Cov kua nitrogen (LN2) ua lub luag haujlwm tseem ceeb hauv ntiaj teb ntawm kev siv tshuab pab yug me nyuam, ua tus neeg sawv cev cryogenic mus-rau rau kev khaws cov khoom siv muaj nqis, xws li qe, phev, thiab embryos. Muab qhov kub qis heev thiab lub peev xwm los tswj kev ruaj khov ntawm cov cellular, LN2 ua kom ntseeg tau tias kev khaws cia ntev ntawm cov qauv zoo no. Txawm li cas los xij, kev tuav LN2 muaj kev cov nyom tshwj xeeb, vim nws qhov kub txias heev, qhov nrawm nrawm thiab qhov kev pheej hmoo cuam tshuam nrog kev hloov pauv oxygen. Koom nrog peb thaum peb nkag mus rau hauv cov kev ntsuas kev nyab xeeb tseem ceeb thiab cov kev coj ua zoo tshaj plaws uas tsim nyog los tswj hwm qhov chaw khaws cia cryo ruaj ntseg thiab ua haujlwm tau zoo, kev tiv thaiv cov neeg ua haujlwm, thiab yav tom ntej ntawm kev kho mob fertility.
Haier Biomedical Kua Nitrogen Cia Khoom
Txo Kev Pheej Hmoo Hauv Kev Ua Haujlwm ntawm Chav Cryogenic
Muaj ntau yam kev pheej hmoo cuam tshuam nrog kev tuav LN2, suav nrog kev tawg, ua pa tsis taus, thiab kub hnyiab cryogenic. Txij li thaum qhov ntim nthuav dav ntawm LN2 yog li 1: 700 - txhais tau tias 1 litre ntawm LN2 yuav ua pa kom tsim tau li 700 litres ntawm cov pa nitrogen - yuav tsum tau ceev faj thaum tuav cov iav iav; lub npuas nitrogen tuaj yeem ua rau lub iav tawg, tsim cov khoom tawg uas tuaj yeem ua rau raug mob. Tsis tas li ntawd, LN2 muaj qhov ceev ntawm cov pa roj li ntawm 0.97, txhais tau tias nws tsis ntom dua huab cua thiab yuav ua ke ntawm av thaum qhov kub qis heev. Qhov kev sib sau ua ke no ua rau muaj kev phom sij ntawm kev ua pa tsis taus hauv qhov chaw kaw, ua rau cov pa oxygen hauv huab cua poob qis. Kev phom sij ntawm kev ua pa tsis taus ntxiv yog qhov sib xyaw los ntawm kev tso tawm sai ntawm LN2 los tsim cov huab cua pos huab. Kev raug rau cov pa txias no, tshwj xeeb tshaj yog ntawm daim tawv nqaij lossis hauv qhov muag - txawm tias luv luv - tuaj yeem ua rau kub hnyiab txias, frostbite, puas tsuaj rau cov ntaub so ntswg lossis txawm tias puas tsuaj rau qhov muag mus tas li.
Cov Kev Xyaum Zoo Tshaj Plaws
Txhua lub tsev kho mob txog kev xeeb tub yuav tsum ua qhov kev ntsuam xyuas kev pheej hmoo sab hauv txog kev ua haujlwm ntawm nws chav cryogenic. Cov lus qhia txog yuav ua li cas ua cov kev ntsuam xyuas no tuaj yeem tau txais hauv Cov Cai ntawm Kev Xyaum (CP) cov ntawv tshaj tawm los ntawm British Compressed Gases Association.1 Tshwj xeeb, CP36 muaj txiaj ntsig zoo rau kev qhia txog kev khaws cia cov pa roj cryogenic hauv qhov chaw, thiab CP45 muab cov lus qhia txog kev tsim chav cia cryogenic.[2,3]
TSIS MUAJ.1 Qauv
Qhov chaw zoo tshaj plaws rau chav cryogenic yog qhov uas muaj kev nkag tau yooj yim tshaj plaws. Yuav tsum xav txog qhov chaw tso lub thawv cia khoom LN2, vim nws yuav xav tau kev sau los ntawm lub thawv uas muaj siab. Qhov zoo tshaj plaws, lub thawv muab cov kua nitrogen yuav tsum nyob sab nraud ntawm chav khaws cov qauv, hauv thaj chaw uas muaj cua zoo thiab ruaj ntseg. Rau cov kev daws teeb meem khaws cia loj dua, lub thawv muab khoom feem ntau txuas ncaj qha rau lub thawv cia khoom ntawm lub raj xa dej cryogenic. Yog tias qhov kev teeb tsa ntawm lub tsev tsis tso cai rau lub thawv muab khoom nyob sab nraud, yuav tsum tau ceev faj ntxiv thaum tuav cov kua nitrogen, thiab yuav tsum tau ua qhov kev ntsuam xyuas kev pheej hmoo kom ntxaws, suav nrog kev saib xyuas thiab kev rho tawm.
TSIS MUAJ.2 Qhov cua
Txhua chav uas siv cua txias yuav tsum muaj cua nkag zoo, nrog rau cov tshuab rho tawm kom tiv thaiv cov pa nitrogen thiab tiv thaiv kom tsis txhob muaj pa oxygen ntau dhau, txo qhov kev pheej hmoo ntawm kev ua pa tsis taus. Lub tshuab no yuav tsum tsim nyog rau cov pa oxygen txias uas siv cua txias, thiab txuas nrog lub tshuab saib xyuas pa oxygen kom paub thaum cov pa oxygen poob qis dua 19.5 feem pua, uas yuav ua rau tus nqi pauv pa nce ntxiv. Cov kav dej rho tawm yuav tsum nyob rau hauv av thaum cov cuab yeej ntsuas pa oxygen yuav tsum tso li 1 'meter' siab tshaj hauv pem teb. Txawm li cas los xij, yuav tsum txiav txim siab qhov chaw tseeb tom qab kev soj ntsuam qhov chaw kom ntxaws, vim tias cov yam xws li qhov loj ntawm chav thiab kev teeb tsa yuav cuam tshuam rau qhov chaw zoo tshaj plaws. Yuav tsum muaj lub tswb ceeb toom sab nraud sab nraud ntawm chav, muab cov lus ceeb toom suab thiab pom kom qhia thaum twg tsis muaj kev nyab xeeb nkag mus.
TSIS MUAJ.3 Kev Nyab Xeeb Tus Kheej
Qee lub tsev kho mob kuj tseem yuav xaiv los muab cov neeg ua haujlwm nrog cov neeg saib xyuas cov pa oxygen thiab siv lub kaw lus phooj ywg uas tib neeg tsuas yog yuav nkag mus rau hauv chav cryogenic ua khub, txo lub sijhawm uas ib tus neeg nyob hauv chav ib zaug. Nws yog lub luag haujlwm ntawm lub tuam txhab los qhia cov neeg ua haujlwm txog lub kaw lus cia khoom txias thiab nws cov khoom siv thiab ntau tus xaiv kom cov neeg ua haujlwm kawm cov chav kawm kev nyab xeeb nitrogen online. Cov neeg ua haujlwm yuav tsum hnav cov khoom siv tiv thaiv tus kheej (PPE) kom tiv thaiv kev kub hnyiab cryogenic, suav nrog kev tiv thaiv qhov muag, hnab looj tes / hnab looj tes, khau tsim nyog, thiab lub tsho tiv no. Nws yog qhov tseem ceeb rau txhua tus neeg ua haujlwm kom dhau kev cob qhia thawj zaug txog yuav ua li cas nrog kev kub hnyiab cryogenic, thiab nws yog qhov zoo tagnrho kom muaj dej sov so ze rau ntxuav daim tawv nqaij yog tias muaj kev kub hnyiab.
NO.4 Kev Txij Nkawm
Lub thawv uas muaj cua siab thiab lub thawv LN2 tsis muaj qhov chaw txav mus los, txhais tau tias tsuas yog yuav tsum muaj daim ntawv teem sijhawm txij nkawm txhua xyoo xwb. Hauv qhov no, yuav tsum tau kuaj xyuas qhov xwm txheej ntawm lub raj cryogenic, nrog rau txhua qhov kev hloov pauv ntawm cov qhov tso pa tawm. Cov neeg ua haujlwm yuav tsum xyuas tas li tias tsis muaj qhov chaw ntawm cov dej khov - tsis hais nyob rau ntawm lub thawv lossis ntawm lub thawv pub mis - uas tuaj yeem qhia txog teeb meem nrog lub tshuab nqus tsev. Nrog kev xav txog txhua yam no, thiab daim ntawv teem sijhawm txij nkawm tsis tu ncua, cov thawv uas muaj cua siab tuaj yeem siv tau txog li 20 xyoo.
Xaus lus
Kev ua kom muaj kev nyab xeeb ntawm chav khaws cia cryo ntawm lub tsev kho mob fertility qhov twg LN2 siv yog qhov tseem ceeb tshaj plaws. Txawm hais tias cov blog no tau piav qhia txog ntau yam kev xav txog kev nyab xeeb, nws yog qhov tseem ceeb rau txhua lub tsev kho mob kom ua nws qhov kev ntsuam xyuas kev pheej hmoo sab hauv los daws cov kev xav tau tshwj xeeb thiab cov kev phom sij. Kev koom tes nrog cov kws tshaj lij hauv cov thawv cia khoom txias, xws li Haier Biomedical, yog qhov tseem ceeb kom ua tau raws li qhov xav tau cryostorage kom zoo thiab muaj kev nyab xeeb. Los ntawm kev muab qhov tseem ceeb rau kev nyab xeeb, ua raws li cov kev coj ua zoo tshaj plaws, thiab koom tes nrog cov kws tshaj lij ntseeg siab, cov chaw kho mob fertility tuaj yeem tswj hwm qhov chaw khaws cia cryo kom ruaj ntseg, tiv thaiv ob tus neeg ua haujlwm thiab kev muaj sia nyob ntawm cov khoom siv reproductive muaj nqis.
Cov ntaub ntawv siv los ua piv txwv
1. Cov Cai ntawm Kev Xyaum - BCGA. Nkag mus rau lub Tsib Hlis 18, 2023. https://bcga.co.uk/pubcat/codes-of-practice/
2. Cov Cai ntawm Kev Xyaum 45: Cov txheej txheem khaws cia biomedical cryogenic. Tsim thiab ua haujlwm. British Compressed Gases Association. Luam tawm hauv online 2021. Nkag mus rau lub Tsib Hlis 18, 2023. https://bcga.co.uk/wp-
3.content/uploads/2021/11/BCGA-CP-45-Original-05-11-2021.pdf
4. Cov Cai ntawm Kev Xyaum 36: Kev khaws cia kua dej cryogenic ntawm cov neeg siv khoom thaj chaw. British Compressed Gases Association. Luam tawm hauv online 2013. Nkag mus rau lub Tsib Hlis 18, 2023. https://bcga.co.uk/wp-content/uploads/2021/09/CP36.pdf
Lub sijhawm tshaj tawm: Lub Ob Hlis-01-2024
