inaliti Common Ukubumbela

1. Umbhobho weHemodialysis, imaski yokuphefumla, ityhubhu yokuphefumla ioksijini, isitya segazi esenziwe ngumntu, njl.

2. Iimpundu ezingezizo, amadolo namagxa.

Ukupakisha, isirinji, isirinji elahliweyo, isinxibelelanisi, isiciko seplastikhi, ipipette,

Iikomityi, iikepusi, iibhotile, ukupakishwa kwezithambiso, iihanger, iithoyi, izinto ezibambela i-PVC, ukupakisha ukutya kunye neengxowa zonyango

Izixhobo ze-5.Usetyenziso, iiklip zegubu, iinaliti zeplastiki, iibhokisi zezixhobo, izixhobo zokuqonda isifo kunye nezinto zokuncedisa ukuva, ngakumbi izindlu zezixhobo zonyango ezikhulu

6. Iifilitha zedialysis yokuhluza, abanini bezixhobo zotyando kunye neetanki zomoya

7.Imithambo yegazi eyenziweyo, inwebu yentliziyo, ii-endoscopes, i-forceps, i-trachea

Iimfuno zeemveliso zeplastiki zonyango

Izinto ezikwizixhobo zeplastiki azinakugungxulwa kulwelo okanye emzimbeni womntu, kwaye azizukubangela ityhefu kunye nokonakala kwizicwili kunye namalungu. Ayiyityhefu kwaye ayinabungozi emzimbeni womntu. Imfuno esisiseko yeeplastiki zonyango kukuzinza kwemichiza kunye nokukhuseleka ngenxa yokunxibelelana namayeza alulwelo okanye umzimba womntu. Ukuqinisekisa ukhuseleko lwe-bio zeplastikhi zonyango, iiplastikhi zonyango ezihlala zithengiswa kwimarike ziqinisekisiwe kwaye zavavanywa ngabasemagunyeni kwezonyango, kwaye zazise ngokucacileyo abasebenzisi ukuba loluphi uphawu lwenqanaba lonyango.

Okwangoku, inani elibonakalayo lezinto zeplastiki zonyango azingqiniswanga ngokungqongqo njengokhuseleko lwe-bio, kodwa ngokuphuculwa kwemigaqo ngokuthe ngcembe, le miqathango iya kuphuculwa. Iiplastikhi zonyango eUnited States zihlala zigqitha ukuqinisekiswa kwe-FDA kunye novavanyo lwebhayiloji ye-USPVI, ngelixa iiplastikhi zonyango e-China zikwanazo namaziko ovavanyo lwezixhobo zonyango. Ngokweemfuno zesakhiwo kunye namandla emveliso yezixhobo, sikhetha uhlobo lweplastikhi olufanelekileyo kunye nophawu, kwaye simisele itekhnoloji yokulungisa izinto. Ezi propati zibandakanya ukusebenza ngokuqhubekekayo, amandla oomatshini, iindleko zokusebenzisa, indlela yendibano, inzalo njalo njalo.

iiplastikhi zonyango zeplastiki

Iindawo zeplastiki zonyango

Kukho iimfuno ezithile kubume bemveliso yeemveliso zeplastiki zonyango

Iimveliso zeplastiki zonyango zihlala zenziwa ngenaliti yokubumba, efuna kungekuphela nje izinto ezisetyenzisiweyo zeplastikhi, kodwa kunye nendawo yokubumba ngenaliti yeemveliso zeplastiki ezahlukeneyo.

Ukufakwa komzimba womntu okanye izikhongozeli kunye neesirinji ezinamayeza kunye nolwelo, imeko yemveliso ayinalo uthuli, kwaye inkqubo yokuvelisa kunye nokupakisha zisebenza ngokungqongqo kwindawo enothuli. Kwezinye izixhobo zonyango kunye nezixhobo eziqhelekileyo, iimfuno zeqokobhe zikhululekile ngakumbi, ke zinokuveliswa kwimeko yemveliso ngokubanzi.

Ukwahlulahlula iiplastikhi zonyango ezisetyenziswa rhoqo

Iiplastikhi zinokusetyenziswa kwiiplastikhi zonyango ngexabiso eliphantsi, ngaphandle kokubulala iintsholongwane kunye nokusetyenziswa kwakhona, kwaye kufanelekile ukuveliswa kwezixhobo zonyango ezilahlwayo; kulula ukuqhubekeka, kwaye ingaqhubekeka ibe ngamacandelo ahlukeneyo aluncedo ngokusebenzisa iplastikhi yayo, ngelixa isinyithi kunye neglasi kunzima ukuvelisa iimveliso ezinezakhiwo ezintsonkothileyo; iqine kwaye iyanwebeka, hayi ukuba buthathaka njengeglasi; inertia elungileyo yemichiza kunye nezinto zokwenza imveliso. Ukhuseleko lwemveliso.

 

Ezi zibonelelo zenza iiplastiki zisetyenziswe ngokubanzi kwizixhobo zonyango, kubandakanya i-polyvinyl chloride (i-PVC), i-polyethylene (PE), i-polypropylene (PP), i-polystyrene (PS), i-polycarbonate (i-PC), i-ABS, i-polyurethane, i-polyamide, i-thermoplastic elastomer, i-polysulfone kunye ne-polyetheretherketone. Ukudibanisa kunokuziphucula iiplastikhi kwaye kwenziwe i-polycarbonate / i-ABS, ipolypropylene / i-elastomer kunye nezinye ii-resin ezinezona mpawu zibalaseleyo.

 

Iiplastikhi zonyango ezisibhozo eziqhelekileyo ezisetyenziswayo zii-polyvinyl chloride (PVC), i-polyethylene (PE), i-polypropylene (PP), i-polystyrene (PS) kunye ne-K resin, i-acrylonitrile butadiene styrene (ABS), i-polycarbonate (i-PC) kunye ne-polytetrafluoroethylene (PTFE). Emva kokudityaniswa kweeplastikhi eziqhelekileyo, zonke zingumgubo ocoliweyo kwaye azinakusetyenziselwa ukuvelisa ngokuthe ngqo kweemveliso. Nantso into edla ngokuthethwa ngabantu emithini. Amafutha akhutshwe kwijusi ayafana, ekwabizwa ngokuba yi-resin, ekwabizwa ngokuba ngumgubo. Le yiplastiki emsulwa. Inobushushu obuphantsi, uzinzo olushushu oluphantsi, ukuguga ngokulula kunye nokubola, kwaye ayimelani nokuguga kwendalo.

 

Iiplastikhi zonyango ezisibhozo eziqhelekileyo ezisetyenziswayo zii-polyvinyl chloride (PVC), i-polyethylene (PE), i-polypropylene (PP), i-polystyrene (PS) kunye ne-K resin, i-acrylonitrile butadiene styrene (ABS), i-polycarbonate (i-PC) kunye ne-polytetrafluoroethylene (PTFE). Emva kokudityaniswa kweeplastikhi eziqhelekileyo, zonke zingumgubo ocoliweyo kwaye azinakusetyenziselwa ukuvelisa ngokuthe ngqo kweemveliso. Nantso into edla ngokuthethwa ngabantu emithini. Amafutha akhutshwe kwijusi ayafana, ekwabizwa ngokuba yi-resin, ekwabizwa ngokuba ngumgubo. Le yiplastiki emsulwa. Inobushushu obuphantsi, uzinzo olushushu oluphantsi, ukuguga ngokulula kunye nokubola, kwaye ayimelani nokuguga kwendalo.

 

Ukuze kuphuculwe ezi ziphene, izinto ezomeleza ubushushu, iiarhente ezichasene nokuguga, iiarhente ezichasene ne-ultraviolet kunye neeplasticizers zongezwa kwi-resin powder. Emva kokuguqulwa kwe-granulation, ukunyuka kwe-resin powder kuyanda, kwaye iintlobo ezahlukeneyo zeplastiki ezineempawu ezizodwa kunye namabanga ahlukeneyo aveliswayo. Iiplastikhi ezisetyenziswa rhoqo ngabavelisi bezixhobo zonyango zitshintshile amasuntswana eplastiki anokusetyenziswa ngokuthe ngqo. Kwiimveliso ezineempawu ezizodwa ezingafumanekiyo kwintengiso, iifektri zezixhobo zinokwazisa imigca yemveliso yegranulation kwinkqubo kwaye ivelise amasuntswana eplastiki kuyilo loyilo olwahlukileyo. Ke ngoko, zininzi iimveliso zolu hlobo lweplastiki. Ngokwendlela yokuqhubekeka, kukho inqanaba lenaliti, ibakala le-extrusion kunye nenqanaba lefilimu; ngokwentsebenzo, zininzi iintlobo,

 

Iiplastikhi ezisetyenziswa ekwenziweni kweemveliso zonyango zezi:

1. IPolyvinyl chloride (iPVC)

Ngokweziqikelelo zentengiso, malunga neepesenti ezingama-25 zeemveliso zeplastiki zonyango ziiPVC. I-PVC yenye yeemveliso zeplastiki ezinkulu emhlabeni. I-PVC resin yomgubo omhlophe okanye omthubi okhanyayo, ulwakhiwo olucocekileyo lwe-PVC, olunzima kwaye olunobukrwada, kunqabile ukuba kusetyenziswe. Izongezo ezahlukeneyo zinokongezwa ngokokusetyenziswa okwahlukileyo ukwenza iinxalenye zeplastiki zePVC zibe neempawu ezahlukeneyo zomzimba kunye nezomatshini. Iimveliso ezahlukeneyo ezingqongqo, ezithambileyo nezingafihliyo zingenziwa ngokongeza isixa esifanelekileyo seplastizer kwi-resin yePVC.

 

I-Rigid PVC ayiqulathanga okanye iqulathe inani elincinci leplastifier. Inokuqina okuguqulweyo, ukugoba, uxinzelelo kunye neepropathi zempembelelo, kwaye inokusetyenziswa njengezinto zokwakha zodwa. I-PVC ethambileyo iqulethe ii-plasticizers. Ukuthamba kwayo, ubude bayo ngexesha lekhefu kunye nokunyuka kwengqele kuyanda, kodwa ubungqindilili, ubunzima kunye namandla oqina ayancipha. Ukuxinana kwe-PVC emsulwa yi-1.4g / cm3. Ukuxinana kwamalungu e-PVC aneeplasticizers kunye nokuzaliswa kuhlala kuluhlu lwe-1.15-20 g / cm3. Oku ikakhulu kungenxa yexabiso eliphantsi, usetyenziso olubanzi kunye nokusebenza ngokulula. Ukusetyenziswa kwezonyango kweemveliso zePVC kubandakanya: ipayipi yehemodialysis, imaski yokuphefumla, ityhubhu yeoksijini, njl.

 

2. IPolyethylene (PE):

Iplastiki ye-Polyethylene lolona hlobo lwesivuno luphezulu kushishino lweplastiki. Zinobisi obumhlophe obumhlophe, obungenasongo, kwaye obungenabungozi. Ibonakaliswa ngexabiso eliphantsi kunye nokusebenza kakuhle. Ingasetyenziswa ngokubanzi kumzi mveliso, ezolimo, ukupakisha kunye nokusetyenziswa kwemihla ngemihla. Idlala indima ebalulekileyo kwishishini leplastiki.

 

I-PE ikakhulu ibandakanya i-polyethylene (LDPE), uxinizelelo oluphezulu lwe-polyethylene (i-HDPE) kunye ne-polyethylene enobunzima obuphezulu (uhdpe). I-HDPE ine-chain encinci, i-molecular weight weight, i-crystallinity kunye nokuxinana, ubunzima obuphezulu kunye namandla, ukukhanya okungahambi kakuhle kunye neqondo eliphezulu lokunyibilika. Ihlala isetyenziselwa inaliti yokubumba iinxalenye. I-LDPE inamatyathanga amaninzi, ngoko ke inobunzima obunobunzima obuncinci be-molecular, i-crystallinity ephantsi kunye nokuxinana, kwaye inokuba bhetyebhetye okuhle, ukumelana nefuthe kunye nokungafihli nto. Ihlala isetyenziselwa ukufutha kwefilimu kwaye isetyenziswa ngokubanzi kwiPVC. I-HDPE kunye ne-LDPE zinokuxutywa ngokweemfuno zomsebenzi. I-Uhdpe inamandla amakhulu empembelelo, ukungqubana okuphantsi, uxinzelelo lokuchasana noxinzelelo kunye neempawu ezilungileyo zokufunxa amandla, okwenza ukuba ibe yinto efanelekileyo yokudibanisa i-hip joint,

 

3. Ipolypropylene (PP)

I-Polypropylene ayinambala, ayinambitheki kwaye ayinabungozi. Ijongeka ngathi yipolyethilini, kodwa icacile kwaye ikhaphukhaphu kune-polyethylene. I-PP luhlobo lwe-thermoplastic eneempawu ezintle. Inezinto eziluncedo zomxhuzulane othile (0.9g / cm3), non-toxic, easy to process, resistance resistance and flexibility resistance. Inoluhlu olubanzi lwezicelo kubomi bemihla ngemihla, kubandakanya iingxowa ezilukiweyo, iifilimu, iibhokisi zengeniso, izinto zokukhusela ngocingo, iithoyi, iibhombu zemoto, imicu, oomatshini bokuhlamba, njl.

 

I-PP yezonyango inokucaca okuphezulu, isithintelo esihle kunye nokumelana nemitha, eyenza ukuba isetyenziswe ngokubanzi kwizixhobo zonyango nakwimveliso yokupakisha. Izinto ezingezizo ze-PVC ezine-PP njengeyona nto iphambili ekubambeni kwezinto ze-PVC ezisetyenziswa ngokubanzi ngoku.

 

4. IPolystyrene (PS) kunye nentlaka yeK

I-PS yiplastikhi yesithathu ngobukhulu emva kwePVC kunye ne-PE. Ihlala isenziwa kwaye isetyenziswe njengeplastiki enento enye. Iimpawu zayo eziphambili zinobunzima bokukhanya, ukungafihli nto, kulula ukudaya kunye nokubumba okuhle kunye neepropathi zokuqhubekeka. Ke ngoko, i-PS isetyenziswa ngokubanzi kwiplastikhi yemihla ngemihla, izixhobo zombane, izixhobo zamehlo kunye nezixhobo zemfundo. Ngenxa yobunzima bayo obomeleleyo kunye nobukrakra kunye ne-coefficient ephezulu yokwanda kwe-thermal, ukusetyenziswa kwayo kubunjineli kunqunyelwe.

 

Kumashumi eminyaka akutshanje, i-polystyrene eguqulweyo kunye ne-styrene esekwe kwii-copolymers eziye zanqoba ukusilela kwe-polystyrene. I-potassium resin yenye yazo. Ezona zinto zisetyenziswayo kubomi bemihla ngemihla zibandakanya iikomityi, iminqwazi, iibhotile, ukupakishwa kwezithambiso, iihanger, iithoyi, izinto ezibambela i-PVC, ukupakishwa kokutya kunye nokupakishwa kwamayeza.

 

5. I-Acrylonitrile butadiene styrene copolymer (ABS)

I-ABS inokuqina okuthile, ubulukhuni, ukunganyangeki kwempembelelo, ukunganyangeki kwemichiza, ukumelana nemitha kunye nokubulala iintsholongwane kwi-ethylene oxide. I-ABS isetyenziswa ikakhulu kwizicelo zonyango njengezixhobo zoqhaqho, iiklip zegubu, iinaliti zeplastiki, ibhokisi yezixhobo, izixhobo zokuqonda isifo kunye neqokobhe loncedo lokuva, ngakumbi izixhobo zonyango ezikhulu. Kwicandelo lezonyango, i-ABS idla ngokuqhubekiswa ngenaliti yokubumba, kwaye phantse akukho sicelo sokuvuthela ifilimu kunye nombhobho extrusion.

 

6. IPolycarbonate (PC)

Iimpawu zesiqhelo zePC kukuqina, ukomelela, ukuqina kunye nokucoca ubushushu obunganyangekiyo obenza ukuba iPC ibe lukhetho lokuqala lokucoca ulwelo, isixhobo sokuphatha kunye netanki leoksijini. . Ukusetyenziswa kwe-PC kunyango kubandakanya inaliti encinci yenaliti, isixhobo se-perfusion, icentrifuge yegazi kunye nepiston. Ngenxa yokucaca kwayo okuphezulu, iiglasi eziqhelekileyo ze-myopia zenziwe ngePC.

 

7. IPolytetrafluoroethylene (PTFE)

I-PTFE resin yimpuphu emhlophe ene-waxy, egudileyo nengabonakaliyo. I-PTFE yaziwa ngokuba yi "king of plastiki" ngenxa yeempawu zayo ezigqwesileyo, ezinokuthelekiswa nezinye iiplastikhi zethemplastic. Inolungelelwaniso olusebenzayo olusezantsi phakathi kweeplastikhi kwaye inokuhambelana okungqinelanayo. Ingasetyenziselwa ukwenza imithambo yegazi yokufakelwa kunye nezinye izixhobo ezifakwe ngokuthe ngqo emzimbeni womntu. Kunzima ukujongana nayo. Umgubo uhlala ubanda ucinezelwe kungenanto uze ucofe okanye ukhuphe. Akukhuthazwa ukuba umenzi wesixhobo avelise le mveliso. Ukuba ubungakanani buncinci, kuyacetyiswa ukuba ubuthenge ngokuthe ngqo.

 

8. IPolyamide (PA)

Injongo: umbhobho, isinxibelelanisi, iadaptha, ipiston.


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